KR20170088051A - heat dissipation heat sink for LED lighting - Google Patents

heat dissipation heat sink for LED lighting Download PDF

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Publication number
KR20170088051A
KR20170088051A KR1020160007917A KR20160007917A KR20170088051A KR 20170088051 A KR20170088051 A KR 20170088051A KR 1020160007917 A KR1020160007917 A KR 1020160007917A KR 20160007917 A KR20160007917 A KR 20160007917A KR 20170088051 A KR20170088051 A KR 20170088051A
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KR
South Korea
Prior art keywords
heat
plate
radiating fins
radiating
base
Prior art date
Application number
KR1020160007917A
Other languages
Korean (ko)
Inventor
강희균
Original Assignee
주식회사 청남아이티
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Application filed by 주식회사 청남아이티 filed Critical 주식회사 청남아이티
Priority to KR1020160007917A priority Critical patent/KR20170088051A/en
Publication of KR20170088051A publication Critical patent/KR20170088051A/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
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • 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
    • 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
    • F21V29/004—
    • 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
    • F21V29/85—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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

A heat-dissipating heat sink for an LED lighting lamp is disclosed in the present invention. According to an embodiment of the present invention, there is provided a heat dissipation heat sink for an LED illumination light, comprising: a base portion to be in contact with an upper side of the heat generating element so that heat of the heat generating element is conducted; A shaft portion coupled to a center portion on an upper side of the base portion and provided in an elongated shape upward in the longitudinal direction from the base portion; A plurality of radiating fins for radiating heat generated from the heating element are radially provided to surround the outside of the shaft portion; And a plate portion provided to press the heat radiation portion in the direction of the base portion when the heat radiation portion is seated on the upper side of the heat radiation portion. Thereby, the plate portion has the effect of maximizing heat dissipation of the heat generated by the heat generating element by pressing the heat dissipating portion in the direction of the base portion for conducting the heat of the heat generating element. Further, the structure in which the plate portion presses the heat-radiating portion through the plurality of fixing members is made rigid so that heat dissipation of heat generated in the heat-radiating portion can be maximized. Further, the plurality of radiating fins of the heat dissipating unit are spaced apart from each other through the plurality of supporting rods, and heat generated from the heat generating body is generated in a state where the heat dissipating unit is firmly coupled.

Description

[0001] The present invention relates to a heat sink for LED lighting,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a heat sink for LED lighting, and more particularly, to a heat sink for maximizing heat dissipation by pressing a plurality of heat sink fins toward a heat emitting body where heat is generated.

Generally, a heat sink refers to a metal plate that discharges the heat inside the product to the outside using heat conduction phenomenon such as radiation or convection.

General lighting devices such as fluorescent lamps and incandescent lamps generate heat and light together. However, in the case of LEDs, the light is generated in the forward direction, but the heat is generated in the backward direction and directed into the module.

If the heat is not discharged to the outside, the module remains inside the module. This causes breakage and deformation of the LED chip, the PCB, and other components, thereby reducing the lifetime of the LED product.

As a result, the heat is the biggest factor that leads to the short life of the LED, and it is the role of the heat sink so that the heat inside the product can be quickly discharged to the outside.

The higher the thermal conductivity of the heat sink, the more effective it is to use the copper plate. However, since the price of the copper plate is very high, the aluminum material is often used. Also, since the larger the contact area with the external space is, the higher the heat dissipation efficiency, the larger the area of the heat sink is, the better. Thus, the shape of the heat sink is formed to include irregularities.

As disclosed in Korean Utility Model Registration No. 20-0472671 (registered on May 4, 2014) related to the above-mentioned heat sink, a heat sink is formed by bending a metal plate, and a plurality of elevations forming a radial phase by continuous bending And the heat sinks are provided on the upper side of the circuit board on which the LEDs are mounted and are closely attached to the upper side of the circuit board through the plurality of metal connection members. The heat radiating plate is not firmly coupled to the circuit board and the pressing action of the heat radiating plate to closely adhere to the circuit board is insufficient so that the heat radiating plate dissipates the heat generated from the LED There is a problem in that it can not be maximized.

Prior Art Document 0001 Registration Utility Model Publication No. 20-0472671

It is an object of the present invention to provide a heat sink for maximizing heat dissipation of heat generated in a heating element by pressing a heat dissipating portion in a direction of a base portion for allowing heat of a heating element to be conducted, will be.

 And a structure in which the plate portion presses the plurality of radiating fins of the heat-radiating portion through the plurality of fixing members is made rigid.

Also, the present invention provides a heat sink that generates heat dissipation in a state where a plurality of radiating fins of a heat dissipating unit, which is pressed from a plate portion, are firmly coupled to each other while a distance between mutually spaced apart support fingers is maintained.

According to an aspect of the present invention, there is provided a heat dissipating heat sink for an LED lighting fixture, comprising: a base portion contacting an upper side of the heat generating element to conduct heat of the heat generating element; A shaft portion coupled to a center portion on an upper side of the base portion and provided in an elongated shape upward in the longitudinal direction from the base portion; A plurality of radiating fins for radiating heat generated from the heating element are radially provided to surround the outside of the shaft portion; And a plate portion provided to press the heat dissipation portion in the direction of the base portion when the heat dissipation portion is seated on the upper side.

The plate portion is provided with a protruding member at a lower end in the longitudinal direction so as to be fitted on the upper side of the shaft portion and a pressing member which surrounds the protruding member at a stop in the longitudinal direction is provided, A pressing plate having a screw hole formed therethrough; A center plate having a receiving groove formed at a center thereof so that the pressing plate is received in the shaft, and a plurality of screw holes formed at a periphery thereof; And a plurality of screw holes formed on one side of the center plate so as to correspond to a plurality of screw holes on the center plate, the upper side is seated on the periphery of the center plate, and a plurality of screw holes are formed on the other side, And a side plate.

The plurality of fixing members may be housed in the screw holes of the pressing plate so that the pressing force is applied to the pressing plate, A first fixing member for coupling the lower side of the plate to the upper side of the shaft portion; A second fixing member for simultaneously receiving a plurality of screw holes of the center plate and a plurality of screw holes on one side of the side plate so that one side of the side plate is coupled to the upper side of the periphery of the center plate; And a third fixing member accommodated in a plurality of screw holes on the other side of the side plate so as to penetrate both the heat dissipation unit and the base unit and to connect the other side of the side plate to the upper side of the plurality of radiating fins .

The heat dissipating unit may include a lower support for supporting the plurality of radiating fins so as to be spaced apart from each other, A top support for supporting the plurality of radiating fins so that the plurality of radiating fins are spaced apart from each other and being provided horizontally with the base portion at an upper end of the plurality of radiating fins, And a stop support protruding horizontally with respect to the base part at the stop of either the front surface or the rear surface of the plurality of radiating fins and spaced apart from the plurality of radiating fins.

The third fixing member may be formed of a metal material having a high thermal conductivity such that the heat generated from the heating element is conducted to the plurality of radiating fins and when the lower supporting rods of the radiating portion penetrate the circumferential portion of the base portion So that heat can be transmitted to the plurality of radiating fins through the intervening support.

And the lower end support includes a lower end coupling groove for coupling with the adjacent radiating fin; And a lower coupling protrusion for fitting into the lower coupling groove, wherein the upper support includes an upper coupling groove for coupling with the adjacent radiating fin; And an upper coupling protrusion for fitting into the upper coupling groove, wherein the intermediate supporting frame is bent at an end contacting with the adjacent cooling fins so that a distance between the adjacent cooling fins is maintained, .

The heat dissipating unit may further include a heat dissipating through hole formed on the outer side and the lower side of the heat dissipating unit so as to allow the outside air to flow for heat dissipation. Base through hole; And a fixing pin provided at a central portion and coupled with a lower side of the shaft portion; And an auxiliary pin.

Thereby, the plate portion has the effect of maximizing heat dissipation of the heat generated by the heat generating element by pressing the heat dissipating portion in the direction of the base portion for conducting the heat of the heat generating element.

Further, the structure in which the plate portion presses the heat-radiating portion through the plurality of fixing members is made rigid so that heat dissipation of heat generated in the heat-radiating portion can be maximized.

Further, the plurality of radiating fins of the heat dissipating unit are spaced apart from each other through the plurality of supporting rods, and heat generated from the heat generating body is generated in a state where the heat dissipating unit is firmly coupled.

1 is a perspective view of an LED heat sink according to an embodiment of the present invention;
Figure 2 illustrates a base according to one embodiment of the present invention.
3 is a view illustrating a heat dissipating unit according to an embodiment of the present invention.
4 is an exploded perspective view of an LED heat sink according to an embodiment of the present invention.
5 is a sectional view of an LED heat sink according to an embodiment of the present invention;
6 is a perspective view of an LED heat sink according to another embodiment of the present invention;
7 is an exploded perspective view of an LED heat sink according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below are provided by way of example so that those skilled in the art will be able to fully understand the spirit of the present invention. The present invention is not limited to the embodiments described below and may be embodied in other forms. In order to clearly explain the present invention, parts not related to the description are omitted from the drawings, and the width, length, thickness, etc. of the components may be exaggerated for convenience. Like reference numerals refer to like elements throughout the specification.

The heat dissipation heat sink for an LED illumination lamp according to an embodiment of the present invention includes a heat dissipation unit 100 formed of a plurality of heat dissipation fins 210 and a plate unit 400 provided on the upper side to provide a bolt and a nut Through which heat can be dissipated, and an oxidation coating process can be performed, thereby reducing the production cost and maximizing the heat dissipation of heat.

1 is a perspective view of an LED heat sink according to an embodiment of the present invention.

1, a base unit 100, a heat dissipation unit 200, a shaft unit 300, and a plate unit (not shown) are connected to one side of the LED illuminator to conduct heat generated from the LEDs 400).

The base unit 100 is provided between the heat generating unit and the heat dissipating unit 200 to transmit heat to the heat dissipating unit 200 provided for heat dissipation of heat generated in the heat emitting unit such as an LED illuminating unit.

The heat dissipating unit 200 includes a plurality of heat dissipating fins 210 that are vertically erected and provided radially on the upper circumference of the base unit 100. The heat dissipating unit 200 includes a base 100, Thereby dissipating heat of the heat-generating element to be delivered.

The shaft portion 300 is provided in the form of a shaft which is elongated in the longitudinal direction so that the heat dissipating portion 200 is fixed to the upper side of the base portion 100, And is provided at the central portion on the upper side of the base portion 100 so as to engage with the inside which is the direction of the center portion of the upper side.

The plate portion 400 is provided to press the heat dissipating portion 200 in the direction of the base portion 100 to maximize the heat dissipation of the heat generated in the heat emitting body. The plate portion 400 includes a plurality of fixing members 411, The plurality of radiating fins 210 are pressed in the direction of the base portion 100. [

2 is a view illustrating a base unit according to an embodiment of the present invention.

2, the base unit 100 is provided between a heat emitting body and a heat dissipating unit for transmitting heat to a heat dissipating unit 200 provided for heat dissipation of heat generated in a heat emitting body such as an LED illuminating body A base hole 101, an auxiliary pin 110, and a fixing pin 120.

The base through holes 101 are formed at regular intervals along the circumference of the base 100 so that the heat dissipation effect can be obtained together with the heat dissipation holes 211 of the heat dissipation unit 200 to be described later.

A plurality of auxiliary pins 110 are provided to assist the stationary pins 120. The auxiliary pins 110 are accommodated in the auxiliary pin receiving grooves 111 formed in the central portion of the shaft portion 300, So that the coupling structure of the unit 300 is made rigid.

The fixing pin 120 is provided at the central portion of the base portion 100 and is received through the fixing pin receiving groove 121 formed at the center portion of the shaft portion 300, So as to be firm.

The fixing pin 120 is coupled to the lower end of a screw hole 301, which will be described later, provided in the shaft portion 300 with an inner space on an upper side with a smaller diameter, and surrounds the outer side of the lower end.

3 is a view illustrating a heat dissipation unit according to an embodiment of the present invention.

3, the heat dissipating unit 200 dissipates heat generated from the heat generating element, and a plurality of heat dissipation fins vertically standing from the upper side of the base 100 are maintained in a spaced- A lower support 220, an upper support 230, an intermediate support 240, and a vertical support 250.

The plurality of radiating fins 210 are radially coupled to the upper circumference of the base 100. The lower support 220 is coupled to the lower end of the base 210. The upper support 230 is coupled to the center of the upper end, A vertical support 250 is provided on the inner side of the plurality of radiating fins 210 in the direction of the center of the base 100 to contact the outer side of the shaft 300.

The plurality of heat dissipating fins 210 are formed with heat dissipating holes 211 at the upper and lower ends of the outer side so as to obtain a heat dissipation effect together with the base through holes 101 of the base 100.

The lower support 220 is provided at a lower end of the heat dissipating unit 200 in a horizontal direction parallel to the base 100 in order to increase the contact area with the outside air, The width of the outer side of the radiating fins 210 is increased so that the plurality of radiating fins 210 are spaced apart from each other so that the outside air can flow into the plurality of radiating fins 210. The lower coupling groove 221, 222).

The lower coupling groove 221 and the lower coupling protrusion 222 are formed on the lower coupling groove 221 and the lower coupling projection 222 of the lower coupling groove 221, (221) and the lower engaging projection (222) are fitted to each other.

For example, in order to maintain a distance between any one of the plurality of radiating fins 210 and the other one of the radiating fins 210-1, 210-2, And the lower coupling protrusion 222 provided on the other heat radiating fin 210-2 is fitted to the bent lower coupling groove 221 provided.

One of the radiating fins 210-1 is coupled to the other radiating fin 210-2 and the other radiating fin 210-2 is connected to another radiating fin 210-3 at a distance The lower coupling protrusion 222 provided in the other radiating fin 210-3 is fitted to the bent lower coupling groove 221 provided in the other radiating fin 210-2 .

Therefore, a plurality of radiating fins 210 are provided on the upper side of the base portion 100 in a radial shape surrounding the outer side of the shaft portion 300.

The upper support part 230 is provided at a central part of the upper end of the heat dissipating part 200 so as to protrude in a horizontal direction parallel to the base part 100. The side support plate 430, An upper end coupling groove 231 and an upper end coupling protrusion 232 for supporting a load applied by the side plate 430 and maintaining a distance between the plurality of radiating fins 210 .

The upper joining recess 231 and the upper joining protrusion 232 are formed in the upper end of the upper coupling groove 231 and the upper joining protrusion 232, The upper coupling protrusion 231 and the upper coupling protrusion 232 are fitted to each other.

For example, in order to maintain a distance between any one of the plurality of radiating fins 210 and the other one of the radiating fins 210-2, And the upper end coupling protrusion 232 provided in the other heat radiating fin 210-2 is fitted to the bent upper coupling groove 231. [

One of the radiating fins 210-1 is coupled to the other radiating fin 210-2 and the other radiating fin 210-2 is spaced apart from the other radiating fin 210-3 The upper coupling protrusion 232 provided in the other radiating fin 210-3 is fitted to the bent upper coupling groove 231 provided in the other radiating fin 210-2.

The break support rods 240 protrude in the horizontal direction parallel to the base portion 100 in the vicinity of the central portion of the break of the heat dissipating portion 200 and include a lower support rope 220 and an upper support rope 230, The heat dissipation fins 210 are provided so as to maintain mutually spaced distances.

In order to secure the structure in which the plurality of radiating fins 210 are spaced apart from each other by projecting in the horizontal direction parallel to the base portion 100 from the vicinity of the central portion of the break, Are provided in a bent form.

For example, in order to maintain a distance between any one of the plurality of radiating fins 210 and the other one of the radiating fins 210-1, 210-2, And the end of the interrupted supporter 240 is brought into contact with either the front surface or the rear surface of the other radiating fin 210-2.

One of the radiating fins 210-1 is coupled to the other radiating fin 210-2 and the other radiating fin 210-2 is connected to another radiating fin 210-3 at a distance The end of the stopping support 240 of the other one of the heat radiating fins 210-2 is provided so as to abut against either one of the front surface or the rear surface of the other heat radiating fin 210-3.

At this time, the abutting support base 240 is bent in the horizontal direction parallel to the base 100 so that the abutting support base 240 is in contact with any one of the front surface or the rear surface of the plurality of the heat dissipation fins 210, So that mutually spaced distances of the radiating fins 210 are maintained firmly.

In order to store the intermittent support rods 240 in the plurality of radiating fins 210 in the horizontal direction parallel to the base portion 100 excluding the bent ends thereof, A receiving groove 241 for receiving one end of the receiving groove 240 is formed.

That is, the stop support rods 240 may be provided horizontally parallel to the plurality of radiating fins 210 by being rotated about one end coupled to the inside of the receiving grooves 241, or one end of the stop support rods 240 may be inserted into the receiving grooves 241, but is provided in a state of being firmly fixed without being rotated.

The vertical support 250 is provided on the inner side of the plurality of radiating fins 210 which abuts against the outer side of the shaft portion 300 and is bent in the horizontal direction parallel to the base portion 100 to be in contact with the shaft portion 300 The plurality of radiating fins 210 are provided so as to firmly surround the outer side of the shaft portion 300. As shown in FIG.

FIG. 4 is an exploded perspective view of an LED heat sink according to an embodiment of the present invention, and FIG. 5 is a sectional view of an LED heat sink according to an embodiment of the present invention.

4 and 5, the plate portion 400 presses the heat discharging portion 200 in the direction of the base portion 100 to heat the heat generated in the heat generating body to be maximized in the plurality of heat dissipating fins 210 And includes a pressing plate 410, a center plate 420, and a plurality of side plates 430.

 The pressing plate 410 is provided to press the upper side of the center plate 420 which is seated on the upper side of the plurality of the radiating fins 210. The pressing plate 410 includes a first fixing member 411, a screw hole 412, A projection 413, a projection member 414, and a pressing member 415.

The first fixing member 411 has a screw hole 412 penetrating the center of the pressing plate 410 in the longitudinal direction so that the lower side of the pressing plate 410 is coupled to the upper side of the shaft portion 300, As shown in Fig.

At this time, the shaft portion 300 is provided with an internal space at the center of the shaft portion 300 in order to engage with the pressing plate 410 through the first fixing member 411 (not shown) A screw hole 301 penetrating in the longitudinal direction is provided in the central portion so that the first fixing member 411 penetrates.

The first fixing member 411 penetrates both the screw hole 412 of the pressing plate 410 and the screw hole 301 of the shaft portion 300 so that the pressing plate 410 and the shaft portion 300, .

When the lower end of the first fixing member 411 passing through the shaft portion 300 passes through the center portion of the base portion 100, the inner space of the fixing pin 220 passing through the center portion of the base portion 100, As shown in Fig.

At this time, the screw hole 301 of the shaft portion 300 is received in the upper side of the small diameter of the fixing pin 120, so that the first fixing member 411 contacts the The lower end of the first fixing member is received in the fixing pin 120 when the hole 412 passes through the screw hole 301 of the shaft portion 300.

The nut 413 is provided at the central portion of the pressing member 415 on the upper side of the pressing plate 410 so as to penetrate the nut 413 in order to firmly fix the pressing plate 410 to the shaft portion 300. [ The first fixing member 411 is fixed in the form of wrapping the upper end of the first fixing member 411.

The protruding member 414 corresponds to the lower side of the pressing plate 410 and is provided for fitting the pressing plate 410 in a state in which the pressing plate 410 is in close contact with the inside of the inner space of the shaft portion 300.

The fastening member 302 surrounding the outer side of the projecting member 414 is engaged with the shaft portion 300 so as to fix the state in which the projecting member 414 is in close contact with the inside of the inner space of the shaft portion 300. [ As shown in Fig.

The pressing member 415 corresponds to the stop of the pressing plate 410 so that the bottom surface presses the central portion on the upper side of the center plate 420 so that the center plate 420 is seated on the upper side of the plurality of the radiating fins 210 .

The center plate 420 is mounted on the upper side of the plurality of radiating fins 210 through the pressing plate 410 so that the plurality of radiating fins 210 are pressed in the direction of the base 100, A screw hole 422, and a second fixing member 423.

The receiving groove 421 allows the protruding member 414 of the pressing plate 410 to be received in the longitudinal direction and fit on the upper side of the shaft portion 300 so that the bottom surface of the pressing plate 410 contacts the center plate 420, In the center of the center plate 420, so as to pressurize the center plate 420.

The screw holes 422 are formed in the periphery of the center plate 420 in such a manner that a plurality of side plates 430 are coupled to the upper side of the periphery of the center plate 420.

The second fixing member 423 includes a plurality of screw holes 422 and a plurality of protrusions 422 formed on one side of the side plate 430 to firmly engage the side plate 430 on the upper side of the center plate 420. [ 1 screw hole 431, as shown in Fig.

The center plate 420 is placed on the upper side of the plurality of radiating fins 210 so that the upper side of the center portion is pressed against the pressing plate 410 So that one side of the side plate 430 is pressed through the second fixing member 423 on the upper side of the peripheral portion.

One side of the side plate 430 is seated on the upper side of the periphery of the center plate 420 while the other side is seated on the upper side of the plurality of heat dissipation fins 210. The first side plate 431, A second fixing member 432, and a third fixing member 433.

The first screw hole 431 is formed in the second fixing member 423 when the side plate 430 is seated on the periphery of the center plate 420 and is positioned at a position corresponding to the screw holes 422 formed in plural, A plurality of side plates 430 are formed on one side of the side plate 430 so that the side plates 430 are coupled to the upper side of the periphery of the center plate 420.

The second screw hole 432 is formed in a side surface of the plurality of radiating fins 210 so that the side plate 430 is seated on the upper side of the plurality of radiating fins 210 to press the plurality of radiating fins 210 in the direction of the base 100. [ And a plurality of third fixing members 433 accommodated in the base plate 100 and passing through the periphery of the base 100 are accommodated.

The third fixing member 433 is accommodated in the second screw hole 432 and is longitudinally received at a distance between the plurality of radiating fins 210. The third fixing member 433 penetrates the periphery of the base portion 100, Is provided to press the upper side of the plurality of radiating fins (210).

When the third fixing member 433 penetrates both the base part 100 and the lower stage supporter 220 of the heat dissipating part 200, the outside of the third fixing member 433 is interrupted by the interruption of the heat dissipating part 200 And is in contact with one side of the support table 240.

The third fixing member 433 is made of a metal material and penetrates both the base part 100 and the lower stage supporter 220 of the heat dissipating part 200 so that the other side of the side plate 430 is connected to the plurality of radiating fins 210 The heat generated by the heat generating element provided under the base 100 is transferred to the plurality of heat dissipation fins 210 via the stop support 240.

FIG. 6 is a perspective view of an LED heat sink according to another embodiment of the present invention, and FIG. 7 is an exploded perspective view of an LED heat sink according to another embodiment of the present invention.

6 and 7, the base 100, the heat dissipation unit 200, the shaft unit 300, and the heat dissipation unit 300 are coupled to one side of the LED illumination unit to conduct heat generated from the LEDs, Plate portion 400 as shown in FIG.

In another embodiment of the present invention, unlike the embodiment of the present invention described with reference to FIGS. 1 to 5, in order to maintain a distance between the plurality of radiating fins 210, the lower supporting rods 220, And a top support 230 (not shown).

 The plate portion 400 of the other embodiment of the present invention is seated on the upper side of the plurality of radiating fins 210 to press the plurality of radiating fins 210 in the direction of the base portion 100, A pressing plate 410, and a center plate 420. [

The pressing plate 410 includes a first fixing member 411 (not shown) for engaging with the upper side of the shaft portion 300.

The center plate 420 includes a second fixing member 423 to fix the state of the upper surface of the plurality of radiating fins 210.

The second fixing member 423 may be formed of a metal such as the third fixing member 433 of the embodiment of the present invention and may include a base portion 100 and a heat dissipating portion 200, Not only the center plate 420 penetrates all of the lower support rods 220 and presses the upper side of the plurality of radiating fins 210 but also the heat generated in the lower side of the base portion 100 is discharged through the plurality of radiating fins 210, respectively.

Thereby, the plate portion has the effect of maximizing heat dissipation of the heat generated by the heat generating element by pressing the heat dissipating portion in the direction of the base portion for conducting the heat of the heat generating element.

Further, the structure in which the plate portion presses the heat-radiating portion through the plurality of fixing members is made rigid so that heat dissipation of heat generated in the heat-radiating portion can be maximized.

Further, the plurality of radiating fins of the heat dissipating unit are spaced apart from each other through the plurality of supporting rods, and heat generated from the heat generating body is generated in a state where the heat dissipating unit is firmly coupled.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the invention as defined by the appended claims. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

100: base portion 101: base through hole 110: auxiliary pin
111: auxiliary pin receiving groove 120: holding pin 121: holding pin receiving groove
200: heat dissipating unit 210: plural heat dissipating fins 211: heat dissipating through hole
220: lower support 221: lower engaging groove 222: lower engaging projection
230: upper end support 231: upper end coupling groove 232: upper end coupling projection
240: stop support 241: receiving groove 250: vertical support
300: shaft portion 301: screw hole 302: fastening member
400: plate portion 410: pressing plate 411: first fixing member
412: screw hole 413: nut 414: projecting member
415: pressing member 420: center plate 421: receiving groove
422: screw hole 423: second fixing member 430: side plate
431: first screw hole 432: second screw hole 433: third fixing member

Claims (7)

A base portion which is brought into contact with the upper side of the heating element so that heat of the heating element is conducted;
A shaft portion coupled to a center portion on an upper side of the base portion and provided in an elongated shape upward in the longitudinal direction from the base portion;
A plurality of radiating fins for radiating heat generated from the heating element are radially provided to surround the outside of the shaft portion; And
And a plate portion provided on the upper side of the heat dissipation unit to press the heat dissipation unit in the direction of the base unit. The method according to claim 1,
The plate portion
A protruding member is provided at a lower end in the longitudinal direction so as to be fitted to the upper side of the shaft portion and a pressing member is provided to wrap the protruding member in a stop in the longitudinal direction, A pressing plate formed with balls;
A center plate having a receiving groove formed at a center thereof so that the pressing plate is received in the shaft, and a plurality of screw holes formed at a periphery thereof; And
A plurality of screw holes are formed on one side of the center plate so as to correspond to a plurality of screw holes on the center plate and are seated on the periphery of the center plate and a plurality of screw holes are formed on the other side, Wherein the heat sink includes a heat sink and a plate. 3. The method of claim 2,
The plate portion
Further comprising a plurality of fixing members for firmly fixing a structure for pressing the upper side of the plurality of radiating fins,
Wherein the plurality of fixing members comprise:
A first fixing member accommodated in a screw hole of the pressing plate so that a lower side of the pressing plate is coupled to the upper side of the shaft portion;
A second fixing member for simultaneously receiving a plurality of screw holes of the center plate and a plurality of screw holes on one side of the side plate so that one side of the side plate is coupled to the upper side of the periphery of the center plate; And
And a third fixing member accommodated in a plurality of screw holes on the other side of the side plate so as to penetrate both the heat dissipation unit and the base unit and to connect the other side of the side plate to the upper side of the plurality of radiating fins. Heat sink for LED lighting. The method of claim 3,
The heat-
A lower support for supporting the plurality of radiating fins so as to be spaced apart from each other;
A top support for supporting the plurality of radiating fins so that the plurality of radiating fins are spaced apart from each other and being provided horizontally with the base portion at an upper end of the plurality of radiating fins, And
And a stop support protruding horizontally with respect to the base part at the stop of either the front surface or the rear surface of the plurality of radiating fins and spaced apart from the plurality of radiating fins. Heat sink heatsink. 5. The method of claim 4,
And the third fixing member comprises:
The heat sink is formed of a metal having a high thermal conductivity so that heat generated in the heat generating element is conducted to the plurality of radiating fins. When the heat sink passes through the lower support and the periphery of the base, And heat is transferred to the plurality of radiating fins through the stop support base. 5. The method of claim 4,
The heat-
The lower stage support,
A lower coupling groove for coupling with the adjacent radiating fin; And
And a lower coupling protrusion for fitting into the lower coupling groove,
The upper support includes:
An upper coupling groove for coupling with the adjacent radiating fin; And
And an upper coupling protrusion for fitting into the upper coupling groove,
The abutment support,
Wherein a contact area between the adjacent heat dissipation fins is increased by bending an end of the heat dissipation fin in contact with the adjacent heat dissipation fins so that a distance between the adjacent heat dissipation fins is maintained. 5. The method of claim 4,
The heat-
And a radiating through hole formed on the outer side and the lower side so that the outside air flows for radiating heat,
The base unit includes:
A base through-hole in the vicinity of the heat dissipating through hole for dissipating heat by the outside air passing through the heat dissipating through-hole; And
A fixing pin provided at a central portion to be engaged with a lower side of the shaft portion; And an auxiliary fin (50).






KR1020160007917A 2016-01-22 2016-01-22 heat dissipation heat sink for LED lighting KR20170088051A (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109611704A (en) * 2018-12-10 2019-04-12 中山市群狼照明科技有限公司 One bulb bubble
KR102068940B1 (en) * 2019-08-30 2020-02-11 주식회사 레젠 Prefabricated heatsink for LED lamp

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109611704A (en) * 2018-12-10 2019-04-12 中山市群狼照明科技有限公司 One bulb bubble
CN109611704B (en) * 2018-12-10 2024-01-26 中山市一群狼照明科技有限公司 Ball bubble
KR102068940B1 (en) * 2019-08-30 2020-02-11 주식회사 레젠 Prefabricated heatsink for LED lamp

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