CN110274210A

CN110274210A - Headlight for automobile

Info

Publication number: CN110274210A
Application number: CN201910175971.2A
Authority: CN
Inventors: 末次麻希子; 河合宏树; 花田旭; 高田贤一
Original assignee: Koito Manufacturing Co Ltd
Current assignee: Koito Manufacturing Co Ltd
Priority date: 2018-03-15
Filing date: 2019-03-08
Publication date: 2019-09-24
Anticipated expiration: 2039-03-08
Also published as: CN209744278U; CN110274210B

Abstract

The purpose of the present invention is to provide a kind of headlight for automobile for being able to suppress enlargement.Headlight for automobile has: the first light-emitting component, projects the first light for becoming dipped beam, and the normal of the exit facet of the first light is towards front obliquely downward；Second light-emitting component is configured at the lower section of the first light-emitting component and projects the second light, and the normal of the exit facet of the second light is towards front oblique upper；Light shielding part extends forwards between the first light-emitting component and the second light-emitting component；And projecting lens, it is configured at the position than light shielding part on the front, a part of a part and the second light for the first light is directed through, light shielding part upper surface have make first reflecting surface of the another part of the first light to projecting lens lateral reflection, and having in lower surface makes second reflecting surface of the another part of the second light to projecting lens lateral reflection, and the front end of light shielding part has the step of up and down direction corresponding with the shape of the "cut-off"line of the light distribution patterns of dipped beam.

Description

Headlight for automobile

Technical field

The present invention relates to a kind of headlight for automobile.

Background technique

As using automobile head lamp as the headlight for automobile of representative, it is known to equipped with shining at night front Bright dipped beam is used with the vehicle except light source also equipped with the distance light light source illuminated compared with the dipped beam to a distant place etc. Headlamp.Light from distance light light source includes the light irradiated compared with dipped beam and upwards.Additionally, it is known that having above-mentioned light source The headlight for automobile being provided in a lamp unit.

Such as the following patent document 1 discloses a kind of lamps apparatus for vehicle, having the first light for projecting light upwards Source, be configured to project from upside by the first reflector that first light source covers, downwards the second light source of light and be configured to from The second reflector that downside covers second light source.In the lamps apparatus for vehicle, projected from first light source and by the first reflector It light after reflection and projects from second light source and is penetrated by the light after the reflection of the second reflector in first light source and second light source Front configuration projecting lens and be irradiated.

Existing technical literature

Patent document

Patent document 1: Japanese Unexamined Patent Publication 2014-229441 bulletin

Summary of the invention

Problem to be solved by the invention

In the lamps apparatus for vehicle disclosed in above patent document 1, the light projected from first light source is relative to projecting lens Optical axis direction above project.It is saturating in the projection in the front of first light source in order to make the light projected upwards in this way be incident upon configuration Mirror needs to reflect the light projected from first light source forwards.Such first reflector setting Significantly to protrude forwards to cover first light source.Second reflector is similarly set as larger protrusion forwards.But If the first reflector and the enlargement of the second reflector, lamps apparatus for vehicle are easy to become enlargement.

Therefore, the purpose of the present invention is to provide a kind of headlight for automobile for being able to suppress enlargement.

The method for solving problem

To solve the above-mentioned problems, headlight for automobile of the invention is characterized in that having: the first light-emitting component, Project the first light for becoming dipped beam, the normal of the exit facet of above-mentioned first light is towards front obliquely downward；Second light-emitting component, matches Be placed in the lower section of above-mentioned first light-emitting component and project the second light, the normal of the exit facet of above-mentioned second light towards front it is oblique on Side；Light shielding part extends forwards between above-mentioned first light-emitting component and above-mentioned second light-emitting component；And projecting lens, It is configured at the position than above-mentioned light shielding part on the front, and a part of a part and above-mentioned second light for above-mentioned first light is straight Transmission is connect, above-mentioned light shielding part has the first reflecting surface for reflecting another part of above-mentioned first light in upper surface, so that on Another part of the first light is stated through above-mentioned projecting lens, and having in lower surface reflects another part of above-mentioned second light The second reflecting surface so that another part of above-mentioned second light penetrate above-mentioned projecting lens, the front end of above-mentioned light shielding part has The step of up and down direction corresponding with the shape of the "cut-off"line of the light distribution patterns of above-mentioned dipped beam.

In above-mentioned headlight for automobile, it is saturating that a part of a part of the first light and the second light is directed through projection Mirror.That is, a part of the first light and a part of the second light will not respectively be reflected but be incident upon projecting lens and penetrate Projecting lens.In this way, due to being emitted directly toward on a part of a part of the first light and the second light to projecting lens, Therefore above-mentioned headlight for automobile does not need the reflector of such large size documented by above patent document 1.In addition, the first light Another part be configured in the first light-emitting component lower section light shielding part the first reflective surface and be incident upon projection lens, Another part of second light is configured in the second reflective surface of the light shielding part of the top of the second light-emitting component and is incident upon throwing Shadow lens.Therefore, the first light and the second light can be effectively utilized.Further, it in above-mentioned headlight for automobile, utilizes The front end of light shielding part forms the "cut-off"line of the light distribution patterns of dipped beam.As described above, in above-mentioned headlight for automobile, even if Without using large-scale reflector, the first light and the second light can also be made expeditiously to be incident upon projection lens and form matching for dipped beam The "cut-off"line of light.Thus, it is possible to inhibit the enlargement of above-mentioned headlight for automobile.

Furthermore it is preferred that above-mentioned first light-emitting component is in left-right direction side by side equipped with multiple, with specific above-mentioned the Multiple above-mentioned first light-emitting components for the side being configured on left and right directions on the basis of one light-emitting component and it is configured at the other side Multiple above-mentioned first light-emitting components setting height it is different.

In the case where dipped beam is irradiated to vertical guide, the "cut-off"line of the light distribution patterns of dipped beam is using specific position as base Quasi- and side and the other side in the lateral direction make highly different.It is thus preferred that forming the shading of "cut-off"line The side and the other side of the front end in portion on the basis of specific position and in the lateral direction keep height different.Here, by such as It is above-mentioned to configure height difference for multiple first light-emitting components like that, it is easy to make the position of the exit facet of each first light-emitting component It is matched with the height of the front end of light shielding part.Therefore, it is accessible to be formed from the first light that each first light-emitting component projects close Near the front end of the light shielding part of the "cut-off"line of the light distribution patterns of light, light and shade cut-off can be improved in the light distribution patterns of dipped beam Luminosity near line.

Furthermore it is preferred that above-mentioned specific first light-emitting component and being configured to clamp above-mentioned specific first light-emitting component Above-mentioned first light-emitting component of a pair between equispaced be less than other multiple above-mentioned first light-emitting components adjacent to each other Equispaced.

By adjusting the equispaced of multiple first light-emitting components as described above, center in left and right directions is enabled to Two end sides that the equispaced of multiple first light-emitting components nearby configured adjacent to each other is less than in left and right directions are adjacent to each other The equispaced of multiple first light-emitting components of ground configuration.Therefore, it is equally spaced configured with the first light-emitting component of identical quantity The case where compare, the immediate vicinity of the light distribution patterns of dipped beam can be made to become while the light distribution patterns for making dipped beam extend to the left and right It must become clear.

Furthermore it is preferred that when viewed from the front, the front end institute of above-mentioned specific first light-emitting component and above-mentioned light shielding part The above-mentioned step having is overlapped in the up-down direction, is configured in left and right directions on the basis of above-mentioned specific first light-emitting component On side multiple above-mentioned first light-emitting components be set to it is lower than configuring multiple above-mentioned first light-emitting components in the other side Position, the front end of above-mentioned light shielding part is formed as on the basis of above-mentioned step and the side on left and right directions is lower than the other side.

By configuring multiple first light-emitting components like this and forming the front end of light shielding part, can be along light shielding part before Multiple first light-emitting components of the shape configuration at end.Therefore, the first light projected from each first light-emitting component is easier to reach shape Near front end at the light shielding part of the "cut-off"line of the light distribution patterns of dipped beam, can further it be mentioned in the light distribution patterns of dipped beam Luminosity near high "cut-off"line.

Furthermore it is preferred that the rear end of above-mentioned first reflecting surface has the "cut-off"line with the light distribution patterns of above-mentioned dipped beam The corresponding step of shape.

By being respectively provided with the rear end of the first reflecting surface of the front end of light shielding part and the upper surface of light shielding part and dipped beam Light distribution "cut-off"line the corresponding step of shape, thus make the first light be easier reach light shielding part front end near.Cause This can further increase the luminosity near "cut-off"line in the light distribution patterns of dipped beam.

Furthermore it is preferred that when viewed from the front, above-mentioned step possessed by the front end of above-mentioned light shielding part and above-mentioned first Above-mentioned step possessed by the rear end of reflecting surface is overlapped in the up-down direction.

By forming light shielding part like this, it is easier the first light near the front end for reaching light shielding part.Therefore, in dipped beam In light distribution patterns, the luminosity near "cut-off"line can be further increased.

Invention effect

As described above, according to the present invention, it is possible to provide be able to suppress the headlight for automobile of enlargement.

Detailed description of the invention

Fig. 1 is the figure for indicating headlight for automobile involved in embodiments of the present invention.

Fig. 2 is the perspective view of lamp unit and bearing unit shown in FIG. 1.

Fig. 3 is exploded perspective view when observing from the front lamp unit shown in FIG. 1.

Fig. 4 be observe from the rear lamp unit shown in FIG. 1 when exploded perspective view.

Fig. 5 is the perspective view of radiator.

Fig. 6 is the schematic cross sectional view of radiator.

Fig. 7 is the main view of first substrate, the second substrate and flexible printed circuit substrate.

Fig. 8 is the figure at the position surrounded by dotted line VIII that amplification indicates in Fig. 7.

Fig. 9 is the figure for indicating to carry first substrate situation on a heat sink.

Figure 10 is the figure for indicating to carry first substrate and the second substrate situation on a heat sink.

Figure 11 is the figure for indicating to load the second substrate situation on a heat sink.

Figure 12 is the schematic cross sectional view of the flexible printed circuit substrate in Figure 10.

Figure 13 is the perspective view of light source unit.

Figure 14 is the main view of light source unit.

Figure 15 is the figure at the position surrounded by dotted line XV that amplification indicates in Figure 14.

Figure 16 is the schematic cross sectional view of light source unit.

Figure 17 is perspective view when observing from the front support plate.

Figure 18 be observe from the rear support plate when perspective view.

The figure of the second substrate in state representation 10 when Figure 19 is to overlook.

Figure 20 is indicated the figure of the fixed situation on a heat sink of the second substrate.

Figure 21 is the schematic cross sectional view of lamp unit.

Figure 22 is the figure for indicating light distribution patterns.

Description of symbols

1: headlight for automobile；3: lamp unit；20: projecting lens；40: reflector element；43: light shielding part；43a: the One reflecting surface；43as: convex surface part；43c: front end；43cs: step；43d: rear end；43ds: step；55: the first light-emitting components； 63: the second light-emitting components.

Specific embodiment

Hereinafter, illustrated for implementing the mode of headlight for automobile according to the present invention together with attached drawing.Below Illustrated embodiment is to be not intended to limit the invention explanation for the ease of understanding the present invention.This Invention can be changed within the scope of its spirit according to following implementation, be improved.

Firstly, being illustrated to the structure of the headlight for automobile of present embodiment.

Fig. 1 is the figure for indicating to have the lamps and lanterns of light source unit involved in present embodiment.In the present embodiment, lamps and lanterns It is set as headlight for automobile.Headlight for automobile is usually respectively equipped on the left and right directions in the front of vehicle, left and right Headlamp is set as structure substantially symmetric in the lateral direction.Therefore, in the present embodiment, to the preceding photograph of vehicle of side Lamp is illustrated.

Make as shown in Figure 1, the headlight for automobile 1 of present embodiment has shell 2, lamp unit 3 and bearing unit 4 For primary structure.In addition, Fig. 1 is the side view of headlight for automobile 1, in Fig. 1, for ease of understanding, table is come with cross-sectional view Show shell 2.

Next, being illustrated to shell 2.

Shell 2 has lamp housing 11, front cover 12 and rear cover 13 as primary structure.The front openings of lamp housing 11, Lamp housing 11 is fixed with the front cover 12 with translucency with by the closure of openings.It is formed at the rear of lamp housing 11 than front Be open small opening, is fixed with rear cover 13 in lamp housing 11 with by the closure of openings.

By lamp housing 11, by the front cover 12 of the closure of openings in the front of the lamp housing 11 and by the rear of the lamp housing 11 Closure of openings rear cover 13 formed space be set as lamp house R.Lamp unit 3 is contained in lamp house R and bearing is single Member 4.

Next, being illustrated to bearing unit 4.

Fig. 2 is the perspective view of lamp unit and bearing unit shown in FIG. 1.As shown in Figure 1 and Figure 2, bearing unit 4 has Standby bracket 15, the first linking arm 16a and the second linking arm 16b are as primary structure.Bracket 15 is set as box-shaped body, has Base portion 15a, column portion 15b, 15c extended upwards respectively from the left and right ends portion of base portion 15a that right and left upwardly extends And extend in the lateral direction and the supporting part 15d with the connection of the upper end of two column portions 15b, 15c.In base portion 15a and Lamp unit 3 is configured between supporting part 15d.The top of lamp unit 3 and the supporting part 15d of bracket 15 pass through the first linking arm 16a connection, the lamp unit 3 are suspended to the supporting part 15d of bracket 15.In addition, the lower part of lamp unit 3 and the pedestal of bracket 15 Portion 15a is linked by the second linking arm 16b, and the side base portion 15a of the second linking arm 16b is connected to through not shown gear etc. The driving unit (not shown) installed on base portion 15a.Like this by lamp unit 3 by the first linking arm 16a and Second linking arm 16b is mounted on bracket 15.Utilize the driving unit (not shown) installed on base portion 15a, lamp unit 3 It can rotate in the lateral direction relative to bracket 15 and topple over forward and backward.In addition, bracket 15 passes through mechanism (not shown) It is fixed on shell 2.

Next, being illustrated to lamp unit 3.

Fig. 3 is exploded perspective view when observing from the front lamp unit shown in FIG. 1.Fig. 4 is observe from the rear shown in Fig. 1 Lamp unit when exploded perspective view.In addition, in Fig. 3, Fig. 4, also describe the first linking arm 16a of bearing unit 4 with And the second linking arm 16b.As shown in Figure 3, Figure 4, the lamp unit 3 of present embodiment has projecting lens 20, lens carrier 25 And light source unit LU is as primary structure.

Next, being illustrated to light source unit LU.

As shown in Figure 3, Figure 4, the light source unit LU of present embodiment has support plate 30, reflector element 40, the first base Plate 50,60, two flexible printed circuit substrates 70 of the second substrate, radiator 80 and fan 81 are used as primary structure.

Next, being illustrated to radiator 80.

Fig. 5 is the perspective view of radiator, and Fig. 6 is the schematic cross sectional view of radiator.In addition, also describing fan in Fig. 6 81.As shown in Fig. 4~Fig. 6, radiator 80 is for example formed by metal, have the first bottom plate 82, the second bottom plate 83, peripheral wall portion 84 with And cowling panel 85 is used as primary structure.

First bottom plate 82 is directed towards the plate body that front oblique upper and left and right extend.In the present embodiment, first The front surface 82f of bottom plate 82 is formed with the first mounting surface 86, the first flank 87, boss 88 and recess portion 89.First mounting surface 86 It is to be set as outstanding forwards from the front surface 82f of the first bottom plate 82 for the face of at least part mounting of first substrate 50 The end face of pedestal 90, it is substantially parallel with the front surface 82f of the first bottom plate 82.In addition, substantially parallel in this specification has included Complete parallel state, and further include the state that a side tilts 1 ° or so relative to another party from the state being substantially parallel.It should The outer rim 86e positioned at lower end in the outer rim of first mounting surface 86 extends in the lateral direction.

As shown in figure 5, being formed with the first flank 87 in the region of the downside of the front surface 82f of the first bottom plate 82, this first Flank 87 protrudes forwards from front surface 82f.Therefore, normal slope of first flank 87 relative to the first mounting surface 86.It is bowing In the case where the first mounting surface 86, which extends upward from below, and relative to the first mounting surface 86 to Incline upward.In the present embodiment, the shape in the section vertical with length direction of the first flank 87 is set as circle.

Boss 88 there are two being formed in the position more upper than the first flank 87, the boss 88 is in the same manner as the first flank 87 It is protruded forwards from the front surface 82f of the first bottom plate 82.Therefore, the normal that boss 88 is respectively relative to the first mounting surface 86 inclines Tiltedly.In the case where overlooking the first mounting surface 86, each boss 88 extends upward from below, relative to the first mounting surface 86 To incline upward.Outer peripheral surface in the downside of each boss 88 is formed with the bearing surface 88s substantially vertical with the first mounting surface 86. In addition, it is substantially vertical including completely vertical state in this specification, and further include a side from completely vertical state 1 ° or so of state is tilted relative to another party.In the present embodiment, each convex in the case where overlooking the first mounting surface 86 The bearing surface 88s of platform 88 be set as left and right extend plane, be set as in the case where overlooking the first mounting surface 86 with first rib Extending direction, that is, the up and down direction in portion 87 is not parallel.

On the right side and the position in left side is respectively formed with recess portion 89 than the first mounting surface 86.The recess portion 89 is the first bottom The position that the front surface 82f of plate 82 is recessed in the side opposite with 86 side of the first mounting surface.In the present embodiment, recess portion 89 is such as The aftermentioned recess like that in vertical section is at arc-shaped.

Second bottom plate 83 is directed towards the plate body that front obliquely downward and left and right extend.The outer rim of the upside of second bottom plate 83 It is connect with the outer rim of the downside of the first bottom plate.In the present embodiment, the second load is formed in the front surface 83f of the second bottom plate 83 Set face 91, the second flank 92, flank reinforcement part 93, protrusion 94 and two boss 100.Second mounting surface 91 is for the second substrate The face of 60 at least part mounting is set as the end face from the front surface 83f of the second bottom plate 83 pedestal 95 outstanding forwards, It is substantially parallel with the front surface 83f of the second bottom plate 83.Therefore, the second mounting surface 91 to 60 side of the second substrate extend normal with The normal of first mounting surface 86 extended to 50 side of first substrate intersects, angle formed by the first mounting surface 86 and the second mounting surface 91 Degree is less than 180 degree.Thus, the first mounting surface 86 and the second mounting surface 91 are not parallel to each other, and first substrate 50 and the second base 60 angulation of plate is again smaller than 180 degree.In addition, since the first bottom plate 82 and the second bottom plate 83 are plate body, first The back side 82b of bottom plate 82 is tilted relative to the back side 83b of the second bottom plate 83, the back side 82b of the first bottom plate 82 and the second bottom plate 83 Back side 83b angulation be greater than 180 degree.Specifically, the back side 82b of the first bottom plate 82 inclines obliquely upward towards front Tiltedly, the back side 83b of the second bottom plate 83 is oliquely downward tilted towards front.In addition, Fig. 6 is the front surface with the first bottom plate 82 The front surface 83f of 82f and the second bottom plate 83 vertical cross-sectional view.As described above, the first bottom plate 82 and the second bottom plate 83 divide Not Wei plate body, therefore Fig. 6 is also the section view vertical with the back side 83b of the back side 82b of the first bottom plate 82 and the second bottom plate 83 Figure.In addition, the mounting of outer rim 91e and first for being located at the upper end as 86 side of the first mounting surface in the outer rim of the second mounting surface 91 The outer rim 86e for being located at the lower end as 91 side of the second mounting surface in the outer rim in face 86 is substantially parallel.

As shown in figure 5, being formed with the second flank 92 in the region of the downside of the front surface 83f of the second bottom plate 83, this second Flank 92 protrudes forwards from the front surface 83f of the second bottom plate 83.Therefore, method of second flank 92 relative to the second mounting surface 91 Line inclination.In the case where overlooking the second mounting surface 91, which extends from above towards lower section, carries relative to second Face 91 is set to roll downwards tiltedly.In the present embodiment, the shape in the section vertical with length direction of the second flank 92 is set as It is round.In addition, the second flank 92 and above-mentioned first flank 87 be set as it is substantially parallel.In the extending direction from the first flank 87 The front end side as the first flank 87 forward observation in the case where, being capable of the second mounting surface of visuognosis 91.In addition, from It, being capable of visuognosis in the case where the forward observation of the front end side as the second flank 92 in the extending direction of second flank 92 First mounting surface 86.

It is formed with flank reinforcement part 93 on the downside of the outer peripheral surface of the second flank 92, the flank reinforcement part 93 and the second bottom plate 83 front surface 83f connection.The second flank 92 is inhibited to roll downwards relative to the second mounting surface 91 using the flank reinforcement part 93 ?.In addition, improving the intensity of the second flank 92 compared with not having the case where flank reinforcement part 93.In the present embodiment, Flank reinforcement part 93 is set as not contacting with the second substrate 60.

Protrusion 94 is formed in the two sides of the left and right directions of the second bottom plate 83.Preceding table of each protrusion 94 from the second bottom plate 83 Face 83f is prominent to the normal direction of the second mounting surface 91.It is respectively formed in the upside of each protrusion 94 and the outer peripheral surface of downside There is the bearing surface 94s substantially vertical with the second mounting surface 91.In the present embodiment, the case where overlooking the second mounting surface 91 Under, bearing surface 94s be set as left and right extend plane, bearing surface 94s be set as when overlooking the second mounting surface 91 with work Up and down direction for the extending direction of the second flank 92 is not parallel.In addition, method of above-mentioned second flank 92 in the second mounting surface 91 It is more more prominent than the protrusion 94 on line direction.

It is formed with boss 100 in the two sides of the left and right directions of the second bottom plate 83, above-mentioned protrusion 94 is located at two boss 100 Between.Each boss 100 is protruded from the front surface 83f of the second bottom plate 83 forwards substantially in parallel with the second flank 92.It is each The front end of boss 100 is set as substantially vertical and the plane substantially vertical with the projected direction of the boss 100.In addition, this explanation Substantially vertical in book includes the state of complete vertical, and further includes the shape that 1 ° or so is tilted from the state of complete vertical State.In the front end of each boss 100, negative thread 100a is formed with from end face along boss 100.

Before the outer peripheral surface and second bottom plate 83 more upper than pedestal 95 of the downside of the pedestal 90 in the first bottom plate 82 Flow member recess portion 96 is formed between the 83f of surface.Two faces are from 86 side of the first mounting surface towards 91 side of the second mounting surface Arrangement, two face angulations are less than 180 degree.Flow member is connect with recess portion 96 with two faces.In present embodiment In, as shown in fig. 6, the shape in the vertical section of flow member recess portion 96 is set as approximate V shape.In addition, to flow member It is not particularly limited with the shape in the vertical section of recess portion 96, such as also can be set to U-shaped.

As shown in figure 5, being formed with the face of recess portion 96 towards front protrusion 97 outstanding in regulation flow member.Protrusion 97 It is more more prominent than the first mounting surface 86 in the normal direction of the first mounting surface 86.Outer peripheral surface in the upside of protrusion 97 is formed with The bearing surface 97s substantially vertical with the first mounting surface 86.Bearing surface 97s is positioned at the boss 88 than being formed on the first bottom plate 82 The position of bearing surface 88s on the lower.In the present embodiment, the outer peripheral surface of flow member recess portion 96 and the downside of pedestal 90 and The front surface 83f connection of second bottom plate 83 more upper than pedestal 95.Therefore, protrusion 97 crosses flow member in the up-down direction With recess portion 96.In addition, in the present embodiment, there are two protrusions 97 for formation, and in the case where overlooking the first mounting surface, bearing surface 97s is set as the plane extended along left and right, and bearing surface 97s is set as in the case where overlooking the first mounting surface 86 and as first The up and down direction of the extending direction of flank 87 is not parallel.

Peripheral wall portion 84 is set as the cylindrical body extended along the longitudinal direction.As shown in figure 4, a part of the front end of peripheral wall portion 84 It is fixed on the back side 82b of the first bottom plate 82 and back side 83b of the second bottom plate 83.The rear end of peripheral wall portion 84 be set as open end and It is formed with opening 84H.In the present embodiment, peripheral wall portion 84 is by a pair of sidewalls 84a, 84a, upper wall 84b and lower wall 84c structure At.A pair of sidewalls 84a, 84a is the plate body for separating defined compartment of terrain and extending along front and back and up and down.A pair of sidewalls 84a, Outer rim and first bottom plate 82 of the outer rim of the front side of 84a from the outer rim of the upside of the first bottom plate 82 to the downside of the second bottom plate 83 The back side 83b connection of back side 82b and the second bottom plate 83.As shown in fig. 6, upper wall 84b is positioned at the upside than the first bottom plate 82 Outer rim position against the top and connection and will prolong along front and back and left and right between the outer rim of the upside of a pair of sidewalls 84a, 84a The plate body stretched.Lower wall 84c be positioned at the downside than the second bottom plate 83 outer rim position on the lower and by a pair of sidewalls 84a, Connection and the plate body extended along front and back and left and right between the outer rim of the downside of 84a.

It is formed with as defined in the outer rim of the upside of the inner surface and the first bottom plate 82 of such upper wall 84b in radiator 80 First blow vent 98a.First blow vent 98a is at than the interconnecting piece 99 of the first bottom plate 82 and the second bottom plate 83 position on the front It is configured at the position that 82 side of the first bottom plate is leaned on than interconnecting piece 99.In addition, radiator 80 be formed with by lower wall 84c inner surface and Second blow vent 98b as defined in the outer rim of the downside of second bottom plate 83.Second blow vent 98b is than the first bottom plate 82 and the second bottom The position that 83 side of the second bottom plate is leaned on than interconnecting piece 99 is configured at the position of the interconnecting piece 99 of plate 83 on the front.First blow vent The inner space of peripheral wall portion 84 is connected to by 98a and the second blow vent 98b with exterior space.

Cowling panel 85 is arranged in the inner space of peripheral wall portion 84 and extends from the front end side of peripheral wall portion 84 towards rear end side Plate body.As shown in figure 4, in the present embodiment, cowling panel 85 extends along front and back and up and down, the upside of the cowling panel 85 Outer rim connect with the inner peripheral surface of the upper wall 84b of peripheral wall portion 84, the lower wall of the outer rim of the downside of the cowling panel 85 and peripheral wall portion 84 The inner peripheral surface of 84c connects.As shown in fig. 6, the back side 82b of the outer rim 85f of the front side of the cowling panel 85 and the first bottom plate 82 and The back side 83b connection of second bottom plate 83.The outer rim 85b of the rear side of cowling panel 85 is located at the position that front side is leaned on than opening 84H.This Outside, in Fig. 6, the outer rim 85f of the front side of the cowling panel 85 and outer rim 85b of rear side is represented by dashed line respectively.In this embodiment party In formula, radiator 80 has multiple cowling panels 85.From the forward observation of the opening direction as the first blow vent 98a the case where Under, multiple cowling panel 85 crosses the first blow vent 98a respectively, in the front from the opening direction as the second blow vent 98b In the case where observation, the second blow vent 98b is crossed respectively.In addition, several cowling panels 85 in multiple cowling panels 85 have from the Two blow vent 98b extend forwards and to the exterior space of peripheral wall portion 84 protruding portion 85a outstanding.

Next, being illustrated to fan 81.

As shown in fig. 6, fan 81 is configured at the position of ratio cowling panel 85 rearward in the inner space of peripheral wall portion 84, wind The periphery of fan 81 is surrounded by peripheral wall portion 84.Fan 81 is fixed on radiator 80 by screw 81a shown in Fig. 4.In this implementation In mode, fan 81 sends out air to the back side 82b of the first bottom plate 82 and the back side 83b of the second bottom plate 83.That is, the above-mentioned back side The flow direction of air between 82b, 83b and fan 81 is the direction from rear towards front.In addition, fan 81 is configured to It is enough that air supply direction is switched to opposite direction.That is, fan 81 can also will be empty and air supply direction is switched to opposite direction Gas is sent out to the opening side 84H, rather than is sent out to the back side side 83b of the back side 82b of the first bottom plate 82 and the second bottom plate 83.Again Have, as described above, the first blow vent 98a and the second blow vent 98b are located at than the first bottom plate 82 and the second bottom plate 83 The position of interconnecting piece 99 on the front.Therefore, the first blow vent 98a and the second blow vent 98b are at the back side with the first bottom plate 82 In the back side 83b of 82b and the second bottom plate 83 vertical section, it is configured at the interconnecting piece than the first bottom plate 82 and the second bottom plate 83 99 by the position of the opposite side of 81 side of fan.

Next, being illustrated to first substrate 50, the second substrate 60 and flexible printed circuit substrate 70.

Fig. 7 is the main view of first substrate, the second substrate and flexible printed circuit substrate.In Fig. 3, Fig. 4, with bending State show flexible printed circuit substrate 70, but in Fig. 7, flexible printed circuit substrate 70 is set as un-flexed state, Show first substrate 50 and state that the second substrate 60 is unfolded in the same plane.

First substrate 50 is plate body, such as is consisted of metal.It is formed on first substrate 50 and runs through along plate thickness direction Through hole 51.It is formed in the inner peripheral surface of the first substrate 50 of regulation through hole 51 there are two the first bearing surface 51s, this two the One bearing surface 51s is opposed and generally parallel to each other in the range of the face of the side from first substrate 50 to the face of another party Plane.That is, the first bearing surface 51s is a part of the inner peripheral surface of the first substrate 50 of regulation through hole 51.First abutting Face 51s is set as substantially vertical with the front surface of first substrate 50 and the back side.It is dissipated in addition, the through hole 51 is formed in above-mentioned The corresponding position of the first flank 87 in first bottom plate 82 of hot device 80, the distance between two first bearing surface 51s are set as Slightly larger than the outer diameter of the first flank 87.For example, the distance between two first bearing surface 51s can be set to than the first flank 87 Outer diameter big 0.05mm to 0.1mm or so.

In the case where overlooking first substrate 50, the side of the side on the direction parallel with the first bearing surface 51s is set For the second bearing surface 52s substantially vertical with the first bearing surface 51s.In addition, in the case where overlooking first substrate 50, with The outer rim of two side bearing surface 52s opposite side is formed with the positioning recess portion 53 that outer rim is recessed to the second side bearing surface 52s.It is advising The side of the first substrate 50 of fixed positioning recess portion 53 is formed with third bearing surface 53s, and the third bearing surface 53s is from first It is substantially vertical with the first bearing surface 51s in the range of the face to the face of another party of one side of substrate 50.The positioning formation of recess portion 53 The corresponding position of boss 88 in the first bottom plate 82 with above-mentioned radiator 80, and form that there are two positioning recess portions 53. The distance between second bearing surface 52s and third bearing surface 53s are set as supporting for the boss 88 being slightly less than in above-mentioned radiator 80 The distance between the bearing surface 97s of junction 88s and protrusion 97.For example, between the second bearing surface 52s and third bearing surface 53s Distance can be set to more left than the distance between the bearing surface 88s of boss 88 and the bearing surface 97s of protrusion 97 small 0.05mm to 0.1mm It is right.It is extended to and the second side bearing surface 52s phase in addition, being formed on first substrate 50 from the outer rim of the second side bearing surface 52s The notch 54 of the specified position of anti-side.In the present embodiment, notch 54 there are two being formed.

Equipped with the first light-emitting component 55 and thermistor 56 on the face of a side of first substrate 50.Overlook the first base In the case where plate 50, the first light-emitting component 55 is located at the second side bearing surface 52s, and thermistor 56 is located at and the second bearing surface 52s The position of side opposite side.In the present embodiment, the center of gravity 50G of first substrate 50 is located at the first light-emitting component 55 and temperature-sensitive electricity Between resistance 56.

First light-emitting component 55 projects the first light for becoming dipped beam.That is, the first light-emitting component 55 is dipped beam light-emitting component. In addition, the first light-emitting component 55 is configured to project the normal of the exit facet of the first light towards front obliquely downward.Further, along a left side Right direction is side by side equipped with multiple first light-emitting components 55.In the present embodiment, equipped with seven the first light-emitting components 55.

Fig. 8 is the figure at the position surrounded by dotted line VIII that amplification indicates in Fig. 7.Needing each first hair of additional symbols In the case where optical element 55, as shown in figure 8, when viewed from the front, from left to right in order by each first light-emitting component 55 Referred to as first light-emitting component 55a~55g.First light-emitting component 55a~55d is set to lower than first light-emitting component 55e~55g Position.That is, being configured at the multiple first luminous members of the side on left and right directions on the basis of specific first light-emitting component 55d The setting height of part 55a~55c and the multiple first light-emitting component 55e~55g for being configured at the other side are different.In this implementation In mode, specific first light-emitting component 55d is being configured at and is being set to when viewed from the front than specific first light-emitting component First light-emitting component 55a~55c identical height of the 55d by the position in left side.The height of above-mentioned first light-emitting component 55e~55g Degree is determined according to the shape of the "cut-off"line of the light distribution patterns of aftermentioned dipped beam.

In addition, specific first light-emitting component 55d and being configured to clamp a pair first of specific first light-emitting component 55d Equispaced between light-emitting component 55c, 55e is less than other first light-emitting components 55a, 55b, 55f, 55g adjacent to each other Equispaced.It shines that is, the equispaced of first light-emitting component 55c, 55d, 55e adjacent to each other is less than adjacent to each other first The equispaced of element 55a, 55b, 55c and the equispaced of first light-emitting component 55e, 55f, 55g adjacent to each other.Cause And the interval that center in left and right directions is nearby configured to first light-emitting component 55c, 55d, 55e adjacent to each other is less than on a left side Side in right direction is configured to the equispaced of first light-emitting component 55a, 55b, 55c adjacent to each other and matches in the other side It is set to the equispaced of first light-emitting component 55e, 55f, 55g adjacent to each other.

As such first light-emitting component 55, such as use LED.In the present embodiment, as described above, along right and left To side by side equipped with multiple first light-emitting components 55.Thus, the first light-emitting component 55 is set as the LED being made of multiple LED Array.The LED array is connected in series by power supply circuit 57 formed on first substrate 50.Thermistor 56 with first The thermosensitive resistor and circuit 58 formed on substrate 50 connects.In addition, the first light-emitting component 55, thermistor 56, power supply circuit 57 with And thermosensitive resistor and circuit 58 is exhausted with first substrate 50 and the insulating layer (not shown) being arranged on the surface of first substrate 50 Edge.

The second substrate 60 is plate body, such as is consisted of metal.It is formed in the second substrate 60 and runs through along plate thickness direction Through hole 61.It is formed in the inner peripheral surface of the second substrate 60 of regulation through hole 51 there are two the first bearing surface 61s, this two the One bearing surface 61s is opposed and generally parallel to each other in the range of the face of the side from the second substrate 60 to the face of another party Plane.That is, the first bearing surface 61s is a part of the inner peripheral surface of the second substrate 60 of regulation through hole 61.First abutting Face 61s is set as substantially vertical with the front surface of the second substrate 60 and the back side.It is dissipated in addition, the through hole 61 is formed in above-mentioned The corresponding position of the second flank 92 in second bottom plate 83 of hot device 80, the distance between two first bearing surface 61s are set as Slightly larger than the outer diameter of the second flank 92.For example, the distance between two first bearing surface 61s can be set to than the second flank 92 Outer diameter big 0.05mm to 0.1mm or so.

In the case where overlooking the second substrate 60, formed in the outer rim of the second substrate 60 oriented big with the first bearing surface 61s The positioning for causing vertical direction to be recessed recess portion 62.There are two being formed in the side of the second substrate 60 of regulation positioning recess portion 62 The range of second bearing surface 62s, this two the second bearing surface 62s in the face of the side from the second substrate 60 to the face of another another party It is interior opposed and substantially vertical with the first bearing surface 61s.The positioning recess portion 62 is formed in the second bottom plate with above-mentioned radiator 80 The corresponding position of protrusion 94 in 83, and in the formation of the second substrate 60, there are two positioning recess portions 62.Recess portion is used in each positioning The distance between two second bearing surface 62s in 62 be set as slightly larger than between two bearing surface 94s in protrusion 94 away from From.For example, the distance between two second bearing surface 62s can be set to than between two bearing surface 94s in protrusion 94 away from From big 0.05mm to 0.1mm or so.

Equipped with the second light-emitting component 63 and connector 64 on the face of a side of the second substrate 60.Overlook the second substrate In the case where 60, the second light-emitting component 63 is located at the side on the direction parallel with the first bearing surface 61s, and connector 64 is located at another Side.In the present embodiment, the center of gravity 60G of the second substrate 60 is between the second light-emitting component 63 and connector 64.

Second light-emitting component 63 and connector 64 are electrically connected by the power supply circuit 65 formed in the second substrate 60.Separately Outside, the second light-emitting component 63 is configured at the lower section of the first light-emitting component 55 and projects the second light.The second of present embodiment shines Element 63 projects the second light for becoming distance light.That is, the second light-emitting component 63 of present embodiment is distance light light-emitting component.Separately Outside, the second light-emitting component 63 is configured to project the normal of the exit facet of the second light towards front oblique upper.Further, along left and right Direction is side by side equipped with multiple second light-emitting components 63.In the present embodiment, equipped with 12 the second light-emitting components 63.Respectively A second light-emitting component 63 with roughly the same level configurations point-blank.In addition, in the present embodiment, being configured at the right side One second light-emitting component 63 at end is configured to compared with the interval of other the second light-emitting components 63 adjacent to each other, relative to it He significantly separates the second light-emitting component 63.

As such second light-emitting component 63, such as use LED.In the present embodiment, as described above, along right and left To side by side equipped with multiple second light-emitting components 63.Therefore, the second light-emitting component 63 is set as the LED being made of multiple LED Array.In the present embodiment, in the case where overlooking the second substrate 60, the second light-emitting component 63 is set as edge and abuts with first The LED array that face 61s vertical direction multiple LED arranged side by side are constituted.The LED array will be adjacent by power supply circuit 65 Two LED are connected in parallel, and light can be projected as unit of two LED being connected in parallel or not projected light.

In addition, be formed in the second substrate 60 the first power supply wiring 66a that respective one end connect with connector 64, Second power supply wiring 66b, the first thermistor wiring 67a and the second thermistor wiring 67b.In present embodiment In, in the case where overlooking the second substrate 60, the first thermistor is with wiring 67a substantially vertical with the first bearing surface 61s It is located at the position that side is leaned on than power supply circuit 65 on direction.In the case where overlooking the second substrate 60, the first power supply wiring 66a It is located at power supply circuit 65 and the first thermistor in the first bearing surface 61s generally perpendicular direction between wiring 67a.? Overlook the second substrate 60 in the case where, the second thermistor with wiring 67b in the first bearing surface 61s generally perpendicular direction Positioned at the position for leaning on the other side than power supply circuit 65.In the case where overlooking the second substrate 60, the second power supply with wiring 66b with It is located at power supply circuit 65 and the second thermistor in first bearing surface 61s generally perpendicular direction between wiring 67b.It is connecting Harness (not shown) is connected on device 64.The quantity of connector 64 is not particularly limited, in Fig. 7, illustrated two companies Connect device 64 with the mode carried side by side in the first bearing surface 61s generally perpendicular direction.In addition, the second light-emitting component 63, confession Circuit 65, the first power supply wiring 66a, the second power supply wiring 66b, the first thermistor heat of wiring 67a and second Quick resistance wiring 67b is distinguished and the insulating layer (not shown) being arranged on the surface of the second substrate 60 with the second substrate 60 Insulation.

In the present embodiment, two flexible printed circuit substrates 70 are configured to substantially bilateral symmetry.Hereinafter, to a side into Row explanation, and suitably omit the explanation for being directed to another party.Flexible printed circuit substrate 70 have flexibility, such as by insulating trip and The metal film being arranged on one face of the insulating trip is constituted.The flexible printed circuit substrate 70 of present embodiment has approximate rectangular The band portion 73 of shape, the first connecting portion 71 being connect with one end of the length direction of band portion 73 and with the length direction of band portion 73 The second connecting portion 72 of other end connection.Width on the direction vertical with length direction of band portion 73 is set as being less than the direction On first connecting portion 71 and second connecting portion 72 width.In the present embodiment, it is formed in band portion 73 and the band The substantially parallel slit 73s of the length direction in portion 73.Using slit 73s, with the not formed slit 73s the case where compared with, reduce The flexural rigidity of band portion 73.The rigidity being especially reduction of on the direction vertical with length direction of band portion 73.In addition, to The width of one interconnecting piece 71, second connecting portion 72 and band portion 73 is not particularly limited.For example, the width of band portion 73 can be set to Greater than the width of first connecting portion 71 and second connecting portion 72.In addition, the width of band portion 73 can be in the length of the band portion 73 Change on direction.In addition, band portion 73 can not also form slit 73s.

It is formed with the first power supply terminal 74a and the first thermistor terminal 75a in first connecting portion 71, second Interconnecting piece 72 is formed with the second power supply terminal 74b and the second thermistor terminal 75b.In addition, in flexible print circuit The power supply that substrate 70 is formed through band portion 73 and is electrically connected the first power supply terminal 74a and the second power supply terminal 74b is used Wiring 74c.Band portion 73 is passed through in the same manner as wiring 74c with power supply and by the first thermistor terminal 75a in addition, being also formed with The thermistor wiring 75c being electrically connected with the second thermistor terminal 75b.Power supply is with wiring 74c with the slit of band portion 73 The side on the direction vertical with length direction of the band portion 73 is passed through on the basis of 73s.On the other hand, thermistor wiring 75c passes through the other side on the direction vertical with length direction of the band portion 73 on the basis of the slit 73s of band portion 73.That is, Flexible printed circuit substrate 70 has two wirings 74c, 75c that second connecting portion 72 is extended to from first connecting portion 71, and Gap 73s is formed between two wirings 74c, 75c.

Such each flexible printed circuit substrate 70 connects first substrate 50 and the second substrate 60, and will be first The circuit formed on substrate 50 and the circuit formed in the second substrate 60 electrical connection.Specifically, by each flexible printing electricity The first connecting portion 71 of base board 70 is for example taken by what the first light-emitting component 55 of confession that solder is bonded on first substrate 50 carried On section.The second connecting portion 72 of each flexible printed circuit substrate 70 is for example bonded on the confession the of the second substrate 60 by solder In the mounting surface that two light emitting 63 carries.In this way, each flexible printed circuit substrate 70 and first substrate 50 and the second substrate 60 connections.The length direction of band portion 73 in each flexible printed circuit substrate 70 is set as generally parallel to each other.In this implementation In mode, in the state that first substrate 50 and the second substrate 60 are configured on same plane, the first of first substrate 50 is abutted Face 51s and the first bearing surface 61s of the second substrate 60 is set as substantially parallel.In addition, the first light-emitting component of first substrate 50 55 sides are located at the position of 63 side of the second light-emitting component of the second substrate 60.

In the case where overlooking first substrate 50, the first connecting portion 71 of each flexible printed circuit substrate 70 is with first It is located at roughly the same position on bearing surface 51s parallel direction each other.In the case where overlooking the second substrate 60, each flexibility The second connecting portion 72 of printed circuit board 70 is located at roughly the same position each other on the direction parallel with the first bearing surface 61s It sets.The center of gravity 50G of first substrate 50 and the first light-emitting component 55 are located at the first connection of above-mentioned flexible printed circuit substrate 70 Between portion 71.The first connecting portion 71 of each flexible printed circuit substrate 70 is located at the center of gravity 50G than first substrate 50 by first The position of the opposite side of 55 side of light-emitting component.The center of gravity 60G of the second substrate 60 and the second light-emitting component 63 are located at above-mentioned flexibility Between the second connecting portion 72 of printed circuit board 70.In addition, the center of gravity 50G of first substrate 50 and the first light-emitting component 55 divide It can not also be between first connecting portion 71.In addition, the center of gravity 60G of the second substrate 60 and the second light-emitting component 63 difference It can not also be between second connecting portion 72.In one opposite with 50 side of first substrate from the flexible printed circuit substrate 70 When side is observed, a part of the band portion 73 of each flexible printed circuit substrate 70 and the notch 54 of first substrate 50 are Chong Die.This is cut The width of mouth 54 is set as the width greater than band portion 73.In addition, under same visual angle, each flexible printed circuit substrate 70 Band portion 73 is until the specified position in the outer rim to notch 54 for the second substrate 60 that band portion 73 is crossed, not with first substrate 50 Overlapping.The outer rim for the second substrate 60 that the band portion 73 of the flexible printed circuit substrate 70 of present embodiment is crossed from band portion 73 to Until carrying out the outer rim with 60 side opposite side of the second substrate in defined outer rim to the notch 54 of first substrate 50, with first Substrate 50 is not overlapped.In addition, first light-emitting component 55 of first substrate 50 is configured at ratio in the case where overlooking first substrate 50 The position that 60 side of the second substrate is leaned on the edge of the second substrate side opposite side in notch 54.Moreover, first light-emitting component 55 on the direction vertical with the length direction of band portion 73, with band portion 73 like this position Chong Die with first substrate 50 weight It is folded.

In addition, the flexible printing of the end 57c and a side of the cathode side in the power supply circuit 57 formed on first substrate 50 First power supply terminal 74a connection of circuit substrate 70.The end 57a of anode-side in the power supply circuit 57 of first substrate 50 and another First power supply terminal 74a connection of the flexible printed circuit substrate 70 of one side.In addition, the temperature-sensitive formed on first substrate 50 First thermistor terminal of the flexible printed circuit substrate 70 of an one end 58c and side of the cathode side in resistance circuit 58 75a connection.One end 58a of the anode-side in thermosensitive resistor and circuit 58 formed on first substrate 50 and the flexible of another party print The terminal 75a connection of first thermistor of brush circuit substrate 70.

First power supply of the second substrate 60 wiring 66a and one end of connector 64 side opposite side and the flexibility of a side Second power supply terminal 74b connection of printed circuit board 70.Second power supply of the second substrate 60 with wiring 66b's and connector Second power supply terminal 74b connection of the flexible printed circuit substrate 70 of one end and another party of 64 side opposite side.In addition, the First thermistor of two substrates 60 is electric with one end of 64 side opposite side of connector and the flexible printing of a side with wiring 67a's The terminal 75b connection of second thermistor of base board 70.Second thermistor of the second substrate 60 wiring 67b and connection The second thermistor terminal 75b connection of the flexible printed circuit substrate 70 of one end and another party of 64 side opposite side of device.

By like this connecting two flexible printed circuit substrates 70 with first substrate 50 and the second substrate 60, by The connector 64 of two substrates 60 and the power supply circuit 65 of first substrate 50 are electrically connected.Moreover, being supplied power to via connector 64 To the first light-emitting component 55 of first substrate 50.In addition, the connector 64 of the second substrate 60 and the thermistor of first substrate 50 Circuit 58 is electrically connected, to 56 impressed current of thermistor of first substrate 50.

Next, being illustrated to first substrate 50 to the carrying of radiator 80.

Fig. 9 is the figure for indicating to carry first substrate situation on a heat sink.As shown in figure 9, first substrate 50 is with One bearing surface 51s and up and down direction is substantially parallel and 55 side of the first light-emitting component is located at the state of downside and is placed in radiator 80 In the first mounting surface 86 in first bottom plate 82.In the case where overlooking first substrate, the outer rim of the first mounting surface 86 is by first The outer rim of substrate 50 is surrounded.In the present embodiment, in the phase for the side that the first light-emitting component 55 of confession of first substrate 50 carries The lubricating grease as aftermentioned flow member is coated on the face tossed about, therefore, in the first light-emitting component of confession of first substrate 50 The lubricating grease has been sandwiched between the face and the first mounting surface 86 of the opposite side of 55 sides carried.First flank of the first bottom plate 82 87 are inserted in the through hole 51 of first substrate 50.As described above, the first flank 87 rolls upwards relative to the first mounting surface 86 Extend tiltedly and upward from below in the case where overlooking the first mounting surface 86, therefore the first flank 87 is with relative to running through The opening direction in hole 51 and to the state of incline upward be inserted into.In the forward observation from the extending direction as the first flank 87 In the case of, the center for being thus inserted into the first flank 87 in through hole 51 is located between two the first bearing surface 51s.Institute as above It states, the distance between this two first bearing surface 51s are set as the outer diameter slightly larger than the first flank 87.Therefore, in first substrate 50 relative to radiator 80 along the first mounting surface 86 in the case where being moved on the direction vertical with the first bearing surface 51s, The outer peripheral surface of one flank 87 is abutted with either in two the first bearing surface 51s.Herein, as described above, overlooking first In the case where mounting surface 86, the first flank 87 extends upward from below, and the first bearing surface 51s and up and down direction are substantially flat Row.Thus, it can be understood that the direction vertical with the extending direction of the first flank 87 in the case where the first mounting surface 86 of vertical view At least one party of the outer peripheral surface of the outer peripheral surface and other side of the side of first flank 87 i.e. on left and right directions supports with first Junction 51s is abutted.Therefore, the position by the first substrate 50 on the direction parallel with the first mounting surface 86 relative to radiator 80 In, be limited in the position overlooked on the vertical direction of the extending direction of the first flank 87 in the case where the first mounting surface 86 In the range of regulation.In addition, the direction vertical with the extending direction of the first flank 87 in the case where the first mounting surface 86 of vertical view On first flank 87 the outer peripheral surface of side and at least one party of outer peripheral surface of the other side can be abutted always with first Face 51s is abutted.For example, the first flank 87 can be pressed into through hole 51.

Two boss 88 of the first bottom plate 82 respectively enter in two positioning recess portions 53 of first substrate 50.Institute as above State, the bearing surface 88s of boss 88 be set as it is vertical with the first mounting surface 86 and in the case where overlooking the first mounting surface 86 along a left side The plane of right extension.In addition, being set to the third bearing surface 53s for the side that positioning carries out defined first substrate 50 with recess portion 53 For relative to substantially vertical with the first substantially parallel bearing surface 51s of up and down direction.Therefore, bearing surface 88s and third bearing surface 53s is opposed with substantially parallel state.

Second bearing surface 52s of first substrate 50 is located at the position more against the top than the protrusion 97 of radiator 80.As described above, The bearing surface 97s of protrusion 97 be set as it is substantially vertical with the first mounting surface 86 and in the case where overlooking the first mounting surface 86 along a left side The plane of right extension.In addition, the second bearing surface 52s of first substrate 50 is set as relative to substantially parallel with up and down direction One bearing surface 51s is substantially vertical.Therefore, bearing surface 97s and the second bearing surface 52s are opposed with substantially parallel state.Institute as above It states, the distance between the second bearing surface 52s in first substrate 50 and third bearing surface 53s are set as being slightly less than in radiator 80 Boss 88 bearing surface 88s and protrusion 97 the distance between bearing surface 97s.Therefore, in first substrate 50 relative to heat dissipation Device 80 along the first mounting surface 86 in the case where being moved on the direction parallel with the first bearing surface 51s, in first substrate 50 The second bearing surface 52s and bearing surface 97s of protrusion 97 is abutted.In addition, third bearing surface 53s and boss 88 in first substrate 50 Bearing surface 88s abut.Herein, as described above, bearing surface 88s is set as edge in the case where overlooking the first mounting surface 86 The plane that left and right extends, bearing surface 88s and third bearing surface 53s are opposed with substantially parallel state.Therefore, it is carried in vertical view first In the case where setting face 86, tangent line when bearing surface 88s and third bearing surface 53s are abutted substantially extends along left and right.Therefore, the tangent line It is substantially vertical and not parallel with the extending direction of the first flank 87.In addition, as described above, the case where overlooking the first mounting surface 86 Under, bearing surface 97s is set as the plane extended along left and right, and bearing surface 97s and the second bearing surface 52s are with substantially parallel state pair It sets.Therefore, the tangent line substantially edge in the case where overlooking the first mounting surface 86, when bearing surface 97s and the second bearing surface 52s are abutted Left and right extends.Therefore, the tangent line and the extending direction of the first flank 87 are substantially vertical and not parallel.Thus, it will be with the first mounting First substrate 50 on the parallel direction in face 86 relative to it is in the position of radiator 80, overlook the first mounting surface 86 in the case where The first flank 87 extending direction, that is, up and down direction on position limitation within the limits prescribed.In addition, in bearing surface 88s and The shape for at least one party in state that the state and bearing surface 97s and the second bearing surface 52s that third bearing surface 53s is abutted abut Under state, on the extending direction of the first flank 87 in the case where overlooking the first mounting surface 86, the first flank 87 and first substrate 50 do not contact.In addition, the second bearing surface 52s in first substrate 50 and the bearing surface 97s of protrusion 97 can also be abutted always, the The bearing surface 88s of third bearing surface 53s and boss 88 in one substrate 50 can also be abutted always.

Further more, as described above, the first bottom plate 82 forwards oblique upper extend, therefore the first mounting surface 86 also forwards tiltedly on Fang Yanshen, the also oblique upper extension forwards of first substrate 50 being positioned in first mounting surface 86.In addition, as shown in figure 9, In the case where the forward observation of the opening direction as the first blow vent 98a, a part of first substrate 50 and the first ventilation Mouth 98a overlapping.In addition, as described above, first substrate 50 is loaded with the first bearing surface 51s and up and down direction substantially parallel state In in the first mounting surface 86 of radiator 80.First light-emitting component 55 is set as in the side substantially vertical with the first bearing surface 51s The LED array that multiple LED arranged side by side are constituted upwards.Therefore, in left-right direction simultaneously as the LED array of the first light-emitting component 55 Column.

Next, being illustrated to the second substrate 60 to the carrying of radiator 80.

Figure 10 is the figure for indicating to carry first substrate and the second substrate situation on a heat sink.As shown in Figure 10, The second substrate 60 is carried with the first bearing surface 61s state that substantially parallel and 63 side of the second light-emitting component is located at upside with up and down direction It sets in the second mounting surface 91 of the second bottom plate 83 of radiator 80.In the case where overlooking the second substrate 60, the second mounting surface 91 outer rim is surrounded by the outer rim of the second substrate 60.In addition, in Figure 10,50 side of first substrate of the second substrate 60 and the first base The second substrate 60 of plate 50 stresses to fold, but the second substrate 60 and first substrate 50 are separation.That is, first substrate 50 and the second base Plate 60 separates defined compartment of terrain and is positioned on radiator 80.

In the present embodiment, the second substrate 60 confession the second light-emitting component 63 carry side opposite side face On, it is coated with the lubricating grease as aftermentioned flow member in the same manner as first substrate 50, therefore in the confession of the second substrate 60 the The lubricating grease has been sandwiched between the face and the second mounting surface 91 of the opposite side for the side that two light emitting 63 carries.Second bottom plate 83 The second flank 92 be inserted in the through hole 61 of the second substrate 60.As described above, the second flank 92 is relative to the second mounting surface 91 downwards roll tiltedly and in the case where overlooking the second mounting surface 91 from above towards lower section extension, therefore the second flank 92 with Relative to through hole 61 opening direction and the inclined state in side insertion downwards.From the extending direction as the second flank 92 In the case where forward observation, be thus inserted into the center of the second flank 92 of through hole 61 be located at two the first bearing surface 61s it Between.As described above, the distance between this two first bearing surface 61s are set as the outer diameter slightly larger than the second flank 92.Therefore, exist The feelings that the second substrate 60 moves on the direction vertical with the first bearing surface 61s relative to radiator 80 along the second mounting surface 91 Under condition, the outer peripheral surface of the second flank 92 is abutted with either in two the first bearing surface 61s.Herein, as described above, bowing In the case where the second mounting surface 91, the second flank 92 from above towards lower section extend, the first bearing surface 61s be set as with up and down Direction is substantially parallel.Hence, it will be appreciated that be, hang down with the extending direction for overlooking the second flank 92 in the case where the second mounting surface 91 At least one party of the outer peripheral surface of the outer peripheral surface and other side of the side of second flank 92 on straight direction, that is, left and right directions It is abutted with the first bearing surface 61s.Thus, by the second substrate 60 on the direction parallel with the second mounting surface 91 relative to radiator Position on direction in 80 position, vertical with the extending direction of the second flank 92 in the case where the second mounting surface 91 of vertical view Set limitation within the limits prescribed.In addition, with overlook the second mounting surface 91 in the case where the second flank 92 extending direction hang down At least one party of the outer peripheral surface of the outer peripheral surface and other side of the side of second flank 92 on straight direction can always with First bearing surface 61s is abutted.For example, the second flank 92 can be pressed into through hole 61.

Two protrusions 94 of the second bottom plate 83 respectively enter in two positioning recess portions 62 of the second substrate 60.Institute as above It states, the bearing surface 94s formed on the upside of protrusion 94 and the outer peripheral surface of downside is respectively set to big with the second mounting surface 91 Cause plane that is vertical and extending in the case where overlooking the second mounting surface 91 along left and right.In addition, being advised to positioning with recess portion 62 The second bearing surface of opposed two 62s of the side of fixed the second substrate 60 is set as relative to substantially parallel with up and down direction First bearing surface 61s is substantially vertical.Therefore, bearing surface 94s and the second bearing surface 62s are opposed with substantially parallel state.As above Described, the distance between two second bearing surface 62s in each positioning recess portion 62 are set as slightly larger than two in protrusion 94 The distance between a bearing surface 94s.Therefore, in the second substrate 60 relative to radiator 80 along the second mounting surface 91 with first On bearing surface 61s parallel direction in the case where movement, either opposed bearing surface 94s and the first bearing surface 61s are abutted. Herein, it as described above, bearing surface 94s is set as the plane extended in the case where overlooking the second mounting surface 91 along left and right, supports Junction 94s and the second bearing surface 62s are opposed with substantially parallel state.Therefore, it in the case where overlooking the second mounting surface 91, supports Tangent line when junction 94s and the second bearing surface 62s is abutted substantially extends along left and right.Therefore, the tangent line and the second flank 92 prolong It is substantially vertical and not parallel to stretch direction.Thus, by the second substrate 60 on the direction parallel with the second mounting surface 91 relative to scattered Position limitation on direction in the position of hot device 80, parallel with the first bearing surface 61s is within the limits prescribed.In addition, In the state that bearing surface 94s and the second bearing surface 62s are abutted, the second flank 92 in the case where overlooking the second mounting surface 91 On extending direction, the second flank 92 is not contacted with the second substrate 60.In addition, the second bearing surface 62s and protrusion of the second substrate 60 94 bearing surface 94s can be abutted always.For example, protrusion 94 can be pressed into positioning recess portion 62.

Further more, as described above, the second bottom plate 83 obliquely downward extends forwards, therefore the second mounting surface 91 is also forwards obliquely downward Fang Yanshen, also obliquely downward extends the second substrate 60 loaded in second mounting surface 91 forwards.In addition, as shown in Figure 10, From the forward observation of the opening direction as the second blow vent 98b, the second substrate 60 and the second blow vent 98b weight It is folded.In addition, as described above, the second substrate 60 is positioned in heat dissipation with the first bearing surface 61s and the substantially parallel state of up and down direction In second mounting surface 91 of device 80.Second light-emitting component 63 be set as in the first bearing surface 61s generally perpendicular direction simultaneously The LED array of column.Therefore, the LED array as the second light-emitting component 63 is arranged side by side in left-right direction.In addition, as described above, first 55 side of the first light-emitting component of substrate 50 is located at 63 side of the second light-emitting component of the second substrate 60, therefore the second light-emitting component 63 In the position for leaning on 50 side of first substrate than 60 side of the second substrate of the second substrate 60.In addition, the first light-emitting component 55 is located at the The position that 60 side of the second substrate is leaned on than 50 side of first substrate of one substrate 50.

In addition, when from the unilateral observation opposite with 80 side of radiator of flexible printed circuit substrate 70, two flexible prints The respective band portion 73 of brush circuit substrate 70 in the outer rim to notch 54 for the second substrate 60 crossed from band portion 73 as defined in It is not be overlapped with first substrate 50 until position.In addition, under same visual angle, the first light-emitting component 55 of first substrate 50 with On the vertical direction of the length direction of band portion 73, with the position Chong Die with first substrate 50 overlapping like this of band portion 73.Separately Outside, under same visual angle, the recess portion 89 of the side of radiator 80 crosses the length with the flexible printed circuit substrate 70 of side The edge of the two sides of the flexible printed circuit substrate 70 on the vertical direction in direction.In addition, the recess portion 89 of the other side cross with The two sides of the flexible printed circuit substrate 70 on the vertical direction of the length direction of the flexible printed circuit substrate 70 of the other side Edge.

Figure 11 is the figure for indicating to load the second substrate situation on a heat sink, and be from side the second substrate with And the partial enlarged view of radiator.As described above, several cowling panels 85 in multiple cowling panels 85 have from the second blow vent 98b Extend forwards and to the exterior space of peripheral wall portion 84 protruding portion 85a outstanding.As shown in figure 11, protruding portion 85a and second The face contact of the opposite side for the side that the second light-emitting component 63 of confession of substrate 60 carries.That is, the second substrate 60 is being placed in second While second mounting surface 91 of bottom plate 83, also it is placed on protruding portion 85a.

Next, the flexible print electricity in the state of being mounted on radiator 80 to first substrate 50 and the second substrate 60 The state of base board 70 is illustrated.

In the present embodiment, two flexible printed circuit substrates 70 are placed in first substrate 50 and the second substrate 60 Roughly the same state is set as in the state of radiator 80.Therefore, a side is illustrated below, by saying for another party Bright omission.Figure 12 is the schematic cross sectional view of the flexible printed circuit substrate in Figure 10, and is and flexible printed circuit substrate The parallel schematic cross sectional view of the length direction of 70 band portion 73.As described above, first connecting portion 71 is bonded on first substrate 50 On the mounting surface 50s carried for the first light-emitting component 55, the confession second that second connecting portion 72 is bonded on the second substrate 60 shines first On the mounting surface 60s that part 63 carries.Therefore, the opposite side of 86 side of the first mounting surface of first connecting portion 71 and first substrate 50 connects It connects, second connecting portion 72 is connect with the opposite side of 91 side of the second mounting surface of the second substrate 60.In addition, as shown in figure 12, it is flexible Ratio first connecting portion 71 of the band portion 73 of printed circuit board 70 between first substrate 50 and the second substrate 60 leans on first substrate 50 sides are positioned against 80 lateral bend of radiator into convex.In the present embodiment, the band portion 73 of flexible printed circuit substrate 70 Across the region for leaning on 86 side of the first mounting surface than first connecting portion 71, and across the notch 54 of first substrate 50.In addition, above-mentioned Recess portion 89 in radiator 80 is recessed into arc-shaped in vertical section, leans on flexible print circuit base towards than the first mounting surface 86 The opposite side of 70 side of plate is recessed.The band portion 73 of flexible printed circuit substrate 70 also extends through the recess portion 89.Flexible print curved in this way Brush circuit substrate 70 is not contacted with radiator 80.Further more, such as first substrate 50, the second substrate 60, radiator 80 Scale error etc., first substrate 50 and the second substrate 60 are sometimes in the direction, that is, right and left vertical with the length direction of band portion 73 It is upwardly deviated from and generates in band portion 73 stress of left and right directions.But as described above, by forming slit in band portion 73 73s, with the not formed slit 73s the case where compared with, be especially reduction of rigid on the direction vertical with length direction of band portion 73 Property.Thus, it is supposed that in the case where generating the stress of left and right directions in band portion 73, with the not formed slit 73s the case where compared with, It can reduce the stress acted in first connecting portion and the second connecting portion, be able to suppress and lead to the problem of.

Next, being illustrated to reflector element 40.

Figure 13 is the perspective view of light source unit, and Figure 14 is the main view of light source unit, and Figure 15 is that amplification indicates in Figure 14 By the figure at the position surrounded dotted line XV, Figure 16 is the schematic cross sectional view of light source unit.As shown in figs. 13 and 14, reflector element 40 reflector 41, the first side reflector 41a of the first light-emitting component 55, the first luminous member with the first light-emitting component 55 Second side reflector 41b of part 55, the reflector 42 of the second light-emitting component 63, the first side of the second light-emitting component 63 are anti- The second side reflector 42b that emitter 42a, the second light-emitting component 63 are used, light shielding part 43 are as primary structure.

Reflector element 40 is configured at than first substrate 50 by the position of the opposite side of 80 side of radiator.Reflector element 40 It is fixed on radiator 80 in a manner of being sandwiched first substrate 50 by the reflector element 40 and radiator 80.In this implementation In mode, reflector element 40 is fixed on radiator 80 using two screws 46.

As shown in figure 4, reflector element 40 also has flank 44.The flank 44 extends towards first substrate 50, flank 44 50 side of first substrate one end a part and first substrate 50 confession the first light-emitting component 55 carry mounting surface 50s connect Touching.Therefore, first substrate 50 is pressed in the first mounting surface 86 of radiator 80 by reflector element 40 to be fixed on heat dissipation On device 80.In the present embodiment, reflector element 40 has multiple flanks 44, in the case where overlooking first substrate 50, rib The position contacted with first substrate 50 in portion 44 is Chong Die with the first mounting surface 86.It therefore, can be by first substrate 50 more suitably Pressing is in the first mounting surface 86, so that first substrate 50 be inhibited to occur relative to the relative position of radiator 80 because of vibration etc. Variation.

Further more, in the present embodiment, as described above, the side of confession the first light-emitting component 55 carrying in first substrate 50 Opposite side face on be coated with lubricating grease as flow member, therefore as shown in figure 12, carried in first substrate 50 and first It sets and has sandwiched lubricating grease 24 between face 86.Therefore, by pressing first substrate 50 to the first mounting surface 86, the lubricating grease 24 a part is extruded between first substrate 50 and the first mounting surface 86 sometimes.As described above, 86 quilt of the first mounting surface It is set as the end face from the front surface 82f of the first bottom plate 82 pedestal 90 outstanding forwards, the outer rim of the first mounting surface 86 is by first The outer rim of substrate 50 is surrounded.Therefore, the extra lubricating grease 24 squeezed out between first substrate 50 and the first mounting surface 86 is squeezed Out on the front surface 82f of the first bottom plate 82 around pedestal 90.Thus, inhibit a part attachment of extra lubricating grease 24 On the mounting surface 50s that the first light-emitting component 55 of confession of first substrate 50 carries, extra lubricating grease 24 is inhibited to shine to first Attachment of element 55 etc..

As shown in Figure 14~Figure 16, light shielding part 43 prolongs forwards between the first light-emitting component 55 and the second light-emitting component 63 It stretches.In addition, light shielding part 43 has the first reflecting surface 43a of a part reflection for making the first light in upper surface, so that from first The a part for the first light that light-emitting component 55 projects passes through projecting lens 20.

First reflecting surface 43a is extended from 55 side of the first light-emitting component to front and in the vertical parallel with front-rear direction Concave reflecting surface downward in face.In addition, by by the front end of the front end of the first reflecting surface 43a, i.e. light shielding part 43 A part of 43c is set as convex upward, as shown in figure 15, thus with the step 43cs of up and down direction.In addition, In Figure 15, in order to be easy to watch, it is shown in bold the front end 43c of light shielding part 43.In the platform that the front end 43c of light shielding part 43 is formed Rank 43cs is formed as corresponding with the shape of the "cut-off"line of the light distribution patterns of aftermentioned dipped beam.The step 43cs of present embodiment It is formed near the center of the left and right directions of front end 43c.The front end 43c of light shielding part 43 is preferably formed on the basis of step 43cs And the side on left and right directions is lower than the other side.In the present embodiment, specifically, being leaned on than step 43cs in the 43c of front end A part of 43cL in left side is lower than a part of 43cH than step 43cs on the right side in the 43c of front end.Step 43cs is than step 43cs is by a part of 43cL in left side and than being formed as oblique line shape between a part of 43cH of step 43cs on the right side.

In addition, being configured to the front end of above-mentioned specific first light-emitting component 55d and light shielding part 43 when viewed from the front Step 43cs possessed by 43c is overlapped in the up-down direction.In addition, as described above, using specific first light-emitting component 55d as base Multiple first light-emitting component 55a~55c that are quasi- and configuring side in the lateral direction are set to than configuring in the more of the other side A first light-emitting component 55e~55g low position.Thus, when viewed from the front, it is being configured at the first of relatively low position A part of 43cL for being formed as relatively low front end 43c in the front end 43c of light-emitting component 55a~55c and light shielding part 43 exists It is overlapped in up and down direction.In addition, being configured at first light-emitting component 55e~55g of relatively high position when viewed from the front It is be overlapped in the up-down direction with a part of 43cH for being formed as relatively high front end 43c in the front end 43c of light shielding part 43.

In addition, though do not illustrate clearly, in order to formed dipped beam light distribution patterns "cut-off"line, before light shielding part 43 End 43c is gradually rearward recessed from left and right end portions towards center.

By the way that a part of the rear end 43d of the first reflecting surface 43a is set as convex upward, as shown in figure 15, Thus with the step 43ds of up and down direction.In addition, in order to be easy to watch, being shown in bold the first reflecting surface in Figure 15 The rear end 43d of 43a.Be formed as the light distribution figure with aftermentioned dipped beam in the step 43ds that the rear end 43d of the first reflecting surface 43a is formed The shape of the "cut-off"line of case is corresponding.The step 43ds of present embodiment be formed on left and right directions center near, from It is be overlapped in the up-down direction with step 43cs possessed by the front end 43c of light shielding part 43 when the observation of front.Before light shielding part 43 Hold step 43cs possessed by 43c similarly, when viewed from the front, the rear end 43d of the first reflecting surface 43a is formed as comparing step A part of 43dH of 43ds on the right side is higher than a part of 43dL in left side.In addition, when viewed from the front, above-mentioned specific first Light-emitting component 55d and step 43ds are be overlapped in the up-down direction.Step 43ds is in a part of 43dL for leaning on left side than step 43ds And than being formed as oblique line shape between the 43dH of step 43ds on the right side.In addition, the step 43ds of present embodiment is formed as It is longer than step 43cs.

As described above, being respectively formed platform by the rear end 43d of front end 43c and the first reflecting surface 43a in light shielding part 43 Rank, to be formed extended at both sides convex surface part 43as protruding upward along the longitudinal direction on the first reflecting surface 43a.In addition, due to this The step 43ds of embodiment is formed as longer than step 43cs, thus convex surface part 43as with from rear towards front and width becomes It is wide.Convex surface part 43as is set as shape corresponding with the light distribution patterns of dipped beam.

In addition, light shielding part 43 has the second reflecting surface 43b of a part reflection for making the second light in lower surface, so that from The a part for the second light that second light-emitting component 63 projects passes through projecting lens 20.Second reflecting surface 43b is from the second luminous member The concave reflecting surface that 63 side of part extends to front and reflects a part of the second light forwards.As shown in figure 15, second is anti- The rear end 43e for penetrating face 43b is formed as linear in left-right direction.In addition, in order to be easy to watch, being shown in bold in Figure 15 The rear end 43e of second reflecting surface 43b.Multiple second light-emitting components 63 are along being formed as the second linear reflecting surface 43b Rear end 43e and configure on straight line.

The configuration of reflector 41 has in 55 side of the first light-emitting component by the first luminous member in the top of the first light-emitting component 55 The third reflecting surface 41r of the top covering of part 55.First reflecting surface 43a of third reflecting surface 41r and light shielding part 43 is configuration For a pair of of the reflector for extending and clamping from upper and lower sides the first light-emitting component 55 in left-right direction.

As shown in figs. 13 and 14, the first side reflector 41a is formed in the first reflecting surface 43a and reflector of light shielding part 43 The first light-emitting component of ratio 55 in space folded by 41 third reflecting surface 41r, on left and right directions leans on the position of side.Separately Outside, the second side reflector 41b is formed in position in the space, that the other side is leaned on than the first light-emitting component 55.First lateral reflection Device 41a and the second side reflector 41b be formed as with from rear towards front and it is mutual interval become larger.

As shown in figure 16, the configuration of reflector 42 has in the lower section of the second light-emitting component 63 in 63 side of the second light-emitting component The 4th reflecting surface 42r that the lower section of second light-emitting component 63 is covered.The second reflection of 4th reflecting surface 42r and light shielding part 43 Face 43b is arranged to extend and clamp from upper and lower sides a pair of of reflector of the second light-emitting component 63 in left-right direction.

As shown in figs. 13 and 14, the first side reflector 42a is formed in the second reflecting surface 43b and reflector of light shielding part 43 The second light-emitting component of ratio 63 in space folded by 42 the 4th reflecting surface 42r, in left and right directions leans on the position of side.Separately Outside, the second side reflector 42b is formed in position in the space, that the other side is leaned on than the second light-emitting component 63.First lateral reflection Device 42a and the second side reflector 42b be formed as with from rear towards front and it is mutual interval become larger.

Next, being illustrated to support plate 30.

Figure 17 is perspective view when observing from the front support plate, Figure 18 be observe from the rear support plate when perspective view.Branch Board 30 has elasticity, and have as shown in Figure 17, Figure 18 base portion 31, a pair of of fixed part 32, the first light shielding part 33 of a pair, Second light shielding part 34, third light shielding part 35.In the present embodiment, base portion 31, a pair of of fixed part 32, a pair of first light shielding part 33, the second light shielding part 34 and third light shielding part 35 are integrally formed and carrying out bending machining to metal plate.Such as Figure 13, Figure 14 It is shown, such support plate 30 with by a part of the second substrate 60 from the side mounting surface 60s carried for the second light-emitting component 63 The mode of covering is fixed on radiator 80.

The configuration of base portion 31 is in the position for the opposite side for leaning on 80 side of radiator than the second substrate 60, in connector 64 and second Extend between light-emitting component 63 along the second substrate 60.Base portion 31 has protrusion 31a, and protrusion 31a is to 60 side of the second substrate The prominent and face contact with 91 side opposite side of the second mounting surface with the second substrate 60.That is, protrusion 31a and the second substrate 60 In confession the second light-emitting component 63 carry mounting surface 60s contact.In the present embodiment, there are two protrusions for the tool of base portion 31 31a.The figure of the second substrate in state representation 10 when Figure 19 is to overlook, and be the amplification near positioning recess portion 62 Figure.As shown in Fig. 7, Figure 10, Figure 19, the second substrate 60 confession the second light-emitting component 63 carry mounting surface 60s on this two The contact portion 31b of a protrusion 31a contact is located at the ratio positioning recess portion 62 of the second substrate 60 by 63 side of the second light-emitting component Opposite side position.In addition, the quantity of the protrusion 31a of support plate 30, position are not particularly limited.In other words, to second The quantity of the contact portion 31b contacted with protrusion 31a in substrate 60, position are not particularly limited.

As shown in Figure 17, Figure 18, on the left and right directions of a fixed part 32 in a pair of of fixed part 32 and base portion 31 The peripheral edge portion of side links.Another fixed part 32 and the peripheral edge portion of the other side on the left and right directions of base portion 31 connect Knot.As shown in Figure 17, Figure 18, be separately fixed in above-mentioned radiator 80 by screw 101 two of a pair of fixed part 32 are convex On platform 100.

A pair of fixed part 32 is configured to substantially bilateral symmetry, has inside wall portion 32a, external side wall 32b and antetheca Portion 32c.Inside wall portion 32a is in the opposite side direction side substantially orthogonal with base portion 31 than base portion 31 by 60 side of the second substrate Link to extension, and with base portion 31.Front wall portion 32c is located at than the position on the front inside wall portion 32a than inside wall portion 32a is by the position of the opposite side of 31 side of base portion.Front wall portion 32c and inside wall portion 32a is substantially orthogonal and substantially along vertical side Link to extension, and with inside wall portion 32a.External side wall 32b is than the position rearward front wall portion 32c and inside wall portion 32a It extends roughly in parallel, and links with front wall portion 32c.Front wall portion 32c substantially extends along vertical direction, and is formed with before this Perforative through hole on the plate thickness direction of wall portion 32c.As described above, obliquely downward extends the second substrate 60 forwards, therefore along Also obliquely downward extends the base portion 31 of the second substrate 60 forwards.Therefore, the front wall portion 32c of fixed part 32 and base portion 31 are uneven Row.Configuration dissipates in the space of inside wall portion 32a, external side wall 32b and front wall portion the 32c encirclement by such fixed part 32 The boss 100 of hot device 80, fixed part 32 are fixed on radiator 80 by screw 101.

Second light shielding part 34 and the peripheral edge portion of 64 side of connector of base portion 31 link.Second light shielding part 34 has upper wall Portion 34a and a pair of of connection wall portion 34b.Upper wall portions 34a is configured in the top of connector 64, is prolonged substantially in parallel with base portion 31 It stretches.In the peripheral edge portion of 64 side of connector of the connection wall portion 34b and base portion 31 of one side, on left and right directions side connects Knot, and extend to the opposite side of 60 side of the second substrate.The connection wall portion 34b of one side with 31 side opposite side of base portion Peripheral edge portion is connect with the peripheral edge portion of 63 side of the second light-emitting component of upper wall portions 34a.The connection wall portion 34b and pedestal of another party The connection of in the peripheral edge portion of 64 side of connector in portion 31, left and right directions the other side, and to the opposite of 60 side of the second substrate Side extends.The peripheral edge portion and the second of upper wall portions 34a with 31 side opposite side of base portion of the connection wall portion 34b of the another party The peripheral edge portion of 63 side of light-emitting component connects.Using such second light shielding part 34, by connector 64 and 60 side of the second substrate A part covering of opposite side.

In the peripheral edge portion of 63 side of the second light-emitting component of third light shielding part 35 and base portion 31, the first light-emitting component 55 The connection of first side side reflector 41a.Third light shielding part 35 has rear side wall portion 35a, return portion 35b, sidewall portion 35c, preceding Sidewall portion 35d is covered a part of the first light using front side wall portion 35d.Rear side wall portion 35a is configured at than base portion 31 by the It is in the position of the opposite side of two substrates, 60 side, lean on the first side reflector than the first light-emitting component 55 and the second light-emitting component 63 The position of the side 41a.Rear side wall portion 35a is vertically and left and right extends, and links with base portion 31.Return portion 35b is configured at Than the position of opposite side in the position of rear side wall portion 35a on the front, than the first side reflector 41a by 55 side of the first light-emitting component It sets.Return portion 35b is substantially extended parallel to rear side wall portion 35a, and the side opposite with the first side side reflector 41a is with after Sidewall portion 35a connection.Sidewall portion 35c be configured at than it is in the position on the front return portion 35b, lean on than the first side reflector 41a The position of the opposite side of first light-emitting component, 55 side.Sidewall portion 35c is in the side substantially parallel with the inside wall portion 32a of fixed part 32 It upwardly extends, and links with the first side side reflector 41a of return portion 35b.Front side wall portion 35d is configured at than the first lateral reflection It is in the position of device 41a on the front, than the first light-emitting component 55 and the second light-emitting component 63 by the first side side reflector 41a Position.Front side wall portion 35d is vertically and left and right extends, and links with sidewall portion 35c.Such front side wall portion 35d will be from A part masking for the first light that first light-emitting component projects.

Next, the second substrate 60 is described in detail to the fixation of radiator 80.

Figure 20 is to indicate by the figure of the fixed situation on a heat sink of the second substrate, and is the base portion across support plate 30 The cross-sectional view of the light source unit LU of 31 protrusion 31a.In addition, in fig. 20 it is shown that near the 31a of protrusion.As described above, logical It crosses and is separately fixed at a pair of of fixed part 32 on two boss 100 of radiator 80 using screw 101, thus consolidate support plate 30 It is scheduled on radiator 80.Specifically, the front wall portion 32c of fixed part 32 is formed as, in the protrusion 31a and the second base of base portion 31 In the state of the contact of plate 60 and the through hole of front wall portion 32c and the aligned in position of negative thread 100a, the end face of boss 100 is with before Wall portion 32c is substantially parallel and is slightly separated.By screw 101 is inserted through in the through hole of front wall portion 32c and with negative spiral shell Line 100a is screwed togather, and support plate 30 is fixed on radiator 80.At this point, by screw 101 by support plate 30 to 80 side of radiator Indentation, so that the gap turn narrow of the end face of boss 100 and front wall portion 32c.Herein, substantially parallel with the end face of boss 100 Front wall portion 32c substantially along vertical direction extend, therefore by screw 101 by support plate 30 towards rear be pressed into.As described above, The protrusion 31a of base portion 31 is contacted with the mounting surface 60s that the second light-emitting component 63 of confession of the second substrate 60 carries.Therefore, it supports 30 flexible deformation of plate, the resilient force of the support plate 30 is in the contact portion 31b of the second substrate 60.Support plate 30 is towards rear quilt Indentation, thus act on as shown in Figure 20 contact portion 31b support plate 30 elastic force F towards rear.Utilize the bearing The second substrate 60 is fixed on radiator 80 by the elastic force F of plate 30.Herein, as described above, being placed in the second mounting surface 91 The second substrate 60 obliquely downward extends forwards, therefore the confession second of the direction that is pressed into of support plate 30 and the second substrate 60 shines The mounting surface 60s that element 63 carries out of plumb and not parallel each other.Therefore, the direction of the elastic force F of support plate 30 and the second base The mounting surface 60s out of plumb of plate 60 and not parallel.Therefore, the elastic force F of support plate 30 is by towards relative to the second mounting surface 91 The power F1 in vertical direction and along the second mounting surface 91 power F2 constitute.In addition, being positioned in second in the second mounting surface 91 Obliquely downward extends substrate 60 forwards, therefore the power F2 along the second mounting surface 91 in the elastic force F of support plate 30 is towards upper Side.

Utilize the power F1 in the direction direction vertical relative to the second mounting surface 91 in the elastic force F of such support plate 30 By the pressing of the second substrate 60 in the second mounting surface 91.In addition, using in the elastic force F of support plate 30 along the second mounting surface 91 power F2 pushes the second substrate 60 to top along the second mounting surface 91, and a part of the side of the second substrate 60 is by radiator The outer peripheral surface of 80 protrusion 94 presses.More specifically, as shown in figure 19, the downside of recess portion 62 is used in the positioning of the second substrate 60 Second bearing surface 62s is pressed against on the bearing surface 94s of the downside of the protrusion 94 of radiator 80.That is, the elastic force F of support plate 30 In the power F2 along the second mounting surface 91 be that the second substrate 60 is pressed into power picture on the bearing surface 94s of the downside of protrusion 94 In this way by the pressing of the second substrate 60 on the bearing surface 94s of the downside of protrusion 94, so that the second substrate 60 be inhibited to carry along second Set opposite side offset of the face 91 to the pressing direction for bearing surface 94s.

In the present embodiment, as described above, the contact portion 31b of two contacts is located at the positioning than the second substrate 60 With recess portion 62 by the position of the opposite side of 63 side of the second light-emitting component, protrusion 94 enters in positioning in recess portion 62.That is, overlooking In the case where the second substrate 60, the bearing surface 94s of the downside of protrusion 94 is located at leans on support plate 30 by the second substrate than contact portion 31b Position of 60 pressings on the direction of the power F2 on the bearing surface 94s of the downside of protrusion 94.In addition, in the present embodiment, such as Shown in Fig. 7, in the case where overlooking the second substrate, two contact portion 31b are supporting the pressing of the second substrate 60 with support plate 30 The direction of power F2 on junction 94s overlaps each other on vertical direction.In addition, the contact portion 31b of a side and the protrusion 94 of a side Corresponding, the contact portion 31b of another party and the protrusion 94 of another party are corresponding.More specifically, as shown in figure 19, the second base is overlooked In the case where plate 60, at least part of the bearing surface 94s of the downside of the protrusion 94 of a side is between straight line La and straight line Lb. Straight line La is that the second substrate 60 is pressed the power F2 on bearing surface 94s with support plate 30 in the case where overlooking the second substrate 60 Direction it is parallel and pass through the straight line of one end of the contact portion 31b of a side on the direction vertical with the direction.Straight line Lb be with Straight line La is parallel and passes through the straight line of the other end of the contact portion 31b of a side.In addition, as shown in fig. 7, overlooking the second substrate 60 In the case where, at least part of the bearing surface 94s of the downside of the protrusion 94 of another party is between straight line Lc and straight line Ld.? It here, is the bullet for utilizing support plate 30 with the positional relationship between two protrusions 94 and the second substrate 60 shown in dotted line in Fig. 7 Property power and the positional relationship in the state that the second substrate 60 is fixed on radiator 80.Straight line Lc is to overlook the second substrate 60 In the case where with support plate 30 the second substrate 60 to be pressed the direction of power F2 on bearing surface 94s parallel and pass through and the party The straight line of one end of the contact portion 31b of another party on vertical direction.Straight line Ld is parallel with straight line Lc and passes through another The straight line of the other end of the contact portion 31b of side.

Further more, the straight line La for passing through the contact portion 31b of a side is located at the position with the side the contact portion 31b opposite side of another party It sets.Straight line Lc in the contact portion 31b of another party is located at the position with the side the contact portion 31b opposite side of a side.Overlook the In the case where two substrates 60, above-mentioned straight line La and straight line Lc and support plate 30 press the second substrate 60 on bearing surface 94s The direction of power F2 is parallel.Therefore, straight line La still in the case where overlooking the second substrate 60 with support plate 30 by the second substrate 60 It presses parallel in the direction of the power F2 on bearing surface 94s and passes through the contact portion with another party in the contact portion 31b of a side The straight line of the end of the side 31b opposite side.In addition, straight line Lc is still parallel with straight line La and passes through the contact portion 31b of another party In the straight line with the end of the side the contact portion 31b opposite side of a side.The bearing surface 94s of the downside of the protrusion 94 of one side is extremely At least part of the bearing surface 94s of the downside of few a part and the protrusion 94 of another party be located at straight line La and straight line Lc it Between.

In addition, the straight line Lb for passing through the contact portion 31b of a side is located at the side contact portion 31b of another party, the contact of another party Straight line Ld in portion 31b is located at the side contact portion 31b of a side.In the case where overlooking the second substrate 60, above-mentioned straight line Lb and straight Line Ld is parallel by the direction of power F2 of the pressing of the second substrate 60 on bearing surface 94s with support plate 30.Therefore, straight line Lb still exists The direction that the second substrate 60 presses the power F2 on bearing surface 94s is put down with support plate 30 in the case where overlooking the second substrate 60 The straight line of the end of the side contact portion 31b of row and another party in the contact portion 31b of a side.In addition, straight line Ld still with The straight line of the end of the side contact portion 31b of a side in straight line Lb parallel and across another party contact portion 31b.The second substrate 60 center of gravity 60G is located between straight line Lb and straight line Ld.Therefore, the center of gravity 60G of the second substrate 60 is also located at straight line La and straight Between line Lc.

In addition, in the present embodiment, as described above, the side of confession the second light-emitting component 63 carrying in the second substrate 60 Opposite side face on be coated with lubricating grease 24 as flow member, therefore such as Figure 16, as shown in Figure 20 in the second substrate 60 and second have sandwiched lubricating grease 24 between mounting surface 91.Therefore, by the second substrate 60 to the second mounting surface 91 carry out by Pressure, sometimes squeezes out a part of the lubricating grease 24 between the second substrate 60 and the second mounting surface 91.As described above, second Mounting surface 91 is set as the end face from the front surface 83f of the second bottom plate 83 pedestal 95 outstanding forwards, the second mounting surface 91 Outer rim is surrounded by the outer rim of the second substrate 60.Therefore, the extra profit squeezed out between the second substrate 60 and the second mounting surface 91 Consistent lubricant 24 is extruded on the front surface 83f of the second bottom plate 83 around pedestal 95.Thus, inhibit extra lubricating grease 24 On the mounting surface 60s that the second light-emitting component 63 of confession that a part is attached to the second substrate 60 carries, inhibit extra lubricating grease 24 Attachment etc. to the second light-emitting component 63.In addition, flow member is not limited to lubricating grease.As long as flow member is at least by first There is mobility when being positioned in the second mounting surface 91 when substrate 50 is positioned in the first mounting surface 86 and by the second substrate 60 Component, be not limited to always with mobility component.Therefore, flow member includes lubrication shown in present embodiment Rouge, adhesive etc. be not uncured solid even if after first substrate 50, the second substrate 60 are positioned in mounting surface 86,91 It change type flow member and can be carried by first substrate 50, the second substrate 60 by adhesive of the formation such as thermosetting resin etc. Cured curing type flow member after setting in mounting surface.In addition, being sandwiched between first substrate 50 and the first mounting surface 86 Flow member and the flow member that is sandwiched between the second substrate 60 and the second mounting surface 91 can be set to same component, Also it can be set to different components.

In addition, as described above, the outer peripheral surface of the downside of the pedestal 90 in radiator 80 and more upper than pedestal 95 Flow member recess portion 96 is formed between the front surface 83f of two bottom plates 83.The second mounting in the outer rim of first mounting surface 86 The outer rim 86e of 91 side of face and the outer rim 91e positioned at 86 side of the first mounting surface in the outer rim of the second mounting surface 91 are substantially parallel, and And extend in left-right direction.The outer rim of first mounting surface 86 is surrounded by the outer rim of first substrate 50, the outer rim of the second mounting surface 91 It is surrounded by the outer rim of the second substrate 60.Therefore, the outer rim 86e of 91 side of the second mounting surface in the outer rim of the first mounting surface 86 is The edge of 60 side of the second substrate in the region Chong Die with first substrate 50 in one mounting surface 86.In the outer rim of second mounting surface 91 The outer rim 91e positioned at 86 side of the first mounting surface be the region Chong Die with the second substrate 60 in the second mounting surface 91 the first base The edge of 50 side of plate.That is, flow member recess portion 96 is formed in the region Chong Die with first substrate 50 in the first mounting surface 86 60 side of the second substrate edge and 50 side of first substrate in the region Chong Die with the second substrate 60 in the second mounting surface 91 Between edge.Therefore, in the extra lubricating grease 24 squeezed out between first substrate 50 and the first mounting surface 86, direction second A part of the lubricating grease 24 of 60 side of substrate can be housed in flow member recess portion 96.In addition, from the second substrate 60 and A part of lubricating grease 24 in the extra lubricating grease 24 squeezed out between two mounting surfaces 91, towards 50 side of first substrate can It is housed in flow member recess portion 96.That is, the extra lubricating grease 24 accumulated between first substrate 50 and the second substrate 60 A part can be housed in flow member recess portion 96.

In addition, as described above, in the outer rim of the first mounting surface 86 be located at as 91 side of the second mounting surface lower end outside Edge 86e and the outer rim 91e for being located at the upper end as 86 side of the first mounting surface in the outer rim of the second mounting surface 91 are substantially parallel, and And extend in left-right direction.Therefore, region folded by outer rim 86e and outer rim 91e become in the first mounting surface 86 with first Edge and the region Chong Die with the second substrate 60 in the second mounting surface 91 of 60 side of the second substrate in the region that substrate 50 is overlapped The distance between the edge of 50 side of first substrate be the smallest region.At least part of flow member recess portion 96 is located at should In region.

In addition, as shown in figure 9, at least part of flow member recess portion 96 is located at first straight line Lf and second straight line Ls Between, wherein first straight line Lf pass through in the first light-emitting component 55 of first substrate 50 with from 50 side of first substrate towards the One end on the vertical direction in the direction of two substrates, 60 side and with it is flat from 50 side of first substrate towards the direction of 60 side of the second substrate Row, second straight line Ls pass through the other end and parallel with first straight line Lf.That is, flow member is located at at least part of recess portion 96 One end on the left and right directions of the first light-emitting component 55 and the first straight line Lf parallel with up and down direction and pass through the other end And between the second straight line Ls parallel with first straight line Lf.In addition, though the explanation that the illustration is omitted, but the flow member is with recessed At least part in portion 96 be located across in the second light-emitting component 63 of the second substrate 60 with from 50 side of first substrate towards the One end on the vertical direction in the direction of two substrates, 60 side and with it is flat from 50 side of first substrate towards the direction of 60 side of the second substrate Capable straight line and across the other end and other straight lines of the straight line parallel.That is, at least the one of flow member recess portion 96 Part is located across one end on the left and right directions of the second light-emitting component 63 and the straight line parallel with up and down direction and passes through another It holds and between other straight lines of the straight line parallel.

Next, being illustrated to projecting lens 20.

Projecting lens 20 shown in FIG. 1 to FIG. 4 is plano-convex lens, is configured in the front of light source unit LU.From light source unit The first light and the second light that LU is projected are injected from the flat plane of incidence of the back side of projecting lens 20 and penetrate projecting lens 20.Projecting lens 20 has flange part 21 in periphery.As the material of formation projecting lens 20, such as resin, glass can be enumerated as Glass.

Next, being illustrated to lens carrier 25.

Lens carrier 25 shown in FIG. 1 to FIG. 4 is configured between radiator 80 and projecting lens 20.Projecting lens 20 is fixed On lens carrier 25.By the way that lens carrier 25 is fixed on radiator 80, thus by projecting lens 20, lens carrier 25 with And the relative position of radiator 80 is fixed.In addition, as described above, by reflector element 40, support plate 30, first substrate 50 and The second substrate 60 is fixed on radiator 80.Therefore, reflector element 40, support plate 30, first substrate 50 and the second substrate 60 are also fixed with the relative position of projecting lens 20 and lens carrier 25.

Lens carrier 25 has cylindric maintaining part 26 and leg 27.Lens carrier 25 is for example formed by resin, and is kept Portion 26 and leg 27 are integrally formed.Maintaining part 26 extends from 20 side sink of projecting lens, 80 side.The flange of projecting lens 20 The end of 20 side of projecting lens of maintaining part 26 is fixed in portion 21.Leg 27 is from the end of 80 side of radiator of maintaining part 26 to dissipating Hot 80 side of device extends.In the present embodiment, there are three legs 27 for the tool of lens carrier 25.Two legs 27 are configured to along right and left To arranged side by side, another leg 27 is configured to the position more against the top than two legs 27 arranged side by side.Radiator three legs 27 Each end of 80 sides is formed with flange part 28, which is separately fixed on radiator 80 by screw 29.

It is fixed on clamping support plate 30 in two legs 27 in three legs 27 on radiator 80, arranged side by side like this A pair of first light shielding part 33.In addition, as described above, a pair of first light shielding part 33 is attached at the base portion 31 with support plate 30 respectively Left and right directions on the fixed part 32 that links respectively of end on, therefore a pair of first light shielding part 33 is configured in left-right direction simultaneously Column.Therefore, the first light shielding part 33 of a side be located at the side in two legs 27 arranged side by side leg 27 and projecting lens 20 it Between, the first light shielding part 33 of another party is located between the leg 27 and projecting lens 20 of another party.By having such first At least part of light shielding part 33, the sunlight injected through projecting lens 20 will not be irradiated to the leg 27 of lens carrier 25 But expose to the first light shielding part 33.Therefore, inhibit the damage of the lens carrier 25 as caused by sunlight.

In addition, as described above, the upper wall portions 34a in the second light shielding part 34 of support plate 30 is configured at the upper of connector 64 Side, and extended roughly in parallel with base portion 31.Therefore, the upper wall portions 34a of the second light shielding part 34 is located at connector 64 and throws Between shadow lens 20.By having such second light shielding part 34, at least the one of the sunlight of injection through projecting lens 20 Part will not be irradiated to connector 64 but expose on the upper wall portions 34a of the second light shielding part 34.Therefore, inhibit by sun light guide The damage of the connector 64 of cause.In addition, it is difficult to via projecting lens 20 and visuognosis goes out connector 64, lamp unit can be made Design become good.

Next, being illustrated to the injection of the light of the headlight for automobile 1 from present embodiment.

Figure 21 is the schematic cross sectional view of lamp unit, and be summary show from the first light-emitting component and second shine The figure of the optical path example for the light that element projects.In addition, the record of radiator 80, fan 81 etc. is omitted in Figure 21.In addition, depositing In the situation of the inaccuracy such as the angle of each reflecting surface, the angle of reflection of light, refraction angle.In addition, as described above, headlight for automobile quilt It is set as the bilateral symmetry in vehicle.In the explanation of light distribution below, to the same place of headlight for automobile in left and right settings Light distribution in the case where bright or extinguishing is illustrated.

As shown in figure 21, a part of the first smooth L1 projected from the first light-emitting component 55 is emitted directly toward to projecting lens Another part of 20, the first smooth L1 by the first reflecting surface 43a of light shielding part 43, reflector 41 third reflecting surface 41r in appoint One reflective surface and be incident upon projecting lens 20.By forming the front end 43c of light shielding part 43 as described above, it is incident upon projection The first smooth L1 near front end 43c in the smooth L1 of the first of lens 20, across light shielding part 43 forms the light and shade of the light distribution of dipped beam Dead line.In addition, though the explanation that the illustration is omitted, but from it is in the first smooth L1 that the first light-emitting component 55 projects, on a left side The a part for the light that right diffuses up is reflected by the first side reflector 41a, the second side reflector 41b and is incident upon projecting lens 20.In addition, a part for exposing to the front end 43c light rearward than light shielding part 43 in the first smooth L1 is hidden by light shielding part 43 It covers.In addition, a part of the light of the front side wall portion 35d of the third light shielding part 35 for exposing to support plate 30 in the first smooth L1 is preceding Sidewall portion 35d masking.Using projecting and inject through projecting lens 20 and then via front cover from the first light-emitting component 55 like this 12 the first smooth L1 projected form the light distribution of dipped beam shown in (A) in Figure 22.In addition, S is indicated in (A) in Figure 22 Horizontal line.

In addition, a part of the second smooth L2 projected from the second light-emitting component 63 is emitted directly toward to projecting lens 20, second Another part of light L2 by the second reflecting surface 43b of light shielding part 43, reflector 42 the 4th reflecting surface 42r in any reflecting surface It reflects and is incident upon projecting lens 20.In addition, though the explanation that the illustration is omitted, but the projected from the second light-emitting component 63 A part of light in two smooth L2, spreading in the lateral direction is reflected by the first side reflector 42a, the second side reflector 42b And it is incident upon projecting lens 20.In addition, the front side wall portion 35d of the third light shielding part 35 for exposing to support plate 30 in the second smooth L2 A part of light covered by front side wall portion 35d.It projects and injects through projecting lens 20 from the second light-emitting component 63 like this And then light distribution is formed by conjunction with the light distribution of above-mentioned dipped beam via the second smooth L2 that front cover 12 projects and forms (B) in Figure 22 Shown in distance light light distribution.In addition, S indicates horizontal line in (B) in Figure 22.

As described above, the headlight for automobile 1 of present embodiment has the first light-emitting component 55, second and shines Element 63, light shielding part 43 and projecting lens 20.Light shielding part 43 has the first reflecting surface 43a in upper surface, and in lower surface With the second reflecting surface 43b, the front end 43c of light shielding part 43 has corresponding with the shape of the "cut-off"line of the light distribution patterns of dipped beam Up and down direction step 43cs.In the headlight for automobile 1 of present embodiment, a part of the first light and the second light A part is directed through projecting lens 20.That is, a part of a part of the first light and the second light respectively will not by reflection and It is to be incident upon projecting lens 20 and penetrate projecting lens 20.In this way, due to one of a part of the first light and the second light Divide and be emitted directly toward to projecting lens 20, therefore headlight for automobile 1 does not need as recording in above patent document 1 Large-scale reflector.In addition, another part of the first light is configured in the light shielding part 43 of the lower section of the first light-emitting component 55 First reflecting surface 43a reflects and is incident upon projecting lens 20, and another part of the second light is configured in the second light-emitting component 63 Second reflecting surface 43b of the light shielding part 43 of top reflects and is incident upon projecting lens 20.Therefore, the first light can be effectively utilized And second light.Further, in headlight for automobile 1, the light distribution patterns of dipped beam are formed using the front end 43c of light shielding part 43 "cut-off"line.As described above, in headlight for automobile 1, even if can also make the first light without using large-scale reflector And second light be expeditiously incident upon projecting lens 20, to form the "cut-off"line of the light distribution of dipped beam.Therefore, can press down The enlargement of headlight for automobile 1 processed.

In addition, having the multiple first luminous members side by side in left-right direction in the headlight for automobile 1 of present embodiment Part 55 configures multiple first light-emitting components of side in the lateral direction on the basis of specific first light-emitting component 55d 55a~55c and configuration are different in the height of the setting of multiple first light-emitting component 55e~55g of the other side.To vertical In the case that dipped beam is irradiated in face, the "cut-off"line of the light distribution patterns of dipped beam is on the basis of specific position and highly in right and left Upward side and the other side is different.Therefore, the front end 43c of the light shielding part 43 of "cut-off"line is formed preferably with specific Position on the basis of and height side in the lateral direction and the other side are different.Herein, first by the way that multiple first shine Part 55 is configured to height difference as described above, is easy to make position and the light shielding part 43 of the exit facet of each first light-emitting component 55 The height of front end 43c match.Therefore, it is accessible to form dipped beam from the first light that each first light-emitting component 55 projects Near the front end 43c of the light shielding part 43 of the "cut-off"line of light distribution patterns, it can be improved light and shade in the light distribution patterns of dipped beam and cut The only luminosity near line.

In addition, in the headlight for automobile 1 of present embodiment, specific first light-emitting component 55d and it is configured to clamp Equispaced between the first light-emitting component of a pair 55c, 55e of specific first light-emitting component 55d is less than adjacent to each other its The equispaced of his multiple first light-emitting component 55a, 55b, 55f, 55g.By adjusting multiple first light-emitting components 55 like this Equispaced, immediate vicinity in the lateral direction can be made to be configured to first light-emitting component 55c~55e's adjacent to each other Two end sides that equispaced is less than in the lateral direction are configured to first light-emitting component 55a~55c and first adjacent to each other The equispaced of light-emitting component 55e~55g.

Therefore, compared with the case where the first light-emitting component of identical quantity equally spaced configures, in the light distribution figure for making dipped beam While case extends to the left and right, the immediate vicinity of the light distribution patterns of dipped beam is made to become bright.

In addition, the first reflecting surface 43a of the upper surface of light shielding part 43 has in the headlight for automobile 1 of present embodiment There is convex surface part 43as corresponding with the light distribution patterns of dipped beam.In the case where irradiating dipped beam to road surface, the light distribution patterns of dipped beam The side and the other side be formed as in the lateral direction keeps the range of exposures of light different.That is, dipped beam in opposite lane side and Its opposite side keeps the range of exposures of light different.By as described above in the first reflecting surface of the upper surface of light shielding part 43 Convex surface part 43as is arranged in 43a, is capable of forming range of exposures the matching in the different desired dipped beam in left and right of light as described above Light pattern.

In addition, in the headlight for automobile 1 of present embodiment, when viewed from the front, specific first light-emitting component Step 43cs possessed by the front end 43c of 55d and light shielding part 43 is overlapped in the up-down direction.In addition, shining with specific first On the basis of element 55d, the first light-emitting component 55a~55c for configuring side in the lateral direction is set to than configuring another First light-emitting component 55e~55g of side low position.Further, the front end 43c of light shielding part 43 be formed as be with step 43cs Benchmark and the side on left and right directions is lower than the other side.By configuring multiple first light-emitting components 55 like this and forming shading The front end 43c in portion 43, can be along multiple first light-emitting components 55 of shape configuration of the front end 43c of light shielding part 43.Therefore, make from The first light that each first light-emitting component 55 projects is easier to reach the shading of the "cut-off"line for the light distribution patterns for forming dipped beam Near the front end 43c in portion 43, the luminosity near "cut-off"line can be further increased in the light distribution patterns of dipped beam.

In addition, in the headlight for automobile 1 of present embodiment, in the first reflecting surface that the upper surface of light shielding part 43 is formed The rear end 43d of 43a has step corresponding with the shape of the "cut-off"line of the light distribution patterns of dipped beam.The front end of light shielding part 43 The rear end 43d of first reflecting surface 43a of the upper surface of 43c and light shielding part 43 is respectively provided with to be ended with the light and shade of the light distribution of dipped beam The corresponding step of the shape of line is easier the first light near the front end 43c for reaching light shielding part.Therefore, matching in dipped beam In light pattern, the luminosity near "cut-off"line can be further increased.

In addition, in the headlight for automobile 1 of present embodiment, when viewed from the front, the front end 43c institute of light shielding part 43 Step 43ds possessed by the rear end 43d of the step 43cs and the first reflecting surface 43a that have is overlapped in the up-down direction.Pass through picture Light shielding part 43 is formed in this way, and the first light is easier near the front end 43c for reaching light shielding part 43.Therefore, in the light distribution patterns of dipped beam In, the luminosity near "cut-off"line can be further increased.

More than, the present invention is described by taking embodiment as an example, however, the present invention is not limited thereto.

For example, the quantity of the first light-emitting component 55 is not particularly limited.

In addition, in the above-described embodiment, enumerates and illustrate to be divided into the height of two-stage to configure multiple first light-emitting components 55 example.Illustrate for first light-emitting component 55a~55d to be configured at identical height and by the first light-emitting component that is, enumerating 55e~55g is configured at mutually level example.But multiple first light-emitting components 55 are segmented into the height of more stages to match It sets, a column can also be set as with identical height.Wherein, multiple first light-emitting components 55 are preferably configured to along light shielding part 43 The shape of front end 43c.In addition, specific first light-emitting component preferred disposition in pass through be configured at than specific first shine member The straight line overlapping of multiple first light-emitting components of the position of side of the part on the left and right directions or the position higher than the straight line and it is With the position Chong Die or lower than the straight line across the straight line of multiple first light-emitting components of the other side being configured on left and right directions. Therefore, it is possible to be, first light-emitting component 55a~55c is with identical level configurations, and first light-emitting component 55e~55g is with identical height Configuration, specific first light-emitting component 55d is with the centre of first light-emitting component 55a~55c and first light-emitting component 55e~55g Level configurations.

In addition, in the above-described embodiment, enumerate and illustrate the non-uniform example in interval of multiple first light-emitting components 55, But multiple first light-emitting components 55 can be configured equally spaced.

In addition, in the above-described embodiment, enumerating the rear end of the first reflecting surface 43a of the upper surface for illustrating light shielding part 43 43d has the example of step 43ds corresponding with the shape of the "cut-off"line of the light distribution patterns of dipped beam, but can also be first The rear end 43d of reflecting surface 43a does not form step.

Utilization possibility in industry

According to the present invention, the headlight for automobile for being able to suppress enlargement is provided, which can utilize In the fields such as the headlight for automobile of automobile etc..

Claims

1. a kind of headlight for automobile, which is characterized in that have:

First light-emitting component, project become dipped beam the first light, the normal of the exit facet of first light towards front obliquely downward Side；

Second light-emitting component is configured at the lower section of first light-emitting component and projects the second light, the outgoing of second light The normal in face is towards front oblique upper；

Light shielding part extends forwards between first light-emitting component and second light-emitting component；And

Projecting lens is configured at the position on the front than the light shielding part, a part for first light and described A part of two light is directed through,

The light shielding part has the first reflecting surface for reflecting another part of first light in upper surface, so that described the Another part of one light penetrates the projecting lens, and has reflect another part of second light the in lower surface Two reflectings surface, so that another part of second light penetrates the projecting lens,

The front end of the light shielding part has up and down direction corresponding with the shape of the "cut-off"line of the light distribution patterns of the dipped beam Step.

2. headlight for automobile according to claim 1, which is characterized in that

First light-emitting component in left-right direction side by side equipped with multiple,

Multiple described the first of the side being configured on left and right directions on the basis of specific first light-emitting component shine The setting height of element and multiple first light-emitting components for being configured at the other side is different.

3. headlight for automobile according to claim 2, which is characterized in that

Specific first light-emitting component and a pair described first for being configured to clamp specific first light-emitting component are sent out Equispaced between optical element is less than the equispaced of other multiple first light-emitting components adjacent to each other.

4. headlight for automobile according to claim 2, which is characterized in that

When viewed from the front, the step possessed by the front end of specific first light-emitting component and the light shielding part exists It is overlapped in up and down direction, multiple institutes of side in the lateral direction is configured on the basis of specific first light-emitting component It states the first light-emitting component and is set to the position lower in multiple first light-emitting components of the other side than configuring, the light shielding part Front end is formed as on the basis of the step and the side on left and right directions is lower than the other side.

5. headlight for automobile according to claim 3, which is characterized in that

6. headlight for automobile according to any one of claims 1 to 5, which is characterized in that

The front end of the light shielding part is gradually rearward recessed from left and right end portions towards center.

7. headlight for automobile according to any one of claims 1 to 5, which is characterized in that

First reflecting surface of the upper surface of the light shielding part has convex surface part corresponding with the light distribution patterns of dipped beam.

8. headlight for automobile according to any one of claims 1 to 5, which is characterized in that

The rear end of first reflecting surface has step corresponding with the shape of the "cut-off"line of the light distribution patterns of the dipped beam.

9. headlight for automobile according to claim 8, which is characterized in that

When viewed from the front, the rear end of the step possessed by the front end of the light shielding part and first reflecting surface is had The step having is overlapped in the up-down direction.