KR101778865B1 - LED lighting - Google Patents

LED lighting Download PDF

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Publication number
KR101778865B1
KR101778865B1 KR1020150190051A KR20150190051A KR101778865B1 KR 101778865 B1 KR101778865 B1 KR 101778865B1 KR 1020150190051 A KR1020150190051 A KR 1020150190051A KR 20150190051 A KR20150190051 A KR 20150190051A KR 101778865 B1 KR101778865 B1 KR 101778865B1
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KR
South Korea
Prior art keywords
heat sink
heat
central
guide
heat dissipation
Prior art date
Application number
KR1020150190051A
Other languages
Korean (ko)
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KR20170079454A (en
Inventor
최근창
Original Assignee
주식회사 루스테크놀로지
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Priority to KR1020150190051A priority Critical patent/KR101778865B1/en
Publication of KR20170079454A publication Critical patent/KR20170079454A/en
Application granted granted Critical
Publication of KR101778865B1 publication Critical patent/KR101778865B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/12—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by screwing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/02—Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/77—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • F21V29/89—Metals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2101/00—Point-like light sources
    • Y02B20/34—

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

A mounting plate (10) provided with an LED (11); And a heat sink (not shown) having a central heat dissipation unit 30 and a plurality of external heat dissipation units 40, which are divided and assembled, by being coupled to a back surface of the mounting plate 10 to radiate heat generated from the LED 11. [ 20); And a mounting bracket 60 attached to the skin complex 1 such as a ceiling or a wall mounted on the heat sink 20. The central heat sink 30 and the outer heat sink 20 of the heat sink 20, The heat dissipating portion 40 is formed by extrusion molding with aluminum and cut to a required length and used.

Description

LED lighting {LED lighting}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an LED lighting lamp, and more particularly, to an LED lighting lamp having a heat sink for radiating heat generated from the LED.

In general, a light emitting diode (LED) is a device that bonds a p-type semiconductor and an n-type semiconductor, and emits light while coupling electrons and holes at the junctions. Such an LED is used for home appliances, remote controllers, electric sign boards, and various automation devices because it can irradiate light with high efficiency at a low voltage, and has been applied to various lighting devices because of being environment friendly, long life and durability. On the other hand, due to the above-described characteristics of the LED, an illumination device such as an incandescent lamp, which is conventionally used, has been replaced with an illumination device using an LED.

The lighting device using such an LED is usually installed on a ceiling or the like to illuminate an indoor space. In this case, the LED is manufactured by a surface mount device (SMD) method for directly mounting on a printed circuit board (PCB), and a plurality of such LED devices are arranged and arranged in the PCB do. In addition, the PCB is mounted on a body of a predetermined shape and installed in a lamp case. As the performance of the LED element is improved, high-temperature heat is emitted on the PCB.

However, since this high-temperature heat lowers the light-emitting performance and lifespan of the LED element, a separate heat-dissipating device must be provided. Accordingly, the lighting device using the LED is provided with a heat sink having a plurality of heat dissipation fins formed integrally on the back surface of the PCB, so that the heat emitted from the LED device can be quickly discharged.

However, since the above-described heat sink is manufactured by die-casting aluminum, the manufacturing cost is relatively high, and the thickness of the radiating fin of the heat sink manufactured by this manufacturing method is not as thin as the film. There is a problem that the heat dissipation fin has a limited heat dissipation area in the same space and thus has a limitation in quickly releasing heat.

Korean Patent Publication No. 10-2010-0127971

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide an LED lighting device having improved heat radiation efficiency while improving manufacturing convenience and installation convenience, So that it can be easily installed using a bracket of the LED lighting lamp.

According to an aspect of the present invention, there is provided an LED lighting device comprising: a mounting plate (10) provided with an LED (11); And a heat sink (not shown) having a central heat dissipation unit 30 and a plurality of external heat dissipation units 40, which are divided and assembled, by being coupled to a back surface of the mounting plate 10 to radiate heat generated from the LED 11. [ 20); And a mounting bracket 60 mounted on the heat sink 20 and installed in a skin complex 1 such as a ceiling or a wall surface. The central heat dissipation portion 30 of the heat sink 20 is vertically A plurality of central radiating fins 32 projecting in a radial direction from the circumferential surface of the center tube 31 and extending upward and downward and a plurality of central radiating fins 32 extending radially from the circumferential surface of the center tube 31, And a plurality of guide grooves 35 extending upward and downward or an edge tube 34 having guide protrusions spaced apart in the circumferential direction are formed on the peripheral surface of the heat sink 20. The outer heat dissipation portion 40 The main plate 41 and the main plate 41 are formed in a circular arc shape to surround the central heat dissipation part 30. The main plates 41 and 42 protrude from the inner surface of the main plates 41 and 42, The guide protrusion 44 or the guide groove slidably engaged with the guide protrusion of the guide groove 35 of the guide groove 30, A plurality of outwardly projecting fins 46 projecting radially outward from the outer surface of the main plates 41 and 42 and extending upward and downward and spaced apart from each other, A plurality of heat dissipation cover fins 47 extending toward the front ends of the adjacent outwardly protruding fins 46 on the both sides from the front ends of the outwardly protruding fins 46, And a guide rail 48a on which a fixing piece 70 for mounting the mounting bracket 60 is slidably and slidably mounted so that the central heat dissipation part 30 of the heat sink 20 and the outer heat dissipation part (40) is extruded with aluminum and cut to a desired length and used.

According to another aspect of the present invention, both ends of the main plates 41 and 42 of the outer heat dissipating unit 40 are slidably engaged with the ends of the main plates 41 and 42 of the adjacent outer heat dissipating unit 40 And an engaging projection 41a and an engaging groove 41b are formed.

According to another aspect of the present invention, the guide protrusion of the central heat dissipating unit 30 and the engaging protrusion 41a of the guide protrusion 44 of the outer heat dissipating unit 40 or the outer heat dissipating unit 40 are provided with the mounting plate 10 Shaped fixing grooves 44a and 41c are formed so that fixing bolts 91 for fixing the fixing bolts 91 are fastened.

As described above, according to the present invention, since the heat sink 20 is divided into the central heat dissipation unit 30 and the plurality of external heat dissipation units 40, maintenance and replacement of only the damaged part can be performed easily, . In addition, since the heat sink 20 is divided and assembled into a plurality of bodies, the heat sink 20 can be manufactured by extrusion molding and cut to a required length, compared to a conventional die sinking method. Ease of installation, ease of manufacture, cost savings and increased productivity. A guide rail 48a for positioning the attachment bracket 60 or an accessory such as a handle on the outer heat radiation portion 40 of the heat sink 20 and a fixing bolt Preventing protrusions 47b and 48b for preventing rotation of the polygonal head portion 71a of the polygonal tube 71 are provided so that the heat dissipation effect is enhanced and the maintenance and replacement are easy and the installation is simple and further, The mounting bracket 60 can be fixed to the heat sink 20 at a proper position by sliding the mounting bracket 60 at a proper length. This improves installation convenience and facilitates installation of the accessory without any assembly parts. 10) Since it can easily decorate the appearance of the appearance, it is possible to decorate the interior space more effectively by using the illumination lamp without installing additional ornaments, thereby reducing the interior effect There. The sharp tip ends of the outward projecting pins 46 are prevented from being exposed by the plurality of heat radiating cover fins 47 extending in the circumferential direction on the outermost side of the outer heat radiation portion 40 of the heat sink 20, But the heat dissipation effect is further improved and safety is improved.

Since the plurality of outer heat dissipation units 40 are coupled to the central heat dissipation unit 30 and the adjacent outer heat dissipation units 40 are slidably engaged with each other, the assembled heat sink 20 is structurally more rigid Stability is improved. On the other hand, when the heat sink 20 is extruded, the bolts 91 for mounting the mounting plate 10 and the reflector 50 are extruded so as to integrally form the engagement grooves 44a, The mounting plate 10 and the bolt 91 for fixing the reflector 50 are not required, so that the number of parts is reduced and the assembly is simplified.

1 is a perspective view showing an LED lighting lamp according to an embodiment of the present invention;
2 is an exploded perspective view of the above-
3 is an exploded perspective view of the heat sink of the above-
4 is a plan view of the heat sink of the above-
5 is a side sectional view of the LED illumination lamp of the above-
FIG. 6 is a plan view and a side view showing the engaging state of the fixing member of the embodiment
7 is a plan view showing a heat sink of another embodiment of the LED lighting lamp according to the present invention

The objects, features and advantages of the present invention will become more apparent from the following detailed description. Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 to 6 are views showing an LED lighting lamp according to an embodiment of the present invention. As shown in the figure, the LED illumination lamp according to the embodiment of the present invention includes a mounting plate 10 provided with an LED 11, A reflector 50 mounted on the front edge of the mounting plate 10 or the heat sink 20 and a skin complex 1 such as a ceiling or a wall mounted on the heat sink 20. The heat sink 20, And a fixing member 70 for fixing the mounting bracket 60 to the heat sink 20. The mounting bracket 60 is provided on the mounting bracket 60. [

The mounting plate 10 is provided with a plurality of LEDs 11 on its front surface and the LEDs 11 are mounted on the mounting plate 10 in a circuit. The mounting plate 10 is made of a circular plate as shown in FIG.

The heat sink 20 is installed on the rear surface of the mounting plate 10 to dissipate the heat radiated from the LED 11 so that the central heat dissipation unit 30 and the plurality of outer heat dissipation units 40 can be divided and assembled . At this time, the central heat dissipation part 30 and the outer heat dissipation part 40 are extrusion-molded with aluminum, and cut into a size required for an illumination lamp.

The central radiator 30 includes a center tube 31 extending vertically and having an open top and a bottom and a plurality of central radiating fins 32 protruding radially from the circumferential surface of the center tube 31, And an edge tube (34) connecting the distal ends of the central radiating fins (32) in a circular shape.

At this time, a plurality of guide grooves 35 or guide protrusions, which are vertically extended, are formed on the circumferential surface of the edge tube 34. In the illustrated embodiment, guide grooves 35 having a C- . The guide groove 35 is formed at the front end of the central radiating fin 32 and the cylinder 34 is formed to connect the circumferential portion of the guide groove 35. The central radiating fin (32) is formed in a plate shape, and a plurality of projections (33) projecting vertically are formed on both sides.

The plurality of outer heat dissipating units 40 includes main plates 41 and 42, a connecting rib 43, an outward protruding pin 46, a heat radiating cover pin 47, a guide pin 48, and rotation preventing protrusions 47b, 48b. First, the main plates 41 and 42 are formed in an arc shape so as to surround the edge tube 34 of the central heat dissipation part 30. In the illustrated embodiment, the main plates 41 and 42 are circular concentric circular arc shapes, And the first and second main plates 41 and 42 are spaced apart by the spacer 45. The first and second main plates 41 and 42 are made of the first and second main plates 41 and 42, At this time, there are two spacers 45, each of which has a plate shape extending in the radial direction.

The connection ribs 43 protrude radially inward from the inner surface of the first main plate 41 located radially inward and extend from the spacer 45. At this time, a guide groove (35) of the central radiating portion (30) or a guide protrusion (44) or a guide groove slidably coupled to the guide protrusion is formed at the tip of the connection rib (43). In the illustrated embodiment, a guide protrusion 44 is formed at the tip of the connecting rib 43. The guide protrusion 44 is provided with a fastening groove 44a for fastening the bolt 91 for fixing the mounting plate 10 Is formed in the guide projection 44. It is exemplified that the body of the guide projection 44 has a C-shaped cross section.

The outwardly projecting pins 46 are radially outwardly protruded from the outer surface of the second main plate 42 and a plurality of outwardly projecting pins 46 are formed along the circumferential direction of the second main plate 42 . At this time, the two outward projecting pins 46 extend from the spacer 45, and in the illustrated embodiment, two outward projecting pins 46 46 are provided and one outwardly projecting pin 46 is provided on the outer side.

On the other hand, the heat dissipation cover pin 47 extends from the tip of each outward projecting pin 46 toward the tip of the adjacent outward projecting pin 46 on both sides. At this time, the respective heat dissipation cover fins 47 are formed so as to be spaced apart from each other to form slits 47a extending vertically.

Meanwhile, the guide pin 48 protrudes in close proximity to each other on opposite sides of the outward projecting fins 46 adjacent to each other, and is radially spaced apart from the heat radiating cover pin 47, Thereby forming guide rails 48a that are coupled to each other. The guide rail 48a has a pair of outwardly projecting fins 46 located at the center of the second main plate 42 and has openings facing each other.
4, the rotation prevention protrusions 47b and 48b protrude from the inside of the guide rail 48a to prevent rotation of the fixing member 70. The rotation of the heat dissipation cover pin 47 and the guide pin 48, In the direction of approaching each other.

On the other hand, at both ends of the first main plate 41 of each of the outer heat dissipation units 40, an engagement groove 41a and an engagement protrusion 41b are formed which are connected to the adjacent outer heat dissipation unit 40. At this time, only the coupling grooves 41a may be provided at both ends of the first main plate 42, or only the coupling projections 41b may be provided. A coupling groove 41c is formed in the coupling protrusion 41b to fasten the bolt 91 for fixing the mounting plate 10. In the illustrated embodiment, the coupling protrusion 41b itself has an end C shape . On the other hand, a fixing groove 49 having a C-shaped cross section is formed at a portion where the base end of the outwardly projecting pin 46 extending from the second main plate 42 and the spacer 45 and the second main plate 42 are in contact with each other .

The reflector 50 is installed at the edge of the mounting plate 10 to reflect the light emitted from the LED 11 forward. In the illustrated embodiment, the reflector 50 is formed to have an expanded diameter at the edge of the fixing plate 51 mounted on one side of the heat sink 20, and the fixing groove 49 As shown in Fig. A light projecting cover 90 for protecting the mounting plate 10 and the mounting plate 10 is provided on the fixing plate 51. The bolt 91 penetrates through the fixing plate 51 and is fastened to the fixing groove 49 do.

The mounting bracket 60 is for mounting the heat sink 20 on the skin complex 1 such as a ceiling or a wall surface and has a metal strip member bent into a substantially diagonal shape so that both side straight portions of the heat sink 20, Respectively.
The fixing member 70 fixes both side linear portions of the mounting bracket 60 to the outer heat radiation portion 40 of the heat sink 20. [ The fixing member 70 includes a head portion 71a having a polygonal shape slidable along the guide rail 48a formed in the outer heat radiation portion 40 and a screw portion 47a projecting to the outside through the slit 47a of the outer heat radiation portion 40. [ And a nut 72 screwed to the threaded portion 71b of the fixing bolt 71. The fixing bolt 71 includes a fixing bolt 71a, Accordingly, by fastening the nut 72, the head portion 71a of the fixing bolt 71 is pressed and fixed to the inner wall of the guide rail 48a. 6, the polygonal head portion 71a of the fixing bolt 71 is caught by the both-side rotation preventing projections 47b and 48b of the outer heat radiating portion 40 to prevent rotation, 72), the mounting bracket 60 can be fixed. The fixing bracket 60 is fixed to the heat sink 20 when the length of the heat sink 20 cut by the extrusion molding is different from the length of the heat sink 20. In the present invention, It is possible to easily fix the mounting bracket 60 to an appropriate position by inserting the mounting bracket 60 into the guide rail 48a of the outer heat sink 40 and sliding the guide rail 48a in a state of tightening the nut 72, . The mounting plate 10 and the reflector 50 are installed on one side of the heat sink 20 and the finishing plate 81 for fixing the inverter 80 is installed on the other side. Reference numeral 36 denotes a fastening groove to which the mounting plate mounting bolt 91 is fastened.

7 is a plan view of a heat sink of an LED lighting lamp according to another embodiment of the present invention. As shown in the figure, a wrinkle (w) is formed in the central heat dissipation part 30 and the outer heat dissipation part 40 of the heat sink 20, thereby further enhancing the heat dissipation effect. That is, the corrugations w are formed on the inner and outer surfaces of the center pipe 31, the central radiating fin 32 and the edge pipe 34 of the central radiating portion 30, Wrinkles w may be formed on the heat dissipating ribs 41 and 42, the connecting ribs 43 and the outward protruding fins 46 and the wrinkles w may be formed on the heat dissipating cover pins 47 as the case may be.

The LED illumination lamp according to the embodiments of the present invention configured as described above is divided into the central heat dissipation unit 30 and the plurality of external heat dissipation units 40 so that only the damaged part can be maintained and replaced It is easy to maintain and replace. In addition, since the heat sink 20 is divided and assembled into a plurality of bodies, the heat sink 20 can be manufactured through extrusion molding compared to die casting in order to manufacture the conventional heat sink as a single body. have. A guide rail 48a for mounting the mounting bracket 60 or an accessory such as a handle or decorative piece to the outer heat radiation portion 40 of the heat sink 20 and a head portion The rotation preventing protrusions 47b and 48b are provided to prevent the rotation of the first and second rotating bodies 71a and 71a so that the heat radiating effect is enhanced and the maintenance and replacement is easy. The sharp tip ends of the outward projecting pins 46 are prevented from being exposed by the plurality of heat radiating cover fins 47 extending in the circumferential direction on the outermost side of the outer heat radiation portion 40 of the heat sink 20, The safety is improved and the heat radiation effect is further improved.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. It will be apparent to those of ordinary skill in the art.

10: mounting plate 20: heat sink
30: central radiator 40: outer radiator
50: Reflector 60: Mounting bracket
70: Fixing member 80: Inverter
90: Floodlight cover

Claims (3)

A mounting plate (10) provided with an LED (11);
And a heat sink (not shown) having a central heat dissipation unit 30 and a plurality of external heat dissipation units 40, which are divided and assembled, by being coupled to a back surface of the mounting plate 10 to radiate heat generated from the LED 11. [ 20);
A mounting bracket 60 attached to the heat sink 20 and installed on the skin complex 1 such as a ceiling or a wall, or an accessory; And
A fixing bolt 71 having a polygonal head portion 71a slidably coupling the mounting bracket 60 or the accessory to the heat sink 20 and a fixing bolt 71 And a nut 72 for press-fixing the head portion 71a of the heat sink 20 to the heat sink 20,
The central heat dissipation part (30) of the heat sink (20)
A plurality of central radiating fins 32 protruding radially from the circumferential surface of the center tube 31 and extending upward and downward and a plurality of central radiating fins 32 extending upward and downward, And a plurality of guide grooves (35) extending vertically on the peripheral surface or an edge tube (34) having guide protrusions spaced apart along the circumferential direction,
The outer heat radiation portion (40) of the heat sink (20)
Main plates 41 and 42 formed in an arc shape to surround the central heat dissipation part 30;
A guide protrusion 44 or a guide protrusion 44 protruding from the inner surface of the main plates 41 and 42 and extending vertically and slidably coupled to the guide groove 35 of the central radiator 30 or the guide protrusion, A plurality of connection ribs (43) formed therein;
A plurality of outwardly projecting pins 46 projecting radially outward from outer surfaces of the main plates 41 and 42 and extending upward and downward and spaced apart from each other;
A plurality of heat dissipation cover fins 47 extending from the ends of the outwardly projecting fins 46 toward the ends of the adjacent outwardly projecting fins 46 on both sides of the outwardly projecting fins 46 and extending to form slits 47a, ;
The protruding fins 46 adjacent to each other protrude from each other on the side opposite to each other and are radially spaced apart from the radiating cover pin 47 so as to be separated from the head portion of the fixing bolt 71 of the fixing member 70 A guide pin (48) forming a guide rail (48a) slidably engaged with the guide rail (71a); And
The guide rail 48a protrudes in the opposite direction of the heat radiating cover pin 47 and the guide pin 48 to rotate the head portion 71a of the fixing bolt 71 of the fixing member 70 Rotation preventing protrusions 47b and 48b,
Wherein the central heat dissipation part (30) and the outer heat dissipation part (40) of the heat sink (20) are formed by extrusion molding with aluminum and cut to a required length. The heat sink according to claim 1, wherein both ends of the main plates (41, 42) of the outer heat sink (40) (41a) and an engaging groove (41b) are formed in the LED lighting fixture. The fixing device according to claim 1 or 2, wherein the guide protrusion of the central heat dissipating part (30) and the engaging protrusion (41a) of the guide protrusion (44) or the outer heat dissipating part (40) of the outer heat dissipating part (40) (44a, 41c) having a C-shaped cross section is formed so that the fixing bolts (91) for fixing the LEDs (10) are fastened.
KR1020150190051A 2015-12-30 2015-12-30 LED lighting KR101778865B1 (en)

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KR1020150190051A KR101778865B1 (en) 2015-12-30 2015-12-30 LED lighting

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Application Number Priority Date Filing Date Title
KR1020150190051A KR101778865B1 (en) 2015-12-30 2015-12-30 LED lighting

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KR101778865B1 true KR101778865B1 (en) 2017-09-14

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102120141B1 (en) * 2019-08-28 2020-06-17 주식회사 금오산업 Heat sink for lighting apparatus and lighting apparatus using the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101391584B1 (en) 2013-03-19 2014-05-27 주식회사 남영전구 Led flood lighting

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101391584B1 (en) 2013-03-19 2014-05-27 주식회사 남영전구 Led flood lighting

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102120141B1 (en) * 2019-08-28 2020-06-17 주식회사 금오산업 Heat sink for lighting apparatus and lighting apparatus using the same

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