KR101602304B1

KR101602304B1 - Heat sink apparatus

Info

Publication number: KR101602304B1
Application number: KR1020140016431A
Authority: KR
Inventors: 이영주; 박남신; 오성은; 강정현
Original assignee: 동부라이텍 주식회사
Priority date: 2014-02-13
Filing date: 2014-02-13
Publication date: 2016-03-10
Also published as: KR20150095295A; WO2015122618A1

Abstract

A heat dissipating device for lighting is disclosed. According to an aspect of the present invention, there is provided a heat dissipation device for illumination, comprising: a main body to which light is connected at one side; And a plurality of heat radiating fins detachably coupled to the main body, respectively; And a fixing plate that is coupled to the main body and at least a part of the plurality of radiating fins is interposed between the main body and the fixing plate. According to the present invention, the radiating fins having various shapes and sizes are attached to the body constituting the frame of the heat sink so that the radiating fins are individually assembled and then the fixing plate is coupled to the body, It is possible to form a heat dissipating device suitable for each application and a purpose of use, and it is easy to manufacture and lower the manufacturing cost, and the fixing plate is inserted into the first and second latching grooves of the heat dissipating fin, Can be done very quickly.

Description

[0001] HEAT SINK APPARATUS [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a heat dissipation device, and more particularly, to a heat dissipation device for an illumination device capable of forming various sizes and shapes according to the heat capacity of an illumination device in forming a heat dissipation device.

In recent years, a lighting lamp using a light emitting diode (LED) as a light source is widely used as an illumination lamp using electric energy.

A light emitting diode (LED) is smaller in size than a conventional incandescent lamp or a fluorescent lamp, has a long life span and is favorable for energy efficiency. However, since the life is shortened when the heat emitted from the LED is not properly discharged, Emission of heat generated is an important factor in the manufacture of LED lamps.

Korean Patent No. 10-1136491 discloses a "LED lighting lamp to which a ventilation hole is applied", and specifically relates to an LED lighting fixture to which a ventilation hole is applied. In the LED lighting lamp, a ventilation hole is formed in a heat dissipation fin of an LED lighting fixture, The heat generated from the diodes can be dissipated smoothly while productivity and production cost can be greatly reduced and the weight can be reduced.

On the other hand, Korean Patent No. 10-1137888 discloses a "heat sink for lighting ", specifically, a base on which a substrate on which a plurality of LEDs are arranged is installed on one surface; A plurality of first radiating fin arrays formed on the other surface of the base and arranged radially at a predetermined angle with respect to the center of the base; And a plurality of second radiating fin arrays formed between the first radiating fin arrays and radially disposed at an angle with respect to the center of the base, wherein each of the first radiating fin arrays includes a plurality of first radiating fin arrays And the number of the first radiating fins is different from the number of the second radiating fins. In this case, the number of the first radiating fins is made different from the number of the second radiating fins, The material cost of the heat sink can be greatly reduced while maintaining the same or similar heat dissipation effect as the sink.

As described above, various types of heat dissipating devices have been introduced as means for heat dissipation in LED lighting lamps. However, the conventional heat dissipating device including the heat dissipating device disclosed in the aforementioned patent has the following problems.

As one form of the heat dissipating device, there are cases where a large number of heat dissipating fins are integrally formed in the frame of the heat sink. In this case, the heat dissipating fin is difficult to manufacture and can not be applied to various capacity lights.

As another form, there is a case in which the heat radiating fins are coupled to the heat sink frame after separately forming the heat radiating fins. In this case, it is difficult to individually connect the heat radiating fins to the frame and a long time is required for manufacturing.

An object of the present invention is to provide a heat dissipating device for illumination which can be applied to various types of illumination, is easy to manufacture, and has excellent heat dissipation efficiency.

The object is achieved by a lighting device comprising: a main body to which a light is connected to one side; And a plurality of heat radiating fins detachably coupled to the main body, respectively; And a fixing plate that is coupled to the main body and at least a part of the plurality of radiating fins is interposed between the main body and the fixing plate.

The main body is provided with a flattened seating surface, and the radiating fin includes: a tightening plate closely attached to the seating surface; A first heat sink plate bent at one end of the adhesive plate and protruding in a direction away from the seating surface, the first heat sink including a first latch groove recessed toward the seating surface; And a second heat dissipating plate which is bent at the other end of the tightening plate and protrudes in a direction away from the seating surface, the second heat dissipating plate being recessed toward the seating surface, wherein the fixing plate includes the first fastening groove and the second fastening groove It can be made to be inserted into the groove.

Wherein the radiating fin comprises: a first pressure plate bent from the first heat sink at an inner end of the first latching groove; And a second pressure plate bent from the second heat sink at an inner end of the second latching groove, wherein the first pressure plate and the second pressure plate are brought into close contact with the fixing plate.

The width of the first latching groove and the second latching groove may be the same as the width of the fixing plate.

The main body may have a plurality of fixing protrusions protruding from the seating surface toward the radiating fins, and the fixing plate may be formed with a corresponding fixing groove for inserting the fixing protrusions.

The fixing protrusions are arranged in a circular shape on the seating surface, and the fixing plate may have a circular shape concentric with the fixing protrusions arranged in a circular shape.

The fixing protrusion includes a spacing protrusion spaced apart from the fixing plate; And an engaging and fixing protrusion which is in tight contact with or coupled to the fixing plate. The engaging and fixing protrusions may be repeatedly formed along the circumferential direction on the seating surface.

Wherein the main body comprises a plurality of heat radiating ribs repeatedly formed at outer end portions of the seating surface in a circumferential direction so as to be spaced apart from each other; And a connection ring connecting the outer end of the heat dissipating rib.

The first heat radiating plate and the second heat radiating plate may be spaced apart from each other and the fixing protrusion may be positioned between imaginary lines connecting the heat radiating ribs at the center of the seating surface.

The first heat sink and the second heat sink may have a plurality of through holes formed therein.

Wherein the first heat radiating plate includes a first inner plate located inside the first latching groove on the seating surface and a first outer plate located outside the first latching groove, A second inner plate located inside the second latching groove on the first latching groove and a second outer plate located on the outer side of the second latching groove on the first latching groove and the first outer plate and the second outer plate, have.

According to the present invention, the radiating fins having various shapes and sizes are attached to the body constituting the frame of the heat sink so that the radiating fins are individually assembled and then the fixing plate is coupled to the body, It is possible to form a heat dissipating device suitable for each application and a purpose of use, and it is easy to manufacture and lower the manufacturing cost, and the fixing plate is inserted into the first and second latching grooves of the heat dissipating fin, Can be done very quickly.

1 is a perspective view illustrating a heat dissipating device for illumination according to an embodiment of the present invention,
FIG. 2 is an exploded perspective view showing the heat radiation device for illumination shown in FIG. 1,
FIG. 3 is a view showing a state before the first heat sink and the second heat sink are bent in the heat sink fin shown in FIG. 1;
4 is a perspective view illustrating a heat dissipating device for illumination according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, the well-known functions or constructions are not described in order to simplify the gist of the present invention.

1 is an exploded perspective view showing a heat dissipating device 1 for illumination shown in Fig. 1, Fig. 3 is an exploded perspective view of the heat dissipating device 1 for lighting according to an embodiment of the present invention, and Fig. 3 is a cross- The first heat radiating plate 220 and the second heat radiating plate 240 are not bent before the heat radiating fin 200 is bent.

The heat dissipating device 1 for illumination according to the present invention is used in a state where the illumination lamps are coupled together and is designed to easily heat the heat heated by the illumination lamps and particularly to a heat dissipation device for illumination 1).

The heat dissipating device 1 according to the present invention includes a main body 100, a radiating fin 200 and a fixing plate 300. The main body 100, the radiating fin 200, and the fixing plate 300 are individually And then they are assembled with each other to form the heat radiation device 1 for illumination.

The main body 100 is connected to a LED light (not shown) on one side, and is formed in a circular shape as shown in FIG. 2, and is connected to a circuit board (not shown) Do. The LED illumination and circuit board are coupled to the back side of the main body 100 shown in Fig.

The main body 100 is formed with a seating surface 110, a fixing protrusion 120, a heat radiating rib 130, and a connecting ring 140.

The seating surface 110 forms the center of the main body 100 and forms a generally flat circular surface.

The fixing protrusions 120 are formed in the form of a plurality of protrusions protruded so as to be integrally formed along the circumferential direction (circumferential direction of the seating surface 110) of the main body 100 and to be coupled with the radiating fins 200 . The fixing protrusions 120 are preferably arranged at equal intervals. The fixing protrusions 120 do not all have the same shape, but are divided into the spacing fixing protrusions 121 and the engaging fixing protrusions 122.

The spacing fixing protrusions 121 may have a prismatic shape, but preferably have a cylindrical shape, and protrude toward the upper side (the side facing the radiating fin 200). It is preferable that the overall arrangement of the spacing fixing protrusions 121 on the seating surface 110 is circular and concentric with the circle formed by the seating surface 110.

The engaging and fixing protrusions 122 are formed on the circumference formed by the spacing fixing protrusions 121, and are provided in a plurality of. That is, the spacing fixing protrusions 121 and the engaging fixing protrusions 122 are formed on the same circumference and are repeatedly formed along the circumferential direction on the seating surface 110. The pattern in which the spacing fixing protrusions 121 and the coupling fixing protrusions 122 are repeatedly formed may be regular or irregular.

It is preferable that the spacing fixing protrusions 121 are formed in a larger number than the coupling fixing protrusions 122 so that the inside of the radiating fins 200 (between the first heat sinks 220 and the second heat sinks 240) So that the flow of communication air can be smoothly carried out (minimization of the flow of air by the engagement and fixing protrusion 122)

The coupling fixing protrusions 122 may also be formed in a prismatic shape, but preferably have a cylindrical shape, and protrude toward the upper side (toward the radiating fin 200). The coupling protrusions 122 are longer than the spacing protrusions 121 so that the height of the coupling protrusions 122 is higher than the spacing protrusions 121. The engaging and fixing protrusion 122 is in close contact with the fixing plate 300 and can be fastened to the fixing plate 300 using a separate fixing means such as a bolt. For this purpose, it is preferable that a screw hole is formed at the center of the engaging and fixing protrusion 122 so that a bolt is inserted and fastened.

The heat dissipating rib 130 is formed between the seating surface 110 of the main body 100 and the connection ring 140. The heat dissipating ribs 130 are formed in the form of thin or thin plates or rods and are oriented toward the centrifugal direction of the seating surface 110 and are formed in a plurality of spaced apart shapes.

The position of the heat dissipating rib 130 is shifted from the position of the fixing protrusion 120. Specifically, the fixing protrusion 120 is positioned between the imaginary lines connecting the heat dissipating ribs 130 from the center of the seating surface 110 .

A space for communicating air can be formed between the heat dissipating ribs 130. Particularly, the space between the heat dissipating fins 200 and the space between the heat dissipating ribs 130 can communicate with each other, To be cooled effectively.

The connection ring 140 forms an end edge of the main body 100 and is formed in a circular band shape. The outer edge of the radiating fin 200 may touch or approach the inner surface of the connecting ring 140. The connecting ring 140 guides the assembling position of the radiating fin 200 on the main body 100, And the heat dissipation fins 200 are coupled with each other.

The heat dissipation fin 200 is for dissipating heat generated during the operation of the lamp more easily, such as a heat dissipation fin 200 formed in a conventional heat sink, It forms a thin plate.

The radiating fin 200 according to the present invention is manufactured separately from the main body 100, and is connected to the main body 100 to have a uniform arrangement. The plurality of heat dissipation fins 200 may all have the same shape, or a part may be formed to have a different shape.

In the heat dissipating device 1 for an illumination according to the present invention, the heat radiating fin 200 is made of a metal material having a high thermal conductivity like aluminum and can be formed by pressing a metal plate material. 3, the first and second heat sinks 220 and 240 are bent and bent in a direction perpendicular to the first and second heat sinks 210 and 240, .

With such a configuration, it is possible to form the radiating fin 200 that is easy to manufacture, and the radiating fin 200 can be easily coupled to the main body 100.

The radiating fin 200 includes a contact plate 210, a first heat sink 220, a first pressure plate 230, a second heat sink 240, and a second pressure plate 250.

The adhered plate 210 is in close contact with the seating surface 110 of the main body 100 and is formed as a generally narrow and long flat surface. The fastening plate 210 is formed in a trapezoidal shape or a fan shape and has a relatively narrow width toward the center of the seating surface 110 and a relatively wide width toward the outside of the seating surface 110. The centrifugal direction (or the centrifugal direction) of the seating surface 110 in the radiating fin 200 becomes the longitudinal direction of the tightening plate 210.

The fastening plate 210 is formed with a fixing groove 211 into which the fixing protrusion 120 is inserted and the fixing groove 211 has a shape corresponding to the fixing protrusion 120. That is, when the fixing protrusion 120 has a prismatic shape, the fixing groove 211 has a polygonal shape. When the fixing protrusion 120 has a cylindrical shape, the fixing groove 211 has a circular shape. The size of the fixing groove 211 is the same as the size of the fixing protrusion 120 (it does not mean that the fixing protrusion 120 is completely physically identical to the fixing groove 120, .

The first heat sink 220 is bent at one end of the adhesive plate 210 and is directed away from the seating surface 110 and is formed in a flat and wide plate shape. It is preferable that the first heat radiating plate 220 has a generally orthogonal shape to the close plate 210. The first heat sink 220 may be formed to have a generally planar shape and may be formed to have a certain degree of curvature within a range where a plurality of the heat sink fins 200 can be repeatedly arranged.

The first heat sink 220 includes a first latching groove 221, a first inner plate 222, and a first outer plate 223.

The first latching groove 221 is recessed downward from the upper edge of the first heat sink 220. That is, a part of the upper part of the first heat sink 220 is removed, so that the first latching groove 221 is provided.

The width of the first latching groove 221 may be uniform in the vertical direction, or may be narrower in the lower direction.

The first inner side plate 222 is a portion located on the inner side with respect to the first engaging groove 221 on the seating surface 110.

The first outer plate 223 is positioned on the seating surface 110 on the outer side of the seating surface 110 with respect to the first seating groove 221. The outer end of the first outer plate 223 may be in contact with the inner surface of the connecting ring 140 or may be in proximity to the inner surface of the connecting ring 140. [ .

A plurality of through holes 260 are repeatedly formed on the first heat sink 220, particularly on the first inner plate 222. The air circulates smoothly through the through holes 260 to prevent the heated air from being stagnated on one side of the main body 100 and to increase the heat dissipation efficiency.

The first pressure plate 230 is formed in a bent shape from the first heat sink 220 at an inner end of the first latch groove 221 and is formed substantially parallel to the contact plate 210. The height (height) from the contact plate 210 to the first pressure plate 230 is equal to the length (height) of the engagement fixing protrusion 122.

The second heat sink 240 is folded at the other end of the adhesive plate 210 and is directed away from the seating surface 110, and is formed in a flat and wide plate shape. The first heat radiating plate 220 and the second heat radiating plate 240 are symmetrically formed on the opposite sides of the heat dissipating fin 200 with the adhesive plate 210 as a center.

The second heat sink 240 includes a second latching groove 241, a second inner plate 242 and a second outer plate 243. The second latching groove 241, the second pressure plate 250, Each of the inner side plate 242 and the second side plate 243 includes the first latching groove 221, the first inner plate 222 and the first outer plate 223, And is formed in a symmetrical shape.

The second pressure plate 250 is formed to be bent from the second heat sink 240 at the inner end of the second latching groove 241 and is formed substantially parallel to the contact plate 210. The length (height) from the contact plate 210 to the second pressure plate 250 is equal to the length (height) of the engagement fixing protrusion 122. The second pressure plate 250 is preferably formed symmetrically with the first pressure plate 230.

As described above, in the heat dissipating apparatus 1 for an illumination according to the present invention, the heat dissipation fin 200 can function as two heat dissipation fins 200 by forming the first heat dissipation plate 220 and the second heat dissipation plate 240, 210 are brought into intimate contact with the seating surface 110, so that the heat transfer from the main body 100 is excellent.

The fixing plate 300 is a means for fixing a plurality of radiating fins 200 on the main body 100 while being fastened to the main body 100 by itself. Particularly, the fixing plate 300 includes a first latching groove 221, And the radiating fins 200 are fixed while being inserted into the second locking grooves 241. That is, the fixing plate 300 fixes the radiating fin 200 while allowing a part of the radiating fin 200 to be interposed between the fixing plate 300 and the main body 100.

The fixing plate 300 is formed in a circular shape so as to be concentric with the fixing protrusions 120 arranged in a circular shape and has the same radius as the circle formed by the arrangement of the fixing protrusions 120. The fixing plate 300 itself may be formed to have a perfect circular shape, or may be formed so as to be circular as the divided fixing plates 300 (each having a semicircle) are connected to each other, as shown in FIG.

The fastening plate 300 is provided with a fastening hole 310 formed through the fastening hole 310 and fastened to the fastening protrusion 122 after the bolt passes through the fastening hole 310. The fastening plate 300 and the main body 100 The fixing protrusion 122).

The width of the fixing plate 300 is equal to the width of the first and second engaging grooves 221 and 241 (the width of the first engaging groove 221 and the second engaging groove 241 is narrower toward the lower side The width of the fixing plate 300 is equal to the width of the first latching groove 221 and the width of the second latching groove 241 so that the coupling between the fixing plate 300 and the main body 100 The radiating fins 200 are prevented from moving in the centrifugal direction (or in the radial direction) of the seating surface 110. [ Since the first heat sink 220 and the second heat sink 240 are simultaneously fixed by the fixing plate 300, the formation direction of the heat dissipation fin 200 (the longitudinal direction of the tightening plate 210) (The rotation of the radiating fin 200 about the fixing protrusion 120 is blocked)

Hereinafter, an assembling process of the main body 100, the radiating fin 200, and the fixing plate 300 in the heat dissipating apparatus 1 according to the present invention will be briefly described.

The radiating fins 200 are seated on the seating surface 110 of the main body 100 and the fixing grooves 211 of the radiating fins 200 are fitted to the respective fixing protrusions 120. At this time, the first inner plate 222 and the second inner plate 242 are oriented toward the center of the seating surface 110, and the first outer plate 223 and the second outer plate 243 are positioned on the seating surface 110 ) To the outside. When the fixing protrusions 120 are formed in a circular shape, the radiating fins 200 can rotate around the fixing protrusions 120. This facilitates the fitting of the radiating fins 200, The first inner plate 222 and the second inner plate 242 of the radiating fin 200 are in contact with each other so that the entire radiating fin 200 has a generally radial shape when the radiating fin 200 is coupled.

The fixing plate 300 is inserted into the first and second locking grooves 221 and 241 of the radiating fin 200 and the fixing projection 120 of the fixing protrusion 120 is fastened to the fixing plate 300 . Thus, the engaging and fixing projections 122 are engaged with the fixing plate 300 while being separated from the fixing plate 300.

Since the first heat sink 220 and the second heat sink 240 are spaced apart from each other and the width of the fixing plate 300 is equal to the width of the first and second latching grooves 221 and 241, The coupling of the radiating fin 200 is performed simultaneously with the coupling of the fixing plate 300 on the main body 100 and the flow of the radiating fin 200 on the main body 100 is blocked.

Further, the entire heat dissipation fin 200 can be fixed by the combination of the fixing plate 300 and the main body 100, and the assembly of the heat dissipation device 1 for illumination can be performed very quickly.

4 is a perspective view showing the heat dissipating device 1 for illumination according to another embodiment of the present invention.

As described above, in the heat dissipating device 1 for an illumination according to the present invention, the plurality of heat dissipating fins 200 may be detachably attached to the heat dissipating device 1 for illumination, and may have various sizes or shapes.

Specifically, each of the first outer plate 223 and the second outer plate 243 of the radiating fin 200 may have a variable size.

In this manner, the radiation fin 200 can be provided in various sizes to easily form the radiation heat radiating device 1 according to the power consumption of the illumination.

For example, the heat dissipation fin 200 shown in FIG. 1 has a larger size than the heat dissipation fin 200 shown in FIG. 4 (specifically, the size of the first outer plate 223 and the second outer plate 243 is large If the heat radiation device 1 for lighting assembled with the heat radiation fins 200 shown in Fig. 1 is for 140W, the heat radiation device 1 for lighting assembled with the heat radiation fins 200 shown in Fig. 4 is used for 110W .

That is, the main body 100 and the fixing plate 300 can be equally shared, and the radiating fins 200 corresponding to each power consumption (heat capacity) can be selected and assembled. In addition, while reducing materials and costs, Thereby making it possible to provide the device 1.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is obvious to those who have. Accordingly, it should be understood that such modifications or alterations should not be understood individually from the technical spirit and viewpoint of the present invention, and that modified embodiments fall within the scope of the claims of the present invention.

1: Heat sink for lighting 100:
110: seating surface 120: fixing projection
121: spacing fixing protrusion 122: engaging fixing projection
130: heat radiating rib 140: connecting ring
200: radiating fin 210: close plate
211: Fixing groove
220: first heat sink 221: first engaging groove
222: first inside plate 223: first outside plate
230: first pressure plate 240: second heat sink
241: second latching groove 242: second inner plate
243: second outer plate 250: second presser plate
300: fixing plate 310: fastening hole

Claims

A main body adapted to be connected to a light source; And
A plurality of heat radiating fins each detachably coupled to the main body; And
And a fixing plate that is coupled to the main body and at least a part of the plurality of radiating fins is interposed between the main body and the main body,
The body is provided with a flattened seating surface,
The heat-
An urging plate which is brought into close contact with the seating surface;
A first heat sink plate bent at one end of the adhesive plate and protruding in a direction away from the seating surface, the first heat sink including a first latch groove recessed toward the seating surface; And
And a second heat sink plate bent at the other end of the close plate and protruding in a direction away from the seating surface, wherein the second heat sink is provided with a second latch groove recessed toward the seating surface,
The fixing plate is inserted into the first engaging groove and the second engaging groove,
The main body is provided with a plurality of fixing protrusions protruding from the seating surface toward the radiating fins,
Wherein the fastening plate is formed with a corresponding fixing groove for inserting the fixing protrusion,
Wherein the fixing protrusions are arranged in a circular shape on the seating surface,
Wherein the fixing plate has a circular shape concentric with the fixing protrusions arranged in a circular shape,
Wherein,
A spacing protrusion spaced apart from the fixing plate; And
And an engaging fixing protrusion that is in tight contact with or coupled to the fixing plate,
Wherein the spacing fixing protrusions and the coupling fixing protrusions are repeatedly formed along the circumferential direction on the seating surface.

delete

The method according to claim 1,
The heat-
A first pressure plate bent from the first heat sink at an inner end of the first latching groove; And
And a second pressure plate bent from the second heat sink at an inner end of the second latching groove,
Wherein the first pressure plate and the second pressure plate are in close contact with the fixing plate.

The method according to claim 1,
And the width of the first latching groove and the second latching groove is equal to the width of the fixing plate.

delete

The method according to claim 1,
The main body includes:
A plurality of heat dissipating ribs repeatedly formed at outer end portions of the seating surface so as to be spaced apart from each other along a circumferential direction; And
And a connection ring connecting the outer end of the heat dissipating rib.

9. The method of claim 8,
Wherein the first heat sink and the second heat sink are spaced apart from each other,
Wherein the fixing projection is located between imaginary lines connecting the center of the seating surface and the radiating ribs.

The method according to any one of claims 1, 3, 4, 8, and 9,
Wherein the first heat sink and the second heat sink have a plurality of through holes formed therein.

The method according to any one of claims 1, 3, 4, 8, and 9,
The first heat radiating plate includes a first inner plate located on the seating surface in the first engaging groove and a first outer plate positioned on the outer side of the first engaging groove,
The second heat sink includes a second inner plate located on the seating surface inside the second latching groove and a second outer plate positioned on the outer side of the second latching groove,
Wherein each of the first outer plate and the second outer plate has a variable size.