WO2012120979A1 - 光源モジュール - Google Patents
光源モジュール Download PDFInfo
- Publication number
- WO2012120979A1 WO2012120979A1 PCT/JP2012/053419 JP2012053419W WO2012120979A1 WO 2012120979 A1 WO2012120979 A1 WO 2012120979A1 JP 2012053419 W JP2012053419 W JP 2012053419W WO 2012120979 A1 WO2012120979 A1 WO 2012120979A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light source
- insulating
- source module
- conductive
- circuit board
- Prior art date
Links
- 239000004065 semiconductor Substances 0.000 claims abstract description 38
- 239000000758 substrate Substances 0.000 claims abstract description 28
- 239000011810 insulating material Substances 0.000 claims abstract description 12
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 abstract 4
- 230000014759 maintenance of location Effects 0.000 abstract 2
- 229920005989 resin Polymers 0.000 description 32
- 239000011347 resin Substances 0.000 description 32
- 239000000463 material Substances 0.000 description 10
- 238000000465 moulding Methods 0.000 description 10
- 230000003287 optical effect Effects 0.000 description 6
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 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
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/40—Cooling of lighting devices
- F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
- F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
- F21S41/148—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/19—Attachment of light sources or lamp holders
- F21S41/192—Details of lamp holders, terminals or connectors
-
- 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
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
- F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
- F21V19/0055—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources by screwing
-
- 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
- F21V29/763—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 the direction of the light emitting axis
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/64—Heat extraction or cooling elements
- H01L33/644—Heat extraction or cooling elements in intimate contact or integrated with parts of the device other than the semiconductor body
-
- 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]
Definitions
- the present invention relates to a light source module, and more particularly to a light emitting module using a semiconductor light emitting element such as an LED as a light source.
- a light source module using a semiconductor light emitting element such as an LED (Light Emitting Diode) as a light source have been proposed.
- a light source module is used, for example, in a vehicular lamp that emits light emitted from a light source as illumination light.
- the light source module includes a circuit board that is mounted on the arrangement base of the light source holding member and on which the semiconductor light emitting element is mounted, and a power supply attachment that is connected to the power supply circuit and supplies power to the semiconductor light emitting element.
- a pair of connection terminals provided on the power supply attachment are respectively connected to a pair of power supply pieces formed on the circuit board (see, for example, Patent Document 1).
- the back surface of the circuit board is brought into close contact with the arrangement base of the light source holding member, so that the heat generated by the semiconductor light emitting element is released to the light source holding member.
- the circuit board tends to be downsized in order to reduce the size of the vehicular lamp.
- the contact area between the back surface of the circuit board and the placement base is reduced, and it is difficult to efficiently release the heat generated by the semiconductor light emitting element to the light source holding member simply by bringing the circuit board into close contact with the placement base.
- an object of the present invention is to provide a good light source module capable of reducing the size of the light source module and improving the heat dissipation while solving the above problems.
- the circuit board is A substrate portion on which the semiconductor light emitting element is mounted; A pair of terminal portions, a light source connection portion that connects the pair of terminal portions and the semiconductor light emitting element, and a conductive circuit formed on the surface of the substrate portion,
- the power supply attachment is An insulating part formed of an insulating material having a higher thermal conductivity than the substrate part; Formed of a conductive material, and having a conductive part embedded in the insulating part except for a part thereof,
- the power supply attachment is provided with a light source module attached to the light source holding member such that the insulating portion presses at least a part of the circuit board against the placement base.
- the conductive part is You may have a pressing piece part which protrudes from the said insulation part, hold
- a concave portion may be provided in a region corresponding to the conductive portion embedded in the insulating portion.
- a part of the conductive part embedded in the insulating part may be exposed to the outside from the concave part.
- the conductive portion may include a pair of power feeding pieces that protrude from the insulating portion and abut against the pair of terminal portions.
- the circuit board is A substrate portion on which the semiconductor light emitting element is mounted;
- the power supply attachment is An insulating part formed of an insulating material; Formed of a conductive material, and having a conductive part embedded in the insulating part except for a part thereof,
- the conductive portion has a pair of power feeding pieces that protrude from the insulating portion and abut against the pair of terminal portions,
- a light source module is provided in which a recess is provided in a region corresponding to the conductive portion embedded in the insulating portion.
- a part of the conductive part embedded in the insulating part may be exposed to the outside from the concave part.
- the conductive portion has a pressing piece that protrudes from the insulating portion, presses the outer peripheral portion of the circuit board, and presses the circuit board against the placement base;
- the concave portion may be provided at a position where a part of the conductive portion in the vicinity of the pressing piece portion is exposed to the outside.
- the insulating portion may be formed of an insulating material having a higher thermal conductivity than the substrate portion, and may be attached to the placement base so that at least a part thereof is pressed against the placement base.
- the conductive portion may include a pair of power feeding pieces that protrude from the insulating portion and abut against the pair of terminal portions.
- a part of the circuit board (for example, the back surface) is brought into close contact with the arrangement base of the light source holding member by the insulating portion of the power supply attachment. It can be well discharged to the light source holding member. Furthermore, a part of the insulating portion formed of an insulating material having high thermal conductivity is brought into close contact with the placement base, whereby the conductive portion that contacts the terminal portion of the circuit board and the power feeding piece or the circuit board is used as the placement base. The heat generated by the semiconductor light emitting element can also be released from the insulating portion to be pressed.
- the light source module can be further miniaturized without impairing the heat dissipation of the heat generated by the semiconductor light emitting element.
- the back surface of the circuit board is brought into close contact with the arrangement base of the light source holding member, so that a part of the heat generated from the semiconductor light emitting element comes into contact with the terminal portion of the circuit board.
- a concave portion is formed in a region corresponding to the conductive portion of the insulating portion, and the thickness of the region corresponding to the conductive portion is reduced, so that this heat is efficiently radiated into the atmosphere.
- the insulating portion itself also has a surface area that is larger than the case where there is no concave portion due to the formation of the concave portion. Emission efficiency into the atmosphere is improved.
- FIG. 5 is a cross-sectional view of the light source module taken along the line AA shown in FIG. It is a top view of the light source module which concerns on the modification of 1st Embodiment of this invention. It is a top view of the light source module which concerns on 2nd Embodiment of this invention.
- front and rear refers to the front and rear direction of the lamp 1 of the vehicle, that is, the direction substantially equal to the front and rear direction of the vehicle to which the vehicle lamp 1 is attached. Further, “left and right” indicate the side of the lamp 1 of the vehicle lamp 1, that is, the width direction of the vehicle.
- FIG. 1 is a schematic longitudinal sectional view showing a vehicular lamp 1 including a light source module 100 according to a first embodiment of the present invention.
- the vehicular lamp 1 is a vehicular headlamp that is attached to a front end portion of the vehicle, for example, and is attached so as to cover the lamp body 12 and an opening provided at the front end of the lamp body 12 as shown in FIG.
- the transparent light-transmitting cover 14 and a lamp unit 20 including a structure for forming a light distribution pattern for passing beams are formed.
- the lamp unit 20 is a so-called projector-type lamp unit, and includes a projection lens 21, a reflector 24, a shade 25, a light source module 100, a light source holding member 60, and a support member 70. Provided, and is fixed in the lamp chamber 16 formed by the lamp body 12 and the translucent cover 14. An extension 18 is disposed between the lamp unit 20 and the lamp body 12 so as to cover a gap between the lamp body 12 and the lamp unit 20 when viewed from the front of the lamp.
- the projection lens 21 is a plano-convex lens having a spherical convex surface on the front surface and a flat surface on the rear surface, and is arranged so that its lens optical axis substantially coincides with the lamp optical axis Ax extending in the vehicle front-rear direction.
- the light source module 100 is disposed on the rear side of the projection lens 21 and is positioned and fixed to a light source holding member 60 attached to the support member 70.
- the light source module 100 includes a light emitting diode 150 that is a light source of the vehicular lamp 1 and irradiates light from the light emitting diode 150 upward.
- the reflector 24 is a substantially dome-shaped member disposed above the light source module 100, and the concave surface thereof is a reflecting surface 24a.
- the reflecting surface 24a is formed in a substantially elliptical spherical shape having the lamp optical axis Ax as a central axis. Specifically, the reflecting surface 24a is set so that the cross-sectional shape including the lamp optical axis Ax is substantially equal to a part of the ellipse, and the eccentricity gradually increases from the vertical cross section toward the horizontal cross section. .
- the first focal point of the reflecting surface 24a is substantially the same as the position where the light emitting diode 150 is provided in the light source module 100, and the second focal point is the rear focal point ("F1" in FIG. 1) of the projection lens 21. It is almost equal to the position shown).
- the light emitted from the light emitting diode 150 of the light source module 100 is condensed and reflected toward the front of the lamp optical axis Ax by the reflecting surface 24a of the reflector 24, and includes the rear focal point (F1) of the projection lens 21.
- a light distribution pattern having an image on the focal plane as an inverted image is projected forward through the projection lens 21 (an example of a ray trajectory is indicated by “L1” in FIG. 1).
- the shade 25 is for forming a predetermined cut-off line in the light distribution pattern formed by the reflected light by shielding a part of the reflected light by the reflector 24, and between the projection lens 21 and the light source module 100. It is arranged in.
- FIG. 2 is an exploded perspective view of the light source holding member 60 and the light source module 100.
- FIG. 3 is a perspective view showing a state in which the light source module 100 is attached to the light source holding member 60.
- FIG. 4 is a top view of the light source module 100.
- 5 is a cross-sectional view of the light source module 100 taken along the line AA shown in FIG.
- the light source module 100 includes a power supply attachment 120 and a circuit board 140.
- the power supply attachment 120 supplies power to the light emitting diode 150 on the circuit board 140.
- the light source holding member 60 functions as a heat radiating member that releases heat generated from the circuit board 140 of the light source module 100 and the light emitting diode 150 mounted on the circuit board 140.
- the light source holding member 60 includes a heat radiating portion 61 having a plurality of heat radiating fins 61a projecting rearward and a substantially flat base portion 62 projecting forward from the heat radiating portion 61.
- a power supply attachment 120 and a circuit board 140 are disposed on the upper surface of the base portion 62.
- the base part 62 is provided integrally with the heat radiating part 61 so as to protrude forward from the heat radiating part 61 of the light source holding member 60.
- the base portion 62 is a substantially rectangular flat plate protruding from the front surface of the heat radiating portion 61, the mounting surface portions 64 provided on the left and right side portions and the front end portion on the upper surface, and the mounting surface portions 64 other than the mounting surface portion 64 on the upper surface.
- a substrate placement portion 63 provided with the portion raised by one step.
- the light source module 100 is attached to the front end side of the base portion 62.
- the circuit board 140 is placed on the board placement portion 63
- the power supply attachment 120 is placed on the board placement portion 63 so as to press the circuit board 140 against the board placement portion 63.
- 100 can be fixed to the base portion 62.
- a plurality of positioning pins 63 a for positioning the circuit board 140 on the board placement section 63 when the circuit board 140 of the light source module 100 is placed on the board placement section 63 are provided on the front surface of the board placement section 63. It is provided so as to protrude upward. Further, on both the left and right sides of the mounting surface portion 64, screw holes 64a into which mounting screws 200 for fixing the power supply attachment 120 of the light source module 100 are screwed are formed. In addition, a rib 64b is provided in front of and behind the screw hole 64a in the mounting surface portion 64 for positioning the attached piece 125 of the power feeding attachment 120 on the mounting surface portion 64 when the power feeding attachment 120 is attached to the mounting surface portion 64. It has been.
- the circuit board 140 includes a substrate part 141 having no conductivity and a conductive circuit 142 provided on the substrate part 141, and a plurality (four in this example) of light emitting diodes 150 are mounted in the center part. .
- These light emitting diodes 150 are an example of a semiconductor light emitting element in the present invention.
- the substrate part 141 is formed of, for example, an epoxy resin material.
- the conductive circuit 142 is formed of, for example, aluminum.
- the substrate unit 141 may be a silicon substrate.
- the conductive circuit 142 may be formed on the silicon substrate by copper plating, for example.
- the conductive circuit 142 includes a light source connection part 142a and a terminal part 142b, for example, as shown in FIG.
- the light source connection part 142 a has a light emitting diode 150 attached to the upper surface thereof, and is electrically connected to each light emitting diode 150.
- the terminal part 142b is a circuit pattern continuous with the light source connection part 142a, and a pair of terminal parts 142b are provided on both sides of the board part 141 with the light source connection part 142a interposed therebetween.
- the power supply attachment 120 includes a resin molded portion (insulating portion) 121 formed of a resin material having no conductivity, and a conductive portion 131 formed of a material having conductivity such as metal (FIGS. 2 to 2). (See FIG. 4).
- the conductive portion 131 is embedded in the resin molded portion 121 except for a part.
- the resin material constituting the resin molded portion 121 has a thermal conductivity of, for example, 5.0 to 10.0 [W / m ⁇ K], which is a resin material (thermal conductivity) used in conventional resin molded portions. Is 1.0 [W / m ⁇ K] or less), and a material having high thermal conductivity is used.
- a nylon resin is preferably used as a constituent material of the resin molding portion 121.
- the power supply attachment 120 is formed by, for example, so-called insert molding in which a conductive portion 131 is disposed at a predetermined position in a cavity of a molding die, and the cavity is filled with a molten resin and cured. Thereby, the conductive part 131 and the resin molding part 121 are integrally molded.
- the resin molded portion 121 is an example of an insulating portion in the present invention, and protrudes in the left and right directions from the frame-shaped portion 123, the connector case portion 124 protruding forward from the frame-shaped portion 123, and the frame-shaped portion 123.
- An opening 126 in which the circuit board 140 is disposed is provided inside the frame-shaped portion 123.
- a positioning protrusion 123 a that protrudes rearward is provided at the center in the left-right direction of the front inner surface of the opening 126.
- a positioning protrusion 123b that protrudes toward the front side is provided at the center in the left-right direction on the rear inner surface of the opening 126.
- the connector case portion 124 has a substantially rectangular tube outer shape, and a concave space is formed inside the opening provided on the front side.
- a connector terminal portion 133 in a conductive portion 131 protrudes from the rear wall surface toward the front side.
- the attached piece 125 is formed with a screw insertion hole 125 a penetrating vertically, and the upper surface thereof is lower than the upper surface of the frame-shaped portion 123.
- the power supply attachment 120 is placed on the base portion 62 so that the two screw insertion holes 125a provided in the attached piece portion 125 correspond to the two screw holes 64a of the base portion 62, and the attachment screws 200 are screwed together. By doing so, the power supply attachment 120 can be attached to the base portion 62.
- the conductive portion 131 includes a base portion 132 that is substantially annular and entirely embedded in the resin molding portion 121, a connector terminal portion 133 that protrudes forward from a front end portion (front end portion) of the base portion 132, and a base portion Power supply piece 134 projecting inward from the left and right side portions of 132, connecting portion 135 connecting the rear end portion (rear end portion) of base portion 132, and the rear end portion of base portion 132 forward. It has two pressing piece portions 137 that protrude and two pressing piece portions 138 that protrude backward from the front end portion of the base portion 132.
- the connecting portion 135 is cut when the light source module 100 is attached to the base portion 62 of the light source holding member 60 and used. Thereby, the handleability of the conductive part 131 is improved.
- the connector terminal portion 133 has a portion close to the base portion 132 embedded in the resin molded portion 121, and a portion away from the base portion 132 (tip portion) is exposed from the resin molded portion 121. It protrudes forward from the rear side wall surface of the internal space. These connector terminal portions 133 are electrically connected to terminals on the connector side when a connector (not shown) is inserted into the connector case portion 124.
- the pressing piece portions 137 and 138 are plate-like members extending from the base portion 132, abut against the outer peripheral portion of the circuit board 140 where the conductive circuit 142 is not provided, and press the circuit board 140 toward the base portion 62 side.
- the holding pieces 137 and 138 may be formed of the same material as that of the conductive portion 131, but are preferably formed of a material having a higher thermal conductivity.
- the circuit board 140 is connected to the light source holding member 60 by the resin molding portion 121 and the pressing piece portions 137 and 138 of the power supply attachment 120. Since it is pressed against the base portion 62, the bottom surface of the circuit board 140 and the top surface of the base portion 62 are in close contact. Thereby, the heat emitted from the light emitting diode 150 and transmitted to the circuit board 140 can be efficiently released to the light source holding member 60.
- the resin molding portion 121 is formed of an insulating material having a higher thermal conductivity than the substrate portion 141 of the circuit board 140, the heat generated from the light emitting diode 150 and transmitted to the circuit board 140 is resin molding portion 121. Can be efficiently discharged from the portion in contact with the circuit board 140. Furthermore, the heat generated by the light emitting diode 150 can also be released from the power feeding piece 134 that contacts the terminal portion 142b of the circuit board 140.
- the pressing pieces 137 and 138 are formed of an insulating material unlike the other portions of the conductive portion 131, the pressing pieces 137 and 138 are pressed to transmit the heat generated by the light emitting diode 150 to the holding pieces 137 and 138 more efficiently.
- the pieces 137 and 138 may be in contact with the conductive circuit 142.
- two holding pieces 137 and 138 are provided, but the number and positions of the holding pieces 137 and 138 are not limited thereto.
- FIG. 6 is a top view of a light source module 100A according to a modification of the first embodiment. Since the light source module 100A of this example is different from the light source module 100 in a part of the configuration, an exploded perspective view and a diagram showing a state of being attached to the light source holding member 60 are omitted. About the same structure, the same code
- the heat generated from the light emitting diode 150 is transmitted to the conductive portion 131 through the power feeding portion 134 that contacts the terminal portion 142b of the circuit board 140. Therefore, by providing a plurality of concave portions 127 in the region corresponding to the conductive portion 131 in the surface of the resin molded portion 121, the thickness of the resin molded portion 121 around the conductive portion 131 is reduced. The heat transferred to can be efficiently radiated to the atmosphere. Further, since the surface area of the resin molded portion 121 itself is increased by providing the concave portion 127 as compared with the case where the concave portion 127 is not provided, the efficiency of releasing heat transmitted to the resin molded portion 121 to the atmosphere is also improved.
- the concave portion 127 may be formed as a hole penetrating from the surface of the resin molded portion 121 to the conductive portion 131 so that a part of the conductive portion 131 is exposed to the outside. By using the concave portion 127 as a through hole, the heat transmitted to the conductive portion 131 can be more efficiently radiated to the atmosphere.
- the vicinity of the holding piece portions 137 and 138 of the conductive portion 131 may be exposed to the outside by the concave portion 127. Thereby, the heat transmitted from the holding pieces 137 and 138 holding the outer peripheral portion of the circuit board 140 to the conductive portion 131 can be efficiently radiated to the atmosphere.
- the concave portion 127 may be formed as a plurality of concave portions independently along the conductive portion 131 as illustrated, or may be formed as a single concave portion having a shape along the conductive portion 131.
- FIG. 7 is a top view of the light source module 101 according to the second embodiment of the present invention. Since the light source module 101 of this example is different from the light source module 100 only in a part of the configuration, an exploded perspective view and a diagram showing a state of being attached to the light source holding member 60 are omitted. About the same structure, the same code
- the holding piece 137 is separate from the conductive portion 131 and extends to the rear of the resin molded portion 121 so as to bypass the outer surface of the resin molded portion 121.
- the extending portion 139 extending to the rear of the resin molding portion 121 in the pressing piece 137 is on the surface of the substrate placement portion 63 in the light source holding member 60. Abut.
- the light source module 101 can more efficiently release the heat generated by the light emitting diode 150 via the holding piece 137. Further, in the light source module 101 of the present example, since the holding piece 137 is separate from the conductive portion 131, a material having a higher thermal conductivity than the conductive portion 131 can be used.
- the concave portion 127 may be formed in a region corresponding to the conductive portion 131 on the surface of the resin molded portion 121. Thereby, the heat transmitted to the conductive part 131 can be efficiently radiated to the atmosphere.
- FIG. 9 is a top view of the light source module 102 according to the third embodiment of the present invention. Since the light source module 102 of this example is different from the light source modules 100 and 101 only in a part of the configuration, an exploded perspective view and a diagram showing a state of being attached to the light source holding member 60 are omitted. About the same structure as 100 and 101, the same code
- a part of the base portion 132 in the conductive portion 131 extends to the outside (rear side) of the resin molding portion 121.
- the extended portion does not come into contact with the light source holding member 60 when the light source module 102 is attached to the light source holding member 60, but the light source holding member 60 is formed of an insulating material, and The protruding portion may be brought into contact with the light source holding member 60.
- the light source module 102 can release the heat generated by the light emitting diode 150 into the air through the portion of the base portion 132 that extends to the outside of the resin molded portion 121, so that the heat dissipation efficiency is higher. improves.
- the concave portion 127 may be formed in a region corresponding to the conductive portion 131 on the surface of the resin molded portion 121. Thereby, the heat transmitted to the conductive part 131 can be efficiently radiated to the atmosphere.
- a part of the circuit board (for example, the back surface) is brought into close contact with the arrangement base of the light source holding member by the insulating portion of the power supply attachment. It can be well discharged to the light source holding member. Furthermore, a part of the insulating portion formed of an insulating material having high thermal conductivity is brought into close contact with the placement base, whereby the conductive portion that contacts the terminal portion of the circuit board and the power feeding piece or the circuit board is used as the placement base. The heat generated by the semiconductor light emitting element can also be released from the insulating portion to be pressed.
- the light source module can be further miniaturized without impairing the heat dissipation of the heat generated by the semiconductor light emitting element.
- SYMBOLS 1 Vehicle lamp, 12 ... Lamp body, 14 ... Translucent cover, 16 ... Light chamber, 18 ... Extension, 20 ... Condensing lamp unit, 21 ... Projection lens, 24 ... Reflector, 25 ... Shade, 60 ... Light source Holding member 61 ... Radiation part 61a ... Radiation fin 62 62 Arrangement base 63 63 Substrate arrangement part 63a Projection pin 64 64 Mounting surface part 64a Screw hole 64b Positioning protrusion 70 Support member , 100, 101, 102 ... light source module, 120 ... feed attachment, 121 ... resin molded part (insulating part), 123 ... frame-like part, 123a, 123b ...
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (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
光源モジュールは、光源保持部材の配置用ベースに載置されて表面に半導体発光素子が搭載された回路基板と、電源回路に接続されて半導体発光素子に給電を行うための給電アタッチメントとを有し、回路基板に形成された一対の給電片に給電アタッチメントに設けられた一対の接続端子がそれぞれ接続されている(例えば、特許文献1参照)。
そこで、回路基板の裏面を光源保持部材の配置用ベースに密着させることにより、半導体発光素子が発する熱を光源保持部材へ放出するように構成している。
表面に半導体発光素子が搭載され、光源保持部材の配置用ベースに載置される回路基板と、
前記半導体発光素子に電力を供給する給電アタッチメントと、を備え、
前記回路基板は、
前記半導体発光素子が搭載される基板部と、
一対の端子部と、一対の前記端子部と前記半導体発光素子とを接続する光源接続部とを有し、前記基板部の表面に形成された導電回路と、を有し、
前記給電アタッチメントは、
前記基板部より熱伝導率の高い絶縁材料によって形成された絶縁部と、
導電材料によって形成され、一部を除いて前記絶縁部に埋設された導電部とを有し、
前記給電アタッチメントは、前記絶縁部が前記回路基板の少なくとも一部を前記配置用ベースに押し付けるように、前記光源保持部材に取り付けられている、光源モジュールが提供される。
前記導電部は、
前記絶縁部から突出し、前記回路基板の外周部を押さえて前記回路基板を前記配置用ベースに押し付ける押さえ片部を有してもよい。
前記絶縁部のうち埋設された前記導電部に対応する領域に凹部が設けられていてもよい。
前記絶縁部に埋設された前記導電部の一部が、前記凹部から外部に露出されていてもよい。
前記導電部は、前記絶縁部から突出し一対の前記端子部にそれぞれ当接する一対の給電片を有してもよい。
表面に半導体発光素子が搭載され、光源保持部材の配置用ベースに載置される回路基板と、
前記半導体発光素子に電力を供給する給電アタッチメントと、を備え、
前記回路基板は、
前記半導体発光素子が搭載される基板部と、
一対の端子部と、一対の前記端子部と前記半導体発光素子とを接続する光源接続部とを有し、前記基板部の表面に形成された導電回路と、を有し、
前記給電アタッチメントは、
絶縁材料によって形成された絶縁部と、
導電材料によって形成され、一部を除いて前記絶縁部に埋設された導電部とを有し、
前記導電部は、前記絶縁部から突出し、一対の前記端子部にそれぞれ当接する一対の給電片を有し、
前記絶縁部のうち埋設された前記導電部に対応する領域に凹部が設けられている、光源モジュールが提供される。
前記絶縁部に埋設された前記導電部の一部が、前記凹部から外部に露出されていてもよい。
前記導電部は、前記絶縁部から突出し、前記回路基板の外周部を押さえて前記回路基板を前記配置用ベースに押し付ける押さえ片部を有し、
前記凹部は、前記押さえ片部近傍の前記導電部の一部を外部に露出させる位置に設けられていてもよい。
前記絶縁部は、前記基板部よりも熱伝導率の高い絶縁材料によって形成され、少なくとも一部が前記配置用ベースに押し付けられるように前記配置用ベースに取り付けられていてもよい。
前記導電部は、前記絶縁部から突出し一対の前記端子部にそれぞれ当接する一対の給電片を有してもよい。
したがって、配置用ベースとの接触面積が小さい小型の回路基板を用いた場合でも、半導体発光素子が発する熱を光源保持部材へ効率良く放出させることができる。
ゆえに、半導体発光素子が発する熱についての放熱性を損ねることなく光源モジュールをより小型化することができる。
以下、添付図面に基づいて本発明の第1実施形態に係る光源モジュール100を備えた車両用灯具1について説明する。なお、以下の説明において「前後」とは車両用灯具1の灯具前後方向、すなわち車両用灯具1が取り付けられる車両の前後方向と略等しい方向を示すものとする。また、「左右」とは、車両用灯具1の灯具側方、すなわち車両の幅方向を示すものとする。
給電アタッチメント120と回路基板140がベース部62に取り付けられる際には、回路基板140は、これらの位置決め突部123a,123bによって、枠状部123の開口部126内で位置決めされる。
図7は、本発明の第2実施形態に係る光源モジュール101の上面図である。本例の光源モジュール101は、上記の光源モジュール100に対して一部の構成のみ異なることから、分解斜視図や光源保持部材60に取り付けた状態を示す図などを省略するとともに、光源モジュール100と同じ構成については、同じ符号を付してその説明を省略する。
図9は、本発明の第3実施形態に係る光源モジュール102の上面図である。本例の光源モジュール102は、上記の光源モジュール100,101に対して一部の構成のみ異なることから、分解斜視図や光源保持部材60に取り付けた状態を示す図などを省略するとともに、光源モジュール100,101と同じ構成については、同じ符号を付してその説明を省略する。
本出願は、2011年3月7日出願の日本特許出願(特願2011-49102)、2011年3月30日出願の日本特許出願(特願2011-74319)に基づくものであり、その内容はここに参照として取り込まれる。
Claims (10)
- 表面に半導体発光素子が搭載され、光源保持部材の配置用ベースに載置される回路基板と、
前記半導体発光素子に電力を供給する給電アタッチメントと、を備え、
前記回路基板は、
前記半導体発光素子が搭載される基板部と、
一対の端子部と、一対の前記端子部と前記半導体発光素子とを接続する光源接続部とを有し、前記基板部の表面に形成された導電回路と、を有し、
前記給電アタッチメントは、
前記基板部より熱伝導率の高い絶縁材料によって形成された絶縁部と、
導電材料によって形成され、一部を除いて前記絶縁部に埋設された導電部とを有し、
前記給電アタッチメントは、前記絶縁部が前記回路基板の少なくとも一部を前記配置用ベースに押し付けるように、前記光源保持部材に取り付けられている、光源モジュール。 - 前記導電部は、
前記絶縁部から突出し、前記回路基板の外周部を押さえて前記回路基板を前記配置用ベースに押し付ける押さえ片部を有する、請求項1に記載の光源モジュール。 - 前記絶縁部のうち埋設された前記導電部に対応する領域に凹部が設けられている、請求項1または2に記載の光源モジュール。
- 前記絶縁部に埋設された前記導電部の一部が、前記凹部から外部に露出されている、請求項3に記載の光源モジュール。
- 前記導電部は、前記絶縁部から突出し一対の前記端子部にそれぞれ当接する一対の給電片を有する、請求項1から4のいずれか一項に記載の光源モジュール。
- 表面に半導体発光素子が搭載され、光源保持部材の配置用ベースに載置される回路基板と、
前記半導体発光素子に電力を供給する給電アタッチメントと、を備え、
前記回路基板は、
前記半導体発光素子が搭載される基板部と、
一対の端子部と、一対の前記端子部と前記半導体発光素子とを接続する光源接続部とを有し、前記基板部の表面に形成された導電回路と、を有し、
前記給電アタッチメントは、
絶縁材料によって形成された絶縁部と、
導電材料によって形成され、一部を除いて前記絶縁部に埋設された導電部とを有し、
前記導電部は、前記絶縁部から突出し、一対の前記端子部にそれぞれ当接する一対の給電片を有し、
前記絶縁部のうち埋設された前記導電部に対応する領域に凹部が設けられている、光源モジュール。 - 前記絶縁部に埋設された前記導電部の一部が、前記凹部から外部に露出されている、請求項6に記載の光源モジュール。
- 前記導電部は、前記絶縁部から突出し、前記回路基板の外周部を押さえて前記回路基板を前記配置用ベースに押し付ける押さえ片部を有し、
前記凹部は、前記押さえ片部近傍の前記導電部の一部を外部に露出させる位置に設けられている、請求項6または7に記載の光源モジュール。 - 前記絶縁部は、前記基板部よりも熱伝導率の高い絶縁材料によって形成され、少なくとも一部が前記配置用ベースに押し付けられるように前記配置用ベースに取り付けられている、請求項6から8のいずれか一項に記載の光源モジュール。
- 前記導電部は、前記絶縁部から突出し一対の前記端子部にそれぞれ当接する一対の給電片を有する、請求項6から9のいずれか一項に記載の光源モジュール。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013503435A JPWO2012120979A1 (ja) | 2011-03-07 | 2012-02-14 | 光源モジュール |
US14/003,158 US9035346B2 (en) | 2011-03-07 | 2012-02-14 | Light source module |
CN201280012281.1A CN103415738B (zh) | 2011-03-07 | 2012-02-14 | 光源模块 |
EP12754713.1A EP2685154A1 (en) | 2011-03-07 | 2012-02-14 | Light source module |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011049102 | 2011-03-07 | ||
JP2011-049102 | 2011-03-07 | ||
JP2011-074319 | 2011-03-30 | ||
JP2011074319 | 2011-03-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012120979A1 true WO2012120979A1 (ja) | 2012-09-13 |
Family
ID=46797948
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2012/053419 WO2012120979A1 (ja) | 2011-03-07 | 2012-02-14 | 光源モジュール |
Country Status (5)
Country | Link |
---|---|
US (1) | US9035346B2 (ja) |
EP (1) | EP2685154A1 (ja) |
JP (1) | JPWO2012120979A1 (ja) |
CN (1) | CN103415738B (ja) |
WO (1) | WO2012120979A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015041182A1 (ja) * | 2013-09-17 | 2015-03-26 | 株式会社小糸製作所 | アタッチメントおよび照明装置 |
EP3587908A1 (en) * | 2018-06-22 | 2020-01-01 | Toshiba Lighting & Technology Corporation | Vehicle luminaire and vehicle lamp device |
US10571089B2 (en) | 2016-04-18 | 2020-02-25 | Koito Manufacturing Co., Ltd. | Power supply attachment and automotive lamp |
KR20200028301A (ko) * | 2018-09-05 | 2020-03-16 | 제트카베 그룹 게엠베하 | Dmd 모듈 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10260705B2 (en) * | 2015-03-31 | 2019-04-16 | Koninklijke Philips N.V. | LED lighting module with heat sink and a method of replacing an LED module |
US9945541B1 (en) | 2016-12-20 | 2018-04-17 | Keeper Technology Co., Ltd. | Light-emitting diode module holder |
US10260696B2 (en) | 2016-12-22 | 2019-04-16 | Keeper Technology Co., Ltd. | Light-emitting diode module holder |
US10066800B1 (en) | 2017-09-21 | 2018-09-04 | Keeper Technology Co., Ltd. | Light-emitting diode fixing apparatus |
US10581220B2 (en) * | 2018-03-01 | 2020-03-03 | Nichia Corporation | Light emitting module |
WO2021002336A1 (ja) * | 2019-07-04 | 2021-01-07 | 株式会社小糸製作所 | 光源ユニット、車両用灯具および光源ユニットの製造方法 |
CN115199993B (zh) * | 2022-05-18 | 2024-04-12 | 深圳市力子光电科技有限公司 | 一种透镜式电器元件及发光设备 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004265626A (ja) * | 2003-02-13 | 2004-09-24 | Matsushita Electric Ind Co Ltd | Led光源用ソケット |
JP2009199779A (ja) * | 2008-02-19 | 2009-09-03 | Ichikoh Ind Ltd | 車両用灯具 |
JP2010192139A (ja) | 2009-02-16 | 2010-09-02 | Koito Mfg Co Ltd | 光源モジュール及び車輌用灯具 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE602004028099D1 (de) * | 2003-02-07 | 2010-08-26 | Panasonic Corp | Beleuchtungseinrichtung, einen sockel verwendend, um ein flaches led-modul auf einen kühlkörper zu montieren |
JP4535453B2 (ja) | 2006-03-06 | 2010-09-01 | 株式会社小糸製作所 | 光源モジュール及び車輌用灯具 |
JP5035995B2 (ja) * | 2008-03-21 | 2012-09-26 | 株式会社小糸製作所 | 光源モジュール及び車輌用灯具 |
JP2011066133A (ja) * | 2009-09-16 | 2011-03-31 | Koito Mfg Co Ltd | 発光モジュール及び車輌用灯具 |
US8342733B2 (en) * | 2009-12-14 | 2013-01-01 | Tyco Electronics Corporation | LED lighting assemblies |
-
2012
- 2012-02-14 JP JP2013503435A patent/JPWO2012120979A1/ja active Pending
- 2012-02-14 US US14/003,158 patent/US9035346B2/en active Active
- 2012-02-14 EP EP12754713.1A patent/EP2685154A1/en not_active Withdrawn
- 2012-02-14 WO PCT/JP2012/053419 patent/WO2012120979A1/ja active Application Filing
- 2012-02-14 CN CN201280012281.1A patent/CN103415738B/zh not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004265626A (ja) * | 2003-02-13 | 2004-09-24 | Matsushita Electric Ind Co Ltd | Led光源用ソケット |
JP2009199779A (ja) * | 2008-02-19 | 2009-09-03 | Ichikoh Ind Ltd | 車両用灯具 |
JP2010192139A (ja) | 2009-02-16 | 2010-09-02 | Koito Mfg Co Ltd | 光源モジュール及び車輌用灯具 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015041182A1 (ja) * | 2013-09-17 | 2015-03-26 | 株式会社小糸製作所 | アタッチメントおよび照明装置 |
JPWO2015041182A1 (ja) * | 2013-09-17 | 2017-03-02 | 株式会社小糸製作所 | アタッチメントおよび照明装置 |
US10571089B2 (en) | 2016-04-18 | 2020-02-25 | Koito Manufacturing Co., Ltd. | Power supply attachment and automotive lamp |
EP3587908A1 (en) * | 2018-06-22 | 2020-01-01 | Toshiba Lighting & Technology Corporation | Vehicle luminaire and vehicle lamp device |
KR20200028301A (ko) * | 2018-09-05 | 2020-03-16 | 제트카베 그룹 게엠베하 | Dmd 모듈 |
KR102282008B1 (ko) | 2018-09-05 | 2021-07-28 | 제트카베 그룹 게엠베하 | Dmd 모듈 |
Also Published As
Publication number | Publication date |
---|---|
CN103415738B (zh) | 2016-04-27 |
US9035346B2 (en) | 2015-05-19 |
EP2685154A1 (en) | 2014-01-15 |
JPWO2012120979A1 (ja) | 2014-07-17 |
CN103415738A (zh) | 2013-11-27 |
US20130341670A1 (en) | 2013-12-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2012120979A1 (ja) | 光源モジュール | |
US8950917B2 (en) | Vehicular lamp | |
JP5570331B2 (ja) | 車両用灯具 | |
EP2522898B1 (en) | Vehicle lamp | |
JP5479751B2 (ja) | 光源モジュール及び車輌用灯具 | |
JP2009016341A (ja) | 少なくとも1つの発光ダイオードを支持する装備された可撓性電子支持体およびその製造方法 | |
JP2012043750A (ja) | 車両用灯具の半導体型光源の光源ユニット、車両用灯具 | |
JP2017191905A (ja) | 光源モジュール | |
JP6251991B2 (ja) | 車両用灯具の半導体型光源、車両用灯具 | |
JP2009199779A (ja) | 車両用灯具 | |
JP5749837B2 (ja) | 光源固定用アタッチメント | |
JP5073617B2 (ja) | 車両用灯具 | |
JP6209387B2 (ja) | 車両用灯具 | |
US12025284B2 (en) | Vehicle lighting unit | |
JP2009199780A (ja) | 車両用灯具 | |
JP5702843B2 (ja) | 光源モジュール及び車輌用灯具 | |
CN215001387U (zh) | 照明模块和照明系统 | |
JP2012084279A (ja) | 車両用灯具の半導体型光源の光源ユニット、車両用灯具 | |
JP2019106263A (ja) | 車両用照明装置、および車両用灯具 | |
JP7280104B2 (ja) | 灯具ユニット | |
WO2023074674A1 (ja) | 車両用灯具 | |
JP2023067055A (ja) | 車両用灯具 | |
JP2018206724A (ja) | 光源モジュール |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201280012281.1 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 12754713 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2013503435 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14003158 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2012754713 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |