WO2013133473A1 - Led 램프 모듈의 방열기판구조 및 그 제조방법 - Google Patents
Led 램프 모듈의 방열기판구조 및 그 제조방법 Download PDFInfo
- Publication number
- WO2013133473A1 WO2013133473A1 PCT/KR2012/002564 KR2012002564W WO2013133473A1 WO 2013133473 A1 WO2013133473 A1 WO 2013133473A1 KR 2012002564 W KR2012002564 W KR 2012002564W WO 2013133473 A1 WO2013133473 A1 WO 2013133473A1
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- Prior art keywords
- heat dissipation
- wire
- heat
- base substrate
- led lamp
- Prior art date
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- 238000004519 manufacturing process Methods 0.000 title claims description 60
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 82
- 238000003780 insertion Methods 0.000 claims abstract description 52
- 230000037431 insertion Effects 0.000 claims abstract description 52
- 239000011889 copper foil Substances 0.000 claims abstract description 35
- 238000003754 machining Methods 0.000 claims abstract description 4
- 230000017525 heat dissipation Effects 0.000 claims description 166
- 239000000758 substrate Substances 0.000 claims description 116
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 49
- 230000005855 radiation Effects 0.000 claims description 40
- 238000000034 method Methods 0.000 claims description 37
- 239000000463 material Substances 0.000 claims description 19
- 239000010949 copper Substances 0.000 claims description 14
- 229920001971 elastomer Polymers 0.000 claims description 14
- 229910052709 silver Inorganic materials 0.000 claims description 14
- 239000004332 silver Substances 0.000 claims description 14
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 238000005520 cutting process Methods 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 7
- 229910000679 solder Inorganic materials 0.000 description 7
- 239000006071 cream Substances 0.000 description 5
- 238000005553 drilling Methods 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
- H05K1/0203—Cooling of mounted components
- H05K1/0204—Cooling of mounted components using means for thermal conduction connection in the thickness direction of the substrate
-
- 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
- H10H20/8581—Means for heat extraction or cooling characterised by their material
-
- 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
- H10H20/8582—Means for heat extraction or cooling characterised by their shape
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/44—Structure, shape, material or disposition of the wire connectors prior to the connecting process
- H01L2224/45—Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
- H01L2224/45001—Core members of the connector
- H01L2224/45099—Material
- H01L2224/451—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof
- H01L2224/45138—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
- H01L2224/45147—Copper (Cu) as principal constituent
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
- H01L2224/48091—Arched
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10106—Light emitting diode [LED]
Definitions
- the present invention relates to a heat dissipation substrate structure of the LED lamp module and a method of manufacturing the same, and more particularly, a heat dissipation substrate structure of the LED lamp module which can simplify the manufacturing process of the substrate structure and can effectively dissipate heat generated from the LED lamp. And to a method for producing the same.
- LED (Light Emitting Diode) lamps using light emitting diodes are used as a new light source with high power to protect the natural environment against the global warming of the environment and to significantly reduce power consumption and resource consumption while increasing light source efficiency.
- the LED lamp has a heat dissipation substrate structure using a substrate made of a material that can efficiently dissipate heat generated from the substrate as the use of a high performance substrate is generalized.
- LED lamps are gradually being used as a next-generation lighting source from various advantages such as semi-permanent, low power consumption, and environment-friendly.
- the luminous efficiency decreases rapidly, and the lifespan is shortened, and other wavelength changes between red, green, and blue due to the temperature increase due to continuous use are becoming a problem.
- the problem caused by heat generated in the LED lamp is becoming more serious.
- a substrate to which the LED lamp is electrically connected is coupled and a heat sink for providing a heat radiating effect on heat generated from the LED lamp is configured and used at the rear.
- the heat dissipation structure of the LED lamp, including the heat sink that emits heat well is important.
- the conventional heat sink is difficult to manufacture by reducing the size of the heat sink because it is produced by the die-casting operation, according to the heat sink is not applied to each of the LED lamps rather than one heat sink in one light source equipped with a plurality of LED lamps This has to be largely applied as a whole, there was a problem that there is a limit to increase the heat radiation efficiency for heat generated from the optical device.
- Korean Patent Application Publication No. 5827 (January 17, 2012) of the Korean Intellectual Property Office and a printed circuit board is provided with a plurality of surface-mounting LED chip; A heat sink installed on a bottom surface of the printed circuit board; And heat transfer means for transferring heat generated from the LED chip to the heat sink, wherein the heat transfer means is formed on the bottom surface of the LED chip and the top surface of the heat sink through a through hole formed through the top and bottom surfaces of the printed circuit board.
- the heat dissipation structure of the LED lamp module is known that the heat dissipation fins are inserted to be in contact with each other to quickly release heat to prevent damage to the LED.
- the heat dissipation structure of the conventional LED lamp can maintain a structure in which the LED lamp and the heat sink are linked to each other by the heat dissipation fins, so that heat can be quickly released to a certain extent, but the heat dissipation fins simply form a circular plate to connect the LED lamp and the heat sink.
- the heat dissipation fins simply form a circular plate to connect the LED lamp and the heat sink.
- the above-described prior art is a method of injecting a lead-free cream solder into a small hole of the substrate at a constant height, which causes manufacturing difficulties, and because it is directly injected into the substrate, it is difficult to uniformly adjust the injection amount or height every time. Problems such as time-consuming manufacturing of the product due to delay in the process of injecting the material constantly toward the minute size holes and drying for a predetermined time after the injection. there was.
- the present invention is to solve the above problems, since the heat dissipation fins that can emit heat individually for each LED lamp to form a structure that can be applied to the substrate can be configured to increase the heat dissipation efficiency by effectively dissipating heat generated from the LED It is an object of the present invention to provide a heat dissipation substrate structure of a LED lamp module and a method of manufacturing the same.
- the present invention forms a structure to fit the heat radiation fins uniformly manufactured to have a uniform height and size to the substrate, so the manufacturing process is simple and to apply a heat radiation fin of a constant height and size to promote the production of goods and improve the productivity of the product It is to provide a heat dissipation substrate structure of the LED lamp module and a method of manufacturing the same.
- the heat dissipation substrate structure of the LED lamp module according to the present invention includes a base substrate formed with one or a plurality of insertion holes penetrating up and down; A copper foil layer formed on an upper surface of the base substrate so that an upper side of the insertion hole is opened; An LED unit disposed above the insertion hole of the base substrate and mounted in contact with the copper foil layer; And a heat dissipation fin inserted into the insertion hole of the base substrate, the heat dissipation fin installed to be capable of dissipating heat by being in contact with the bottom surface of the LED unit, wherein the heat dissipation fin has a heat dissipation rib formed by a wire discharging process using an electrode on a bottom surface thereof. It includes a rib groove.
- the heat dissipation fin is formed of any one material of silver material or silver plated copper.
- the present invention may be configured to further include a heat conducting paste layer formed on the bottom surface of the heat radiation fin in the insertion hole of the base substrate, or may further comprise a heat radiation rubber sheet located on the bottom surface of the base substrate.
- the heat dissipation board structure of the LED lamp module according to the present invention may be configured to further include a heat dissipation plate installed on the bottom surface side of the base substrate.
- the method of manufacturing a heat dissipation substrate of an LED lamp module includes the steps of preparing and preparing a base substrate and a heat dissipation fin, respectively; Forming a copper foil layer on an upper surface of the base substrate; Forming one or a plurality of insertion holes through the base substrate from an upper side of the copper foil layer; Fitting and installing the heat dissipation fin toward the insertion hole; And mounting the bottom surface in contact with the top of the heat dissipation fin and connecting the LED unit with a connection wiring on the upper portion of the copper foil layer, wherein the heat dissipation fin is fed with a copper wire or a silver wire in a longitudinal direction and supplied thereto; A heat dissipation rib and a heat dissipation rib groove are formed by a wire discharging processing step of contacting and cutting the copper wire or the silver wire supplied from the feeding step so as to cause a discharge action using an electrode from the wire.
- the wire is in contact with one surface of the copper wire or the silver wire to cut the fin-shaped heat dissipation rib and the heat dissipation rib groove, and the length of the heat dissipation fin with respect to the copper wire or the silver wire. Cutting to cut.
- the present invention further comprises the step of forming a heat conducting paste layer on the bottom surface of the heat sink fin toward the inside of the insertion hole after installing the heat sink fin, or after installing the heat sink fin to the heat radiation rubber sheet on the bottom surface of the base substrate It is also possible to further comprise the step of forming.
- the method for manufacturing a heat dissipation substrate of the LED lamp module according to the present invention may further include mounting the base substrate on which the LED unit is mounted on a heat dissipation plate.
- the heat dissipation board structure of the LED lamp module according to the present invention since the heat dissipation fins are formed in the base substrate so that the bottom of each LED part is in contact with each other, the heat generated from the LED part can be effectively discharged through the heat dissipation fins most effectively.
- the heat dissipation board structure and the manufacturing method of the LED lamp module according to the present invention are configured to fit the heat dissipation fins uniformly manufactured to the base substrate, it is easy to manufacture and promotes convenience and the heat dissipation fins of a certain size are applied to reduce the defective rate. It has the effect of minimizing and maximizing product productivity.
- 1 is a plan view partially showing an example of a base substrate in the present invention.
- Figure 2 is a partially enlarged cross-sectional view showing a first embodiment of the heat radiation board structure of the LED lamp module according to the present invention.
- Figure 3 is a partially enlarged cross-sectional view showing a second embodiment of the heat radiation board structure of the LED lamp module according to the present invention.
- Figure 4 is a partially enlarged cross-sectional view showing a third embodiment of the heat radiation board structure of the LED lamp module according to the present invention.
- Figure 5 is a partially enlarged cross-sectional view showing a fourth embodiment of the heat radiation board structure of the LED lamp module according to the present invention.
- Figure 6 is a block diagram showing a first embodiment of a method for manufacturing a heat radiation board of the LED lamp module according to the present invention.
- FIG. 7 is a process diagram showing a first embodiment of a method for manufacturing a heat radiation board of the LED lamp module according to the present invention.
- FIG. 8 is a block diagram showing a manufacturing process of the heat radiation fin in the heat radiation board manufacturing method of the LED lamp module according to the present invention.
- Figure 9 is a block diagram showing a second embodiment of the method for manufacturing a heat radiation board of the LED lamp module according to the present invention.
- FIG. 10 is a process chart showing a second embodiment of the method for manufacturing a heat radiation board of the LED lamp module according to the present invention.
- Figure 11 is a block diagram showing a third embodiment of the method for manufacturing a heat radiation board of the LED lamp module according to the present invention.
- FIG. 12 is a process diagram showing a third embodiment of the method for manufacturing a heat radiation board of the LED lamp module according to the present invention.
- Figure 13 is a block diagram showing a fourth embodiment of the method for manufacturing a heat radiation board of the LED lamp module according to the present invention.
- FIG. 14 is a process chart showing a fourth embodiment of the method for manufacturing a heat radiation board of the LED lamp module according to the present invention.
- the present invention includes a base substrate formed with one or a plurality of insertion holes penetrating up and down; A copper foil layer formed on an upper surface of the base substrate so that an upper side of the insertion hole is opened; An LED unit disposed above the insertion hole of the base substrate and mounted in contact with the copper foil layer; And a heat dissipation fin inserted into the insertion hole of the base substrate, the heat dissipation fin installed to be capable of dissipating heat by being in contact with the bottom surface of the LED unit, wherein the heat dissipation fin has a heat dissipation rib formed by a wire discharging process using an electrode on a bottom surface thereof
- the heat dissipation board structure of the LED lamp module including the rib groove is characterized by the technical configuration.
- the heat dissipation fin is characterized by a heat dissipation board structure of the LED lamp module formed of any one material of silver material or silver plated copper.
- the present invention is characterized in that the heat radiation substrate structure of the LED lamp module further comprises a heat conducting paste layer formed on the bottom surface of the heat radiation fin in the insertion hole of the base substrate.
- the present invention is characterized in that the heat dissipation substrate structure of the LED lamp module further comprises a heat dissipation rubber sheet located on the bottom surface of the base substrate.
- the present invention is characterized in that the heat radiation board structure of the LED lamp module further comprises a heat sink installed on the bottom side of the base substrate.
- the present invention comprises the steps of preparing and preparing the base substrate and the heat radiation fins, respectively; Forming a copper foil layer on an upper surface of the base substrate; Forming one or a plurality of insertion holes through the base substrate from an upper side of the copper foil layer; Fitting and installing the heat dissipation fin toward the insertion hole; And mounting the bottom surface in contact with the top of the heat dissipation fin and connecting the LED unit with a connection wiring on the upper portion of the copper foil layer, wherein the heat dissipation fin is fed with a copper wire or a silver wire in a longitudinal direction and supplied thereto; Describes a method of manufacturing a heat dissipation substrate of an LED lamp module in which heat dissipation ribs and heat dissipation rib grooves are formed by a wire discharging processing step of cutting and machining the wires or silver wires by contacting the wires or the silver wires so as to cause a discharge action using an electrode from a wire. It is a wire
- a step of binding the copper wire or the silver wire to be fixed to each other, and supplying only interlocked copper wire or the silver wire by the length set by the rolling operation method of manufacturing a heat radiation board of the LED lamp module is characterized by the technical configuration.
- the wire discharge processing step for manufacturing the heat dissipation fins the wire contacting one side of the copper wire or the silver wire to cut the fin-shaped heat dissipation rib and the heat dissipation rib groove, and the length of the heat dissipation fin with respect to the copper wire or the silver wire.
- the heat dissipation substrate manufacturing method of the LED lamp module comprising a step of cutting so as to cut is characterized by a technical configuration.
- the present invention is characterized in that the method of manufacturing a heat dissipation substrate of the LED lamp module further comprises the step of forming a heat conducting paste layer on the bottom surface of the heat dissipation fin toward the inside of the insertion hole after installing the heat dissipation fins.
- the present invention is characterized in that the method of manufacturing a heat radiation board of the LED lamp module further comprises the step of forming a heat radiation rubber sheet on the bottom surface of the base substrate after installing the heat radiation fins.
- the present invention is characterized in that the manufacturing method of the heat dissipation substrate of the LED lamp module further comprises the step of mounting the base substrate mounted with the LED unit on a heat sink.
- the base substrate 10 is formed using a material having excellent heat resistance, chemical resistance, electrical properties, and thermal conductivity.
- Figure 1 shows a typical epoxy resin substrate of the FR-4 PCB
- the base substrate 10 of the present invention can be used by applying the FR-4 PCB.
- the base substrate 10 includes one or a plurality of insertion holes 11 penetrating up and down.
- the insertion hole 11 is formed by processing into a corresponding shape so that the heat radiation fin 40 can be fitted.
- the insertion hole 11 is also formed in a circular cross-sectional shape.
- the insertion hole 11 also has a square cross-section. It is formed into a shape.
- the insertion hole 11 may be formed in the base substrate 10 using various methods such as etching or drilling.
- the copper foil layer 20 is formed on the upper surface of the base substrate 10.
- the upper surface of the base substrate 10 may be formed to include the copper foil layer 20 as a whole, and the copper foil layer 20 may be formed to be partially provided on the upper surface of the base substrate 10. .
- the copper foil layer 20 has an open structure at an upper side of the insertion hole 11 so that the heat dissipation fins can be interpolated from above toward the insertion hole.
- the copper foil layer 20 is made of a conductive metal such as copper (Cu) or gold (Au).
- the LED unit 30 is positioned above the insertion hole 11 of the base substrate 10 and is mounted in contact with the copper foil layer 20.
- the LED unit 30 is preferably located on the same vertical center line as the insertion hole (11).
- a molding layer 35 on the outside of the LED unit 30 so as to protect and support the LED unit 30 mounted on the base substrate 10.
- the molding material forming the molding layer 35 may be formed using a transparent polymer material, and may be formed by mixing a fluorescent material or a wavelength conversion material with the polymer material as necessary.
- connection wiring 37 on the copper foil layer 20 is preferably provided with a connection wiring 37 on the copper foil layer 20.
- the LED unit 30 is electrically connected to the connection line 37 through a bonding wire 38.
- the heat dissipation fin 40 is in contact with the bottom surface of the LED unit 30 to perform the function of dissipating heat generated from the LED unit 30.
- the heat dissipation fins 40 are inserted into and inserted into the insertion holes 11 of the base substrate 10.
- the heat dissipation fin 40 has a structure in which a plurality of heat dissipation ribs 41 and heat dissipation rib grooves 43 are formed at regular intervals on a bottom surface thereof.
- the heat dissipation rib 41 and the heat dissipation rib groove 43 of the heat dissipation fin 40 are formed by wire discharge processing using an electrode. That is, as the wire having a diameter of about 0.05 to 0.33 mm is moved by numerical control so as to cause the discharge action by the electrode on the flat bottom surface of the heat dissipation fin 40, it is naturally contacted to form the heat dissipation rib groove 43.
- the heat dissipation ribs 41 are formed.
- the heat dissipation fins 40 may be formed of a material using silver as a whole, or may be formed using a material in which silver is plated on copper.
- a heat conduction is formed on the bottom surface of the heat dissipation fin 40 in the insertion hole 11 of the base substrate 10.
- a paste layer 50 is further included.
- the thermal conductive paste layer 50 is preferably used by applying a thermally conductive silicon paste material having excellent thermal conductivity.
- the heat conductive paste layer 50 is formed as described above, it is possible to efficiently release heat generated from the LED unit 30 and to fix the heat dissipation fin 40 so as to be stably supported.
- the third embodiment of the heat dissipation substrate structure of the LED lamp module according to the present invention is formed to further include a heat dissipation rubber sheet 60 located on the bottom surface of the base substrate 10, as shown in FIG.
- the heat dissipation rubber sheet 60 may be attached to the bottom surface of the base substrate 10 by pressing.
- the heat dissipation rubber sheet 60 is preferably used by applying a low hardness high thermal conductivity heat dissipation silicone rubber sheet excellent in light and excellent thermal conductivity.
- the fourth embodiment of the heat dissipation substrate structure of the LED lamp module according to the present invention further includes a heat dissipation plate 70 installed to be in contact with the bottom surface side of the base substrate 10.
- heat generated from the LED unit 30 is quickly discharged through the heat sink 70 immediately after passing through the heat radiating fins 40, thereby maximizing heat emission efficiency.
- the techniques of the first to fourth embodiments may be selected and merged or replaced with each other.
- the first embodiment of the method of manufacturing a heat dissipation substrate of the LED lamp module according to the present invention is to prepare a base substrate 10 and the heat dissipation fin 40, as shown in Figure 6 and 7 (S10) and copper foil Forming the layer 20 (S20), forming the insertion hole 11 (S30), installing the heat dissipation fin 40 (S40), and mounting the LED unit 30 ( S50) is made.
- the base substrate 10 and the heat dissipation fin 40 are prepared and prepared, respectively.
- the base substrate 10 is a plate-shaped base manufactured by using a material (for example, epoxy resin (FR-4), etc.) having excellent heat resistance, chemical resistance, electrical properties, and thermal conductivity and forming a predetermined size and thickness.
- a material for example, epoxy resin (FR-4), etc.
- the substrate 10 is prepared.
- the base substrate may be formed in a plate shape having a thickness of 0.1 to 5 mm, and the base substrate may be formed in a thin plate shape having a thickness of 0.15 to 0.1 mm, so that the thin film may be thinned.
- the heat dissipation fin 40 is prepared of a metal material having excellent thermal conductivity so as to quickly release the heat generated from the LED unit 30.
- the copper wire or silver wire is used as a material for forming the heat radiation fins 40 in the above.
- the heat radiating fins 40 When using the heat radiating fins 40 in a copper wire, it is preferable to use silver plated on the surface of copper. That is, the heat dissipation fin 40 may use silver as a whole, or may use a material in which silver is plated on the surface of copper.
- heat dissipation fins 40 In order to prepare the heat dissipation fins 40, copper wires or silver wires having a predetermined length and diameter are processed to produce the heat dissipation fins 40 having the same height.
- the feeding step (S11) to draw and supply the copper wire or silver wire in the longitudinal direction, and one end of the copper wire or silver wire supplied from the feeding step (S11) Wire discharge processing step (S15) for cutting.
- the step (S12) of binding the copper wire or silver wire to be fixed to be fixed in the feeding step (S11) for manufacturing the heat dissipation fin 40, the step (S12) of binding the copper wire or silver wire to be fixed to be fixed, and the step of supplying the interlocked copper wire or silver wire by the rolling operation (S13).
- the copper wire or the silver wire In the binding of the copper wire or silver wire, the copper wire or the silver wire is positioned up and down, respectively, and the copper wire or the silver wire is sandwiched between the rollers pressurized with a predetermined force.
- the copper wire or the silver wire is pulled out by the rolling operation of the roller in a state where the copper wire or the silver wire is engaged with the roller.
- the heat dissipation rib 41 and the heat dissipation rib groove 43 are formed in contact with one end of the copper wire or the silver wire supplied from the feeding step S11 so as to cause a discharge action using an electrode from the wire. Processing.
- the wire is in contact with the copper wire or the silver wire to form a state in which the electrode is passed through the numerical control.
- the wire is in contact with one surface of the copper wire or the silver wire to cut the fin-shaped heat dissipation ribs 41 and the heat dissipation rib grooves 43 (S16). And cutting to cut the length of the heat dissipation fin 40 with respect to the copper wire or the silver wire (S17).
- the wire discharge processing step (S15) it is preferable that the wire is provided to supply the non-conductive processing liquid to the cutting surface at the position where the processing is made in contact with the copper wire or the silver wire.
- the heat dissipation fin 40 after the cutting process is completed in the wire discharge machining step (S15) is finally collected to prepare the heat dissipation fin 40.
- the copper foil layer 20 is formed on the upper surface of the base substrate 10.
- the copper foil layer 20 may be formed entirely on the upper surface of the base substrate 10, and the copper foil layer 20 may be partially formed.
- a conductive metal such as copper or gold may be used as a material for forming the copper foil layer 20.
- the insertion hole 11 is formed by penetrating the base substrate 10 from the upper side of the copper foil layer 20.
- the insertion holes 11 are processed by arranging one or a plurality of the insertion holes 11 in one base substrate 10.
- the insertion hole 11 is formed by removing the base substrate 10 using various methods such as etching or drilling.
- the heat dissipation fins 40 are fitted to the insertion hole 11 to be installed.
- the heat dissipation fin is coupled to the upper part so that the upper surface is in contact with the LED part and leaves a minute space in the lower part of the insertion hole.
- the heat dissipation fins 40 may be installed by setting mutual diameters with appropriate tolerances so that the heat dissipation fins 40 may be naturally inserted into the insertion holes 11. It is also possible to install by forcibly fitting to the insertion hole (11).
- the LED unit 30 In the mounting of the LED unit 30 (S50), the LED unit 30 is mounted on the base substrate 10, and then the LED unit 30 and the base substrate 10 are electrically connected. Connect.
- the LED unit 30 is mounted such that a bottom surface thereof contacts the upper portion of the heat dissipation fin 40.
- connection wiring 37 on the copper foil layer 20.
- the LED unit 30 is connected to the connection wiring 37 using a bonding wire 38.
- the second embodiment of the method for manufacturing a heat dissipation substrate of the LED lamp module according to the present invention is as shown in Figs. 9 and 10, in the first embodiment, the heat dissipation fin 40 is installed and then the insertion hole ( And forming a thermally conductive paste layer 50 on the bottom surface of the heat dissipation fin 40 toward the inside (11).
- the thermally conductive paste layer 50 is thinly formed using a thermally conductive paste material having excellent thermal conductivity.
- the heat conducting paste layer 50 is formed as described above, it is possible to stably support and fix the heat radiating fins 40 and to efficiently release heat.
- the third embodiment of the method for manufacturing a heat dissipation substrate of the LED lamp module according to the present invention is as shown in Figs. 11 and 12, in the first embodiment, the heat dissipation fin 40 is installed and then the base substrate ( It further comprises the step (S46) to form a heat radiation rubber sheet 60 on the bottom of 10).
- the heat dissipation rubber sheet 60 is formed thin using a low hardness, high thermal conductivity heat dissipation silicone rubber sheet having a light and excellent thermal conductivity.
- the heat dissipation rubber sheet 60 is attached to the bottom surface of the base substrate 10 in a pressing manner.
- the base substrate 10 on which the LED unit 30 is mounted on the heat sink 70 It further comprises the step of mounting (S60).
- heat generated from the LED unit 30 is quickly discharged through the heat sink 70 immediately after passing through the heat radiating fins 40, thereby maximizing heat emission efficiency.
- the heat dissipation board structure and the manufacturing method of the LED lamp module according to the present invention configured as described above since the heat dissipation fins are formed in the base substrate so that the bottom contact each LED part, the heat generated from the LED part is most effectively the heat dissipation fins It is possible to discharge through.
- the present invention is configured to fit the heat radiation fins uniformly manufactured to the base substrate, it is easy to manufacture to facilitate convenience, and the heat radiation fins of a certain size are applied to minimize the defective rate and maximize the productivity of the product.
- the heat dissipation substrate structure and the manufacturing method of the LED lamp module according to the present invention can increase the heat dissipation efficiency by effectively dissipating heat generated from the LED by applying the heat dissipation structure coupled to the heat dissipation fins on the substrate itself, especially the uniform manufacturing process
- the manufacturing process is simple by applying the structure that inserts the heat radiation fin manufactured to a certain height and size through the board through the heat radiation fin produced at a constant height and size. And as a method, there is industrial applicability in various lighting manufacturing fields to which a heat radiating substrate for an optical device such as an LED lamp is applied.
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- Engineering & Computer Science (AREA)
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- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
Description
Claims (11)
- 상하로 관통되는 하나 또는 복수의 삽입홀이 형성되는 베이스기판과;상기 삽입홀의 상측은 개방되도록 상기 베이스기판의 상면에 형성되는 동박층과;상기 베이스기판의 삽입홀 상부에 위치하고 상기 동박층에 접하여 실장되는 LED부와;상기 베이스기판의 삽입홀 내에 삽입하여 끼움 결합하고 상기 LED부의 저면 쪽에 접촉하여 열을 방출가능하게 설치되는 방열핀;을 포함하고,상기 방열핀은 저면에 전극을 이용한 와이어방전가공에 의하여 형성된 방열리브 및 방열리브홈을 포함하여 이루어지는 것을 특징으로 하는 LED 램프 모듈의 방열기판구조.
- 청구항 1에 있어서,상기 방열핀은 은 재질 또는 구리에 은도금한 재질 중 어느 하나의 재질로 형성되는 것을 특징으로 하는 LED 램프 모듈의 방열기판구조.
- 청구항 1에 있어서,상기 베이스기판의 삽입홀 내부에서 상기 방열핀의 저면에 형성되는 열전도 패이스트층을 더 포함하여 이루어지는 것을 특징으로 하는 LED 램프 모듈의 방열기판구조.
- 청구항 1에 있어서,상기 베이스기판의 저면에 위치하는 방열고무시트를 더 포함하여 이루어지는 것을 특징으로 하는 LED 램프 모듈의 방열기판구조.
- 청구항 1 내지 청구항 4 중 어느 한 항에 있어서,상기 베이스기판의 저면 쪽에 설치되는 방열판을 더 포함하여 이루어지는 것을 특징으로 하는 LED 램프 모듈의 방열기판구조.
- 베이스기판 및 방열핀을 각각 제조하여 준비하는 단계와;상기 베이스기판의 상면에 동박층을 형성하는 단계와;상기 동박층의 상측에서부터 상기 베이스기판을 관통하여 하나 또는 복수의 삽입홀을 형성하는 단계와;상기 삽입홀을 향해 상기 방열핀을 끼움 결합하여 설치하는 단계와;상기 방열핀의 상부에 저면이 접촉하도록 실장하고 상기 동박층의 상부에 연결배선을 구비하여 LED부를 연결하는 단계;를 포함하고,상기 방열핀은 동선 또는 은선을 길이방향으로 인출하여 공급하는 피딩단계와, 상기 피딩단계로부터 공급된 동선 또는 은선의 일단에 와이어로부터 전극을 이용한 방전작용을 일으키게 접하여 절삭가공하는 와이어방전가공단계에 의해 방열리브 및 방열리브홈이 형성되는 것을 특징으로 하는 LED 램프 모듈의 방열기판 제조방법.
- 청구항 6에 있어서,상기 방열핀을 제조하기 위한 상기 피딩단계에서는, 동선 또는 은선을 물려 고정토록 결속시키는 단계와, 상호 맞물린 동선 또는 은선을 롤링작동에 의해 설정된 길이만큼만 공급하는 단계로 이루어지는 것을 특징으로 하는 LED 램프 모듈의 방열기판 제조방법.
- 청구항 6에 있어서,상기 방열핀을 제조하기 위한 상기 와이어방전가공단계에서는, 동선 또는 은선의 한쪽 면에 와이어가 접촉하여 핀 형상의 방열리브 및 방열리브홈을 가공토록 절삭하는 단계와, 동선 또는 은선에 대해 상기 방열핀의 길이로 절단하도록 절단하는 단계로 이루어지는 것을 특징으로 하는 LED 램프 모듈의 방열기판 제조방법.
- 청구항 6에 있어서,상기 방열핀을 설치한 다음 상기 삽입홀의 내부를 향한 상기 방열핀의 저면에 열전도 패이스트층을 형성하는 단계를 더 포함하여 이루어지는 것을 특징으로 하는 LED 램프 모듈의 방열기판 제조방법.
- 청구항 6에 있어서,상기 방열핀을 설치한 다음 상기 베이스기판의 저면에 방열고무시트를 형성하는 단계를 더 포함하여 이루어지는 것을 특징으로 하는 LED 램프 모듈의 방열기판 제조방법.
- 청구항 6 내지 청구항 10 중 어느 한 항에 있어서,상기 LED부가 실장된 상기 베이스기판을 방열판에 탑재하는 단계를 더 포함하여 이루어지는 것을 특징으로 하는 LED 램프 모듈의 방열기판 제조방법.
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DE102017119733A1 (de) | 2016-08-30 | 2018-03-01 | Varroc Lighting Systems, s.r.o. | Kühler, insbesondere für Signal- oder Beleuchtungsanlagen für Kraftfahrzeuge, und sein Herstellungsverfahren |
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KR102456143B1 (ko) * | 2021-01-21 | 2022-10-18 | 하상균 | 드론용 led 조명 조립체의 방열장치 |
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