KR101351710B1 - Light emitting diode lamp - Google Patents

Abstract

Provided is a device for preventing expansion of cooling oil in a water-cooled light emitting diode (LED) lamp, which is capable of preventing leakage of the cooling oil due to volume expansion during cooling of LEDs. The device for preventing expansion of cooling oil in a water-cooled LED lamp comprises: a socket unit electrically connected to a connector that is a power supply source; a lamp unit disposed below the socket unit, across a heat radiation cap from the socket unit and having a space inside thereof; an LED disposed in the space of the lamp unit and turned on by receiving a current supplied from the socket unit; and cooling oil filling the space of the lamp unit to cool heat emitted from the LED, wherein a volume expansion absorption unit is provided at an upper part of the lamp unit to absorb pressure resulting from volume expansion of the cooling oil.

Description

Light Emitting Diode Lamp for Water Cooling LED Lighting Fixtures

The present invention relates to a cooling oil expansion preventing mechanism of a water-cooled light emitting diode lighting device, and more particularly, to the cooling oil of the water-cooled light emitting diode lighting device to prevent leakage caused by the volume expansion of the cooling oil generated in the process of cooling the light emitting diode. An expansion prevention mechanism.

In general, lighting devices convert electric energy into light energy, so that they can be identified even in dark places, and recently, they are also widely used to produce interior decoration or a cozy atmosphere. Such a lighting apparatus is manufactured in various forms, and conventionally, a lighting apparatus using an incandescent lamp or a fluorescent lamp has been mainly used.

Although incandescent lamps are inexpensive to manufacture, the use of electric energy in converting energy into light energy has led to a lot of heat. Recently, fluorescent lamps have a higher energy conversion efficiency than incandescent lamps, There is a short life span.

Meanwhile, in recent years, a lighting apparatus using a light emitting diode (LED) has been developed and used.

The light emitting diode has advantages such as a high processing speed and low power consumption, and is environmentally friendly, and has a high energy saving effect, and is being regarded as a next generation strategic product. In addition, a lighting apparatus using a light emitting diode has been attracting attention as a lighting apparatus because it has a low power consumption of about 10 to 15%, a semi-permanent lifetime of 100,000 hours or more, and environment-friendly characteristics compared with conventional incandescent lamps or fluorescent lamps.

However, the heat generated from the light emitting diodes generates much more heat than incandescent and fluorescent lamps. Therefore, a heat sink is essentially installed as a means for dissipating such heat in lighting fixtures using light emitting diodes. There is a problem in that it is insufficient to effectively dissipate heat emitted from the light emitting diodes.

On the other hand, the prior art for solving the above problems is the Republic of Korea Patent Application Publication No. 10-2010-0041367 (name: indirect water-cooled light-emitting diode lighting fixture).

The prior art includes a water jacket in which a predetermined amount of coolant is stored, an insulating cover plate covered on an upper surface of the water jacket, a printed circuit board installed on an upper surface of the insulating cover plate, and a light emitting diode installed in the printed circuit board. In the indirect water-cooled light emitting diode lighting device configured, one end is attached to the bottom surface of the insulating cover plate in the inner space of the water jacket in which the cooling water is stored, and the other end of the light emitting diode is installed on the bottom surface of the water jacket. A heat conduction pipe for conducting cooling heat by conducting the heat discharged to the cooling water is further included, and the circumferential surface of the heat conduction pipe has a through hole for introducing the coolant into the inside of the heat conduction pipe. have.

However, in the case of the prior art, the volume of the cooling water inevitably expands in the process of cooling the heat emitted from the light emitting diode, and there is no means for absorbing the volume expansion at this time, so that it does not endure the expansion pressure. There was a problem such as cooling water leaks.

Prior art literature

Document 1: Korean Patent Office Publication No. 10-2010-0041367

Accordingly, an object of the present invention for solving the above problems is to provide a cooling oil expansion preventing mechanism of the water-cooled light emitting diode lighting device to prevent the leakage of oil caused by the volume expansion of the cooling oil generated in the process of cooling the light emitting diode. have.

The present invention for achieving the above object is a socket for electrically coupling with a connector that is a power supply source, a lamp unit having a heat dissipation cap disposed under the socket portion and having a space therein, and a space of the lamp unit Preventing the expansion of the cooling oil of the water-cooled light-emitting LED lighting device comprising a LED which is located in and is applied to the light supplied by the current supplied from the socket portion and the cooling portion filled in the space of the lamp portion and cooling the heat emitted from the LED In the device, the upper end of the lamp unit is characterized in that the leakage preventing plug is provided with a volume expansion absorbing means for absorbing the pressure due to the volume expansion of the cooling oil.

The leakage preventing stopper is preferably configured as a main body having a space therein.

The leakage preventing stopper is preferably composed of a spring installed between the upper body, the lower body, and the upper body and the lower body.

The leakage preventing stopper is preferably composed of a main body having a hole through the center and an expansion tube fitted into the hole of the main body.

The leakage preventing stopper is preferably composed of a main body in which a space is recessed in a state where the bottom surface is opened, and an elastic ball fitted into the space of the main body.

The leakage preventing stopper is preferably composed of a main body and a stretch pad made of a soft material attached to the bottom of the main body and having elasticity.

The leakage preventing stopper is preferably constituted by a main body having a hole penetrated through the center, and a pressure discharge valve fitted into the hole of the main body.

In another aspect, the present invention is a socket for electrically coupling with a connector that is a power supply source, a lamp unit having a heat dissipation cap interposed therebetween and having a space therein, and a lamp unit formed in a space of the lamp unit. In the cooling oil expansion prevention mechanism of the water-cooled light-emitting LED lighting device comprising a LED that is applied to the current supplied from the light and the LED is turned on and the cooling portion is filled in the space of the lamp unit and cools the heat emitted from the LED. Forming a pleat continuously on the upper circumferential surface of the portion characterized in that configured to expand the pleat by the expansion pressure of the cooling oil.

The wrinkle portion is preferably formed by forming in one of the vertical or horizontal direction on the upper peripheral surface of the lamp unit.

When the volume expansion of the cooling oil by the heat generated from the light emitting diode occurs in the process of using a water-cooled light emitting diode lighting device, by incorporating a volume expansion absorbing means for creating a space for absorbing the cooling oil volume expansion at this time It can not withstand the pressure caused by volume expansion and prevent the cooling oil from leaking to the outside of the luminaire, thereby improving the merchandise and extending the service life of the product.

1 is a view showing the configuration of a water-cooled LED lighting device according to a preferred embodiment of the present invention.
Fig. 2 is a sectional view of Fig. 1; Fig.
Figure 3 is a view showing a first embodiment of the volume expansion absorbing means installed in the leakage preventing stopper.
4 is a use state diagram of Fig.
Figure 5 is a view showing a second embodiment of the volume expansion absorbing means installed in the leakage preventing stopper.
6 is a use state diagram of Fig.
Figure 7 is a view showing a third embodiment of the volume expansion absorbing means installed in the leakage preventing stopper.
8 is a state diagram used in FIG.
Figure 9 is a view showing a fourth embodiment of the volume expansion absorbing means installed on the leakage preventing stopper.
10 is a state diagram used in FIG.
Figure 11 is a view showing a fifth embodiment of the volume expansion absorbing means installed in the leakage preventing stopper.
12 is a state diagram used in FIG.
Figure 13 is a view showing a sixth embodiment of the volume expansion absorbing means installed in the leakage preventing stopper.
14 is a state diagram used in FIG.
FIG. 15 shows an example in which the volume expansion absorbing means is incorporated into a lamp unit; FIG.
16 is a use state diagram of FIG.
17 is a view showing another example in which the volume expansion absorbing means is incorporated into the lamp unit.
18 is a state diagram used in FIG.

In the present invention, when the volume expansion of the cooling oil by the heat generated from the light emitting diode in the process of using the water-cooled light emitting diode lighting fixture, by incorporating the volume expansion absorbing means for creating a space for absorbing the cooling oil volume expansion at this time The present invention aims to implement a cooling oil expansion preventing mechanism of a water-cooled light emitting diode lighting fixture that does not endure pressure due to volume expansion and prevents cooling oil from leaking to the outside of the lighting fixture.

Hereinafter, eight embodiments of the light emitting diode lighting device according to the present invention will be described. However, the embodiments to be described below will describe the best embodiments for achieving the features and technical spirit of the present invention. However, the present invention is not limited by the following examples.

1 is a view showing the configuration of a water-cooled LED lighting device according to a preferred embodiment of the present invention, Figure 2 is a view showing a cross section of FIG.

As shown in Figure 1 and 2, the water-cooled LED lighting device of the present invention has an empty space 210 is formed inside and the upper end is configured by the lamp unit 200 configured to open the appearance. The lamp unit 200 preferably uses a container having transparency to allow light to pass therethrough, and preferably uses acrylic as its material.

The end of the lamp unit 200 is provided with a socket 500, the socket 500 is fastened to a connector (not shown) which is an electrical connection mechanism to receive the current applied from the connector.

The heat dissipation cap 400 is inserted between the lamp unit 200 and the socket part 500. The heat dissipation cap 400 is in contact with the outside air and heat-exchanges the cooling oil 600 filled in the lamp unit 200 to release the heat of the cooling oil 600 to the outside.

The internal space 210 of the lamp unit 200 includes a printed circuit board 310 mounted with a light emitting diode (LED) (hereinafter referred to as "LED") 300 as a light emitting means. The printed circuit board 310 in which the LEDs 300 are installed is connected to each other by a connection lead to maintain a state in which the LED 300 is installed. The connecting wire is preferably made of a material having high electrical conductivity.

The connecting wire connecting the LED 300 is connected to the socket part 500 to receive the current supplied to the socket part 500 to supply the LED 300.

The cooling oil 600 is filled in the internal space of the lamp unit 200 in which the LED 300 is installed. The cooling oil 600 cools the heat emitted from the LED 300 as the light emitting means.

An open top of the lamp unit 200 is fitted with a leakage preventing stopper 10. The leakage preventing stopper 10 is airtightly treated so that the cooling oil 600 filled in the internal space 210 of the lamp unit 200 does not leak between the lamp unit 200 and the heat dissipation cap 400.

On the other hand, the leakage preventing stopper 10 is provided with a volume expansion absorbing means. The volume expansion absorbing means is a cooling oil 600 for cooling the heat of the LED 300 in the state filled in the internal space 210 of the lamp unit 200 is heated and the expansion pressure at this time, when the volume is expanded By absorbing the cooling oil 600 is a means that is provided for the purpose of blocking the leakage of the leakage leaked into the gap between the lamp unit 200 and the leakage preventing plug 10.

Hereinafter, six embodiments of the volume expansion absorbing means installed in the leakage preventing stopper 10 will be described.

{Example 1}

3 is a view illustrating a first embodiment of a volume expansion absorbing means installed in a leakage preventing stopper.

As shown in FIG. 3, the anti-yu plug 10a of the first embodiment is formed by forming a main body 12 using a material having elasticity in a cylindrical shape, and forming a space 14 inside the main body 12. It is characterized by.

The leakage preventing stopper 10a is a cooling oil 600 that cools the heat of the LED 300 in a state filled in the internal space 210 of the lamp unit 200 when the volume is expanded, the expansion at this time When pressure is transmitted to the bottom surface of the main body 12, the main body 12 contracts through the space 14 formed inside the main body 12 to provide a space equal to the expanded volume of the cooling oil 600. By absorbing the expansion pressure it is possible to prevent leakage of the cooling oil (600).

{Example 2}

5 is a view illustrating a second embodiment of the volume expansion absorbing means installed in the leakage preventing stopper.

As shown in FIG. 5, a stopper 10b for preventing leakage is formed of a material having elasticity in the form of a cylindrical body, the lower body 22 and 24 and a spring installed between the upper and lower body 22 and 24 ( 26) including.

Leakage preventing stopper (10b) of the above configuration is that when the expansion pressure of the cooling oil 600 is transmitted to the lower body 24, as shown in Figure 6 the lower body 24 is raised up and at the same time the spring 26 is elastic It is possible to prevent the leakage of the cooling oil 600 by absorbing the expansion pressure of the cooling oil by providing a space as the expanded volume of the cooling oil 600 to support.

{Example 3}

7 is a view showing a third embodiment of the volume expansion absorbing means installed in the leakage preventing stopper.

As shown in FIG. 7, the leakage preventing stopper 10c of the third embodiment is formed in a cylindrical shape by using a material having elasticity, and punctures a hole 34 in the center of the main body 32. And the expansion tube 36 is inserted into the hole 34.

The leakage preventing stopper 10c having the above-described configuration is inserted into the hole 34 of the main body 32 as shown in FIG. 8 when the expansion pressure of the cooling oil 600 is transmitted to the bottom surface of the main body 32 as shown in FIG. 8. The expansion tube 36 is swollen and absorbs the expansion pressure, thereby preventing leakage of the cooling oil 600.

{Example 4}

9 is a view illustrating a fourth embodiment of the volume expansion absorbing means installed in the leakage preventing stopper.

As shown in Figure 9, the leakage preventing stopper 10d of the fourth embodiment is composed of a main body 42 formed using a material having elasticity in the form of a cylinder, the bottom surface of the main body 42 is opened 46 The space 44 is recessed in the state, and the elastic ball 48 is inserted into the space 44.

The leakage preventing stopper 10d having the above-described configuration has an elastic ball as shown in FIG. 8 when the expansion pressure of the cooling oil 600 is transmitted to the elastic ball 48 inserted into the bottom space 44 of the main body 42. 48 is contracted to absorb the expansion pressure it is possible to prevent the leakage of the cooling oil (600).

{Example 5}

11 is a view showing a fifth embodiment of the volume expansion absorbing means installed in the leakage preventing stopper.

As shown in FIG. 11, the leakage preventing stopper 10e of the fifth embodiment is attached to a main body 52 and a bottom surface of the main body 52 which are formed by using a material having elasticity in a cylindrical shape. It is constructed by attaching a stretch pad 54 made of material.

The leakage preventing stopper 10e having the above-described configuration, when the expansion pressure of the cooling oil 600 is transmitted to the expansion pad 54, as shown in FIG. 12, the expansion pad 54 contracts and the expanded volume of the cooling oil 600. By providing a space as much as possible to absorb the expansion pressure of the cooling oil 600 it is possible to prevent the leakage of the cooling oil (600).

{Example 6}

13 is a view showing a sixth embodiment of the volume expansion absorbing means installed in the leakage preventing stopper.

As shown in FIG. 13, the leakage preventing stopper 10f of the sixth embodiment is formed in a cylindrical shape using a material having elasticity, but having a hole 64 in the center of the main body 62. And a pressure relief valve 66 fitted into the hole 64.

The leakage preventing stopper 10f having the above-described configuration is inserted into the hole 64 of the main body 62 as shown in FIG. 8 when the expansion pressure of the cooling oil 600 is transmitted to the bottom surface of the main body 62 as shown in FIG. By discharging to the outside through the pressure discharge valve 66 which is present, it is possible to prevent the leakage of the cooling oil 600 by reducing the expansion pressure. At this time, the pressure discharge valve 66 is preferably designed to discharge only the air according to the expansion pressure and not to discharge the cooling liquid.

{Example 7}

On the other hand, Figure 15 is a view showing an example in which the volume expansion absorbing means is incorporated into the lamp unit.

As shown in FIG. 15, in the seventh embodiment, when the fold portion 220 of the vertical shape is continuously formed on the upper circumferential surface of the lamp unit 200, the expansion pressure of the cooling oil 600 develops in FIG. 16. As described above, the wrinkles 220 are spread and the inner space 210 of the lamp unit 200 is expanded to absorb the expansion pressure of the cooling oil 600, thereby preventing leakage of the cooling oil 600. At this time, the lamp unit 200 is preferably molded of a material having a shrinkage and resilience, for example, a heat radiation PC so that the unfolding and folding of the wrinkle portion 220 is free.

{Example 8}

On the other hand, Figure 17 is a view showing another embodiment in which the volume expansion absorbing means is grafted to the lamp unit.

As shown in FIG. 17, in the eighth embodiment, when the pleated portion 230 having a horizontal shape is continuously formed on the upper circumferential surface of the lamp unit 200, the expansion pressure of the cooling oil 600 is developed in FIG. 18. As described above, the wrinkles 230 are expanded to expand the internal space 210 of the lamp unit 200, thereby absorbing the expansion pressure of the cooling oil 600, thereby preventing leakage of the cooling oil 600. At this time, the lamp unit 200 is preferably molded of a material having a shrinkage and resilience, for example, a heat radiation PC so that the unfolding and folding of the wrinkle portion 230 is free.

10, 10a, 10b, 10c, 10e, 10f: oil leakage stopper
200: lamp unit 210: cooling oil
300: LED 400: heat dissipation cap
500: socket portion

Claims (9)

A socket portion electrically coupled to a connector, which is a power supply source, a lamp portion having a heat dissipation cap disposed under the socket portion, and having a space portion therein, and a current portion provided at the space portion of the lamp portion and supplied from the socket portion. In the cooling light expansion preventing mechanism of the water-cooled light-emitting LED lighting device comprising a LED that is applied to light up and filled in the space of the lamp unit and the cooling oil for cooling the heat emitted from the LED,
Cooling oil expansion prevention mechanism of the water-cooled LED lighting device, characterized in that the upper end of the lamp unit is fitted with a leakage preventing stopper having a volume expansion absorbing means for absorbing the pressure according to the volume expansion of the cooling oil.
The method of claim 1,
The leakage preventing stopper is;
Cooling oil expansion preventing mechanism of the water-cooled LED lighting device, characterized in that the main body having a space therein.
The method of claim 1,
The leakage preventing stopper is;
Upper and lower bodies;
Cooling oil expansion preventing mechanism of the water-cooled LED lighting device, characterized in that consisting of a spring installed between the upper body, the lower body.
The method of claim 1,
The leakage preventing stopper is;
A main body having a hole through the center;
Cooling oil expansion preventing mechanism of the water-cooled light emitting diode lighting device, characterized in that consisting of an expansion tube inserted into the hole of the main body.
The method of claim 1,
The leakage preventing stopper is;
A main body having a bottom recessed in the open state;
Cooling oil expansion preventing mechanism of the water-cooled light emitting diode lighting device, characterized in that consisting of a flexible ball fitted into the space of the main body.
The method of claim 1,
The leakage preventing stopper is;
A body;
Cooling oil expansion preventing mechanism of the water-cooled LED lighting device, characterized in that the flexible pad is attached to the bottom of the main body having a stretchable soft material.
The method of claim 1,
The leakage preventing stopper is;
A main body having a hole through the center;
Cooling oil expansion preventing mechanism of the water-cooled light emitting diode lighting device, characterized in that it comprises a pressure discharge valve fitted into the hole of the main body.
A socket portion electrically coupled to a connector, which is a power supply source, a lamp portion having a heat dissipation cap disposed under the socket portion, and having a space portion therein, and a current portion provided at the space portion of the lamp portion and supplied from the socket portion. In the cooling light expansion preventing mechanism of the water-cooled light-emitting LED lighting device comprising a LED that is applied to light up and filled in the space of the lamp unit and the cooling oil for cooling the heat emitted from the LED,
Cooling oil expansion prevention mechanism of the water-cooled LED lighting device, characterized in that the pleated portion is continuously formed on the upper circumferential surface of the lamp unit so that the pleated portion is expanded by the expansion pressure of the cooling oil.
The method of claim 8,
The wrinkle portion is a cooling oil expansion preventing mechanism of the water-cooled LED lighting device, characterized in that formed in one of the vertical or horizontal direction on the upper peripheral surface of the lamp unit.

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