KR101006400B1 - Illumination apparatus having a temperature maintenance part - Google Patents

Abstract

The present invention provides a lighting device having a temperature holding part. The lighting device is disposed on the printed circuit board and the printed circuit board at predetermined intervals, and the LEDs are turned on by receiving power from the outside, and a first opening is formed at one side thereof, and a plurality of second openings are formed at the front side thereof. Body parts are formed; And a temperature maintaining part installed at the body part and maintaining the internal temperature of the body part at a predetermined temperature. Therefore, the present invention can maintain the temperature inside the body portion formed at a high temperature due to the LEDs are turned on at a predetermined temperature, and the temperature is emitted as heat due to light emitted from the LEDs inside the body portion to the outside. It can be guided to lower, monitor the power status supplied to the LEDs in the body portion that maintains the temperature to visually inform the outside of the operation status of the LEDs, and also to stop the operation of the LEDs in abnormal conditions, such as device failure The accident can be prevented in advance.

Lighting device, lighting, temperature, LED, first and second opening and closing means.

Description

ILLUMINATION APPARATUS HAVING A TEMPERATURE MAINTENANCE PART}

The present invention relates to a lighting apparatus, and more particularly, to a lighting apparatus having a temperature maintaining part capable of maintaining a constant temperature inside the body portion in which the LEDs are installed and for monitoring the operating state of the LEDs.

Background Art Conventionally, various light sources such as fluorescent lamps, neon lights and halogens have preoccupied. However, in recent years, LEDs (light emitting devices) have been spotlighted as light sources for signs.

The reason why the LED is spotlighted as a sign light source is because of the device characteristics of the LED.

Conventional light sources emit light using mercury, but the LEDs are eco-friendly because they do not use mercury, and maintenance costs are reduced because they consume less power.

In addition, the LED has a longer life than the conventional light source, has excellent durability and robust characteristics.

In addition, due to the change in the perception of the sign, as the three-dimensional sign and the channel sign have become a recent trend, small and light LEDs are attracting attention as an internal light source.

In particular, as LEDs are becoming more bright, the utilization of sign light sources is becoming more active. Currently, the luminous efficiency of LED is increased by 30 times every 10 years, so the performance index of red and orange yellow LED has already exceeded the level of fluorescent lamp, and the efficiency of white LED commercial products is announced as 40 ~ 50lm / W. In addition, as the development of technology is being carried out in various aspects such as LED related chip structure, LED substrate, fluorescent material and package structure, the brightness of LED is expected to be further improved.

The LED has been gradually used in the sign field in that the brightness and luminous efficiency is gradually improved, and is driven at a low voltage, there is no risk of electric shock. In particular, as the recognition of three-dimensional signs such as molding signs and channel signs increases, they are actively applied as internal light sources, and the use of buildings and landscape lighting is also increasing due to the applicability of LEDs and the spectacular production effects.

In addition, in recent years, 3W LEDs are used to achieve high-brightness lighting, thereby increasing the efficiency of lighting.

However, the conventional LED lighting apparatus using the LED as described above is provided with a bar-shaped housing having a predetermined length, a printed circuit board having a predetermined length installed inside the housing, and the printed circuit board at regular intervals. LEDs emit light of various colors and a power supply unit for supplying power to the LEDs. When the LEDs use high brightness LEDs of 3W, a high temperature of a predetermined temperature or more is formed inside the housing.

Therefore, in the related art, 3W LEDs are turned on so that the temperature inside the housing formed at a high temperature cannot be maintained at a predetermined temperature. Accordingly, the electronic components including the LEDs installed on the printed circuit board are damaged and the landscape lighting device itself There was a problem that the life is shortened.

Therefore, in the related art, since there is no device capable of adjusting the temperature inside the housing separately, since the landscape lighting is produced by setting a reference use time, there is a problem that the lighting cannot be produced by extending the time other than a predetermined time.

In addition, in the related art, since 3W LEDs could not detect raindrops, such as rainwater, on the outside of the installed body part, there was a problem of causing an electrical accident.

The present invention has been made to solve the above problems, the first object of the present invention is a lighting device having a temperature holding unit that can maintain the temperature inside the body portion formed at a high temperature due to the LEDs are turned on at a predetermined temperature In providing.

It is a second object of the present invention to provide a lighting apparatus having a temperature maintaining part which can guide the temperature due to the light emitted from the LEDs from the inside of the body portion to the outside as the temperature is lowered.

The third object of the present invention is to monitor the power state supplied to the LEDs in the body portion that maintains the temperature and to visually notify the LEDs of the operating state of the LEDs, and to stop the LEDs in the abnormal state, such as device failure. It is to provide a lighting device having a temperature holding unit that can prevent accidents in advance.

Illumination apparatus having a temperature maintaining unit of the present invention for achieving the above object is disposed on the printed circuit board and the printed circuit board at regular intervals, the LED is turned on by receiving power from the outside, the one side portion A body portion having one opening formed therein and a plurality of second openings formed at the front portion thereof; And

Is installed in the body portion, and includes a temperature maintaining unit for maintaining the internal temperature of the body portion at a predetermined temperature,

The temperature maintaining part includes first opening and closing means for fixing one end to the outer surface of the body portion outside the first opening, and second opening and closing means for fixing one end to the outer surface of the body portion of each of the second openings. ,

The first opening and closing means and the second opening and closing means is made of a bimetal that has a higher thermal expansion coefficient when the internal temperature is increased and more bent to the outside, and then restored to its original state when the temperature is lowered again,

The first opening and closing means bends to expose the first opening to the outside when the first opening is higher than the reference temperature, and returns to the original state so that the first opening is cut off from the outside when the second opening is substantially the same as the reference temperature. ,

The second opening and closing means are bent to expose the second openings to the outside when the first temperature is reached, and the inside of the body portion is circulated with the outside, and when the second temperature is reached, the second openings are cut off from the outside. It is characterized in that to return to block the inside of the body portion from the outside.

The temperature maintaining part is installed inside the body to detect a temperature inside the temperature sensor, a blowing fan installed in the first opening, and electrically connected to the temperature sensor and the blowing fan, and a reference temperature is set. Control means, first opening / closing means of which one end is fixed to the outer surface of the body portion outside the first opening, and second opening / closing means of which one end is fixed to the outer surface of the body portion of each of the second openings. ,

The control means receives the temperature sensed in the interior from the temperature sensor, characterized in that for driving the blowing fan so that the received temperature is equal to the reference temperature.

Illumination device having a temperature maintaining unit of the present invention is disposed on the printed circuit board and the printed circuit board at regular intervals, the LED is turned on by receiving power from the outside, the first opening is formed in one side portion and the front portion A body portion having a plurality of second openings formed therein; And a temperature maintaining part installed at the body part and maintaining an internal temperature of the body part at a predetermined temperature.

The temperature maintaining part is installed inside the body to detect a temperature inside the temperature sensor, a blowing fan installed in the first opening, and electrically connected to the temperature sensor and the blowing fan, and a reference temperature is set. Control means, first opening / closing means of which one end is fixed to the outer surface of the body portion outside the first opening, and a plurality of second opening / closing means of which one end is fixed to the outer surface of the body portion of each of the second openings. Equipped with

The control means receives the temperature sensed from the inside by the temperature sensor, and drives the blowing fan so that the received temperature is equal to the reference temperature,

The first opening and closing means and the second opening and closing means is made of a bimetal that is restored to its original state when the internal temperature is higher and the thermal expansion coefficient is larger and the outer side and the temperature is lowered again,

The first opening and closing means is bent so that the first opening is exposed to the outside when the first temperature is higher than the reference temperature and the blower fan is operated by receiving an electrical signal from the control means, and substantially the same as the reference temperature When the second temperature is reached, the first opening is returned to the original state so as to be cut off from the outside, and the blower fan receives an electrical signal from the control means, and the operation is stopped. The two openings are bent to expose the outside, and the inside of the body portion is circulated with the outside, and when the second temperature reaches the original state so that the second openings are blocked from the outside, and the inside of the body portion is blocked from the outside. It is done.

In addition, the body portion is provided with a cover on the upper portion so that the light due to the lighting of the LEDs installed on the bottom of the body portion is emitted to the outside.

Here, the inner space of the body portion is formed to be sequentially widened along the upper side in which the cover is disposed at the bottom, it is preferable that the inner surface of the body portion is formed to step along the top at the bottom.

In addition, the control means is electrically connected to a power supply unit for supplying power to the LEDs, electrically connected to a display unit having a blue light bulb and a red light bulb, and the power supply unit is electrically connected to a power measurement unit. The power measuring unit measures a power value applied to the LEDs and transmits the power value to the control means.

The control means determines whether the measured power value is within a preset reference power value range, and when the measured power value is out of the preset reference power value range, an electric signal to the display unit. Transmits to turn on the red light bulb and stops the power supply, and when the measured power value is within the preset reference power value range, maintains the operation of the power supply and displays the display. It is preferable to transmit the electrical signal to the blue light bulb to turn on.

In addition, a push switch having an internal contact electrically connected to the control means may be installed in the body portion of the first opening.

Here, the push switch is a switch body is formed in a predetermined space therein and the opening is formed on one side and the locking jaw is formed on the inner wall, and is disposed on the switch body so as to protrude through the opening and is pressed by the external force flow and the outer periphery A pressing portion formed at a protrusion in the vicinity of the opening, an elastic member holding the locking jaw and the bottom of the pressing portion in the switch body, and a predetermined length extending from the pressing portion so as to pass the locking jaw. One contact point and a second contact point are provided on the locking step.

Here, the first contact is electrically connected to the blowing fan, the second contact is electrically connected to the control means, the first opening and closing means is in close contact with the outer surface of the body portion is pressed the pressing portion and the first When the contact point and the second contact point are spaced apart from each other, it is preferable that the control means and the blower fan are electrically disconnected.

In addition, the control means is electrically connected to the alarm generating unit, the control means preferably transmits an electrical signal to the alarm generating unit to generate an alarm when the received temperature reaches the first temperature.

The present invention has the effect of maintaining the temperature inside the body portion that is high temperature by the heat generated by the LEDs are turned on to a predetermined temperature.

The second object of the present invention has the effect of guiding so that the temperature is lowered as heat due to the light emitted from the LEDs in the body portion is emitted to the outside.

The third object of the present invention is to monitor the power state supplied to the LEDs in the body portion that maintains the temperature and to visually notify the LEDs of the operating state of the LEDs, and to stop the LEDs in the abnormal state, such as device failure. It has the effect of preventing accidents in advance.

Hereinafter, with reference to the accompanying drawings, it will be described a lighting device having a temperature holding unit according to an embodiment of the present invention.

1 is a perspective view showing an example of a lighting device having a temperature maintaining part of the present invention. 2 is a perspective view showing another example of a lighting device having a temperature holding part of the present invention. 3 is a perspective view illustrating an arrangement state of the first opening and closing means and the second opening and closing means provided in the body of FIG. 2. Figure 4 is a block diagram showing the operation of the temperature holding unit according to the present invention. 5 is a cross-sectional view taken along the line II ′ shown in FIG. 1. 6 is a view showing the operation of the blower fan and the first opening and closing means according to the present invention. 7 is a partial cross-sectional view showing that the push switch is installed in the body portion according to the present invention.

1 to 4, the lighting device having a temperature maintaining part of the present invention is disposed on the printed circuit board 120 and the printed circuit board 120 at regular intervals and is turned on by receiving power from the outside. LEDs 130 are installed, the body portion 100 is formed with a first opening 101 on one side and a plurality of second openings 102 formed on the front surface; And

It is installed on the body portion 100, and includes a temperature maintaining unit 200 for maintaining the internal temperature of the body portion 100 to a predetermined temperature.

The temperature maintaining part 200 has a first opening and closing means 250, one end of which is fixed to the outer surface of the body portion 100 outside the first opening 101, and each of the second openings 102 It is provided with a second opening and closing means 251, one end of which is fixed to the outer surface of the body portion.

The first opening and closing means 250 and the second opening and closing means 251 is made of a bimetal that is restored to its original state when the internal temperature increases and the thermal expansion coefficient is larger and the outer bending and the temperature is lowered again. .

The first opening and closing means 250 is bent to expose the first opening 101 when the first temperature is higher than the reference temperature to the outside and the first opening 101 when the second temperature is substantially the same as the reference temperature ) Is returned to its original state so as to cut off from the outside.

When the first opening and closing means 251 is bent to expose the second openings 102 to the outside when the first temperature is reached, and distributes the inside of the body portion 100 to the outside, when the second temperature By returning the second opening 102 to the original state to be blocked from the outside to block the inside of the body portion 100 from the outside.

The temperature maintaining part 200 is installed inside the body part 100 to detect the temperature inside the temperature sensor 210, the blowing fan 230 is installed in the first opening 101, It is electrically connected to the temperature sensor 210 and the blowing fan 230, one end of the control means 240, the reference temperature is set, and the outer surface of the body portion 100 outside the first opening 101 The first opening and closing means 251 is fixed, and the second opening and closing means one end is fixed to the outer surface of the body portion of each of the second openings,

The control means receives the temperature sensed in the interior from the temperature sensor, characterized in that for driving the blowing fan so that the received temperature is equal to the reference temperature.

1 and 4 to 6, the lighting device having a temperature maintaining part of the present invention maintains the body portion 100 having a predetermined length, the temperature maintaining the internal temperature of the body portion 100 at a constant temperature It has a part 200.

First, the configuration of the body portion 100 will be described.

The body portion 100 has a predetermined space formed therein, has a predetermined length and has an open top shape.

The cover 110 of the translucent or transparent material is fastened to the upper portion of the body portion 100. At this time, a hole is formed in the upper surface of the edge of the cover 110 and the body portion 100, the bolt (B) is fastened to the hole, the cover 110 and the body portion 100 is coupled to each other.

The printed circuit board 120 having a predetermined length is installed inside the body portion 100. The printed circuit board 120 is provided with a plurality of LEDs 130 along the longitudinal direction of the printed circuit board 120 and spaced apart from each other at regular intervals. Here, the LEDs 130 may be a 3 watt LED.

The LEDs 130 may be connected to an external power supply unit 140 and may be turned on by receiving power from the power supply unit 140.

The inner space of the body portion 100 is formed to be sequentially widened along the upper side in which the cover 110 is disposed at the bottom.

In addition, the inner surface of the body portion 100 is formed to be stepped along the top at the bottom.

Therefore, when the 3W LEDs 130 are turned on, heat due to the lighting of the LEDs 130 may increase the temperature inside the body portion 100.

Accordingly, the body portion 100 according to the present invention is formed such that its inner surface is stepped from the bottom of the body portion 100 along the top, and gradually formed to widen the space, thereby generating heat from the LEDs 130. The heat may be lowered toward the top of the body portion 100.

Next, the configuration of the temperature holding unit 200 according to the present invention.

The temperature maintaining part 200 may be installed in the body part 100 and maintain the internal temperature of the body part 100 at a predetermined temperature.

The temperature maintaining part 200 is installed inside the body part 100 to detect a temperature inside the temperature sensor 210 and the first opening 101 formed in one side of the body part 100. Blowing fan 230 is installed in the), and the temperature sensor 210 and the control means 240 is electrically connected to the blowing fan 230, the reference temperature is set. Here, the blowing fan 230 is connected to a motor 231 electrically connected to the control means 240. The motor 231 receives the electrical signal from the control means 240 and serves to rotate the blade of the blowing fan 230.

The control means 240 receives the temperature sensed therein from the temperature sensor 210 and drives the blowing fan 230 so that the received temperature is equal to the reference temperature.

In addition, the temperature maintaining part 200 is installed in the body part 100 to be located in the plurality of second openings 102 formed in the body part 100 and the body part 100 has an opening temperature ( Or the first temperature) may be provided with a second opening and closing means 251 made of a bimetal to open the second opening 102.

One end of the first opening and closing means 250 and the second opening and closing means 251 is a body near the first opening 101 or the second opening 102 by a fastening means such as a bolt B and a nut N. It is fastened to the outer surface of the part (100).

Here, the opening temperature may be formed equal to or higher than the reference temperature.

The operation of the temperature maintaining unit 200 will be described.

When a plurality of 3W LEDs 130 installed in the body portion 100 is turned on, a temperature of a predetermined or more is formed inside the body portion 100.

At this time, the temperature sensor 210 installed inside the body part 100 detects the internal temperature of the body part 100.

The temperature sensor 210 transmits the temperature sensed by the control means 240.

The control means 240 compares the preset reference temperature with the sensed temperature.

When the sensed temperature is higher than the reference temperature, the control means 240 may operate the blower fan 230.

Therefore, the heat of the inside of the body portion 100 can be exhausted to the outside.

At this time, the control means 240 operates the blower fan 230 using the motor 231 until the internal temperature of the body portion 100 is equal to the reference temperature.

Therefore, the internal temperature of the body portion 100 can be maintained at a constant temperature.

On the other hand, the temperature maintaining unit 200 according to the present invention further includes a first opening and closing means 250 made of bimetal.

The first opening and closing means 250 closes the first opening 101 in which the blowing fan 230 is installed at the reference temperature, that is, at the second temperature, and the temperature higher than the reference temperature, that is, the first temperature is the body portion ( 100 is formed inside, serves to open the first opening 101.

Therefore, when the internal temperature of the body portion 100 is formed higher than the reference temperature, the first opening 101 is opened to expose the inside of the body portion 100 to the outside through the first opening 101. To lower the temperature inside the body portion 100.

Therefore, when the internal temperature of the body portion 100 is higher than the reference temperature, the first opening 101 and the second opening through the first opening and closing means 250 and the second opening and closing means 251. 102 can be opened simultaneously.

Accordingly, since the inside of the body portion 100 is exposed to the outside and the outside air from the outside can be introduced into the inside of the body portion 100, the internal temperature of the body portion 100 can be lowered to a predetermined temperature have.

The temperature maintaining part 200 according to the present invention operated as described above not only prevents the internal temperature of the body part 100 from rapidly increasing, but also prevents the printed circuit board 120 installed inside the body part 100. Including the 3W LEDs 130 and the electronic components can be prevented from being damaged by the high temperature.

On the other hand, the control means 240 is electrically connected to the power supply unit 140 for supplying power to the LEDs 130, the display unit 180 having a blue light bulb (B) and a red light bulb (R) and Can be electrically connected. In addition, the power supply unit 140 is electrically connected to the power measurement unit 170.

Therefore, the power measurement unit 170 may measure the power value applied to the LEDs 130 and transmit it to the control means 240.

The control means 240 determines whether the measured power value is within a preset reference power value range.

Subsequently, when the measured power value is out of the preset reference power value range, the control means 240 transmits an electrical signal to the display unit 180 to turn on the red light bulb R. Then, the operation of the power supply unit 140 is stopped. In this case, it may be determined that an abnormal state occurs in the LEDs 130.

On the other hand, when the measured power value is included in the preset reference power value range, the control means 240 transmits an electric signal to the display unit 180 to turn on the blue light bulb B. State, and the operation of the power supply unit 140 continues to operate. At this time, the LEDs 130 may be determined to operate normally.

Therefore, the power state supplied to the LEDs 130 may be determined through the ON state of the blue light bulb B or the red light bulb R of the display unit 180, and the abnormal state, for example, the LEDs 130 may be determined. When the supplied power value is out of the reference power value range, the power supply to the LEDs 130 may be cut off immediately.

In addition, the control means 240 may be further set to a high voltage reference level for a predetermined high voltage level. In this case, a yellow light bulb (not shown) may be further installed on the display unit 180.

Therefore, when the power value transmitted from the power measuring unit 170 reaches or exceeds the high voltage reference level, the control unit 240 may control the yellow light bulb to the on state. Accordingly, it may be determined that the power value supplied to the LEDs 130 reaches a high voltage level.

6 and 7, the control means as shown in FIG. 7 is located near the first opening 101, preferably in the side body portion 100 of the first opening 101. A push switch having internal contacts 330 and 340 electrically connected to 240 may be installed.

The push switch has a predetermined space formed therein, an opening 301 is formed at one side thereof, and a switch body 310 having a locking jaw 311 formed at an inner wall thereof, and protrudes through the opening 301. The pressing part 320 is disposed on the switch body 310 and is pressed by the external force and flows and the protrusion 321 is formed on the outer periphery of the protrusion near the opening 301, and the inside of the switch body 310. An elastic member 340 holding the bottom of the locking jaw 311 and the pressing part 320 and a first contact point 330 extending from the pressing part 320 by a predetermined length to pass the locking step 311. ) And a second contact point 340 provided at the locking step 311.

In addition, the first contact point 330 is electrically connected to the motor 231 of the blower fan 230, and the second contact point 340 is electrically connected to the control means 240.

Therefore, when the first opening and closing means 250 is in close contact with the outer surface of the body portion 100, the inner surface of the first opening and closing means 250 presses the end of the pressing portion 320, the pressing portion 320 ) Flows into the switch body 310. Therefore, the first point 330 extending a predetermined length from the pressing unit 320 is spaced apart from the second point 340.

Accordingly, when the pressing unit 320 is pressed as described above and the first contact point 330 and the second contact point 340 are spaced apart from each other, the motor 231 of the control means 240 and the blowing fan 230. Is electrically disconnected. Therefore, when the first opening and closing means 250 seals the first opening 101, the operation of the blower fan 230 may be immediately stopped.

1 and 4, the control means 240 is electrically connected to the alarm generator 190.

Accordingly, the control means 240 may generate an alarm by transmitting an electrical signal to the alarm generator 190 when the temperature received from the temperature sensor 210 reaches the first temperature.

Here, the above-mentioned LEDs 130, the power supply unit 140, the display unit 180, the alarm generating unit 190 and the power measuring unit 170 is equally applied to the lighting device shown in FIG. The city numbers are the LEDs 130 ', the power supply unit 140', the display unit 180 ', the alarm generating unit 190' and the power measurement unit 170 '.

And, the body portion 100 'of the lighting apparatus shown in Figure 2 is made of aluminum die casting, the rear of the body portion 100' of the plurality of LEDs 130 'in the body portion 100' A plurality of heat radiation fins (not shown) are formed to cool the heat generated from the light emission. In addition, the LEDs 130 ′ shown in FIG. 2 include a lens 131 ′ having a light diffusing function having a curved surface. And, the outer surface of the body portion is coated with a polyester powder.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, The present invention may employ various changes, modifications, and equivalents. It is clear that the present invention can be applied in the same manner by appropriately modifying the above embodiments. Accordingly, the above description does not limit the scope of the invention as defined by the limitations of the following claims.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but it will be apparent to those skilled in the art that various modifications are possible without departing from the scope of the present invention.

1 is a perspective view showing an example of a lighting device having a temperature maintaining part of the present invention.

2 is a perspective view showing another example of a lighting device having a temperature holding part of the present invention.

3 is a perspective view illustrating an arrangement state of the first opening and closing means and the second opening and closing means provided in the body of FIG. 2.

Figure 4 is a block diagram showing the operation of the temperature holding unit according to the present invention.

5 is a cross-sectional view taken along the line II ′ shown in FIG. 1.

6 is a view showing the operation of the blower fan and the first opening and closing means according to the present invention.

7 is a partial cross-sectional view showing that the push switch is installed in the body portion according to the present invention.

** Description of symbols for the main parts of the drawing **

100, 100 ': Body part

101: first opening

102: second opening

110.110 ': Cover

130, 130 ': LEDs

140, 140 ': power supply

170, 170 ': power measuring unit

180, 180 ': display unit

190, 190 ': Alarm generating part

200: temperature holding unit

210: temperature sensor

230: blower fan

231: motor

240: control means

250: first opening and closing means

251: second opening and closing means

Claims (7)

The body is disposed on the printed circuit board and the printed circuit board at regular intervals, and the LEDs are turned on by receiving power from the outside. part; And Is installed in the body portion, and includes a temperature maintaining unit for maintaining the internal temperature of the body portion at a predetermined temperature, The temperature maintaining part includes first opening and closing means for fixing one end to the outer surface of the body portion outside the first opening, and second opening and closing means for fixing one end to the outer surface of the body portion of each of the second openings. , The first opening and closing means and the second opening and closing means is made of a bimetal that is restored to its original state when the internal temperature is higher and the thermal expansion coefficient is larger and the outer side and the temperature is lowered again, The first opening and closing means bends to expose the first opening to the outside when the first opening is higher than the reference temperature, and returns to the original state so that the first opening is cut off from the outside when the second opening is substantially the same as the reference temperature. , The second opening and closing means are bent to expose the second openings to the outside when the first temperature is reached, and the inside of the body portion is circulated with the outside, and when the second temperature is reached, the second openings are cut off from the outside. Returning to the lighting device having a temperature holding portion, characterized in that for blocking the inside of the body portion from the outside. The method of claim 1, The temperature maintaining part is installed inside the body to detect a temperature inside the temperature sensor, a blowing fan installed in the first opening, and electrically connected to the temperature sensor and the blowing fan, and a reference temperature is set. Control means, first opening / closing means of which one end is fixed to the outer surface of the body portion outside the first opening, and second opening / closing means of which one end is fixed to the outer surface of the body portion of each of the second openings. , The control means receives a temperature sensed from the inside from the temperature sensor, the lighting device having a temperature holding unit, characterized in that for driving the blowing fan so that the received temperature is equal to the reference temperature. The body is disposed on the printed circuit board and the printed circuit board at regular intervals, and the LEDs are turned on by receiving power from the outside. part; And Is installed in the body portion, and includes a temperature maintaining unit for maintaining the internal temperature of the body portion at a predetermined temperature, The temperature maintaining part is installed inside the body to detect a temperature inside the temperature sensor, a blowing fan installed in the first opening, and electrically connected to the temperature sensor and the blowing fan, and a reference temperature is set. Control means, first opening / closing means of which one end is fixed to the outer surface of the body portion outside the first opening, and second opening / closing means of which one end is fixed to the outer surface of the body portion of each of the second openings. , The control means receives the temperature sensed therein from the temperature sensor, and drives the blower fan so that the received temperature is equal to the reference temperature, The first opening and closing means and the second opening and closing means is made of a bimetal having the property of bending to the outside according to the internal temperature, The first opening and closing means is bent to expose the first opening to the outside when the first temperature is higher than the reference temperature and the blower fan is operated by receiving an electrical signal from the control means, and substantially with the reference temperature When the same second temperature is returned to the original state to block the first opening from the outside and the blower fan is stopped by receiving an electrical signal from the control means, The second opening and closing means are bent to expose the second openings to the outside when the first temperature is reached, and the inside of the body portion is circulated with the outside, and when the second temperature is reached, the second openings are cut off from the outside. Returning to the lighting device having a temperature holding portion, characterized in that for blocking the inside of the body portion from the outside. The method of claim 3, wherein The body portion is provided with a cover on the upper portion so that the light emitted by the lighting of the LEDs installed on the bottom of the body portion to the outside, The inner space of the body portion is formed to be sequentially widened along the upper side in which the cover is disposed at the bottom, The inner side surface of the body portion is a lighting device having a temperature holding portion, characterized in that formed in the bottom step along the top. The method of claim 3, wherein The control means is electrically connected to a power supply unit for supplying power to the LEDs, and electrically connected to a display unit having a blue light bulb and a red light bulb, The power supply unit is electrically connected to a power measurement unit, the power measurement unit measures the power value applied to the LEDs and transmits it to the control means, The control means determines whether the measured power value is within a preset reference power value range, and when the measured power value is out of the preset reference power value range, an electric signal to the display unit. Transmits to turn on the red light bulb and stops the power supply, and when the measured power value is within the preset reference power value range, maintains the power supply to the display unit. Lighting device having a temperature maintaining portion, characterized in that for transmitting the electrical signal to turn on the blue light bulb. The method of claim 3, wherein The body part of the first opening is provided with a push switch having an internal contact electrically connected to the control means, The push switch is formed in a predetermined space therein and the opening is formed on one side and the locking jaw is formed on the inner wall, the switch body is disposed on the switch body so as to protrude through the opening and is pressed by the external force flow and the outer periphery A pressing portion formed with a protrusion caught near the opening, an elastic member holding the locking jaw and the bottom of the pressing portion inside the switch body, and a first contact extending a predetermined length from the pressing portion so as to pass the locking jaw. And a second contact point provided at the locking jaw, The first contact is electrically connected to the blower fan, the second contact is electrically connected to the control means, When the first opening and closing means is in close contact with the outer surface of the body portion and the pressing portion is pressed and the first contact point and the second contact point are spaced apart from each other, And the control means and the blower fan are electrically disconnected. The method according to any one of claims 3 to 6, The control means is electrically connected to the alarm generator, The control means is a lighting device having a temperature holding unit, characterized in that for generating an alarm by transmitting an electrical signal to the alarm generating unit when the received temperature reaches the first temperature.

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