TWM447963U - Heat sink structure and lighting device using the same - Google Patents

Abstract

The present invention discloses a heat sink structure and a lighting device using in the same. The heat sink structure includes a central tube body and a plurality of heat sink fins. The heat sink fins are arranged around a peripheral surface of the central tube body. A restricting relation is formed between the heat sink fins and the central tube body so that the central tube body can not be detached from the heat sink fins.

Description

Heat dissipation structure and lighting device applying the same

This creation is a heat dissipation structure, especially related to an assembled heat dissipation structure.

Light Emitting Diode (LED) has been widely used in daily life in recent years, because of its advantages and advantages of energy saving, such as displays, home appliances, automotive electronic components, lighting fixtures, etc. They are all applications of light-emitting diodes. For example, a household lighting fixture using a light-emitting diode as a light source has the advantages of fast warming time, fast response speed, small volume, long life, power saving, shock resistance, low pollution degree, high reliability and suitable mass production. The advantages of traditional incandescent bulbs and fluorescent lamps have gradually been replaced.

Please refer to FIG. 1 , which is a partial structural diagram of a conventional illumination device using a light-emitting diode as a light source. The illuminating device 1 includes a light emitting diode 11 , a metal substrate 12 , and a heat dissipating fin structure 13 disposed under the metal substrate 12 , and the light emitting diode 11 includes a light emitting portion 111 , a heat dissipating portion 112 , and an electrical pin 113 , and the metal The substrate 12 includes a light-emitting diode circuit board 121, an insulating plate 122 having a high thermal conductivity, and an aluminum plate 123 from top to bottom. The heat-dissipating portion 112 and the electrical pin 113 of the light-emitting diode 11 are soldered to the light-emitting diodes The copper foil of the polar circuit board 121 is used for the light emitting diode When the body circuit board 121 is turned on, the light-emitting diode 11 is driven to emit light. In addition, while the light-emitting diode 11 emits light, the light-emitting diode 11 generates a large amount of thermal energy, which is sequentially transmitted from the heat-dissipating portion 112 of the light-emitting diode 11 via the light-emitting diode circuit board 121 and the insulating plate 122. The aluminum plate 123 and the heat dissipation fin structure 13 are outwardly led out as indicated by an arrow D1.

Please refer to FIG. 2 , which is a perspective view of the heat dissipation fin structure 13 of the lighting device shown in FIG. 1 . The surface of the heat dissipation fin structure 13 has a plurality of heat dissipation fins 131 integrally formed with the heat dissipation fin structure 13 , and a groove is formed between any two adjacent heat dissipation fins to increase the surface area of the outer edge of the heat dissipation fin structure 13 , so that the light is emitted. The heat energy generated by the diode 11 can be accelerated to the outside.

However, as the illumination required by today's lighting devices is increasing, the power consumed and the heat generated are becoming higher and higher, although the conventional lighting device 1 has increased the heat dissipation effect by increasing the surface area of the heat dissipation fin structure 13, but integrated The formed heat dissipation fin structure 13 causes the plurality of heat dissipation fins 131 on the outer surface thereof to be limited by structural stress and material properties, so that the number, height and thickness of the heat dissipation fins 131 are subject to certain construction restrictions. It is known that the heat sink fin structure 13 has gradually failed to meet the heat rejection requirements of today's lighting devices.

In view of this, another assembled heat sink fin structure has been proposed. Please refer to FIG. 3 , which is an exploded perspective view of a heat dissipation fin structure of another conventional illumination device. The heat dissipation fin structure 14 includes a carrier 141, a plurality of heat dissipation fins 142, and a fixing metal plate 143. The central tube body 144 is formed on the carrier, and a plurality of heat dissipation fins 142 are formed. The surface of the central metal tube 142 is collectively surrounding; wherein a surface of the metal plate 143 is used to carry and contact the metal substrate 12 of the illumination device 1, and the other surface of the metal plate 143 is formed with a plurality of surfaces. The protrusions 1431; further, each of the heat dissipation fins 142 has a bent surface 1421, and each of the curved surfaces 1421 has a through hole 1422 corresponding to the protrusion 1431, so that each protrusion 1431 can pass through the corresponding The through holes 1422 enable the heat dissipation fins 142 to be fixed when the heat dissipation fins 142 surround the peripheral surface of the central tube 144. As can be seen from the above description, the central tube body 144 in the prior art is responsible for guiding the heat energy received from the metal substrate 12 outwardly from the surrounding surface thereof or toward the heat dissipating fins.

Although the above-described assembled heat dissipating fin structure 14 has solved the problem that the number, height and thickness of the heat dissipating fins are limited by construction, the central tube body 144 in the prior art has only the function of heat conduction and does not have The functions of the heat dissipating fins 14 are fixed to each other, so that additional fixing means are needed to fix the heat dissipating fins 14, such as the fixing metal plate 143, which causes excessive components and increases manufacturing cost. Therefore, the conventional lighting device and its heat dissipating fins The structure still has room for improvement.

The purpose of this creation is to provide an assembled heat dissipation structure.

Another object of the present invention is to provide an illumination device to which the above heat dissipation structure is applied.

In a preferred embodiment, the present disclosure provides a heat dissipation structure including a central tube body and a plurality of heat dissipation fins, each of which is coupled with an adjacent heat dissipation fin to enable the heat dissipation fins The sheets collectively surround a peripheral surface of the central tube; wherein each of the heat dissipation fins has a fin protrusion, and the central tube has a peripheral surface formed thereon for receiving each of the fin protrusions One of the tubular recesses; or the central tubular body has a tubular body formed on the peripheral surface, and each of the heat dissipating fins has a fin recess for receiving the tubular convex portion.

In a preferred embodiment, each of the heat dissipation fins has a first bonding portion and a second bonding portion, and the first bonding portion of any of the heat dissipation fins is used for the heat dissipation fins adjacent thereto. The second joints are combined with each other.

In a preferred embodiment, each of the heat dissipation fins further has a first surface and a second surface, the second surface is in contact with the surrounding surface of the central tube, and the first surface and the second surface The surfaces together form an L-shape.

In a preferred embodiment, when each of the heat dissipation fins has the fin protrusion, the second surface is formed on the fin protrusion, or the second surface is not formed on the fin protrusion. And when each of the heat dissipation fins has the fin recess, the second surface is formed in the fin recess, or the second surface is not formed in the fin recess.

In a preferred embodiment, the first bonding portion of each of the heat dissipation fins is a fin hole, and the fin hole is formed on the first surface, and each of the heat dissipation fins a second joint is a flange formed at an extended end of the second surface; The flange of each of the heat dissipation fins is inserted into the fin hole of the heat dissipation fin adjacent thereto, so that each of the heat dissipation fins is fastened to the heat dissipation fin adjacent thereto .

In a preferred embodiment, the central tube system has a cylindrical shape or a column shape, or the central tube system is made of a copper material or an aluminum material.

In a preferred embodiment, the heat dissipation structure is applied to a lighting device.

In a preferred embodiment, the present invention also provides an illumination device comprising: at least one light-emitting component; a heat dissipation structure comprising: a central tube body; and a plurality of heat dissipation fins, any of the heat dissipation fins being adjacent thereto The heat dissipating fins are coupled to each other such that the heat dissipating fins collectively surround a surrounding surface of the central tube body; wherein each of the heat dissipating fins has a fin protrusion, and the central tube body has a shape formed thereon The surrounding surface is configured to receive a recess of the tubular body of each of the fin protrusions; or the central tubular body has a tubular body formed on the peripheral surface, and each of the heat dissipating fins has a receiving portion One of the fin projections of the tube convex portion.

a light source circuit board is in contact with the heat dissipation structure, and includes a circuit layer for electrically connecting the at least one light emitting element to the circuit layer; and a driving circuit board disposed in the central tube body and electrically Connected to the light source circuit board, the driving circuit board is configured to drive the at least one hair on the light source circuit board body The light element outputs illumination light.

In a preferred embodiment, each of the heat dissipation fins has a first bonding portion and a second bonding portion, and the first bonding portion of any of the heat dissipation fins is used for the heat dissipation fins adjacent thereto. The second joints are combined with each other.

In a preferred embodiment, each of the heat dissipation fins further has a first surface and a second surface, the second surface is in contact with the surrounding surface of the central tube, and the first surface and the second surface The surfaces together form an L-shape.

In a preferred embodiment, when each of the heat dissipation fins has the fin protrusion, the second surface is formed on the fin protrusion, or the second surface is not formed on the fin protrusion. And when each of the heat dissipation fins has the fin recess, the second surface is formed in the fin recess, or the second surface is not formed in the fin recess.

In a preferred embodiment, the first bonding portion of each of the heat dissipation fins is a fin hole, and the fin hole is formed on the first surface, and each of the heat dissipation fins The second bonding portion is a flange formed on the extending end of the second surface; wherein the flange of each of the heat dissipation fins is inserted into the fin of the heat dissipation fin adjacent thereto, So that each of the heat dissipation fins is fastened to the heat dissipation fins adjacent thereto.

In a preferred embodiment, each of the heat dissipation fins further has a third surface perpendicular to the first surface and the second surface, the second surface being in contact with the light source circuit board.

In a preferred embodiment, the light emitting element is a light emitting diode.

In a preferred embodiment, the present invention also provides a heat dissipation structure including a central tube body, and a plurality of heat dissipation fins collectively surrounding a surrounding surface of the central tube body, and each of the heat dissipation fins has a first a bonding portion and a second bonding portion, the first bonding portion of any of the heat dissipation fins is coupled to the second bonding portion of the adjacent heat dissipation fin; wherein each of the heat dissipation fins and the central tube A limit relationship is formed between the bodies to prevent the central tube from coming off the plurality of heat dissipation fins.

In a preferred embodiment, each of the heat dissipation fins has a fin protrusion, and the central tube body has a concave portion formed on the peripheral surface for receiving one of the fin protrusions; or The central tube body has a tube body protrusion formed on the peripheral surface, and each of the heat dissipation fins has a fin recess for receiving the tube body protrusion.

In a preferred embodiment, each of the heat dissipation fins further has a first surface and a second surface, the second surface is in contact with the surrounding surface of the central tube, and the first surface and the second surface The surfaces together form an L-shape.

In a preferred embodiment, when each of the heat dissipation fins has the fin protrusion, the second surface is formed on the fin protrusion, or the second surface is not formed on the fin protrusion. And when each of the heat dissipation fins has the fin recess, the second surface is formed in the fin recess, or the second surface is not formed in the fin recess.

In a preferred embodiment, the first bonding portion of each of the heat dissipation fins is a fin hole, and the fin is formed on the first surface, and each of the heat dissipation fins The second bonding portion is formed as a flange formed on the extending end of the second surface; wherein the flange of each of the heat dissipation fins is inserted into the fin of the heat dissipation fin adjacent thereto The holes are such that each of the heat dissipation fins is engaged with the heat dissipation fins adjacent thereto.

In a preferred embodiment, the central tube system has a cylindrical shape or a column shape, or the central tube system is made of a copper material or an aluminum material.

Please refer to FIG. 4 and FIG. 5. FIG. 4 is a side view showing the structure of a lighting device according to a preferred embodiment. FIG. 5 is a schematic structural view of a light source circuit board and a driving circuit board of the lighting device shown in FIG. The illuminating device 2 includes a plurality of illuminating elements 21, a light source circuit board 22, a driving circuit board 23, and a heat dissipating structure 24, wherein the light source circuit board 22 includes a circuit layer 221 and an insulating layer 222 for contacting the heat dissipating structure 24, The circuit layer 221 is electrically connected to the plurality of light-emitting elements 21, and the driving circuit board 23 is electrically connected to the light source circuit board 22 to drive the light source circuit board 22 when the driving circuit board 23 is powered. The light-emitting element 21 outputs illumination light. Of course, the structure and assembly manner of the above-mentioned light source circuit board 22 and the driving circuit board 23 are only one embodiment, and any equal variation design can be made by those skilled in the art according to actual application requirements. In the preferred embodiment, the light emitting element system 21 is a light emitting diode and has a light emitting The portion 211, the heat dissipating portion 212 and the electrical pin 213, and the heat dissipating portion 213 is in contact with the light source circuit board 22, and the electrical pin 213 is soldered to the copper foil 223 of the light source circuit board 22; wherein, the light emitting element 21 outputs While illuminating the light, the light-emitting element 21 generates a large amount of thermal energy, which is sequentially led out from the heat-dissipating portion 213 of the light-emitting element 21 via the light-emitting circuit board 22 and the heat-dissipating structure 24, as indicated by an arrow D2.

Please refer to FIG. 6 to FIG. 9. FIG. 6 is a schematic diagram of the first preferred embodiment of the heat dissipation structure, FIG. 7 is an exploded perspective view of the heat dissipation structure shown in FIG. 6, and FIG. 8 is a heat dissipation structure shown in FIG. FIG. 9 is a schematic view showing any two adjacent heat dissipating fins in the heat dissipating structure shown in FIG. 6 in an assembled state.

The heat dissipation structure 24 includes a central tube body 241 and a plurality of heat dissipation fins 242. The central tube body 241 is made of a heat dissipation material such as a copper material or an aluminum material, and is used for accommodating the driving circuit board 23, and the Each of the heat dissipation fins 242 is coupled to the adjacent heat dissipation fins 242 such that the heat dissipation fins 242 collectively surround the surrounding surface of the central tube body 241; wherein each heat dissipation fin Each of the 242 has a first bonding portion 2423 and a second bonding portion 2424 , and the first bonding portion 2423 of any of the heat dissipation fins 242 is coupled to the second bonding portion 2424 of the heat dissipation fin 242 adjacent thereto.

In the preferred embodiment, each of the heat dissipation fins 242 further has a first surface 2421 and a second surface 2422. The second surface 2422 is in contact with the peripheral surface of the central tube 241, and the first surface 2421 and the second surface. Surfaces 2422 together form an L-shape. Moreover, in the preferred embodiment, the first bonding portion 2423 of each of the heat dissipation fins 242 is a fin hole, and the fin holes are formed on the first surface 2421, and each of the heat dissipation fins is The second joint 2424 is a flange and the flange is formed at the extended end of the second surface 2422 as shown in FIG.

The flange (second joint portion 2424) of each of the heat dissipation fins 242 is for inserting a fin hole (first joint portion 2423) of the heat dissipation fin 242 adjacent thereto, and the flange (second The joint portion 2424) is appropriately bent at an appropriate angle after inserting the corresponding fin hole (the first joint portion 2423), so that each heat sink fin is fastened to the heat sink fin adjacent thereto, such as Figure 9 shows.

In particular, the above is only a preferred embodiment of the present invention, and those skilled in the art can make any equal change design according to the enlightenment obtained in the above preferred embodiment and according to actual application requirements, so that the heat dissipation structure 24 is Any two adjacent heat dissipation fins 242 can be assembled and combined with each other. In addition, although the central pipe body 241 in the present embodiment has a cylindrical shape, it is not limited thereto. The person familiar with the present technology can also design the central pipe body 241 into an appropriate shape according to actual application requirements, such as a square column. shape.

Next, the creative spirit of the present invention will be described. In order to prevent the central tube body 241 from being detached from between the heat dissipation fins 242, a limit relationship is formed between each of the heat dissipation fins 242 and the central tube body 241.

In the preferred embodiment, each of the heat dissipation fins 242 has a fin protrusion 2425, and the second surface 2422 of the heat dissipation fin 242 is formed on the fin protrusion 2425, and the central tube body 241 has a shape and surround a tubular recess 2411 on a peripheral surface thereof, and The tube recess 2411 is configured to receive the fin protrusions 2425 of each of the heat dissipation fins 242. Thus, the central tube body 2411 and the heat dissipation fins 242 can be fixed to each other.

Please refer to FIG. 10 , which is an exploded perspective view showing a part of the structure of the second preferred embodiment of the heat dissipation structure. The heat dissipation structure of this embodiment is substantially similar to that described in the first preferred embodiment of the present invention, and will not be further described herein. The difference between the preferred embodiment and the first preferred embodiment is that the second surface 2422A of each of the heat dissipation fins 242A is formed not on the fin protrusions 2425A but on the fin protrusions 2425A. Upper side and lower side. It is to be noted that, in order to more clearly illustrate the present embodiment, only a portion of the heat dissipation fins 242A are illustrated in FIG.

Please refer to FIG. 11 , which is an exploded perspective view showing a part of the structure of the third preferred embodiment of the heat dissipation structure. The heat dissipation structure of this embodiment is substantially similar to that described in the first preferred embodiment of the present invention, and will not be further described herein. The preferred embodiment differs from the first preferred embodiment in that the central tube body 241B has a tube protrusion 2412B formed around and surrounding the peripheral surface thereof, and each of the heat dissipation fins 242B has a fin recess. 2426B; wherein each fin recess 2426B is for receiving the tube protrusion 2412B, so that the central tube body 241B and the heat dissipation fins 242B can be fixed to each other; further, in the preferred embodiment, each A second surface 2422B of a heat dissipation fin 242B is formed on the fin recess 2426B. It is to be noted that, in order to more clearly illustrate the present embodiment, only a portion of the heat dissipation fins 242B are illustrated in FIG.

Please refer to FIG. 12 , which is an exploded perspective view showing a part of the structure of the fourth preferred embodiment of the heat dissipation structure. The heat dissipation structure of this embodiment is substantially similar to the third comparison in this case. The description in the preferred embodiment will not be repeated here. The difference between the preferred embodiment and the third preferred embodiment is that the second surface 2422C of each of the heat dissipation fins 242C is not formed on the fin recess 2426C, but is formed on the upper side of the fin recess 2426C. With the underside.

In particular, the above are only a few preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Those skilled in the art can obtain the enlightenment obtained from the above preferred embodiments and according to practical application requirements. And any equal change design is made to form a limit relationship between the plurality of heat dissipation fins in the heat dissipation structure and the central pipe body. In addition, since the plurality of heat dissipation fins in the heat dissipation structure of the present invention form a limit relationship with the central tube body, no additional components are required to fix the heat dissipation fins and the central tube body, which will simplify the process and reduce the process. cost.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the scope of the patent application of the present invention. Therefore, any equivalent changes or modifications made without departing from the spirit of the present invention should be included in the present case. Within the scope of the patent application.

1‧‧‧Lighting device

2‧‧‧Lighting device

11‧‧‧Lighting diode

12‧‧‧Metal substrate

13‧‧‧ Heat sink fin structure

14‧‧‧ Heat sink fin structure

21‧‧‧Lighting elements

22‧‧‧Light source circuit board

23‧‧‧Drive Circuit Board

24‧‧‧heating structure

111‧‧‧Lighting Department

112‧‧‧ Department of heat dissipation

113‧‧‧Electrical pins

121‧‧‧Lighting diode board

122‧‧‧Insulation board

123‧‧‧Aluminum plate

131‧‧‧heat fins

141‧‧‧ bearing seat

142‧‧‧heat fins

143‧‧‧Carmel sheet metal

144‧‧‧Central body

211‧‧‧Lighting Department

212‧‧‧ Department of heat dissipation

213‧‧‧Electrical pins

221‧‧‧ circuit layer

222‧‧‧Insulation

223‧‧‧ copper foil

241‧‧‧Central body

241B‧‧‧Central body

242‧‧‧Solid fins

242A‧‧‧heat fins

242B‧‧‧heat fins

242C‧‧‧heat fins

1421‧‧‧Bend surface

1422‧‧‧Perforation

1431‧‧‧Bump

2411‧‧‧Tube recess

2412B‧‧‧Tube convex

2421‧‧‧ first surface

2422‧‧‧ second surface

2422A‧‧‧ second surface

2422B‧‧‧ second surface

2422C‧‧‧ second surface

2423‧‧‧ first joint

2424‧‧‧Second junction

2425‧‧‧Fin convex

2425A‧‧‧Fin convex

2426B‧‧‧Fin recess

2426C‧‧‧Fin recess

D1‧‧‧ arrow

D2‧‧‧ arrow

FIG. 1 is a partial structural diagram of a conventional illumination device using a light-emitting diode as a light source.

Figure 2 is a perspective view of the heat sink fin structure 13 of the lighting device of Figure 1.

Figure 3 is an exploded perspective view of a heat sink fin structure of another conventional illumination device.

Figure 4 is a side elevational view of a preferred embodiment of the authored illumination device.

Fig. 5 is a structural schematic view showing a light source circuit board and a driving circuit board of the lighting device shown in Fig. 4.

FIG. 6 is a schematic structural view of a first preferred embodiment of the present heat dissipation structure.

Figure 7 is an exploded perspective view of the heat dissipation structure shown in Figure 6.

FIG. 8 is a schematic view showing any two adjacent heat dissipation fins in the heat dissipation structure shown in FIG. 6 in an exploded state.

FIG. 9 is a schematic view showing any two adjacent heat dissipation fins in the heat dissipation structure shown in FIG. 6 in an assembled state.

Figure 10 is an exploded perspective view showing a portion of the structure of the second preferred embodiment of the heat dissipation structure.

Figure 11 is an exploded perspective view showing a portion of the structure of the third preferred embodiment of the heat dissipation structure.

Figure 12 is an exploded perspective view showing a portion of the structure of the fourth preferred embodiment of the heat dissipation structure.

24‧‧‧heating structure

241‧‧‧Central body

242‧‧‧Solid fins

2411‧‧‧Tube recess

2423‧‧‧ first joint

2424‧‧‧Second junction

Claims (20)

A heat dissipation structure includes a central tube body; and a plurality of heat dissipation fins, each of the heat dissipation fins being coupled to the adjacent heat dissipation fins such that the heat dissipation fins surround the one of the central tube bodies a surface; wherein each of the heat dissipation fins has a fin protrusion, and the central tube body has a concave portion formed on the peripheral surface for receiving one of the fin protrusions; or the central tube The body has a tube protrusion formed on the peripheral surface, and each of the heat dissipation fins has a fin recess for receiving the tube protrusion. The heat dissipation structure of claim 1, wherein each of the heat dissipation fins has a first joint portion and a second joint portion, and the first joint portion of any of the heat sink fins is used for The second joints of the adjacent fins are coupled to each other. The heat dissipation structure of claim 2, wherein each of the heat dissipation fins further has a first surface and a second surface, the second surface contacting the peripheral surface of the central tube, and the A surface and the second surface together form an L-shape. The heat dissipation structure of claim 3, wherein when each of the heat dissipation fins has the fin protrusion, the second surface is formed on the fin protrusion, or the second surface is not formed. In the fin protrusion, when each of the heat dissipation fins has the fin recess, the second surface is formed in the fin recess, or the second surface is not formed in the fin recess. The heat dissipation structure according to claim 3, wherein each of the heat dissipation fins The first bonding portion is a fin hole, and the fin is formed on the first surface, and the second bonding portion of each of the heat dissipation fins is formed on the second surface. a flange of the end; wherein the flange of each of the heat dissipation fins is inserted into the fin of the heat dissipation fin adjacent thereto so that each of the heat dissipation fins is adjacent thereto The fins are fastened to each other. The heat dissipation structure according to claim 1, wherein the central pipe system has a cylindrical shape or a column shape, or the central pipe system is made of a copper material or an aluminum material. The heat dissipation structure according to claim 1 is applied to a lighting device. A lighting device comprising: at least one light emitting component; a heat dissipating structure comprising: a central tube body; and a plurality of heat dissipating fins, each of the heat dissipating fins being combined with the adjacent heat dissipating fins to enable the heat dissipating The fins collectively surround a surrounding surface of the central tube body; wherein each of the heat dissipation fins has a fin protrusion, and the central tube body has a peripheral surface formed thereon for receiving each of the fin protrusions a tube recess; or the central tube has a tube protrusion formed on the peripheral surface, and each of the fins has a fin recess for receiving the tube protrusion; a light source circuit board contacting the heat dissipation structure and including a circuit layer for The at least one illuminating element is electrically connected to the circuit layer; and a driving circuit board is disposed in the central tube body and electrically connected to the light source circuit board, wherein the driving circuit board is used to drive the light source circuit board body The at least one light emitting element outputs illumination light. The illuminating device of claim 8, wherein each of the heat dissipating fins has a first joint portion and a second joint portion, and the first joint portion of any of the heat sink fins is used for The second joints of the adjacent fins are coupled to each other. The illumination device of claim 9, wherein each of the heat dissipation fins further has a first surface and a second surface, the second surface contacting the peripheral surface of the central tube, and the A surface and the second surface together form an L-shape. The illuminating device of claim 10, wherein when each of the heat dissipating fins has the fin protrusion, the second surface is formed on the fin protrusion, or the second surface is not formed. In the fin protrusion, when each of the heat dissipation fins has the fin recess, the second surface is formed in the fin recess, or the second surface is not formed in the fin recess. The illuminating device of claim 10, wherein the first bonding portion of each of the heat dissipating fins is a fin hole, and the fin is formed on the first surface, and each The second joint portion of the heat dissipating fin is a flange formed at an extending end of the second surface; wherein the flange of each of the heat dissipating fins is inserted into the heat dissipating fin adjacent thereto The fins are perforated such that each of the heat dissipation fins is engaged with the heat dissipation fins adjacent thereto. The illuminating device of claim 10, wherein each of the heat dissipating fins further has a third surface perpendicular to the first surface and the second surface, the second surface contacting the light source circuit board. The illuminating device of claim 8, wherein the illuminating element is a light emitting diode. A heat dissipation structure includes a central tube body; and a plurality of heat dissipation fins collectively surrounding a surrounding surface of the central tube body, and each of the heat dissipation fins has a first joint portion and a second joint portion, The first bonding portion of the heat dissipating fin is configured to be coupled to the second bonding portion of the adjacent heat dissipating fin; wherein each of the heat dissipating fin forms a limiting relationship with the central tube to prevent the The central tube is detached from the plurality of fins. The heat dissipation structure of claim 15, wherein each of the heat dissipation fins has a fin protrusion, and the central tube body has a peripheral surface formed to receive each of the fin protrusions. a tube body recess; or the central tube body has a tube body protrusion formed on the peripheral surface, and each of the heat dissipation fins has a fin recess for receiving the tube body protrusion. The heat dissipation structure of claim 16, wherein each of the heat dissipation fins further has a first surface and a second surface, the second surface contacting the peripheral surface of the central tube, and the A surface and the second surface together form an L-shape. The heat dissipation structure of claim 17, wherein when each of the heat dissipation fins has the fin protrusion, the second surface is formed on the fin protrusion, or the second surface is not formed. In the fin protrusion, when each of the heat dissipation fins has the fin recess, the second surface is formed in the fin recess, or the second surface is not formed in the fin recess. The heat dissipation structure of claim 17, wherein the first bonding portion of each of the heat dissipation fins is a fin hole, and the fin hole is formed on the first surface, and each The second joint portion of the heat dissipating fin is a flange formed at an extending end of the second surface; wherein the flange of each of the heat dissipating fins is inserted into the heat dissipating fin adjacent thereto The fins are perforated such that each of the heat dissipation fins is engaged with the heat dissipation fins adjacent thereto. The heat dissipation structure according to claim 15, wherein the central pipe system has a cylindrical shape or a column shape, or the central pipe system is made of a copper material or an aluminum material.