KR100965454B1 - Led guard lamp - Google Patents

Abstract

PURPOSE: An LED(Light Emitting Diode) security lamp is provided to easily emit the heat generated from a LED by forming the radiating part of a heat sink in a spiral shape pattern. CONSTITUTION: A plurality of heat radiating fins are formed in the external periphery of a body(10). A heat dissipation groove is formed in each heat radiation fin. A chrome layer is spread in the back mirror of a reflector(20) in order to improve the light reflexibility. A plurality of LEDs are installed in a plurality of binding holes of the reflector. A radiation sheet, heat dissipation silicon, and a cooling fin are successively attached to the circumference of the LED chip. A heat sink(32) has the helix radiating part. The heat sink emits the heat delivered from the LED to the circuit board. A light diffusion lens(36) diffuses the light emitted from the LED.

Description

LED security lamp {LED guard lamp}

The present invention relates to an LED security lamp, and more particularly, to a heat radiation effect is maximized, the brightness is improved, and to the LED security lamp to prevent the foreign matter from penetrating the inside.

Commonly used security lamps are installed in streets, roads, etc. and are supplied with power to illuminate the surroundings according to time and weather such as nighttime, rainy weather, fog, etc., and supply power using mercury lamps, fluorescent lamps, or sodium lamps as light sources. It is used to provide information to pedestrians, drivers, etc. by illuminating the installed area over a certain level of illumination by turning on the power supply by the device and by turning on the timer and the illumination sensor, the controller controlling the light, and the central controller controlling the light source.

According to the current installation standard of such security lamps, when the security lamps are installed at a height of 10M from the ground, the illuminance irradiated from the security lamps to the ground 10M on the right and left of the straight reference point perpendicular to the security lamps should emit up to 20Lux.

Conventional mercury lamps, fluorescent lamps, sodium lamps have to consume high power in order to achieve the above illuminance, resulting in heat generation problems and product life time problems. LED (Light emitting diode) is used as a light source.

The LED security lamp, when the LED emits high-temperature heat is emitted, if the heat emitted is not smoothly discharged to the outside, internal components such as a circuit board is damaged by high heat. Therefore, it is a problem for the industry to discharge the generated high heat to the outside smoothly, and to prevent the internal parts from being damaged by the high heat.

In addition, one of the challenges in the industry is the effort to obtain the maximum high brightness with an expensive LED security light, the situation is trying to obtain high brightness by irradiating the light emitted from the LED to the outside as possible.

An object of the present invention is to provide an LED security lamp to maximize the heat dissipation effect.

Another object of the present invention is to provide an LED security lamp to improve the brightness.

It is still another object of the present invention to provide an LED security lamp to prevent external foreign matter from penetrating into the interior.

LED security lamp of the present invention for achieving the above object, the first step is formed in the lower inner periphery, the second step of smaller diameter is formed on the upper side of the first step, the first step and the second step The tapered surface is formed to be extended toward the lower side between the stepped, the heat radiation fins are formed radially around the outer surface, the coupling groove is formed around the upper coupling portion; A disk-shaped mounting portion is provided, and a plurality of coupling holes are formed in the mounting portion, and reflectors are formed around the coupling holes to reflect light emitted, and a chrome layer is applied to the reflecting mirror to increase light reflectance. A reflection plate having a fixed portion formed in an enlarged manner toward the lower side so as to be in close contact with the tapered surface of the body; It is coupled to each of the coupling holes of the reflector, and a heat radiation sheet is attached around each LED chip to transfer heat generated from the LED chip, and one surface of the heat radiation sheet is coated with heat dissipation silicon. LEDs 26 having heat sinks attached thereto to dissipate heat transferred therefrom; A circuit board provided on an installation portion of the reflector and connected to a plurality of LEDs to control them; A heat sink whose periphery is seated on the second step of the body and whose bottom surface is in close contact with the upper surface of the circuit board to release heat transferred from the LEDs to the circuit board; A light diffusion lens whose periphery is seated on the first step of the body and pressed to support the fixing part of the reflecting plate and diffuses light emitted from the LEDs to the outside; An insulating cap having a coupling protrusion formed around an inner circumferential surface of the lower portion coupled to the coupling portion of the body and seated in the coupling groove of the coupling portion; A base coupled to an upper portion of an insulating cap and coupled to a socket such as an LED security light; And a power supply unit installed in the storage space inside the body and connected to the socket and the circuit board to supply power to the circuit board.

Another feature of the LED security light of the present invention, the heat radiation fins of the body, the heat radiation grooves are formed to reduce the overall weight of the body and increase the contact space between the heat radiation fins and the heat radiation space around it.

Another feature of the LED security light of the present invention, the heat sink is a heat transfer portion which is in contact with the upper surface of the circuit board, the heat transfer of the LED and the circuit board, and protruded on the upper surface so as to be perpendicular to the upper surface of the heat transfer portion Consisting of a heat dissipation part, the heat dissipation part is provided radially on the upper surface of the heat transfer part, and is spirally formed to induce rotation of air and reduce frictional resistance between the air and the heat dissipation part when the air flows.

Another feature of the LED security light of the present invention, the light diffusing lens, is formed to have a convex curved surface to the lower side, the mounting portion is formed at both ends to be seated on the first step of the body, the fixing portion of the reflecting plate on the top of the mounting portion The support portion having the taper at the same angle as the fixing portion protrudes so as to be pressed outwardly to be in close contact with the tapered surface of the body.

Another feature of the LED security light of the present invention, a dust cover is coupled to the lower periphery of the body and the circumference of the light diffusion lens to prevent foreign substances from entering the interior.

The present invention as described above, the radiating portion of the heat sink is provided with a plurality of radially on the upper surface of the heat transfer portion, made of a spiral to induce the flow of heat and reduce the frictional resistance between the heat and heat radiating portion during the flow of heat. Therefore, the heat transmitted from the LEDs by the heat dissipation part of the spiral heat sink is smoothly raised while flowing along the spiral of the heat dissipation part, and thus the heat dissipation effect is increased because the heat dissipation fins of the body are guided and released smoothly.

In addition, the heat dissipation fins of the body are formed with heat dissipation grooves to reduce the overall weight of the body and increase the contact space between the heat dissipation fins and the heat dissipation space around the body. Therefore, the heat dissipation fins of the heat dissipation fins are brought into contact with more heat dissipation space, thereby maximizing the heat dissipation effect of the LEDs.

In the present invention, a chromium layer is coated on the bottom of the mounting portion and the inner peripheral surface of the fixing portion so as to increase the light reflectance. Further, the light diffusing lens is formed to have a curved surface that is convex downward. Therefore, the reflectance of the LED light is improved by the chromium layer of the reflector, and the irradiation range of the LED light is diffused by the light diffusion lens, so that the high brightness LED light can be irradiated over a wide range.

In the present invention, the heat sink is seated on the second step of the body, the fixing part of the reflecting plate is seated on the tapered surface of the body, and the seating part of the light diffusing lens is seated on the first step of the body. In this state, when the dust cover is fitted around the lower part of the body and around the support of the light diffusing lens, the support of the light diffusing lens presses the fixing part of the reflecting plate to the tapered surface of the body, and the reflecting plate and the circuit board apply the heat sink to the first step. In close contact. Therefore, the heat sink, the circuit board, the reflecting plate, and the light diffusing lens are supported on the body without a separate fastening means, and are relatively firmly supported without fastening many fixing bolts therebetween, thereby reducing the total number of parts, assembly labor, and manufacturing cost.

The dust cover is coupled to the lower circumference of the body and the circumference of the light diffusing lens to prevent foreign substances from entering the inside. Therefore, foreign matter or moisture is not introduced into the body by the dust cover, thereby preventing damage to components and preventing safety accidents such as a short circuit.

Specific features and advantages of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings.

1 is a front view showing an installation state showing the LED security light of the present invention, Figure 2 is a bottom perspective view of Figure 2, Figure 3 is a schematic cross-sectional view of FIG. Figure 4 is a cross-sectional view of the body, Figure 5 is a schematic perspective view showing a reflecting plate, Figure 6 is a schematic partial side cross-sectional view taken from one LED, Figure 7 is a schematic perspective view showing a heat sheet. 8 is a cross-sectional view of the light diffusion lens, FIG. 9 is a cross-sectional view of the dust cover, and FIG. 10 is a schematic front view showing a state in which LED light is diffused by the light diffusion lens.

The LED security light of the present invention, the body 10, the reflecting plate 20, LEDs 26, the circuit board 31, the heat sink 32, the light diffusion lens 36, the insulating cap 40, the base 42, the power supply 44, and the dust cover 46.

As shown in FIGS. 1 and 2, the body 10 has an accommodating space 11 formed therein, a first stepped portion 12 formed at an inner periphery of the lower part, and a first stepped portion 12 of the first stepped portion 12. The second step 13 of smaller diameter is formed on the upper side. A tapered surface 14 is formed between the first step 12 and the second step 13 toward the lower side, and the heat dissipation fins 15 are radially formed around the outer surface of the body 10. have.

The heat dissipation fins 15 are formed with heat dissipation fins 16 to reduce the overall weight of the body 10 and to increase the contact space between the heat dissipation fins 15 and the heat dissipation space around the heat dissipation fins 15. The coupling portion 17 is formed on the upper side of the body 10 to be coupled to the insulating cap 40, and the coupling groove 18 is coupled to the coupling protrusion 41 of the insulating cap around the coupling portion 17. Is formed.

As shown in FIGS. 3 and 5, the reflecting plate 20 is provided with a mounting portion 21 in the form of a disk, and the mounting portion 21 is provided with a plurality of coupling holes 22. Reflectors 23 are formed around the coupling holes 22 to reflect light emitted, and a chromium layer 24 is coated on the reflectors 23 to increase light reflectance. Around the installation portion 21 of the reflecting plate 20 is formed a fixing portion 25 of the enlarged form toward the lower side to be in close contact with the tapered surface 14 of the body 10.

The LEDs 26 are respectively coupled to the coupling holes 22 of the reflector plate 20 as shown in Figs. 2, 3 and 6. The heat dissipation sheet 28 is attached around the LED chip 27 of the LED 26 so that heat generated from the LED chip 27 is transmitted, and the heat dissipation silicon 30 is coated on one surface of the heat dissipation sheet 28. It is. The heat dissipation silicon 30 is attached to a heat dissipation plate 29 to release heat transferred therefrom to the outside.

As shown in FIG. 3, the circuit board 31 is provided on the mounting portion 21 of the reflecting plate 20 and is in close contact with the heat sink 29 of the LED 26, and is connected to the plurality of LEDs 26. To control them.

3 and 7, the heat sink 32 has a circumference thereof seated on the second step 13 of the body 10, and a bottom surface thereof adheres to the upper surface of the circuit board 31 so that the LED 26 is separated. The heat transmitted to the circuit board 31 is released.

The heat sink 32 is in contact with the upper surface of the circuit board 31, the heat transfer portion 33 to which heat of the LED 26 and the circuit board 31 is transferred, and the upper surface of the heat transfer portion 33 and The heat dissipation part 34 protrudes on the upper surface to make a right angle.

The heat dissipation part 34 of the heat sink 32 is provided radially on the upper surface of the heat transfer part 33, induces the flow of heat and the friction resistance between the heat and the heat dissipation part 34 during the flow of heat. It is made spirally to reduce.

3, 8 and 10, the light diffusing lens 36 has a circumference thereof seated on the first step 12 of the body 10 and presses the fixing part 25 of the reflecting plate 20. It supports and diffuses light emitted from the LEDs 26 to the outside.

The light diffusing lens 36 is formed to have a curved surface that is convex downward, and a mounting portion 37 is formed at both ends to be seated on the first step 12 of the body 10. A support part having a taper at the same angle as that of the fixing part 25 is pressed on the fixing part 25 of the reflecting plate 20 in the outward direction to the tapered surface 14 of the body 10. 38) protrude.

10 is a schematic cross-sectional view showing a state in which light emitted from the LED 26 is diffused relatively broadly by the light diffusion lens 36 of FIG. 10. Since the light of the LED 26 is diffused by the light diffusing lens 36 of the convex shape downward, a wide range can be irradiated.

As shown in FIG. 3, the insulating cap 40 has a coupling protrusion 41 around an inner circumference such that the lower end thereof is coupled to the coupling portion 17 of the body 10 and is seated in the coupling groove 18 of the coupling portion 17. ) Is formed. The base 42 is coupled to the upper end of the insulating cap 40.

As shown in FIG. 3, the base 42 is connected to a socket 2 provided with a lower portion coupled to an upper circumference of the insulating cap 40 and installed in a support 1 such as an LED security lamp.

The power supply 44 is installed in the storage space 11 inside the body 10 as shown in FIG. 3 and electrically connected to the base 42 and the circuit board 31 to supply power to the circuit board 31. To supply.

The dust cover 46 is coupled to the lower circumference of the body 10 and the circumference of the light diffusing lens 36 as shown in FIGS. 3 and 9. The dust cover 46 serves to prevent foreign matter from flowing into the inside.

The LED security lamp of this invention has the following characteristics.

First, the heat dissipation part 34 of the heat sink 32 is provided radially on the upper surface of the heat transfer part 33, induces the flow of heat and the frictional resistance between the heat and heat dissipation portion 34 during the flow of heat It is made spirally to reduce.

Therefore, the heat transmitted from the LEDs 26 by the heat dissipation part 34 of the heat sink 32 made of spiral flows smoothly while flowing along the spiral of the heat dissipation part 34, and accordingly, the heat dissipation fin ( 15) The heat radiation effect is increased because it is induced and released smoothly.

Second, the heat dissipation fins 15 of the body 10 are formed with heat dissipation grooves 16 to reduce the overall weight of the body 10 and to increase the contact space between the heat dissipation fins 15 and the heat dissipation space around the heat dissipation fins 15. .

Therefore, the heat dissipation fins 15 are in contact with more heat dissipation space by the heat dissipation grooves 16 of the heat dissipation fins 15, thereby maximizing the heat dissipation effect of the LEDs 26.

Third, in the present invention, the chromium layer 24 is coated on the bottom surface of the mounting portion 21 and the inner circumferential surface of the fixing portion 25 to increase the light reflectance. In addition, the light diffusion lens 36 is formed to have a curved surface that is convex downward.

Therefore, the reflectance of the LED 26 light is improved by the chromium layer 24 of the reflector 20, and the irradiation range of the LED 26 light is diffused by the light diffusion lens 36, so that the LED 26 light having high brightness You can investigate to a wide range.

Fourth, the heat sink 32 is seated on the second step 13 of the body 10, and the fixing part 25 of the reflector plate 20 is seated on the tapered surface 14 of the body 10, and the body 10 is disposed. The mounting portion 37 of the light diffusing lens 36 is seated on the first step 12 of the lens.

In such a state, when the dust cover 46 is fitted around the lower circumference of the body 10 and around the support 38 of the light diffusing lens 36, the support 38 of the light diffusing lens 36 is fixed to the reflection plate 20. The government 25 is pressed against the tapered surface 14 of the body 10 and the reflecting plate 20 and the circuit board 31 adhere the heat sink 32 to the first step 12.

Therefore, the heat sink 32, the circuit board 31, the reflecting plate 20, and the light diffusing lens 36 are supported on the body 10 without a separate fastening means, and relatively firmly supported without fastening many fixing bolts therebetween. Therefore, the total number of parts, assembly labor and manufacturing cost are reduced by that much.

Fifth, the dust cover 46 is coupled to the lower circumference of the body 10 and the circumference of the light diffusion lens 36 to prevent foreign substances from entering the inside.

Therefore, the dust cover 46 prevents foreign substances or moisture from entering the interior of the body 10, thereby preventing damage to parts and preventing safety accidents such as a short circuit.

1 is a front view showing an installation state showing the LED security light of the present invention

2 is a bottom perspective view of FIG.

3 is a schematic cross-sectional view of FIG.

4 is a cross-sectional view of the body

5 is a schematic perspective view showing a reflecting plate;

Figure 6 is a schematic partial side cross-sectional view of one LED

7 is a schematic perspective view of a heat sheet;

8 is a cross-sectional view of a light diffusing lens;

9 is a cross-sectional view of the dust cover

10 is a schematic front sectional view showing a state in which LED light is diffused by a light diffusion lens;

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

1: Shore 2: Socket

10: body 11: storage space

12: second step 13: second step

14: tapered surface 15: heat dissipation fin

16: heat dissipation groove 17: coupling portion

18: coupling groove 20: reflector

21: mounting portion 22: coupling hole

23: reflector 24: chrome layer

25: fixing part 26: LED

27: LED chip 28: heat dissipation sheet

29: heat sink 31: circuit board

32: heat sink 33: heat transfer unit

34: heat dissipation unit 36: light diffusion lens

37: seating portion 38: support portion

40: heat transfer cap 41: coupling protrusion

42: base 44: power supply

Claims (5)

The first step 12 is formed around the lower inner side, and the second step 13 having a smaller diameter is formed on the upper side of the first step 12, and the first step 12 and the second step ( 13) between the tapered surface 14 is formed to be extended toward the lower side, the radiation fins 15 are formed radially around the outer surface, the coupling groove 18 around the upper coupling portion 17 The body 10 is formed; A disk-shaped mounting portion 21 is provided, and a plurality of coupling holes 22 are formed in the mounting portion 21, and reflecting mirrors 23 are formed around the coupling holes 22 to reflect light emitted. It is formed, the reflector 23 is coated with a chromium layer 24 to increase the light reflectance, and the shape is expanded toward the lower side to be in close contact with the tapered surface 14 of the body 10 around the mounting portion 21 Reflector 20, the fixing portion 25 is formed; Each of the coupling holes 22 of the reflector plate 20 is coupled to each other, and a heat dissipation sheet 28 is attached to each of the LED chips 27 to transfer heat generated from the LED chips 27. The heat dissipation silicon 30 is coated on one surface of the sheet 28, and the heat dissipation silicon 30 includes LEDs 26 having heat dissipation plates 29 attached thereto to dissipate heat transferred therefrom; A circuit board 31 provided on the mounting portion 21 of the reflecting plate 20 and connected to the plurality of LEDs 26 to control them; A heat sink circumferentially seated on the second step 13 of the body 10 and a bottom surface closely attached to the upper surface of the circuit board 31 to release heat transferred from the LEDs 26 to the circuit board 31. 32); The light diffusion lens 36, which is circumferentially seated on the first step 12 of the body 10, presses and supports the fixing part 25 of the reflector 20, and diffuses the light emitted from the LEDs 26 to the outside. ; An insulating cap 40 having a coupling protrusion 41 formed around an inner circumference thereof so that the lower end thereof is coupled to the coupling portion 17 of the body 10 and is seated in the coupling groove 18 of the coupling portion 17; A base 42 having a lower portion coupled to an upper circumference of the insulating cap 40 and coupled to a socket 2 such as an LED security light; A power supply device 44 installed in the storage space 11 inside the body 10 and electrically connected to the base 42 and the circuit board 31 to supply power to the circuit board 31; LED security light. The heat dissipation fin 15 of the body 10, LED security light, characterized in that the heat dissipation grooves 16 are formed to reduce the overall weight of the body (10) and increase the contact space between the heat dissipation fins (15) and the heat dissipation space around it. The method of claim 1, wherein the heat sink 32, The heat transfer part 33 which is in contact with the upper surface of the circuit board 31 and transmits heat of the LED 26 and the circuit board 31, and protrudes on the upper surface so as to be perpendicular to the upper surface of the heat transfer part 33. Made of heat dissipation parts 34, The heat dissipation part 34 is provided radially on the upper surface of the heat transfer part 33, and is formed spirally to induce the flow of heat and to reduce the frictional resistance between the heat and the heat dissipation part 34 during the flow of heat. LED security light, characterized in that. The method of claim 1, wherein the light diffusing lens 36, It is formed to have a convex curved lower side, the mounting portion 37 is formed at both ends to be seated on the first step 12 of the body 10, the high portion of the reflecting plate 20 on the mounting portion 37 LED security light, characterized in that the support portion 38 having a taper at the same angle as the fixing portion 25 protrudes so as to contact the taper surface 14 of the body 10 by pressing the government (25) outward. The method of claim 1, LED cover, characterized in that the dust cover 46 is coupled to the lower periphery of the body 10 and the periphery of the light diffusion lens 36 to prevent foreign substances from entering the interior.

Images