CN109630974A - Headlight for automobile - Google Patents

Headlight for automobile Download PDF

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Publication number
CN109630974A
CN109630974A CN201811122320.9A CN201811122320A CN109630974A CN 109630974 A CN109630974 A CN 109630974A CN 201811122320 A CN201811122320 A CN 201811122320A CN 109630974 A CN109630974 A CN 109630974A
Authority
CN
China
Prior art keywords
light
emitting component
dipped headlight
high beam
mentioned
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.)
Granted
Application number
CN201811122320.9A
Other languages
Chinese (zh)
Other versions
CN109630974B (en
Inventor
大川浩嗣
山本有
山本有一
藤田阳平
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
Publication of CN109630974A publication Critical patent/CN109630974A/en
Application granted granted Critical
Publication of CN109630974B publication Critical patent/CN109630974B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F21S41/148—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
    • 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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout 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
    • F21S41/663—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching 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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/12—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by screwing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/06—Optical design with parabolic curvature
    • 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
    • F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • 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

The purpose of the present invention is to provide a kind of headlight for automobile, can also form the desired light distribution patterns of dipped headlight and the light distribution patterns of high beam with a reflector.Headlight for automobile of the invention has lamp unit (LU), includes at least one high beam light-emitting component (42)；At least one dipped headlight is with light-emitting component (41)；One reflector (20) reflects the light projected from high beam light-emitting component (42) and dipped headlight light-emitting component (41).High beam light-emitting component (42) and dipped headlight are arranged side-by-side along the longitudinal direction with light-emitting component (41), and the gross area of the light-emitting surface (41f) of the gross area and dipped headlight light-emitting component (41) of the light-emitting surface (42f) of high beam light-emitting component (42) is different from each other.

Description

Headlight for automobile
Technical field
The present invention relates to headlight for automobile.
Background technique
As using automobile head lamp as the headlight for automobile of representative, it is known to the dipped headlight in addition to illuminating front at night The headlamp that the light source of high beam etc. of farther place is illuminated than the dipped headlight is also equipped with outside light source.It is used from high beam The light of light source include the light just irradiated more up than dipped headlight.In addition, headlight for automobile also has in a lamp unit In have these light sources.
Such as a kind of lamps apparatus for vehicle is disclosed in following patent document 1, have at least two reflector elements, this is anti- Emitter unit includes the 1st and the 2nd light-emitting component being arranged side-by-side along the longitudinal direction and makes from the 1st and the 2nd light-emitting component The reflector that reflects forward of emergent light.In the lamps apparatus for vehicle, the 1st light-emitting component is by the light source as dipped headlight, and the 2nd Light-emitting component is by the light source as high beam.
[citation]
[patent document]
Patent document 1: Japanese Unexamined Patent Publication 2016-72017 bulletin
Summary of the invention
[problems to be solved by the invention]
In the lamps apparatus for vehicle of above patent document 1, by making the 1st light-emitting component of above-mentioned each reflector element simultaneously It lights, forms the light distribution patterns or part of it of dipped headlight.In addition, the 2nd light-emitting component by making above-mentioned each reflector element It lights simultaneously, forms the light distribution patterns or part of it of high beam.In this way, use is multiple in previous headlight for automobile Has the unit of the light-emitting component of dipped headlight, the light-emitting component of high beam and reflector, to form the light distribution of dipped headlight The light distribution patterns of pattern and high beam.Make the light projected from the light-emitting component of dipped headlight with a reflector and from remote In the case where the light reflection that the light-emitting component of light lamp projects, from the region that the light of the light-emitting component of dipped headlight injection is irradiated Size and roughly the same size can be become from the size in region that the light that the light-emitting component of high beam projects is irradiated. In this case, if reflector is designed to make one of the light distribution patterns of dipped headlight and the light distribution patterns of high beam at For desired shape, then it is difficult to that another one is made to become desired shape.In this way, in previous headlight for automobile, it is difficult To form desired dipped headlight with the light-emitting component of the light-emitting component of dipped headlight, high beam and a reflector The light distribution patterns of light distribution patterns and high beam.
In addition, the light source of high beam is usually than the light Xiang Gengyuan of the light source from dipped headlight and lateral relatively narrow range Irradiation light.If the light source igniting for there was only high beam when high beam is lighted as a result, and the light source of dipped headlight are off, from From the point of view of driver, the nearby square illumination of vehicle may not be enough.On the other hand, if when high beam is lighted dipped headlight light The light source of source and high beam is all lighted simultaneously, then due to the light from dipped headlight light source, from the point of view of driver, vehicle Nearby side it is excessively bright, therefore feel that the light of irradiation distant place is relatively weak sometimes.
Therefore, desired dipped headlight can also be formed with a reflector it is an object of the present invention to provide a kind of Light distribution patterns and high beam light distribution patterns headlight for automobile.Another object of the present invention is to provide a kind of vehicle use Headlamp can suitably control brightness and range of exposures when high beam is lighted.
[means used to solve the problem]
To solve the above-mentioned problems, headlight for automobile of the invention is characterised by comprising lamp unit, has extremely A few high beam light-emitting component, at least one dipped headlight light-emitting component, reflection from above-mentioned high beam light-emitting component with And the reflector of light that above-mentioned dipped headlight is projected with light-emitting component；Above-mentioned high beam light-emitting component and above-mentioned dipped headlight It is arranged side-by-side along the longitudinal direction with light-emitting component, the gross area and above-mentioned dipped headlight of the light-emitting surface of above-mentioned high beam light-emitting component The gross area with the light-emitting surface of light-emitting component is different from each other.
In the present specification, the light-emitting surface of light-emitting component refers to the face to shine in light-emitting component.For example, light-emitting component is In the case where LED, the face of pn-junction is by the light-emitting surface as light-emitting component.However, light-emitting component is come from via fluorophor injection In the case where the LED of the light in the face of pn-junction, the light-emitting surface of the fluorophor is by the light-emitting surface as light-emitting component.In addition, the member that shines The area of the light-emitting surface of part refers to, along the light-emitting surface from the point of view of the optical axis direction of the light projected from light-emitting surface when the light-emitting surface Area.
In above-mentioned headlight for automobile, high beam light-emitting component and dipped headlight with light-emitting component along the longitudinal direction side by side Configuration, the light that is projected as a result, from high beam with light-emitting component and is reflected from dipped headlight with the light that light-emitting component projects by reflector Vertically different direction.The light distribution patterns of dipped headlight and the light distribution patterns of high beam are formed as a result,.However, such as It is above-mentioned like that, the size in the region that the light that is projected from high beam with light-emitting component irradiates and projected from dipped headlight light-emitting component In the identical situation of size in the region of light irradiation, it may be difficult to which the light distribution patterns of the light distribution patterns and dipped headlight that make high beam become Desired shape.Therefore, in above-mentioned headlight for automobile, due to high beam light-emitting component light-emitting surface the gross area and The gross area of the light-emitting surface of dipped headlight light-emitting component is different from each other, therefore the area for the light irradiation projected from high beam with light-emitting component The size in the region that the size in domain and the light projected from dipped headlight with light-emitting component irradiate is different from each other.It is reflected as a result, with one Device is also capable of forming the desired light distribution patterns of dipped headlight and the light distribution patterns of high beam.
Additionally, it is preferred that the number of above-mentioned high beam light-emitting component and the number of above-mentioned dipped headlight light-emitting component are each other not Together.
The number of high beam light-emitting component and the number of dipped headlight light-emitting component are different from each other, to be easy as above-mentioned Like that make high beam light-emitting component light-emitting surface the gross area and dipped headlight light-emitting component light-emitting surface the gross area that This is different.
Additionally, it is preferred that the number of above-mentioned high beam light-emitting component is identical with the number of above-mentioned dipped headlight light-emitting component, The face of the light-emitting surface of the area of the light-emitting surface of one above-mentioned high beam light-emitting component and an above-mentioned dipped headlight light-emitting component Product is different from each other.
The face of the light-emitting surface of the area of the light-emitting surface of one high beam light-emitting component and a dipped headlight light-emitting component Product is different from each other, to be easy to make the gross area of the light-emitting surface of high beam light-emitting component and dipped headlight hair as described above The gross area of the light-emitting surface of optical element is different from each other.
Additionally, it is preferred that the shape of the light-emitting surface of above-mentioned dipped headlight light-emitting component and above-mentioned high beam light-emitting component go out One of shape of smooth surface is laterally longer than another one.
The shape of the light-emitting surface of dipped headlight light-emitting component refers to having the case where multiple dipped headlight light-emitting components Under, by the shape of the light-emitting surface of this multiple dipped headlight light-emitting component altogether, that is, surround multiple dipped headlight light-emitting components The shape of light-emitting surface.In addition, the shape of the light-emitting surface of high beam light-emitting component refers to, having multiple high beams member that shines In the case where part, by the shape of the light-emitting surface of this multiple high beam light-emitting component altogether, that is, multiple high beam hairs are surrounded The shape of the light-emitting surface of optical element.
It is projected in the shape in the region for the light irradiation projected from high beam with light-emitting component and from dipped headlight with light-emitting component Light irradiation region the identical situation of shape under, when high beam is lighted hot-zone be easy from desired position deviate.It is logical It crosses so that the shape of the light-emitting surface of dipped headlight light-emitting component is laterally longer than the shape of the light-emitting surface of high beam light-emitting component, Can make from dipped headlight light-emitting component project light irradiate region extend into desired shape in the lateral direction, and make from High beam irradiates relatively narrow range with the light that light-emitting component projects.Therefore, it is easy the light for making to project from high beam light-emitting component Hot-zone irradiation is aimed at when high beam is lighted.It is also easier to form the light distribution of desired dipped headlight with a reflector as a result, The light distribution patterns of pattern and high beam.
In addition, the light-emitting surface of the shape of the light-emitting surface by making high beam light-emitting component than dipped headlight light-emitting component Shape is laterally long, and the amount of the light projected from high beam light-emitting component can be made than the amount for the light that dipped headlight light-emitting component projects More.By restraining the light projected from high beam light-emitting component towards desired position with reflective mirror like this, remote Hot-zone can be formed on desired position when light lamp is lighted.Hot-zone when high beam is lighted preferably is formed on dipped headlight Near the "cut-off"line of light distribution patterns.By making the shape of the light-emitting surface of high beam light-emitting component laterally long, can inhibit The light projected from high beam with light-emitting component is excessively vertically spread, and hot-zone is easily formed the light distribution patterns in dipped headlight "cut-off"line near.
Additionally, it is preferred that the shape of the light-emitting surface of above-mentioned high beam light-emitting component and above-mentioned dipped headlight light-emitting component go out One of shape of smooth surface is longer in the longitudinal direction than another one.
By keeping the shape of the light-emitting surface of light-emitting component longer in front-rear direction, it is easy by the light that reflector reflects upper and lower It widely spreads in direction.By making the shape of the light-emitting surface of high beam light-emitting component go out light than dipped headlight light-emitting component The shape in face is grown in the longitudinal direction, is easy to make the light distribution patterns of high beam to extend in above-below direction.High beam is easy to shine as a result, It is incident upon at a distance.
In addition, light-emitting surface of the shape of the light-emitting surface by making dipped headlight light-emitting component than high beam light-emitting component Shape it is longer in the longitudinal direction, be easy to make the light distribution patterns of dipped headlight to extend in above-below direction.For example it is being used for as a result, In the case where the high vehicle of vehicle body as lorry, dipped headlight be easy to be irradiated to from away from the close position of vehicle afield.
Additionally, it is preferred that having multiple above-mentioned lamp units, and in an above-mentioned lamp unit, above-mentioned dipped headlight, which is used, to shine The shape of the light-emitting surface of element is laterally longer than the shape of the light-emitting surface of above-mentioned high beam light-emitting component, in other above-mentioned lamps and lanterns In unit, the shape of the shape of the light-emitting surface of above-mentioned high beam light-emitting component than the light-emitting surface of above-mentioned dipped headlight light-emitting component It is laterally longer.
Sometimes it only is difficult to form the light distribution patterns and high beam of bright dipped headlight with the light from a lamp unit Light distribution patterns.By having multiple lamp units, the light distribution patterns of dipped headlight can be formed with the light from a lamp unit And the light distribution patterns of high beam, and with the light distribution patterns of the light reinforcement dipped headlight from other lamp units and the light distribution of high beam Pattern.
In addition, to solve the above-mentioned problems, headlight for automobile of the invention is characterized in that having: at least one is remote Light lamp light-emitting component；At least one dipped headlight light-emitting component；Emission control circuit makes at least when high beam is lighted One above-mentioned dipped headlight is lighted with light-emitting component, and the light that will be projected from least one above-mentioned dipped headlight with light-emitting component Luminous intensity control at brightness different when being lighted from dipped headlight.
In above-mentioned headlight for automobile, when high beam is lighted, lighted by least one dipped headlight with light-emitting component, It can inhibit the phenomenon that the nearby side of vehicle is dimmed from the point of view of driver.In addition, when high beam is lighted, by controlling from least The luminous intensity for the light that one dipped headlight is projected with light-emitting component, becomes brightness different when lighting from dipped headlight, can So that the nearby side of vehicle becomes brightness appropriate from the point of view of driver.In this way, in above-mentioned headlight for automobile, it can be appropriate Brightness and range of exposures when control high beam is lighted.In addition, being lighted by emission control circuit close when high beam is lighted The dipped headlight light-emitting component that light lamp light-emitting component and luminous intensity are controlled can be different from each other or mutually the same. That is, can be a dipped headlight for example when high beam is lighted and be lit with light-emitting component, other dipped headlight members that shine Part is off or by dim light, be also possible to a dipped headlight with light-emitting component to be lighted from dipped headlight when different luminance point It is bright.
In addition, above-mentioned emission control circuit preferably when high beam is lighted, makes from least one above-mentioned dipped headlight with shining The luminous strength ratio dipped headlight for the light that element projects is low when lighting.
The so-called luminous intensity for reducing the light projected from dipped headlight with light-emitting component, is put out not comprising dipped headlight with light-emitting component The case where going out.As described above, dipped headlight is not off with light-emitting component when high beam is lighted, but reduces and sent out from dipped headlight The luminous intensity for the light that optical element projects, the nearby side of vehicle brightens to a certain extent from the point of view of driver as a result, but can press down System is excessively bright.
Additionally, it is preferred that having more than two above-mentioned dipped headlight light-emitting components, and above-mentioned emission control circuit is remote When light lamp is lighted, the luminous intensity of the light projected from least one above-mentioned dipped headlight with light-emitting component and dipped headlight is made to light phase Together.
Additionally, it is preferred that have more than two above-mentioned dipped headlight light-emitting components, and when high beam is lighted, above-mentioned hair Light control circuit uses other at least one above-mentioned dipped headlights of the luminous strength ratio of at least one above-mentioned dipped headlight light-emitting component The luminous intensity of light-emitting component is high, and luminous intensity is mentioned by the above-mentioned dipped headlight light-emitting component of relative reduction than luminous intensity relatively High above-mentioned dipped headlight more irradiates the nearby side of vehicle with light-emitting component.
Multiple dipped headlight light-emitting components are controlled in this way, are easy to become at a distance from the point of view of driver when high beam is lighted It becomes clear and the nearby side of vehicle can be inhibited excessively bright.
Additionally, it is preferred that having more than two above-mentioned dipped headlight light-emitting components, above-mentioned emission control circuit is in high beam It when lighting, lights at least one above-mentioned dipped headlight with light-emitting component, and makes at least other one above-mentioned dipped headlight hairs Optical element extinguishes.In this case, it is preferable to which the above-mentioned dipped headlight light-emitting component ratio being off when high beam is lighted is in high beam The above-mentioned dipped headlight light-emitting component lighted when lighting more irradiates the nearby side of vehicle when dipped headlight is lighted.
By controlling multiple dipped headlight light-emitting components like this, when dipped headlight is lighted from the point of view of driver vehicle it is close Front is bright enough, and is able to suppress when high beam is lighted that the nearby side of vehicle is excessively bright from the point of view of driver.
Additionally, it is preferred that having lamp unit, above-mentioned high beam light-emitting component is included；The above-mentioned dipped headlight member that shines Part；And a reflector, reflect the light projected from above-mentioned high beam light-emitting component and above-mentioned dipped headlight with light-emitting component.
By making a lamp unit that there is high beam light-emitting component, dipped headlight light-emitting component and reflector, energy The enough light from a lamp unit forms the light distribution patterns of dipped headlight and the light distribution patterns of high beam.Before vehicle is used as a result, Illuminator can be miniaturized.
Additionally, it is preferred that having: the lamp unit of high beam, with above-mentioned high beam light-emitting component, and reflection from One reflector of the light that above-mentioned high beam is projected with light-emitting component；And the lamp unit of dipped headlight, with above-mentioned close Light lamp light-emitting component, and reflect a reflector of the light projected from above-mentioned dipped headlight with light-emitting component.
Sometimes it only is difficult to form the light distribution patterns of high beam appropriate with the light of the lamp unit from high beam.Pass through Have the lamp unit of high beam and the lamp unit of dipped headlight, can be formed with the light of the lamp unit from high beam A part of the light distribution patterns of high beam, and with the light distribution figure of the light reinforcement high beam of the lamp unit from dipped headlight Case.
[invention effect]
As described so, according to the present invention, it can provide and a kind of also be capable of forming desired dipped headlight with a reflector Light distribution patterns and high beam light distribution patterns headlight for automobile.In addition, in accordance with the invention it is possible to one kind is provided can be with Suitably control brightness when high beam is lighted and the headlight for automobile of range of exposures.
Detailed description of the invention
Fig. 1 is the schematic front view for indicating the vehicle for the headlight for automobile for having in the 1st embodiment of the invention.
Fig. 2 is the sectional view of the II-II line along Fig. 1.
Fig. 3 is the sectional view of the III-III line along Fig. 1.
(A) of Fig. 4 indicates that the light distribution patterns of dipped headlight, (B) of Fig. 4 indicate the light distribution patterns of high beam, (C) table of Fig. 4 Show the light distribution patterns illuminated in the daytime.
Fig. 5 is the schematic diagram for indicating the horizontal direction section of lamps and lanterns of the 2nd embodiment of the invention.
Fig. 6 is the schematic diagram for indicating the horizontal direction section of lamps and lanterns of the 3rd embodiment of the invention.
Fig. 7 is the schematic diagram for indicating the vertical direction section of lamps and lanterns of the 4th embodiment of the invention.
Fig. 8 is the schematic diagram for indicating the vertical direction section of lamps and lanterns of the 5th embodiment of the invention.
Fig. 9 is the schematic diagram for indicating the horizontal direction section of the lamps and lanterns in variation of the invention.
Figure 10 is the schematic front view for indicating the vehicle for the headlight for automobile for having in the 6th embodiment of the invention.
Figure 11 is the sectional view of the horizontal direction of a lamps and lanterns of the II-II line along Figure 10.
Figure 12 is the sectional view of the vertical direction of a lamps and lanterns of the III-III line along Figure 10.
Figure 13 is the sectional view of the vertical direction of other lamps and lanterns shown in visual angle same as Figure 12.
(A) of Figure 14 indicates that the light distribution patterns of dipped headlight, (B) of Figure 14 indicate the light distribution patterns of high beam, (C) of Figure 14 Indicate the light distribution patterns illuminated in the daytime.
Figure 15 is the schematic diagram for indicating the horizontal direction section of lamps and lanterns of the 7th embodiment of the invention.
Figure 16 is the schematic diagram for indicating the vertical direction section of lamps and lanterns of the 8th embodiment of the invention.
Specific embodiment
Hereinafter, the mode of headlight for automobile for carrying out the present invention is illustrated together with attached drawing.It illustrates below Bright embodiment is to facilitate the understanding of the present invention, rather than for limiting the invention explanation.The present invention is not taking off In the case where from purport, it can modify and improve based on the following embodiments and the accompanying drawings.
(the 1st embodiment)
Fig. 1 is the schematic front view of the vehicle for the headlight for automobile that explanation has the 1st embodiment of the invention.Such as figure Shown in 1, left and right directions of the vehicle 100 in front has a headlight for automobile 1 respectively.A pair of of vehicle that vehicle 100 has It is formed the symmetrical shape of left and right directions with headlamp 1.In the headlight for automobile 1 of present embodiment, multiple lamps and lanterns 1a, 1b, 1c are mutually arranged horizontally-arrangedly, and lamps and lanterns 1a is configured in the outermost of vehicle 100, lamps and lanterns 1c is configured in vehicle 100 most Central side, lamps and lanterns 1b are configured between lamps and lanterns 1a and lamps and lanterns 1c.Each lamps and lanterns 1a, 1b, 1c can use mutually the same composition, Composition different from each other can also be used.
Fig. 2 is from the sectional view for the horizontal direction of the line II-II along Fig. 1 seen upwardly, and Fig. 3 is the line III- along Fig. 1 The sectional view of the vertical direction of III.I.e., it is a left side of lamps and lanterns 1a that Fig. 2, which is the sectional view of the horizontal direction on the top of lamps and lanterns 1a, Fig. 3, The sectional view of the vertical direction of the approximate centre of right direction.As shown in Figure 2 and Figure 3, a part as headlight for automobile 1 Lamps and lanterns 1a, have shell 10 and the lamp unit LU that is incorporated in the shell 10.
10 > of < shell
Shell 10 has lamp housing 11, front shroud 12 and back cover 13 and is used as main composition.The front openings of lamp housing 11, front shroud 12 are fixed on lamp housing 11 in a manner of closing the opening.In addition, forming the opening smaller than front, back cover at the rear of lamp housing 11 13 are fixed on lamp housing 11 in a manner of closing the opening.
By lamp housing 11, the opening in the front for sealing the lamp housing 11 front shroud 12, seal the lamp housing 11 rear opening The space that back cover 13 is formed is lamp house LR, and lamp unit LU is incorporated in this lamp house LR.
< lamp unit LU >
Lamp unit LU has bearing part 30,20, two dipped headlight light-emitting components 41 of reflector and a distance light Lamp uses light-emitting component 42 as main composition.
Bearing part 30 is metal component, has top plate 31, back plate 32, engaging portion 33.Top plate 31 is approximate horizontal The sheet metal parts of extension, back plate 32 are the sheet metal parts substantially to extend to vertical.The rear end of top plate 31 and back plate 32 Upper end interconnect.In addition, engaging portion 33 is connected near the upper end of back plate 32.Engaging portion 33 is prolonged towards the rear from back plate 32 It stretches, the screw hole being open rearward is formed in engaging portion 33.Screw 35 is screwed into this screw hole from the outside of lamp housing 11, card Determine portion 33 and is fixed on lamp housing 11.In addition, the lower side in back plate 32 is also formed with screw hole, outside spiral shell of the screw 34 from lamp housing 11 Enter in this screw hole, back plate 32 is fixed on lamp housing 11.So, back plate 32 is fixed on lamp with the state of substantially vertical In the LR of room, the top plate 31 connecting with back plate 32 is also fixed in lamp house LR.In addition, by adjusting these screws 34,35, it can be with The angle of micro-adjustment back plate 32, also can micro-adjustment top plate 31 therewith angle.
Reflector 20 is fixed on the lower surface of top plate 31.Reflector 20 has reflector body portion 24 and coating portion 23.Reflector body portion 24 is formed from a resin.Coating portion 23 is on the surface of the front side in reflector body portion 24, by aluminium etc. The film that metal or metal oxide are constituted.The surface in this coating portion 23 is by the reflecting surface 23r as light.Reflecting surface 23r Concave shape by being formed by opening direction for the free form surface based on the parabola of front side in this way.More specifically, The shape in the section of the vertical direction of reflecting surface 23r is the shape below vertex when keeping substantially parabolical central axis horizontal Shape, the shape in the section of the horizontal direction of reflecting surface 23r are the shapes comprising substantially parabolical vertex.However, reflecting surface 23r Vertical direction the parabola in section and the parabola in section of horizontal direction be also possible to mutually different parabola.Separately Outside, the shape of the reflecting surface 23r in the section of horizontal direction is also possible to not based on parabola, is also possible to for example ellipse Shape or other concave shapes based on round a part.
In addition, being configured with dipped headlight light-emitting component 41 and high beam light-emitting component 42 in the lower surface of top plate 31.Closely Light lamp projects the light at least as a part of dipped headlight with light-emitting component 41, and the injection of high beam light-emitting component 42 at least becomes The light of a part of high beam.In the present embodiment, there are two dipped headlight light-emitting components 41 and a high beam to use for configuration Light-emitting component 42.In the case where in terms of the front of headlight for automobile 1, two dipped headlight light-emitting components 41 are matched horizontally-arrangedly It sets, high beam light-emitting component 42 is configured between two dipped headlight light-emitting components 41.That is, two dipped headlights member that shines Part 41 and high beam light-emitting component 42 in the case where the lower surface of planar observation top plate 31, are configured in and triangle Each vertex be overlapped position.In addition, shape and high beam of two dipped headlights with the respective light-emitting surface 41f of light-emitting component 41 Shape with the light-emitting surface 42f of light-emitting component 42 is roughly the same.The light-emitting surface 41f of two dipped headlight light-emitting components 41 as a result, The gross area it is bigger than the gross area of the light-emitting surface 42f of high beam light-emitting component 42.In addition, as described above, two dipped headlights With light-emitting component 41 by horizontally-arranged configuration, the shape of the light-emitting surface 41f synthesis of two dipped headlight light-emitting components 41 is compared into high beam Shape with the light-emitting surface 42f of light-emitting component 42 is laterally long.These dipped headlights are configured in reflecting surface with light-emitting component 41 respectively The parabolical near focal point in basis of the cross sectional shape of the vertical direction of 23r, high beam light-emitting component 42 are configured in than close Light lamp with light-emitting component 41 on the front.
LED is for example respectively adopted with light-emitting component 42 in dipped headlight light-emitting component 41 and high beam (LightEmittingDiode: light emitting diode).Dipped headlight light-emitting component 41 and high beam light-emitting component 42 are connected It connects in unshowned circuit substrate, light can be projected and the power supply from the circuit substrate.Dipped headlight light-emitting component 41 And high beam light-emitting component 42 can be connected to different circuit substrates, also can connect in a circuit substrate.So And it is connected to a circuit substrate by making dipped headlight light-emitting component 41 and high beam light-emitting component 42, it can press down Components number processed becomes more, and is easy to determine the relative position of each light-emitting component.
The movement and function and effect of the headlight for automobile 1 of present embodiment will be illustrated next.(A) of Fig. 4 indicates close The light distribution patterns of light lamp, (B) of Fig. 4 indicate that the light distribution patterns of high beam, (C) of Fig. 4 indicate the light distribution patterns illuminated in the daytime.
> when < dipped headlight is lighted
In present embodiment, two dipped headlights are irradiated by the light from dipped headlight light-emitting component 41.
As shown in Figure 2 and Figure 3, the light L41's projected from two dipped headlights with light-emitting component 41 is most of in reflecting surface 23r It is reflected.In light L41, the light projected from the region of the forefront side in the exit portion of dipped headlight light-emitting component 41 is formed The "cut-off"line of dipped beam shown in (A) of Fig. 4.In addition, dipped headlight light-emitting component 41 is configured in reflection as described above The parabolical near focal point in basis of the cross sectional shape of the vertical direction of face 23r, from the dipped headlight exit portion of light-emitting component 41 In same area project light, though reflecting surface 23r which part reflect, after reflection all become it is generally parallel to each other Light.
> when < high beam is lighted
In the present embodiment, high beam in addition to by the light L41 from two dipped headlight light-emitting components 41, also by coming from The light of high beam light-emitting component 42 irradiates.As shown in Figure 2 and Figure 3, the light L42 projected from high beam with light-emitting component 42 is most It is reflected by reflecting surface 23r.High beam light-emitting component 42 is configured than dipped headlight light-emitting component 41 on the front as described above, It is irradiated against the top by least part of the light L42 after reflecting surface 23r reflection to the "cut-off"line than above-mentioned dipped headlight.Pass through Like this when high beam is lighted, dipped headlight is made also to be shone with light-emitting component 41, is capable of forming wider light distribution in above-below direction Pattern.That is, being capable of forming the light distribution patterns of the wide range from the nearby side of vehicle 100 to distant place from the point of view of driver.
> when illumination is lighted between < days
By a part among lamps and lanterns 1a~1c as illuminating lamps and lanterns in the daytime, in irradiation illuminating light in the daytime In the case of, form the light distribution patterns illuminated in the daytime shown in (C) of Fig. 4.
As described above in this way, the headlight for automobile 1 of present embodiment has lamp unit LU, two are included Dipped headlight light-emitting component 41 and a high beam light-emitting component 42；One reflector 20, reflection are used from high beam and are shone The light that element 42 and dipped headlight are projected with light-emitting component 41.In addition, high beam is with light-emitting component 42 and dipped headlight light-emitting component 41 are arranged side-by-side along the longitudinal direction, the light that is projected from high beam with light-emitting component 42 and are projected from dipped headlight light-emitting component 41 Light by reflector 20, vertically different direction is reflected.As a result, as described above formed dipped headlight light distribution patterns and The light distribution patterns of high beam.
However, shining in the size in the region that the light projected from high beam light-emitting component 42 is irradiated and from dipped headlight use In the identical situation of area size that the light that element 41 projects is irradiated, if it is desired to by the light distribution patterns and dipped headlight of high beam One of light distribution patterns be formed as desired shape, then be difficult to forming another one into desired shape.This embodiment party In the headlight for automobile 1 of formula, as described above, the gross area of the light-emitting surface 42f of high beam light-emitting component 42 and dipped headlight are used The gross area of the light-emitting surface 41f of light-emitting component 41 is different from each other.Therefore, it is irradiated from the light that high beam light-emitting component 42 projects Region size and the size in region irradiated from the light that dipped headlight light-emitting component 41 projects it is different from each other.It uses as a result, One reflector 20 can also form the desired light distribution patterns of dipped headlight and the light distribution patterns of high beam.
In addition, the number and dipped headlight of high beam light-emitting component 42 are sent out in the headlight for automobile 1 of present embodiment The number of optical element 41 is different from each other.It is easy the total of the light-emitting surface 42f as described above for making high beam light-emitting component 42 as a result, The gross area of the light-emitting surface 41f of area and dipped headlight light-emitting component 41 is different from each other.
In addition, shining in the shape in the region that the light projected from high beam light-emitting component 42 is irradiated and from dipped headlight use In the identical situation of shape in the region that the light that element 41 projects is irradiated, when high beam is lighted, hot-zone (hotzone) is easy From desired positional shift.In the headlight for automobile 1 of present embodiment, dipped headlight as described above light-emitting component 41 The shape of light-emitting surface 41f is laterally longer than the shape of the light-emitting surface 42f of high beam light-emitting component 42, thereby, it is possible to make from The region that the light that dipped headlight light-emitting component 41 projects is irradiated extends in left and right directions and becomes desired shape, and makes Relatively narrow range is irradiated from high beam with the light that light-emitting component 42 projects.Therefore, it is easy to make to penetrate from high beam light-emitting component 42 Light out aims at hot-zone when high beam is lighted and is irradiated.It can be also readily formed with a reflector 20 as a result, desired Dipped headlight light distribution patterns and high beam light distribution patterns.
(the 2nd embodiment)
Next, referring to Fig. 5 the 2nd embodiment that the present invention will be described in detail.In addition, about identical as the 1st embodiment Or same constituent element, situation, otherwise marks same appended drawing reference and the repetitive description thereof will be omitted unless otherwise specifically stated.
Fig. 5 is the schematic diagram of the section of the horizontal direction of the lamps and lanterns in the 2nd embodiment of the invention.Fig. 5 and Fig. 2 are same Sample is the sectional view of the horizontal direction on the top of the lamps and lanterns 1a of present embodiment.
The lamps and lanterns 1a of present embodiment respectively includes a high beam light-emitting component 42 and the dipped headlight member that shines Part 41 and the 1st above-mentioned embodiment the difference is that, the face of the light-emitting surface 42f of high beam light-emitting component 42 Product is different with the area of light-emitting surface 41f of dipped headlight light-emitting component 41.One dipped headlight of present embodiment, which is used, to shine The light-emitting surface 41f of element 41 is formed laterally longer than the light-emitting surface 42f of a high beam light-emitting component 42.
It uses and shines by the area and a dipped headlight that make the light-emitting surface 42f of a high beam light-emitting component 42 like this The area of the light-emitting surface 41f of element 41 is different from each other, be easy to make the light-emitting surface 42f of high beam light-emitting component 42 the gross area and The gross area of the light-emitting surface 41f of dipped headlight light-emitting component 41 is different from each other.It is same as the first embodiment described above as a result, with one A reflector 20 can also form the desired light distribution patterns of dipped headlight and the light distribution patterns of high beam.
(the 3rd embodiment)
Next, referring to Fig. 6 the 3rd embodiment that the present invention will be described in detail.In addition, about identical as the 1st embodiment Or same constituent element, unless specifically indicated the case where, otherwise mark same appended drawing reference and the repetitive description thereof will be omitted.
Fig. 6 is the schematic diagram of the horizontal direction section of the lamps and lanterns in the 3rd embodiment of the invention.Fig. 6 is same as Fig. 2, It is the sectional view of the horizontal direction on the top of the lamps and lanterns 1a of present embodiment.
The number of the high beam of the lamps and lanterns 1a of present embodiment light-emitting component 42 and of dipped headlight light-emitting component 41 Number is different from the first embodiment described above.The lamps and lanterns 1a of present embodiment includes that two high beam light-emitting components 42 and one are close Light lamp light-emitting component 41.In the case where from the front of headlight for automobile 1, two high beams are horizontal with light-emitting component 42 Row arrangement, dipped headlight light-emitting component 41 are configured between two high beam light-emitting components 42.Therefore, high beam, which is used, shines The shape of the light-emitting surface 42f of element 42 is laterally longer than the shape of the light-emitting surface 41f of dipped headlight light-emitting component 41.
By making the shape of the light-emitting surface 42f of high beam light-emitting component 42 go out light than dipped headlight light-emitting component 41 The shape of face 41f is laterally long, and the amount of the light projected from high beam light-emitting component 42 can be than penetrating from dipped headlight light-emitting component 41 The amount of light out is more.In this way, by making the light projected from high beam light-emitting component 42 towards desired position with reflector 20 Convergence is set, hot-zone can be formed in desired position when high beam is lighted.It is preferred that hot-zone when high beam is lighted is formed on Near the "cut-off"line of the light distribution patterns of dipped headlight.By keeping the shape of the light-emitting surface 42f of high beam light-emitting component 42 horizontal To longer, the light projected from high beam with light-emitting component 42 can be inhibited excessively to spread in the up-down direction, hot-zone is easily formed Near the "cut-off"line of the light distribution patterns of dipped headlight.
(the 4th embodiment)
Next, referring to Fig. 7 the 4th embodiment that the present invention will be described in detail.In addition, about identical as the 1st embodiment Or same constituent element, unless specifically indicated the case where, otherwise mark same appended drawing reference and the repetitive description thereof will be omitted.
Fig. 7 is the schematic diagram of the section of the vertical direction of the lamps and lanterns in the 4th embodiment of the invention.Fig. 7 is same with Fig. 3 Sample is the sectional view of the vertical direction of the left and right directions approximate centre of the lamps and lanterns 1a of present embodiment.
The lamps and lanterns 1a of present embodiment, with the first embodiment described above the difference is that, two high beam light-emitting components 42 and a dipped headlight be arranged side-by-side respectively in front-rear direction with light-emitting component 41.In the lamps and lanterns 1a of present embodiment, pass through It is arranged side-by-side two high beams along the longitudinal direction with light-emitting component 42 as described above, by two high beam light-emitting components 42 Light-emitting surface 42f shape of the shape in the longitudinal direction than the light-emitting surface 41f of dipped headlight light-emitting component 41 altogether it is long.
By lengthening the shape of the light-emitting surface of light-emitting component in the longitudinal direction, the light after being reflected by reflector is in upper and lower It is easy broadly to spread upwards.By make high beam light-emitting component 42 light-emitting surface 42f shape in the longitudinal direction than close The shape of the light-emitting surface 41f of light lamp light-emitting component 41 is long, is easy to make the light distribution patterns of high beam to extend in above-below direction.By This, high beam is easy to be irradiated to a distant place.
(the 5th embodiment)
Next, referring to Fig. 8 the 5th embodiment that the present invention will be described in detail.About identical or same as the 1st embodiment Deng constituent element, otherwise situation unless otherwise specifically stated marks same appended drawing reference and the repetitive description thereof will be omitted.
Fig. 8 is the schematic diagram of the vertical direction section of the lamps and lanterns in the 5th embodiment of the invention.Fig. 8 is same as Fig. 3, It is the sectional view of the vertical direction of the left and right directions approximate centre of the lamps and lanterns 1a of present embodiment.
The lamps and lanterns 1a of present embodiment and the first embodiment described above the difference lies in that two dipped headlight light-emitting components 41 and a high beam be arranged side-by-side along the longitudinal direction respectively with light-emitting component 42.In the lamps and lanterns 1a of present embodiment, pass through It is arranged side-by-side two dipped headlights along the longitudinal direction with light-emitting component 41 as described above, by two dipped headlight light-emitting components 41 Light-emitting surface 41f shape of the shape in the longitudinal direction than the light-emitting surface 42f of high beam light-emitting component 42 altogether it is long.
It is shone by using the shape of the light-emitting surface 41f of dipped headlight light-emitting component 41 than high beam in the longitudinal direction The shape of the light-emitting surface 42f of element 42 is long, is easy to make the light distribution patterns of dipped headlight to extend in above-below direction.As a result, for example with In the case where the high vehicle of the vehicle body as lorry, it is easy afield to irradiate dipped headlight from the position close to vehicle.
It above with respect to the present invention, is illustrated by taking above embodiment as an example, but the present invention is not limited to above-mentioned implementations Mode.
For example, the number and shape of high beam light-emitting component 42, the number and shape of dipped headlight light-emitting component 41 are all It is not specifically limited, as long as the gross area of the light-emitting surface 42f of high beam light-emitting component 42 and dipped headlight light-emitting component 41 The gross area of light-emitting surface 41f is different from each other.
In addition, two dipped headlight light-emitting components 41 have been illustrated in left-right direction simultaneously in the first embodiment described above The example of row arrangement, but the present invention is not limited to the embodiments.Fig. 9 is indicated in variation of the invention in the same manner as Fig. 2 Lamps and lanterns horizontal direction section schematic diagram.As shown in figure 9, two dipped headlight light-emitting components 41 can in left-right direction simultaneously Column, and configure the position being staggered in the longitudinal direction.In addition, including multiple high beams as above-mentioned 3rd embodiment , can also be same as this variation in the case where with light-emitting component 42, two high beams with light-emitting component 42 in left-right direction simultaneously Column, and configure the position being staggered in the longitudinal direction.
In addition, the number of lamps and lanterns is not specifically limited in above embodiment.In the case where having multiple lamps and lanterns, respectively The position of lamps and lanterns is not specifically limited.Thus, for example in the above-described embodiment, lamps and lanterns 1a can be configured in vehicle 100 Outermost, lamps and lanterns 1a can also be configured in the bosom side of vehicle 100.
In addition, in the case where having multiple lamp units, preferably in a lamp unit, dipped headlight light-emitting component The shape of 41 light-emitting surface 41f is laterally longer than the shape of the light-emitting surface 42f of high beam light-emitting component 42, in other lamps and lanterns lists In member, the shape of the shape of the light-emitting surface 42f of high beam light-emitting component 42 than the light-emitting surface 41f of dipped headlight light-emitting component 41 It is laterally longer.That is, the use it is preferred that the lamps and lanterns 1a of the first embodiment described above and the lamps and lanterns 1a of above-mentioned 3rd embodiment are combined.Only It is difficult to form the light distribution patterns of bright dipped headlight and the light distribution patterns of high beam with the light from a lamp unit.Pass through Have multiple lamp units, the light distribution patterns of dipped headlight and matching for high beam can be formed with the light from a lamp unit Light pattern, and with the light distribution patterns of the light reinforcement dipped headlight from other lamp units and the light distribution patterns of high beam.
In addition, in the above-described embodiment, have been illustrated reflector 20 be configured in dipped headlight light-emitting component 41 with And the high beam embodiment of the lower section of light-emitting component 42, but reflector 20 can also be arranged on dipped headlight light-emitting component 41 and high beam light-emitting component 42 top.In this case, dipped headlight light-emitting component 41 and the high beam member that shines The positional relationship in the front-back direction of part 42 is opposite with above embodiment.
(the 6th embodiment)
Figure 10 is the schematic front view of the vehicle for the headlight for automobile that explanation has the 6th embodiment of the invention.Such as Shown in Figure 10, left and right directions of the vehicle 200 in front has a headlight for automobile 21 respectively.A pair that vehicle 200 has Headlight for automobile 21 is formed the symmetrical shape of left and right directions.In the headlight for automobile 21 of present embodiment, multiple lamps Tool 21a, 21b, 21c are mutually arranged horizontally-arrangedly, and lamps and lanterns 21a is configured in the outermost of vehicle 200, lamps and lanterns 21c is configured in The bosom side of vehicle 200, lamps and lanterns 21b are configured between lamps and lanterns 21a and lamps and lanterns 21c.It is such as following described in present embodiment As bright, lamps and lanterns 21a is by the lamps and lanterns as dipped headlight, and lamps and lanterns 21b is by the lamps and lanterns as high beam.Lamps and lanterns 21c can be with Using any one mutually the same composition with lamps and lanterns 21a, 21b, composition different from each other can also be used.
<lamps and lanterns 21a>
Figure 11 is from the sectional view for the horizontal direction of the line II-II along Figure 10 seen upwardly, and Figure 12 is the line along Figure 11 The sectional view of the vertical direction of III-III.I.e., it is lamps and lanterns that Figure 11, which is the sectional view of the horizontal direction on the top of lamps and lanterns 21a, Figure 12, The sectional view of the vertical direction of the approximate centre of the left and right directions of 21a.As shown in Figure 11, Figure 12, as headlight for automobile The lamps and lanterns 21a of 21 a part, the lamp unit 2LUa for having shell 210 and being incorporated in the shell 210.In this embodiment party In formula, lamp unit 2LUa is by the lamp unit as dipped headlight.
Shell 210 has lamp housing 211, front shroud 212 and back cover 213 and is used as main composition.It opens in the front of lamp housing 211 Mouthful, front shroud 212 is fixed on lamp housing 211 in a manner of closing the opening.In addition, being formed at the rear of lamp housing 211 small than in front of Opening, back cover 213 is fixed on lamp housing 211 in a manner of closing the opening.
It is opened by lamp housing 211, the front shroud 212 of the opening in the front for sealing the lamp housing 211, the rear that seals the lamp housing 211 The space that the back cover 213 of mouth is formed is lamp house 2LR, and lamp unit 2LUa is incorporated in this lamp house 2LR.
Lamp unit 2LUa has bearing part 230,220, two dipped headlight light-emitting components of reflector 241,242, hair Light control circuit 240 is used as main composition.
Bearing part 230 is metal component, has top plate 231, back plate 232, engaging portion 233.Top plate 231 is substantially The sheet metal parts of horizontal extension, back plate 232 are the sheet metal parts substantially to extend to vertical.The rear end of top plate 231 and The upper end of back plate 232 interconnects.In addition, engaging portion 233 is connected near the upper end of back plate 232.Engaging portion 233 is from back plate 232 extend towards the rear, and the screw hole being open rearward is formed in engaging portion 233.Screw 235 is by the outside spiral shell from lamp housing 211 Enter in this screw hole, engaging portion 233 is fixed on lamp housing 211.In addition, the lower side in back plate 232 is also formed with screw hole, screw 234 are screwed into this screw hole from the outside of lamp housing 211, and back plate 232 is fixed on lamp housing 211.So, 232 quilt of back plate It is fixed in lamp house 2LR with the state of substantially vertical, the top plate 231 connecting with back plate 232 is also fixed in lamp house 2LR.This Outside, can be with the angle of micro-adjustment back plate 232 by adjusting these screws 234,235, it also can micro-adjustment top plate 231 therewith Angle.
Reflector 220 is fixed on the lower surface of top plate 231.Reflector 220 has reflector body portion 224 and coating Portion 223.Reflector body portion 224 is formed from a resin.Coating portion 223 be on the surface of the front side in reflector body portion 224, The film being made of the metals such as aluminium or metal oxide.The surface in this coating portion 223 is by the reflecting surface 223r as light.Reflection Face 223r is, for example, the concave shape by being formed by opening direction for the free form surface based on the parabola of front side.More For body, the shape in the section of the vertical direction of reflecting surface 223r is under vertex when keeping substantially parabolical central axis horizontal The shape of side, the shape in the section of the horizontal direction of reflecting surface 223r is the shape comprising substantially parabolical vertex.However, anti- The parabola for penetrating the parabola in the section of the vertical direction of face 223r and the section of horizontal direction is also possible to mutually different throwing Object line.In addition, the shape of the reflecting surface 223r in the section of horizontal direction is also possible to be also possible to not based on parabola Shape or other concave shapes based on for example elliptical a part.
In addition, there are two dipped headlight light-emitting components 241,242 for configuration in the lower surface of top plate 231.Dipped headlight, which is used, to shine Element 241,242 projects the light at least as a part of dipped headlight respectively.Dipped headlight is with light-emitting component 241,242 along front and back To being arranged side-by-side.It throws on the basis that dipped headlight light-emitting component 242 is configured in the cross sectional shape of the vertical direction of reflecting surface 223r The near focal point of object line, dipped headlight light-emitting component 241 are configured in than dipped headlight light-emitting component 242 rearward.
LED (Light Emitting Diode: light-emitting diodes is for example respectively adopted with light-emitting component 241,242 in dipped headlight Pipe).Dipped headlight is connected emission control circuit 240 with light-emitting component 241,242 respectively, can be according to from light emitting control electricity The power supply on road 240 and project light.In addition, as described below, emission control circuit 240 is controlled when high beam is lighted and is sent out from dipped headlight The intensity for the light that optical element 241,242 projects.
<lamps and lanterns 21b>
Figure 13 and Figure 12 is again it is indicate the figure of the section of the vertical direction of lamps and lanterns 21b.That is, Figure 13 is a left side of lamps and lanterns 21b The sectional view of the vertical direction of right direction approximate centre.In the explanation of lamps and lanterns 21b, about identical or same as lamps and lanterns 21a Deng constituent element, situation, otherwise marks same appended drawing reference and omits repeated explanation unless otherwise specifically stated.Such as Figure 13 institute Show, the lamps and lanterns 21b of a part as headlight for automobile 21, the lamps and lanterns for having shell 210 and being incorporated in the shell 210 Unit 2LUb.Lamp unit 2LUb in present embodiment is by the lamp unit as high beam.
Lamp unit 2LUb is incorporated in lamp house 2LR.In lamp unit 2LUb, a high beam light-emitting component 251 Configuration is in the lower surface of top plate 231.High beam at least projects the light of a part as high beam with light-emitting component 251.In addition, Before the parabolical focus in basis of the section configuration for the vertical direction that high beam light-emitting component 251 configured in reflecting surface 223r Side.High beam is with light-emitting component 251 for example, by using LED.High beam light-emitting component 251 is connected emission control circuit 250, Light can be projected according to the power supply from emission control circuit 250.
The movement and function and effect of the headlight for automobile 1 of present embodiment will be illustrated next.(A) of Figure 14 indicates close The light distribution patterns of light lamp, (B) of Figure 14 indicate that the light distribution patterns of high beam, (C) of Figure 14 indicate the light distribution patterns illuminated in the daytime.
> when < dipped headlight is lighted
In present embodiment, dipped headlight is irradiated by the light from two dipped headlights light-emitting component 241,242.
In (A) of Figure 14, the range that solid line indicates is the model of the illuminated light from dipped headlight light-emitting component 242 It encloses, the range that dotted line indicates is the range of the illuminated light from dipped headlight light-emitting component 241.As shown in Figure 11, Figure 12, two The major part of a light 2L41,2L42 projected from dipped headlight with light-emitting component 241 is reflected by reflecting surface 223r.This light 2L41, Among 2L42, the light projected from the forefront side region of the dipped headlight exit portion of light-emitting component 242 forms (A) institute of Figure 14 The "cut-off"line of the dipped headlight shown.In addition, dipped headlight light-emitting component 242 is configured in above-mentioned such reflecting surface 223r's The parabolical near focal point in basis of the cross sectional shape of vertical direction, the phase from the exit portion of dipped headlight light-emitting component 242 No matter partially being reflected with the light that region is projected in which of reflecting surface 223r, all become light generally parallel to each other after reflection. On the other hand, dipped headlight is configured in the rear of dipped headlight light-emitting component 242 with light-emitting component 241 as described above, anti- At least part for penetrating the light 2L42 of face 223r reflection is irradiated on the lower to the "cut-off"line than above-mentioned dipped headlight.In this way, shape The light distribution patterns of dipped headlight shown in (A) at Figure 14.
> when < high beam is lighted
In the present embodiment, high beam is in addition to by the light 2L42 from dipped headlight light-emitting component 242, also by from remote The light of light lamp light-emitting component 251 irradiates.As shown in figure 13, the light 2L51 projected from high beam with light-emitting component 251 quilt mostly Reflecting surface 223r reflection.High beam is configured in section of the vertical direction of reflecting surface 223r with light-emitting component 251 as described above In front of the parabolical focus in basis of face shape.Therefore, by least part of the reflecting surface 223r light 2L51 reflected to than upper The "cut-off"line for stating dipped headlight irradiates against the top.In addition, when high beam is lighted, by the control of emission control circuit 240 from The luminous intensity of the light of light 2L41,2L42 that dipped headlight light-emitting component 241,242 projects.Specifically, in the present embodiment, It is equally lit when dipped headlight is lighted with light-emitting component 242 with dipped headlight, and dipped headlight light-emitting component 241 is off.This Sample, can by light 2L42 from dipped headlight light-emitting component 242 and from the light 2L51 of high beam light-emitting component 251, Form wider light distribution patterns in above-below direction.That is, being capable of forming the width from the nearby side of vehicle to distant place from the point of view of driver The light distribution patterns of wide range.
> when illumination is lighted between < days
By a part among lamps and lanterns 21a~21c as illuminating lamps and lanterns in the daytime, illuminating light in the daytime is being irradiated In the case where, form the light distribution patterns illuminated in the daytime shown in (C) of Figure 14.
As described above, when high beam is lighted, passing through emission control circuit in the headlight for automobile 21 of present embodiment 240, a dipped headlight light-emitting component 242 is lit, and the light projected from a dipped headlight with light-emitting component 242 shines Different brightness when intensity is controlled so as to light from dipped headlight.Specifically, as described above, dipped headlight light-emitting component 242 It is lit in the same manner as when dipped headlight is lighted, and dipped headlight light-emitting component 241 is off.In this way, by high beam point At least one dipped headlight light-emitting component 242 is lighted when bright, and it is dimmed to be able to suppress the nearby side of vehicle 200 from the point of view of driver Situation.In addition, at least one dipped headlight light-emitting component 241 is off when high beam is lighted, thereby, it is possible to inhibit from driving The nearby side of vehicle 200 became bright situation from the point of view of the person of sailing.It, can be in this way in the headlight for automobile of present embodiment 21 It is appropriately controlled in brightness and range of exposures when high beam is lighted.
In addition, the dipped headlight being off when high beam is lighted, which is used, to shine in the headlight for automobile 21 of present embodiment Element 241, compared with the dipped headlight lighted when high beam is lighted is with light-emitting component 242, when dipped headlight is lighted from driving The nearby side of vehicle 200 is more irradiated from the point of view of member.In this way, being able to suppress remote by dipped headlight light-emitting component 241,242 irradiation lights The nearby side of vehicle 200 became bright situation from the point of view of driver when light lamp is lighted, and can inhibit the light of distant place and nearby side Light compared to seeming relatively darker situation.
In addition, the headlight for automobile 21 of present embodiment includes: the lamp unit 2LUb of high beam, with distance light Lamp light-emitting component 251, and reflect a reflector 220 of the light 2L51 projected from high beam with light-emitting component 251；And it is close The lamp unit 2LUa of light lamp with dipped headlight light-emitting component 241,242, and is reflected from dipped headlight light-emitting component 241, a reflector 220 of 242 light 2L41,2L42 projected.It is only difficult with the light of the lamp unit 2LUb from high beam When light distribution patterns to form high beam appropriate, by having the lamp unit 2LUb and dipped beam of high beam as so above-mentioned The lamp unit 2LUa of lamp can form the one of the light distribution patterns of high beam with the light of the lamp unit 2LUb from high beam Part, and with the light distribution patterns of the light reinforcement high beam of the lamp unit 2LUa from dipped headlight.
(the 7th embodiment)
Next, 5 and Figure 16 the 7th embodiment that the present invention will be described in detail referring to Fig.1.In addition, about with the 6th embodiment party The identical or same constituent element of formula, situation, otherwise marks identical symbol and omits duplicate theory unless otherwise specifically stated It is bright.
Figure 15 is the schematic diagram for indicating the horizontal direction section of the lamps and lanterns in the 7th embodiment of the invention.Figure 15 and figure 11 again it is the horizontal direction on the top of the lamps and lanterns 21a of present embodiment sectional view.In addition, Figure 16 indicates of the invention The schematic diagram of the vertical direction section of lamps and lanterns in 7th embodiment.Figure 16 and Figure 12 again it is present embodiment lamps and lanterns The sectional view of the vertical direction of the approximate centre of the left and right directions of 21a.
The lamps and lanterns 21a of present embodiment and above-mentioned first embodiment the difference is that, have a dipped headlight respectively With light-emitting component 242 and a high beam light-emitting component 251.It is close when dipped headlight is lighted in the lamps and lanterns 21a of present embodiment Light lamp light-emitting component 242 is lit, and high beam light-emitting component 251 is off.In addition, emission control circuit 240 exists It lights high beam light-emitting component 251 when high beam is lighted, and makes the hair of the light projected from dipped headlight light-emitting component 242 Light strength ratio dipped headlight is low when lighting.The so-called luminous intensity for making dipped headlight light-emitting component 242 reduces, and does not include dipped headlight and uses The case where light-emitting component 242 is off.
Make to use from dipped headlight by not extinguishing dipped headlight light-emitting component 242 when high beam is lighted as described above The luminous intensity for the light that light-emitting component 242 projects reduces, and from the point of view of driver, the nearby side of vehicle 200 brightens to a certain extent, But it can inhibit the phenomenon that excessively to brighten.
In addition, the lamp unit 2LUa of present embodiment includes high beam light-emitting component 251；The dipped headlight member that shines Part 242；And a reflector 220, reflection are projected from high beam light-emitting component 251 and dipped headlight light-emitting component 242 Light 2L42,2L51.One lamp unit 2LUa passes through with high beam light-emitting component 251, dipped headlight light-emitting component 242 and reflector 220, the light distribution patterns and distance light that dipped headlight is formed from the light of a lamp unit 2LUa can be used The light distribution patterns of lamp.Headlight for automobile can be miniaturized as a result,.
It above with respect to the present invention, is illustrated by taking above embodiment as an example, but the present invention is not limited to above-mentioned Embodiment.
For example, the number of dipped headlight light-emitting component and high beam light-emitting component is not particularly limited respectively.Cause This, such as the lamp unit 2LUa of above-mentioned 7th embodiment can also have multiple dipped headlight light-emitting components.In addition, above-mentioned The lamp unit 2LUa of 6th embodiment can also have three or more dipped headlight light-emitting components.Have more than two close When light lamp light-emitting component, preferably emission control circuit 240 controls multiple dipped headlights as follows when high beam is lighted and uses Light-emitting component.That is, preferably at least a dipped headlight is lit with light-emitting component, and an at least other dipped headlight is used and is shone Element is off or keeps luminous strength ratio dipped headlight low when lighting.In the case, it is off or that luminosity is lowered is close Light lamp light-emitting component, compared with the dipped headlight light-emitting component being lit when high beam is lighted, when dipped headlight is lighted from The nearby side of vehicle is more irradiated from the point of view of driver.
In addition, emission control circuit 240 is in high beam in the case where having more than two dipped headlight light-emitting components When lighting, preferably make the luminous intensity of the light projected from least one dipped headlight with light-emitting component identical when lighting with dipped headlight, And keep the luminous strength ratio dipped headlight of the light projected from least other dipped headlights with light-emitting component low when lighting.Pass through Dipped headlight light-emitting component is controlled like this, when dipped headlight is lighted, the nearby side of vehicle 200 is bright enough from the point of view of driver, And it is able to suppress the case where nearby side of vehicle 200 excessively brightens from the point of view of driver when high beam is lighted.
In addition, in the case where having more than two dipped headlight light-emitting components, can also when high beam is lighted from The reduction when luminous intensity for the light that whole dipped headlights are projected with light-emitting component is all lighted than dipped headlight.
In addition, in the above-described embodiment, the number of lamps and lanterns is not specifically limited.In the case where having multiple lamps and lanterns, The position of each lamps and lanterns is not specifically limited.Thus, for example in the above-described embodiment, lamps and lanterns 21a can be only fitted to vehicle 200 Outermost, lamps and lanterns 21a also can be only fitted to the bosom side of vehicle 200.
In addition, in the above-described embodiment, in dipped headlight with light-emitting component 241,242 or high beam light-emitting component It is illustrated for 251 lower section configuration 220 mode of reflector, but reflector 220 can also be arranged on dipped headlight hair The top of optical element 241,242 or high beam light-emitting component 251.At this point, the position in the front-back direction of each light-emitting component is closed It is opposite with above embodiment.
In addition, in above embodiment, have been illustrated use LED as dipped headlight light-emitting component 241,242 and The case where high beam light-emitting component 251, but dipped headlight light-emitting component 241,242 and high beam light-emitting component 251 It can be laser light source or other light sources.
In addition, in the above-described embodiment, have been illustrated make the reflection of reflector 220 from dipped headlight light-emitting component 241, 242 and the lamps and lanterns of the so-called parabolic shape of light that are projected with light-emitting component 251 of high beam, however the preceding photograph of vehicle of the invention Lamps and lanterns used by lamp are not limited to which.Lamps and lanterns used by headlight for automobile of the invention are also possible to make from luminous The lamps and lanterns for the projection type that the light that element projects is projected by convex lens, or make the light for carrying out self-emission device directly by lens The lamps and lanterns of the Directing lenses type of injection.
In addition, in the case where having multiple dipped headlight light-emitting components, when high beam is lighted, emission control circuit It can make at least one other dipped headlight light-emitting component of the luminous strength ratio of the light of at least one dipped headlight light-emitting component Luminous intensity it is high.In this case, it is preferable to which the dipped headlight light-emitting component that luminous intensity is relatively lowered compares luminous intensity The dipped headlight improved relatively more irradiates the nearby side of vehicle with light-emitting component.It shines in this way, being used by the multiple dipped headlights of control Element, when high beam is lighted, a distant place is easy to become bright and the nearby side of vehicle can be inhibited excessively to become from the point of view of driver It is bright.
In addition, in explanation before, having been illustrated makes to project from dipped headlight with light-emitting component when high beam is lighted Light example dimmed when being lighted than dipped headlight, however can also make to project from dipped headlight with light-emitting component when high beam is lighted Light it is bright when being lighted than dipped headlight.When high beam is lighted, pass through the light that will be projected from least one dipped headlight with light-emitting component Luminous intensity control into brightness different when being lighted from dipped headlight, enable to the nearby side of from the point of view of driver vehicle to become Brightness appropriate.
[Industrial Availability]
As described above, by means of the invention it is possible to provide it is a kind of can also be formed with a reflector it is desired The headlight for automobile of the light distribution patterns of the light distribution patterns and high beam of dipped headlight.Through the invention, a kind of energy can also be provided Enough suitably control brightness when high beam is lighted and the headlight for automobile of range of exposures.The headlight for automobile can be in vapour It is used in field of the headlight for automobile of vehicle etc. etc..

Claims (14)

1. a kind of headlight for automobile characterized by comprising
Lamp unit has at least one high beam light-emitting component, at least one dipped headlight light-emitting component, a reflection The reflector of the light projected from above-mentioned high beam light-emitting component and above-mentioned dipped headlight with light-emitting component,
Above-mentioned high beam light-emitting component and above-mentioned dipped headlight are arranged side-by-side along the longitudinal direction with light-emitting component,
Total face of the light-emitting surface of the gross area of the light-emitting surface of above-mentioned high beam light-emitting component and above-mentioned dipped headlight light-emitting component Product is different from each other.
2. headlight for automobile as described in claim 1, which is characterized in that
The number of above-mentioned high beam light-emitting component and the number of above-mentioned dipped headlight light-emitting component are different from each other.
3. headlight for automobile as described in claim 1, which is characterized in that
The number of above-mentioned high beam light-emitting component is identical with the number of above-mentioned dipped headlight light-emitting component,
The light-emitting surface of the area of the light-emitting surface of one above-mentioned high beam light-emitting component and an above-mentioned dipped headlight light-emitting component Area it is different from each other.
4. the headlight for automobile as described in any one of claims 1 to 3, which is characterized in that
The shape of the light-emitting surface of the shape of the light-emitting surface of above-mentioned dipped headlight light-emitting component and above-mentioned high beam light-emitting component it One of it is laterally longer than another one.
5. the headlight for automobile as described in any one of claims 1 to 3, which is characterized in that
The shape of the light-emitting surface of the shape of the light-emitting surface of above-mentioned high beam light-emitting component and above-mentioned dipped headlight light-emitting component it One of it is longer than another one front-rear direction.
6. the headlight for automobile as described in any one of Claims 1 to 5, which is characterized in that
Have multiple above-mentioned lamp units,
In an above-mentioned lamp unit, the shape of the light-emitting surface of above-mentioned dipped headlight light-emitting component is used than above-mentioned high beam to shine The shape of the light-emitting surface of element is laterally long,
In other above-mentioned lamp units, the shape of the light-emitting surface of above-mentioned high beam light-emitting component is used than above-mentioned dipped headlight to shine The shape of the light-emitting surface of element is laterally long.
7. a kind of headlight for automobile characterized by comprising
At least one high beam light-emitting component,
At least one dipped headlight light-emitting component, and
Emission control circuit lights at least one above-mentioned dipped headlight with light-emitting component when high beam is lighted, and will be from The luminous intensity for the light that at least one above-mentioned dipped headlight is projected with light-emitting component is controlled into brightness different when lighting from dipped headlight.
8. headlight for automobile as claimed in claim 7, which is characterized in that
Above-mentioned emission control circuit makes the light projected from least one above-mentioned dipped headlight light-emitting component when high beam is lighted Luminous strength ratio dipped headlight is low when lighting.
9. headlight for automobile as claimed in claim 7, which is characterized in that
Have more than two above-mentioned dipped headlight light-emitting components,
Above-mentioned emission control circuit makes the light projected from least one above-mentioned dipped headlight light-emitting component when high beam is lighted It is identical when luminous intensity is lighted with dipped headlight.
10. the headlight for automobile as described in any one of claim 7~9, which is characterized in that
Have more than two above-mentioned dipped headlight light-emitting components,
When high beam is lighted, above-mentioned emission control circuit makes the luminous strength ratio of at least one above-mentioned dipped headlight light-emitting component The luminous intensity of other at least one above-mentioned dipped headlight light-emitting components is high, and luminous intensity is by the above-mentioned dipped headlight of relative reduction Vehicle nearby side is more irradiated with light-emitting component with the light-emitting component above-mentioned dipped headlight improved more opposite than luminous intensity.
11. headlight for automobile as claimed in claim 7, which is characterized in that
Have more than two above-mentioned dipped headlight light-emitting components,
Above-mentioned emission control circuit lights at least one above-mentioned dipped headlight with light-emitting component when high beam is lighted, and makes At least other above-mentioned dipped headlight is extinguished with light-emitting component.
12. headlight for automobile as claimed in claim 11, which is characterized in that
The above-mentioned dipped headlight being off when high beam is lighted is with light-emitting component than the above-mentioned dipped beam lighted when high beam is lighted Lamp light-emitting component more illuminates the nearby side of vehicle when dipped headlight is lighted.
13. the headlight for automobile as described in any one of claim 7~12 characterized by comprising
Lamp unit with the high beam light-emitting component, dipped headlight light-emitting component and is reflected from above-mentioned remote One reflector of the light that light lamp light-emitting component and above-mentioned dipped headlight are projected with light-emitting component.
14. the headlight for automobile as described in any one of claim 7~12 characterized by comprising
The lamp unit of high beam, it is first with shining from above-mentioned high beam with above-mentioned high beam light-emitting component, and reflection One reflector of the light that part projects, and
The lamp unit of dipped headlight, it is first with shining from above-mentioned dipped headlight with above-mentioned dipped headlight light-emitting component, and reflection One reflector of the light that part projects.
CN201811122320.9A 2017-10-06 2018-09-26 Vehicle headlamp Active CN109630974B (en)

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