US20110317423A1 - System in Package High Power Highly Efficient Diode Lamp - Google Patents
System in Package High Power Highly Efficient Diode LampDownload PDFInfo
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- US20110317423A1 US20110317423A1US13/224,624US201113224624AUS2011317423A1US 20110317423 A1US20110317423 A1US 20110317423A1US 201113224624 AUS201113224624 AUS 201113224624AUS 2011317423 A1US2011317423 A1US 2011317423A1
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- led light
- diode lamp
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Classifications
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
- F21V29/507—Cooling arrangements characterised by the adaptation for cooling of specific components of means for protecting lighting devices from damage, e.g. housings
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/51—Cooling arrangements using condensation or evaporation of a fluid, e.g. heat pipes
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
- F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
- F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
- F21V29/767—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section the planes containing the fins or blades having directions perpendicular to the light emitting axis
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
- F21V29/77—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
- F21V29/773—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/85—Packages
- H10H20/858—Means for heat extraction or cooling
- H10H20/8586—Means for heat extraction or cooling comprising fluids, e.g. heat-pipes
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
- F21V29/89—Metals
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2105/00—Planar light sources
- F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/30—Semiconductor lasers
Definitions
- the present inventionrelates to diode lamps with high power and high efficiency. More specifically, the diode lamps in this invention are system-in-package lighting devices.
- LEDslight-emitting diodes
- LEDshave many advantages, such as low power consumption, quick reaction, being shake-endurable, and being suited to mass production
- lighting products that adopts LEDs as light sourcesare more and more popular.
- the temperature of high power LEDs in prior artswill be too high.
- the lighting efficiency of LEDsis thus decreased, and their light intensity can not be further increased. Therefore, every product that adopts a high power and highly efficient LED needs good heat-dissipating mechanisms.
- FIG. 1illustrates a lighting device integrated with a heat-dissipating device in prior arts.
- plural LEDs 12are mounted on the heat-conducting plate 10 .
- Many heat-dissipating fins 14are disposed around the periphery of the heat-conducting plate 10 . Because the distances between the LEDs 12 are too far, this lighting device cannot provide lighting effects similar to those of point light sources.
- FIG. 2illustrates a lighting device disclosed in the No. 568,358 Taiwanese patent.
- a red LED 21 , a green LED 22 , and a blue LED 23are disposed on a control circuit 24 .
- the control circuit 24is used for controlling the LEDs.
- the base 25 under the control circuit 24helps to dissipate heat for the LEDs and the control circuit 24 .
- the disadvantage of the lighting device shown in FIG. 2is that the control circuit 24 is too close to the LEDs. When the LEDs generate heat, the operation of the control circuit 24 is easily affected and even damaged.
- this inventionprovides high power and highly efficient diode lamps. More specifically, the diode lamps in this invention are system-in-package lighting devices.
- the diode lamps according to the present inventionnot only can effectively solve the heat-dissipating problem in prior arts but can also provide lighting effects equivalent to those of point light sources.
- the first main purpose of this inventionis to provide a system-in-package, high power, and highly efficient diode lamp.
- One preferred embodiment, according to this inventionis a diode lamp which includes a heat-conducting/heat-dissipating module, a LED light module, an optical module, and a control circuit module.
- the heat-conducting/heat-dissipating moduleincludes a heat-conducting device and at least one heat-dissipating fin.
- the LED light moduleis mounted on a flat portion of the heat-conducting device and jointed to the flat portion smoothly and closely.
- the optical moduleis used for focusing light emitted by the LED light module.
- the control circuit moduleis used for controlling the LED light module.
- the control circuit moduleselectively controls the LED light module to emit light.
- Heat, generated during the operation of the LED light moduleis conducted from the flat portion of the heat-conducting device to the at least one heat-dissipating fin and is dissipated by the at least one heat-dissipating fin.
- the heat-conducting/heat-dissipating moduleis integrated with the LED light module in the diode lamp, according to this invention, heat generated by the LED light module can be immediately dissipated into surrounding air by the heat-dissipating fins. Thus, the heat-dissipating efficiency of the diode lamp is greatly raised. Therefore, compared with prior arts, the diode lamp, according to this invention, is more adaptive to lighting devices that requires high power and highly efficient diode lamps.
- the second main purpose of this inventionis to provide a diode lamp that has lighting effect equivalent to that of a point light source.
- the LED light moduleaccording to this invention, plural LEDs or laser diodes can be packaged together. Compared with the concave mirror in the optical module, the volume of the LEDs is considerably small. Thus, lighting effect equivalent to that of a point light source can be provided.
- the third main purpose of this inventionis to provide a diode lamp that can be extensively integrated to present lighting devices.
- the diode lamps in the aforementioned embodimentscan further include a casing.
- the casingcan be designed to be adapted to present cylindrical or rectangular batteries. Therefore, it is easy to integrate the diode lamp, according to this invention, to current power sources.
- FIG. 1illustrates a lighting device integrated with a heat-dissipating device in prior arts.
- FIG. 2illustrates a lighting device disclosed in the Taiwanese patent No. 568,358.
- FIG. 3(A) and FIG. 3(B)respectively illustrate the lateral view and three-dimensional view of one preferred embodiment according to this invention.
- FIG. 4shows the heat-conducting and heat-dissipating mechanisms in the heat-conducting/heat-dissipating module.
- FIG. 5 and FIG. 6depict implementations of the LED light module.
- FIG. 7 through FIG. 10shows several embodiments of the heat-dissipating fin.
- FIG. 11illustrates another embodiment of the heat-conducting device and the LED light module.
- FIG. 12 through FIG. 14shows several diode lamps with different casings according to this invention.
- One main purpose of this inventionis to provide a system-in-package, high power, and highly efficient diode lamp.
- the diode lamp 30includes a heat-conducting/heat-dissipating module 31 , an LED light module 32 , a control circuit module 33 , and an optical module 34 .
- the heat-conducting/heat-dissipating module 31includes a heat-conducting device 311 and at least one heat-dissipating fin 312 .
- the LED light module 32is mounted on a flat portion of the heat-conducting device 311 .
- the optical module 34is used for focusing light emitted by the LED light module 32 .
- the control circuit module 33is used for controlling the LED light module 32 .
- the control circuit module 33selectively controls the LED light module 32 to emit light.
- Heat, generated during the operation of the LED light module 32is conducted from the flat portion of the heat-conducting device 311 to the at least one heat-dissipating fin 312 and is dissipated by the at least one heat-dissipating fin 312 .
- this inventioncan accordingly prevent the control circuit module 33 from being affected by the heat generated by the LED light module 32 .
- the power source connected to the diode lamp 30can be either a DC power source or an AC power source.
- the control circuit module 33can further include an AC-to-DC converter to convert DC currents into AC currents for the diode lamp 30 .
- the heat-conducting device 311can be a heat-conducting pillar or a heat-conducting pipe made of copper. Please refer to FIG. 4 , which shows the heat-conducting and heat-dissipating mechanisms in the heat-conducting/heat-dissipating module 31 .
- capillary tissues 311 A and working fluid 311 Bare included inside the heat-conducting/heat-dissipating module 31 .
- the working fluid 311 B closer to the LED light module 32will be evaporated from liquid into gas.
- the evaporated fluid 311 Bcan then conduct heat to the other end of the heat-conducting/heat-dissipating module 31 .
- the fluid 311 Bis accordingly cooled and then condensed into fluid again.
- the capillary tissues 311 Aare used for transmitting the condensed fluid 311 B back to the end that is closer to the LED light module 32 .
- the LED light module 32can include a substrate 320 formed of a silicon or metal material, two electrodes 322 , and a light-emitting module 324 .
- the light-emitting module 324 and the two electrodes 322are respectively disposed on the substrate 320 .
- the light-emitting module 324is electrically connected to the control circuit module 33 through the two electrodes 322 .
- FIG. 6As shown in FIG. 6 , the light-emitting module 324 and the two electrodes 322 can be directly disposed on the flat portion of the heat-conducting device 311 .
- a respective insulatoris disposed between the heat-conducting device 311 and each of the two electrodes 322 .
- the light-emitting module 324can include at least one LED or a laser diode.
- the LED in the light-emitting module 324may be a white LED or can be composed of a blue LED and phosphors.
- the light-emitting module 324can also include at least one red LED, at least one blue LED, and at least one green LED.
- the control circuit module 33selectively controls the at least one red LED, the at least one blue LED, and the at least one green LED to emit light. In this way, light of various colors can be generated by mixing light from the LEDs in different ratios.
- the diode lamp 30In the diode lamp 30 , according to this invention, plural LEDs can be packaged together. Compared to concave mirrors cooperated with the light-emitting module 324 or the whole diode lamp 30 , the volume of the light-emitting module 324 is considerably small. Thus, lighting effects equivalent to that of a point light source can be provided.
- the heat-dissipating fin 312can be implemented in various forms. Generally, the heat-dissipating fins 312 are mounted around the periphery of the heat-conducting device 311 .
- the heat-dissipating fin 312can be disk-like as shown in FIG. 7 .
- the heat-dissipating fin 312can also be irregularly shaped, such as sawtooth-like, petal-like, or having holes as shown in FIG. 9 .
- each heat-dissipating fin 312 thereonhas formed-through holes 313 .
- FIG. 10shows another embodiment of the heat-dissipating fin 312 .
- the heat-dissipating fins 312are perpendicular to the flat portion of the heat-conducting device 311 and surround the heat-conducting device 311 .
- FIG. 11illustrates another embodiment of the heat-conducting device 311 and the LED light module 32 .
- one end of the heat-conducting device 311is designed to be flat.
- the LED light module 32can be disposed on the flat portion of the heat-conducting device 311 .
- the diode lamp 30can further include a casing 314 .
- FIG. 12which illustrates an embodiment of the diode lamp 30 that includes a casing.
- the casing 314is designed to cover the heat-dissipating fins 312 but not to affect the heat-dissipating function of the heat-dissipating fins 312 .
- the casing 314can be designed to be adapted to present cylindrical or rectangular batteries. Therefore, it is easy to integrate the diode lamp, according to this invention, with current power sources.
- FIG. 13illustrates a diode lamp in another preferred embodiment according to this invention.
- the heat-conducting device 311is a curved heat-conducting pipe.
- the LED light module 32is disposed at a flat portion of one end of the heat-conducting device 311 .
- the heat-dissipating fins 312are mounted on the periphery of the heat-conducting device 311 . Heat, generated by the LED light module 32 , is conducted from the heat-conducting device 311 to the heat-dissipating fins 312 and is transmitted to surrounding air. In this way, heat-dissipating effect is achieved.
- the non-sealed casing 314can be designed to cover the heat-dissipating fins 312 but not to affect the heat-dissipating function of the heat-dissipating fins 312 .
- FIG. 14illustrates a diode lamp in another preferred embodiment according to this invention.
- the heat-conducting device 311is also a curved heat-conducting pipe.
- the LED light module 32is disposed at one flat portion on the side wall of the heat-conducting device 311 .
- the heat-dissipating fins 312are respectively disposed on the periphery of the two ends of the heat-conducting device 311 . Heat, generated by the LED light module 32 , is conducted from the heat-conducting device 311 to the heat-dissipating fins 312 and is transmitted to surrounding air.
- the heat-conducting/heat-dissipating moduleis integrated with the LED light module in the diode lamp according to this invention, heat generated by the LED light module can be immediately dissipated to surrounding air by the heat-dissipating fins. Thus, heat-dissipating efficiency is greatly raised.
- the diode lamp integrated with a heat-dissipating module, according to this inventionis more adaptive to lighting devices that require high power and highly efficient diode lamps.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Led Device Packages (AREA)
Abstract
Description
- 1. Field of the Invention
- The present invention relates to diode lamps with high power and high efficiency. More specifically, the diode lamps in this invention are system-in-package lighting devices.
- 2. Description of the Prior Art
- Because light-emitting diodes (LEDs) have many advantages, such as low power consumption, quick reaction, being shake-endurable, and being suited to mass production, lighting products that adopts LEDs as light sources are more and more popular. However, after being turned on for a while, the temperature of high power LEDs in prior arts will be too high. The lighting efficiency of LEDs is thus decreased, and their light intensity can not be further increased. Therefore, every product that adopts a high power and highly efficient LED needs good heat-dissipating mechanisms.
- Please refer to
FIG. 1 , which illustrates a lighting device integrated with a heat-dissipating device in prior arts. To increase the light intensity of one single lighting device,plural LEDs 12 are mounted on the heat-conductingplate 10. Many heat-dissipating fins 14 are disposed around the periphery of the heat-conductingplate 10. Because the distances between theLEDs 12 are too far, this lighting device cannot provide lighting effects similar to those of point light sources. - Please refer to
FIG. 2 , which illustrates a lighting device disclosed in the No. 568,358 Taiwanese patent. A red LED21, a green LED22, and ablue LED 23 are disposed on acontrol circuit 24. Thecontrol circuit 24 is used for controlling the LEDs. Thebase 25 under thecontrol circuit 24 helps to dissipate heat for the LEDs and thecontrol circuit 24. The disadvantage of the lighting device shown inFIG. 2 is that thecontrol circuit 24 is too close to the LEDs. When the LEDs generate heat, the operation of thecontrol circuit 24 is easily affected and even damaged. - Accordingly, this invention provides high power and highly efficient diode lamps. More specifically, the diode lamps in this invention are system-in-package lighting devices. The diode lamps according to the present invention not only can effectively solve the heat-dissipating problem in prior arts but can also provide lighting effects equivalent to those of point light sources.
- The first main purpose of this invention is to provide a system-in-package, high power, and highly efficient diode lamp. One preferred embodiment, according to this invention, is a diode lamp which includes a heat-conducting/heat-dissipating module, a LED light module, an optical module, and a control circuit module. The heat-conducting/heat-dissipating module includes a heat-conducting device and at least one heat-dissipating fin. The LED light module is mounted on a flat portion of the heat-conducting device and jointed to the flat portion smoothly and closely. The optical module is used for focusing light emitted by the LED light module. The control circuit module is used for controlling the LED light module. When the diode lamp is electrically connected to a power supply, the control circuit module selectively controls the LED light module to emit light. Heat, generated during the operation of the LED light module, is conducted from the flat portion of the heat-conducting device to the at least one heat-dissipating fin and is dissipated by the at least one heat-dissipating fin.
- Because the heat-conducting/heat-dissipating module is integrated with the LED light module in the diode lamp, according to this invention, heat generated by the LED light module can be immediately dissipated into surrounding air by the heat-dissipating fins. Thus, the heat-dissipating efficiency of the diode lamp is greatly raised. Therefore, compared with prior arts, the diode lamp, according to this invention, is more adaptive to lighting devices that requires high power and highly efficient diode lamps.
- The second main purpose of this invention is to provide a diode lamp that has lighting effect equivalent to that of a point light source. In the LED light module, according to this invention, plural LEDs or laser diodes can be packaged together. Compared with the concave mirror in the optical module, the volume of the LEDs is considerably small. Thus, lighting effect equivalent to that of a point light source can be provided.
- The third main purpose of this invention is to provide a diode lamp that can be extensively integrated to present lighting devices. The diode lamps in the aforementioned embodiments can further include a casing. The casing can be designed to be adapted to present cylindrical or rectangular batteries. Therefore, it is easy to integrate the diode lamp, according to this invention, to current power sources.
- The advantage and spirit of the invention may be understood by the following recitations together with the appended drawings.
- BRIEF DESCRIPTION OF THE APPENDED DRAWINGS
FIG. 1 illustrates a lighting device integrated with a heat-dissipating device in prior arts.FIG. 2 illustrates a lighting device disclosed in the Taiwanese patent No. 568,358.FIG. 3(A) andFIG. 3(B) respectively illustrate the lateral view and three-dimensional view of one preferred embodiment according to this invention.FIG. 4 shows the heat-conducting and heat-dissipating mechanisms in the heat-conducting/heat-dissipating module.FIG. 5 andFIG. 6 depict implementations of the LED light module.FIG. 7 throughFIG. 10 shows several embodiments of the heat-dissipating fin.FIG. 11 illustrates another embodiment of the heat-conducting device and the LED light module.FIG. 12 throughFIG. 14 shows several diode lamps with different casings according to this invention.- One main purpose of this invention is to provide a system-in-package, high power, and highly efficient diode lamp.
- Please refer to
FIG. 3(A) andFIG. 3(B) , which respectively illustrate the lateral view and three-dimensional view of the diode lamp of one preferred embodiment according to this invention. Thediode lamp 30, according to this invention, includes a heat-conducting/heat-dissipating module 31, anLED light module 32, acontrol circuit module 33, and anoptical module 34. The heat-conducting/heat-dissipatingmodule 31 includes a heat-conductingdevice 311 and at least one heat-dissipatingfin 312. TheLED light module 32 is mounted on a flat portion of the heat-conductingdevice 311. Theoptical module 34 is used for focusing light emitted by theLED light module 32. Thecontrol circuit module 33 is used for controlling theLED light module 32. When thediode lamp 30 is electrically connected to a power supply, thecontrol circuit module 33 selectively controls theLED light module 32 to emit light. Heat, generated during the operation of theLED light module 32, is conducted from the flat portion of the heat-conductingdevice 311 to the at least one heat-dissipatingfin 312 and is dissipated by the at least one heat-dissipatingfin 312. - As shown in
FIG. 3(A) andFIG. 3(B) , since there is a distance between thecontrol circuit module 33 and theLED light module 32, this invention can accordingly prevent thecontrol circuit module 33 from being affected by the heat generated by theLED light module 32. - According to this invention, the power source connected to the
diode lamp 30 can be either a DC power source or an AC power source. When the power source is an AC power source, thecontrol circuit module 33 can further include an AC-to-DC converter to convert DC currents into AC currents for thediode lamp 30. - In actual applications, the heat-conducting
device 311 can be a heat-conducting pillar or a heat-conducting pipe made of copper. Please refer toFIG. 4 , which shows the heat-conducting and heat-dissipating mechanisms in the heat-conducting/heat-dissipatingmodule 31. Inside the heat-conducting/heat-dissipatingmodule 31,capillary tissues 311A and workingfluid 311B are included. When theLED light module 32 generates heat, the workingfluid 311B closer to theLED light module 32 will be evaporated from liquid into gas. The evaporatedfluid 311B can then conduct heat to the other end of the heat-conducting/heat-dissipatingmodule 31. After the heat-dissipatingfins 312 dissipate heat, the fluid311B is accordingly cooled and then condensed into fluid again. Thecapillary tissues 311A are used for transmitting thecondensed fluid 311B back to the end that is closer to theLED light module 32. By the circulating mechanism shown inFIG. 4 , heat can be effectively conducted and dissipated. - Please refer to
FIG. 5 . In actual applications, theLED light module 32 can include asubstrate 320 formed of a silicon or metal material, twoelectrodes 322, and a light-emittingmodule 324. The light-emittingmodule 324 and the twoelectrodes 322 are respectively disposed on thesubstrate 320. The light-emittingmodule 324 is electrically connected to thecontrol circuit module 33 through the twoelectrodes 322. Please refer toFIG. 6 . As shown inFIG. 6 , the light-emittingmodule 324 and the twoelectrodes 322 can be directly disposed on the flat portion of the heat-conductingdevice 311. A respective insulator is disposed between the heat-conductingdevice 311 and each of the twoelectrodes 322. - In actual applications, the light-emitting
module 324 can include at least one LED or a laser diode. The LED in the light-emittingmodule 324 may be a white LED or can be composed of a blue LED and phosphors. The light-emittingmodule 324 can also include at least one red LED, at least one blue LED, and at least one green LED. Thecontrol circuit module 33 selectively controls the at least one red LED, the at least one blue LED, and the at least one green LED to emit light. In this way, light of various colors can be generated by mixing light from the LEDs in different ratios. - In the
diode lamp 30, according to this invention, plural LEDs can be packaged together. Compared to concave mirrors cooperated with the light-emittingmodule 324 or thewhole diode lamp 30, the volume of the light-emittingmodule 324 is considerably small. Thus, lighting effects equivalent to that of a point light source can be provided. - Please refer to
FIG. 7 throughFIG. 10 . The heat-dissipatingfin 312, according to this invention, can be implemented in various forms. Generally, the heat-dissipatingfins 312 are mounted around the periphery of the heat-conductingdevice 311. The heat-dissipatingfin 312 can be disk-like as shown inFIG. 7 . As shown inFIG. 8 , the heat-dissipatingfin 312 can also be irregularly shaped, such as sawtooth-like, petal-like, or having holes as shown inFIG. 9 . InFIG. 9 , each heat-dissipatingfin 312 thereon has formed-throughholes 313. Theholes 313 can let air circulate through, so as to accelerate heat-dissipating.FIG. 10 shows another embodiment of the heat-dissipatingfin 312. The heat-dissipatingfins 312 are perpendicular to the flat portion of the heat-conductingdevice 311 and surround the heat-conductingdevice 311. - Please refer to
FIG. 11 , which illustrates another embodiment of the heat-conductingdevice 311 and theLED light module 32. As shown inFIG. 11 , one end of the heat-conductingdevice 311 is designed to be flat. TheLED light module 32 can be disposed on the flat portion of the heat-conductingdevice 311. - In actual applications, the
diode lamp 30 can further include acasing 314. Please refer toFIG. 12 , which illustrates an embodiment of thediode lamp 30 that includes a casing. Thecasing 314 is designed to cover the heat-dissipatingfins 312 but not to affect the heat-dissipating function of the heat-dissipatingfins 312. Besides, thecasing 314 can be designed to be adapted to present cylindrical or rectangular batteries. Therefore, it is easy to integrate the diode lamp, according to this invention, with current power sources. - Please refer to
FIG. 13 , which illustrates a diode lamp in another preferred embodiment according to this invention. In this embodiment, the heat-conductingdevice 311 is a curved heat-conducting pipe. TheLED light module 32 is disposed at a flat portion of one end of the heat-conductingdevice 311. The heat-dissipatingfins 312 are mounted on the periphery of the heat-conductingdevice 311. Heat, generated by theLED light module 32, is conducted from the heat-conductingdevice 311 to the heat-dissipatingfins 312 and is transmitted to surrounding air. In this way, heat-dissipating effect is achieved. Thenon-sealed casing 314 can be designed to cover the heat-dissipatingfins 312 but not to affect the heat-dissipating function of the heat-dissipatingfins 312. - Please refer to
FIG. 14 , which illustrates a diode lamp in another preferred embodiment according to this invention. In this embodiment, the heat-conductingdevice 311 is also a curved heat-conducting pipe. TheLED light module 32 is disposed at one flat portion on the side wall of the heat-conductingdevice 311. The heat-dissipatingfins 312 are respectively disposed on the periphery of the two ends of the heat-conductingdevice 311. Heat, generated by theLED light module 32, is conducted from the heat-conductingdevice 311 to the heat-dissipatingfins 312 and is transmitted to surrounding air. - Because the heat-conducting/heat-dissipating module is integrated with the LED light module in the diode lamp according to this invention, heat generated by the LED light module can be immediately dissipated to surrounding air by the heat-dissipating fins. Thus, heat-dissipating efficiency is greatly raised. Through improving the heat-dissipating efficiency of diode lamps, the problem that the efficiency of the LED is decreased by over-heating is solved in this invention. Accordingly, the lighting efficiency of the diode lamp in this invention can also be raised. Therefore, compared with prior arts, the diode lamp integrated with a heat-dissipating module, according to this invention, is more adaptive to lighting devices that require high power and highly efficient diode lamps.
- With the above example and explanation, the features and spirits of the invention are hopefully well described. Those skilled in the art will readily observe that numerous modifications and alterations of the device may be made while retaining the teaching of the invention. Accordingly, the above disclosure should be construed as limited only by the metes and bounds of the appended claims.
Claims (6)
1. A system-in-package, high power, and highly efficient diode lamp, comprising:
a heat pipe having a flat portion, wherein the flat portion has a capillary layer positioned thereunder;
a heat-dissipating device mounted to the heat pipe;
a holder accommodating the heat pipe, the holder having a flat surface; and
a LED light module having a substrate and at least one LED chip on the substrate, wherein the substrate is mounted above the flat portion of the heat pipe and the flat surface of the holder;
wherein the heat generated during the operation of the LED light module is conducted from the flat portion of the heat pipe to the heat-dissipating device.
2. The diode lamp ofclaim 1 , wherein the substrate is formed of a silicon material or a metal material.
3. The diode lamp ofclaim 1 , wherein the heat pipe comprises a planished end and a cylindrical wall connected to the planished end, wherein the flat portion is positioned on the planished end and the capillary layer is extended on both an inner surface of the planished end and an inner surface of the cylindrical wall.
4. The diode lamp ofclaim 1 , the heat pipe comprising a sealed end and a cylindrical wall connected to the seal end, wherein a portion of the cylindrical wall is planished such that the flat portion is positioned on the planished portion of the cylindrical wall, and the capillary layer is extended on the inner surface of the flat portion and an inner surface of the cylindrical wall.
5. The diode lamp ofclaim 1 , further comprising:
an optical module corresponding to the LED light module for modulating light emitted by the LED light module.
6. The diode lamp ofclaim 1 , wherein the LED light module further comprises one electrode on the substrate, and the LED chip is electrically connected to the electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/224,624US20110317423A1 (en) | 2005-03-28 | 2011-09-02 | System in Package High Power Highly Efficient Diode Lamp |
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005/10062450.4 | 2005-03-28 | ||
| CNPCT/CN2005/000389 | 2005-03-28 | ||
| CN2005100624504ACN1840958B (en) | 2005-03-28 | 2005-03-28 | System-in-package high-power high-efficiency diode bulb |
| PCT/CN2005/000389WO2006102785A1 (en) | 2005-03-28 | 2005-03-28 | An efficient high-power led lamp |
| US88742707A | 2007-09-28 | 2007-09-28 | |
| US13/006,015US8029158B2 (en) | 2005-03-28 | 2011-01-13 | System in package high power highly efficient diode lamp |
| US13/224,624US20110317423A1 (en) | 2005-03-28 | 2011-09-02 | System in Package High Power Highly Efficient Diode Lamp |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US13/006,015ContinuationUS8029158B2 (en) | 2005-03-28 | 2011-01-13 | System in package high power highly efficient diode lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US20110317423A1true US20110317423A1 (en) | 2011-12-29 |
Family
ID=43974045
Family Applications (3)
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|---|---|---|---|
| US11/887,427Expired - Fee RelatedUS7891837B2 (en) | 2005-03-28 | 2005-03-28 | System in package high power highly efficient diode lamp |
| US13/006,015Expired - Fee RelatedUS8029158B2 (en) | 2005-03-28 | 2011-01-13 | System in package high power highly efficient diode lamp |
| US13/224,624AbandonedUS20110317423A1 (en) | 2005-03-28 | 2011-09-02 | System in Package High Power Highly Efficient Diode Lamp |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US11/887,427Expired - Fee RelatedUS7891837B2 (en) | 2005-03-28 | 2005-03-28 | System in package high power highly efficient diode lamp |
| US13/006,015Expired - Fee RelatedUS8029158B2 (en) | 2005-03-28 | 2011-01-13 | System in package high power highly efficient diode lamp |
Country Status (7)
| Country | Link |
|---|---|
| US (3) | US7891837B2 (en) |
| EP (1) | EP1873447A4 (en) |
| JP (1) | JP4991696B2 (en) |
| KR (1) | KR100999843B1 (en) |
| CN (1) | CN1840958B (en) |
| AU (1) | AU2005329901B2 (en) |
| WO (1) | WO2006102785A1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR20080002823A (en) | 2008-01-04 |
| US7891837B2 (en) | 2011-02-22 |
| WO2006102785A1 (en) | 2006-10-05 |
| CN1840958A (en) | 2006-10-04 |
| KR100999843B1 (en) | 2010-12-13 |
| JP4991696B2 (en) | 2012-08-01 |
| EP1873447A1 (en) | 2008-01-02 |
| US8029158B2 (en) | 2011-10-04 |
| JP2008535227A (en) | 2008-08-28 |
| AU2005329901B2 (en) | 2011-09-08 |
| CN1840958B (en) | 2012-07-04 |
| US20090278460A1 (en) | 2009-11-12 |
| EP1873447A4 (en) | 2009-04-22 |
| US20110110088A1 (en) | 2011-05-12 |
| AU2005329901A1 (en) | 2006-10-05 |
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| AS | Assignment | Owner name:NEOBULB TECHNOLOGIES, INC., BRUNEI DARUSSALAM Free format text:ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CHEN, JEN-SHYAN;REEL/FRAME:027209/0581 Effective date:20111101 | |
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