WO2022176770A1 - 灯具用レンズユニット、灯具用部材、及び、灯具 - Google Patents

灯具用レンズユニット、灯具用部材、及び、灯具 Download PDF

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Publication number
WO2022176770A1
WO2022176770A1 PCT/JP2022/005323 JP2022005323W WO2022176770A1 WO 2022176770 A1 WO2022176770 A1 WO 2022176770A1 JP 2022005323 W JP2022005323 W JP 2022005323W WO 2022176770 A1 WO2022176770 A1 WO 2022176770A1
Authority
WO
WIPO (PCT)
Prior art keywords
lens
lamp
lenses
substrate
housing
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2022/005323
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
幹雄 漆畑
拓弥 原田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koito Manufacturing Co Ltd
Original Assignee
Koito Manufacturing Co Ltd
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 Koito Manufacturing Co Ltd filed Critical Koito Manufacturing Co Ltd
Priority to JP2023500798A priority Critical patent/JPWO2022176770A1/ja
Publication of WO2022176770A1 publication Critical patent/WO2022176770A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • 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
    • 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
    • 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
    • F21V31/03—Gas-tight or water-tight arrangements with provision for venting
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases

Definitions

  • the present invention relates to a lens unit for a lamp, a member for the lamp, and a lamp.
  • Patent Literature 1 introduces a lamp that includes a plurality of light sources, a plurality of lenses arranged corresponding to the respective light sources, and lens holding members that hold the plurality of lenses.
  • the present invention has been made in view of such circumstances, and provides a lighting fixture having a plurality of light sources and a plurality of lenses corresponding to the plurality of light sources, and capable of easily and accurately mounting the lenses. It is to provide a lens unit and lamp of
  • the present invention has been made in view of such circumstances, and it is an object of the present invention to provide a lighting member and a lighting fitting that allow the housing of the lighting fitting to be provided with a thin wall while providing the breathing hole and the explosion-proof hole in the lighting fitting.
  • a lens unit for a lamp includes: (1) A plurality of lenses for receiving light from a plurality of light sources, and a lens holding member for holding the lenses, wherein the lens holding member corresponds to a plurality of lens holes for mounting the plurality of lenses and the lens holes. and a lens positioning portion for determining the mounting position of the lens, wherein the positioning portion is provided on the peripheral edge portion of the lens hole.
  • the lens holding member includes a spacer that provides a predetermined gap between the lens holding member and the substrate on which the light source is mounted.
  • the lens holding member includes a substrate positioning portion that determines the position at which the lens holding member is attached to the substrate.
  • a lighting fixture of the present invention includes the lens unit described in (1) to (4).
  • the lamp member of the present invention comprises: (6) A lamp member made of a resin material to be mounted on a housing of the lamp, comprising: a fixing portion fixed to the housing; , a ventilation hole for passing air toward the inside and outside of the lamp chamber of the lamp.
  • the lamp member of the present invention includes a power terminal for supplying electric power to the lamp.
  • a waterproof membrane is provided at the end of the ventilation hole on the inside of the lamp chamber.
  • the fixed portion is provided with a positioning portion for determining the arrangement of the lamp member with respect to the housing.
  • a lamp of the present invention comprises the lamp member according to (6) to (9).
  • the lens holding member is provided with the lens positioning portion that determines the mounting position of the lens with respect to the lens hole at the peripheral edge of the lens hole, the position of each lens can be easily adjusted, saving time and effort when mounting the lens. It has the effect of being able to
  • the spacer is provided on the lens holding member, when the substrate is attached to the lens holding member, the space is automatically adjusted by the spacer, which saves the trouble of adjusting the space.
  • the lamp member made of a resin material is provided with a thick portion which is formed to be thicker than the housing, and the thick portion is provided with a ventilation hole acting as a breathing hole and an explosion-proof hole. , there is no need to increase the thickness of the housing, and the manufacturing cost of the lamp can be suppressed.
  • FIG. 1 is a perspective view of a lighting fixture showing an embodiment of the present invention
  • FIG. FIG. 2 is an exploded perspective view of the lamp of FIG. 1
  • FIG. 4A is a perspective view of the lens plate as seen from the front side of the lamp
  • FIG. 4B is a perspective view of the lens plate as seen from the rear side of the lamp.
  • 3A and 3B are enlarged views of the lens hole of the lens plate, as seen from the front side of the lamp, (a) before the lens is attached, and (b) after the lens is attached.
  • FIG. 1 is a perspective view of a lighting fixture showing an embodiment of the present invention
  • FIG. FIG. 8 is an exploded perspective view of the lamp of FIG. 7
  • FIG. 4A is a view of the terminal board as seen from the rear of the lamp
  • FIG. 4B is a view of the terminal board as seen from the front of the lamp.
  • 3 is an enlarged cross-sectional view of the terminal board taken along line BB.
  • FIG. FIG. 4 is an explanatory diagram for explaining how the terminal board is attached to the housing;
  • the lamp 1 shown in FIGS. 1 and 2 includes an LED 51 which is a light source, a substrate 5 on which the LED 51 is mounted, a lens unit 2 which projects the light of the LED 51 forward of the lamp 1, and a translucent lamp which forms a lamp chamber of the lamp 1. It comprises a cover 6 , a housing 7 , and a terminal board 8 on which power terminals for supplying power to the lamp 1 are mounted.
  • the lamp 1 can be used, for example, as a spotlight that is a laser optical system or as an aircraft lamp, but is not limited to this, and can be widely used as various lighting devices such as indoor and outdoor illumination lamps and vehicle lamps.
  • the lens unit 2 includes a plurality of lenses 3 into which light from the plurality of LEDs 51 respectively enters, and a lens plate 4 as a lens holding member that holds each of the plurality of lenses.
  • the light of the LED 51 incident on the lens 3 is totally reflected within the lens 3 and emitted forward of the lamp.
  • the lens plate 4 includes a plurality of lens holes 41 for mounting a plurality of lenses 3, pins 42 as lens positioning portions provided on the periphery of the lens holes 41, and a lens plate.
  • a spacer 43 that provides a predetermined distance d (see FIG. 6B) between the lens plate 4 and the substrate 5, and a boss 44 as a substrate positioning portion that determines the position where the lens plate 4 is attached to the substrate 5 are formed. .
  • the pin 42 and boss 44 are formed so that the optical axis of the lens 3 attached to the lens plate 4 is aligned with the optical axis of the LED 51. Also, the distance between the lens plate 4 and the substrate 5 is set so that the distance between the focal point of the lens 3 and the LED 51 is a desired distance.
  • the pins 42, spacers 43 and bosses 44 are integrally molded with the lens plate 4.
  • a resin suitable for laser welding the lens 3 can be used, and polycarbonate (PCB) is particularly suitable.
  • PCB polycarbonate
  • the color of the lens plate 4 a color having a high laser absorptivity such as black or gray, which is preferable for laser welding the lens 3, can be preferably selected.
  • the lens 3 is a total reflection lens made of resin, and has a light transmitting portion 31 that transmits light and a flange portion 32 that engages with the peripheral portion of the lens hole 41 .
  • a wide range of transparent resins can be used as the lens 3, but since the lens 3 is fixed to the lens plate 4 by laser welding, a PCB of the same type as the lens plate 4 and having a high laser transmittance can be selected.
  • FIG. 4(a) is an enlarged view of the lens hole 41 portion before the lens is attached
  • FIG. 4(b) is an enlarged view of the lens hole 41 portion after the lens is attached. All of them are views seen from the front side of the lamp.
  • the pins 42 are formed on the periphery of each lens hole 41 of the lens plate 4 .
  • the pin 42 is provided so as to surround the flange portion 32 while being in contact with the outer circumference of the flange portion 32 .
  • the pins 42 need only protrude to a height where they can be engaged with the flange portion 32 , and it is preferable that at least three pins are provided on the outer periphery of the flange portion 32 .
  • the lens 3 When attaching the lens 3 to the lens plate 4, the lens 3 is guided by the pin 42, and the position of the lens 3 is adjusted within a plane perpendicular to the mounting direction of the lens 3. It is also possible to provide the pin 42 in a substantially conical shape that tapers toward the tip so that the lens 3 can be guided more smoothly (see FIG. 6(b)).
  • the lens 3 attached to the lens plate 4 is fixed to the lens plate 4 via the flange portion 32 by laser welding. It is preferable that the welding portions 33 are provided at about 3 to 4 locations for each lens.
  • the distance d between the lens 3 and the substrate 5 is adjusted by a plurality of spacers 43 projecting toward the rear of the lamp 1. .
  • a plurality of bosses 44 protruding rearward of the lamp 1 are fitted into positioning holes 52 provided in the substrate 5, so that the positions of the bosses 44 are adjusted within a plane perpendicular to the mounting direction.
  • the position of the lens 3 with respect to the lens hole 41 can be easily adjusted.
  • the spacers 43 are provided on the lens plate 4 , the space between the lens unit 2 and the substrate 5 can be automatically adjusted by the spacers 43 when the substrate 5 is attached to the lens unit 2 .
  • the pins 42, spacers 43, and bosses 44 are integrally formed with the lens plate 4, these positions can be adjusted without separately preparing separate members. can be performed accurately.
  • the lamp 1 shown in FIGS. 7 and 8 includes an LED 51 which is a light source, a substrate 5 on which the LED 51 is mounted, a lens unit 2 which projects the light of the LED 51 forward of the lamp 1, and a translucent lamp which forms a lamp chamber of the lamp 1. It comprises a cover 6 and a housing 7, a partition wall 9 that divides the lamp chamber of the lamp 1 into a plurality of rooms, and a terminal board 8 on which power terminals 81 (see FIG. 9) for supplying power to the lamp 1 are mounted.
  • the lamp 1 can be used, for example, as a spotlight that is a laser optical system or as an aircraft lamp, but is not limited to this, and can be widely used as various lighting devices such as indoor and outdoor illumination lamps and vehicle lamps.
  • the lens unit 2 includes a plurality of lenses 3 into which light from the plurality of LEDs 51 respectively enters, and a lens plate 4 as a lens holding member that holds each of the plurality of lenses.
  • a resin suitable for laser welding the lens 3 can be used, and polycarbonate (PCB) is particularly suitable.
  • PCB polycarbonate
  • the color of the lens plate 4 a color having a high laser absorptance, such as black or gray, which is preferable for laser welding the lens 3, can be preferably selected.
  • the lens 3 is a total reflection lens made of resin.
  • the light of the LED 51 incident on the lens 3 is totally reflected within the lens 3 and emitted forward of the lamp.
  • a wide range of transparent resins can be used as the lens 3, but since the lens 3 is fixed to the lens plate 4 by laser welding, a PCB of the same type as the lens plate 4 and having a high laser transmittance can be selected.
  • the terminal board 8 is a lamp member to be attached to the housing 7.
  • the terminal board 8 includes a fixing portion 82 fixed to the housing 7 and a thick portion 83 thicker than the housing 7.
  • the surface of the terminal board 8 facing toward the inside of the lamp chamber is defined as an inner surface 8a
  • the surface facing toward the outside of the lamp chamber is defined as an outer surface 8b.
  • the terminal board 8 is made of, for example, a resin material with a high melting point.
  • the fixing part 82 has a screw hole 88 for inserting the screw 11 and a pin 86 as a positioning part for determining the arrangement of the terminal board 8 with respect to the housing 7 .
  • the thick portion 83 is thicker than the housing 7 and includes a power terminal 81, a holding portion 87 for holding the power terminal 81, and a ventilation hole 84 for passing air to the inside and outside of the lamp chamber of the lamp 1.
  • the holding portion 87 includes a boss 87a projecting from the inner side surface 8a of the terminal board 8 toward the partition wall 9, and the boss 87a functions as a spacer that maintains the gap between the partition wall 9 and the terminal board 8.
  • the fixing portion 82 and the thick portion 83 are integrally formed except for the power terminal 81 and the holding portion 87 .
  • the ventilation holes 84 are provided so as to penetrate the thick portion 83 from the inner side surface 8a toward the outer side surface 8b. It has an open opening 84b.
  • a waterproof film 85 is provided in the opening 84a.
  • the waterproof membrane 85 is preferably made of a material that allows gas to pass through but does not allow liquids and solids to pass through, and a member that can be easily attached to the inner surface 8a, such as a Gore (registered trademark) patch, can be selected.
  • the ventilation hole 84 functions as a breathing hole that allows air to pass through and an explosion-proof hole that prevents the lamp from exploding.
  • the size of the ventilation hole 84 is preferably a size that can prevent dust and water from entering from the outside while adjusting the atmospheric pressure in the lamp chamber.
  • the length of the ventilation hole 84 is preferably set to about 12.5 mm or more so that the fire generated in the lamp chamber does not leak out of the lamp chamber.
  • the housing 7 includes screw holes 73 through which the screws 11 are inserted, positioning holes 71 into which the pins 86 are fitted, and at least a portion of the terminal board 8 that is exposed toward the rear of the lamp 1.
  • a window portion 72 is provided to allow the The housing 7 is formed by die-casting or casting a metal material such as aluminum. Also, when the substrate 5 is assembled to the housing 7 , the outer peripheral portion of the substrate 5 abuts against the inner wall surface of the housing 7 , and the heat generated from the substrate 5 is radiated to the outside of the lamp 1 through the housing 7 . It is
  • the terminal board 1 is provided with the ventilation hole 84, and the ventilation hole 84 functions as a breathing hole and an explosion-proof hole. It is possible to reduce labor when molding the housing by die casting or casting, and reduce the manufacturing cost of the lamp. Further, when manufacturing the terminal board 8 which does not require the ventilation hole 84, the ventilation hole 84 is eliminated by closing the ventilation hole 84 portion of the resin mold with a cylindrical member having the same size as the ventilation hole 84. The terminal board 8 can also be easily formed.
  • the present invention is not limited to the above embodiments, and it is also possible to modify the shape and configuration of each part as appropriate without departing from the gist of the present invention.
  • vent hole 84 can be provided at another position on the thick portion 83, or the shape of the vent hole 84 can be tapered from the opening 84b toward the opening 84a.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
PCT/JP2022/005323 2021-02-17 2022-02-10 灯具用レンズユニット、灯具用部材、及び、灯具 Ceased WO2022176770A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2023500798A JPWO2022176770A1 (https=) 2021-02-17 2022-02-10

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JP2021-023299 2021-02-17
JP2021023299 2021-02-17
JP2021023300 2021-02-17
JP2021-023300 2021-02-17

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0831207A (ja) * 1994-07-15 1996-02-02 Koito Mfg Co Ltd 車輌用灯具
JP2011146271A (ja) * 2010-01-15 2011-07-28 Mitsubishi Electric Corp 照明器具
JP2012009256A (ja) * 2010-06-24 2012-01-12 Stanley Electric Co Ltd 車両用灯具、及び、車両用灯具製造方法
JP2012230984A (ja) * 2011-04-26 2012-11-22 Nitto Denko Corp 通気部材
WO2013175538A1 (ja) * 2012-05-24 2013-11-28 三菱電機株式会社 除湿装置、車載用灯具および光源点灯装置
JP2014154230A (ja) * 2013-02-05 2014-08-25 Toshiba Lighting & Technology Corp ランプ装置、発光装置および照明装置
JP2015153517A (ja) * 2014-02-12 2015-08-24 三菱電機株式会社 照明ランプ、透光性カバーの製造方法、及び照明装置
JP2016213008A (ja) * 2015-05-01 2016-12-15 株式会社小糸製作所 レーザ溶着構造体
JP2020035731A (ja) * 2018-08-27 2020-03-05 有限会社 ジャパンマグネット 直管型ｌｅｄ照明ランプ

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0831207A (ja) * 1994-07-15 1996-02-02 Koito Mfg Co Ltd 車輌用灯具
JP2011146271A (ja) * 2010-01-15 2011-07-28 Mitsubishi Electric Corp 照明器具
JP2012009256A (ja) * 2010-06-24 2012-01-12 Stanley Electric Co Ltd 車両用灯具、及び、車両用灯具製造方法
JP2012230984A (ja) * 2011-04-26 2012-11-22 Nitto Denko Corp 通気部材
WO2013175538A1 (ja) * 2012-05-24 2013-11-28 三菱電機株式会社 除湿装置、車載用灯具および光源点灯装置
JP2014154230A (ja) * 2013-02-05 2014-08-25 Toshiba Lighting & Technology Corp ランプ装置、発光装置および照明装置
JP2015153517A (ja) * 2014-02-12 2015-08-24 三菱電機株式会社 照明ランプ、透光性カバーの製造方法、及び照明装置
JP2016213008A (ja) * 2015-05-01 2016-12-15 株式会社小糸製作所 レーザ溶着構造体
JP2020035731A (ja) * 2018-08-27 2020-03-05 有限会社 ジャパンマグネット 直管型ｌｅｄ照明ランプ

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