KR20090107890A - Electric lamp with cooling system - Google Patents

Abstract

PURPOSE: An electric lamp with a cooling device is provided to improve cooling efficiency by delivering a heat generated in a light source and a power supply unit to a heat sink through a heat pipe. CONSTITUTION: An electric lamp with a cooling device includes a supporting member(10), a tube-shaped connecting member(20), a lighting member(30), and a heat delivery member(50). The supporting member comprises a base(11) and a tube-shaped supporting bar(12). The tube-shaped supporting bar is installed in a top surface of the base. The tube-shaped connecting member is coupled in a top end part of the supporting bar, and is extended to outside. The lighting member comprises a case(31) and a light source(33). The case is coupled in an outer end part of the connecting member. The light source is coupled inside the case. The heat delivery member comprises a top heat sink(51) and a heat pipe(52).

Description

Lamp with cooling system {Electric lamp with cooling system}

The present invention relates to an illumination lamp combined with a cooling means using a heat pipe for cooling a light source that generates a lot of heat, and more particularly, a light source that generates a lot of heat in a lit state such as a light source, in particular, a power LED. The cooling device is provided with a cooling means using a heat pipe to prevent overheating of the light source, and to additionally perform functions such as humidification and fragrance emission by using heat recovered from the light source as necessary. It is about a lighting fixture.

The greatest discovery in human life was fire, and as it became possible to illuminate the living space as a fire, it was no longer restricted by the activity time and the scope of activity, and with it, human civilization began in earnest.

In other words, the lighting by fire to illuminate the living space can be called the beginning of civilization, so one of the most needed industrial products in today's daily life is the lighting that illuminates the interior and exterior. I can't imagine modern life without lights that illuminate the interior and exterior.

Such lighting was started from natural fires that were found by chance in nature, and then fires caused by the combustion of oil, candles, and gas were used as the first light sources for lighting. Has begun lighting, and since then, various light bulbs, including sodium discharge lamps, fluorescent lamps, have been developed.

However, since the light source used in the conventional lighting has a relatively high power consumption, an LED (Light Emitting Diode, LED) has been developed as a new type of light source that can significantly reduce power consumption.

LED is made of PN junction structure using semiconductor and emits energy when recombination of electrons and holes injected into semiconductor is light. Unlike most conventional light sources such as fluorescent lamp and incandescent lamp, Because it emits light that does not contain infrared light, it is suitable for illumination of UV-sensitive cultural assets and works of art.

In addition, the response speed to the input voltage is fast and the maximum brightness can be obtained immediately after turning on, and the power consumption is very small and the service life is long.

However, in spite of the above advantages, the LED is limited to a display board, an electronic product, and the like, and thus it is difficult to use the LED as a light source such as a street lamp because the brightness is low.

Therefore, a high brightness power LED has been developed that solves the problem of the low brightness of the conventional low brightness LED as described above, and the power LED is sufficiently high as a lamp because the brightness is very high compared to the conventional general LED. Can be used.

However, since the power LED is supplied with low voltage and high current, not only the power LED itself, but also a lot of heat is generated in the resistor and regulator of the power supply for supplying electricity stably.

That is, since the power LED generates a great amount of heat in the lit state, it not only promotes deterioration of the peripheral portion to which the power LED is coupled, shortens the life of the power LED itself, but also melts the soldering portion for fixing the power LED. In some cases, the fixing part may be detached from the fixing part, and in order to solve various problems caused by heat generation, a cooling means using a power LED as a light source is generally provided.

However, the cooling means provided in a conventional lamp using a power LED is an air-cooled metal radiator provided with a plurality of fins, and the air-cooled metal radiator has insufficient cooling effect, so that the temperature of the power LED is properly maintained. It is difficult to do so, and as a result, the conventional problem caused by excessive heat dissipated in the power LED cannot be completely solved.

In order to solve the drawbacks of the air-cooled cooling as described above, a water-cooled power LED having a much higher cooling capacity than the air-cooled was developed. Korean Patent Publication No. 2007-97004 discloses a "cooling device such as a lamp with a built-in power LED" have.

The apparatus includes a cooling water circulation path inside a fixture to which the power LED is fixedly coupled, and alternately circulates the cooling water of the cooling water container according to the temperature of the cooling water in a state where the pair of cooling water compartment and the cooling water circulation pump are separated from the fixture. The LED can be cooled effectively.

In addition, a heat sink for air cooling is provided on the outer surface of the semi-circular enclosure in which the power LED is installed, and the cooling water of the cooling water box is cooled by air, and the heat radiated from the power LED to the enclosure is cooled, thereby further increasing the cooling efficiency.

However, the structure is complicated because the coolant box and the coolant circulation pump are installed in pairs, and the coolant circulation pipe and the coolant circulation path in the fixture are required to circulate the coolant.

In addition, the heat generated from the power LED is not properly utilized, but simply removed, which is undesirable in terms of effective use of energy.

The present invention was devised to solve various problems caused by heat generation, such as a lamp using a light source that generates a lot of heat, such as a power LED in a lit state, and a light source and electricity generating a large amount of heat using a heat pipe. The purpose of the present invention is to provide a lamp that can efficiently cool the feeder and, if necessary, additionally perform functions such as humidification or fragrance emission using heat recovered during the cooling process.

The above object of the present invention is achieved by a heat pipe for quickly transferring heat generated from a light source, and a heat sink for quickly dissipating heat transferred by the heat pipe and the heat transfer conductor to the outside.

In the lighting lamp having the cooling device of the present invention, since the heat generated from each of the light source and the electric supply is quickly transferred to the heat sink by the heat pipe, the cooling efficiency is improved.

And, if necessary, by combining the cooling water storage member is filled with the cooling water heated as heat of the heat sink, there is an advantage that can serve as a heated humidifier.

In addition, when the cooling water storage member is combined, aroma oil is added to the cooling water to evaporate, thereby obtaining various therapeutic effects such as skin beauty, emotional stability, and improving blood circulation, and purifying indoor air. And, when lighting is not required, there is an advantage that can be used only for the purpose of emitting a humidifier or aroma of aroma.

The present invention is provided with a cooling device that uses a heat pipe when cooling the electric supply for supplying electricity to the light source and the light source as a heat source in a lighting lamp that uses a light source that generates a lot of heat in the state of lighting such as a power LED. It is about a lighting.

The lighting lamp equipped with the cooling device of the present invention for a lighting lamp that generates a lot of heat from the light source and the electricity supplier when lighting as described above,

A support member placed on the floor; An illumination member for illumination; A connection member connecting the support member and the lighting member; A cooling water storage member for filling the cooling water; A heat transfer member for transferring heat generated from the light source and the electric supply to the cooling water and simultaneously dissipating to the outside; It consists of, etc. Looking at each as follows.

The supporting member serves to erect the lighting member on the floor. The supporting member has a bar support structure on the upper surface of the base to be placed on the floor. The supporting member has an inner space, and the support member has two front end surfaces through the inside as a tubular body. It has a hollow penetrating the inner space of the base and the hollow of the support is in communication with each other.

And the inner space of the base is equipped with an electric supply for supplying electricity to the light source of the lighting member, the electric supply is provided with a heat sink made of a metal material having a plurality of heat radiation fins (fin), such as a heat sink. The heat generated by the electricity supply is quickly collected and dissipated.

The connecting member serves to connect the lighting member and the support, and has a tubular structure having a hollow, so that the inner space of the case of the lighting member is connected to the hollow of the support through the hollow of the connecting member. A flexible structure, that is, a flexible pipe type structure, while having a supporting force to freely adjust the position of is preferable.

The lighting member is coupled to the other end of the connection member extending toward the side in the state in which the one end of the support is connected, and serves to irradiate light where light is needed, and the light source inside the case of the downward open type. Is combined.

In addition, when an LED, particularly a power LED, is used as the light source, it is also preferable to couple a light transmitting body for dispersing and scattering the light of the LED to the lower end of the case.

The cooling water storage member is an upward open tank for filling the cooling water for cooling the heat generated from the light source and the electric supply. When the aroma oil is added to the cooling water filled in the cooling water storage member, the cooling water is heated to obtain an aroma divergence effect. have.

The heat transfer member includes an upper heat sink coupled to a hollow upper end and a lower part of the support, a heat pipe connected at both ends to an upper heat sink and a light source, and both ends connected to an upper heat sink and a heat sink of an electric supply. It consists of a linear heat transfer conductor, and a lower heat sink connected to the cooling water storage member and the heat transfer conductor through the support.

That is, the heat generated from the light source is transferred to the upper heat sink through the heat pipe, and then emitted to the outside, and the heat generated from the electric supply is transferred to the coolant filled in the coolant storage member through the heat sink, the heat transfer conductor, and the lower heat sink.

At this time, the heat generated from the electricity supplier is transferred together through the inner space of the heat transfer conductor and the support, and a part of the heat generated from the electricity supply is transferred to the upper heat sink.

In the lighting device having the cooling device of the present invention configured as described above, heat generated from a light source and an electric supply is collected in a heat sink through a heat pipe and a heat transfer conductor, a part of the collected heat is dissipated to the outside and the rest is stored in cooling water. The cooling water filled in the member is heated and evaporated.

Details of the effects and the resulting effects, including the object and technical configuration of the present invention will be clearly understood by the following description with reference to the drawings showing a preferred embodiment of the present invention.

1 is a perspective view of a lamp having a cooling apparatus according to an embodiment of the present invention.

As shown, the lamp equipped with the cooling device of the present invention,

A base 11 on a housing having a heat sink 11A and a built-in electric supply 11B connected to an external power source, standing on the upper surface of the base 11, and communicating with an internal space R1 of the base 11. Support member (10) consisting of a tubular support (12) having a hollow (H1) to be;

The tubular connection member 20 having a hollow H2 extending from one side end toward the outer side in the state where one end is coupled to the upper end of the support 12 and communicating with the hollow H1 of the support 12. Wow;

A downwardly open case 31 coupled to the other end of the connection member 20 and having an internal space R2 communicating with the hollow H2 of the connection member 20, and light coupled to a lower end of the case 31. An illumination member 30 composed of a transmissive body 32 and a light source 33 coupled to the case 31 on the light transmitting body 32 and connected to the electricity supply 11B;

A coolant storage member 40 coupled to an upper surface of the base 11 and filled with coolant W;

The upper heatsink 51 coupled to the upper end of the hollow H1 of the support 12 and the hollow heat H2 of the connecting member 20 are both ends of the upper heatsink 51 and the light source 33. Heat pipes 52 respectively coupled to the heat pipes 52, and linear heat conductors 53 of which both ends are coupled to the upper heat sink 51 and the heat sink 11A, respectively, through the hollow H1 of the support 12; A heat transfer member 50 having a lower heat sink 54 connected to one side of the support 12 and having both ends connected to the heat conductor 53 and the coolant storage member 40; And the like.

In the drawings, reference numerals "L", "P", and "S" are "lens", "fixing pin", and "operation switch", respectively. For convenience, the wiring relationship is omitted in the drawings.

In order to quickly transfer the heat generated from the light source 33 of the present invention such as the illumination lamp to the upper heat sink 51, the upper surface of the light source 33, such as aluminum or copper tube of a metal material having a large heat transfer coefficient After the plate-shaped collector 55 is tightly coupled, the heat pipe 52 may be inserted into the collector 55.

That is, when the power LED is used as the light source 33, the light source 33 is composed of an LED element 33A and a metal PCB (33B, metal PCB), the upper surface of the metal PC (33B) as the heat collector 55 By covering all of them, the heat of the metal PC 33B can be absorbed efficiently and quickly.

In addition, a plurality of heat dissipation fins are provided on an outer surface of the upper heat sink 51 to quickly dissipate heat transferred to the upper heat sink 51, as shown in FIG. 6, as necessary, the upper heat sink 51. A space is formed in the inside of the upper heat sink 51, and a cooling medium C such as water and gel is filled in the inner space of the upper heat sink 51, and the heat pipe 52 or the heat transfer element 53 'below is heated to the upper heat sink ( 51) may extend to the internal cooling medium (C).

In addition, it is preferable that the heat pipe 52 is directly connected to the upper heat sink 51, but the heat pipe 52 is not flexible, and the connection member 20 for adjusting the position of the lighting member 30 is flexible. In one case, the heat pipe 52 and the upper heat sink 51 are indirectly connected between the upper heat sink 51 and the heat pipe 52 by the flexible heat conductor 53 '. It is preferable to prevent damage of the heat pipe 52 according to the movement of the 20).

In this case, in order to quickly dissipate heat of the light source 33 which is not collected by the heat pipe 52 to the outside of the case 31, the heat sink 56 may be coupled to the ceiling surface of the case 31, or the heat sink Instead of the 56, a reflecting plate (not shown) may be coupled to allow the heat transferred to the reflecting plate to be re-collected in the heat pipe 52. As shown, it may be in close contact with the bottom surface of the heat sink 56 or the reflecting plate.

On the other hand, the light transmitting body 32 coupled to the lower end of the case 31 of the lighting member 30 is for dispersing light. When the power LED is used as the light source, the light irradiated from the LED does not diffuse widely due to its characteristics. The glare tends to be severe because it is concentrated in a small area.

Therefore, although the lens L is attached to the power LED to diffuse the light, in the case of a high-capacity light source, it is difficult to prevent glare, and the light transmitting body 32 having a plurality of irregularities formed on both surfaces in order to refract and scatter light. ) Is preferable, and may not be combined when a light source other than a power LED is used.

As shown in FIG. 4, the coolant storage member 40 filled with the coolant is inserted into and coupled to the inner cylinder 41 of the upward opening type fixed to the base 11 and detachably inserted into the outer cylinder 41. The inner cylinder 42 is filled with (W), and the outer cylinder 42 is connected to the lower heat sink 54.

At this time, the outer cylinder 41 and the inner cylinder 42 is preferably made of a metal having a large heat transfer coefficient such as aluminum or copper, and the inner cylinder 42 may be provided with a fixing pin (P) for standing candles.

And it is possible to have a plate-like heating means 43 on the bottom or side of the inner cylinder 41 to heat the coolant without using a lamp, or to heat the cooling water more quickly when using the lamp, the outer cylinder 41 When the heating means 43 is provided on the inner side, it is preferable to interpose the elastic body 44 between the heating means 43 and the inner surface of the outer cylinder 41 so that the heating means 43 can be in close contact with the inner cylinder 42. .

That is, the heat transfer efficiency can be further improved by bringing the heating means 43 into close contact with the outer surface of the inner cylinder 42 by the elastic force of the elastic body 44.

In addition, the pressure switch (not shown in the drawing) at the bottom of the outer cylinder 41 so that the heating means 43 is automatically stopped when the cooling water (W) filled in the inner cylinder 42 during the operation of the heating means 43 is evaporated. H), it is also preferred that the on / off of the heating means 43 by the pressure switch in the main switch-on state.

Meanwhile, the lower heat sink 54 used as a means for heating the cooling water W may be replaced with a Peltier element, or a Peltier element may be additionally used together with the lower heat sink 54.

The Peltier element is a device having a characteristic that the one side is a heat dissipation action when the current is applied, the other side is a cooling action, the heat dissipation surface of the Peltier element to the coolant storage member 40 side, the cooling surface Is coupled to the heat conductor 53 side, the cooling fan is coupled to the heat dissipation surface to quickly transfer the recovered heat to the cooling water.

The lighting device equipped with the cooling device of the present invention as described above, the controller for controlling the operation time of the lamp, the heating temperature of the cooling water storage member by the heating means, the sensor and the lamp to inform it when the coolant filled in the water tank is insufficient. May be combined.

In addition, in the lamp of the present invention, the cooling water storage member 40 may be laminated on the upper surface of the upper heat sink 51, as shown in FIG.

In this case, the heat radiator 11A and the power supply 11B may be coupled to the case 31 instead of the base 11, and the heat conductor 53 and the lower heat sink 54 are omitted.

In addition, the heat sink 11A and the electric supply 11B may be built into the base 11 while stacking the cooling water storage member 40 on the upper surface of the upper heat sink 51 as described above. 54 is omitted, but the heat conductor 53 is used.

Meanwhile, when the upper heat sink 51 is formed in an upward open type structure having a plurality of cooling fins on an outer surface thereof, the upper heat sink 51 may be used as a cooling water storage member.

1 is a perspective view of a lamp of a first embodiment of the present invention.

Figure 2 is a sectional view of a first embodiment of the lamp of the present invention.

Figure 3 is a cross-sectional view of the lighting member constituting the first embodiment of the lamp of the present invention.

Figure 4 is a cross-sectional view of the cooling water storage member constituting the first embodiment of the lamp.

5 is a perspective view of a lamp of a second embodiment of the present invention;

6 is a partial cross-sectional view of a third embodiment of the present invention lamp.

            ((Explanation of symbols for main part of drawing))

    10. Support member 11. Base 11A. Radiator

    11B. Electric supply 12. Support 20. Connecting member

    30. Lighting member 31. Case 32. Light transmitting body

    33. Light source 33A. LED element 33B. Metal PC

    40. Cooling water storage member 41. Outer cylinder 42. Inner cylinder

    43. Heating means 44. Elastic body 50. Heat transfer member

    51. Top heatsink 52. Heat pipe 53. Heat transfer conductor

    54. Lower heat sink 55. Heat collector 56. Heat sink

    C. Cooling media H1, H2. Hollow L. Lens

    P. Fixed pin S. Control switch R1, R2. Interior space

    W. Coolant

Claims (13)

A support member (10) consisting of a base (11) placed on the floor and a tubular support (12) standing on an upper surface of the base (11); A tubular connection member 20 extending outward in a state of being coupled to an upper end of the support 12; Illumination consisting of a downward open case 31 coupled to an outer end of the connection member 20 and a light source 33 having an electricity supply 11A coupled to the case 31 and having a radiator 11A coupled thereto. Member 30; A heat transfer member 50 including an upper heat sink 51 coupled to an upper end of the support 12, and heat pipes 52 coupled to upper heat sinks 51 and light sources 33 at both ends; Lamp equipped with a cooling device, characterized in that configured to include. According to claim 1, Cooling water storage member 40 is laminated on the upper surface of the upper heat sink 51, The electric supply (11A) is coupled to the radiator (11A) is a lamp having a cooling device, characterized in that coupled to the case (31). According to claim 1, Cooling water storage member 40 is laminated on the upper surface of the upper heat sink 51, The electric supply 11A to which the heat sink 11A is coupled is built in the base 11, The upper heat sink (51) and the heat sink (11A) is provided with a cooling device, characterized in that connected to the heat conduction (53). According to claim 1, Cooling water storage member 40 is laminated on the upper surface of the base 11, The electric supply 11A to which the heat sink 11A is coupled is built in the base 11, The heat sink 11A and the upper heat sink 51 are connected to the heat transfer conductor 53. The cooling water storage member 40 and the heat transfer conductor 53 is provided with a cooling device, characterized in that connected by a lower heat sink (54) passing through the support (12). According to any one of claims 2 to 4, wherein the cooling water storage member 40, An upwardly open outer cylinder 41; Illumination with a cooling device, characterized in that consisting of the inner cylinder 42 is inserted and coupled to the inside of the outer cylinder (41) detachably and the cooling water (W) is filled. 6. The lamp of claim 5, wherein a heating means (43) is provided inside the outer cylinder (41). 7. The lamp of claim 6, wherein an elastic body (44) is coupled between the outer cylinder (41) and the heating means (43). The lamp of claim 1, wherein a light transmitting body (32) for dispersing and scattering the light of the light source (33) is coupled to the lower end of the case (31). The method of claim 1, wherein the heat collector 55 is in close contact with the upper surface of the light source 33, Lamp having a cooling device, characterized in that the heat pipe 52 is inserted into the heat collector (55). The lamp of claim 1, wherein a flexible heat conductor (53 ') is interposed between the upper heat sink (51) and the heat pipe (52). The lamp of claim 1, wherein a heat sink (56) is coupled to the ceiling surface of the case (31). The lamp of claim 1, wherein the lower heat sink (54) is a Peltier element. The lamp of claim 1, wherein a cooling medium (C) is filled in the upper heat sink (51).

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