High efficiency illumination light source

High-efficiency lighting source structure

This case belongs to the field of lighting devices, and particularly relates to a high-efficiency lighting light source structure capable of rapid heat dissipation and convenient assembly.

According to the light emitting diode (LED) has the advantages of low power consumption, long life, low waste heat and high brightness, it has been widely used in lighting applications in recent years, such as: street lamps, indoor lighting lamps, table lamps Even flashlights, etc. As for the lighting fixture using LED as a light source, a light-emitting chip (or LED chip) is used to emit light after the current is turned on. When the light-emitting chip is bright, it has a problem of heating and heating, especially some The light emitting chip of the power also emits high temperature during use, which causes the control circuit board of the lighting fixture to overheat and quickly damage, which also causes a significant reduction in the service life. Moreover, the light emitting chip will still have light when it is used under high temperature. This phenomenon affects the lighting effect.

Therefore, this type of lighting fixture using LED must quickly dissipate the high temperature during use by means of a heat dissipation module, so as to improve the service life and maintain the lighting effect. Most of the existing heat dissipation modules use forced convection by fans or passive heat dissipation using heat dissipation fins, which also drive the heat away by the flow of air. However, the cooling module using forced convection of the fan must use external power or be electrically connected to the control circuit board, which will cause power loss. In general, the most common is to connect the LED chip and the control circuit board with a heat dissipation base, and the heat emitted by the control circuit board and the LED chip is conducted to the outside through heat conduction, so the heat should be dissipated. The design of the base must consider the combination of insulation and heat dissipation, so part of the heat dissipation base is made of resin material, and as the housing with the control circuit, the material of the heat dissipation base is often used for good heat dissipation effect and The aluminum alloy is easy to shape, but because of its good conductivity, the LED chip may be short-circuited due to improper assembly. At present, in the field of LED lighting lamps, the heat dissipation effect (efficiency) and the variability corresponding to different lamps have also become The goal of the industry's concerted efforts.

In view of this, the author provides a high-efficiency lighting source structure, which uses a modular reflection cup, a first base, a metal support, and a second base to assemble the structure to form a light-emitting chip structure. After being packaged, it becomes an illumination light source. Since the reflection cup, the first base and the second base all have the effect of heat conduction, a high-power light emitting chip can be used to become a high-efficiency illumination light source. Furthermore, the second base can also be easily combined with fins or thermally conductive posts, which not only can greatly improve the heat dissipation effect, but also can be used as a light source for general lighting.

One of the goals of this creation is to provide a high-efficiency lighting source structure that can quickly dissipate heat, and increase heat dissipation efficiency by increasing the heat dissipation area. Therefore, high-power light-emitting chips can be used to increase brightness.

Another purpose of this creation is to provide a high-efficiency lighting source structure, which can be used together with fins or thermally conductive posts to greatly enhance the heat dissipation effect and the scope of its application.

In order to achieve the above purpose, the high-efficiency lighting source structure of this creation is designed to be illuminated after being electrically connected to an external power source, and includes: a reflection cup having a cup mouth, which is in the shape of an inverted cone, and the There is an included angle between the inner wall of the cup mouth and the horizontal plane; a first base is provided on one side of the reflection cup, and the first base has at least one through hole, which is located on the same centerline with the cup mouth At least one pair of metal brackets is disposed between the reflection cup and the first base, and a thermally conductive insulating glue is filled in between, so that the metal brackets and the reflection cup and the first base are respectively Electrical insulation; at least one second base having a protruding portion for correspondingly passing through the through hole of the first base, and an end surface of the protruding portion is flat; at least one light emitting chip, It is arranged on the end surface of the protruding part of the second base and is electrically connected with the metal brackets; and a packaging part is covered at the mouth of the reflection cup.

In one embodiment, the through hole is provided with a threaded portion, and the protruding portion is provided with a threaded portion, so that the second base is screwed into the first base to accelerate the first base. A combination of a base and the second base.

In one embodiment, the other side of the second base with respect to the protruding portion has a mounting portion, and a fin is further provided in the mounting portion to increase the heat dissipation area of the second base. Improve cooling efficiency. Furthermore, in order to facilitate the assembly between the fin and the second base, the mounting portion is provided with a thread, and one side of the fin has a screw tooth portion screwed into the mounting portion. In addition, in order to improve the aesthetics and protection during use, the high-efficiency lighting source structure of this creation has an outer cover for covering the reflection cup and a part of the fins.

Or is there a mounting portion on the other side of the second base opposite to the protruding portion, a heat conducting column is further provided in the mounting portion, and the heat conducting column is provided with a screw for screwing in the mounting portion, The thermal conductive column system can increase the convenience during assembly, and also has the effect of thermal conduction. Furthermore, at least one fin can be provided on the thermally conductive post by means of screwing or pressing, and the purpose of improving heat dissipation efficiency can also be achieved. The above two ways of combining the second base with the fins or the thermally conductive pillars have more elastic change space in use.

In order to achieve the above purpose, the present invention provides another embodiment. The high-efficiency lighting source structure includes: a reflection cup having a mouth, which is in the shape of an inverted cone, and the inner wall of the mouth and the horizontal plane There is an included angle between them; a first base is provided on one side of the reflection cup, and the first base has at least one through hole, the through holes are located in the mouth of the cup; at least a pair of metal brackets are provided on the Between the reflection cup and the first base, a thermally conductive insulating glue is filled in between, so that the metal brackets are electrically insulated from the reflection cup and the first base, respectively; at least one second base is connected through It is set in the through hole of the first base; at least one light-emitting chip is set on the end surface of the second base and is electrically connected with the metal brackets; and a packaging part is arranged to cover the reflection cup. The mouth of the cup.

Wherein, when the second base is implemented by a disc, a thermally conductive post is provided below the second base to allow the thermally conductive post to pass through the through hole, and the thermally conductive post is provided with a screw for screw setting. A fin. If the second base is implemented in a round bar arrangement, the second base is fixed in the through hole by welding or pressing. If the second base is provided with a screw, the through hole is provided with a threaded portion to screw the second base into the through hole, and the second base passes through the through hole. One section is provided with a fin for the screw. It can provide more flexible implementation patterns.

In order for your reviewers to understand the content of this creation clearly, I would like to refer to the following descriptions and drawings.

Please refer to FIG. 1 and FIG. 2, which are an exploded perspective view of the first embodiment of the present invention and a sectional view after assembly. As shown in the figure, the high-efficiency lighting source structure 10 of this creation can be illuminated after being electrically connected to an external power source (not shown). The high-efficiency lighting source structure 10 includes a reflective cup 11, A first base 12, a pair of metal supports 13, a second base 14, a light emitting chip 15 and a packaging portion 16.

Wherein, the reflection cup 11 has a cup opening 111 and is in the shape of an inverted cone, so that there is an included angle between the inner wall of the cup opening 111 and the horizontal plane, and the set angle of the included angle can be changed according to the needs during use. Used to adjust the diffusion angle of light.

The first base 12 is disposed on one side (below) of the reflection cup 11, and the first base 12 has a through hole 121 so that the through hole 121 and the cup opening 111 are located on the same center line. It should be noted that the reflective cup 11 and the first base 12 are filled with an insulating and thermally conductive adhesive 17, so that the reflective cup 11 and the first base 12 are electrically insulated, and the two can be ensured. Thermal conductivity effect.

The pair of metal brackets 13 are respectively disposed between the reflection cup 11 and the first base 12, and the two metal brackets 13 are located on two opposite sides. One end of the metal brackets 13 is exposed outside the reflection cup 11. Inside the cup opening 111, the other end is located outside the first base 12. Because the reflective cup 11 and the first base 12 have the thermally conductive insulating glue 17, the metal brackets 13 are also separated from the The reflection cup 11 and the first base 12 are electrically insulated.

The second base 14 has a protruding portion 141 for passing through the through hole 121 of the first base 12, and an end surface of the protruding portion 141 is flat, so that the protruding portion 141 is formed. A plane is formed between the end surface of the first base 14 and the metal bracket 13 on both sides.

The light-emitting chip 15 is disposed on an end surface of the protruding portion 141 of the second base 14 through a step of solidifying a crystal, and is electrically connected to the metal supports 13 through a step of wire bonding.

The packaging portion 16 is selected from common packaging materials such as epoxy resin, and the packaging portion 16 is used to completely cover the cup opening 111 of the reflection cup 11 to completely enclose the light-emitting chip 15 therein. The surface of the packaging portion 16 is formed with a structure similar to a convex lens, and is used to increase the diffusion angle of the light emitting chip 15 when it is illuminated.

Please refer to FIG. 3, which is another implementation form derived from the first embodiment of this creation. As shown in the figure, the through hole 121 attached to the first base 12 has a threaded portion 122 therein, and a screw portion 142 is provided outside the protruding portion 141 corresponding to the second base 14. The second base 14 is disposed in the first base 12 by screwing, so as to accelerate the combination of the first base 12 and the second base 14.

Please refer to FIG. 4, which is another implementation form derived from the first embodiment of the present invention. As shown in the figure, the other side of the second base 14 opposite to the protruding portion 141 has a mounting portion 143, and a fin 18 is further provided in the mounting portion 143, so that the second base can be enlarged. The heat dissipation area of the base 14 improves the heat dissipation efficiency. Furthermore, in order to facilitate the assembly between the fin 18 and the second base 14, please refer to FIG. 5 again, which is an implementation form derived from FIG. 4. As shown in the figure, one of the mounting portions 143 is threaded, and one side of the fin 18 has a threaded portion 181 for fast screwing in the mounting portion 143. In addition, in order to improve the aesthetics and protection during use, the high-efficiency lighting source structure 10 further has a cover 19, which is a cylindrical structure, and one end of the cover 19 is covered by the reflection cup 11. The other end is covered on a part of the fin, so as to cover the metal bracket 13, the first base 12 and the second base 14 therein.

Please refer to FIG. 6, which is a schematic structural diagram of the second embodiment of the present invention. As shown in the figure, the reflection cup 11, the first base 12, the metal brackets 13, the second base 14, the light-emitting chip 15, and the packaging portion 16 are the same as those in the first embodiment, where: The second side of the second base 14 opposite to the protruding portion 141 has a mounting portion 143, and a heat conducting post 110 is further disposed in the mounting portion 143. Or please refer to FIG. 7, which is another implementation aspect of the second embodiment of the present invention. As shown in the figure, the thermally conductive post 110 is provided with a screw for screwing in the mounting portion 143. The thermally conductive post 110 can increase the convenience during assembly and also has the effect of conducting heat by itself. Please refer to FIG. 8, which is an embodiment derived from FIG. 7. As shown in the figure, at least one fin 18 is provided on the thermally conductive post 110 in a screw manner, and two fins 18 are provided side by side in the figure. Please refer to FIG. 9 again, which is another implementation aspect derived from FIG. 7. As shown in the figure, a large heat sink 120 is provided with a plurality of mounting holes 1201 to form the heat conducting posts 110 of the high-efficiency lighting source structure 10 by screwing on the heat sink 120 to form A large lighting fixture that provides a wider range of lighting effects.

Please refer to FIGS. 10 and 11, which are perspective exploded views and a cross-sectional view after assembly of the third embodiment of the present invention. As shown in the figure, the high-efficiency lighting source structure 20 of the third embodiment also has a reflection cup 21, a first base 22, a pair of metal supports 23, three second bases 24, and three light emitting chips. 25 And a packaging department 26. 25 and a packaging portion 26.

The reflecting cup 21 is the same as the first embodiment and has a cup opening 211, which has an inverted cone shape, and an angle is formed between an inner wall of the cup opening 211 and a horizontal plane. The first base 22 is provided on one side of the reflecting cup 21, and the first base 22 has three through holes 221. After the reflecting cup 21 and the first base 22 are combined, the first base 22 The holes 221 are all located in the cup opening 211. The pair of metal brackets 23 are disposed between the reflection cup 21 and the first base 22, and a thermally conductive insulating glue 231 is filled in between, so that the metal brackets 23 and the reflection cup 21 and the first base are respectively filled. 22 is electrically insulated. The three second bases 24 are all disc-shaped structures. The second bases 24 are respectively inserted in the corresponding through holes 221 of the first base 22 and are under the second base 24. There is a thermally conductive post 241 that allows the thermally conductive post 241 to pass through the through hole, and the thermally conductive post 241 is provided with a screw and is provided with a fin 27. The three light emitting chips 25 are respectively disposed on the end faces of the second base 24 and are electrically connected to the metal supports 23. The packaging portion 26 is disposed on the mouth 211 of the reflection cup 21.

Please refer to FIG. 12, which is another implementation aspect derived from the third embodiment of this creation. As shown in the figure, the second base 24 is a round rod, so that the second base 24 is fixed in the corresponding through hole 221 of the first base 22 by welding or pressing. Please refer to FIG. 12, which is another implementation form derived from the third embodiment of the present invention. Wherein, the second base 24 is provided with a screw, and the corresponding through hole 221 is provided with a threaded portion 2211 to screw the second base 24 into the through hole 221, and the second base A section of the seat 24 passing through the through hole 221 is provided with a fin 27 for screwing.

In summary, the high-efficiency lighting source structures 10 and 20 of this creation utilize the modular reflection cups 11, 21, the first bases 12, 22, the metal brackets 13, 23, and the second base 14 After assembly of components such as, 24 and 24 to form a structure in which the light-emitting wafers 15 and 25 are placed, the package becomes an illumination light source. The combination of the second base and the fins or the thermally conductive pillars is used. It has more flexibility to change, as shown in Figure 4, Figure 5, Figure 8, Figure 9, Figure 9, Figure 12 and Figure 13, and can use the high heat dissipation characteristics of this creation, and use high power The light-emitting chips 15 and 25 become a high-efficiency lighting source structure 10 and 20.

However, the above are only the preferred embodiments of this creation, and are not intended to limit the scope of this creation. Others such as the material and size of the reflection cup, the first base or the second base Or the shape, or the material or size of the fins or the thermally conductive pillars are also included in the scope of this case; therefore, those who have ordinary knowledge in the technical field or are familiar with this technology, etc. Those who are effective or easy to change, and make equal changes and modifications without departing from the spirit and scope of this creation, shall all be covered by the patent scope of this creation.

<p>10. . .High-efficiency lighting source structure</p><p>11. . .Reflection cup</p><p>111. . .Cup mouth</p><p>12. . .First base</p><p>121. . .Through hole</p><p>122. . .Threaded part</p><p>13. . .Metal stand</p><p>14. . .Second base</p><p>141. . .Bulge</p><p>142. . .Screw teeth</p><p>143. . .Mounting Department</p><p>15. . .Light emitting chip</p><p>16. . .Packaging Department</p><p>17. . .Thermal insulation adhesive</p><p>18. . .Fin</p><p>181. . .Screw teeth</p><p>19. . .Cover</p><p>110. . .Thermal pillar</p><p>120. . .heat sink</p><p>1201. . .Mounting holes</p><p>20. . .High-efficiency lighting source structure</p><p>twenty one. . .Reflection cup</p><p>211. . .Cup mouth</p><p>twenty two. . .First base</p><p>221. . .Through hole</p><p>2211. . .Threaded part</p><p>twenty three. . .Metal stand</p><p>231. . .Thermal insulation adhesive</p><p>twenty four. . .Second base</p><p>241. . .Thermal pillar</p><p>25. . .Light emitting chip</p><p>26. . .Packaging Department</p><p>27. . .Fin</p>

FIG. 1 is an exploded perspective view of the first embodiment of the creation.

Fig. 2 is a sectional view of the first embodiment of the present invention after assembly.

Fig. 3 is another implementation aspect derived from the first embodiment of the creation.

FIG. 4 is another implementation aspect derived from the first embodiment of the creation.

Fig. 5 is an embodiment derived from Fig. 4.

FIG. 6 is a schematic structural diagram of a second embodiment of the creation.

FIG. 7 is another implementation aspect of the second embodiment of the creation.

FIG. 8 is an implementation manner derived from FIG. 7.

FIG. 9 is another embodiment derived from FIG. 7.

FIG. 10 is an exploded perspective view of the third embodiment of the creation.

FIG. 11 is a cross-sectional view of the third embodiment after assembly.

FIG. 12 is another implementation aspect derived from the third embodiment of the creation.

FIG. 13 is another implementation aspect derived from the third embodiment of the creation.