WO2020203120A1 - Unité d'éclairage de véhicule - Google Patents

Unité d'éclairage de véhicule Download PDF

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Publication number
WO2020203120A1
WO2020203120A1 PCT/JP2020/010523 JP2020010523W WO2020203120A1 WO 2020203120 A1 WO2020203120 A1 WO 2020203120A1 JP 2020010523 W JP2020010523 W JP 2020010523W WO 2020203120 A1 WO2020203120 A1 WO 2020203120A1
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WO
WIPO (PCT)
Prior art keywords
light source
planar light
source body
pressing
vehicle lamp
Prior art date
Application number
PCT/JP2020/010523
Other languages
English (en)
Japanese (ja)
Inventor
新 竹田
徹 伊東
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 CN202080025780.9A priority Critical patent/CN113631858B/zh
Priority to JP2021511338A priority patent/JPWO2020203120A1/ja
Publication of WO2020203120A1 publication Critical patent/WO2020203120A1/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
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/50—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F21S43/145—Surface emitters, e.g. organic light emitting diodes [OLED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/19—Attachment of light sources or lamp holders

Definitions

  • the present invention relates to a technical field of a vehicle lamp having a planar light source body.
  • planar light source such as an organic EL panel (organic electroluminescence panel) as a light source (see, for example, Patent Document 1).
  • organic EL panel organic electroluminescence panel
  • the planar light source body also has a type in which a light emitting diode (LED) is sandwiched by a conductive layer or a film to have flexibility.
  • LED light emitting diode
  • planar light sources are self-luminous light sources that emit surface light, and there are also types with flexibility. In recent years, the development of vehicle lamps using these planar light sources has been progressing.
  • Such a planar light source body is often arranged in a bent state in a lamp chamber, which is an internal space formed by a lamp housing and a cover.
  • planar light source body when the planar light source body is arranged in a bent state, for example, when it is bent in a direction approaching the cover, it is bent.
  • the portion protruding toward the cover side may interfere with the cover, making it impossible to secure an appropriate arrangement state of the planar light source body.
  • the emission area is greatly reduced, and a sufficient amount of light is secured for the light emitted from the vehicle lighting equipment. May not be possible.
  • an object of the present invention is to secure an appropriate arrangement state of the planar light source body without significantly reducing the amount of light emitted from the planar light source body.
  • the vehicle lamp according to the present invention has a lamp housing having an opening and a cover for closing the opening, and a lamp outer housing having an internal space formed as a lamp chamber and a lamp outer casing arranged in the lamp chamber and bent. It is provided with a possible self-luminous planar light source body, and the planar light source body is arranged in a bent state in the lamp chamber, and the planar light source body is long in a direction orthogonal to both the thickness direction and the bending width direction.
  • the planar light source body is defined as the vertical direction, and the width is maximized or minimized at one end in the longitudinal direction.
  • planar light source body As a result, it becomes difficult for the planar light source body to interfere with the cover when it is bent in a predetermined bending direction, and the width of the portion that emits light in the length direction is different.
  • the planar light source body is arranged in a state where the intermediate portion in the length direction is bent toward the cover, and the planar light source body is long. It is desirable that the width of one end in the longitudinal direction be maximized and the intermediate width in the longitudinal direction be minimized.
  • the planar light source body is arranged with the intermediate portion having the minimum width close to the cover, so that the intermediate portion and the cover are less likely to interfere with each other.
  • the planar light source body is arranged in a state where the intermediate portion in the length direction is bent in the direction away from the cover, and the planar light source body is arranged. It is desirable that the width of one end in the length direction is minimized and the width in the middle in the length direction is maximized.
  • planar light source body is arranged with the end portion in the length direction in which the width is minimized close to the cover, so that this end portion and the cover are unlikely to interfere with each other.
  • the planar light source body is provided with a light emitting portion that emits light and a non-light emitting portion that does not emit light, and the non-light emitting portion is the planar light source. It is desirable to provide it in the part of the body where the flexion rate is maximized.
  • the light emitting part is less likely to be loaded due to bending.
  • a plurality of the planar light sources are arranged apart from each other in the front-rear direction, and the plurality of planar light sources are displaced in the left-right direction. It is desirable that it is located inside the vehicle in the left-right direction as it goes in the direction of light emission from the body.
  • the light emitted from the plurality of planar light sources toward the rear is less likely to be blocked by the planar light sources located on the rear side.
  • another vehicle lamp according to the present invention has a light emitting portion that emits light and a non-light emitting portion located at least on the outer peripheral side of the light emitting portion, and is formed to have the same shape and the same size.
  • a fixed base having a plurality of flexible planar light source bodies and a plurality of fixing portions for fixing the plurality of planar light source bodies is provided, and a part of the light emitting portion is shielded by the fixing portion.
  • the areas of the light emitting portions shielded by the fixed portions are different.
  • At least two planar light source bodies formed in the same shape and the same size are arranged in a state where the area of the light emitting portion shielded by the fixed portion is different.
  • planar light source body is fixed to the fixed base by being inserted into the slit.
  • a holding portion for pressing a part of the planar light source body is provided, and the outer peripheral portion of the planar light source body is composed of a plurality of side portions, and at least. It is desirable that one said side portion is fixed by the fixing portion and at least one other said side portion is pressed by the holding portion.
  • the planar light source body is arranged in a state where at least one side portion is fixed by the fixed portion and the other at least one side portion is pressed by the first pressing portion and the second pressing portion.
  • a plurality of holding bases having the holding portions are provided, and the side portions are sandwiched from both sides by the holding portions provided on the holding bases. It is desirable to hold it in a state of being pressed.
  • planar light source body is held by the fixed base and the plurality of holding bases.
  • the side portion is pressed by the pressing portion in a bent state of the planar light source body.
  • planar light source body is held by the fixed base and the pressing base in a bent state.
  • a twelfth, another vehicle lamp according to the present invention includes a planar light source body that has an electrode portion and is flexible and self-luminous, a conductive film connected to the electrode portion, and the conductive film.
  • a flexible printed wiring board connected from the opposite side of the planar light source body and supplying an electric current to the planar light source body via the conductive film is provided, and the planar light source body, the conductive film, and the flexible print are provided.
  • a first pressing portion in which at least a part is bent while the wiring board is connected, and at least a bent portion of the planar light source body, the conductive film, and the flexible printed wiring board is sandwiched from both sides. And a second holding portion is provided.
  • the bent portion of the planar light source body, the conductive film, and the flexible printed wiring board is pressed by the first pressing portion and the second pressing portion in a state of being sandwiched from both sides, and in the bent portion.
  • the conductive film and the flexible printed wiring board are less likely to peel off from the planar light source body.
  • a straight portion and a curved portion are provided on the outer peripheral portion of the planar light source body, and the straight portion is the first pressing portion and the second pressing portion. It is desirable to be held down by the part.
  • the outer peripheral portion of the planar light source body is composed of a plurality of side portions, and one said side portion is the first holding portion and the second holding portion. It is desirable to be pressed by the pressing part.
  • the entire circumference of the planar light source body is not pressed, so that the first pressing portion and the second pressing portion can be made small, and the space for arranging the first pressing portion and the second pressing portion is increased. It becomes smaller.
  • the planar light source body is formed in a shape having a longitudinal direction and a lateral direction, and the side portion extending in the longitudinal direction of the planar light source body is said. It is desirable to be pressed by the first pressing portion and the second pressing portion.
  • the length of the portion pressed by the first pressing portion and the second pressing portion in the planar light source body becomes long.
  • the planar light source body is arranged in a bent state, and the conductivity is applied to a portion other than the portion having the maximum bending ratio of the planar light source body. It is desirable that a sex film be connected.
  • the conductive film is connected to the portion other than the portion having the maximum bending ratio of the planar light source body, and the flexible printed wiring board is connected to the conductive film. Therefore, the conductive film and the flexible printed wiring board are connected. Is unlikely to peel off from the planar light source body.
  • planar light source body when the planar light source body is bent in a predetermined bending direction, it is difficult to interfere with the cover and the width of the portion that emits light is different in the length direction, so that the planar light source body is emitted from the planar light source body. It is possible to secure an appropriate arrangement state of the planar light source body without significantly reducing the amount of light.
  • FIG. 2 to 14 show an embodiment of the vehicle lamp of the present invention, and this figure is a perspective view of the vehicle lamp showing the cover and the lamp unit separated from the lamp housing. It is an exploded perspective view of a lamp unit. It is a rear view of a planar light source body.
  • FIG. 5 is an enlarged plan view showing a state in which a flexible printed wiring board is connected to a planar light source body via a conductive film. It is a rear view which shows the arrangement state of the planar light source body. It is a side view which shows the arrangement state of the planar light source body. It is a top view which shows the arrangement state of the planar light source body. It is a perspective view which shows the state before the planar light source body is pressed by a pressing part.
  • the vehicle lamp of the present invention is applied to a vehicle lamp such as a tail lamp arranged at the rear end of the vehicle body.
  • vehicle lamp such as a tail lamp arranged at the rear end of the vehicle body.
  • the present invention includes various types of head lamps, tail lamps, clearance lamps, turn signal lamps, stop lamps, daytime running lamps, cornering lamps, hazard lamps, position lamps, back lamps, fog lamps, or combination lamps which are combinations thereof. It can be widely applied to the lighting equipment for vehicles.
  • the vehicle lighting fixtures are arranged at the rear end of the vehicle body to indicate the front-rear, up-down, left-right directions.
  • the front-back, up-down, left-right directions shown below are for convenience of explanation, and the practice of the present invention is not limited to these directions.
  • the organic electroluminescence panel also includes an organic electroluminescence display for displaying characters, figures, and the like.
  • the vehicle lamps 1 and 1 are attached and arranged at the left and right ends of the rear end of the vehicle body, for example.
  • the vehicle lamp 1 includes, for example, a lamp housing 2 opened rearward and sideways and a transparent cover 3 that closes the rear opening 2a of the lamp housing 2 (see FIGS. 1 and 2).
  • the lamp housing 2 may be formed in a shape that is open only to the rear.
  • the lamp housing 2 and the cover 3 form a lamp outer housing 4, and the internal space of the lamp outer housing 4 is formed as a lamp chamber 5.
  • the lamp housing 2 is opened inward in the left-right direction of the vehicle, and this inner opening is formed as a side opening 2b.
  • the lamp housing 2 has a bottom surface portion 6, a front surface portion 7, a top surface portion 8, and a circumferential portion 9, the bottom surface portion 6 and the top surface portion 8 are positioned vertically facing each other, and the upper and lower ends of the front surface portion 7 are vertically respectively. It is continuous with the front end portion of the surface portion 8 and the front end portion of the bottom surface portion 6.
  • the circumferential portion 9 is formed in a U-shape that is opened on one side in the left-right direction, and each portion is continuous with each end portion of the bottom surface portion 6, the front surface portion 7, and the top surface portion 8.
  • the lamp unit 11 is arranged in the lamp chamber 5.
  • the lamp unit 11 has an extension 12, an inner lens 13, a first planar light source bodies 14, 14, 14 and a second planar light source body 15.
  • the extension 12 has a fixed base 16, a top base 17, a front base 18, and holding bases 19, 19, and 19.
  • the fixed base 16 and the front surface base 18 may be integrally formed
  • the top surface base 17 and the front surface base 18 may be integrally formed
  • the fixed base 16 and the top surface base 17 may be integrally formed
  • the front base 18 may be integrally formed.
  • the fixed base 16 is formed in a plate shape facing in the vertical direction, and is formed in a shape one size smaller than the bottom surface portion 6 of the lamp housing 2.
  • Fixed portions 20, 20, 20 are formed on the fixed base 16 so as to be separated from each other in the front-rear direction.
  • the fixed portion 20 has a slit 20a extending substantially left and right and penetrating vertically, and is a portion including the slit 20a and the front and rear portions of the slit 20a.
  • the top surface base 17 is formed in a shape slightly smaller than the top surface portion 8 of the lamp housing 2.
  • the top surface base 17 is positioned so as to face the fixed base 16 in the vertical direction.
  • the front base 18 is formed in a shape slightly smaller than the front portion 7 of the lamp housing 2.
  • the upper and lower ends of the front base 18 are continuous with the front end of the top base 17 and the front end of the fixed base 16, respectively.
  • the pressing base 19 has a plate-shaped wall surface portion 21 facing substantially left and right, and a first pressing portion 22 and a second pressing portion 23 protruding in opposite directions from both front and rear ends of the wall surface portion 21, respectively. are doing.
  • the first pressing portion 22 is projected outward from the wall surface portion 21 in the left-right direction of the vehicle
  • the second pressing portion 23 is projected inward from the wall surface portion 21 in the left-right direction of the vehicle.
  • the first pressing portion 22 and the second pressing portion 23 are formed in substantially the same shape as a curved surface as a whole, and the substantially central portion in the vertical direction is located at the rearmost side and is formed in a rearward convex shape. The part is located on the front side.
  • the width of the first pressing portion 22 in the left-right direction is smaller than the width of the second pressing portion 23 in the left-right direction.
  • the pressing bases 19, 19 and 19 the pressing base 19 located on the front side is the pressing base 19A
  • the pressing base 19 located second from the front is the pressing base 19B
  • the pressing base 19 is located on the rearmost side.
  • the pressing base 19 to be pressed is a pressing base 19C, and the pressing base 19C is not provided with a second pressing portion 23.
  • the inner lens 13 is formed by applying metal vapor deposition to the surface of a transparent material, and has a lens portion 24 that faces substantially left and right, and a holding portion 25 that projects laterally from the rear end portion of the lens portion 24. are doing.
  • the inner lens 13 has a pressing portion 25, and also functions as a pressing base for pressing the first planar light source body 14.
  • the pressing portion 25 is functionally provided as a second pressing portion like the second pressing portion 23, and the protruding direction from the lens portion 24 is the first pressing portion 22 and the second pressing portion in the pressing base 19.
  • the direction of protrusion from the wall surface portion 21 of 23 is the same.
  • a diffusion step (not shown) is formed on at least one surface of the lens portion 24 in the thickness direction.
  • Metal vapor deposition is applied to the inner lens 13 except for a part.
  • the portion of the inner lens 13 that has not been metal-deposited is provided as a light transmitting portion 13a, and the light transmitting portion 13a is located, for example, at the central portion in the vertical direction.
  • the inner lens 13 is attached to the extension 12, for example, and is arranged at a position on the front end side in the light chamber 5.
  • the first planar light source bodies 14, 14, 14 are formed to have the same size and the same shape.
  • the first planar light source body 14 is, for example, an organic EL panel (organic electroluminescence panel), and is provided as a bendable self-luminous light source.
  • the first planar light source body 14 is formed in a vertically long and vertically symmetrical shape, the vertical direction is the longitudinal direction (longitudinal direction), the horizontal direction is the lateral direction (width direction), and the front-rear direction is the thickness direction. (See Fig. 3).
  • the upper edge 26 and the lower edge 27 are formed in a straight line extending horizontally, and the inner side edge of the vehicle extends vertically as the first side edge 28 in the left-right direction.
  • the outer side edge of the vehicle is formed as a second side edge 29 in the left-right direction, including a portion inclined in the vertical direction.
  • the second side edge 29 is formed as gentle end side curved portions 29a, 29a that approach the first side edge 28 as the upper and lower end portions approach each other in the vertical direction, and the central portion in the vertical direction is the first. It is formed as a central curved portion 29b formed in a convex arc shape on the side edge 28 side of the above, and the first portion as the portions between the end curved portions 29a and 29a and the central curved portion 29b approach each other in the vertical direction. It is formed as inclined portions 29c and 29c approaching the side edge 28. Therefore, the width of the first planar light source body 14 is maximized at the upper edge 26 and the lower edge 27 and minimized at the center in the vertical direction. The width of the first planar light source body 14 may be maximized at either the upper edge 26 or the lower edge 27.
  • the first planar light source body 14 is formed in the above-mentioned shape, and the outer peripheral portion is formed by four side portions. These four side portions are formed as an upper side portion 30, a lower side portion 31, a first side side portion 32, and a second side side portion 33, and the upper side portion 30 is a portion including an upper edge 26, and the lower side portion 31 is a portion.
  • the portion including the lower edge 27, the first side edge portion 32 is the portion including the first side edge 28, and the second side edge portion 33 is the portion including the second side edge 29.
  • the first planar light source body 14 is composed of light emitting units 34 and 34 and non-light emitting units 35, and the light emitting units 34 and 34 are vertically separated from each other.
  • the non-light emitting portion 35 is located on the outer peripheral side of the light emitting portions 34, 34, and extends left and right between the frame-shaped outer portion 35a corresponding to the outer peripheral portion of the first planar light source body 14 and the light emitting portions 34, 34. It consists of a positioned boundary portion 35b.
  • the non-light emitting portion 35 of the first planar light source body 14 is provided with electrode portions 36, 36 for supplying current to the light emitting portions 34, 34, respectively (see FIGS. 3 and 4).
  • the electrode portions 36, 36 are vertically separated from each other at a portion other than the central portion in the vertical direction of the first side side portion 32.
  • a conductive film 37 is connected to the electrode portion 36, and one end of a flexible printed wiring board 38 is connected to the conductive film 37 (see FIG. 4).
  • the flexible printed wiring board 38 is connected to a power supply circuit (not shown), and a current is supplied to the light emitting portion 34 from the power supply circuit via the flexible printed wiring board 38, the conductive film 37, and the electrode portion 36.
  • the conductive film 37 is formed into a film by mixing fine metal particles with a thermosetting resin, and is also called an anisotropic conductive film (ACF). Generally, the electrode portion 36 is heated by a heater or the like. Connected by crimping.
  • ACF anisotropic conductive film
  • the second planar light source body 15 is, for example, an organic EL panel, and is provided as a bendable self-luminous light source (see FIG. 2).
  • the second planar light source body 15 is formed in a horizontally long substantially rectangular shape, a portion excluding the outer peripheral portion is formed as a light emitting portion 39, and the outer peripheral portion is formed as a non-light emitting portion 40.
  • the second planar light source body 15 is attached to, for example, the inner surface of the inner lens 13.
  • a flexible printed wiring board (not shown) is connected to the second planar light source body 15 via a conductive film (not shown), and a current is supplied via the flexible printed wiring board and the conductive film.
  • the emitted light is diffused by the diffusion step of the inner lens 13, transmitted through the light transmitting portion 13a, and directed to the outside through the cover 3. Is irradiated.
  • the light emitted from the light emitting unit 39 is shielded by a portion other than the light transmitting portion 13a of the inner lens 13, and only the light transmitted through the light transmitting portion 13a is irradiated to the outside through the cover 3. Therefore, by setting the portion where the metal vapor deposition is applied to the inner lens 13 to a desired range, the light transmitting portion 13a can be formed in a desired range and shape, and is emitted from the second planar light source body 15. It is possible to improve the degree of freedom of light distribution control related to the light.
  • the first planar light source bodies 14, 14, 14 are bent in part or in whole so that the central portion in the vertical direction is convex rearward, and the bending width direction is in the left-right direction. They are arranged apart from each other in the front-rear direction (see FIGS. 5 to 7).
  • the bending width direction is a direction connecting one end and the other end of the bent portion (bent portion).
  • the first planar light source bodies 14, 14, 14 are arranged in a state of being arranged in the light chamber 5 in a state of being displaced in the left-right direction, and light is emitted from the first planar light source bodies 14, 14, 14. As it goes in the direction (rear), it is positioned inside the vehicle in the left-right direction. Therefore, the first planar light source body 14 located on the front side is located on the outermost side in the left-right direction of the vehicle, and the first planar light source body 14 located on the rearmost side is the most on the left-right direction of the vehicle. It is located inside.
  • the lower side portion 31 is inserted into the frontmost slit 20a of the fixed base 16 and fixed to the fixed portion 20, and the first side side portion 32 is an inner lens. It is held in a state of being sandwiched from the front and rear by the holding portion 25 of the pressing portion 13 and the first pressing portion 22 of the pressing base 19A, and is arranged in the light chamber 5 in a state of being held by the extension 12 and the inner lens 13.
  • the inner lens 13 is attached to the fixed base 16 and the lower side portion 31 is fixed to the fixed portion 20.
  • the first side side portion 32 is addressed to the holding portion 25 of the inner lens 13 (see FIG. 8).
  • the pressing base 19A is moved in the direction of approaching the inner lens 13, so that the first side side portion 32 is sandwiched and pressed by the pressing portion 25 and the first pressing portion 22.
  • the pressing base 19A is attached to the fixed base 16 by an appropriate means such as screwing. ..
  • the inner lens 13 has a pressing portion 25, and has a pressing base that presses the first planar light source body 14 in addition to the function of controlling the light emitted from the second planar light source body 15. Also works as. Therefore, it is not necessary to provide the pressing portion 25 on the dedicated pressing base, and it is possible to reduce the manufacturing cost of the vehicle lamp 1 and simplify the structure by reducing the number of parts.
  • the lower side portion 31 is inserted into the second slit 20a from the front in the fixed base 16 and fixed to the fixed portion 20, and the first side side portion is fixed.
  • 32 is pressed by the second pressing portion 23 of the pressing base 19A and the first pressing portion 22 of the pressing base 19B from the front and back, and is arranged in the light room 5 while being held by the extension 12. ..
  • the inner lens 13 and the holding base 19A are attached to the fixed base 16, and the lower side portion 31 is fixed to the fixed portion 20.
  • the first side side portion 32 is addressed to the second pressing portion 23 of the pressing base 19A.
  • the pressing base 19B is moved in the direction of approaching the pressing base 19A, so that the first side side portion 32 is sandwiched and pressed by the second pressing portion 23 and the first pressing portion 22.
  • the pressing base 19B is screwed to the fixed base 16 or the like. Attached by.
  • the lower side portion 31 is inserted into the rearmost slit 20a of the fixed base 16 and fixed to the fixed portion 20, and the first side side portion 32 is fixed. It is pressed by the second pressing portion 23 of the pressing base 19B and the first pressing portion 22 of the pressing base 19C in a state of being sandwiched from the front and back, and is arranged in the light room 5 in a state of being held by the extension 12.
  • the inner lens 13, the pressing base 19A, and the pressing base 19B are attached to the fixed base 16, and the lower side portion 31 is the fixed portion 20.
  • the first side side portion 32 is addressed to the second pressing portion 23 of the pressing base 19B in a state of being fixed to.
  • the pressing base 19C is moved in the direction of approaching the pressing base 19B, so that the first side side portion 32 is sandwiched and pressed by the second pressing portion 23 and the first pressing portion 22.
  • the pressing base 19C is screwed to the fixed base 16 or the like as an appropriate means. Attached by.
  • the top surface base 17 and the front surface base 17 are held.
  • the lamp unit 11 is configured by attaching the 18 to a predetermined portion such as the holding base 19.
  • the lamp unit 11 is inserted into the lamp housing 2 through the side opening 2b, and is detachably attached to the lamp housing 2 (see FIG. 9).
  • the lamp unit 11 is inserted from the side opening 2b in a state where the upper surface of the fixed base 16 in the extension 12 is positioned at substantially the same height as the upper surface of the bottom surface portion 6 in the lamp housing 2. Therefore, even when the lower side portion 31 of the first planar light source body 14 inserted into the slit 20a of the fixed base 16 projects downward from the fixed base 16, the lower side portion 31 is on the bottom surface portion 6. Since it is located in the formed escape space 10, the lower side portion 31 does not come into contact with the bottom surface portion 6. As a result, the lamp unit 11 can be smoothly and appropriately inserted into the lamp chamber 5, and the position shift of the first planar light source body 14 with respect to the extension 12 can be prevented.
  • the lamp unit 11 configured by holding the first planar light source bodies 14, 14, 14 and the like on the extension 12 and the like is detachably attached to the lamp housing 2, for example, the first surface.
  • the lamp unit 11 can be removed from the lamp housing 2 for inspection and repair, and maintainability is improved. Can be planned. Further, even when a defect occurs in a part of the lamp unit 11, the lamp unit 11 can be easily replaced, and the maintainability can be further improved.
  • the lamp housing 2 is attached with the cover 3 so as to cover the rear opening 2a, and the lamp housing 2 is attached with the lamp unit 11 and the cover 3, whereby the vehicle lamp 1 is configured.
  • the first planar light source body 14 is bent so that the central portion in the vertical direction is convex rearward, and the central portion in the vertical direction is bent.
  • the flexion rate is maximized.
  • the electrode portion 36 is not provided at the central portion of the first planar light source body 14 in the vertical direction, and the conductive film 37 and the flexible printed wiring board 38 are not connected (see FIG. 10). Therefore, the conductive film 37 and the flexible printed wiring board 38 are not connected to the portion of the first planar light source body 14 where the bending rate is maximized.
  • the portion of the first planar light source body 14 having the maximum bending rate is provided at the boundary portion 35b of the non-light emitting portion 35.
  • the first planar light source body 14 is bent so that the central portion in the vertical direction is convex rearward, and the central portion of the second side side portion 33 in the vertical direction approaches the cover 3. Positioned (see Figure 7).
  • the first planar light source body 14 is fixed by the fixed portion 20 of the fixed base 16 in a state of being arranged in the light chamber 5, and the light emitting portion 34 is formed by inserting a part of the light emitting portion 34 into the slit 20a. Is partially shielded by the fixing portion 20 (see FIGS. 11 and 12).
  • the areas of 34 are in different states. Therefore, the areas of the light emitting portions 34, 34, 34 exposed in the three first planar light source bodies 14, 14, 14 are different, and the light emitting portions 34, 34, 34 substantially function as the exit surface. The areas are different.
  • the first side side portion 32 is sandwiched between the first pressing portion 22 and the second pressing portion 23 or the pressing portion 25. It is pressed, and a part of the light emitting unit 34 is shielded from the rear by the first pressing unit 22.
  • the area of is different. Therefore, the areas of the light emitting portions 34, 34, 34 exposed in the three first planar light source bodies 14, 14, 14 are different, and the light emitting portions 34, 34, 34 substantially function as the exit surface. The areas are different.
  • the first side side portion 32 is fixed to the fixing portion 20 in a state of being inclined at a predetermined angle with respect to the vertical direction, for example, in a direction of about 1 degree.
  • the extension 12 or the extension 12 and the inner lens 13 are held and arranged in the light chamber 5 (see FIG. 11).
  • the first planar light source body 14 is fixed to the fixed portion 20 in a state where it is not inclined in the vertical direction, and is also pressed by the first pressing portion 22 and the second pressing portion 23 or the pressing portion 25.
  • a part of the light emitting portion 34 may be shielded by the fixing portion 20 and may be shielded by the first pressing portion 22 (see FIG. 12).
  • a conductive film is connected to the electrode portion of the planar light source body, a flexible printed wiring board is connected to the conductive film from the opposite side of the planar light source body, and a planar light source is connected to the conductive film from the flexible printed wiring board via the conductive film. Some are configured to supply current to the body.
  • the conductive film is formed into a film by mixing fine metal particles with a thermosetting resin, and is also called an Anisotropic Conductive Film (ACF).
  • the conductive film is generally connected to the electrode portion by thermal pressure bonding by a heater or the like, has conductivity in the vertical direction, and exhibits anisotropy by maintaining insulation in the horizontal direction, and exhibits anisotropy in the horizontal direction. Even if the distance between the electrode terminals is narrow, a short circuit does not occur, and there is an advantage that a good connection state is ensured.
  • the conductive film and the flexible printed wiring board may be peeled off from the planar light source body due to vibration or impact generated when the vehicle is running.
  • the vehicle lamp 1 at least a part thereof is bent in a state where the first planar light source body 14, the conductive film 37, and the flexible printed wiring board 38 are connected, and the first A first pressing portion 22 and a second pressing portion 23, 25 for pressing at least a bent portion of the planar light source body 14, the conductive film 37, and the flexible printed wiring board 38 from both sides are provided. There is.
  • the conductive film 37 and the flexible printed wiring board 38 are less likely to be peeled off from the first planar light source body 14 at the bent portion, so that the conductive film 37 and the flexible printed wiring board 38 have a first planar shape. It is possible to prevent peeling from the light source body 14 and secure a stable supply state of the current from the flexible printed wiring board 38 to the first planar light source body 14.
  • first side side portion 32 which is a straight portion and a second side side portion 33 having a curved portion are provided on the outer peripheral portion of the first planar light source body 14, and the first side which is a straight portion is provided.
  • the side portion 32 is pressed by the first pressing portion 22 and the second pressing portions 23 and 25.
  • first pressing portion 22 and the second pressing portions 23 and 25 can be formed into a simple shape according to the shape of the straight portion, the first pressing portion 22 and the second pressing portion 22 and the second pressing portion are formed. 23 and 25 can be easily formed, and the manufacturing cost of the vehicle lamp 1 can be reduced.
  • the outer peripheral portion of the first planar light source body 14 is composed of an upper side portion 30, a lower side portion 31, a first side side portion 32, and a second side side portion 33, which are a plurality of side portions, and one side.
  • the first side side portion 32 which is a portion, is pressed by the first pressing portion 22 and the second pressing portions 23, 25.
  • the first pressing portion 22 and the second pressing portions 23, 25 can be made small, and the first pressing portion 1 in the vehicle lamp 1 can be used.
  • the space for arranging the pressing portion 22 and the second pressing portions 23 and 25 is reduced, and the size of the vehicle lamp 1 can be reduced.
  • first side side portion 32 which is a side portion extending in the longitudinal direction of the first planar light source body 14, is pressed by the first pressing portion 22 and the second pressing portions 23, 25.
  • the length of the portion pressed by the first pressing portion 22 and the second pressing portions 23, 25 is long, so that the arrangement state of the first planar light source body 14 is stable. Can be achieved.
  • the conductive film 37 which is arranged in a bent state in the light chamber 5 of the first planar light source body 14, and is formed on a portion other than the portion where the maximum bending ratio of the first planar light source body 14 is set. 37 is connected.
  • the conductive films 37, 37 are connected to the portion other than the portion of the first planar light source body 14 having the maximum bending ratio, and the flexible printed wiring boards 38, 38 are connected to the conductive films 37, 37. Therefore, the conductive films 37, 37 and the flexible printed wiring boards 38, 38 are unlikely to be peeled off from the first planar light source body 14. As a result, a stable connection state between the conductive films 37, 37 and the flexible printed wiring boards 38, 38 with respect to the first planar light source body 14 can be ensured, and the flexible printed wiring boards 38, 38 to the first surface can be secured. The current can be stably supplied to the light source body 14.
  • planar light source bodies when a plurality of planar light source bodies are arranged, if planar light source bodies of different sizes and shapes are used, the manufacturing cost of the planar light source bodies increases, so that the same shape and the same size In many cases, a plurality of planar light source bodies formed on the surface are used.
  • the plurality of planar light source bodies tends to be in a simple arrangement state.
  • the lamp outer housing in which a plurality of planar light source bodies are arranged is formed in consideration of the shape and design of the vehicle body, it is likely to be formed into a complicated shape. Therefore, it becomes difficult to harmonize the arrangement state of the planar light source body with the shape of the outer casing of the lamp, which may cause a sense of discomfort from the viewpoint of visibility of the lamp for the vehicle.
  • the vehicle lamp 1 is provided with a fixed base 16 having a plurality of fixing portions 20 for fixing the plurality of first planar light source bodies 14, respectively, and a part of the light emitting portion 34 is shielded by the fixing portion 20.
  • the areas of the light emitting portions 34 shielded by the fixed portions 20 are different in at least two first planar light source bodies 14.
  • At least two first planar light source bodies 14 formed in the same shape and the same size are arranged in a state where the areas of the light emitting portions 34 shielded by the fixed portions 20 are different. It is difficult for the first planar light source body 14 to be in a simple arrangement state, and the harmony between the arrangement state of the first planar light source body 14 and the shape of the lamp outer housing 4 is improved without causing an increase in manufacturing cost. It is possible to improve the visibility of the vehicle lamp 1.
  • a slit 20a is formed in the fixed portion 20 into which the lower side portion 31 which is the end portion of the first planar light source body 14 is inserted.
  • the first planar light source body 14 is fixed to the fixed base 16 by being inserted into the slit 20a, the first planar light source body 14 can be fixed with an easy and simple structure.
  • a first pressing portion 22 and a second pressing portion 23, 25 which are pressing portions for pressing a part of the first planar light source body 14 are provided, and an outer peripheral portion of the first planar light source body 14 is provided. It is composed of a plurality of side portions, an upper side portion 30, a lower side portion 31, a first side side portion 32, and a second side side portion 33, and at least one side portion, the lower side portion 31, is fixed by the fixing portion 20.
  • the first side side portion 32 which is at least one other side portion, is pressed by the first pressing portion 22 and the second pressing portions 23, 25.
  • the first planar light source body 14 at least one side portion, the lower side portion 31, is fixed by the fixing portion 20, and the first side side portion 32, which is the other at least one side portion, is the first pressing portion. Since the first planar light source body 14 is arranged in a state of being pressed by the 22 and the second pressing portions 23 and 25, a stable arrangement state of the first planar light source body 14 can be ensured.
  • a plurality of pressing bases 19 (including the inner lens 13) having the first pressing portions 22 and the second pressing portions 23 and 25 are provided, and the first side side portion 32 is used as the pressing base 19. It is pressed from both sides by the first pressing portion 22 and the second pressing portions 23 and 25 provided respectively.
  • the first planar light source body 14 is held by the fixed base 16 and the plurality of pressing bases 19, it is possible to improve the degree of freedom in designing the structure for holding the first planar light source body 14. it can.
  • a part of the light emitting portion 34 is shielded by the first pressing portion 22, and the areas of the light emitting portion 34 shielded by the first pressing portion 22 are different in at least two first planar light source bodies 14. Has been done.
  • the first side side portion 32 is pressed by the first pressing portion 22 and the second pressing portions 23, 25 in a bent state.
  • the first planar light source body 14 is held by the fixed base 16 and the pressing base 19 (including the inner lens 13) in a bent state, the plurality of first planar light sources in the vehicle lamp 1 are present. It becomes possible to effectively utilize the arrangement space of the body 14, and it is possible to reduce the size of the vehicle lamp 1.
  • the first planar light source body 14 is arranged in a bent state in the light chamber 5, and the first planar light source body 14 has a width at one end in the length direction, for example, the upper end. (Upper edge 26) or lower end (lower edge 27) or both ends (upper edge 26 and lower edge 27) are maximized.
  • the first planar light source body 14 in a state where the first planar light source body 14 is bent so as to be convex toward the cover 3, the portion of the first planar light source body 14 that is bent and protrudes toward the cover 3 becomes the cover 3. Since interference is less likely to occur and the width of the light emitting portion of the first planar light source body 14 is different in the length direction, the first planar light source body 14 does not significantly reduce the amount of light emitted from the first planar light source body 14. It is possible to secure an appropriate arrangement state of the planar light source body 14.
  • first planar light source body 14 is arranged in a state where the intermediate portion in the length direction is bent in the direction approaching the cover 3, and the first planar light source body 14 has the width of one end or both ends in the length direction. Is maximized.
  • the intermediate portion and the cover 3 are less likely to interfere with each other, and the first surface in the lamp chamber 5
  • the arrangement space of the light source body 14 can be effectively utilized, and the size of the vehicle lamp 1 can be reduced while avoiding the interference between the first planar light source body 14 and the cover 3.
  • the first planar light source body 14 is provided with a light emitting portion 34 that emits light and a non-light emitting portion 35 that does not emit light, and a boundary portion 35b that is a part of the non-light emitting portion 35 is a first planar surface. It is provided in the portion of the light source body 14 where the bending rate is maximized.
  • first planar light source bodies 14, 14, 14 are arranged apart from each other in the front-rear direction, and the first planar light source bodies 14, 14, 14 are displaced in the left-right direction and move backward as the vehicle moves. It is located inside in the left-right direction.
  • the light emitted rearward from the first planar light source bodies 14, 14, 14 is less likely to be shielded by the first planar light source body 14 located on the rear side, so that the light irradiation efficiency is improved. It can be improved.
  • the first planar light source bodies 14, 14, 14 arranged apart from each other in the front-rear direction are displaced in the left-right direction, and the vehicle moves forward. It is desirable to be located inside in the left-right direction of.
  • first planar light source body 14 arranged in a state where the intermediate portion in the length direction is bent in the direction approaching the cover 3 is shown, but the width of one end in the length direction is minimized.
  • a first planar light source body 14A having a maximum intermediate width in the length direction may be used (see FIG. 13).
  • the first planar light source body 14A is arranged in a state where the intermediate portion in the length direction is bent in the direction away from the cover 3 (see FIG. 14).
  • the first planar light source body 14A is arranged in a state where the end portion in the length direction in which the width is minimized is close to the cover 3, and therefore the end portion and the cover. 3 is unlikely to interfere with each other, the arrangement space of the first planar light source body 14A in the light chamber 5 is effectively utilized, and after avoiding interference between the first planar light source body 14A and the cover 3, the vehicle lamp 1 It is possible to reduce the size.
  • the first planar light source body 14A since the width of the light emitting portion of the first planar light source body 14A differs in the length direction, the first planar light source does not significantly reduce the amount of light emitted from the first planar light source body 14. It is possible to secure an appropriate arrangement state of the body 14A.
  • the lower side portion 31 is fixed by the fixing portion 20, and the first side side portion 32 is the first pressing portion 22 and the second pressing portion 23.
  • the first planar light source body 14 (14A) any of the upper side portion 30, the lower side portion 31, the first side side portion 32, or the second side side portion 33 is fixed. Alternatively, it may be suppressed. Further, any two or more side portions of the upper side portion 30, the lower side portion 31, the first side side portion 32, or the second side side portion 33 may be fixed or pressed.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

Cette invention concerne une unité d'éclairage de véhicule, comprenant : un boîtier externe d'unité d'éclairage (4) qui a un boîtier de lampe (2) ayant une ouverture et un couvercle (3) pour fermer l'ouverture, et dont un espace intérieur est façonné en forme de chambre de lampe (5) ; et des sources de lumière planes auto-luminescentes pliables (14) qui sont placées dans la chambre de lampe. Les sources de lumière planes sont placées dans la chambre de lampe dans un état plié, les sources de lumière planes ayant comme direction de la longueur la direction qui est orthogonale à la fois à la direction de l'épaisseur et à la direction de la largeur de courbure, et la largeur des sources de lumière planes est maximale ou minimale à une extrémité dans la direction de la longueur.
PCT/JP2020/010523 2019-04-01 2020-03-11 Unité d'éclairage de véhicule WO2020203120A1 (fr)

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CN202080025780.9A CN113631858B (zh) 2019-04-01 2020-03-11 车辆用灯具
JP2021511338A JPWO2020203120A1 (fr) 2019-04-01 2020-03-11

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JP2019069726 2019-04-01
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