WO2023190498A1 - Lampe de véhicule - Google Patents

Lampe de véhicule Download PDF

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Publication number
WO2023190498A1
WO2023190498A1 PCT/JP2023/012477 JP2023012477W WO2023190498A1 WO 2023190498 A1 WO2023190498 A1 WO 2023190498A1 JP 2023012477 W JP2023012477 W JP 2023012477W WO 2023190498 A1 WO2023190498 A1 WO 2023190498A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat sink
inner lens
light source
base surface
surface portion
Prior art date
Application number
PCT/JP2023/012477
Other languages
English (en)
Japanese (ja)
Inventor
諒平 岩熊
俊之 藤村
Original Assignee
株式会社小糸製作所
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 株式会社小糸製作所 filed Critical 株式会社小糸製作所
Priority to JP2024512555A priority Critical patent/JPWO2023190498A1/ja
Publication of WO2023190498A1 publication Critical patent/WO2023190498A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/50—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers
    • F21S41/55—Attachment thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
    • F21S41/657—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by moving light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/10—Protection of lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • 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
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/503—Cooling arrangements characterised by the adaptation for cooling of specific components of 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
    • 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
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F21W2102/10—Arrangement or contour of the emitted light

Definitions

  • the present invention relates to the technical field of a vehicle lamp capable of adjusting the optical axis of a light source mounted on a board attached to a heat sink.
  • Some vehicle lamps have a structure in which a board on which a light source is mounted is attached to a heat sink that has a function of emitting heat, and the heat generated when the light source is turned on is emitted by the heat sink (for example, Patent Document (see 1).
  • the heat sink is connected to the lamp housing via an optical axis adjustment mechanism having an adjusting screw, and the optical axis adjustment mechanism allows the heat sink to be tilted with respect to the lamp housing to adjust the optical axis of the light source.
  • an optical axis adjustment mechanism having an adjusting screw
  • the optical axis adjustment mechanism allows the heat sink to be tilted with respect to the lamp housing to adjust the optical axis of the light source.
  • the heat sink is generally made of a metal material to ensure high heat dissipation, but the adjusting screw is made of a resin material in order to reduce manufacturing costs.
  • the adjusting screw formed from a resin material is less rigid than the adjusting screw formed from a metal material. is likely to decrease. Therefore, if a large force is applied from the heat sink to the adjusting screw when vibration occurs in the heat sink while the vehicle is running, the adjusting screw may be deformed or damaged.
  • an object of the present invention is to reduce manufacturing costs and prevent the adjusting screw from being deformed or damaged.
  • a vehicular lamp according to the present invention includes a substrate on which a light source is mounted, a heat sink made of a metal material and having a base surface portion to which the substrate is attached, and which releases heat generated when the light source is turned on, and a resin material. and an adjusting screw provided in an optical axis adjustment mechanism for adjusting the optical axis of the light source, and a standing wall portion functioning as a reinforcing rib is provided at least on the outer peripheral portion of the heat sink.
  • the heat sink is reinforced by the standing wall portion, increasing the rigidity of the heat sink.
  • the heat sink is reinforced by the vertical wall portion, increasing the rigidity of the heat sink, improving the vibration resistance of the heat sink, making it difficult to apply large force to the adjusting screw formed of a resin material, and reducing manufacturing costs. This makes it possible to prevent the adjusting screw from deforming or breaking.
  • FIG. 2 is an exploded perspective view showing the internal structure of the vehicle lamp.
  • FIG. 2 is a perspective view showing the internal structure of the vehicle lamp.
  • FIG. 3 is a perspective view of a heat sink.
  • FIG. 5 is a perspective view of the heat sink as seen from a different direction from FIG. 4; It is a sectional view of a heat sink.
  • the vehicular lamp of the present invention can also be applied to a vehicular lamp attached to a vehicle other than a two-wheeled vehicle.
  • a vehicle lamp having the functions of a headlamp, a turn signal lamp, and a position lamp will be described as an example.
  • the vehicular lamp of the present invention only needs to function as at least a headlamp.
  • the vehicular lamp 1 includes a lamp housing 2 having a concave portion opened at the front and a cover 3 that closes the opening of the lamp housing 2 (see FIG. 1).
  • the lamp housing 2 and the cover 3 constitute a lamp outer casing 4.
  • the interior space of the lamp outer casing 4 is formed as a lamp chamber.
  • the lamp housing 2 is provided with a mounting protrusion (not shown) that protrudes forward.
  • An extension (not shown) is arranged in the light chamber.
  • a headlamp unit 5, a pair of turn signal lamp units 6, and a pair of position lamp units 7 are arranged in the light chamber (see FIGS. 2 and 3).
  • the headlamp unit 5 is arranged at the center in the left-right direction, the turn signal lamp units 6 are arranged on the left and right sides of the headlamp unit 5, and the position lamp units 7 are arranged on the left and right sides in front of the headlamp unit 5. .
  • a control board 8 disposed in the lamp chamber is attached to the lamp housing 2 so as to face in the front-rear direction.
  • the control board 8 has a function of controlling each part of the headlamp unit 5, turn signal lamp unit 6, and position lamp unit 7.
  • the headlamp unit 5 is arranged on the front side of the control board 8.
  • the headlamp unit 5 is constructed by attaching predetermined parts to a heat sink 9.
  • a first substrate 10, a first inner lens 11, a second substrate 12, a reflector 13, and a second inner lens 14 are attached to the heat sink 9.
  • a first light source 15 is mounted on the front surface of the first substrate 10, and a plurality of second light sources 16 are mounted on the front surface of the second substrate 12.
  • the turn signal lamp unit 6 has a turn substrate 17 and a turn inner lens 18, and a plurality of turn light sources 19 are mounted on the front surface of the turn substrate 17.
  • the turn signal lamp unit 6 is attached to the lamp housing 2 by screws or the like, and the turn light source 19 is covered from the front by the turn inner lens 18.
  • the light emitted from the turning light source 19 is controlled by the turning inner lens 18, passes through the turning inner lens 18 and the cover 3, and is irradiated to the outside.
  • the position lamp unit 7 has a position substrate 20, a bracket 21, and a position inner lens 22, and a plurality of position light sources 23 are mounted on the front surface of the position substrate 20.
  • a position substrate 20 is attached to the rear surface of a bracket 21, and a position inner lens 22 is attached to the front surface of the bracket 21.
  • the position lamp unit 7 is attached to the lamp housing 2 by screws or the like.
  • a plurality of light transmission holes 21a are formed in the bracket 21, through which light emitted from the position light source 23 is transmitted.
  • the positioning inner lens 22 is attached to the front surface of the bracket 21, the light transmission hole 21a is covered from the front by the positioning inner lens 22.
  • the light emitted from the position light source 23 is controlled by the position inner lens 22, passes through the position inner lens 22 and the cover 3, and is irradiated to the outside.
  • the heat sink 9 is composed of a main body 24 formed in a vertically elongated substantially rectangular shape facing in the front-rear direction and three connecting parts 25 protruding laterally from the main body 24 (see FIGS. 4 and 5).
  • the main body portion 24 has a base surface portion 26 facing in the front-rear direction and each portion protruding forward or backward from the base surface portion 26.
  • the main body portion 24 has a thickness T1 of 2 mm to 3 mm, for example, 2 mm (see FIG. 6).
  • the thickness T1 of the main body portion 24 is preferably 2 mm to 2.6 mm, more preferably 2 mm to 2.4 mm, and even more preferably 2 mm to 2.2 mm. .
  • a standing wall portion 27 that functions as a reinforcing rib is provided on the outer periphery of the heat sink 9 except for a part of the entire periphery (see FIGS. 4 and 5).
  • the vertical wall portion 27 has a thickness T2 of 2 mm to 3 mm, for example, 2 mm (see FIG. 6).
  • the thickness T2 of the vertical wall portion 27 is desirably made thinner, for example, 2 mm to 2.5 mm, and in order to increase the rigidity of the heat sink 9, it is made thicker. For example, it is desirable that the thickness be set to 2.5 mm to 3 mm.
  • the vertical wall portions 27 are provided on the front and rear sides of the heat sink 9 with each portion protruding forward or backward from the base surface portion 26 (see FIGS. 4 to 6).
  • the vertical wall portion 27 includes a first wall portion 27a that projects forward from both left and right ends of the base surface portion 26, and a second wall portion 27a that projects forward from the lower end of the base surface portion 26.
  • a wall portion 27b and a third wall portion 27c protruding forward from each outer peripheral portion of the connecting portion 25 are provided.
  • a fourth wall portion 27d protrudes rearward from both left and right ends of the base surface portion 26, and a fourth wall portion 27d protrudes rearward from the upper end portion of the base surface portion 26.
  • a sixth wall portion 27e and a sixth wall portion 27f projecting rearward from the lower end of the base surface portion 26 are provided.
  • An insertion hole 26a is formed in the center of the base surface portion 26 in the vertical direction.
  • the heat sink 9 has a seventh wall portion 27g as a standing wall portion 27 that projects forward from the front opening edge of the insertion hole 26a, and an eighth wall portion 27g that projects rearward from the rear opening edge of the insertion hole 26a or a portion around it.
  • a wall portion 27h is provided.
  • a mounting protrusion provided on the lamp housing 2 is inserted into the insertion hole 26a of the base surface portion 26 from the rear.
  • At least one bracket 21 in the position lamp unit 7 is attached to the tip of the attachment protrusion by screwing or the like.
  • a first mounting screw hole 28 is formed on the front side of the heat sink 9 near the upper end.
  • first positioning pins 29 are provided on both left and right sides of the first mounting screw hole 28, respectively, and protrude forward from the base surface portion 26.
  • a plurality of receiving protrusions 30, two first positioning pins 31, and two first mounting bosses 32 are provided on the front side of the heat sink 9, each protruding forward from the base surface portion 26.
  • two receiving protrusions 30 are provided at the upper end of the heat sink 9, separated from each other in the left and right directions, and one is provided at a position continuous with the seventh wall portion 27g.
  • the first positioning pin 31 and the first mounting boss 32 are provided spaced apart from each other in the left and right directions, and are located between the upper receiving protrusion 30 and the insertion hole 26a.
  • the heat sink 9 is provided with a plurality of first reinforcing protrusions 33 that are continuous with the first mounting bosses 32 and protrude forward from the base surface portion 26 .
  • a second mounting screw hole 34 is formed on the front side of the heat sink 9 near the lower end.
  • second positioning pins 35 are provided on the opposite side of the second mounting screw hole 34, each protruding forward from the base surface portion 26.
  • Two second positioning pins 36 and two second mounting bosses 37 are provided on the front side of the heat sink 9, each protruding forward from the base surface portion 26.
  • the second alignment pin 36 and the second attachment boss 37 are provided spaced apart from each other in the left and right directions, and are located between the second wall portion 27b and the insertion hole 26a.
  • the heat sink 9 is provided with a plurality of second reinforcing protrusions 38 that are continuous with the second attachment bosses 37 and protrude forward from the base surface portion 26 .
  • a plurality of radiation fins 39 are provided on the rear side of the heat sink 9.
  • the radiation fins 39 protrude rearward from the base surface portion 26, are spaced apart from each other vertically, and are arranged side by side in a vertically extending state.
  • the connecting portion 25 has, for example, two connecting holes 25a on the upper side and one on the lower side, which are penetrated from the front and back.
  • the heat sink 9 is connected to the lamp housing 2 by an optical axis adjustment mechanism 40 (see FIGS. 2 and 3).
  • the optical axis adjustment mechanism 40 includes two self-locking nuts 41, two adjusting screws 42, one pivot receiver 43, and one pivot shaft 44.
  • the self-locking nut 41 is supported while being inserted into the connecting hole 25a, and is tiltable relative to the connecting portion 25. A portion of the self-locking nut 41 is supported by the lamp housing 2 so as to be movable in the front-back direction.
  • the adjusting screw 42 is made of a resin material, and has a front half portion as a helical shaft portion 42a, a rear end portion as a supported portion 42b, and a rear end portion as an operating portion 42c.
  • the adjusting screw 42 has a threaded shaft portion 42a screwed into the self-locking nut 41, and a supported portion 42b supported by the lamp housing 2 in a rotatable but immovable state in the axial direction.
  • the operating portion 42c is located on the rear side of the lamp housing 2.
  • the pivot receiver 43 is connected to the connecting portion 25.
  • the pivot shaft 44 has a front end portion formed as a spherical portion 44a and a rear approximately half portion formed as a coupling portion 44b.
  • the pivot shaft 44 has a spherical portion 44a connected to the pivot receiver 43 in a relatively rotatable state, and a connecting portion 44b connected to the lamp housing 2.
  • optical axis adjustment mechanism 40 when one operating section 42c is rotated and one adjusting screw 42 is rotated in the direction around the axis, aiming adjustment (optical axis adjustment) in the vertical direction is performed, and the other operating section When the adjusting screw 42c is rotated and the other adjusting screw 42 is rotated in the direction around the axis, aiming adjustment (optical axis adjustment) in the left and right direction is performed.
  • the first substrate 10, first inner lens 11, and first light source 15 are for high beam
  • the second substrate 12, reflector 13, second inner lens 14, and second light source are for high beam
  • 16 is for low beam.
  • a first screw insertion hole 10a and two first positioning holes 10b are formed in the first substrate 10, and the first positioning holes 10b are located on both sides of the first screw insertion hole 10a.
  • first board 10 is positioned with respect to the heat sink 9 by inserting the first positioning pins 29 into the first positioning holes 10b, mounting screws (not shown) are inserted into the first screw insertion holes 10a. is attached to the heat sink 9 by being screwed into the first screw hole 28 for attachment.
  • Two first mounting holes 11a and two first alignment holes 11b are formed in the first inner lens 11, and the first mounting holes 11a and the first alignment holes 11b are arranged on the left and right sides, respectively. located at a distance.
  • the first inner lens 11 is inserted into the first mounting hole 11a in a state where the first alignment pin 31 is inserted into the first alignment hole 11b and positioned with respect to the heat sink 9.
  • the heat sink 9 is attached to the heat sink 9 by screwing a mounting screw (not shown) into the first mounting boss 32 .
  • the first inner lens 11 When the first inner lens 11 is attached to the heat sink 9, the first inner lens 11 is pressed against the receiving protrusion 30, and the position of the first inner lens 11 in the front-rear direction is determined. Furthermore, when the first inner lens 11 is attached to the heat sink 9, the first light source 15 mounted on the first substrate 10 is covered from the front by the first inner lens 11.
  • a second screw insertion hole 12a and two second positioning holes 12b are formed in the second board 12, and the second positioning hole 12b is located on the opposite side of the second screw insertion hole 12a. There is.
  • Two positioning insertion holes 13a are formed in the reflector 13, spaced apart from each other on the left and right.
  • the reflector 13 is formed with an arrangement notch 13b that is open downward.
  • the reflector 13 is positioned with respect to the heat sink 9 by inserting the second attachment bosses 37 into the positioning insertion holes 13a, respectively. Therefore, the second attachment boss 37 also functions as a positioning protrusion for positioning the reflector 13 with respect to the heat sink 9.
  • Two second mounting holes 14a and two second positioning holes 14b are formed in the second inner lens 14, and the second mounting holes 14a and the second positioning holes 14b are arranged on the left and right sides, respectively. located at a distance.
  • the second inner lens 14 is inserted into the second mounting hole 14a in a state where the second alignment pin 36 is inserted into the second alignment hole 14b and positioned with respect to the heat sink 9.
  • the heat sink 9 is attached to the heat sink 9 by screwing the second attachment boss 37 into the second attachment boss 37.
  • the second inner lens 14 is attached to the heat sink 9 in a state covering the reflector 13, and the reflector 13 is fastened together with the second inner lens 14 by a mounting screw screwed into the second mounting boss 37, so that the heat sink 9 can be attached to.
  • the second light source 16 is located in the placement notch 13b. Further, when the reflector 13 is attached to the heat sink 9, the reflector 13 is pressed against the second reinforcing protrusion 38, and the position of the reflector 13 in the front-rear direction is determined. Therefore, the second reinforcing protrusion 38 also functions as a receiving protrusion for receiving the reflector 13.
  • the second inner lens 14 When the second inner lens 14 is attached to the heat sink 9, the second inner lens 14 is pressed against a part of the reflector 13, and the position of the second inner lens 14 in the front-rear direction is determined. Furthermore, when the second inner lens 14 is attached to the heat sink 9, the second light source 16 mounted on the second substrate 12 is covered from the front by the second inner lens 14.
  • the light emitted from the first light source 15 is controlled by the first inner lens 11, transmitted through the first inner lens 11 and the cover 3, and directed to the outside. It is emitted as high beam light. Further, the light emitted from the second light source 16 is reflected by the reflector 13, controlled by the second inner lens 14, transmitted through the second inner lens 14 and the cover 3, and irradiated to the outside as low beam light. Ru.
  • the adjusting screw 42 is made of a resin material, and the standing wall portion 27 functioning as a reinforcing rib is provided at least on the outer peripheral portion of the heat sink 9.
  • the heat sink 9 is reinforced by the vertical wall portion 27 and the rigidity of the heat sink 9 is increased, so that the vibration resistance of the heat sink 9 is improved, and it becomes difficult to apply a large force to the adjusting screw 42 formed of a resin material. In addition to reducing costs, it is possible to prevent the adjusting screw 42 from being deformed or damaged.
  • the heat sink 9 is lightweight, and the force applied from the heat sink 9 to the adjusting screw 42 when vibration or the like occurs is suppressed. , it is possible to enhance the effect of preventing the adjusting screw 42 from being deformed or damaged.
  • the vibrations that occur tend to be large. Therefore, by using the heat sink 9 according to the present invention in the vehicle lamp 1 of a two-wheeled vehicle, manufacturing costs can be reduced. In addition, it is possible to obtain a particularly large effect of preventing the adjusting screw 42 from being deformed or damaged.
  • the rigidity of the heat sink 9 increases against deformation in both directions in the thickness direction of the base surface portion 26, and the vibration resistance of the heat sink 9 increases. This further increases the effect of preventing deformation and damage of the adjusting screw 42.
  • the heat sink 9 is provided with a first attachment boss 32 and a second attachment boss 37 that protrude from the base surface portion 26 and are used to attach the first inner lens 11 and the second inner lens 14, respectively.
  • a first reinforcing protrusion 33 and a second reinforcing protrusion 38 are provided that protrude from the surface portion 26 and are continuous to the first attachment boss 32 and the second attachment boss 37, respectively.
  • the first mounting boss 32, the second mounting boss 37, the first reinforcing protrusion 33, and the second reinforcing protrusion 38 all function as reinforcing ribs, further increasing the rigidity of the heat sink 9.
  • the vibration resistance of the adjusting screw 9 is further increased, and the effect of preventing the adjusting screw 42 from being deformed or damaged can be further enhanced.
  • the heat sink 9 is provided with a receiving protrusion 30 that protrudes from the base surface part 26 and comes into contact with the first inner lens 11.
  • the position of the first inner lens 11 in the front-rear direction is determined by the receiving protrusion 30, and the rigidity of the heat sink 9 is further increased.
  • the effect of preventing deformation and damage can be enhanced.
  • the heat sink 9 is provided with a second reinforcing protrusion 38 that also functions as a receiving protrusion for receiving the second inner lens 14 .
  • the rigidity of the heat sink 9 is further increased. Therefore, while ensuring good positional accuracy of the second inner lens 14, it is also possible to enhance the effect of preventing deformation and damage of the adjusting screw 42.
  • a standing wall portion 27 (third wall portion 27c) is provided at the opening edge of the insertion hole 26a in the lamp housing 2.
  • the standing wall part 27 is also provided on the opening edge of the insertion hole 26a, so that the rigidity of the heat sink 9 is further increased.
  • SYMBOLS 1 Vehicle lamp, 9... Heat sink, 10... First substrate, 11... First inner lens, 12... Second substrate, 14... Second inner lens, 15... First light source, 16... First 2 light source, 26... Base surface portion, 26a... Insertion hole, 27... Vertical wall portion, 32... First mounting boss, 33... First reinforcing protrusion, 37... Second mounting boss, 38... Second reinforcement Projection, 40... Optical axis adjustment mechanism, 42... Adjusting screw

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

La présente invention comprend : un substrat sur lequel une source de lumière est montée ; un dissipateur thermique qui comprend une partie surface de base qui est formée d'un matériau métallique et à laquelle le substrat est fixé, et qui libère la chaleur générée lorsque la source de lumière est allumée ; et une vis de réglage qui est disposée sur un mécanisme de réglage d'axe optique qui est formé d'un matériau de résine et qui est destiné à régler l'axe optique de la source de lumière. Au moins une section circonférentielle externe du dissipateur thermique comporte une paroi verticale qui fait office de nervure de renforcement.
PCT/JP2023/012477 2022-03-29 2023-03-28 Lampe de véhicule WO2023190498A1 (fr)

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Application Number Priority Date Filing Date Title
JP2024512555A JPWO2023190498A1 (fr) 2022-03-29 2023-03-28

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022053976 2022-03-29
JP2022-053976 2022-03-29

Publications (1)

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WO2023190498A1 true WO2023190498A1 (fr) 2023-10-05

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019197745A (ja) * 2017-03-08 2019-11-14 株式会社小糸製作所 車両用灯具
JP2019212635A (ja) * 2019-08-22 2019-12-12 株式会社小糸製作所 車両用灯具

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019197745A (ja) * 2017-03-08 2019-11-14 株式会社小糸製作所 車両用灯具
JP2019212635A (ja) * 2019-08-22 2019-12-12 株式会社小糸製作所 車両用灯具

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