KR20100122615A - Led lighter having air channel - Google Patents

Abstract

The present invention relates to a landscape luminaire having a short circuit prevention function, and more particularly, to improve the internal humidity of the lighting lamp holder and the internal humidity of the lighting lamp holder by circulation of air accumulated in the lighting lamp holder and the interior of the lighting lamp holder. Therefore, the humidity accumulated in the interior of the lighting lamp holder and the interior of the lighting lamp holder is significantly reduced, and the humidity accumulated in the interior of the lighting lamp holder and the interior of the lighting lamp holder is reduced. The present invention relates to a landscape luminaire having a short circuit prevention function that can prevent a short circuit accident.

Description

Landscape luminaire with leakage prevention function {LED LIGHTER HAVING AIR CHANNEL}

The present invention relates to a landscape luminaire having a short circuit prevention function, and more particularly, to improve the internal humidity of the lighting lamp holder and the internal humidity of the lighting lamp holder by circulation of air accumulated in the lighting lamp holder and the interior of the lighting lamp holder. Therefore, the humidity accumulated in the interior of the lighting lamp holder and the interior of the lighting lamp holder is significantly reduced, and the humidity accumulated in the interior of the lighting lamp holder and the interior of the lighting lamp holder is reduced. The present invention relates to a landscape luminaire having a short circuit prevention function that can prevent a short circuit accident.

In general, the street lamp is installed on the road, such as people and vehicles pass through the light to facilitate the walk and the traffic of the vehicle at night. Lighting lamps such as halogen or mercury lamps are used for street lamps. These lamps have a short lifespan and have to be replaced periodically, requiring considerable cost and effort for maintenance and repair. Therefore, in recent years, high power LED lamps that use less power and have better lighting performance have been used. High-power LED lamps have a long service life and have superior brightness than general halogen or mercury lamps, and have the advantage of saving energy by remarkably reducing the power used.

However, high-power LED lamps such as LED lamps generate high heat when used, and high heat affects not only high-power LED lamps but also peripheral components, causing problems or shortening the lifespan. Therefore, the lamp is provided with a separate cooling device for cooling the high heat generated from the high output LED lamp. Although many light emitting diode lighting apparatuses having various cooling means have been known, they generally have problems such as complicated structure, expensive price and frequent failure, and solve various problems. Is known.

Conventional LED lamp cooling device is provided with a plurality of heat sinks to cool the high heat generated in the high output LED lamp on the back of the LED fixed circuit board. The heat sink has a configuration in which a plurality of heat dissipation fins are integrally formed on a base formed in a plate shape to cool the high power LED lamp by absorbing and dissipating high heat generated from the high power LED lamp by a heat sink. However, the cooling by the heat sink is simply because heat is transferred from the high power LED lamp to the heat sink by the heat transfer performance of the heat sink material, and the heat absorbed by the heat sink is radiated by heat exchange with air contacting a plurality of heat sink fins. The heat exchange between the heatsink and the heatsink is very low, so the LED lamp cannot be cooled down quickly.Therefore, the LED lamp is overheated.In order to increase the cooling efficiency, the number of heat sinks must be increased and the number of heat sink fins must be increased. Space is limited and it is difficult to further increase cooling performance. Therefore, it is not possible to sufficiently cool the high heat of the high power LED lamp, so that the problem of causing the high power LED lamp and the peripheral parts to fail and shorten the life due to overheating cannot be completely solved.

In addition, the lighting fixture using the light emitting diode has the characteristics of high energy efficiency, long life and does not emit pollutants, compared to other light emitting fixtures (fluorescent lamp, mercury lamp, etc.), but it has a disadvantage that the price is rather expensive. In luminaires using light emitting diodes (LEDs), when the rated current flows through the light emitting diodes, the temperature is usually maintained at about 60 ° C. However, when more than the rated current flows, the light emitting diodes are damaged due to high temperatures. Occurs frequently. The light emitting diode has a characteristic of constant voltage at both ends of the light emitting diode when the current flows, but the voltage increases very minutely as the current increases, and when the current increases above a certain limit, the overheating temperature increases rapidly. Due to this, there was a problem that the light emitting diodes were broken.

The present invention has been made to solve the above problems, and because the internal humidity of the lighting lamp holder and the internal humidity of the lighting lamp holder by the circulation of air accumulated in the interior of the lighting lamp holder and the lighting lamp holder, the interior of the lighting lamp holder And the humidity accumulated inside the lighting fixtures is greatly reduced, and the humidity accumulated in the interior of the lighting fixtures and the interior of the lighting fixtures is reduced, resulting in the insulation effect of electrical appliances such as ballasts and preventing short circuit accidents. can do. In addition, the present invention is a PCB substrate is coupled to the lower support plate lower part of the case body, such as lighting, a plurality of heat sinks are connected in a stack while maintaining a constant interval between the heat sink and the heat sink is connected to the heat sink and heat sink It relates to an LED lamp having an air-cooled heat radiation vent space portion of the laminated heat sink in which the laminated heat sink is laminated in the horizontal direction on the upper side of the lower support plate in a state where the air-cooled heat radiation vent space portion of the laminated heat sink is formed therebetween. The present invention can heat the heat generated from the PCB board by air-cooled, so that the structure is simple and reduced in area and weight as well as the air-cooled cooling function by the air compared to the conventional LED lamp cooling device to improve the life of the lighting fixture When the light emitting diode lighting device using the LED lamp cooling device of the present invention is used as a street lamp, a security lamp, or a tunnel, the high heat generated from the light emitting diode of the lighting device is lowered by the air-cooled cooling device. The purpose of the present invention is to provide a lamp that can increase the use time of the lighting device by increasing the cooling efficiency and reducing the occurrence of failure. The present invention is excellent in heat exchange performance, heat exchange with high-power LED lamp is made quickly and efficiently, and by making a quick and efficient heat dissipation can increase the cooling efficiency and performance of high-power LED lamp, high power LED by overheating It is an object of the present invention to provide an air-cooled cooling device such as a high power LED light that can prevent failure of lamps and peripheral parts and shorten the life of the lamp.

The present invention is a landscape lamp consisting of a light fixture 100 and a light fixture 200, the air inlet 450 formed in the lower portion of the light fixture 410; Lighting lamp holder 410 so that the outside air introduced from the air inlet 450 formed in the lower portion of the lamp lamp 410 can penetrate through the air vent channel 12 of the lamp case body 10 from the air inlet 450 Vent pipe channel 420 of the lamp lamp 410 formed in the; A vent pipe channel 220 formed in the lamp fixture 200 so that external air introduced from the air inlet 450 passes through the vent pipe channel 420 of the lamp lamp 410; A lamp case body 10 in which a lower support plate 20 is formed in the LED lamp 300 coupled to the lamp holder 200; A PCB substrate 100 coupled to a lower portion of the lower support plate 20; And a plurality of heat sinks 30 are connected to each other in a state in which the conductive connection member 40 is inserted between the heat sink 30 and the heat sink 30, and the heat sink 30 and the heat sink 30 are connected to each other. Provides a landscape luminaire having an electrical leak prevention function consisting of a laminated heat sink 30 is laminated on the upper support plate 20 in a state in which the air-cooled heat radiation vent space portion 50 of the laminated heat sink is formed between.

The landscape lighting fixture of the present invention improves the interior humidity of the lighting lamp holder and the interior of the lighting lamp holder by the circulation of air accumulated inside the lighting lamp holder and the interior of the lighting lamp holder. As the accumulated humidity is greatly reduced, and the humidity accumulated in the interior of the lighting lamp holder and the interior of the lighting lamp holder is reduced, the insulation effect between the electrical equipment such as the ballast and the lighting equipment is prevented, thereby preventing a short circuit accident.

In addition, the LED lamp of the present invention has a very economical and practical effect to extend the life of the luminaire due to the simple structure, reduced area and weight, and excellent air-cooled cooling function by air compared to the conventional LED lamp cooling device. When using a light emitting diode lighting device using an air-cooled cooling device as a street lamp, a security lamp, or a tunnel, lighting is increased by lowering the high heat generated from the light emitting diode of the lighting device by the air-cooled cooling device to increase the cooling efficiency and reduce the occurrence of failure. There is an effect that can increase the use time of the instrument.

The present invention is a landscape lamp consisting of a light fixture 100 and a light fixture 200, the air inlet 450 formed in the lower portion of the light fixture 410; Lighting lamp holder 410 so that the outside air introduced from the air inlet 450 formed in the lower portion of the lamp lamp 410 can penetrate through the air vent channel 12 of the lamp case body 10 from the air inlet 450 Vent pipe channel 420 of the lamp lamp 410 formed in the; A vent pipe channel 220 formed in the lamp fixture 200 so that external air introduced from the air inlet 450 passes through the vent pipe channel 420 of the lamp lamp 410; The outside air introduced from the air inlet 450 passes through the vent pipe channel 420 of the lamp holder 410 and then passes through the vent pipe channel 220 of the lamp holder 200, and then the lamp case body 10. Lamp case through which the vent channel 12 of the lamp case body 10 is formed so as to be coupled to the lamp fixture 200 in a state of passing through the outlet at the entrance of the vent channel 12 of Main body 10; A lower support plate 20 coupled to the lower part of the lamp case body 10 and having a PCB board insertion groove 22 formed therein so as to insert the PCB board 100 therein; A PCB substrate 100 inserted into the PCB substrate insertion groove 22 of the lower support plate 20 and on which the LED 110 is mounted; A plurality of heat sinks 30 are connected in a stack while a plurality of heat sinks 30 are maintained at a predetermined interval while the conductive connection member 40 is inserted between the heat sink 30 and the heat sink 30, and the heat sink 30 A laminated heat sink 30 having a plurality of heat sinks 30 stacked on top of the lower support plate 20 in a state in which an air-cooled heat-dissipating vent space portion 50 of the heat sink is formed between the heat sink and the heat sink 30; A lower cover 120 covering the PCB substrate 100; And an upper cover 130 covering the laminated heat sink 30.

In the landscape luminaire of the present invention, the lower support plate is bolted to the lower part of the lamp case body 10; And it is characterized in that it is made of any one form selected from the one formed integrally under the lamp case body (10). In addition, the laminated heat sink in the landscape lighting fixture with a short-circuit prevention function of the present invention is that a plurality of heat sinks 30 are laminated in a state in which the conductive connecting member 40 is inserted between the heat sink 30 and the heat sink 30; A plurality of heat sinks 30 are integrally formed on both side surfaces of the connection member 40-1; And a plurality of heat sink 30 is inserted into the both sides of the connection member 40-1, characterized in that consisting of any one laminated heat sink structure selected from a plurality of heat sink 30 is combined. In the landscape luminaire with an earth leakage prevention function of the present invention, the laminated heat sink is combined with a plurality of heat sinks 30 laminated with a heat conductive adhesive between the heat sink 30 and the conductive connecting member 40: 30 and the conductive connecting member 40 is characterized in that any one of the coupling form selected from a plurality of heat sinks 30 are coupled in a stacked state using the bolt 150.

The landscape luminaire of the present invention has a ballast 430 is built into the vent pipe channel 420 of the lamp holder 410, when the ballast 430 is heated, the air inlet formed in the lower portion of the lamp lamp 410 ( The outside air introduced from 445 passes through the vent channel 420 of the lamp fixture 410 while being changed to an updraft and then passes through the vent channel 220 of the lamp fixture 200, and then the lamp case body ( 10 through the vent channel 12 of the lamp through the outlet of the vent channel 12 of the lamp case body 10, the circulation of the outside air is made from the bottom to the top regardless of season, day and night.

In addition, the landscape luminaire of the present invention because the heat generated from the PCB substrate 10 is discharged through the air-cooled heat radiation vent space portion 50 of the laminated heat sink in the air inlet 445 formed in the lower portion of the lamp lamp 410 Inflowing outside air passes through the vent pipe channel 12 of the lamp case body 10 while being changed into an updraft and is discharged to the outlet of the vent pipe channel 12 of the lamp case body 10 during the season, day and night. Regardless, the circulation of outside air goes from bottom to top.

In the landscape luminaire with an electric leakage prevention function of the present invention, the vent air channel 12 is formed in the lamp case body 10 so that the external air introduced from the air inlet 450 formed at the lower part of the lamp holder 410 is provided. After passing through the vent channel 420 of the lamp holder 410, the outside air introduced from the air inlet 450 by passing through the vent tube channel 220 of the lamp fixture 200 is applied to the case of the lamp case body 10. While passing through the vent pipe channel 12 and discharged to the outside, the inside air and the outside air in the interior of the lighting fixture 410 and the interior of the lighting fixture 200 is circulated. The landscape lighting fixture of the present invention improves the interior humidity of the lighting lamp holder 410 and the interior of the lighting lamp holder 200 by circulation of air accumulated in the interior of the lighting lamp holder 410 and the lighting fixture holder 200. Therefore, the humidity accumulated in the interior of the lighting fixture 410 and the interior of the lighting fixture 200 is greatly reduced, and the humidity accumulated in the interior of the lighting fixture 410 and the lighting fixture 200 is reduced. Insulation effect between electric appliances such as ballasts and lighting fixtures can be prevented to prevent short circuit accidents.

In the landscape luminaire of the present invention, the air inlet 110 is preferably equipped with a rain cover for preventing rain inlet 440, the rain cover for preventing the rain inlet 440 is formed with a prevention projection 442 is rain water is introduced It is preferable that the outside air is introduced through the air inlet groove 444 in a state that prevents it.

The landscape luminaire of the present invention includes a light emitting unit emitting light with a light emitting diode (LED) 110, a power supply unit for supplying power to the LED, an air-cooled heat-dissipating vent space unit 50 of a laminated heat sink cooling the heat of the light emitting unit, and the devices. It is a lighting fixture comprised by the lamp case body 10 to fix.

The LED lamp of the present invention is an LED lamp coupled to the lamp holder 200 of the luminaire consisting of a lamp holder and the lamp fixture. The LED lamp of the present invention is a PCB substrate 100 is built in the interior of the lamp case body 10 so that the LED 110 can be mounted in the interior of the lamp case body 10 like a general LED lamp,

A plurality of LEDs 110 are mounted on the PCB substrate 100.

In the LED lamp of the present invention, the lower support plate 20 of the case body 10 is preferably made of an aluminum material, and is bonded in a form in which the PCB substrate 100 is in close contact with the lower support plate 20 made of aluminum. In the LED lamp of the present invention, the lower support plate 20 of the case body 10 is formed with a PCB substrate insertion groove 22 to insert the PCB substrate 100. In the LED lamp of the present invention, the PCB substrate 100 is to insert the PCB substrate 100 into the PCB substrate insertion groove 22 formed in the lower support plate 20 or to be coupled by bolting to the lower portion of the lower support plate 20. desirable. In the LED lamp of the present invention, an air-cooled heat-dissipating vent space portion 50 of the laminated heat sink is formed at a laminated heat sink part corresponding to an external position corresponding to the contact heat generating surface of the lower support plate 20 to which the PCB substrate 100 is in contact. Air flowing into the air-cooled heat-dissipating vent space portion 50 of the laminated heat sink passes through the air-cooled heat-dissipating vent space portion 50 of the laminated heat sink, and heat generated by the PCB substrate 10 can be radiated by air-cooling.

In the LED lighting lamp having the air-cooled heat-dissipating ventilation space portion of the laminated heat sink of the present invention, the laminated heat sink 30 is preferably made of aluminum, and the conductive connection member 40 is inserted between the heat sink 30 and the heat sink 30. A plurality of heat sinks 30 are connected in a state. In the LED lighting lamp having the air-cooled heat-dissipating ventilation space portion of the laminated heat sink of the present invention, the laminated heat sink is a plurality of conductive connection members 40 inserted between the heat sink 30 and the heat sink 30 as shown in FIGS. The heat sink 30 is laminated in the horizontal direction; 9, the plurality of heat sinks 30 are integrally formed on both sides of the connection member 40-1; And it is made of any one laminated structure selected from the combined form of a plurality of heat sink 30 is inserted into both sides of the connection member (40-1). In the LED lighting lamp having the air-cooled heat-dissipating ventilation space portion of the laminated heat sink of the present invention, the laminated heat sink is coupled between the heat sink 30 and the conductive connecting member 40 with a thermal conductive adhesive as shown in FIGS. 4 to 11 or bolts as shown in FIG. 9. Preference is given to using 150.

In the LED lamp of the present invention, the laminated heat sink 30 is installed at a position corresponding to the heat generating surface of the lower support plate 20 to which the PCB substrate 100 is in contact with a plurality of heat sinks 30 stacked in a horizontal direction. Heat generated from the PCB board 10 is transferred to the heat sink 30, and the PCB board 10 is provided in the air-cooled heat-dissipating vent space portion 50 of the laminated heat sink formed between the heat sink 30 and the heat sink 30. Heat generated in the air is radiated by air cooling. In the LED lamp of the present invention, the heat dissipation plate 30 has a plurality of heat sinks 30 stacked on the outlet side of the vent channel 12 of the lamp case body 10 to be laminated between the heat sink 30 and the heat sink 30. The air-cooled heat dissipation aeration space portion 50 of the air is formed, the heat generated from the PCB substrate 10 in the air-cooled heat dissipation aeration space portion 50 of the laminated heat sink is formed between the heat sink 30 and the heat sink 30 is air-cooled Heat dissipation.

In the LED lighting lamp having the air-cooled heat-dissipating ventilation space portion of the laminated heat sink of the present invention, the laminated heat sink is a plurality of conductive connection members 40 inserted between the heat sink 30 and the heat sink 30 as shown in FIGS. The heat sink 30 is laminated in the horizontal direction; 9, the plurality of heat sinks 30 are integrally formed on both side surfaces of the connection member 40-1; And it is made of any one laminated structure selected from the combined form of a plurality of heat sink 30 is inserted into both sides of the connection member (40-1).

In the LED lighting lamp of the present invention, the laminated heat sink is formed with an insertion groove 32 formed on one side of the heat sink 30 as shown in FIG. 7 so that a plurality of insertion grooves 32 are provided on one side of the lamp case body 10. It is preferable to be coupled to the lamp case body 10 in the inserted state. In addition, in the LED lamp of the present invention, the laminated heat sink is preferably coupled in a state of being inserted into a plurality of insertion grooves formed on one side of the lamp case body 10, and a protrusion formed on one side of the lamp case body 10. It is preferable to couple to and fix the bolt 150.

In the LED lamp 300 coupled to the lamp holder 200 of the present invention, the laminated heat sink 30 may be manufactured in various forms including a circular shape, an elliptical shape, a triangular shape, and a rectangular shape, and may be stacked in an upper direction. When the heat sink is preferably made in the form of a lamp that becomes smaller in size. The LED lamp 300 coupled to the lamp holder 200 of the present invention may be manufactured in various lamp shapes, including circular, elliptical, triangular, and rectangular, depending on the shape of the laminated heat sink 30. In the case of laminating in the upper direction, the size of the heat sink is preferably manufactured in the form of a lamp having a smaller size as shown in FIGS.

The landscape luminaire of the present invention has a ballast 430 is built into the vent pipe channel 420 of the lamp holder 410, when the ballast 430 is heated, the air inlet formed in the lower portion of the lamp lamp 410 ( The outside air introduced from 445 passes through the vent pipe channel 420 of the lamp fixture 410 after being changed to an upward airflow, and then passes through the vent pipe channel 220 of the lamp fixture 200, and then the lamp case body ( 10 is discharged through the vent channel 12 of the vent tube 12 of the lamp case body 10, the circulation of the outside air is made from the bottom to the top, regardless of season, day and night, Since the heat generated from the PCB substrate 10 is discharged through the air-cooled heat-dissipating vent space portion 50 of the laminated heat sink, the external air introduced from the air inlet 445 formed at the lower part of the lamp lamp 410 is an upward airflow. Lights changing to Through the vent channel 12 of the case body 10 and discharged to the outlet of the vent channel 12 of the lamp body 10, the circulation of external air flows from the bottom to the top regardless of season, day or night. Is done.

In the landscape luminaire with an electric leakage prevention function of the present invention, the vent air channel 12 is formed in the lamp case body 10 so that the external air introduced from the air inlet 450 formed at the lower part of the lamp holder 410 is provided. After passing through the vent channel 420 of the lamp holder 410, the outside air introduced from the air inlet 450 by passing through the vent tube channel 220 of the lamp fixture 200 is applied to the case of the lamp case body 10. While passing through the vent pipe channel 12 and discharged to the outside, the inside air and the outside air in the interior of the lighting fixture 410 and the interior of the lighting fixture 200 is circulated. The landscape lighting fixture of the present invention improves the interior humidity of the lighting lamp holder 410 and the interior of the lighting lamp holder 200 by circulation of air accumulated in the interior of the lighting lamp holder 410 and the lighting fixture holder 200. Therefore, the humidity accumulated in the interior of the lighting fixture 410 and the interior of the lighting fixture 200 is greatly reduced, and the humidity accumulated in the interior of the lighting fixture 410 and the lighting fixture 200 is reduced. Insulation effect of electric and lighting equipment such as ballast can be prevented.

The landscape luminaire with an earth leakage prevention function of the present invention has a simple structure and reduced area and weight as well as an air-cooled cooling function by air compared to a conventional LED lamp cooling device, which is very economical to prolong the life of the luminaire. There is a practical effect. When the light emitting diode lighting device using the LED lamp cooling device of the present invention is used as a street light, a security lamp, or a tunnel, the cooling efficiency is increased by lowering the high heat generated from the light emitting diode of the lighting device by the cooling device of the present invention. By reducing the occurrence of failures there is an effect that can increase the use time of the luminaire.

1 is a perspective view showing a landscape luminaire of the present invention

Figure 2 is a perspective view of the landscape luminaire of the present invention

Figure 3 is a perspective view of the landscape luminaire of the present invention

Figure 4 is a plan view showing the LED lamp of the present invention

5 is a bottom view showing the LED lamp of the present invention.

Figure 6 is an exploded perspective view showing the LED lamp of the present invention

Figure 7 is an exploded perspective view showing the LED lamp of the present invention

8 is a cross-sectional view showing that the lower support plate is coupled to the lower part of the lamp case body in the LED lamp of the present invention with a bolt;

Figure 9 is a cross-sectional view showing that the lower support plate is coupled to the lower part of the lamp case body in the LED lamp of the present invention with a bolt

10 is a cross-sectional view showing that the lower support plate is integrally formed on the lower part of the lamp case in the LED lamp of the present invention.

11 is a cross-sectional view showing a plurality of heat sinks formed integrally on both sides of the connection member in the LED lamp of the present invention.

[Description of Drawings]

10: main body of the lighting lamp 12: vent channel

20: lower support plate 22: PCB substrate insertion groove

30: heat sink 32: insertion groove

40, 40-1: conductive connecting member 50: air-cooled heat radiation vent space portion of the laminated heat sink

100: PCB substrate 110: LED

120: lower cover 130: upper cover

      150: bolt 160: nut

200: lighting fixture holder 220: vent channel

300: LED light 400: light fixture

440: rain water inlet prevention cover 410: lighting lamp

420: vent channel 430: ballast

440: lower cover for preventing water inflow 442: prevention protrusion

444: air inlet groove 450: air inlet

Claims (4)

In the landscape luminaire consisting of a light fixture 100 and a light fixture 200, the landscape luminaire is an air inlet 450 formed in the lower portion of the light fixture 410; Lighting lamp holder 410 so that the outside air introduced from the air inlet 450 formed in the lower portion of the lamp lamp 410 can penetrate through the air vent channel 12 of the lamp case body 10 from the air inlet 450 Vent pipe channel 420 of the lamp lamp 410 formed in the; A vent pipe channel 220 formed in the lamp fixture 200 so that external air introduced from the air inlet 450 passes through the vent pipe channel 420 of the lamp lamp 410; The outside air introduced from the air inlet 450 passes through the vent pipe channel 420 of the lamp holder 410 and then passes through the vent pipe channel 220 of the lamp holder 200, and then the lamp case body 10. Lamp case through which the vent channel 12 of the lamp case body 10 is formed so as to be coupled to the lamp fixture 200 in a state of passing through the outlet at the entrance of the vent channel 12 of Main body 10; A lower support plate 20 coupled to the lower part of the lamp case body 10 and having a PCB board insertion groove 22 formed therein so as to insert the PCB board 100 therein; A PCB substrate 100 inserted into the PCB substrate insertion groove 22 of the lower support plate 20 and on which the LED 110 is mounted; A plurality of heat sinks 30 are connected in a stack while a plurality of heat sinks 30 are maintained at a predetermined interval while the conductive connection member 40 is inserted between the heat sink 30 and the heat sink 30, and the heat sink 30 A laminated heat sink 30 having a plurality of heat sinks 30 stacked on top of the lower support plate 20 in a state in which an air-cooled heat-dissipating vent space portion 50 of the heat sink is formed between the heat sink and the heat sink 30; A lower cover 120 covering the PCB substrate 100; And an upper cover 130 covering the laminated heat sink 30. According to claim 1, wherein the lower support plate is coupled to the lower part of the lamp case body (10) with a bolt; And a landscape light fixture having an electric leakage preventing function, characterized in that it is made of any one type selected from one being formed integrally under the lamp case body (10). According to claim 1, The laminated heat sink is a plurality of heat sink 30 is laminated with a conductive connection member 40 is inserted between the heat sink 30 and the heat sink 30; A plurality of heat sinks 30 are integrally formed on both side surfaces of the connection member 40-1; And a plurality of heat dissipation plates 30 inserted into both side surfaces of the connection member 40-1, wherein the heat dissipation preventive function is made of any one of a plurality of heat dissipation plates 30. Landscaped luminaires. The method of claim 1, wherein the laminated heat sink is coupled between the heat sink 30 and the conductive connection member 40 in a state in which a plurality of heat sinks 30 are laminated with a heat conductive adhesive: and the heat sink 30 and the conductive Landscape lighting fixture with a leakage prevention function, characterized in that any one of the coupling form selected from the coupling member 40 is coupled to a plurality of heat dissipation plate 30 in a stacked state using a bolt 150.

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