WO2013128732A1 - Dispositif électroluminescent et appareil d'éclairage utilisant celui-ci - Google Patents

Dispositif électroluminescent et appareil d'éclairage utilisant celui-ci Download PDF

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Publication number
WO2013128732A1
WO2013128732A1 PCT/JP2012/080682 JP2012080682W WO2013128732A1 WO 2013128732 A1 WO2013128732 A1 WO 2013128732A1 JP 2012080682 W JP2012080682 W JP 2012080682W WO 2013128732 A1 WO2013128732 A1 WO 2013128732A1
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WO
WIPO (PCT)
Prior art keywords
light emitting
emitting device
lens
light
mounting substrate
Prior art date
Application number
PCT/JP2012/080682
Other languages
English (en)
Japanese (ja)
Inventor
博司 海路
Original Assignee
パナソニック株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パナソニック株式会社 filed Critical パナソニック株式会社
Publication of WO2013128732A1 publication Critical patent/WO2013128732A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/08—Lighting devices intended for fixed installation with a standard
    • F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/08—Lighting devices intended for fixed installation with a standard
    • 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
    • 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F21V21/30—Pivoted housings or frames
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/103—Outdoor lighting of streets or roads
    • 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 emitting device and a lighting fixture using the same.
  • Document 1 describes a lighting unit that can be used outdoors.
  • the illumination unit includes a substrate on which a plurality of light emitting elements are disposed, an optical member disposed on one surface side of the substrate, and a heat dissipation case that forms a housing together with the optical member disposed on the other surface side of the substrate And a member.
  • Document 1 describes that it is preferable to use a material having high thermal conductivity as the material of the substrate.
  • the optical member is provided so as to cover the light emitting element disposed on the substrate.
  • Document 2 describes an LED lamp 81 having the configuration shown in FIG. 15 as an example of an illumination device used indoors and outdoors.
  • the LED lamp 81 includes a lamp body 82, a globe 83, an E-type base 84, a lighting device 85, and a COB (chip-on-board) type light-emitting device 86.
  • the lamp body 82 is made of a metal material and has a function as a heat radiating member.
  • a light emitting device 86 is attached to the support surface 82 a of the lamp body 82.
  • the light emitting device 86 includes a rectangular substrate 88 (see FIG. 16).
  • the substrate 88 is made of a white ceramic material and has electrical insulation.
  • the substrate 88 has a mounting region 88a in which a wiring pattern (not shown) is formed at the center of one surface side (the upper surface side in FIG. 16).
  • a plurality of light emitting diode chips 89 are arranged in the mounting region 88a.
  • Document 2 describes that the positive electrode and the negative electrode of each light-emitting diode chip 89 are electrically connected to the wiring pattern via bonding wires (not shown). .
  • Document 2 describes that the wiring pattern and each light emitting diode chip 89 are covered with a sealing material 90.
  • a pair of pressing members 91 and 92 are attached to the support surface 82 a of the lamp body 82 by screws 93.
  • Each of the pressing members 91 and 92 is configured by a leaf spring obtained by bending a stainless steel plate in a step shape.
  • Each of the pressing members 91 and 92 has fixing portions 91a and 92a, standing portions 91b and 92b, and pressing portions 91c and 92c (see FIG. 16).
  • Document 2 describes that each of the pressing portions 91c and 92c of the pressing members 91 and 92 is disposed on a peripheral portion of the substrate 88 (a portion other than the mounting region 88a).
  • Document 2 describes that each of the pressing portions 91 c and 92 c of the pressing members 91 and 92 elastically presses the light emitting device 86 toward the support surface 82 a of the lamp body 82.
  • the optical member is provided so as to cover the light emitting element disposed on the substrate, the light distribution of the light emitted from the light emitting element can be adjusted. It becomes.
  • the substrate is attached to the heat radiating case member with screws, for example, when a ceramic material is used as the material of the substrate, the substrate may be broken. is there.
  • each of the pressing portions 91 c and 92 c of the pressing members 91 and 92 elastically presses the substrate 88 of the light emitting device 86 toward the support surface 82 a of the lamp body 82.
  • the substrate 88 it is difficult for the substrate 88 to be stressed, and the substrate 88 can be prevented from cracking.
  • each of the pressing members 91 and 92 made of a stainless steel plate spring is attached to a metal lamp body 82 using screws 93.
  • the wiring patterns and the light emitting diodes covered with the pressing portions 91c and 92c and the sealing material 90 are used. There is a concern that the creepage distance to the chip 89 is increased, and the planar size of the substrate 88 is increased.
  • the present invention has been made in view of the above reasons, and its purpose is to obtain a desired light distribution and to insulate a charging part of the mounting board without increasing the plane size of the mounting board. It is an object of the present invention to provide a light emitting device capable of enhancing performance and a lighting fixture using the same.
  • the light emitting device of the first aspect according to the present invention includes a heat dissipation member, a mounting substrate, a fixing member, and a lens unit.
  • the mounting substrate has a first surface and a second surface in the thickness direction.
  • the mounting substrate is in contact with the heat dissipation member on the first surface, and a light emitting element is mounted on the second surface.
  • the fixing member is configured to fix the mounting substrate to the heat dissipation member.
  • the fixing member includes an insulating member and a pressing member.
  • the insulating member is electrically insulating and is disposed on the second surface of the mounting substrate so as not to cover the light emitting element.
  • the pressing member is configured to press the mounting substrate against the heat radiating member with the insulating member.
  • the lens unit includes a lens and a void. The lens is disposed to face the second surface of the mounting substrate. The void is formed to prevent contact between the lens and the fixing member.
  • the fixing member includes a fixture for fixing the pressing member to the heat radiating member.
  • the void is formed so as to prevent contact between the fixture and the lens.
  • the lens has a first region that receives light from the light emitting element on a light incident surface facing the second surface of the mounting substrate. And a second region around the first region.
  • the void is formed by inclining the second region such that the distance from the heat radiating member increases as the distance from the first region increases.
  • the lens has a concave surface formed in the first region.
  • the lens is configured to emit light incident on the concave surface from a light emitting surface opposite to the light incident surface.
  • the lens part further includes an attachment part for fixing the lens to the heat dissipation member.
  • the attachment portion is formed at an end portion of the lens in a longitudinal direction in a reference plane parallel to the second surface.
  • the longitudinal direction is a direction in which the length of the lens is maximized.
  • the lens part in the sixth aspect, includes a first attachment part and a second attachment part as the attachment part.
  • the lens in the longitudinal direction is opposed to the first mounting portion and the second mounting portion in a predetermined direction that intersects the longitudinal direction and a lateral direction orthogonal to the longitudinal direction in the reference plane. Are formed at both end portions.
  • the lens in any one of the fifth to seventh aspects, has an elliptical shape in the reference plane.
  • the attachment portion protrudes from the lens toward the heat radiating member along the thickness direction. It is formed.
  • the attachment portion is located outside an area where the mounting substrate and the fixing member are disposed in the heat dissipation member. To be fixed to the heat radiating member.
  • the mounting board includes a charging unit connected to the light emitting element on the second surface.
  • the charging unit includes a circuit unit for supplying electric power from an external power source to the light emitting element.
  • the charging unit is located at the center of the second surface.
  • the mounting substrate is formed using a ceramic substrate.
  • a lighting fixture includes the light-emitting device (10) of any one of the first to fourteenth aspects, and a fixture body (20) that holds the light-emitting device (10). .
  • FIG. 3 is a sectional view taken along line AA in FIG. 2.
  • FIG. 3 is a sectional view taken along line AA in FIG. 2.
  • FIG. 3 is a sectional view which shows a light-emitting device same as the above.
  • FIG. 3 is a sectional view taken along line AA in FIG. 2.
  • It is the schematic perspective view seen from the light-incidence surface side of the lens part of the light-emitting device same as the above.
  • It is a schematic plan view of the lens part of a light-emitting device same as the above.
  • FIGS. 1 is a cross-sectional view taken along line BB in FIG.
  • the light emitting device 10 of the present embodiment can be used as a light source of the lighting fixture 30 (see FIGS. 12 to 14), for example.
  • the light-emitting device 10 includes a heat dissipation member 1, a mounting substrate 2b on which an LED (not shown) is mounted, an insulating cover that covers a side portion of the mounting substrate 2b and a peripheral portion of one surface (upper surface in FIG. 1) 2d. Insulating member 3) and a pressing member 4 that presses the mounting substrate 2 b to the heat radiating member 1 side through the insulating cover 3.
  • the light emitting device 10 includes a lens unit 40 that controls the light distribution of the light emitted from the LED.
  • the insulating member (insulating cover) 3 and the pressing member 4 constitute a fixing member that fixes the mounting board 2b to the heat dissipation member 1.
  • the heat radiating member 1 is formed in a plate shape (in the present embodiment, a substantially rectangular plate shape).
  • the heat radiating member 1 can be formed of a material (for example, a metal material such as aluminum, copper, and stainless steel) having a higher thermal conductivity than the resin.
  • the mounting substrate 2b has a first surface (lower surface in FIG. 1) 2c and a second surface (upper surface in FIG. 1) 2d in the thickness direction (vertical direction in FIG. 1).
  • the mounting substrate 2 is formed using, for example, a ceramic substrate.
  • the mounting substrate 2b is in contact with the heat radiating member 1 on the first surface 2c.
  • the mounting substrate 2b includes a circuit portion (not shown) for supplying power to the light emitting element from an external power source (not shown) on the second surface 2d.
  • the circuit portion is a portion that is energized during use (that is, a charging portion). Therefore, the mounting substrate 2b has the light emitting element mounted on the second surface 2d.
  • the mounting substrate 2b includes a charging unit connected to the light emitting element on the second surface 2d.
  • the charging unit includes a circuit unit (not shown) that supplies power to the light emitting element from an external power source (not shown).
  • the charging unit is located at the center of the second surface 2d.
  • the light emitting element is, for example, an LED.
  • the mounting substrate 2b is an electrically insulating ceramic substrate formed of, for example, a white ceramic material (for example, aluminum oxide, aluminum nitride, etc.).
  • the mounting board 2b is provided with a conductor pattern (not shown) that can be electrically connected to the LED.
  • a conductor pattern is a circuit part which supplies electric power to a light emitting element (LED) from an external power supply (not shown).
  • the outer peripheral shape of the mounting substrate 2b is formed in a rectangular shape, but this shape is not particularly limited.
  • a ceramic substrate is used as the mounting substrate 2b.
  • the present invention is not limited to this, and for example, a printed wiring board formed of an insulating base material made of glass epoxy resin or the like may be used. .
  • One or a plurality of LEDs are mounted on the central portion on the one surface side (second surface 2d) of the mounting substrate 2b.
  • a phosphor composed of an LED chip that emits blue light (hereinafter referred to as a blue LED chip) and a yellow phosphor that emits broad yellow light that is excited by the blue light emitted from the blue LED chip. Can be used to obtain white light.
  • Such a white LED has a color conversion part (not shown) made of a first light-transmitting material covering a blue LED chip and containing a yellow phosphor.
  • a first light transmissive material for example, a silicone resin, an epoxy resin, glass, or the like can be employed.
  • the sealing portion 2a made of the second light transmissive material seals the blue LED chip and the color conversion portion.
  • the second light transmissive material for example, silicone resin, epoxy resin, glass or the like can be employed.
  • the outer peripheral shape of the sealing part 2a is made into the rectangular shape, this shape is not specifically limited, For example, circular shape, elliptical shape, etc. may be sufficient.
  • the phosphor of the LED is not limited to the yellow phosphor, and, for example, a red phosphor and a green phosphor may be employed.
  • a white LED that obtains white light by combining an LED chip that emits purple to near ultraviolet light and a red phosphor, a green phosphor, and a blue phosphor may be used.
  • the LED may be a white LED that obtains white light by combining an LED chip that emits red light, an LED chip that emits green light, and a blue LED chip. Further, the emission color of the LED is not limited to white.
  • the LED sealed with the sealing portion 2a and the sealing portion 2a and the mounting substrate 2b may be collectively referred to as the light source portion 2.
  • the front surface (upper surface in FIG. 1) of the sealing portion 2a constitutes the light emitting surface of the light source unit 2.
  • first electrode portions for electrically connecting the LEDs are provided at one central portion on the one surface side (second surface 2d) of the mounting substrate 2b. It is formed by the part.
  • the anode side of the LED is electrically connected to one of the pair of first electrode portions.
  • the cathode side of the LED is electrically connected to the other of the pair of first electrode portions.
  • the pair of first electrode portions constitutes a charging portion that is electrically connected to the LED.
  • a pair of second electrode parts (not shown) for supplying power to the LEDs are part of the conductor pattern (circuit part) on the peripheral part on the one surface side (second surface 2d) of the mounting substrate 2b. It is formed by.
  • a pair of terminal portions 6a capable of electrically connecting a pair of electric wires 5a, 5b (see FIGS. 2, 3, 4 and the like) to the pair of second electrode portions of the mounting substrate 2b. 6b (see FIG. 3) are electrically connected by solder.
  • each of the pair of terminal portions 6a and 6b is configured by a U-shaped terminal plate, and both leg pieces of these terminal plates are mounted on the mounting substrate 2b.
  • the pair of second electrode portions are electrically connected by solder.
  • one terminal part 6a is visible among a pair of terminal parts 6a and 6b.
  • Each of the pair of electric wires 5a and 5b is a covered electric wire in which a conductor 5c (see FIG. 3) that can be electrically connected to the terminal portions 6a and 6b is covered with an insulating covering portion 5d (see FIG. 3).
  • a part of the conductor 5c that is electrically connected to the terminal portions 6a and 6b is exposed.
  • a part of the conductor 5c of each of the electric wires 5a and 5b is electrically connected to each of the pair of terminal portions 6a and 6b by, for example, a joint portion (not shown) made of solder. It is connected.
  • a connector (not shown) may be provided.
  • the insulating cover (insulating member) 3 has electrical insulation and is disposed on the second surface 2d of the mounting substrate 2b so as not to cover the light emitting element.
  • the insulating cover 3 includes a lid portion 3a that covers one surface side (second surface 2d) of the mounting substrate 2b and a side wall portion 3b that covers the side portion of the mounting substrate 2b.
  • a synthetic resin material having electrical insulation can be adopted as the material of the insulating cover 3.
  • an opening window 3c is provided in the lid portion 3a of the insulating cover 3 at a portion facing the light emitting surface of the light source unit 2. That is, the lid 3a is formed so as to cover the second surface 2d of the mounting substrate 2b. The lid 3a has an opening window 3c through which the light emitting element is exposed.
  • the inner peripheral shape of the opening window 3c is a rectangular shape, but this shape is not particularly limited, and may be, for example, a circular shape or an elliptical shape.
  • the opening size of the opening window 3c is set to be smaller than the planar size of the mounting substrate 2b and larger than the size of the light emitting surface of the light source unit 2.
  • the insulating cover 3 can cover the side portion of the mounting substrate 2b and the peripheral portion of the one surface (second surface 2d).
  • the side wall part 3b has wall parts 3b1 and 3b2 respectively located on both sides of the mounting board 2b in a predetermined direction (left and right direction in FIG. 1).
  • the wall portions 3b1 and 3b2 are respectively located on both sides of the mounting substrate 2b in a predetermined direction.
  • wall part 3b1, 3b2 is each formed in the both ends of the cover part 3a in a predetermined direction.
  • the predetermined direction is a direction intersecting the thickness direction of the mounting substrate 2b.
  • the predetermined direction is a direction (left-right direction in FIG. 1) orthogonal to the thickness direction of the mounting substrate 2b.
  • the wall 3b1 is located on the first end side (left end side in FIG. 1) of the mounting board 2b in a predetermined direction.
  • the wall 3b2 is located on the second end side (the right end side in FIG. 1) of the mounting substrate 2b in the predetermined direction.
  • the side wall portion 3b has a wall portion 3b3 located on one end side of the mounting substrate 2 in the second predetermined direction intersecting the thickness direction of the mounting substrate 2 and the predetermined direction.
  • the second predetermined direction is a thickness direction of the mounting substrate 2b and a direction orthogonal to the predetermined direction (the left-right direction in FIG. 3).
  • a storage portion 3f for storing a part of the pair of electric wires 5a and 5b electrically connected to the mounting substrate 2b is provided at one end portion (the lower left end portion in FIG. 5) of the side wall portion 3b of the insulating cover 3.
  • the side wall 3b is formed integrally with the one end.
  • the housing part 3f is provided with a housing chamber 12 for housing a part of the pair of electric wires 5a and 5b on the heat radiating member 1 side (lower side in FIG. 3).
  • the storage portion 3f stores a first storage chamber 12a for storing the exposed conductor 5c of the electric wires 5a and 5b, and a part of the insulating coating portion 5d of the electric wires 5a and 5b.
  • a second storage chamber 12b is provided.
  • the first storage chamber 12 a and the second storage chamber 12 b are partitioned by the partition wall portion 13.
  • the partition wall portion 13 is provided with a pair of electric wire insertion holes (not shown) for inserting the pair of electric wires 5a and 5b electrically connected to the mounting substrate 2b.
  • the first storage chamber 12a communicates with a space surrounded by the lid portion 3a and the side wall portion 3b of the insulating cover 3. Further, the first storage chamber 12 a communicates with the second storage chamber 12 b through the pair of electric wire insertion holes formed in the partition wall portion 13.
  • the bottom wall of the first storage chamber 12a is provided with an inclined portion 3g formed such that the distance between the storage portion 3f and the mounting substrate 2b gradually decreases as the insulating cover 3 approaches the opening window 3c side. It has been.
  • the light-emitting device 10 of this embodiment it is possible to reduce that the light radiated
  • the light emitting device 10 of the present embodiment it is possible to reduce the light emitted from the LED of the light source unit 2 from being reflected by the inclined surface of the inclined unit 3g. It is possible to widen the light distribution of the emitted light.
  • the partition wall part 13 comprises a part of side wall part 3b.
  • the exposed conductors 5c of the electric wires 5a and 5b are electrically connected to the pair of second electrode portions of the mounting substrate 2b via the terminal portions 6a and 6b.
  • the present invention is not limited to this, and the exposed conductor 5c of each of the electric wires 5a and 5b may be electrically connected to the pair of second electrode portions of the mounting substrate 2b directly by the joint portion. Good.
  • the light-emitting device 10 of this embodiment it becomes possible to make the inclination
  • the light-emitting device 10 of this embodiment since it becomes possible to suppress that the light radiated
  • the light distribution of the emitted light can be made wider.
  • a first rib 14 is provided on the bottom wall of the second storage chamber 12b so as to protrude toward the heat radiating member 1 (lower side in FIG. 3).
  • the first rib 14 sandwiches a part of the electric wire 5a inserted into one of the pair of electric wire insertion holes of the partition wall 13 with the inner peripheral wall of the second storage chamber 12b.
  • a second rib protruding toward the heat radiating member 1 is provided on the bottom wall of the second storage chamber 12b. This 2nd rib clamps a part of electric wire 5b inserted in the other electric wire insertion hole among said pair of electric wire insertion holes of the partition wall part 13 with the inner peripheral wall of the 2nd storage chamber 12b.
  • the first rib 14 constitutes a first tension stopper that sandwiches a part of the electric wire 5a with the inner peripheral wall of the second storage chamber 12b.
  • the said 2nd rib comprises the 2nd tension stop part which clamps a part of electric wire 5b with the internal peripheral wall of the 2nd storage chamber 12b.
  • tensile_strength which acts on a pair of electric wire 5a, 5b becomes unnecessary, and the tension
  • a third rib 46 protruding toward the heat radiating member 1 is provided on the bottom wall of the second storage chamber 12b.
  • the third rib 46 sandwiches a part of the electric wire 5a inserted into one of the pair of electric wire insertion holes of the partition wall 13 with the inner peripheral wall of the second storage chamber 12b.
  • a fourth rib protruding toward the heat radiating member 1 is provided on the bottom wall of the second storage chamber 12b.
  • the fourth rib sandwiches a part of the electric wire 5b inserted into the other electric wire insertion hole among the pair of electric wire insertion holes of the partition wall portion 13 with the inner peripheral wall of the second storage chamber 12b.
  • the third rib 46 constitutes a third tension stopper that sandwiches a part of the electric wire 5a with the inner peripheral wall of the second storage chamber 12b.
  • the fourth rib constitutes a fourth tension stop portion that sandwiches a part of the electric wire 5b with the inner peripheral wall of the second storage chamber 12b.
  • a pair of lead-out holes 3h and 3h for leading out the pair of electric wires 5a and 5b electrically connected to the mounting substrate 2b are provided on one side wall (left side wall in FIG. 3) of the second storage chamber 12b. 2 and FIG. 5).
  • a second resin such as silicone resin is used.
  • the inside of the storage chamber 12b may be filled.
  • the light emitting device 10 of the present embodiment it is possible to prevent water or the like from entering the storage chamber 12 through the pair of lead-out holes 3h, 3h of the storage portion 3f.
  • a pair of electric wires 5a and 5b led out from the pair of lead-out holes 3h and 3h of the housing portion 3f are emitted on one side of the heat radiating member 1 (lower left side in FIG. 5).
  • a derivation unit 16 that leads out of the apparatus 10 is provided.
  • the lead-out portion 16 is a notch formed in a part of the one side portion of the heat radiating member 1, and the one surface (upper surface in FIG. 5) and side surface (lower left side surface in FIG. 5) of the heat radiating member 1. A part of each of the other surfaces (the lower surface in FIG. 5) is open.
  • the side wall portion 3b of the insulating cover 3 has both wall portions 3b1 and 3b2 (in FIG. 5, the upper left wall portion 3b1 and the left upper wall portion 3b1) in a direction orthogonal to the direction in which the pair of electric wires 5a and 5b are led out (lower left direction in FIG. 5).
  • Each lower right wall portion 3b2) is provided with a flange portion 3d (see FIG. 1) protruding outward.
  • Each of the flange portions 3d is disposed on one end side (the lower end side in FIG. 1) of the both wall portions 3b1 and 3b2.
  • the flange portions 3d and 3d protrude outward from the respective wall portions 3b1 and 3b2 along a predetermined direction.
  • the flange portions 3d and 3d are formed at the tip portions (lower end portions in FIG. 1) of the wall portions 3b1 and 3b2.
  • the heat radiating member 1 has the recessed part 1b which receives wall part 3b1, 3b2. In the present embodiment, as shown in FIG. 1, the end portions (lower end portions in FIG. 1) of the wall portions 3b1 and 3b2 enter the recess 1b.
  • the pressing member 4 is configured to press the mounting substrate 2 b against the heat radiating member 1 with the insulating member 3.
  • the pressing member 4 is fixed to the heat radiating member 1 so as to sandwich the insulating member 3 and the mounting substrate 2 b with the heat radiating member 1.
  • the pressing member 4 is formed so as to contact the lid portion 3 a of the insulating member 3.
  • the pressing member 4 has a plate-like main body portion 4a formed in a U shape in plan view, a plate-like extension piece 4b extended to the main body portion 4a, and a distal end portion of the extension piece 4b. And a plate-like pressing portion 4c that presses the insulating cover 3 (see FIGS. 5, 10, and 11).
  • the pressing member 4 can be formed of a metal plate (for example, a stainless steel plate). That is, the pressing member 4 is formed of a metal material having elasticity, and integrally includes a main body portion 4a, a pressing portion 4c, an extending piece 4b, and protruding portions 4e and 4f.
  • the thickness dimension of the press member 4 is 0.3 mm, this numerical value is not specifically limited.
  • the pressing member 4 includes a plurality of extended pieces 4b (four in this embodiment).
  • the inclination angle with respect to one surface (the upper surface in FIG. 11) of the main body 4a in each extending piece 4b is set to an angle smaller than 90 degrees.
  • each pressing portion 4c of the pressing member 4 radiates heat from the insulating cover 3 with the end portion of each extending piece 4b opposite to the pressing portion 4c side as a fulcrum. It becomes possible to press elastically toward the member 1 side.
  • the main body 4 a is fixed to the heat radiating member 1.
  • the pressing portions 4c are arranged on both sides of the lid portion 3a in a predetermined direction intersecting the thickness direction of the mounting substrate 2b, and are in contact with the lid portion 3a in the thickness direction of the mounting substrate 2b.
  • the extending piece 4b is configured to connect the pressing portion 4c to the main body portion 4a.
  • the extended piece 4 b is a spring piece that elastically contacts the pressing portion 4 c with the insulating member 3.
  • the main body 4a includes two leg pieces 4a1 and 4a2 and a connecting piece 4a3 connected to each of one end portions (upper right end portion in FIG. 10) of each leg piece 4a1 and 4a2. Has been.
  • the leg piece 4a1 of the main body 4a is provided with two extending pieces 4b at the end (on the right lower end in FIG. 10) on the opposite leg piece 4a2 side. Further, the leg piece 4a2 of the main body part 4a is provided with two extending pieces 4b at the end (on the upper left end in FIG. 10) on the side of the opposing leg piece 4a1.
  • each of the pressing portions 4c of each extending piece 4b of the leg piece 4a1 protrudes toward the pressing portion 4c side (right side in FIG. 11) of the opposing extending piece 4b.
  • each of the pressing portions 4c of each extending piece 4b of the leg piece 4a2 protrudes toward the pressing portion 4c side (left side in FIG. 11) of the opposing extending piece 4b.
  • the number of the extended pieces 4b is four, but this number is not particularly limited, and the number of the extended pieces 4b is the number of the leg pieces 4a1 and 4a2. There may be at least one for each. That is, the main body portion 4a of the pressing member 4 only needs to have at least a pair of extending pieces 4b and 4b. In other words, in the light emitting device 10 of the present embodiment, the pressing member 4 only needs to have at least a pair of pressing portions 4c and 4c.
  • the pair of pressing portions 4c and 4c are symmetric with respect to the straight line along the direction in which the pair of electric wires 5a and 5b led out from the pair of lead-out holes 3h and 3h in the storage portion 3f. As an axis, it is preferably arranged at a position that is line-symmetric.
  • the pair of pressing portions 4c, 4c of the pressing member 4 can press the insulating cover 3 substantially uniformly, and the insulating cover 3 loads the mounting substrate 2b substantially uniformly. Can be applied.
  • the insulating cover 3 can apply a load to the mounting substrate 2b substantially uniformly, so that cracking of the mounting substrate 2b can be suppressed.
  • leg piece 4a1 is provided with a first projecting portion 4e projecting toward the opposing leg piece 4a2 side at an end portion on the side of the opposing leg piece 4a2 (the lower right end portion in FIG. 10).
  • the first projecting portion 4e is disposed between the two extended pieces 4b extended to the leg pieces 4a1.
  • the 1st protrusion part 4e is arrange
  • leg piece 4a2 is provided with a second projecting portion 4f projecting toward the facing leg piece 4a1 side at an end portion (left upper end portion in FIG. 10) on the facing leg piece 4a1 side.
  • the second projecting portion 4f is disposed between the two extended pieces 4b extended to the leg pieces 4a2.
  • the 2nd protrusion part 4f is arrange
  • the protruding portions 4e and 4f constitute a restricting portion that restricts the movement of the insulating member 3 in a predetermined direction (left and right direction in FIG. 1) intersecting the thickness direction of the mounting substrate 2b.
  • the protruding portions (regulating portions) 4e and 4f are disposed on both sides of the insulating member 3 in a predetermined direction so as to contact the insulating member 3.
  • the protruding portions (regulating portions) 4e and 4f are in contact with the wall portions 3b1 and 3b2 in a predetermined direction, respectively, and between the protruding portions (restricting portions) 4e and 4f and the heat radiating member 1 It arrange
  • the pressing member 4 As a manufacturing method of the pressing member 4, for example, first, a shape corresponding to a development view of the pressing member 4 is punched from a metal plate, and each extended piece 4b of the pressing member 4 punched is bent. . And the press part 4c is formed by bending each of the front-end
  • the lens unit 40 is made of a translucent material (for example, silicone resin, acrylic resin, glass, etc.).
  • the lens unit 40 includes a dome-shaped main body (lens) 41 that covers the light emitting surface of the light source unit 2, and protrudes from the outer peripheral portion of the main body 41 toward the heat radiating member 1, so that the periphery of the insulating cover 3 and the pressing member 4. It has the attachment part 47 attached to the heat radiating member 1 (refer FIG. 1).
  • the mounting portion 47 is configured to fix the lens 41 to the heat dissipating member 1.
  • the attachment portion 47 is formed at the end portion of the lens 41 in the longitudinal direction in a surface (reference surface) parallel to the second surface 2d of the mounting substrate 2b.
  • the longitudinal direction is a direction in which the length of the lens 41 is maximized.
  • the mounting portion 47 is formed so as to protrude from the lens 41 toward the heat radiating member 1 along the thickness direction (vertical direction in FIG. 1).
  • the mounting portion 47 is fixed to the heat radiating member 1 outside the region (the region in the first recess 1a) where the mounting substrate 2b and the fixing member (the insulating member 3 and the pressing member 4) are disposed in the heat radiating member 1. .
  • the lens unit 40 includes a first mounting portion 47A and a second mounting portion 47B as the mounting portion 47.
  • the first mounting portion 47 ⁇ / b> A and the second mounting portion 47 ⁇ / b> B are arranged in the short side direction (see FIG. 4 are formed at both ends of the lens 41 in the longitudinal direction so as to face each other in a predetermined direction.
  • the predetermined direction preferably has an angle with the longitudinal direction of less than 45 °.
  • the lens part 40 has a mounting part 47 that protrudes from the outer peripheral part of the lens part 40 toward the heat radiating member 1 and is attached to the heat radiating member 1 around the insulating cover 3 and the pressing member 4.
  • the number of the attachment portions 47 is plural (two in the present embodiment), but this number is not particularly limited, and may be one.
  • the number of the attaching parts 47 is two, there should just be at least two.
  • the main body (lens) 41 is disposed so as to face the second surface 2d of the mounting substrate 2b.
  • the lens 41 includes a first region that receives light from the light emitting element and a first region (in the center portion in the present embodiment) on a light incident surface (lower surface in FIG. 1) that faces the second surface 2d of the mounting substrate 2b. And a second region around the outer periphery (in this embodiment, the outer peripheral portion).
  • the lens 41 has a concave surface 41a formed in the first region.
  • the lens 41 is configured to emit light incident on the concave surface 41a from a light emitting surface (upper surface in FIG. 1) opposite to the light incident surface.
  • the lens 41 has an elliptical shape in a plane (reference plane) parallel to the second surface 2d of the mounting substrate 2b.
  • the lens (main body part) 41 is formed in a hollow semi-elliptical sphere.
  • the light emitting surface side (upper surface side in FIG. 6) of the main body 41 is formed as a convex surface.
  • the radius of curvature of the central portion on the light emitting surface side of the main body 41 is set to be larger than the radius of curvature of the outer peripheral portion on the light emitting surface side of the main body 41.
  • a concave surface 41 a is formed at a portion (first region) facing the light emitting surface of the light source unit 2 at the center of the light incident surface side of the main body 41.
  • a gap 44 is formed between the concave surface 41 a of the main body 41 and the light emitting surface of the light source unit 2.
  • the shape of the concave surface 41a is formed in a semi-elliptical sphere.
  • the opening size of the concave surface 41a is set larger than the planar size of the sealing portion 2a of the light source unit 2.
  • the main body 41 is provided with an inclined portion 41b that is inclined from the outer peripheral portion of the main body portion 41 toward the central portion of the mounting substrate 2b on the outer peripheral portion of the main body portion 41 on the light incident surface side.
  • the lens portion 40 is provided with an inclined portion 41b that is inclined from the outer peripheral portion of the lens portion 40 toward the central portion of the mounting substrate 2b on the light incident surface side of the lens portion 40.
  • the central portion of the lens portion 40 can be brought closer to the mounting substrate 2b. Therefore, in the light emitting device 10 of the present embodiment, the light emitted from the light emitting surface of the light source unit 2 is easily incident on the concave surface 41a of the main body unit 41, and the light utilization efficiency can be further increased.
  • the main body 41 has an elliptical shape in plan view (see FIGS. 4 and 7).
  • the lens unit 40 has an elliptical shape in plan view.
  • the lens 41 has an elliptical shape in a plane (reference plane) parallel to the second surface 2d of the mounting substrate 2b.
  • the short axis of the main body portion 41 in a plan view is made to coincide with the direction in which the pair of electric wires 5a and 5b led out from the pair of lead-out holes 3h and 3h of the storage portion 3f (see FIG. 4).
  • each attachment part 47 is each arrange
  • the mounting portions 47 are respectively disposed at both ends in the long axis direction of the lens unit 40 in plan view.
  • the light emitting device 10 of the present embodiment it is possible to reduce the dimension of the lens unit 40 in the short axis direction of the heat radiating member 1 and to reduce the size.
  • the thickness dimension of the main body 41 is set such that the optical path length gradually increases as the distance from the optical axis of the main body 41 increases on the long axis of the main body 41 in plan view (see FIG. 1).
  • the thickness dimension of the main body 41 is set such that the optical path length gradually decreases as the distance from the optical axis of the main body 41 increases on the short axis of the main body 41 in plan view (see FIG. 3).
  • the mounting portion 47 includes a leg portion 43 that protrudes from the lens 41 toward the heat radiating member 1 along the thickness direction (vertical direction in FIG. 1).
  • the leg portion 43 is provided with a protruding piece 42 that extends outward from one end portion (lower end portion in FIG. 6) of the leg portion 43 and can be attached to one surface side (upper surface side in FIG. 1) of the heat radiating member 1. ing. That is, the attachment portion 47 is configured by the leg portion 43 and the protruding piece 42.
  • the mounting portions 47 are arranged on different sides with respect to the major axis in the minor axis direction of the main body 41 in plan view (see FIGS. 4 and 7).
  • the lens portion 40 has two attachment portions 47, and each attachment portion 47 is arranged on a different side across the major axis in the minor axis direction of the lens portion 40 in plan view. It is preferred that
  • the planar view shape of the lens part 40 is made into the ellipse shape, it becomes possible to make the dimension of the long axis direction of the lens part 40 in the thermal radiation member 1 small, and size reduction. It becomes possible to plan.
  • a space 45 (see FIG. 1) is formed between the light incident surface side of the main body 41 and each mounting portion 47.
  • a space 45 is formed between the outer peripheral portion of the main body portion 41 on the light incident surface side and each mounting portion 47.
  • the space 45 is formed between the light incident surface side of the lens unit 40 and each mounting portion 47.
  • Such a space (vacant space) 45 is formed so as to prevent contact between the lens 41 and the fixing member (the insulating member 3 and the pressing member 4).
  • the void 45 is formed by inclining the second region so that the distance from the heat radiating member 1 increases as the distance from the first region increases.
  • the lens 41 includes an inclined portion 41b serving as a second region, and a void 45 is defined by the inclined portion 41b.
  • the fixing member includes a first fixing screw 11 as a fixture for fixing the pressing member 4 to the heat radiating member 1.
  • the void 45 is formed so as to prevent contact between the first fixing screw 11 and the lens 41.
  • a first recess 1a for disposing the main body 4a of the pressing member 4 is provided at the center of one surface side (the upper surface side in FIG. 1) of the heat radiating member 1.
  • the thickness dimension of each leg piece 4a1, 4a2 and connecting piece 4a3 is set smaller than the depth dimension of the first recess 1a.
  • the first recess 1a defines an area where the mounting board 2b and the fixing member (the insulating member 3 and the pressing member 4) are arranged in the heat dissipation member 1.
  • a first fixing screw hole (not shown) for screwing a first fixing screw (fixing tool) 11 for fixing the pressing member 4 to the heat radiating member 1 is formed in the inner bottom wall of the first recess 1a. However, it is formed in a plurality of places (in this embodiment, two places).
  • the main body portion 4 a of the pressing member 4 is a first portion through which the first fixing screw 11 is inserted into each of the positions corresponding to the first fixing screw holes in the first recess 1 a of the heat radiating member 1.
  • the fixing screw insertion hole 4d (see FIGS. 10 and 11) is penetrated.
  • the above-described first fixing screw insertion hole 4d is provided in each of the leg pieces 4a1 and 4a2.
  • the first fixing screw 11 is inserted into each first fixing screw insertion hole 4d in the main body portion 4a of the pressing member 4, and each of the first fixing screws 11 of the heat radiation member 1 is inserted.
  • the pressing member 4 can be fixed to the heat radiating member 1 by being screwed into the fixing screw hole.
  • one surface side (the upper surface side in FIG. 1) of the heat radiating member 1 is provided with an insulating cover at a portion surrounded by the leg pieces 4a1 and 4a2 and the connecting piece 4a3 when the pressing member 4 is fixed to the heat radiating member 1.
  • 2 is provided with a second recess 1b (see FIGS. 1 and 3).
  • the inner peripheral shape of the second recess 1b is formed in a rectangular shape.
  • the peripheral portion on the one surface side of the heat radiating member 1 has a third recess 1g (FIGS. 2, 3 and 4) for disposing the storage portion 3f in a portion facing the second storage chamber 12b of the storage portion 3f. , 5).
  • the third recess 1g is formed so as to communicate with the second recess 1b.
  • the third recess 1 g is formed so as to communicate with the lead-out portion 16.
  • each of the second recess 1b and the third recess 1g is set larger than the depth dimension of the first recess 1a.
  • columnar (in this embodiment, columnar) projections 19 for attaching the lens portion 40 are provided at a plurality of locations (in this embodiment). 2 places).
  • Each of the protrusions 19 is formed with a screw hole 19a into which a screw 17 (see FIGS. 1 and 4) for attaching the lens unit 40 to the heat radiating member 1 is screwed.
  • each projection piece 42 of the lens unit 40 is provided with an insertion hole 42a (see FIGS. 6 and 7) through which each projection 19 of the heat radiating member 1 is inserted.
  • the screws 17 are connected to the projections of the heat dissipation member 1.
  • the lens portion 40 can be attached to the heat dissipation member 1 by being screwed into the 19 screw holes 19a.
  • the outer peripheral shape of the protrusion 1c is formed in a rectangular shape, but this shape is not particularly limited.
  • the mounting substrate 2b is disposed on the tip surface 1e side of the projecting portion 1c.
  • the mounting substrate 2b is disposed on the one surface side of the heat radiating member 1 (the front end surface 1e side of the protruding portion 1c of the heat radiating member 1).
  • the planar size of the mounting substrate 2b is such that when the side portion of the mounting substrate 2b and the peripheral portion of the one surface are covered with the insulating cover 3, the side portion of the mounting substrate 2b is the side wall portion 3b of the insulating cover 3 and the partition wall. It is set to abut against the portion 13. Thereby, in the light-emitting device 10 of this embodiment, it becomes possible to control that the mounting substrate 2b moves to the side.
  • planar size of the protrusion part 1c of the heat radiating member 1 is set smaller than the planar size of the mounting substrate 2b, it may be set to the same size as the planar size of the mounting substrate 2b. Good. Thereby, in the light-emitting device 10 of this embodiment, it becomes possible to efficiently conduct the heat generated by the LEDs of the light source unit 2 to the heat radiating member 1.
  • each flange 3d of the insulating cover 3 is set to be smaller than the distance between the side surface of the projecting portion 1c of the heat radiating member 1 and the inner side surface of the second recess 1b of the heat radiating member 1. (See FIG. 1).
  • each collar part 3d is set smaller than the projecting dimension of the projecting part 1c (see FIG. 1).
  • peripheral portion of the lid portion 3a of the insulating cover 3 is disposed on each of the end portions in the orthogonal direction (the upper left end portion and the lower right end portion in FIG. 5) on the heat radiating member 1 side (the lower side in FIG. 5).
  • Convex part 3e (refer to Drawing 1) which protrudes to is provided. Each convex portion 3 e sandwiches the mounting substrate 2 b with the protruding portion 1 c of the heat radiating member 1.
  • the projecting dimensions of the projecting parts 4 e and 4 f of the pressing member 4 are set to dimensions that allow contact with the outside of the side wall part 3 b of the insulating cover 3 when the pressing member 4 is fixed to the heat radiating member 1. (See FIG. 1).
  • each of the protrusions 4e and 4f restricts the insulating cover 3 from moving to the side of the mounting substrate 2b.
  • the insulating cover 3 moves to the light emitting surface side (upper side in FIG. 1) of the light source unit 2 due to the elastic deformation of each extending piece 4b of the pressing member 4, Since each flange portion 3d of the insulating cover 3 hits the projecting portions 4e and 4f of the pressing member 4, it is possible to prevent the insulating cover 3 from being detached from the pressing member 4.
  • attachment pieces 1f (FIGS. 2 and 3) for attaching the light emitting device 10 to the fixture body 20 (see FIG. 12) of the lighting fixture 30 are provided on the side of the heat radiating member 1. , 4 and 5) are extended laterally.
  • Each of the mounting pieces 1f is provided with a first mounting screw insertion hole 1d through which a first mounting screw (not shown) for mounting the light emitting device 10 to the instrument body 20 is inserted.
  • the number of the attachment pieces 1f is three, this number is not specifically limited.
  • the insulating cover 3 covers the side portion of the mounting substrate 2b and the peripheral portion of the one surface. At this time, the sealing portion 2 a of the light source unit 2 is exposed from the opening window 3 c of the insulating cover 3.
  • the mounting substrate 2b of the light source unit 2 is disposed on the tip end surface 1e side of the projecting portion 1c of the heat radiating member 1, and the insulating cover 3 is placed in the second and third recesses 1b and 1b of the heat radiating member 1. Place 1g.
  • the main body 4 a of the pressing member 4 is disposed in the first recess 1 a of the heat radiating member 1, and the pressing member 4 is fixed to the heat radiating member 1 with the first fixing screw 11. Finally, the light emitting device 10 is assembled by attaching the lens unit 40 to the heat dissipation member 1.
  • each of the pressing portions 4c of the pressing member 4 can press the insulating cover 3 toward the heat radiating member 1 side. That is, in the light emitting device 10 of the present embodiment, the pressing member 4 can press the mounting substrate 2b to the heat radiating member 1 side through the insulating cover 3.
  • the mounting substrate 2 b is fixed to the heat radiating member 1 by the pressing member 4 through the insulating cover 3. Thereby, in the light-emitting device 10 of this embodiment, it becomes possible to suppress the crack of the mounting substrate 2b.
  • the pressing member 4 can press the mounting substrate 2b to the heat radiating member 1 side through the insulating cover 3, so that the conventional example having the configuration shown in FIG. Compared with the LED lamp 81, the surface area between each pressing portion 4c of the pressing member 4 and the charging portion (the pair of first electrode portions) of the mounting substrate 2b without increasing the planar size of the mounting substrate 2b. The distance can be increased.
  • the light-emitting device 10 of this embodiment since it becomes possible to lengthen the creeping distance between each press part 4c of the press member 4, and the said charging part of the mounting board 2b, it improves lightning surge resistance. Thus, the electrical insulation performance of the charging part of the mounting substrate 2b can be improved. In short, in the light emitting device 10 of the present embodiment, it is possible to improve the insulating performance of the charging unit of the mounting substrate 2b without increasing the planar size of the mounting substrate 2b.
  • the pressing member 4 is provided with the restriction portions (respective protrusions 4e and 4f) that restrict the insulating cover 3 from moving to the side of the mounting substrate 2b. It is possible to regulate the movement of the cover 3 to the side of the mounting substrate 2b, and the above creepage distance can be kept substantially constant. Thereby, in the light-emitting device 10 of this embodiment, it becomes possible to improve the electrical insulation performance of the said charging part of the mounting board
  • the pressing member 4 can press the mounting substrate 2b to the heat radiating member 1 side via the insulating cover 3, the heat generated by the LEDs of the light source unit 2 Can be efficiently conducted to the heat radiating member 1 through the mounting substrate 2b, and the temperature rise of the LED can be suppressed.
  • a heat conductive member such as a heat radiating grease or a heat conductive sheet is provided between the mounting substrate 2b and the protruding portion 1c of the heat radiating member 1. ) Is preferably arranged.
  • the light emitting device 10 of the present embodiment it is possible to efficiently conduct the heat generated by the LEDs of the light source unit 2 to the heat radiating member 1 through the mounting substrate 2b and the heat conductive member. It becomes possible to improve the heat dissipation of.
  • the insulating cover 3 can apply a load to the mounting substrate 2b substantially uniformly, so that the thermal resistance between the mounting substrate 2b and the projecting portion 1c of the heat radiating member 1 is achieved. Therefore, it is possible to more efficiently conduct the heat generated by the LED of the light source unit 2 to the heat radiating member 1.
  • the heat dissipating member 1 and the one surface opposite to the heat dissipating member 1 side which is disposed on one surface side of the heat dissipating member 1 (the front end surface 1e side of the protrusion 1c).
  • the pressing member 4 that presses the mounting substrate 2b to the heat radiating member 1 side through the insulating cover 3 and the lens unit 40 that controls the light distribution of the light emitted from the LED are provided.
  • the lens unit 40 is attached to the heat radiating member 1 around the insulating cover 3 and the pressing member 4 by protruding from the outer peripheral part of the lens unit 40 toward the heat radiating member 1 side.
  • a space 45 is formed between the light incident surface side of the lens portion 40 and the mounting portion 47.
  • the light emitting device 10 includes the heat radiating member 1, the mounting substrate 2 b, the fixing member, and the lens unit 40.
  • the mounting substrate 2b has a first surface 2c and a second surface 2d in the thickness direction, is in contact with the heat radiating member 1 at the first surface 2c, and the light emitting element is mounted on the second surface 2d.
  • the fixing member is configured to fix the mounting substrate 2 b to the heat dissipation member 1.
  • the fixing member includes an insulating member 3 and a pressing member 4.
  • the insulating member 3 has electrical insulation and is disposed on the second surface 2d of the mounting substrate 2b so as not to cover the light emitting element.
  • the pressing member 4 is configured to press the mounting substrate 2 b against the heat radiating member 1 with the insulating member 3.
  • the lens unit 40 includes a lens (main body unit) 41 and a space (space) 45.
  • the lens 41 is disposed so as to face the second surface 2d of the mounting substrate 2b.
  • the void 45 is formed so as to prevent contact between the lens 41 and the fixing member (insulating member 3, pressing member 4).
  • the fixing member (insulating member 3, pressing member 4) includes a fixture (first fixing screw) 11 that fixes the pressing member 4 to the heat radiating member 1.
  • the void 45 is formed so as to prevent contact between the fixture 11 and the lens 41. This configuration is arbitrary.
  • the lens 41 includes a first region that receives light from the light emitting element on a light incident surface that faces the second surface 2d of the mounting substrate 2b, and a first region around the first region. And two regions.
  • the void 45 is formed by inclining the second region so that the distance from the heat radiating member 1 increases as the distance from the first region increases. This configuration is arbitrary.
  • the lens 41 has a concave surface 41a formed in the first region.
  • the lens 41 is configured to emit light incident on the concave surface 41a from a light emitting surface opposite to the light incident surface. This configuration is arbitrary.
  • the lens unit 40 further includes an attachment unit 47 that fixes the lens 41 to the heat radiating member 1. This configuration is arbitrary.
  • the mounting portion 47 is formed at the end of the lens 41 in the longitudinal direction in the reference plane parallel to the second surface 2d.
  • the longitudinal direction is a direction in which the length of the lens 41 is maximized. This configuration is arbitrary.
  • the lens unit 40 includes the first mounting portion 47A and the second mounting portion 47B as the mounting portion 47.
  • the first mounting portion 47A and the second mounting portion 47B are disposed at both ends of the lens 41 in the longitudinal direction so as to face each other in a predetermined direction that intersects the longitudinal direction and the lateral direction orthogonal to the longitudinal direction in the reference plane. Each is formed. This configuration is arbitrary.
  • the lens 41 has an elliptical shape in the reference plane. This configuration is arbitrary.
  • the attachment portion 47 is formed so as to protrude from the lens 41 toward the heat radiating member 1 along the thickness direction. This configuration is arbitrary.
  • the mounting portion 47 is fixed to the heat radiating member 1 outside the region of the heat radiating member 1 where the mounting substrate 2b and the fixing members 3 and 4 are disposed. This configuration is arbitrary.
  • the mounting substrate 2b includes a charging unit connected to the light emitting element on the second surface 2d. This configuration is arbitrary.
  • the charging unit includes a circuit unit that supplies power to the light emitting element from an external power source. This configuration is arbitrary.
  • the charging unit is located at the center of the second surface 2d. This configuration is arbitrary.
  • the mounting substrate 2b is formed using a ceramic substrate. This configuration is arbitrary.
  • the lighting fixture 30 (30A) of the present embodiment is a street lamp.
  • the lighting fixture 30 ⁇ / b> A includes the above-described light emitting device 10, a fixture main body 20 that holds the light emitting device 10, and a translucent glove 21 that covers the light emitting device 10 held by the fixture main body 20.
  • a plurality of (four in the present embodiment) light emitting devices 10 are held in one fixture body 20. Further, in the lighting fixture 30A, the number of the light emitting devices 10 is plural, but may be one.
  • the instrument body 20 can be formed of a metal material such as aluminum, for example.
  • the instrument main body 20 can be formed by, for example, aluminum die casting when aluminum is adopted as the metal material.
  • the instrument main body 20 has a bowl-shaped main body portion 20a having an opening surface on the lower side, and a holding portion 20b that is fixed to the inner bottom wall of the main body portion 20a and holds each light emitting device 10.
  • the holding part 20b is formed in a hollow quadrangular frustum shape.
  • the bottom part (the upper surface part in FIG. 12) of the holding part 20b is provided with a flange part 20c for fixing the holding part 20b to the main body part 20a.
  • the outer peripheral shape of the flange portion 20c is formed in a circular shape.
  • maintenance part 20b is formed in the shape of a quadrangular pyramid, this shape is not specifically limited.
  • the outer peripheral shape of the collar part 20c is formed in circular shape, this shape is not specifically limited.
  • the flange portion 20c of the holding portion 20b has a plurality of second fixing screw insertion holes (not shown) through which the second fixing screw 23 for fixing the holding portion 20b to the main body portion 20a is inserted (in the lighting fixture 30A). 4 places).
  • the second fixing screw 23 is inserted into the second fixing screw insertion holes in the flange portion 20c of the holding portion 20b, and is screwed into the second fixing screw holes of the main body portion 20a.
  • maintenance part 20b can be fixed to the main-body part 20a.
  • one end portion (the lower surface portion in FIG. 12) of the holding portion 20b on the opposite side from the bottom surface portion side is connected to one end portion (the upper end portion in FIG. 12) of the columnar pole 22 standing on the road or the like.
  • a fixing portion (not shown) that can detachably fix the lighting fixture 30A is provided.
  • each light emitting device 10 is held by each side surface portion of the holding portion 20b.
  • the first mounting screws are screwed into the side portions of the holding portion 20b at positions corresponding to the first mounting screw insertion holes 1d in the heat dissipation member 1 of the light emitting device 10.
  • a first mounting screw hole (not shown) is provided.
  • the first mounting screws are inserted into the first mounting screw insertion holes 1d in the heat dissipation member 1 of the light emitting device 10 and screwed into the first mounting screw holes of the holding portion 20b.
  • each of the light emitting devices 10 is fixed to the holding portion 20b.
  • the holding unit 20 b can hold the light emitting device 10.
  • the light emitting device 10 is provided with a protrusion 15 for positioning the light emitting device 10 on the holding portion 20b on the other surface side of the heat radiating member 1 (the lower surface side in FIGS. 1 and 3).
  • a recess (not shown) is provided on each side surface of the holding portion 20 b at a position corresponding to each of the protrusions 15 of the heat radiating member 1 of the light emitting device 10.
  • the light emitting device 10 when the light emitting device 10 is attached to the holding portion 20b, the light emitting device 10 can be positioned to the holding portion 20b, and workability for attaching the light emitting device 10 to the holding portion 20b is improved. Is possible.
  • the number of protrusions 15 is three, but the number is not particularly limited.
  • a lighting device (not shown) for lighting each light emitting device 10 is arranged inside the holding portion 20b.
  • the pair of electric wires 5a and 5b of each light-emitting device 10 is electrically connected to the lighting device.
  • illustration of a pair of electric wire 5a, 5b of each light-emitting device 10 is abbreviate
  • the globe 21 is formed in a bowl shape having an opening surface on the upper side.
  • a translucent material is used as the material of the globe 21.
  • a light-transmitting resin for example, ABS resin, acrylic resin, polystyrene resin, or the like
  • glass or the like can be used as the material of the globe 21.
  • the size of the opening surface of the globe 21 is set to be smaller than the size of the opening surface of the main body 20a.
  • An insertion hole 21 a for inserting the pole 22 is formed in the bottom wall of the globe 21.
  • the outer peripheral wall on the upper side of the globe 21 is provided with a plurality of second attachment screw holes 21b for screwing second attachment screws (not shown) for attaching the globe 21 to the instrument body 20.
  • the lower peripheral wall of the main body 20a of the instrument main body 20 is a second mounting screw through which the second mounting screw is inserted at a position corresponding to each of the second mounting screw holes 21b of the globe 21.
  • An insertion hole 20d is provided therethrough.
  • the second mounting screws are inserted into the second mounting screw insertion holes 20 d in the main body portion 20 a of the fixture body 20, and screwed into the second mounting screw holes 21 b of the globe 21.
  • the glove 21 is attached to the instrument body 20.
  • the fixture body 20 and the globe 21 are fixed by the second mounting screw via a fastener (metal fitting) (not shown).
  • the fastener and the second attachment screw are used as means for attaching the globe 21 to the appliance main body 20, but this means is not particularly limited.
  • the lighting fixture 30 using the above-described light emitting device 10 is not limited to the lighting fixture 30A having the configuration shown in FIG. 12, but may be, for example, the lighting fixture 30 (30B) having the configuration shown in FIGS.
  • the lighting fixture 30 (second example) of the lighting fixture 30 including the light emitting device 10 of the present embodiment.
  • the lighting fixture 30 (30B) of the second example is a projector, and is a light-transmitting device that covers the above-described light-emitting device 10, the fixture main body 50 that holds the light-emitting device 10, and the light-emitting device 10 that is held by the fixture main body 50.
  • the cover 55 is provided.
  • the lighting fixture 30 ⁇ / b> B includes a reflection plate 49 that is attached to the light emitting device 10 and reflects light emitted from the light emitting device 10 toward the cover 55.
  • a plurality of (for example, eight) light emitting devices 10 are held in one fixture body 50.
  • the number of the light-emitting devices 10 is made into multiple, one may be sufficient.
  • the cover 55 is not shown.
  • the appliance main body 50 includes a box-shaped main body 51 having an attachment portion 51 a for attaching each light emitting device 10, a fixture 53 for fixing the lighting fixture 30 ⁇ / b> B to a construction surface of a wall surface, for example, It has the connection part 52 which connects the fixing tool 53 rotatably.
  • a lighting device 54 for lighting each light emitting device 10 is arranged inside the main body 51.
  • Each lighting fixture 30 (30A, 30B) of the present embodiment described above includes the above-described light-emitting device 10 and a fixture body (20, 50) that holds the light-emitting device 10.
  • illumination using the light emitting device 10 that can obtain a desired light distribution and can improve the insulating performance of the charging portion of the mounting board 2b without increasing the planar size of the mounting board 2b.
  • An instrument 30 can be provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Led Device Packages (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

L'invention concerne un dispositif électroluminescent qui comprend un élément de dissipation thermique, une carte de montage, un élément de fixation et une partie lentille. La carte de montage a une première surface et une seconde surface disposées dans la direction de l'épaisseur. La carte de montage possède un élément électroluminescent qui est monté sur la seconde surface et qui est en contact avec l'élément de dissipation thermique par l'intermédiaire de la première surface. L'élément de fixation est configuré de manière à fixer la carte de montage sur l'élément de dissipation thermique. L'élément de fixation comprend un élément isolant et un élément de pression. L'élément isolant a des propriétés d'isolation électrique et est positionné sur la seconde surface de la carte de montage de manière à ne pas recouvrir l'élément électroluminescent. L'élément de pression est configuré de manière à presser la carte de montage contre l'élément de dissipation thermique, par l'intermédiaire de l'élément isolant. La partie lentille comprend une lentille et une cavité. La lentille est positionnée de manière à faire face à la seconde surface de la carte de montage. La cavité est formée de manière à empêcher que la lentille et l'élément de fixation n'entrent en contact.
PCT/JP2012/080682 2012-02-28 2012-11-28 Dispositif électroluminescent et appareil d'éclairage utilisant celui-ci WO2013128732A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-042109 2012-02-28
JP2012042109A JP5906436B2 (ja) 2012-02-28 2012-02-28 発光装置およびそれを用いた照明器具

Publications (1)

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WO2013128732A1 true WO2013128732A1 (fr) 2013-09-06

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JP (1) JP5906436B2 (fr)
WO (1) WO2013128732A1 (fr)

Cited By (3)

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WO2015101420A1 (fr) * 2014-01-02 2015-07-09 Tyco Electronics Nederland B.V. Ensemble douille de del
EP3033572A4 (fr) * 2014-03-12 2017-01-11 Ideal Industries, Inc. Dispositif pour fixer une source de lumière à del sur une surface de dissipateur de chaleur
WO2021129664A1 (fr) * 2019-12-27 2021-07-01 苏州欧普照明有限公司 Module source de lumière et lampe

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WO2015111543A1 (fr) * 2014-01-22 2015-07-30 株式会社小糸製作所 Lampe de véhicule
JP6398476B2 (ja) * 2014-08-29 2018-10-03 岩崎電気株式会社 光源ユニット、及び照明器具
JP7357483B2 (ja) * 2019-07-31 2023-10-06 三菱電機株式会社 照明器具

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JP2008532300A (ja) * 2005-02-28 2008-08-14 オスラム オプト セミコンダクターズ ゲゼルシャフト ミット ベシュレンクテル ハフツング 照明装置
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JP2011100653A (ja) * 2009-11-06 2011-05-19 Panasonic Electric Works Co Ltd Ｌｅｄパッケージの取付構造およびｌｅｄ照明装置

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Publication number Priority date Publication date Assignee Title
WO2015101420A1 (fr) * 2014-01-02 2015-07-09 Tyco Electronics Nederland B.V. Ensemble douille de del
CN105849461A (zh) * 2014-01-02 2016-08-10 泰科电子连接荷兰公司 Led插座组件
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EP3033572A4 (fr) * 2014-03-12 2017-01-11 Ideal Industries, Inc. Dispositif pour fixer une source de lumière à del sur une surface de dissipateur de chaleur
WO2021129664A1 (fr) * 2019-12-27 2021-07-01 苏州欧普照明有限公司 Module source de lumière et lampe

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