KR101691847B1 - Head lamp for vehicle - Google Patents

Head lamp for vehicle Download PDF

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Publication number
KR101691847B1
KR101691847B1 KR1020150075865A KR20150075865A KR101691847B1 KR 101691847 B1 KR101691847 B1 KR 101691847B1 KR 1020150075865 A KR1020150075865 A KR 1020150075865A KR 20150075865 A KR20150075865 A KR 20150075865A KR 101691847 B1 KR101691847 B1 KR 101691847B1
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KR
South Korea
Prior art keywords
lens
light source
light
vehicle
incident
Prior art date
Application number
KR1020150075865A
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Korean (ko)
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KR20160139928A (en
Inventor
손영호
백창우
이준형
Original Assignee
에스엘 주식회사
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Priority to KR1020150075865A priority Critical patent/KR101691847B1/en
Publication of KR20160139928A publication Critical patent/KR20160139928A/en
Application granted granted Critical
Publication of KR101691847B1 publication Critical patent/KR101691847B1/en

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    • F21S48/12—
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/42—Forced cooling
    • F21S45/43—Forced cooling using gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F21S48/1208—
    • F21S48/1283—
    • F21S48/1317—
    • F21S48/31—
    • F21S48/328—
    • F21W2101/10—

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

Abstract

A headlamp for a vehicle according to an embodiment of the present invention includes a light source section including a plurality of light sources and a substrate disposed on one surface of the plurality of light sources, A lens having an exit surface through which light incident on the incidence surface is emitted, and a light source portion provided on the light source portion and a light source portion provided adjacent to the light source portion mounting end, the incidence surface being adjacent to the plurality of light sources And a lens mounting step in which the lens is installed to position the lens mount.

Description

[0001] The present invention relates to a head lamp for a vehicle,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a headlamp for a vehicle, and more particularly to a headlamp for a vehicle that provides illumination to the front of the vehicle.

2. Description of the Related Art [0002] Generally, a vehicle is provided with a variety of vehicle lamps having a lighting function for easily confirming an object located in the vicinity of the vehicle at nighttime, and a signal function for informing other users or road users of the running state of the vehicle.

Among the lamps mounted on the vehicle, the headlamp is a lamp including a function of securing the front view of the driver at nighttime driving, and generally includes a low beam (downward beam) irradiated near the front of the vehicle and a low beam It is equipped with a function to simultaneously or separately irradiate high beams (upward beams) irradiated to a long distance.

In the driver's viewpoint, it is the safest way to operate the vehicle because it is possible to simultaneously observe the driver's view of the near and far parts of the vehicle in front of the vehicle by simultaneously scanning the low beam and the high beam. However, It causes the glare of the pedestrian to be dangerous to prevent the visibility during the time required for the adaptation and the dark adaptation.

However, repeating the ON / OFF operation of the high beam by continuously checking the counter vehicle or pedestrian, etc., also hinders the safety of the vehicle operation, and the driver feels considerable inconvenience.

By complementing this, it is possible to automatically turn ON / OFF the high beams according to the presence or absence of the opponent vehicle and / or the preceding vehicle, or to control the irradiation angle and / or brightness of the low beam / high beam according to the road situation (street, highway, A driver assist system such as a driver assist system has been developed and commercialized.

Recently, an adaptive vehicle which detects an opposing vehicle, a preceding vehicle, a pedestrian, etc. from a video image in front of the vehicle and changes a lamp irradiation angle so that a high beam is not irradiated or a light source is turned off so that a detected vehicle, a pedestrian, It is evolving into an adaptive drive beam (ADB) technology.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a headlamp for a vehicle that emits a predetermined beam pattern toward the front of a vehicle without using a separate reflector.

In addition, it is an object of the present invention to provide a headlamp for a vehicle having a compact structure that can easily align a lens and a light source during an assembling process.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a headlamp for a vehicle, comprising: a light source section including a plurality of light sources and a substrate disposed on one surface of the plurality of light sources; A lens having a light emitting surface formed on an upper surface or a lower surface thereof and having an emission surface through which light incident on the incident surface is emitted and a light source mounting portion provided adjacent to the light source mounting portion, And a mount including a lens mounting end on which the lens is mounted so as to be positioned adjacent to the plurality of light sources.

The mounting portion of the light source may be formed to be upward or downward inclined toward the front.

The lens may be installed such that the incident surface is parallel to the light source unit mounting end.

The mounter may include at least one light source installation guide projected on one surface of the light source installation end, and the substrate may have at least one light source guide hole into which the light source installation guide is inserted.

The mount includes at least one lens mounting guide projected on one surface of the lens mounting end, and at least one lens guide hole into which the lens mounting guide is inserted may be formed in the lens.

Wherein the lens includes a first reflection surface formed at a lower portion of the emission surface and reflecting light incident into the lens through the incident surface to the rear side of the lens, at least a part of the rear surface of the lens, And a second reflecting surface reflecting the light reflected by the first reflecting surface toward the emitting surface.

Wherein the plurality of light sources are provided so as to irradiate light upward with respect to an optical axis of the lens, the exit surface is formed on the first reflection surface, and a part of the light emitted from the plurality of light sources is incident on the entrance surface Is reflected from the first reflection surface toward the second reflection surface, is reflected from the second reflection surface toward the emission surface, passes through the emission surface, and is irradiated to the front of the vehicle, and from the plurality of light sources And the other part of the emitted light passes through the incident surface, is reflected from the emitting surface toward the second reflecting surface, is reflected from the second reflecting surface toward the emitting surface, passes through the emitting surface, It can be irradiated forward.

The mounter may further include a plurality of radiating fins extending rearward from the installation end of the light source unit.

And a radiating fan unit coupled to the rear of the mounter so as to be adjacent to the plurality of radiating fins.

And a bezel portion that covers an edge of the emission surface and is coupled to the mounter so that at least a part of the emission surface is exposed.

The bezel portion may include an upper cover that covers an edge of the exit surface, and a lower cover that extends from the upper cover and covers the light source unit mounting end and the lens mounting end.

Other specific details of the invention are included in the detailed description and drawings.

The embodiments of the present invention have at least the following effects.

The beam pattern can be irradiated to the front of the vehicle without using a separate reflector.

In addition, the lens and light source can be easily aligned during assembly.

The effects according to the present invention are not limited by the contents exemplified above, and more various effects are included in the specification.

1 is a perspective view showing a front surface of a vehicle headlamp according to an embodiment of the present invention.
2 is a perspective view illustrating a rear view of a vehicle headlamp according to an embodiment of the present invention.
3 is an exploded perspective view of a vehicle headlamp according to an embodiment of the present invention.
4 is a perspective view illustrating a light source unit of a vehicle headlamp according to an embodiment of the present invention.
5 is a side view showing an alignment state of a light source unit and a lens of a vehicle headlamp according to an embodiment of the present invention.
6 is a front view showing a lens of a headlamp for a vehicle according to an embodiment of the present invention.
7 is a side view showing a lens of a headlamp for a vehicle according to an embodiment of the present invention.
8 is a rear view showing a lens of a headlamp for a vehicle according to an embodiment of the present invention.
9 is a cross-sectional view taken along the line AA in Fig.
10 is a sectional view taken along the line BB in Fig.
11 is a view schematically showing a correspondence relationship between a plurality of unit beam patterns formed by a vehicle headlamp according to the embodiments of the present invention and a plurality of light sources.
12 is a diagram showing a state in which a part of a plurality of unit beam patterns is turned off according to the appearance position of the opponent vehicle by the headlamp for a vehicle according to the embodiments of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Although the first, second, etc. are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are used only to distinguish one component from another.

Further, in describing embodiments of the present invention, the terms top, bottom, etc. are used, but are used only on the basis of the embodiments shown in the drawings. Therefore, when used up and down, it is understood that the upper part can be interpreted as a lower part and the lower part can be interpreted as an upper part within the technical spirit of the present invention.

Further, the embodiments described herein will be described with reference to cross-sectional views and / or schematic drawings that are ideal illustrations of the present invention. Thus, the shape of the illustrations may be modified by manufacturing techniques and / or tolerances. In addition, in the drawings of the present invention, each component may be somewhat enlarged or reduced in view of convenience of explanation. Like reference numerals refer to like elements throughout the specification.

DETAILED DESCRIPTION OF THE INVENTION Hereinafter, the present invention will be described with reference to the drawings for explaining a headlamp for a vehicle according to embodiments of the present invention.

FIG. 1 is a perspective view showing a front surface of a vehicle headlamp according to an embodiment of the present invention, FIG. 2 is a perspective view showing a rear surface of a vehicle headlamp according to an embodiment of the present invention, and FIG. 1 is an exploded perspective view of a vehicle headlamp according to an embodiment.

1 to 3, a vehicle headlamp 1 according to an embodiment of the present invention includes a lens 10, a light source 20, a mounter 30, a bezel 40, Unit 50 as shown in FIG.

As shown in Fig. 1, the bezel portion 40 is installed in front of the mounter 30 so that at least a part of the exit surface 14 of the lens 10 is exposed. As shown in Fig. 2, the heat radiating fan unit 50 is installed at the rear of the mounter 30. As shown in Fig.

As shown in FIG. 3, the mount 30 has a light source part mounting end 31 on which the light source part 20 is installed, at the center of the front face. One surface of the light source unit mounting step 31 is formed to be inclined downward toward the front and a plurality of light source unit mounting guides 31a and a first light source unit mounting hole 31b are formed on one surface of the light source unit mounting step 31. [ 1 to 3, when the mounter 30 is installed so as to be vertically inverted in the head lamp, one side of the light source unit installation end 31 may be inclined upward toward the front side.

The first light source unit mounting hole 31b protrudes substantially perpendicularly to one side of the light source unit mounting end 31 and the light source unit mounting end 31 is disposed substantially perpendicularly to one surface of the light source unit mounting end 31, As shown in Fig.

The light source installation guide 31a is inserted into the light source guide hole 26a formed in the substrate 26 of the light source 20 to align the mounting position of the light source 20. The first light source unit mounting hole 31b is a space into which a screw 63 for fixing the light source unit 20 to the light source unit mounting end 31 is inserted.

On both sides of the light source installation end 31, a lens installation end 32 is formed.

The lens mount surface 33, which is one surface of the lens mount stage 32, is formed to protrude from a surface of the light source mount stage 31, forming a step.

A lens mounting guide 33a, a first lens mounting hole 33b, and a first bezel mounting hole 33c are formed on each lens mounting surface 33. [

The first lens mounting hole 33b and the first bezel mounting hole 33c are formed so as to be substantially perpendicular to the lens mounting surface 33, And is recessed inward of the mounting end 32.

The lens mounting guide 33a is inserted into a lens guide hole 17b (see FIG. 8) formed in the leg 17 of the lens 10 to align the mounting position of the lens 10. [ The first lens installation hole 33b is a space into which the screw 62 for fixing the lens 10 to the lens installation end 32 is inserted and the first bezel installation hole 33c is a space for installing the bezel 40 And a screw 61 fixed to the stage 32 is inserted.

On the other hand, the mounter 30 includes a plurality of heat radiating fins 37 extending rearward from the light source installation end 31. The light source unit mounting step 31 and the radiating fin 37 are formed of a metal material having excellent thermal conductivity so that heat generated from the light source unit 20 can be effectively transferred to the radiating fin 37 through the light source unit mounting step 31. [

The mounter 30 includes a mounter side surface portion 34 extending rearward from the lens mounting ends 32 on both sides.

The mounter side surface portion 34 is formed so as to extend further to the rear side than the radiating fin 37. [ Therefore, the rear end of the mount side face portion 34 and the rear end of the heat radiating fin 37 form a stepped portion rearward. Therefore, a space 35 for installing a radiator fan unit is formed between the mounter side surfaces 34 on both sides.

2 and 3, the heat dissipating fan unit 50 is inserted into the heat dissipating fan unit installation space 35 and is installed at the rear of the mount 30.

A hook receiving hole 34a is formed in the mounter side surface portion 34. [ The hook receiving hole 34a is a space that receives and hooks the hook end 43 formed in the bezel portion 40. [

In addition, the mounter 30 includes a pair of lens supporting ends 38 extending upward from the lens mounting end 32. As shown in Fig. 3, each lens supporting end 38 has a shape protruding upward from the lens mounting end 32 and protruding forward from the mounter side surface portion 34. As shown in Fig. 1 to 3, when the mounter 30 is installed so as to be vertically inverted in the headlamp 1, the pair of lens supporting ends 38 extend downward from the lens mounting end 32 The shape can be formed.

Between the pair of lens supporting ends 38, a lens accommodation space 36 in which the rear portion of the lens 10 is accommodated is formed. Each lens support end 38 supports the second side 16b of the lens 10 and at the same time supports the stopper 18 protruding from the side 16 of the lens 10. [

The bezel 40 includes an upper cover 42 covering the edge of the exit surface 14 of the lens 10 mounted on the mounter 30 and an upper cover 42 extending from the upper cover 42, And a lower cover 45 covering the lens mounting end 32. [ 1 to 3, when the mounter 30 and the bezel 40 are installed so as to be vertically inverted in the headlamp 1, the upper cover 42 is disposed below the lower cover 45 Can be located.

An opening 41 is formed on the front surface of the upper cover 42 so that at least a part of the exit surface 14 is exposed and an opening 41 is formed inside the upper cover 42 to project the first side surface 16a of the lens 10 At least one protrusion 44 is formed. The projection 44 prevents the occurrence of a gap between the bezel 40 and the lens 10, and makes the lens 10 more firmly fixed.

At the rear end of the upper cover 42, a hook end 43 extending rearward is provided. The hook end 43 is received in the hook receiving hole 34a of the mounter 30 and is hooked to the hook receiving hole 34a to fix the bezel 40 to the mounter 30 as described above.

A second bezel mounting hole 46 is formed in the lower cover 45 so as to correspond to the first bezel mounting hole 33c of the mounter 30. The screw 61 sequentially passes through the second bezel mounting hole 46 and the first bezel mounting hole 33c to fix the bezel 40 to the lens mounting end 32. [

The heat radiating fan unit 50 includes a case 51 having a radiating fan terminal 53 and a radiating fan 52 rotatably installed inside the case 52. [ The heat radiating fan terminal 53 is a port to which power and control signals for rotating the heat radiating fan 52 are applied.

In the case 51, a plurality of case mounting holes 51a are formed. The heat dissipating fan unit 50 is fixed to the mount 30 by a screw 64 inserted through the case mounting hole 51a and inserted into the mount 30. To this end, a plurality of screw insertion holes (not shown) corresponding to the case mounting holes 51a may be formed on the rear surface of the mount 30.

4 is a perspective view illustrating a light source unit of a vehicle headlamp according to an embodiment of the present invention.

3 and 4, the light source unit 20 includes a plurality of light sources 21 to 25, a substrate 26, and a light source unit terminal 27.

The plurality of light sources 21 to 25 may be light emitting diodes such as LEDs and LDs. As shown in FIGS. 3 and 4, in the present embodiment, five diode light sources 21 to 25 are used. However, the present invention is not limited to this, can be changed.

A circuit for driving the plurality of light sources 21 to 25 is printed on the substrate 26. Power and control signals applied through the light source unit terminals 27 are transmitted through the substrate 26 to the plurality of light sources 21 to 25, .

As shown in FIG. 4, the substrate 26 has a light source guide hole 26a and a second light source unit mounting hole 26b.

As described above, the light source guide hole 26a is inserted into the light source installation guide 31a of the mounter 30 so that the mounting position of the light source 20 is aligned.

The second light source unit mounting hole 26b is formed to correspond to the first light source unit mounting hole 31b so that the screw 63 sequentially passes through the second light source unit mounting hole 26b and the first light source unit mounting hole 31b The light source unit 20 is fixed to one surface of the light source unit mounting stage 31.

5 is a side view showing an alignment state of a light source unit and a lens of a vehicle headlamp according to an embodiment of the present invention. 5 shows an alignment state of the lens 10 and the light source 20 in a state in which the mount 30 is installed.

As shown in FIG. 5, the light source unit 20 is positioned below the lens 10.

The position of the light source unit 20 is determined by the light source unit mounting guide 31a and the first light source unit mounting hole 31b of the mount 30 and one side of the light source unit mounting end 31 is formed to be inclined downward forward 5, the light source unit 20 is also installed so as to have the same downward inclination as the one surface of the light source unit installation end 31. As shown in FIG.

When the mounter 30 is installed so as to be vertically inverted in the headlamp, the light source unit 20 may be positioned above the lens 10. In this case, the light source unit mounting step 31 and the light source unit 20 may be inclined upward toward the front side.

The lens 10 is fixed on the lens mounting surface 33 protruding from the one surface of the light source unit mounting step 31 and is positioned on the light source unit 20.

The position of the lens 10 is determined by the lens mount guide 33a of the lens mount surface 33 and the first lens mount hole 33b. The lens 10 is provided such that the incident surface 11 formed on the lower portion of the lens 10 is positioned substantially perpendicular to the optical axis of the plurality of light sources 21 to 25. To this end, the incident surface 11 is positioned substantially parallel to one surface of the light source unit mounting end 31 in a state in which the lens 10 is mounted on the mount 30.

The relative positions of the incident surface 11 of the lens 10 and the plurality of light sources 21 to 25 in the vehicle headlamp 1 according to the embodiment of the present invention It is an important factor to shape the beam pattern. When the relative positions of the lens 10 and the light source 20 are assembled differently from each other, a normal beam pattern may not be formed.

The headlamp 1 for a vehicle according to the present embodiment includes a light source unit mounting guide 31a formed on one surface of the light source unit mounting end 31 and a light source guide hole 26a formed in the light source unit 20, The position of the lens 20 is determined and the position of the lens 10 is determined through the lens mounting guide 33a formed on the lens mounting surface 33 and the lens guide hole 17b formed on the lens 10 , The plurality of light sources (21 to 25) and the incident surface (11) of the lens (10) are aligned.

The light emitted from the plurality of light sources 21, 22, 23, 24 and 25 is transmitted through the lens 10 to a plurality of unit beam patterns L1, L2, L3, L4 and L5 ).

The plurality of unit beam patterns L1, L2, L3, L4, and L5 may be used as an adaptive driving beam pattern that is individually blinked according to the position of the opposing vehicle. In this case, the plurality of light sources 21, 22, 23, 24, and 25 may be connected to a controller (not shown) and individually controlled to be flickered.

The plurality of light sources 21, 22, 23, 24, and 25 are arranged so that focus is formed at different positions so that a plurality of unit beam patterns L1, L2, L3, L4, and L5 are formed at different positions.

Hereinafter, a lens according to an embodiment of the present invention will be described in detail.

FIG. 6 is a front view showing a lens of a headlamp for a vehicle according to an embodiment of the present invention, FIG. 7 is a side view showing a lens of a headlamp for a vehicle according to an embodiment of the present invention, FIG. 9 is a cross-sectional view taken along the line AA in FIG. 6, and FIG. 10 is a cross-sectional view taken along the line BB in FIG.

6 to 8, the lens 10 has an asymmetrical shape in the up-and-down direction and the back-and-forth direction and has a base surface 15, an incident surface 11, a first reflection surface 12, 2 reflection surface 13, an exit surface 14, a side surface 16, a leg 17, and a stopper 18. As shown in Fig.

As shown in FIG. 6, the first reflecting surface 12 and the emitting surface 14 form the front surface of the lens 10.

The first reflecting surface 12 forms the front lower part of the lens 10 and the emitting surface 14 forms the upper front part of the lens 10. The first reflecting surface 12 and the emitting surface 14 may be formed to be interconnected.

As shown in Fig. 7, the exit surface 14 may have a convex shape forward. As shown in Fig. 9, the lower portions of the first reflection surface 12 and the emission surface 14 have a convex shape on both the left and right sides, as compared with the central portion. That is, the central portion of the first reflecting surface 12 and the emitting surface 14 has a concave shape compared to both the left and right sides.

The first reflection surface 12 is located at the upper portion of the front surface of the lens 10 and the emission surface 14 is located at the upper surface of the lens 10, And may be positioned below the front surface of the lens 10.

The first reflection surface 12 is coated with a metal layer such as aluminum or chromium having a high optical reflectance and is emitted from a plurality of light sources 21, 22, 23, 24 and 25 and is incident on the lens 10 through the incident surface 11. [ So that the light incident into the second reflecting surface 13 can be effectively reflected toward the second reflecting surface 13.

6 to 8, the lens 10 includes a first reflecting surface 12 and a side surface 16 connecting the emitting surface 14 with the second reflecting surface 13. The side surface 16 is divided into a first side surface 16a and a second side surface 16b by a stopper 18 protruding from both sides.

The stopper 18 is supported by the front end of the lens supporting end 38 of the mounter 30 so that the lens 10 is supported by the mounter 30 from behind. The first side surface 16a is supported by the projection 44 of the bezel 40 so that the bezel 40 supports the lens 10 from the front side. On the other hand, the second side surface 16b can be supported by the inner surface of the lens supporting end 38. [

The legs (17) extend forward from the side surface (16). The legs 17 can be formed to extend forward while maintaining the same angle as the angle of the incident surface 11. The leg 17 is seated on the lens mounting surface 33 of the mounter 30 and the second lens mounting hole 17a is formed through the leg 17 as shown in Figures 8 and 9 . 8 and 9, the lens guide hole 17b is also formed to be recessed from the lower surface of the leg 17 to a certain depth.

As shown in Figs. 7 and 8, the base surface 15 and the incident surface 11 form the lower surface of the lens 10. The incident surface 11 extends from one side of the base surface 15 and forms a reverse oblique surface which is formed downward with respect to the optical axis X of the lens 10.

The lens 10 is also vertically inverted so that the base surface 15 and the incident surface 11 can form the upper surface of the lens 10. In this case, In this case, the incident surface 11 forms an inclined surface which is formed upwardly with respect to the optical axis X.

As shown in Fig. 10, the plurality of light sources 21, 22, 23, 24, and 25 are provided so as to emit light toward the incident surface 11 and the first reflecting surface 12, respectively. As a result, it is installed so as to irradiate light upward with respect to the optical axis X of the lens 10.

As shown in Figs. 7 and 8, the second reflecting surface 13 forms the rear surface of the lens 10. The second reflecting surface 13 is formed to connect the rear end of the base surface 15 and the upper end of the emitting surface 14 and reflects the light incident on the second reflecting surface 13 to the emitting surface 14.

The second reflection surface 13 may also be configured such that a metal layer such as aluminum or chromium having a high optical reflectance is coated so that the light incident on the second reflection surface 13 is effectively reflected toward the emission surface 14. [

Referring to Fig. 10, the vertical optical path of the light emitted from the light source will be described.

Part (L A) of the, light (L A, L B) emitted from the light source (21-25) as shown in Figure 10 after being through an entrance face (11) incident on the inner lens 10, the Reflected by the first reflecting surface 12 toward the second reflecting surface 13 and then reflected by the second reflecting surface 13 and emitted from the lens 10 through the exit surface 14 to be irradiated forward Thereby forming a pattern.

Then, at the outgoing surface 14 after the through another portion (L B) is incident surface 11 of the light (L A, L B) emitted from the light source (21-25) joined to the inner lens (10) The beam is totally reflected and is directed to the second reflection surface 13 and then reflected by the second reflection surface 13 to be emitted from the lens 10 through the emission surface 14 to be irradiated forward of the vehicle.

For this purpose, the emitting surface 14 is formed by arranging the light beams L A and L B emitted from the light sources 21 to 25 not to be directed to the first reflecting surface 12, Is formed with a curvature capable of total reflection toward the slope (13).

As shown in FIG. 10, the light reflected by the first reflection surface 12 and the second reflection surface 13 out of the lights L A and L B emitted from the light sources 21 to 25 is reflected by the exit surface 14 The emitted light L A is mostly directed to the front of the vehicle through the lower portion of the exit surface 14. Among the lights L A and L B emitted from the light sources 21 to 25, the light L (L) reflected by the second reflection surface 13 after being totally reflected by the exit surface 14 and emitted to the exit surface 14 B are mostly irradiated to the front of the vehicle through the upper portion of the exit surface 14.

The light the first reflection surface 12 and the second reflected by the reflective surface 13 the light (L A) exiting the exit surface 14 of the (L A, L B) emitted from the light source (21 to 25) Since the reflection angle reflected by the first reflection surface 12 is relatively small, a beam pattern formed by the light L A is formed narrow to form a beam pattern having a relatively high luminous intensity.

Among the lights L A and L B emitted from the light sources 21 to 25, the light L (L) reflected by the second reflection surface 13 after being totally reflected by the exit surface 14 and emitted to the exit surface 14 B has a relatively large reflection angle reflected from the exit surface 14, and thus a beam pattern formed by the light L B is formed to be wide, so that a beam pattern having a relatively low luminous intensity is formed.

The headlamp for a vehicle according to the present embodiment is configured such that the optical system of the conventional vehicle headlamp is constructed based on a light source, a lens, and a reflector that reflects the light emitted from the light source toward the lens, And the lens 10 are used to form a beam pattern.

Therefore, not only the time, effort, and cost for designing the reflector can be reduced, but also the space for installing the reflector can be omitted, thereby making it possible to manufacture a more compact headlamp for a vehicle.

11 is a view schematically showing a correspondence relationship between a plurality of unit beam patterns formed by a vehicle headlamp according to the embodiments of the present invention and a plurality of light sources.

11, the headlamp for a vehicle according to the embodiments of the present invention includes beam patterns L1, L2, L3, L4, and L5 that are irradiated to the front of the vehicle using light emitted from the light sources 21 to 25, .

Although five unit beam patterns L1, L2, L3, L4 and L5 are formed by using five light sources 21, 22, 23, 24 and 25 in this embodiment, The number of light sources may vary depending on the number of beam patterns.

An example in which a plurality of unit beam patterns L1, L2, L3, L4, and L5 are extended in a row is arranged in a row by arranging a plurality of light sources 21, 22, 23, 24, However, it is also possible to arrange a plurality of light sources in a plurality of rows to form a plurality of unit beam patterns formed in a plurality of rows.

Each of the light sources 21, 22, 23, 24 and 25 forms a plurality of unit beam patterns L1, L2, L3, L4 and L5 constituting a beam pattern. 13, each of the unit beam patterns L1, L2, L3, L4, and L5 may be formed so as to overlap a certain portion of the adjacent unit beam pattern.

11, the arrangement order of the unit beam patterns L1, L2, L3, L4, and L5 by the headlamp for a vehicle according to the embodiments of the present invention is a plurality of light sources 21, 22, 23, 24 , 25 and the left and right directions.

12 is a diagram showing a state in which a part of a plurality of unit beam patterns is turned off according to the appearance position of the opponent vehicle by the headlamp for a vehicle according to the embodiments of the present invention. 12 is a diagram showing a state in which a part of a plurality of unit beam patterns is turned off according to the appearance position of the opponent vehicle by the headlamp for a vehicle according to the embodiments of the present invention.

12, in the vehicle headlamp according to the embodiments of the present invention, when the opposing vehicle is located in front of the vehicle, the unit beam pattern L2 illuminating the corresponding area is turned off, L2 are turned off. When the opposing vehicle disappears in the corresponding area, the light source 22 of the corresponding unit beam pattern L2 is turned on so that the unit beam pattern L2 illuminating the corresponding area is turned on.

As shown in FIG. 12, a headlamp for a vehicle according to embodiments of the present invention can illuminate an adaptive driving beam pattern.

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

1: vehicle headlamp 10, 110: lens
11: incident surface 12, 112: first reflection surface
12a, 12b, 12c, 112a, 112b, and 112c:
13, 113: second reflection surface 14: emission surface
15: base surface 16: side surface
16a: first side 16b: second side
17: Leg 17a: Second lens mounting hole
17b: Lens guide hole 18: Stopper
20: light source units 21, 22, 23, 24, 25:
26: substrate 26a: light source guide hole
26b: second light source portion mounting hole 27: light source portion terminal
30: Mounter 31: Light source unit installation stage
31a: light source installation guide 31b: first light source installation hole
32: Lens Mounting Step 33: Lens Mounting Surface
33a: lens mounting guide 33b: first lens mounting hole
33c: first bezel mounting hole 34: mounter side surface
34a: hook receiving hole 35: space for installing the heat radiating fan unit
36: Lens accommodating space 37: Radiating fin
38: lens supporting end 40: bezel part
41: opening 42: upper cover
43: hook end 44: projection
45: lower cover 50: heat radiating fan unit
51: Case 51a: Case mounting hole
52: heat radiating fan 53: heat radiating fan terminal
61, 62, 63, 64: screw

Claims (11)

A light source unit including a plurality of light sources and a substrate on which the plurality of light sources are disposed;
A lens having an incident surface on which light emitted from the plurality of light sources is incident is formed on an upper portion or a lower portion and an exit surface through which light incident on the incident surface is emitted is formed on the entire surface; And
And a mount including a lens mounting end formed adjacent to the light source mounting end of the light source unit and adjacent to the light source mounting end, the lens mounting end of the lens mounting end being adjacent to the plurality of light sources,
Wherein the lens further comprises a leg extending at an angle equal to the angle of the incidence surface. The method according to claim 1,
Wherein the light source unit mounting end is formed to be inclined upward or downward toward the front. 3. The method of claim 2,
Wherein the lens is installed so that the incident surface is in parallel with the light source unit mounting end. 3. The method of claim 2,
The above-
And at least one light source installation guide protruding from one surface of the light source installation end,
Wherein at least one light source guide hole into which the light source installation guide is inserted is formed in the substrate. 3. The method of claim 2,
The above-
And at least one lens mounting guide protruding from one surface of the lens mounting end,
Wherein at least one lens guide hole into which the lens installation guide is inserted is formed in the lens. The method according to claim 1,
The lens,
A first reflecting surface formed on the lower surface of the emitting surface and reflecting light incident into the lens through the incident surface to the rear side of the lens;
And a second reflecting surface that forms at least a part of the rear surface of the lens and reflects the light reflected by the first reflecting surface toward the emitting surface. The method according to claim 6,
Wherein the plurality of light sources are provided so as to irradiate light upward with respect to an optical axis of the lens, the emission surface is formed on an upper portion of the first reflection surface,
A part of the light emitted from the plurality of light sources passes through the incident surface, is reflected from the first reflection surface toward the second reflection surface, is reflected from the second reflection surface toward the emission surface, Passes through the front of the vehicle,
And the other part of the light emitted from the plurality of light sources passes through the incident surface, is reflected from the emission surface toward the second reflection surface, is reflected from the second reflection surface toward the emission surface, And is irradiated to the front of the vehicle. The method according to claim 1,
Wherein the mount further comprises a plurality of radiating fins extending rearward from the light source installation end. 9. The method of claim 8,
And a radiating fan unit coupled to the rear of the mounter so as to be adjacent to the plurality of radiating fins. The method according to claim 1,
Further comprising a bezel portion that covers an edge of the exit surface and is coupled to the mount so that at least a part of the exit surface is exposed. 11. The method of claim 10,
The bezel portion
An upper cover covering an edge of the exit surface;
And a lower cover extending from the upper cover and covering the light source unit installation end and the lens installation end.
KR1020150075865A 2015-05-29 2015-05-29 Head lamp for vehicle KR101691847B1 (en)

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KR101691847B1 true KR101691847B1 (en) 2017-01-02

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100993226B1 (en) * 2009-12-23 2010-11-09 주식회사 금호에이치티 Led lamp module
JP2014029775A (en) * 2012-07-31 2014-02-13 Stanley Electric Co Ltd Head lamp for vehicle
JP2014102988A (en) * 2012-11-20 2014-06-05 Koito Mfg Co Ltd Vehicle lamp fitting

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100993226B1 (en) * 2009-12-23 2010-11-09 주식회사 금호에이치티 Led lamp module
JP2014029775A (en) * 2012-07-31 2014-02-13 Stanley Electric Co Ltd Head lamp for vehicle
JP2014102988A (en) * 2012-11-20 2014-06-05 Koito Mfg Co Ltd Vehicle lamp fitting

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