KR101628290B1 - Head lamp for vehicles - Google Patents

Head lamp for vehicles Download PDF

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Publication number
KR101628290B1
KR101628290B1 KR1020100004520A KR20100004520A KR101628290B1 KR 101628290 B1 KR101628290 B1 KR 101628290B1 KR 1020100004520 A KR1020100004520 A KR 1020100004520A KR 20100004520 A KR20100004520 A KR 20100004520A KR 101628290 B1 KR101628290 B1 KR 101628290B1
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KR
South Korea
Prior art keywords
light
shield
light source
main body
blocking portion
Prior art date
Application number
KR1020100004520A
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Korean (ko)
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KR20110084786A (en
Inventor
이규섭
Original Assignee
현대모비스 주식회사
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Application filed by 현대모비스 주식회사 filed Critical 현대모비스 주식회사
Priority to KR1020100004520A priority Critical patent/KR101628290B1/en
Publication of KR20110084786A publication Critical patent/KR20110084786A/en
Application granted granted Critical
Publication of KR101628290B1 publication Critical patent/KR101628290B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
    • F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
    • F21S41/698—Shaft-shaped screens rotating along its longitudinal axis

Abstract

The present invention relates to a headlamp for a vehicle, and more particularly, to a headlamp for a vehicle in which the structure is simplified and its manufacturing is simplified and control is facilitated.
The present invention provides a light emitting device comprising: a light source for emitting light; And a shield for shielding light emitted from the light source to realize a light distribution pattern; And a rotation axis of the shield is disposed to be spaced apart from a center of the light source.

Description

HEAD LAMP FOR VEHICLES

The present invention relates to a headlamp for a vehicle, and more particularly, to a headlamp for a vehicle in which the structure is simplified and its manufacturing is simplified and control is facilitated.

Generally, a vehicle lamp includes a head lamp installed at the front of the vehicle and a rear lamp installed at the rear of the vehicle.

A headlamp includes a fog lamp that illuminates the front and illuminates the front during nighttime operation, a fog lamp that allows other vehicles or pedestrians to recognize the vehicle easily in the case of snow, rain, and fog, and a turn signal lamp that indicates the traveling direction of the vehicle .

The rear lamp includes a brake light that is turned on when the driver operates the brake, a rear lighting lamp that lights up when the vehicle is reversing, and a turn signal lamp that indicates the traveling direction of the vehicle.

BACKGROUND ART [0002] Recently, various light sources such as LEDs (Light Emitting Diodes) have been applied to lamps for vehicles, and include a light source for emitting light and a reflector for reflecting forward light emitted from a light source.

The technical structure described above is a background technique for assisting the understanding of the present invention, and does not mean the prior art widely known in the technical field to which the present invention belongs.

The vehicle headlamp according to the related art has a problem in that the structure of the shield for changing the light distribution pattern is complicated because various light distribution patterns such as the downward light and the upward light are required according to the running state of the vehicle or the driver's request.

Therefore, there is a need for improvement.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a headlamp for a vehicle in which the structure is simplified and the manufacturing is simplified and control is facilitated.

According to an aspect of the present invention, there is provided a light source device comprising: a light source for emitting light; And a shield for shielding light emitted from the light source to realize a light distribution pattern; And a rotation axis of the shield is disposed to be spaced apart from a center of the light source.

Further, the shield of the present invention may include: a main body rotatably installed in a reflector for forwardly reflecting light emitted from the light source; And a shielding part protruding from the outer surface of the main body and shielding light emitted from the light source.

Further, the uppermost outer side surface of the main body of the present invention is disposed on the lower side in comparison with the center of the light source.

Further, the rotation shaft distance of the shield of the present invention is 0.7 to 0.8 times as much as the end distance of the shield.

Further, the radius of the body of the present invention is 0.2 to 0.3 times as large as the end distance of the shield.

Further, the blocking unit of the present invention may include a first blocking unit protruding from the main body and implementing a downward light required in a general national road; A second blocking portion protruding from the main body and embodying a downward light required in a city center; A third blocking portion protruding from the main body and implementing a downward light required in the highway; And a fourth blocking portion protruding from the main body and implementing a downward light required in a rainy time.

The headlamp for a vehicle according to the present invention has a structure in which the structure of the shield is simplified since the shield is disposed on the lower side from the light source and the diameter of the shield is small and a separate structure for realizing the upward light is not required. Accordingly, since the number of steps of the mold to be manufactured when the shield is manufactured is reduced, the time and cost required for manufacturing the shield can be reduced.

In addition, since the shield of the headlamp for a vehicle according to the present invention can realize an upward light in all the portions where no shielding portion is formed, precise control for the implementation of the upward light is not required, and the shield can be easily controlled.

1 is an exploded perspective view illustrating a headlamp for a vehicle according to an embodiment of the present invention.
2 is a perspective view showing a shield of a headlamp for a vehicle according to an embodiment of the present invention.
3 is a view showing a shield mounting position of a vehicle headlamp according to an embodiment of the present invention.
4 is a cross-sectional view illustrating a downward lighting state of a vehicle headlamp according to an embodiment of the present invention.
5 is a cross-sectional view illustrating a downward lighting state of a headlamp for a vehicle according to an embodiment of the present invention during a rainy day.
FIG. 6 is a cross-sectional view illustrating a headlight state of a vehicle headlamp according to an embodiment of the present invention.

Hereinafter, an embodiment of a vehicle headlamp according to the present invention will be described with reference to the accompanying drawings.

In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are terms defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator.

Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is an exploded perspective view of a vehicle headlamp according to an embodiment of the present invention, and FIG. 2 is a perspective view illustrating a shield of a headlamp for a vehicle according to an embodiment of the present invention.

1 and 2, a vehicle headlamp according to an embodiment of the present invention includes a light source 10 for emitting light, a shield for blocking a part of light emitted from the light source 10 to realize a light distribution pattern, (30).

The light source 10 is installed at the center of the inside of the concave reflector 50 and the shield 30 is rotatably installed at the front end of the reflector 50.

The shield 30 is rotated by the driving unit 52 installed on the side surface of the reflector 50 to realize various light distribution patterns.

The shield 70 is attached to the front end of the reflector 50 so that the shield 70 rotatably supports the shield 30. The light passing through the shield 30 passes through the lens 72 .

Here, since the rotation axis of the shield 30 is disposed so as to be spaced apart from the center of the light source 10, the light that implements the upward light is irradiated forward of the vehicle without passing through the shield 30.

The light that implements the upward light is irradiated downward from the light source 10, then reflected by the reflector 50 to the upper portion of the lens 72, and refracted upward by the lens 72 to realize the upward light.

At this time, when the rotation axis of the shield 30 is separated from the center of the light source 10 by a predetermined distance or more in the downward direction, the light that implements the upward light is not blocked by the shield 30.

Therefore, the shield 30 does not require a separate groove or hole for the upward light.

The shield 30 includes a main body 32 rotatably installed in a reflector 50 that reflects the light emitted from the light source 10 forward and a light source 10 protruding from the outer surface of the main body 32, And a blocking portion 34 for blocking a part of the light to be irradiated.

When the shield 30 is rotated by the driving unit 52 to dispose the blocking unit 34 on the upper side of the shield 30, the light radiated downward from the light source 10 is reflected by the reflector 50 And then blocked by the blocking portion.

On the other hand, light radiated upward from the light source 10 is reflected to the lower portion of the lens 72 by the reflector 50, and irradiated to the lower portion of the front side of the vehicle by the lens 72 to realize downward light.

3 is a view showing a shield mounting position of a vehicle headlamp according to an embodiment of the present invention.

2 and 3, the uppermost outer side surface of the main body 32 is disposed below the center of the light source 10, so that when the shielding portion 34 is disposed below the shield 30, The outer surface of the body 32 on which the blocking portion 34 is not formed is disposed at the upper end of the shield 30 so that the light forming the upward light is not blocked by the blocking portion 34. [

When the upward light is implemented, a separate groove or hole for preventing the light from being blocked by the shield 30 is not required, so that the structure of the shield 30 is simplified.

The distance b of the rotation axis of the shield 30 is preferably 0.7 to 0.8 times as large as the distance a of the shield 30.

The end distance a of the shield 30 means the distance from the center of the light source 10 to the outer surface of the main body 32. The outer surface a of the main body 32 for measuring the end distance a, Is defined as the outer surface of the main body 32 disposed farthest from the center of the light source 10.

The distance b of the rotation axis of the shield 30 means the distance from the center of the light source 10 to the rotation axis of the shield 30.

The radius c of the main body 32 is preferably 0.2 to 0.3 times as large as the end distance a of the shield 30.

Since the distance between the axis of rotation b of the shield 30 and the radius c of the main body 32 is the same as the distance a of the end of the shield 30, The radius c of the main body 32 is 0.3 times the end distance a of the shield 30 when the end distance a of the shield 30 is 0.7 times the end distance a of the shield 30.

The radius c of the main body 32 is 0.3 times the end distance a of the shield 30 when the rotation axis distance b of the shield 30 is less than 0.7 times the end distance a of the shield 30. [ The outer surface of the main body 32 may cover the center of the light source 10.

When the distance b of the axis of rotation 30 of the shield 30 is less than 0.7 times the distance a of the end of the shield 30 and the radius c of the body 32 is 0.3 of the end distance a of the shield 30 The distance between the outer surface of the main body 32 and the center of the light source 10 is short even when the outer surface of the main body 32 does not cover the center of the light source 10 so that it is difficult to arrange the cut- do.

When the rotational axis distance b of the shield 30 exceeds 0.8 times the end distance a of the shield 30 and the radius c of the main body 32 is less than 0.2 times the end distance a of the shield 30 The distance from the outer surface of the main body 32 to the center of the light source 10 is too long, so that the blocking portion 34 becomes longer than necessary.

The blocking portion 34 includes a first blocking portion 34a protruding from the main body 32 and implementing a downward light required in a general national road and a second blocking portion 34b protruding from the main body 32, A third blocking portion 34c that protrudes from the main body 32 and implements downward light required in the highway and a third blocking portion 34c that protrudes from the main body 32 and implements a downward light 4 blocking portion 34d.

The first blocking portion 34a is a member for realizing a downward light of a general vehicle and the second blocking portion 34b is a member for allowing the light to be radiated more laterally when the vehicle is traveling in a bright urban area And the third blocking portion 34c is a member for allowing the light radiated forward of the vehicle to be irradiated more far when the motorway runs on the highway.

The fourth blocking portion 34d is a member protruding outward from the central portion of the main body 32 as compared with the first blocking portion 34a, the second blocking portion 34b and the third blocking portion 34c Downward, etc. are blocked much compared with the first blocking portion 34a to the third blocking portion 34c.

Therefore, since the light directed to the road surface is blocked, light is reflected by the water film formed on the road at the time of rainstorming so as not to obstruct the view of the driver or the driver of the opposite side lane.

Since the fourth blocking portion 34d protrudes further from the main body 32 than the first blocking portion 34a to the third blocking portion 34c, it is difficult to form the fourth blocking portion 34d integrally with the main body 32. However, Since the exemplary body 32 is formed on the lower side from the center of the light source 10 with a limited radius as described above, it is possible to easily design the body 32 in which the fourth blocking portions 34d are integrally formed.

The operation of the vehicle headlamp according to one embodiment of the present invention will now be described.

FIG. 4 is a cross-sectional view illustrating a downward lighting state of a vehicular headlamp according to an embodiment of the present invention, FIG. 5 is a sectional view of a vehicular headlamp according to an embodiment of the present invention, And FIG. 6 is a cross-sectional view illustrating the state of the headlight of the vehicle headlamp according to an embodiment of the present invention.

4 to 6, power is supplied to the light source 10 when the downward light is operated by the driver while the vehicle is traveling, and the shield 30 is rotated by the driving unit 52 (see FIG. 1) 34 are arranged on the upper side.

Light irradiated from the light source 10 is reflected by the reflector 50, then passes through the shield 30 and is refracted by the lens 72 toward the front of the vehicle.

At this time, the light radiated downward from the light source 10 is blocked by the blocking portion 34 after being reflected by the reflector 50, and the light radiated upward from the light source 10 is reflected by the reflector 50 And is refracted in the lower direction of the front of the vehicle by the lens 72 to implement downward light.

The driver can operate the downward direction corresponding to each running state when driving the general highway, the downtown area, and the highway. At this time, the shield 30 is rotated by the driving part 52 and the first blocking part 34a, The second blocking portion 34b and the third blocking portion 34c are disposed at the upper end of the shield 30, respectively.

Since the fourth blocking portion 34d is disposed at the upper end of the shield 30 by the driving unit 52 during rainy weather, the light irradiated to the front lower side of the vehicle is reduced, and the light is prevented from being reflected by the water film formed on the road .

When the driver manipulates the upward light, the shielding portion 34 is rotated by the driving portion 52 so as to be disposed below the shield 30, so that the outer surface of the main body 32 is disposed at the upper end of the shield 30.

At this time, since the outer side surface of the main body 32 is disposed at a predetermined distance away from the center of the light source 10 in the downward direction, the light emitted in the upward direction of the vehicle front is not blocked.

The outer surface of the main body 32 on which the blocking portion 34 is not formed is approximately 90 degrees out of 360 degrees of rotation so that the upward angle can be realized even when the angle of rotation of the shield 30 is not accurately controlled do.

Therefore, since the margin of error of the control operation for the upside-down implementation is widened, the headlamp control becomes easy.

This makes it possible to provide a headlamp for a vehicle in which the structure is simplified, manufacturing is simplified, and control is facilitated.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. .

Also, although a headlamp for a vehicle has been described as an example, this is merely an example, and the headlamp of the present invention can be used for products other than a vehicle.

Accordingly, the true scope of the present invention should be determined by the following claims.

10: Light source 30: Shield
32: main body 34:
50: Reflector 52:
70: cover 72: lens

Claims (6)

A light source for irradiating light; And
And a shield for shielding light emitted from the light source to realize a light distribution pattern;
The rotation axis of the shield is disposed so as to be spaced apart from the center of the light source,
The shield
A main body rotatably installed in a reflector for forwardly reflecting light emitted from the light source; And
On the outer surface of the main body And a shielding portion protruding from the light source and shielding light emitted from the light source,
The uppermost outer side surface of the main body is disposed on the lower side in comparison with the center of the light source,
Wherein a sum of a distance between a rotation axis of the shield and a radius of the main body is equal to an end distance of the shield, wherein a rotation axis distance of the shield is 0.7 to 0.8 times the end distance of the shield, Is 0.2 to 0.3 times larger than the end distance of the shield,
The blocking unit is rotated by a driving unit in a downward direction and is positioned on a path of light irradiated from the light source,
Wherein the blocking portion is rotated by the driving unit when the upward light is implemented and deviated from the light path of the light emitted from the light source.
delete delete delete delete The apparatus according to claim 1,
A first blocking portion protruding from the main body and implementing a downward light required in a general national road;
A second blocking portion protruding from the main body and embodying a downward light required in a city center;
A third blocking portion protruding from the main body and implementing a downward light required in the highway; And
And a fourth blocking portion protruding from the main body and realizing a downward light required in a rainy weather.
KR1020100004520A 2010-01-18 2010-01-18 Head lamp for vehicles KR101628290B1 (en)

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KR1020100004520A KR101628290B1 (en) 2010-01-18 2010-01-18 Head lamp for vehicles

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Application Number Priority Date Filing Date Title
KR1020100004520A KR101628290B1 (en) 2010-01-18 2010-01-18 Head lamp for vehicles

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KR20110084786A KR20110084786A (en) 2011-07-26
KR101628290B1 true KR101628290B1 (en) 2016-06-08

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101356151B1 (en) 2011-05-23 2014-01-24 에스엘 주식회사 Automotive headlamp system and cotrolling method for the same
KR101279082B1 (en) * 2011-11-09 2013-06-26 에스엘 주식회사 Apparatus and method for changing beam pattern of vehicle
KR101249003B1 (en) * 2011-11-25 2013-04-01 에스엘 주식회사 Apparatus and method for controlling head lamp
DE102011087225A1 (en) * 2011-11-28 2013-05-29 Automotive Lighting Reutlingen Gmbh Projection light module for a motor vehicle headlight
KR101295831B1 (en) * 2012-01-11 2013-08-12 주식회사 에스엘 서봉 A Lamp for vehicles
CN103672665B (en) * 2013-12-04 2016-05-18 奇瑞汽车股份有限公司 The anti-glare headlamp of a kind of vehicle
KR102392310B1 (en) * 2017-07-24 2022-05-02 현대모비스 주식회사 Illumination device foe vehicle

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Publication number Priority date Publication date Assignee Title
JP2005259473A (en) * 2004-03-10 2005-09-22 Koito Mfg Co Ltd Projection type vehicular head lamp

Family Cites Families (1)

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Publication number Priority date Publication date Assignee Title
JP2548801Y2 (en) * 1991-10-08 1997-09-24 株式会社小糸製作所 Projection type automotive headlamp

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005259473A (en) * 2004-03-10 2005-09-22 Koito Mfg Co Ltd Projection type vehicular head lamp

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