TWM468630U - Projecting lamp and lantern - Google Patents

Description

Projection light

This creation relates to a projection luminaire, and more particularly to a projection luminaire that uses a gas-liquid phase heat-dissipating cycle for cooling.

Light-Emitting Diode (LED) light source is an emerging light-emitting element. Although it can not replace traditional incandescent lamps on a large scale, it has the advantages of long working life, energy saving and environmental protection. I am optimistic. In addition, the module consisting of multiple light-emitting diodes can produce high-power, high-brightness light sources, which can completely replace the existing incandescent lamps for indoor and outdoor lighting. It is also expected to replace the existing incandescent lamps widely and revolutionarily. The light source has become the main light-emitting part that meets the theme of energy conservation and environmental protection.

However, at present, most of the heat dissipation methods of the light-emitting diodes use heat conduction for heat dissipation, and the effect thereof is not satisfactory, and the heat dissipation fins need to be adjacent to the light-emitting diodes, thereby causing difficulty in space design of the electronic device. Therefore, how to design a heat dissipation system for a light-emitting diode can effectively cool the light-emitting diode, and also has good space design flexibility, which is an important problem that the relevant research and development personnel in the industry need to solve.

In view of the above problems, this creation is about a projection lamp, In order to improve the current heat-emitting diodes, the problem of poor heat dissipation.

The projection lamp of an embodiment of the present invention comprises a light emitting component and a Heat sink. The illuminating member has a light emitting surface. The normal vector of the illuminating surface is perpendicular to the direction of an absolute vertical direction, and the normal vector of the illuminating surface and the absolute vertical direction are oriented in the same direction; One side of the heat sink is in thermal contact with the light emitting member. The heat sink has a first chamber, a second chamber, and a second flow path connected between the first chamber and the second chamber. The distance from the second chamber to the illuminating member is greater than the distance from the first chamber to the illuminating member, and the first chamber is filled with a working fluid. When the working fluid absorbs the heat generated by the illuminating member, the working fluid is vaporized into a gas type by the liquid type, and flows into the second chamber by one of the two flow paths for heat dissipation. After the working fluid in the second chamber is condensed into a liquid form by the gas type, it is returned to the first chamber by the other of the second flow paths.

The projection lamp of the present creation forms a closed by the arrangement of two flow paths The circuit uses the gas-liquid change of the working fluid to conduct heat conduction in the closed loop convection. This structural design does not require the driving of the active components, and can achieve the effect of greatly improving the heat dissipation efficiency.

The above description of the content of this creation and the following implementers The description is intended to illustrate and explain the principles of the present invention and to provide a further explanation of the scope of the patent application of the present invention.

10‧‧‧Projected lamps

12‧‧‧Lighting parts

125‧‧‧Glossy

14‧‧‧ Heat sink

141‧‧‧ first ontology

142‧‧‧Second ontology

1425‧‧‧ bottom

145‧‧‧ first chamber

146‧‧‧ second chamber

148‧‧‧ flow path

149‧‧‧Fixing fin set

19‧‧‧Working fluid

19'‧‧‧ gas type working fluid

20‧‧‧Projected lamps

22‧‧‧Lighting parts

225‧‧‧Glossy

24‧‧‧ Heat sink

241‧‧‧First Ontology

242‧‧‧Second ontology

2425‧‧‧ bottom

245‧‧‧ first chamber

246‧‧‧ second chamber

248‧‧‧ flow path

249‧‧‧Fixing fin set

29‧‧‧Working fluid

29'‧‧‧ gas type working fluid

30‧‧‧Projected lamps

32‧‧‧Lighting parts

325‧‧‧Glossy surface

34‧‧‧ Heat sink

341‧‧‧ Ontology

345‧‧‧First chamber

346‧‧‧ second chamber

348‧‧‧ runner

349‧‧‧Fixing fin set

39‧‧‧Working fluid

39'‧‧‧Gas type working fluid

1 is a three-dimensional structure of a projection lamp according to a first embodiment of the present creation Figure.

Fig. 2 is a cross-sectional view of Fig. 1.

Figure 3 is a perspective view of the structure of the projection lamp according to the second embodiment of the present creation Figure.

Figure 4 is a cross-sectional view of Figure 3.

Figure 5 is a perspective view of the structure of the projection lamp according to the third embodiment of the present creation Figure.

Figure 6 is a cross-sectional view of Figure 5.

Please refer to Figure 1 and Figure 2. Fig. 1 is a perspective view showing the structure of a projection lamp according to a first embodiment of the present invention. Fig. 2 is a cross-sectional view of Fig. 1.

The projection lamp 10 of the first embodiment of the present invention includes a light-emitting member 12 and a heat sink 14. The illuminating member 12 has a light emitting surface 125. The normal vector N1 of the light-emitting surface 125 is an acute angle θ1 with an absolute vertical direction V, but is not limited thereto. In other embodiments, the normal vector N1 of the light-emitting surface 125 may also face the same direction as the absolute vertical direction V; the absolute vertical direction V system described herein is the same as the direction of the gravity. The light-emitting component 12 of the present invention is a solid-state light-emitting component. In the present embodiment, the light-emitting component 12 is exemplified by a light-emitting diode (LED), but is not limited thereto. The heat sink 14 has a first body 141, a second body 142, a first chamber 145, a second chamber 146, a second flow path 148, a heat dissipation fin set 149 and a working fluid. 19.

One side of the first body 141 is in thermal contact with the illuminating member 12. First chamber The 145 is located inside the first body 141. The second chamber 146 is located inside the second body 142. The heat dissipation fin group 149 is disposed on the second body 142. The second body 142 has a bottom surface 1425. The bottom surface 1425 is located between the second chamber 146 and the first body 141. The normal vector N2 of the bottom surface 1425 is parallel to the normal vector N1 of the light exit surface 125. The second flow path 148 is located between the first chamber 145 and the second chamber 146 and communicates with the first chamber 145 and the second chamber 146. It should be noted that, in this embodiment, the number of the flow channels 148 is two, but is not limited thereto. In other embodiments, the number of runners 148 can be adjusted as appropriate. The distance from the second chamber 146 to the illuminating member 12 is greater than the distance from the first chamber 145 to the illuminating member 12. The first chamber 145 is filled with a working fluid 19. In the present embodiment, the working fluid 19 is water, but is not limited thereto. In other embodiments, the working fluid 19 can also be cold coal, methanol, ethanol, diethyl ether or other liquid materials that can assist in heat transfer. Further, in the present embodiment, the cross-sectional area A1 of the flow path 148 is much smaller than the cross-sectional area A2 of the second chamber 146.

Next, the heat generated by the illuminating member 12 will be dissipated for the heat sink 14. The process is explained.

When the illuminating member 12 generates heat, the thermal energy is transmitted to the first body The first chamber 145 in the first chamber 145, after the working fluid 19 in the first chamber 145 absorbs the heat generated by the illuminating member 12, is vaporized into a gaseous working fluid 19' by a liquid type. The gaseous working fluid 19' will rise and follow one of the two runners 148 A first direction D1 flows to the second chamber 146 inside the second body 142 (as shown in the second figure). In this embodiment, since the heat dissipation fin group 149 is disposed on the second body 142, the heat energy of the gas type working fluid 19' can be dissipated to the external environment by the heat dissipation fin group 149, but is not limited thereto. . In other embodiments, the thermal energy of the gaseous working fluid 19' may also be dissipated directly to the external environment by the second body 142. Since the gaseous type working fluid 19' dissipates its own thermal energy after flowing into the second chamber 146, the gaseous type working fluid 19' gradually condenses into the working liquid 19 of the original liquid type. At this time, the liquid type working fluid 19 flows into the other of the second flow paths 148 and flows back to the first chamber 145 along a second direction D2. Further, in the present embodiment, since the cross-sectional area A1 of the flow path 148 is much smaller than the cross-sectional area A2 of the second chamber 146, there is a pressure difference between the flow path 148 and the second chamber 146. In this manner, the gaseous working fluid 19' is jetted to the second chamber 146 in a pattern of the jet stream R1 along the first direction D1, thereby accelerating heat conduction and convection.

In the above-described projection lamp 10 of the first embodiment of the present invention, the work The liquid 19 is vaporized into a gaseous working fluid 19' to accelerate heat conduction, and the gaseous working fluid 19' flows from one of the second flow passages 148 to the second chamber 146 for heat dissipation. After the gas type working fluid 19' is condensed into the original liquid type working fluid 19, it is returned to the first chamber 145 via the other of the second flow passages 148, thereby forming a circulation closed loop, and then using the circulation closed The natural convection of the circuit achieves better heat dissipation and eliminates the need for active components. In addition, due to the arrangement of the second flow path 148, the projection lamp 10 of the embodiment can be remotely dispersed. The heat, that is, the structure of the heat conducting portion and the structure of the heat radiating portion can be separated, which makes the space design on the overall structure more convenient. In the present embodiment, the gaseous working fluid 19' is sprayed in the first direction D1 in the form of the jet stream R1 to the second chamber 146, thereby accelerating heat conduction and convection to improve heat transfer efficiency.

This creation also provides a different structure of the projection lamp With. Please refer to Figures 3 and 4. Fig. 3 is a perspective view showing the structure of a projection lamp according to a second embodiment of the present invention. Figure 4 is a cross-sectional view of Figure 3.

The projection lamp 20 of the second embodiment of the present invention comprises a illuminating member 22 and a heat sink 24. The illuminating member 22 has a light emitting surface 225. The normal vector N3 of the light-emitting surface 225 is an acute angle θ 2 with an absolute vertical direction V, but is not limited thereto. The illuminating member 22 of the present invention is a solid-state illuminating element. In the present embodiment, the illuminating member 22 is exemplified by a light-emitting diode (LED), but is not limited thereto. The heat sink 24 has a first body 241, a second body 242, a first chamber 245, a second chamber 246, a second flow channel 248, a heat sink fin set 249, and a working fluid 29.

One side of the first body 241 is in thermal contact with the light emitting member 22. First chamber 245 is located inside the first body 241. The second chamber 246 is located inside the second body 242. The heat dissipation fin set 249 is disposed on the second body 242. The second body 242 has a bottom surface 2425. The bottom surface 2425 is located between the second chamber 246 and the first body 241. The normal vector N4 of the bottom surface 2425 is at an acute angle to the normal vector N3 of the light exit surface 225. In the present embodiment, the normal vector N4 of the bottom surface 2425 is parallel to the absolute vertical direction V, but this is not intended to limit the creation. Second runner 248 is located The first chamber 245 and the second chamber 246 are connected between the first chamber 245 and the second chamber 246. It should be noted that, in this embodiment, the number of the flow channels 248 is two, but is not limited thereto. In other embodiments, the number of flow channels 248 can be adjusted as appropriate. The distance from the second chamber 246 to the illuminating member 22 is greater than the distance from the first chamber 245 to the illuminating member 22. The first chamber 245 is filled with a working fluid 29. In the present embodiment, the working fluid 29 is water, but is not limited thereto. In other embodiments, the working fluid 29 can also be cold coal, methanol, ethanol, diethyl ether or other liquid materials that can assist in heat transfer. Further, in the present embodiment, the cross-sectional area A1 of the flow path 248 is much smaller than the cross-sectional area A2 of the second chamber 246.

Due to the heat dissipation of the projection lamp 20 of the second embodiment of the present creation The reason is the same as that of the projection lamp 10 of the first embodiment, and therefore will not be described herein.

The projection lamps of this creation can also have different structural designs, please refer to See Figure 5 and Figure 6. Fig. 5 is a perspective view showing the structure of a projection lamp according to a third embodiment of the present creation. Figure 6 is a cross-sectional view of Figure 5.

The projection lamp 30 of the third embodiment of the present invention comprises a illuminating member 32 and a heat sink 34. The illuminating member 32 has a light emitting surface 325. The normal vector N5 of the light exit surface 325 is an acute angle θ 3 with an absolute vertical direction V. In this embodiment, the illuminating member 32 is a Light-Emitting Diode (LED), but is not limited thereto. The heat sink 34 has a body 341, a first chamber 345, a second chamber 346, a second flow channel 348, a heat sink fin set 349, and a working fluid 39.

One side of the body 341 is in thermal contact with the illuminating member 32. First chamber 345. The second chamber 346 and the second flow path 348 are located inside the body 341. The heat dissipation fin set 349 is disposed on a side of the body 342 away from the light emitting member 32. The second flow path 348 communicates with the first chamber 345 and the second chamber 346. It should be noted that, in this embodiment, the number of the flow channels 348 is two, but is not limited thereto. In other embodiments, the number of flow channels 348 can be adjusted as appropriate. The distance from the second chamber 346 to the illuminating member 32 is greater than the distance from the first chamber 345 to the illuminating member 32. The first chamber 345 is filled with a working fluid 39. In the present embodiment, the working fluid 39 is water, but is not limited thereto. In other embodiments, the working fluid 39 can also be cold coal, methanol, ethanol, diethyl ether or other liquid materials that can assist in heat transfer. Further, in the present embodiment, the cross-sectional area A1 of the flow path 348 is much smaller than the cross-sectional area A2 of the first chamber 345.

Due to the heat dissipation of the projection lamp 30 of the third embodiment of the present creation The reason is the same as that of the projection lamp 10 of the first embodiment, and therefore will not be described herein.

In addition, if the projection lamp of this creation uses high-power illumination It can also be used as a patio light.

According to the projection lamp of the above embodiment, the arrangement of the two flow paths A circulating closed loop is formed, and the gas-liquid change of the working fluid is used to conduct heat conduction in the circulating closed loop for convection. This structural design does not require the driving of the active component, and can achieve the effect of greatly improving the heat dissipation efficiency.

In addition, since the cross-sectional area of the flow channel is much smaller than the cross-section of the second chamber The cross-sectional area has a pressure difference between the flow path and the second chamber. Thereby, the gaseous type working fluid is sprayed into the second chamber in the form of the jet stream, thereby accelerating the guide. Heat and convection to achieve the effect of improving thermal conductivity.

Although the present invention has been described above with reference to the preferred embodiments thereof, it is not intended to limit the present invention, and anyone skilled in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of patent protection of the creation shall be subject to the definition of the scope of the patent application attached to this specification.

10‧‧‧Projected lamps

12‧‧‧Lighting parts

125‧‧‧Glossy

14‧‧‧ Heat sink

141‧‧‧ first ontology

142‧‧‧Second ontology

1425‧‧‧ bottom

145‧‧‧ first chamber

146‧‧‧ second chamber

148‧‧‧ flow path

149‧‧‧Fixing fin set

19‧‧‧Working fluid

19'‧‧‧ gas type working fluid

Claims (8)

A projection lamp comprising: a light-emitting member having a light-emitting surface, wherein a normal vector of the light-emitting surface has an acute angle with an absolute vertical direction or a normal vector of the light-emitting surface faces the same direction as the absolute vertical direction; a heat dissipating member, one side of which is in thermal contact with the illuminating member, the heat dissipating member having a first chamber, a second chamber, and a second flow path connected between the first chamber and the second chamber, The distance from the second chamber to the illuminating member is greater than the distance from the first chamber to the illuminating member, and the first chamber is filled with a working fluid; wherein when the working fluid absorbs heat generated by the illuminating member, the The working fluid is vaporized into a gas type by a liquid type, and flows into the second chamber by one of the two flow passages to dissipate heat, and the working fluid located in the second chamber is condensed into a liquid type by a gas type. Reflowing from the other of the two flow channels to the first chamber. The projection lamp of claim 1, wherein a cross-sectional area of each of the two flow channels is smaller than a cross-sectional area of the second chamber, so that the working fluid of the gas type is in the form of a jet stream One of the two flow paths is sprayed to the second chamber. The projection lamp of claim 1, wherein the heat sink further comprises a body and a heat sink fin group, wherein one side of the body is in thermal contact with the light emitting member, and the heat sink fin group is disposed on the body away from the light emitting One side of the piece, the first cavity The chamber, the second chamber and the second flow channel are located within the body. The projection lamp of claim 1, wherein the heat sink further comprises a first body, a second body and a heat sink fin group, wherein one side of the first body is in thermal contact with the light emitting component, the first The second chamber is located in the second body, the heat dissipation fin group is disposed on the second body, and the second body has a bottom surface, the bottom surface is located in the second chamber The normal vector of the bottom surface is parallel to the normal vector of the light exiting surface, and the two flow paths are located between the first body and the second body. The projection lamp of claim 1, wherein the heat sink further comprises a first body, a second body and a heat sink fin group, wherein one side of the first body is in thermal contact with the light emitting component, the first The second chamber is located in the second body, the heat dissipation fin group is disposed on the second body, and the second body has a bottom surface, the bottom surface is located in the second chamber The normal vector of the bottom surface and the normal vector of the light exit surface are at an acute angle with the first body, and the two flow paths are located between the first body and the second body. The projection lamp of claim 1, wherein the working fluid is water, cold coal, methanol, ethanol, diethyl ether or other liquid substances that can assist heat conduction. The projection lamp of claim 1, wherein the illuminating member is a solid state illuminating element. The projection lamp of claim 1, wherein the illuminating member is a light emitting diode.