WO2011105049A1 - 光源装置 - Google Patents
光源装置 Download PDFInfo
- Publication number
- WO2011105049A1 WO2011105049A1 PCT/JP2011/000979 JP2011000979W WO2011105049A1 WO 2011105049 A1 WO2011105049 A1 WO 2011105049A1 JP 2011000979 W JP2011000979 W JP 2011000979W WO 2011105049 A1 WO2011105049 A1 WO 2011105049A1
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- WO
- WIPO (PCT)
- Prior art keywords
- base
- pair
- source device
- light source
- light emitting
- Prior art date
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Classifications
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- 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
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
- F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
- F21V17/164—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being subjected to bending, e.g. snap joints
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- 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
- F21K9/20—Light sources comprising attachment means
- F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
-
- 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
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
- F21V17/12—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening 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
- 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
- F21V19/0035—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources the fastening means being capable of simultaneously attaching of an other part, e.g. a housing portion or an optical component
-
- 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. 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
- F21V31/00—Gas-tight or water-tight arrangements
- F21V31/005—Sealing arrangements therefor
-
- 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
- F21V5/00—Refractors for light sources
- F21V5/007—Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane
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- 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
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
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- 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]
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- 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
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/36—Assembling printed circuits with other printed circuits
- H05K3/366—Assembling printed circuits with other printed circuits substantially perpendicularly to each other
Definitions
- the present invention relates to a light source device using a light emitting element such as an LED (light emitting diode) as a light source.
- a light emitting element such as an LED (light emitting diode)
- Patent Documents 1 and 2 In recent years, with the commercialization of high-brightness LEDs, attempts have been made to use light source devices using LEDs as light sources as substitutes for halogen bulbs and incandescent bulbs (Patent Documents 1 and 2).
- the LED module is mounted on a base made of a material with good heat dissipation such as aluminum, and a cover covering the LED module is attached to the base.
- a case made of an insulating material such as resin is attached to the side opposite to the LED module of the base, and a lighting unit for lighting the LED module is accommodated in the case, and a base of the case is used.
- a base is attached on the opposite side to the base.
- lead wires of the lighting unit are provided in the through holes provided in advance in the base. It is necessary to work to connect the lead wire to the feed terminal of the LED module. In addition, it is also necessary to attach a plurality of parts such as an LED module and a case to a base while aligning them. Since such work is complicated and the work efficiency of assembly is poor, a light source device that is easier to assemble is desired.
- An object of the present invention is to provide a light source device which is easier to assemble than the conventional one in view of the above problems.
- one aspect of a light source device includes a light emitting module having a light emitting element mounted on a mounting substrate, a base on which the light emitting module is mounted, and the light emitting module lit
- a light source unit comprising: a lighting unit to be turned on; and a case disposed on the opposite side of the light emitting module of the base and containing the lighting unit therein; the lighting unit has a pair of pin terminals; A pair of through holes are formed in the base and the mounting substrate, and a pair of feed terminals are provided on the mounting substrate at portions corresponding to the pair of through holes, and the pair of pin terminals are the base The pair of feed terminals are electrically connected to the pair of feed terminals in a state where the pair of through holes of the base and the mounting substrate are penetrated.
- Another aspect of the light source device includes a light emitting module having a light emitting element mounted on a mounting substrate, a base on which the light emitting module is mounted, a lighting unit for lighting the light emitting module, and It is a light source device provided with the case arranged on the opposite side to the light emitting module of the base and housing the lighting unit in the inside, and a pair of the light emitting module protruding from the mounting substrate to the opposite side to the light emitting element
- the base is provided with a pair of through holes, and the pair of connectors is provided with an engaging portion to be engaged with the lighting unit, and the pair of connectors is the pair of connectors.
- the light emitting unit is engaged with the lighting unit in a state of penetrating the through hole, and the light emitting module and the lighting unit are electrically connected.
- the pair of pin terminals of the lighting unit is electrically connected to the pair of feed terminals of the light emitting module in a state where the pair of pin terminals of the lighting unit penetrates the pair of through holes of the base and the mounting substrate.
- the pair of pin terminals can be positioned at a predetermined position with respect to the mounting substrate by a simple operation of penetrating the pair of pin terminals through the pair of through holes, and a light emitting module And the case can be positioned at a predetermined position with respect to the base.
- the light source device is engaged with the lighting unit in a state where the pair of connectors attached to the light emitting module penetrate the pair of through holes of the base, and the lighting unit and the light emitting module Can be positioned at a predetermined position relative to the lighting unit by a simple operation of penetrating the pair of connectors through the pair of through holes.
- the light emitting module and the case can be positioned at predetermined positions with respect to the base.
- electrical connection between the lighting unit and the light emitting module is easy, and attachment of the light emitting module and the case to the base is also easy. It is easy to assemble.
- a perspective view showing a light source device according to the first embodiment An exploded perspective view for explaining an assembly procedure of the light source device according to the first embodiment
- Sectional view for explaining the internal structure of the connector A perspective view showing a light source device according to a second embodiment
- An exploded perspective view showing a light source device according to a modification of the second embodiment Schematic diagram for explaining a modification of the second embodiment
- Sectional view showing a light source device according to a fourth embodiment The perspective view showing the cover concerning a 4th embodiment
- the figure for demonstrating the connector of the light source device concerning a 5th embodiment A diagram showing a light source device according to a sixth embodiment Figure for explaining the installation of
- FIG. 1 is a perspective view showing a light source device according to the first embodiment.
- 2 to 4 are exploded perspective views for explaining the assembly procedure of the light source device according to the first embodiment.
- the light source device 100 is a substitute for a halogen spotlight, and includes a lighting unit 110, a case 120, a base 130, a base 140, and an LED module (light emitting module) 150. , A pair of connectors 160 and a cover 170.
- a halogen light bulb is a light bulb defined in JIS C 7527.
- the lighting unit 110 includes, for example, a lighting circuit including a rectifier circuit that rectifies AC power supplied from a commercial power source into DC power, and a voltage adjustment circuit that adjusts the voltage value of DC power rectified by the rectifier circuit. And make the LED module 150 emit light using a commercial power source.
- the lighting unit 110 includes a rectangular plate-shaped circuit board 111 on which a plurality of electronic components (not shown) such as a diode bridge, an electrolytic capacitor, a differential amplifier and a microcomputer are mounted. It has a pair of pin terminals 112a and 112b electrically connected, and a pair of conducting wires 113a and 113b electrically connected to the base 130.
- a plurality of electronic components such as a diode bridge, an electrolytic capacitor, a differential amplifier and a microcomputer are mounted. It has a pair of pin terminals 112a and 112b electrically connected, and a pair of conducting wires 113a and 113b electrically connected to the base 130.
- the pin terminals 112a and 112b are wiring patterns formed on the circuit board 111 by soldering, welding or the like in a state where the one end portions 114a and 114b are inserted through the mounting holes 115a and 115b formed in the circuit board 111. It is connected with (not shown). As described above, by inserting the pin terminals 112a and 112b into the attachment holes 115a and 115b of the circuit board 111, the load applied to the pin terminals 112a and 112b can be released to the circuit board 111. Therefore, the connection between the pin terminals 112a and 112b and the wiring pattern is not easily broken.
- one end portions 114a and 114b of the pin terminals 112a and 112b have bent portions 116a and 116b which are bent in a hook shape. Since the load applied to the pin terminals 112a and 112b is dispersed by the bent portions 116a and 116b, the connection points between the pin terminals 112a and 112b and the wiring pattern are more difficult to be broken.
- the pin terminals 112 a and 112 b not only serve as feed terminals for feeding the LED module 150, but also serve as positioning pins for positioning the base 140 and the LED module 150 with respect to the case 120.
- the base 140 and the LED module 150 are respectively formed in the case 120 by penetrating the pin terminals 112 a and 112 b in the through holes 144 a and 144 b of the base 140 and the through holes 154 a and 154 b of the LED module 150.
- the pin terminals 112 a and 112 b project from the case 120 at the other end (tip end) 117 a and 117 b side so as to function as a positioning pin.
- the protruding length of the pin terminals 112a and 112b is preferably in the range of 1 to 5 mm. If it is shorter than the range, it is difficult to penetrate the pin terminals 112a and 112b into the through holes 144a and 144b of the base 140 and the through holes 154a and 154b of the LED module 150.
- the end portions 117 a and 117 b protrude too much from the mounting substrate 151 of the LED module 150 and become an obstacle.
- the pin terminals 112a and 112b have a bending strength that does not bend even when penetrating through the through holes 144a and 144b of the base 140 and the through holes 154a and 154b of the LED module 150 to play a role as positioning pins.
- bending strength for example, when the pin terminals 112a and 112b are made of nickel, it is preferable to set the outer diameter of the pin terminals 112a and 112b to 0.5 mm or more.
- the case 120 has, for example, a bottomed cylindrical shape having a closed lower end and an open upper end, and has a cylindrical cylindrical portion 121 and a disk-like bottom portion 122 closing the lower end of the cylindrical portion 121. It is made of an insulating material such as resin or ceramic.
- a pair of bulging parts 123a and 123b are formed on the inner peripheral surface 121a of the cylinder part 121 along the cylinder axis X of the case 120 (also the cylinder axis of the cylinder part 121), and the pair of bulging parts
- a pair of rail grooves 124a and 124b opposed to each other are formed along the cylinder axis X in 123a and 123b.
- the lighting unit 110 is fixed in the case 120 by fitting the left and right ends 111a and 111b of the circuit board 111 of the lighting unit 110 into the pair of rail grooves 124a and 124b. Thereby, the pair of pin terminals 112 a and 112 b of the lighting unit 110 are positioned at a predetermined position with respect to the case 120.
- the inside of the case 120 is a simple operation only by sliding the circuit board 111 along the rail grooves 124a and 124b.
- the lighting unit 110 can be positioned at a predetermined position, and the assembly and disassembly of the case 120 and the lighting unit 110 are easy.
- the width of the rail grooves 124 a and 124 b is appropriately adjusted in accordance with the thickness of the circuit board 111.
- the width of the rail grooves 124a and 124b is preferably larger than the thickness of the circuit board 111 by 0.1 to 0.5 mm. If the range is larger than the range, the lighting unit 110 may cause rattling in the case 120. If the range is smaller than the range, it is difficult to fit the left and right ends 111a and 111b of the circuit board 111 in the rail grooves 124a and 124b.
- Three other bulging parts 126a to 126c are provided on the inner circumferential surface 121a of the cylindrical part 121 at equal intervals in the circumferential direction so as to avoid the pair of bulging parts 123a and 123b, Screw insertion holes 128a to 128c are formed on the upper surfaces 127a to 127c of the bulged portions 126a to 126c, respectively.
- the upper surfaces 127a to 127c of the bulging portions 126a to 126c are flush with the upper surface 121b of the cylindrical portion 121, and the bulging portion is in a state where the base 140 is in contact with the upper surface 121b of the cylindrical portion 121. There is no gap between the base 126 and the base 140, and the opening 120a of the case 120 is closed by the base 140.
- the base 130 is a pin base of GU5.3 standardized by JIS C 7709 compatible with a socket for a halogen light bulb, and includes a pair of base pins 131a and 131b.
- the respective cap pins 131 a and 131 b are provided on the bottom portion 122 so as to protrude from the lower surface of the bottom portion 122 of the case 120 to the outside of the case 120.
- the insides of the respective cap pins 131a and 131b are cavities 132a and 132b, and the conductors 113a and 113b of the lighting unit 110 are inserted into the cavities 132a and 132b, and the cap pins 131a and 131b and the conductor 113a are caulked or soldered. , 113 b are electrically connected.
- the base according to the present invention is not limited to the pin base of GU 5.3, and may be a pin base such as GU 10 or an E base such as E26.
- the base 140 has, for example, a bottomed cylindrical shape in which the lower end is closed and the upper end is opened, and the cylindrical cylindrical portion 141 and the disk shape closing the lower end of the cylindrical portion 141 And a bottom portion 142, and made of a heat dissipating material such as metal or ceramic (including glass).
- Retaining claws 143a to 143c are formed on the cylindrical portion 141 at three places at equal intervals in the circumferential direction.
- the respective hooking claws 143a to 143c are formed by bending inward a tongue piece formed by punching out a predetermined portion of the cylindrical portion 141 in a substantially U shape. As shown in FIG. 4, when attaching the cover 170 to the base 140, the hooking claws 143a to 143c are engaged with the claw receiving portion of the cover 170.
- the bottom portion 142 has the LED module 150 mounted on a top surface 142a which is a bottom surface in the cylinder of the base 140, and a pair of through holes 144a and 144b for penetrating the pin terminals 112a and 112b.
- the spacing between the through holes 144a and 144b is the same as the spacing between the pin terminals 112a and 112b.
- three screw insertion holes 145a to 145c for fixing the base 140 to the case 120 are formed.
- the screw insertion holes 145a to 145c of the base 140 communicate with the screw insertion holes 128a to 128c of the case 120, respectively.
- the LED module 150 is a light source of the light source device 100, and includes, for example, a mounting substrate 151, an LED (light emitting element) 152, and a pair of feed terminals 153a and 153b.
- the mounting substrate 151 has, for example, a substantially octagonal plate shape, and has a two-layer structure of an insulating layer made of a ceramic substrate, a heat conductive resin or the like, and a metal layer made of an aluminum plate or the like.
- a wiring pattern (not shown) electrically connected to the LED 152 is formed in the mounting substrate 151, and a pair of penetrations for penetrating the pin terminals 112a and 112b so as to avoid the wiring pattern.
- Holes 154a and 154b and three screw insertion holes 155a to 155c for attaching the LED module 150 to the base 140 are formed.
- the pin terminals 112a and 112b pass through the through holes 154a and 154b, and the screw insertion holes 155a to 155c communicate with the screw insertion holes 145a to 145c of the base 140.
- the spacing between the through holes 154a and 154b is the same as the spacing between the pin terminals 112a and 112b.
- the LED 152 includes, for example, an InGaN-based LED chip that emits blue light and a sealing portion that includes a yellow-green light emitting phosphor that seals the LED chip, and one of the blue lights emitted from the LED chip The color of the part is converted to yellowish green by the phosphor, and white light generated by mixing blue and yellowish green is emitted.
- the LED 152 is mounted on the mounting substrate 151 and electrically connected to the wiring pattern of the mounting substrate 151 via a wire (not shown).
- the pair of feed terminals 153a, 153b is provided at a portion corresponding to the pair of through holes 154a, 154b. Specifically, it is formed between one through hole 154 a and one screw insertion hole 155 a in the upper surface 156 of the mounting substrate 151, and the other feed terminal 153 b is the other through hole 154 b in the upper surface 156 and the other. , And is electrically connected to the LED 152 through the wiring pattern of the mounting substrate 151, respectively.
- each connector 160 includes a conductive member 161 having conductivity for electrically connecting the pin terminal 112a (112b) of the lighting unit 110 and the feed terminal 153a (153b), and the conductive member
- An insulating covering member 162 covering the cover 161 is attached, and is mounted at a position straddling the through hole 154a (154b) and the screw insertion hole 155a (155b) in the upper surface 156 of the mounting substrate 151.
- the conductive member 161 has one end 163 electrically connected to the pin terminal 112a (112b) and the other end 164 electrically connected to the feed terminal 153a (153b).
- One end portion 163 has a pair of plate spring portions 165a and 165b facing each other, and is located above the through hole 154a (154b) of the mounting substrate 151, and a pin is interposed between the plate spring portions 165a and 165b.
- the pin terminal 112a (112b) is held with the spring pressure of the plate spring portions 165a, 165b.
- the other end portion 164 is flat and located on the feed terminal 153a (153b), and is connected to the feed terminal 153a (153b) by soldering or the like.
- the covering member 162 is fixed to the upper surface 156 of the mounting substrate 151 by adhesion or the like so as to cover the conductive member 161, and the plate spring portions 165a and 165b are accommodated at positions corresponding to the through holes 154a (154b).
- the recess 166 of the The mounting substrate 151 also has a screw insertion hole 167 communicating with the screw insertion hole 155a (155b).
- the electrical connection between the lighting unit 110 and the LED module 150 is not limited to that via the connector 160, and may be connected, for example, by soldering.
- the cover 170 is attached to the base 140 so as to cover the LED module 150 and close the opening 140 a of the base 140, and the lens (optical part) 171 and the lens 171 are attached. And an enclosing frame portion 172.
- the lens 171 has, for example, a substantially inverted truncated cone shape made of transparent acrylic resin, and has a substantially cylindrical recess 173 at the center on the lower side, and a state in which a part of the LED 152 is fitted in the recess 173 The lower end portion is in contact with the LED 152.
- the movement of the lens 171 in the direction orthogonal to the cylinder axis X is restricted by fitting a part of the LED 152 into the recess 173 of the lens 171.
- the lens 171 is not limited to the transparent acrylic resin, and may be made of another translucent resin or a translucent material such as glass.
- the light emitted from the LED 152 is taken into the lens 171, collected by the lens 171, and emitted to the outside.
- the LED 152 having a beam angle of 140 ° or less in order to facilitate the collection.
- the frame portion 172 is, for example, a flat circular ring made of a non-light transmitting resin, and is provided with claw receiving portions 174a to 174c at three positions on the periphery at equal intervals in the circumferential direction.
- the frame portion 172 is fixed by engaging the hooking claws 143a to 143c with the claw receiving portions 174a to 174c in a state where the lower surface 175 is in contact with the upper surface 140b of the base 140.
- the frame portion 172 may be attached to the base 140 by a known attachment method such as an adhesive or a screw without using the hooking claws 143a to 143c and the nail receiving portions 174a to 174c.
- the lens 171 is positioned at the central opening 176. Then, the lens 171 is pressed to the base 140 side by pressing the outer peripheral edge 178 of the lens 171 to the LED module 150 side by the inner peripheral edge 177 of the frame 172, and the frame 172 and the base 140 Thus, the lens 171 and the LED module 150 are sandwiched, and the lens 171 in a state in which a part of the LED 152 is fitted into the recess 173 is more difficult to be displaced. With this configuration, the structure can be simpler than in the case where the lens 171 is fixed by separately using a spring member or the like.
- the frame portion 172 has elasticity for pressing the lens 171 toward the base 140.
- the thickness of the frame portion 172 is preferably in the range of 0.3 to 4.0 mm. If it is thinner than the range, the mechanical strength is insufficient, and if it is thicker than the range, the elasticity for pressing may not be sufficient, which is not preferable.
- the frame portion 172 may be formed of a material having good heat dissipation properties, such as metal or ceramic. Thereby, the heat dissipation of the light source device 100 is further improved.
- the frame portion 172 may be formed of a translucent material. Thus, light can be emitted from the entire front surface of the light source device 100.
- the light source device 100 is assembled as follows. As shown in FIG. 3, first, with the lighting unit 110 housed in the case 120, the pair of pin terminals 112 a and 112 b are made to penetrate the pair of through holes 144 a and 144 b of the base 140. Further, the pin terminals 112 a and 112 b are also penetrated through the through holes 154 a and 154 b of the mounting substrate 151 of the LED module 150.
- the other ends 117 a (117 b) of the pin terminals 112 a, 112 b penetrating the through holes 154 a, 154 b of the mounting substrate 151 enter the recess 166 of the connector 160 and are connected to the conductive member 161.
- the pin terminals 112a and 112b are electrically connected to the feed terminals 153a and 153b of the mounting substrate 151, and a feed path from the lighting unit 110 to the LED module 150 is secured.
- the pin terminals 112a and 112b need not necessarily penetrate through the through holes 154a and 154b of the mounting substrate 151, and may be inserted into the through holes 154a and 154b. That is, the other end portions 117a and 117b of the pin terminals 112a and 112b need not necessarily protrude from the upper surface 156 of the mounting substrate 151, and the tip end surfaces of the other end portions 117a and 117b are positioned in the through holes 154a and 154b. It may be in the state of
- the parts of the case 120, the base 140 and the LED module 150 are pin terminals 112a. , 112b are positioned at two points. When each part is positioned at one point, there is a possibility that the part may rotate around the one point and positional deviation may occur, but if the configuration is positioning at two points, such positional deviation may be prevented. it can.
- the screw insertion holes 128a to 128c of the case 120 With the parts of the case 120, the base 140 and the LED module 150 positioned, the screw insertion holes 128a to 128c of the case 120, the screw insertion holes 145a to 145c of the base 140, and the mounting substrate 151 of the LED module 150.
- the screw insertion holes 155a to 155c are in line with and in communication with each other.
- the screw insertion holes 167 of the connector 160 communicating with the screw insertion holes 155a to 155c of the mounting substrate 151 also match.
- the screws 180a to 180c are inserted and screwed into the connected screw insertion holes 128a to 128c, 145a to 145c, 155a to 155c, and 167, a plurality of parts can be screwed at one time, which facilitates assembly. Further, since the parts can be disassembled simply by removing the screws 180a to 180c, the parts can be easily disassembled at the time of recycling or the like.
- the light source device 100 prepares a plurality of types having different positions and positions of the through hole and screw hole but different shapes and sizes for each part, and appropriately selecting them in accordance with the wattage and specifications of the lamp. It is possible to combine them.
- FIG. 6 is a perspective view showing the light source device according to the second embodiment
- FIG. 7 is an exploded perspective view showing the light source device according to the second embodiment.
- the light source device 200 according to the second embodiment is largely different from the light source device 100 according to the first embodiment in that a heat sink 210 is provided.
- the heat sink 210 will be mainly described, and the same points as the first embodiment will not be described in order to avoid duplication.
- the same components as those of the first embodiment are denoted by the same reference numerals.
- the heat sink 210 has a cylindrical cylindrical portion 211 and a disk-shaped end wall 212 closing the upper end of the cylindrical portion 211, and is made of a material with good heat dissipation such as metal or ceramic. Become.
- the heat sink 210 can be manufactured by drawing processing because it has such a simple shape, and can be thinned, so that the light source device 200 can be made lightweight.
- the heat sink 210 may be manufactured by a method other than drawing processing such as die casting.
- the cylindrical portion 211 externally fits the case 120 and covers the entire outer peripheral surface 121 c of the cylindrical portion 121 of the case 120. With such a configuration, the surface area of the cylindrical portion 211 can be increased, and the heat dissipation can be improved. Such a configuration is particularly useful in a light source device for a spotlight, in which a temperature rise due to heat generation of the LED is apt to be a problem because a small size and high brightness LED is used.
- the cylinder part 211 is not limited to the shape which covers the whole outer peripheral surface 121c of the cylinder part 121 of case 120, The shape which covers a part of the said outer peripheral surface 121c may be sufficient.
- the cylindrical portion 211 does not cover the bottom portion 122 of the case 120. Therefore, when inserting the base 130 of the light source device 200 into the socket (not shown) of the lamp, the heat sink 210 does not interfere.
- a gap 201 having a substantially uniform width is provided over the entire circumferential direction of the inner circumferential surface 211a. It is done. Since such a gap 201 is provided, the heat of the heat sink 210 is not easily transmitted to the case 120, and the lighting unit 110 housed in the case 120 is unlikely to be thermally destroyed. Further, since the inner circumferential surface 211a of the cylindrical portion 211 of the heat sink 210 and the outer peripheral surface 121c of the cylindrical portion 121 of the case 120 are exposed to the outside air, the heat dissipation of the heat sink 210 can be further improved.
- the width of the gap 201 is preferably in the range of 0.2 to 7.0 mm. If it is smaller than the range, the effect of heat radiation improvement is hardly obtained, and if larger than the range, the light source device 200 becomes too large, and it becomes difficult to conform to the standard of the halogen bulb.
- the end wall 212 is interposed between the base 140 and the case 120 to close the opening 120a of the case 120, and the through holes 213a and 213b and screw insertion holes 214a to 214c are formed.
- the screw insertion holes 214a to 214c of the heat sink 210 are screw insertion holes 155a to 155c of the case 120 and screw insertion of the base 140.
- they can be integrally fixed to the base 140 by the screws 800a to 800c.
- the light source device 200 has a configuration in which the heat sink 210 is separated from the base 140 and the case 120, the base 140 and the case 120 are commonly used for a plurality of types of light source devices 200 having different wattage.
- the shape and size of the heat sink 210 can be changed according to the size of the wattage, cost reduction can be achieved by commonality of members, etc., and product development can be facilitated.
- the light source device 200 may have a configuration in which one or more heat sinks are further added.
- FIG. 8 is an exploded perspective view showing a light source device according to a modification of the second embodiment.
- FIG. 9 is a schematic view for explaining a modification of the second embodiment.
- a single heat dissipating plate 220 made of a material having a good heat dissipating property such as metal or ceramic is disposed between the base 140 and the heat sink 210.
- the heat dissipation plate 220 has a disk shape, and the peripheral edge portion 221 protrudes outward beyond the outer peripheral surface 211 b of the cylindrical portion 211, and the central region of the upper surface is in surface contact with the lower surface of the base 140. The central region of the surface contact with the top surface of the heat sink 210.
- the heat sink 220 is added, the heat capacity and the surface area will be increased accordingly, and the heat dissipation will be improved. Furthermore, the peripheral portion 221 of the heat dissipation plate 220 protrudes outward beyond the outer peripheral surface 211 b of the cylindrical portion 211, so that the surface of the heat dissipation plate 220 comes in contact with the outside air in a larger area. Improve more.
- the heat dissipation plate 220 has a pair of through holes 222a and 222b for penetrating the pin terminals 112a and 112b, and the pair of pin terminals 112a and 112b in the pair of through holes 222a and 222b. And screw insertion holes 223a to 223c in communication with the screw insertion holes 214a to 214c. Therefore, assembly of the light source device 200 is easy.
- each of the heat sinks 230 and 240 has, for example, the same shape as the heat sink 220 of the first modification, and the heat sink 230 on the base 140 side is made of high thermal conductivity material such as graphite, and the heat sink 220 on the heat sink 210 is It is made of high heat radiation material such as ceramic.
- the central region of the upper surface of the heat sink 230 is in surface contact with the lower surface of the base 140, and the entire lower surface is in surface contact with the entire upper surface of the heat sink 240.
- the central region of the lower surface of the heat sink 240 is the heat sink 210. In surface contact with the top surface of the
- the heat generated by the LED module 150 can be efficiently transferred to the heat sink 240 by the heat sink 230, and the heat can be efficiently dissipated by the heat sink 240. Sex improves more.
- the heat sink 250 is further added between the base 140 and the heat sink 230.
- the heat sink 250 has, for example, the same shape as the heat sink 220 of the first modification, and the central region of the upper surface is in surface contact with the lower surface of the base 140, and the entire lower surface is in surface contact with the entire upper surface of the heat sink 230. And made of high heat radiation material such as ceramic.
- the heat generated by the LED module 150 can be efficiently transferred to the heat sink 240 and the heat sink 250 by the heat sink 230, and the heat can be efficiently transmitted by the heat sink 240 and the heat sink 250.
- the heat radiation can be further improved.
- an annular plate shaped heat dissipation plate 260 having an opening 261 at the center is disposed.
- the heat sink 260 is externally fitted to the base 140 so that the lower end portion 140b of the base 140 is fitted into the opening 261, and the entire lower surface is in surface contact with the upper surface of the heat sink 230. It consists of
- the contact area between the base 140 and the heat dissipation plate 230 is larger than in the case of the third modification, so the heat generated by the LED module 150 is efficiently conducted to the heat dissipation plate 230 and the heat dissipation is improved. Further improve.
- the heat dissipation is appropriately adjusted by changing the number, size, shape, material, etc. of the heat sinks 220, 230, 240, 250, 260, and wattage and It is possible to cope with a plurality of types of light source devices having different amounts of heat generation.
- the case 120, the base 140, and the heat sink 210 can be used in common, replacing the heat sink 220, 230, 240, 250, 260 prevents the cost of the mold from being increased due to common parts. While being able to achieve cost reduction, simplification of breed development etc. can be achieved.
- FIG. 10 is a schematic view for explaining a modification of the second embodiment.
- the heat sink according to the present invention is not limited to the shape of the type in which the case 120 is accommodated inside as in the heat sink 210 shown in FIG. 8, and for example, as in the heat sink 270 shown in FIG.
- the cover 170 may be of a type configured to be accommodated inside.
- the heat sink 270 has a bowl shape having a cylindrical cylindrical portion 271 whose diameter increases upward and a disk-shaped end wall 272 closing the lower end of the cylindrical portion 271. It consists of a good material.
- the opening 273 of the heat sink 270 may be further covered by a member such as a cover.
- the heat sink according to the present invention may be configured as shown in FIG. 10 (b) including both the heat sink 210 shown in FIG. 8 and the heat sink 270 shown in FIG. 10 (a).
- FIG. 11 is a cross-sectional view showing a light source device according to a third embodiment.
- the light source device 300 according to the embodiment of the present invention is an alternative to a halogen bulb, and has an external shape conforming to the standard of the halogen bulb.
- the lighting unit 310 includes a circuit board 311, a pair of pin terminals 312a and 312b, and a pair of conducting wires 313a and 313b.
- the pin terminals 312 a and 312 b not only serve as feed terminals for supplying power to the LED module 350, but also serve as positioning pins for positioning the base 340 and the LED module 350 relative to the case 320.
- the base 340 and the LED module 350 are respectively formed in the case 320 by penetrating the pin terminals 312a and 312b in the through holes 344a and 344b of the base 340 and the through holes 354a and 354b of the LED module 350.
- the case 320 is, for example, in the form of a cylinder whose upper and lower ends are open, and has screw insertion holes 328a and 328b.
- the base 330 is a screw-type base compatible with a socket for a halogen light bulb, and the lead wires 313a and 313b of the lighting unit 310 are connected to the distal end portion 331 and the screw forming portion 332 of the base 330, respectively. Receives AC power input from a commercial power supply at point contacts.
- the base 330 is attached to the case 320 by a known method such as caulking or an adhesive.
- E11, EZ10, GU5.3, GU10 etc. can be considered as the nozzle
- the base 140 has, for example, a bowl shape, and the LED module 350 is mounted on the top surface of the bottom portion 342 which is the bottom surface of the bowl, and a pair of through holes 344 a and 344 b are formed in the bottom portion 342.
- the distance between the through holes 344a and 344b is the same as the distance between the pin terminals 312a and 312b.
- two screw insertion holes 345a and 345b for fixing the base 340 to the case 320 are formed.
- the screw insertion holes 345 a and 345 b of the base 340 communicate with the screw insertion holes 328 a and 328 b of the case 320, respectively.
- the LED module 350 is a light source of the light source device 300, and includes, for example, a mounting substrate 351, an LED (light emitting element) 352, and a pair of feed terminals 353a and 353b.
- the mounting substrate 351 is formed with a pair of through holes 354a and 354b for penetrating the pin terminals 312a and 312b, and two screw insertion holes 355a and 355b for attaching the LED module 350 to the base 340. .
- the pin terminals 312a and 312b pass through the through holes 354a and 354b, and the screw insertion holes 355a and 355b communicate with the screw insertion holes 345a and 345b of the base 340.
- the distance between the through holes 354a and 354b is the same as the distance between the pin terminals 312a and 312b.
- the pair of feed terminals 353a and 353b and the pair of pin terminals 312a and 312b are electrically connected by solders 357a and 357b.
- the cover 370 is made of, for example, a material having a light transmitting property and a light diffusing property, and a circle extending outward from the outer peripheral surface of the lens portion 371 having a substantially inverted truncated cone shape and the lens portion (optical portion) 371.
- An annular plate-like frame portion 372 is provided, and the upper surface of the lens portion 371 and the upper surface of the frame portion 372 are flush with each other.
- the cover 370 covers the LED module 350 and closes the opening 340 a of the base 340 so that the lower surface 375 of the frame 372 is in contact with the base 340.
- the entire cover 370 is made of a translucent material, light is emitted from the entire front surface. Therefore, the appearance image at the time of light emission of a halogen light bulb or an incandescent light bulb can be maintained. Further, leaked light (about 10% of the light emission amount) not incident on the lens portion 371 is also transmitted through the frame portion 372 and emitted to the outside, so that the irradiation amount can be increased. Furthermore, since the cover 370 is formed of a light diffusive material, output light can be diffused by the cover 370 to obtain a light distribution pattern close to an incandescent lamp.
- FIG. 12 is a cross-sectional view showing a light source device according to the fourth embodiment.
- FIG. 13 is a perspective view showing a cover according to the fourth embodiment.
- the light source device 400 according to the fourth embodiment is largely different from the light source device 300 according to the third embodiment in that three LED 452 a to 452 c and three lens portions 471 a to 471 c are provided. It is different.
- the LED module 450 and the cover 470 will be mainly described, and the same points as the third embodiment will not be described in order to avoid duplication.
- the same components as those in the third embodiment are given the same reference numerals.
- the LED module 450 is a light source of the light source device 400, and includes, for example, a mounting substrate 451, LEDs 452a to 452c, and a pair of feed terminals 453a and 453b.
- the mounting substrate 451 is formed with a pair of through holes 454a and 454b for penetrating the pin terminals 312a and 312b, and two screw insertion holes 455a and 455b for attaching the LED module 450 to the base 340. .
- the cover 470 is made of, for example, a light transmitting and light diffusing material, and integrally includes three substantially inverted truncated conical lens portions 471 a to 471 c and the lens portions 471 a to 471 c. And a plate-like frame portion 472 to be connected.
- the cover 470 covers the LED module 450 and closes the opening 340 a of the base 340 so that the lower surface 475 of the frame 472 is in contact with the base 340.
- the number of the LEDs 452a to 452c may be plural, and the number of the lens portions 471a to 471c may be plural depending on the number of the LEDs 452a to 452c.
- the lens portions 471a to 471c By providing the lens portions 471a to 471c to the plurality of LEDs 452a to 452c, light of the LEDs 452a to 452c can be condensed more efficiently.
- the electrical connection between the light emitting module and the lighting unit, and the positioning of the light emitting module and the case with respect to the base are not limited to the case using pin terminals of the lighting unit.
- FIG. 14 is a view for explaining the connector of the light source device according to the fifth embodiment, wherein (a) is a perspective view showing a state of attachment to the light emitting module, and (b) is a view with the lighting unit It is a schematic diagram for demonstrating an engagement state.
- the light source device according to the fifth embodiment is significantly different from the light source device 100 according to the first embodiment in the configuration of the connector 560.
- the same points as the first embodiment will not be described in order to avoid duplication.
- the lighting unit 510 has a circuit board 511, and on the circuit board 511, a pair of electrodes 512 (only one is shown in the drawing) is formed in the vicinity of the upper end edge with an interval.
- the base 540 has a pair of substantially square through holes 544 (only one is shown in the figure).
- the LED module 550 includes a mounting substrate 551, an LED 552, and a pair of feed terminals 553a and 553b.
- the mounting substrate 551 is formed with a pair of substantially square through holes 554 (only one is shown in the figure).
- the connector 560 has a substantially prismatic shape, and is attached to the mounting substrate 551 in a state of penetrating the through hole 554 of the mounting substrate 551.
- the connector 560 has one end 561 protruding from the upper surface of the mounting substrate 551 wider than the through hole 554 of the mounting substrate 551 so that the connector 560 does not fall downward from the through hole 554. There is.
- the one end 561 is electrically connected to the power supply terminal 553 of the LED module 550.
- the connector 560 is engaged with the lighting unit 510 at the other end (tip end) 562 that protrudes to the side opposite to the LED 552. Specifically, with the connector 560 penetrating through the through hole 554 of the base 540, the upper edge portion of the circuit board 511 is engaged with and engaged in the slit groove 563 formed at the other end 562 . When the other end 562 of the connector 560 is engaged with the lighting unit 510, the inner surface of the slit groove 563 of the other end 562 contacts the electrode 512, and the LED module 550 and the lighting unit 510 Electrical connection is made via connector 560.
- An insulating wall 564 is provided on the mounting substrate 551 so as to surround one end 561 of the connector 560.
- the other end 562 of the connector 560 attached to the LED module 550 is penetrated through the through hole 544 of the base 540, and the circuit board 511 of the lighting unit 510 is further inserted in the slit groove 563 of the other end 562. Only by fitting, the LED module 550 and the lighting unit 510 are electrically connected, and the base 540, the LED module 550, and the case fixed to the lighting unit 510 are positioned. .
- FIG. 15 is a view showing a light source device according to a sixth embodiment, wherein (a) is a perspective view and (b) is an exploded perspective view.
- FIG. 16 is a figure for demonstrating the attachment aspect of a cover, Comprising: (a) shows the state before attachment, (b) shows the state after attachment.
- the light source device 600 according to the sixth embodiment shown in FIG. 15 is largely different from the light source device according to the fifth embodiment in the attachment aspect of the cover 670. In the following, only differences will be described, and the same points as the fifth embodiment will not be described in order to avoid duplication.
- the light source device 600 includes a lighting unit (not shown), a case (not shown), a heat sink 610, a base 630 having a pair of base pins 631a and 631b, a base 640, an LED module 650, a pair of connectors 660 and a cover 670. .
- the cover 670 includes a lens portion 671, a frame portion 672 and an O-ring 679, and the frame portion 672 is provided with a hook 674 at the outer peripheral edge portion.
- the hooking claws 674 project downward from the lower surface 675 of the frame portion 672, and eight are provided at equal intervals along the circumferential direction.
- the LED module 650 is attached to the base 640, the lens portion 671 is fitted on the LED module 650, and a part of the LED 652 is fitted in the recess 673. Place in a clumped state.
- the frame portion 672 is disposed such that the lens portion 671 fits in the opening 676, and the opening of the base 640 is performed while pressing the outer peripheral portion 678 of the lens portion 671 with the inner peripheral portion 677 of the frame 672
- the frame 672 is attached to the base 640 by hooking the hook 674 to the peripheral edge 641.
- the opening peripheral edge 641 of the base 640 protrudes outward in order to cause the hook 674 to be hooked.
- the upper surface side 642 of the opening peripheral edge portion 641 of the base 640 is R-shaped, and when the hooking claw 674 of the frame portion 672 is hooked to the opening peripheral edge portion 641, the hooking claw 674 smoothly performs the engagement. It enters into the lower side of the opening peripheral portion 641. With this configuration, when attaching the cover 670, the hook 674 is less likely to be broken.
- a rubber O-ring 679 is disposed between the base 640 and the frame portion 672, for example.
- the height level L1 of the upper end thereof is higher than the height level L2 of the upper surface of the outer peripheral edge portion 678 of the lens portion 671 before the frame portion 672 is attached.
- the height level L1 is lower than the height level L2. That is, the O-ring 679 is flattened by being pressed against the lower surface 675 of the frame portion 672.
- the light emitting device is not limited to the LED, and may be a semiconductor laser diode or an electroluminescent device.
- the light emission color of the light emitting element is not limited to white, and any light emission color can be adopted.
- the base may be made of a translucent material. In that case, the light of the light emitting module leaks to the side through the base and the illumination range of the light source device can be expanded.
- the ceramic which has translucency, such as glass can be considered. Such a configuration is particularly effective when the light source device is not used for a spotlight, and in that case, it is more preferable to make the base of a light diffusing material. And, it is particularly effective in combination with a cover having transparency and light diffusion.
- the optical part of the cover is a lens
- the irradiation amount can be increased by providing a reflection film so that the surface of the lens is a mirror surface facing inward.
- the optical part of the cover may be a Fresnel lens or a reflecting mirror.
- the cover may have a configuration without an optical unit, and the light source device may have a configuration without a cover.
- the light source device may be configured by combining some of the configurations according to the first to sixth embodiments and their modifications.
- the light source device according to the present invention can be widely used for lighting applications in general.
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- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
Description
(全体構成)
図1は、第1の実施形態に係る光源装置を示す斜視図である。図2から図4は、第1の実施形態に係る光源装置の組み立て手順を説明するための分解斜視図である。
点灯ユニット110は、例えば、商業電源から供給された交流電力を直流電力に整流する整流回路、および、当該整流回路により整流された直流電力の電圧値を調整する電圧調整回路などからなる点灯回路を含み、商業電源を利用してLEDモジュール150を発光させる。
ケース120は、例えば、下端が閉塞され上端が開口した有底筒状であって、円筒状の筒部121と、当該筒部121の下端を閉塞する円板状の底部122とを有し、樹脂やセラミックなどの絶縁性の材料からなる。
口金130は、ハロゲン電球用のソケットに適合可能なJIS C 7709で規格されるGU5.3のピン口金であり、一対の口金ピン131a,131bで構成されている。各口金ピン131a,131bは、ケース120の底部122の下面からケース120の外側に突出するように、前記底部122に突設されている。各口金ピン131a,131bの内部は空洞132a,132bになっており、その空洞132a,132bに点灯ユニット110の導線113a,113bが挿入され、かしめや半田付けなどによって口金ピン131a,131bと導線113a,113bとが電気的に接続されている。なお、本発明に係る口金は、GU5.3のピン口金に限定されず、GU10などのピン口金や、E26などのE口金であってもよい。
図3に示すように、基台140は、例えば、下端が閉塞され上端が開口した有底筒状であって、円筒状の筒部141と、当該筒部141の下端を閉塞する円板状の底部142とを有し、金属やセラミック(ガラスを含む)など放熱性の良い材料からなる。
LEDモジュール150は、光源装置100の光源であって、例えば、実装基板151、LED(発光素子)152および一対の給電端子153a,153bを有する。
当該実装基板151には、LED152と電気的に接続される配線パターン(不図示)が形成されているとともに、前記配線パターンを避けるようにして、ピン端子112a,112bを貫通させるための一対の貫通孔154a,154b、および、LEDモジュール150を基台140に取り付けるための3つのねじ挿入孔155a~155cが形成されている。
一対のコネクタ160は、点灯ユニット110とLEDモジュール150とを電気的に接続している。図5は、コネクタの内部構造を説明するための断面図である。図5に示すように、各コネクタ160は、点灯ユニット110のピン端子112a(112b)と給電端子153a(153b)とを電気的に接続するための導電性を有する導電部材161と、当該導電部材161を覆う絶縁性の被覆部材162とを備え、前記実装基板151の上面156における貫通孔154a(154b)とねじ挿入孔155a(155b)とを跨ぐ位置に取り付けられている。
図4に示すように、カバー170は、LEDモジュール150を覆い、基台140の開口140aを塞ぐようにして、基台140に取り付けられており、レンズ(光学部)171と、当該レンズ171を外囲する枠部172とを有する。
以上のように説明した第1の実施形態に係る光源装置100は、以下のようにして組み立てられる。図3に示すように、まず、点灯ユニット110をケース120に収容した状態で、基台140の一対の貫通孔144a,144bに一対のピン端子112a,112bを貫通させる。さらにピン端子112a,112bをLEDモジュール150の実装基板151の貫通孔154a,154bにも貫通させる。すると、実装基板151の貫通孔154a,154bを貫通したピン端子112a,112bの他端部117a(117b)がコネクタ160の凹所166内に入り込み導電部材161と接続される。これによりピン端子112a,112bと実装基板151の給電端子153a,153bとが電気的に接続され、点灯ユニット110からLEDモジュール150への給電路が確保される。
図6は、第2の実施形態に係る光源装置を示す斜視図であり、図7は、第2の実施形態に係る光源装置を示す分解斜視図である。図6および図7に示すように、第2の実施形態に係る光源装置200は、ヒートシンク210を備えている点において、第1の実施形態に係る光源装置100とは大きく相違する。以下では、特にヒートシンク210について重点的に説明し、第1の実施形態と同様の点ついては重複を避けるため説明を省略する。なお、第1の実施形態と同じ構成要素については同符号を付する。
図7に示すように、ヒートシンク210は、円筒状の筒部211と、当該筒部211の上端を閉塞する円板状の端壁212とを有し、金属やセラミックなど放熱性の良い材料からなる。当該ヒートシンク210は、このようなシンプルな形状であるため絞り加工で作製することが可能であり、薄型化が可能であるため、光源装置200を軽量にすることができる。なお、ヒートシンク210は、ダイキャストなど絞り加工以外の方法で作製してもよい。
光源装置200は、ヒートシンク210に加えて、さらに1又は複数の放熱板を追加した構成であってもよい。図8は、第2の実施形態の変形例に係る光源装置を示す分解斜視図である。図9は、第2の実施形態の変形例を説明するための模式図である。
図11は、第3の実施形態に係る光源装置を示す断面図である。図11に示すように、本発明に実施形態に係る光源装置300は、ハロゲン電球の代替品であって、ハロゲン電球の規格に準じた外観形状を有し、点灯ユニット310、ケース320、口金330、基台340、LEDモジュール(発光モジュール)350およびカバー370を備える。
図12は、第4の実施形態に係る光源装置を示す断面図である。図13は、第4の実施形態に係るカバーを示す斜視図である。図12に示すように、第4の実施形態に係る光源装置400は、3つのLED452a~452cと3つのレンズ部471a~471cを備える点において、第3の実施形態に係る光源装置300とは大きく相違する。以下では、LEDモジュール450およびカバー470について重点的に説明し、第3の実施形態と同様の点ついては重複を避けるため説明を省略する。なお、第3の実施形態と同じ構成要素については同符号を付する。
本発明に係る光源装置に関して、発光モジュールと点灯ユニットとの電気的な接続、並びに、基台に対する発光モジュールおよびケースの位置決めは、点灯ユニットのピン端子を利用して行う場合に限定されない。
図15は、第6の実施形態に係る光源装置を示す図であり、(a)は斜視図、(b)は分解斜視図である。図16は、カバーの取り付け態様を説明するための図であって、(a)は取り付け前の状態を示し、(b)は取り付け後の状態を示す。
以上、本発明に係る光源装置を実施の形態に基づいて具体的に説明してきたが、本発明に係る光源装置は、上記の実施の形態に限定されない。例えば、以下のような変形例が考えられる。
本発明に係る発光素子は、LEDに限定されず、半導体レーザーダイオードや電界発光素子などであっても良い。また、発光素子の発光色は白色に限定されず、任意の発光色を採用することが可能である。
基台は、透光性の材料で作製されていてもよい。その場合は、基台を透過して側方へも発光モジュールの光が漏れることになるため、光源装置の照明範囲を広げることができる。なお、透光性の材料としてはガラスなどの透光性を有するセラミックが考えられる。このような構成は、光源装置をスポットライト用として使用しない場合に特に有効であり、その場合は基台を光拡散性の材料で作製することがさらに好ましい。そして、透過性および光拡散性を有するカバーとの組み合わせにおいて特に有効である。
カバーの光学部がレンズである場合、当該レンズの表面に光を反射させる反射膜を設けることが好ましい。反射膜を設けてレンズの表面を内側に向けた鏡面とすることにより照射量を増大させることができる。また、カバーの光学部は、フレネルレンズや反射鏡であってもよい。さらに、カバーが光学部を有さない構成であってもよく、光源装置がカバーを有さない構成であってもよい。
本発明に係る光源装置は、第1~第6の実施の形態およびそれらの変形例に係る構成の一部を組み合わせた構成であってもよい。
110 点灯ユニット
111a,111b 一対の端縁部
112a,112b ピン端子
120 ケース
121a 内面
121c 外周面
124a,124b レール溝
130 口金
131a,131b 口金ピン
140 基台
142 端壁
144a,144b 貫通孔
145a~145c ねじ挿入孔
150 発光モジュール
151 実装基板
152 発光素子
153a,153b 給電端子
154a,154b 貫通孔
155a,155b ねじ挿入孔
170 カバー
171 光学部
172 枠部
177 内周縁部分
178 外周縁部分
201 隙間
210 ヒートシンク
211a 内周面
211b 外周面
212 端壁
220,230,240,250,260 放熱板
221 周縁部
674 掛止爪
641 開口周縁部
642 上面
800a~800c ねじ
Claims (24)
- 実装基板に発光素子を実装してなる発光モジュールと、当該発光モジュールが載置された基台と、前記発光モジュールを点灯させる点灯ユニットと、前記基台の発光モジュールとは反対側に配置され前記点灯ユニットを内部に収容したケースとを備える光源装置であって、
前記点灯ユニットは一対のピン端子を有し、前記基台および実装基板にはそれぞれ一対の貫通孔が形成されているとともに、前記実装基板には前記一対の貫通孔に対応する部位に一対の給電端子が設けられ、前記一対のピン端子は、前記基台および実装基板の一対の貫通孔を貫通した状態で、前記一対の給電端子とそれぞれ電気的に接続されていることを特徴とする光源装置。 - 前記ケース、基台および実装基板は、前記一対のピン端子を前記基台および実装基板の一対の貫通孔に貫通させた状態で互いにねじによって一体に固定されていることを特徴とする請求項1記載の光源装置。
- 前記ケース、基台および実装基板には、前記一対のピン端子を前記基台および実装基板の一対の貫通孔に貫通させた状態で互いに連通するねじ挿入孔がそれぞれ形成されていることを特徴とする請求項2記載の光源装置。
- さらに、前記基台に取り付けられるヒートシンクを備え、当該ヒートシンクには、前記一対のピン端子を貫通させるための一対の貫通孔が形成されていることを特徴とする請求項2記載の光源装置。
- 前記ヒートシンクには、当該ヒートシンクの一対の貫通孔に前記一対のピン端子を貫通させた状態において前記実装基板、基台およびケースのねじ挿入孔と連通するねじ挿入孔が形成されていることを特徴とする請求項4記載の光源装置。
- 前記ヒートシンクは、一端が開口し他端が閉塞した筒状であって、前記他端を閉塞する端壁が前記基台と前記ケースとの間に配置される姿勢で前記ケースに外嵌されており、前記端壁に前記一対の貫通孔およびねじ挿入孔が形成されていることを特徴とする請求項4または5に記載の光源装置。
- 前記ケースは筒状であって、前記ケースの外周面と前記ヒートシンクの内周面との間には隙間が設けられていることを特徴とする請求項6記載の光源装置。
- さらに、前記基台と前記ヒートシンクとの間に介在する1又は複数の放熱板を備え、当該放熱板には、前記一対のピン端子を貫通させるための一対の貫通孔が形成されていることを特徴とする請求項4から7のいずれかに記載の光源装置。
- さらに、前記発光モジュールを覆うカバーを備えることを特徴とする請求項1から8のいずれかに記載の光源装置。
- 前記カバーは、前記発光素子の光を集光させるための光学部を有することを特徴とする請求項9記載の光源装置。
- 前記カバーは、前記基台に固定される環状の枠部を有し、当該枠部の内周縁部分で前記光学部の外周縁部分を前記発光モジュール側に押圧し、前記光学部を前記発光モジュールまたは基台に押し当てて、前記光学部の移動を規制していることを特徴とする請求項10記載の光源装置。
- 前記枠部は、透光性および光拡散性の材料からなることを特徴とする請求項11記載の光源装置。
- 前記枠部はセラミック製または樹脂製であることを特徴とする請求項11または12に記載の光源装置。
- 前記基台は、一端が開口し他端が閉塞した有底筒状であって、筒内底面には前記発光モジュールが載置されていることを特徴とする請求項1から13のいずれかに記載の光源装置。
- さらに、前記発光モジュールを覆うようにして前記基台に取り付けられるカバーを備え、当該カバーは前記基台への取り付け用の掛止爪を有し、
前記基台は、一端が開口し他端が閉塞した有底筒状であって、筒内底面には前記発光モジュールが載置されており、開口周縁部は外側に張り出すとともに上面がR形状となっており、当該開口周縁部に前記掛止爪が掛止されていることを特徴とする請求項1から8記載の光源装置。 - さらに、前記ケースに取り付けられた口金を備えることを特徴とする請求項1から15のいずれかに記載の光源装置。
- 前記口金は、前記ケースから前記発光モジュールとは反対側に突出する口金ピンであって、前記ケースが絶縁性の材料で形成されていることを特徴とする請求項16記載の光源装置。
- 前記ケースの内面には、互いに対向する一対のレール溝が形成されており、
前記点灯ユニットは、回路基板を有し、当該基板の互いに対向する一対の端縁部を前記一対のレール溝内に嵌め込んだ状態で前記ケース内に収容されていることを特徴とする請求項1から17のいずれかに記載の光源装置。 - 実装基板に発光素子を実装してなる発光モジュールと、当該発光モジュールが載置された基台と、前記発光モジュールを点灯させる点灯ユニットと、前記基台の発光モジュールとは反対側に配置され前記点灯ユニットを内部に収容したケースとを備える光源装置であって、
前記発光モジュールには前記実装基板から前記発光素子とは反対側に突出する一対のコネクタが取り付けられ、前記基台には一対の貫通孔が形成されているとともに、前記一対のコネクタには前記点灯ユニットと係合する係合部が設けられ、前記一対のコネクタが前記一対の貫通孔を貫通した状態で前記点灯ユニットと係合され、前記発光モジュールと前記点灯ユニットとが電気的に接続されていることを特徴とする光源装置。 - さらに、前記発光モジュールを覆うようにして前記基台に取り付けられるカバーを備え、当該カバーは前記基台への取り付け用の掛止爪を有し、
前記基台は、一端が開口し他端が閉塞した有底筒状であって、筒内底面には前記発光モジュールが載置されており、開口周縁部は外側に張り出すとともに上面がR形状となっており、当該開口周縁部に前記掛止爪が掛止されていることを特徴とする請求項19記載の光源装置。 - 前記カバーは、前記発光素子の光を集光させるための光学部を有することを特徴とする請求項20記載の光源装置。
- 前記カバーは、前記基台に固定される環状の枠部を有し、当該枠部の内周縁部分で前記光学部の外周縁部分を前記発光モジュール側に押圧し、前記光学部を前記発光モジュールまたは基台に押し当てて、前記光学部の移動を規制していることを特徴とする請求項21記載の光源装置。
- 前記枠部は、透光性および光拡散性の材料からなることを特徴とする請求項22記載の光源装置。
- 前記枠部はセラミック製または樹脂製であることを特徴とする請求項22または23に記載の光源装置。
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- 2011-02-22 EP EP11747021.1A patent/EP2541121A4/en not_active Withdrawn
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EP2589862A1 (en) * | 2011-11-02 | 2013-05-08 | Lextar Electronics Corp. | Illumination structure and assembly method of light base and cover |
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JP2013243101A (ja) * | 2011-11-18 | 2013-12-05 | Iwasaki Electric Co Ltd | 発光素子モジュール、及び照明器具 |
CN103917824A (zh) * | 2011-12-07 | 2014-07-09 | 株式会社神户制钢所 | Led照明用散热片及其制造方法 |
WO2013085024A1 (ja) * | 2011-12-07 | 2013-06-13 | 株式会社神戸製鋼所 | Led照明用ヒートシンク及びその製造方法 |
JP2013120688A (ja) * | 2011-12-07 | 2013-06-17 | Kobe Steel Ltd | Led照明用ヒートシンク |
CN103196042A (zh) * | 2012-01-10 | 2013-07-10 | 欧司朗股份有限公司 | 照明装置及其制造方法 |
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CN103196042B (zh) * | 2012-01-10 | 2016-08-24 | 欧司朗股份有限公司 | 照明装置及其制造方法 |
US9488356B2 (en) | 2012-01-10 | 2016-11-08 | Osram Gmbh | Illuminating device and manufacturing method thereof |
JP2014194952A (ja) * | 2012-03-20 | 2014-10-09 | Lg Innotek Co Ltd | 照明装置及びこれを含む照明制御システム |
US9810414B2 (en) | 2012-03-20 | 2017-11-07 | Lg Innotek Co., Ltd. | Lighting apparatus and lighting control system |
JPWO2014115443A1 (ja) * | 2013-01-24 | 2017-01-26 | シャープ株式会社 | 発光装置およびその製造方法 |
JP2014157704A (ja) * | 2013-02-15 | 2014-08-28 | Nec Lighting Ltd | 発光装置 |
JP2014238991A (ja) * | 2013-06-07 | 2014-12-18 | コイズミ照明株式会社 | 容器形状成形体及びこれを用いた照明器具 |
JP2015185390A (ja) * | 2014-03-24 | 2015-10-22 | 東芝ライテック株式会社 | ランプ装置および照明器具 |
CN104633618A (zh) * | 2015-01-30 | 2015-05-20 | 木林森股份有限公司 | 一种led灯板和电源板的电连接结构、装配方法和灯具 |
CN104633618B (zh) * | 2015-01-30 | 2018-09-18 | 木林森股份有限公司 | 一种led灯板和电源板的电连接结构、装配方法和灯具 |
JP2019220491A (ja) * | 2015-02-23 | 2019-12-26 | パナソニックIpマネジメント株式会社 | 照明用光源及び照明装置 |
JP2019021577A (ja) * | 2017-07-20 | 2019-02-07 | パナソニックIpマネジメント株式会社 | 光源ユニット及び照明器具 |
CN109386814A (zh) * | 2017-08-09 | 2019-02-26 | 欧司朗股份有限公司 | 发光模块和前照灯 |
JP2020009700A (ja) * | 2018-07-11 | 2020-01-16 | アイリスオーヤマ株式会社 | 照明装置 |
JP7190727B2 (ja) | 2018-07-11 | 2022-12-16 | アイリスオーヤマ株式会社 | 照明装置 |
JP7508133B2 (ja) | 2022-11-29 | 2024-07-01 | アイリスオーヤマ株式会社 | 照明装置 |
Also Published As
Publication number | Publication date |
---|---|
US20120147608A1 (en) | 2012-06-14 |
CN102483200A (zh) | 2012-05-30 |
JP4902818B1 (ja) | 2012-03-21 |
EP2541121A1 (en) | 2013-01-02 |
US8523411B2 (en) | 2013-09-03 |
EP2541121A4 (en) | 2013-10-23 |
JPWO2011105049A1 (ja) | 2013-06-20 |
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