KR101829008B1 - Head lamp apparatus - Google Patents

Head lamp apparatus Download PDF

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Publication number
KR101829008B1
KR101829008B1 KR1020150141730A KR20150141730A KR101829008B1 KR 101829008 B1 KR101829008 B1 KR 101829008B1 KR 1020150141730 A KR1020150141730 A KR 1020150141730A KR 20150141730 A KR20150141730 A KR 20150141730A KR 101829008 B1 KR101829008 B1 KR 101829008B1
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KR
South Korea
Prior art keywords
shield
unit
drive unit
steering angle
coupled
Prior art date
Application number
KR1020150141730A
Other languages
Korean (ko)
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KR20170042146A (en
Inventor
민영기
Original Assignee
현대모비스 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대모비스 주식회사 filed Critical 현대모비스 주식회사
Priority to KR1020150141730A priority Critical patent/KR101829008B1/en
Publication of KR20170042146A publication Critical patent/KR20170042146A/en
Application granted granted Critical
Publication of KR101829008B1 publication Critical patent/KR101829008B1/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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/08—Controlling the distribution of the light emitted by adjustment of elements by movement of the screens or filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/0004—Personal or domestic articles
    • F21V33/0052—Audio or video equipment, e.g. televisions, telephones, cameras or computers; Remote control devices therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes

Abstract

There is provided a headlamp apparatus capable of not only rotating but also moving left and right.
To this end, the headlamp apparatus according to the embodiment of the present invention includes a shield unit in which a plurality of shields for shielding a part of light distributed to the outside of the automobile in respective patterns are disposed, and a shield unit coupled to the shield unit, And a second drive unit coupled to the shield unit and linearly moving the shield unit in the axial direction.

Description

HEAD LAMP APPARATUS [0001]

The present invention relates to a headlamp apparatus, and more particularly, to a headlamp apparatus installed in front of an automobile.

In general, a headlamp device is installed in front of the automobile to secure a watch by illuminating the front side in a dark place such as a nighttime running or a tunnel.

The headlamp apparatus includes a light source that generates light, a reflector that reflects the light generated by the light source, and a lens that is disposed in front of the light source and the reflector and that distributes the light reflected by the reflector forward do. Further, a shield unit may be further provided between the reflector and the lens.

The shield unit is provided with a plurality of shields which shield the light reflected by the lens by the reflector in respective patterns. The shield unit is rotated by the driving force of the step motor to move one of the plurality of shields to a light shutoff position. When the plurality of shields are respectively moved to the light cutoff position, the reflector blocks a part of the light reflected by the lens in a predetermined pattern so that the light to be distributed to the outside of the automobile becomes a predetermined pattern . The predetermined pattern includes a high beam pattern and a low beam pattern. The high beam pattern illuminates the front upper side of the vehicle outside the low beam pattern, and the low beam pattern illuminates the front lower side of the vehicle outside the high beam pattern.

In recent years, an adaptive head lamp device is installed in the automobile in such a manner that it is rotated right and left according to the angle of rotation of the steering wheel, thereby illuminating the light in advance in the running direction of the automobile so that the driver can secure the clock in advance.

However, since the conventional adaptive headlamp apparatus is a system in which the entire module including the light source, the reflector, and the lens is rotated, a large amount of components for rotating the module is required, and the weight is increased. There is a problem that is raised.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a headlamp apparatus capable of realizing the function of the adaptive headlamp apparatus by enabling the shield unit to be rotated as well as to the left and right.

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 apparatus comprising: a shield unit having a plurality of shields for shielding a part of light radiated to the outside of a vehicle in respective patterns; And a second drive unit coupled to the shield unit and linearly moving the shield unit in the axial direction. The first drive unit rotates the shield unit in the circumferential direction.

The details of other embodiments are included in the detailed description and drawings.

The headlamp apparatus according to the embodiment of the present invention not only can form a high beam pattern and a low beam pattern by rotating the shield unit but also moves the shield unit linearly in the axial direction in accordance with the steering angle of the steering wheel, There is an effect that the light can be projected in advance.

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

1 is a perspective view showing a headlamp apparatus according to a first embodiment of the present invention,
2 is a front view showing a shield unit, a first drive unit and a second drive unit of the headlamp apparatus according to the first embodiment of the present invention,
3 is a control block diagram of a headlamp apparatus according to the first embodiment of the present invention.
4 is a perspective view showing a shield unit, a first drive unit and a second drive unit of a headlamp apparatus according to a second embodiment of the present invention,
Fig. 5 is a side view of Fig. 4,
6 is a control block diagram of a headlamp apparatus according to a second embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being 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 concept of the invention to those skilled in the art. Is provided to fully convey 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.

Hereinafter, a headlamp apparatus according to embodiments of the present invention will be described with reference to the drawings.

1 is a perspective view showing a headlamp apparatus according to a first embodiment of the present invention.

Referring to Fig. 1, the headlamp apparatus according to the first embodiment of the present invention includes a shield unit 10 and a first drive unit 20 for rotating the shield unit 10. As shown in Fig.

Here, the shield unit 10 is rotatably disposed in the headlamp apparatus and includes a plurality of shields (not shown) for shielding a part of the light in respective patterns so that light to be distributed to the outside of the vehicle may have a predetermined pattern 15 are arranged along the circumference. The shield unit 10 is rotated or reversed by the driving force of the first drive unit 20 so that the plurality of shields 15 are respectively moved to the light shutoff position.

On the upper surface of each of the plurality of shields 15, a cutoff pattern for blocking a part of the light reflected from the reflector (not shown) in a predetermined pattern is formed. Different cut-off patterns are formed on the respective shields 15 so as to form various beam patterns. Here, the reflector reflects light of a light source (not shown) to the lens 1 and may be disposed inside the housing 3 from behind the shield unit 10, and the light source is provided as an LED lamp And may be disposed inside the reflector among the inside of the housing 3. [

The shield unit 10 is rotatably disposed in the housing 3 so that a part of the light reflected from the reflector can be shielded by each pattern by moving the plurality of shields 15 to the light cutoff position.

The first drive unit 20 is also disposed within the housing 3 so that the shield unit 10 is rotated bidirectionally (forward or reverse) so that each of the plurality of shields 15 can be moved to the light interruption position.

The lens 1 is provided with an aspherical lens through which light is transmitted so that light reflected from the reflector can be radiated to the front of the automobile and is coupled to the front end of the housing 3 through the lens holder 2.

By controlling the rotation direction and the rotation angle of the shield unit 10, one of the plurality of shields 15 is moved to the light interruption position, and the pattern of light to be distributed to the outside of the automobile can be varied.

The detailed configuration of the first drive unit 20 will be described with reference to Fig. On the other hand, in the headlamp apparatus according to the first embodiment of the present invention, the shield unit 10 is rotated in the circumferential direction by the first drive unit 20 so that one of the plurality of shields 15 The shield unit 10 is linearly moved in the axial direction by the second drive unit 30 to be described later so that one of the plurality of shields 15 is moved to the light cut position.

2 is a front view showing a shield unit, a first drive unit and a second drive unit of the headlamp apparatus according to the first embodiment of the present invention.

1 and 2, the shield unit 10 includes a shield portion 12 on which a plurality of shields 15 are disposed, a first shaft 14 protruding from one end in the axial direction of the shield portion 12, And a second shaft 16 protruding from the other end in the axial direction of the shield portion 12. A first drive unit (20) is coupled to the first shaft (14). The second shaft 16 is rotatably coupled to the housing 3 so that the shield unit 10 can be rotatably disposed in the housing 3. [

A plurality of shields (15) disposed in the shield portion (12) include a low beam shield (15a) and a high beam shield (15b). The shield portion 12 is formed in a cylindrical shape and the low beam shield 15a and the high beam shield 15b are formed in the shield portion 12 in a radial direction. A plurality of shields 15 may be disposed between the low beam shield 15a and the high beam shield 15b 2 in the present embodiment, But is not limited to dogs.

The low beam shield 15a is formed over the entire axial length of the shield portion 12a and the high beam shield 15b is formed in the axial direction from one end of the shield portion 12 and the length of the low beam shield 15a is longer than the length of the low beam shield 15a Respectively. In the present embodiment, the axial length of the high beam shield 15b is formed to be approximately half of the axial length of the low beam shield 15a.

The low beam shield 15a shields a part of the light reflected by the reflector so as to distribute light to the front lower side of the automobile as compared with the high beam shield 15b and the high beam shield 15b shields a part of the light reflected by the reflector So that the light is directed to the upper side of the front side of the automobile relative to the low beam shield 15a.

On the upper side of the low beam shield 15a, a cut-off pattern 15c of an L shape in the left and right is formed. Therefore, when a part of the light reflected by the reflector is blocked by the low beam shield 15a, the light that is emitted to the front of the automobile and formed on the road surface becomes a L-shaped pattern with the front end thereof being left-right.

The high beam shield 15b is shorter in axial length than the low beam shield 15a and protrudes beyond the flat surface of the low beam shield 15a. Therefore, when the high beam shield 15b blocks a part of the light reflected by the reflector, the flat surface of the low beam shield 15a is positioned lower than the high beam shield 15b on the left side of the high beam shield 15b . Therefore, when the high beam shield 15b blocks a part of the light reflected by the reflector, the upper side left-right shape from the flat surface of the low beam shield 15a to the high beam shield 15b becomes L-shaped. Therefore, when a part of the light reflected by the reflector is blocked by the high beam shield 15b, the light emitted to the front of the automobile and formed on the road surface becomes a L-shaped pattern with the front end being left-right.

As described above, when the front end of the light on the road surface becomes an L-shaped pattern on the left and right, it is possible to radiate light far away in the traveling direction of the automobile so that it is possible to maximize visibility to the driver of the own vehicle But it does not cause the driver of the oncoming vehicle to glare because the light is reflected toward the opposite vehicle.

Further, a shield gear tooth 32 is formed in the shield portion 12. The shield gear teeth 32 are linearly moved in the axial direction of the shield unit 10 by the second drive unit 30 to be described later so that the shield unit 10 can be linearly moved in the axial direction.

The shield gear teeth 32 are formed on the outer circumferential surface of the shield portion 22 so as to be spaced apart from each other along the axial direction of the shield unit 10. The shield gear teeth 32 perform functions similar to those of the rack in a conventional rack & pinion gear combination structure.

The shield gear teeth 32 are formed only in a part of the circumference of the shield portion 22 in the circumferential direction.

The first drive unit 20 includes a driven gear 22, a drive gear 24, and a first motor 26.

The driven gear 22 is disposed so as to be coupled to the center of the first shaft 14 of the shield unit 10 and rotated in the circumferential direction of the shield unit 10. [ The drive gear 24 is disposed in engagement with the driven gear 22 and rotated in the opposite direction to the driven gear 22. The first motor 26 is formed by a step motor and rotates the driving gear 24. The rotating shaft 26a of the first motor 26 is coupled to the center of the driving gear 24. [

When the first motor 26 is driven to rotate the rotary shaft 26a, the drive gear 24 and the driven gear 22 are simultaneously rotated together with the rotary shaft 26a so that the shield unit 10 is rotated in the circumferential direction .

The second drive unit 30 includes a pinion 34 and a second motor 36.

The pinion 34 is engaged with the shield gear teeth 32. [ Therefore, when the pinion 34 is rotated, the shield unit 10 can be linearly moved in the axial direction. The second motor 36 is formed by a step motor and rotates the pinion 34. The rotation axis 36a of the second motor 36 is coupled to the center of the pinion 34. [

When the second motor 36 is driven to rotate the rotary shaft 36a, the pinion 34 is simultaneously rotated together with the rotary shaft 36a. However, since the shield gear teeth 32 are engaged with the pinion 34, the shield unit 10 is linearly moved in the axial direction.

The drive gear 24 and the pinion 34 are disposed so that their rotational directions are orthogonal to each other so that both the rotation and the linear movement of the shield unit 10 are made possible.

3 is a control block diagram of a headlamp apparatus according to the first embodiment of the present invention.

Referring to FIG. 3, the headlamp apparatus according to the first embodiment of the present invention includes a camera sensor 4 for photographing an image of the front of the automobile, a steering angle sensor 5 for sensing a steering angle of the steering wheel, And a controller 6 for driving the first motor 26 according to the image captured by the camera sensor 6 and for driving the second motor 36 according to the steering angle sensed by the steering angle sensor 5 do.

The controller 30 processes the image signal photographed by the camera sensor 40 to calculate the distance and angle between the vehicle traveling ahead (a preceding person and an opposite vehicle) and the vehicle traveling ahead, One of the high beam shield 15b and the low beam shield 15a is moved to the light interruption position by controlling the rotation direction and the rotation angle of the motor 26 so that the pattern of light to be distributed to the outside of the vehicle So that the driver of the vehicle running on the front side becomes a pattern that does not cause glare. That is, the shield unit 10 is rotated by the first motor 26 driven in accordance with the image taken by the camera sensor 4, so that light, which is radiated to the front of the automobile, .

The shield unit 10 is linearly moved left and right by the second motor 36 driven by the steering angle of the steering wheel detected by the steering angle sensor 5 so that light can be projected in advance in the traveling direction of the vehicle .

FIG. 4 is a perspective view showing a shield unit, a first drive unit and a second drive unit of a headlamp apparatus according to a second embodiment of the present invention, and FIG. 5 is a side view of FIG. Here, the same reference numerals are given to the same components as those of the first embodiment, and a detailed description thereof will be omitted, and only different points will be described.

Referring to FIGS. 4 and 5, the headlamp apparatus according to the second embodiment of the present invention differs from the first embodiment described above. That is, in the headlamp apparatus according to the second embodiment of the present invention, the first drive unit 20 of the first embodiment described above is replaced with the first drive unit 200.

The first drive unit 200 includes a drive plate 220, a solenoid shaft 240, and a solenoid 260.

The drive plate 220 is coupled to the first shaft 14 of the shield unit 10 and a sliding hole 225 is formed in the axial direction of the shield unit 10. The sliding hole 225 is elongated in the axial direction of the shield unit 10 so that the shield unit 10 is not disturbed when it is linearly moved in the axial direction by the second drive unit 30.

The solenoid shaft 240 is inserted into the sliding hole 225 and is coupled to the driving plate 220 in the radial direction of the shield unit 10. The solenoid shaft 240 protrudes from the solenoid 260 or is arranged to be inserted into the solenoid 260 so that the solenoid shaft 240 moves only in the radial direction of the shield unit 10 and does not move in the axial direction of the shield unit 10. [

When the shield unit 10 is linearly moved in the axial direction by the second drive unit 30, the drive plate 220 is also moved in the axial direction together with the shield unit 10. At this time, the solenoid shaft 240 Since the drive plate 220 is inserted into the sliding hole 225 formed in the drive plate 220, the drive plate 220 is moved in the axial direction Lt; / RTI >

The solenoid 260 may be electrically operated to pull or push the solenoid shaft 240 to rotate the shield unit 10 in the circumferential direction.

6 is a control block diagram of a headlamp apparatus according to a second embodiment of the present invention.

6, in the first embodiment described above, the controller 6 drives the first motor 26 according to the image taken by the camera sensor 4. However, in the second embodiment, And drives the solenoid 260 according to the image captured by the camera sensor 4. [ The controller 6 drives the second motor 36 in accordance with the steering angle sensed by the steering angle sensor 5, as in the first embodiment.

As described above, in the headlamp apparatus according to the embodiment of the present invention, not only the high beam pattern and the low beam pattern can be formed by rotating the shield unit 10, but also the shield unit 10 can be mounted on the steering wheel The light can be linearly moved in the axial direction according to the steering angle so that the light can be emitted in advance in the running direction of the automobile.

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 and non-restrictive in every respect. The scope of the present invention is defined by the appended claims rather than the foregoing detailed description, and all changes or modifications derived from the meaning and scope of the claims and the equivalents thereof are included in the scope of the present invention Should be interpreted.

10: shield unit 12: shield part
14: first shaft 15: shield
16: second shaft 20, 200: first drive unit
22: driven gear 24: drive gear
26: first motor 30: second drive unit
32: Shield gear teeth 34: Pinion
36: second motor 220: drive plate
225: Sliding hole 240: Solenoid axis
260: Solenoid

Claims (9)

A shield unit in which a plurality of shields for shielding a part of light distributed to the outside of the vehicle by respective patterns are disposed;
A first drive unit coupled to the shield unit and rotating the shield unit in the circumferential direction; And
And a second drive unit coupled to the shield unit for linearly moving the shield unit in the axial direction,
The shield unit includes:
A shield portion in which the plurality of shields are disposed and in which a shield gear tooth to which the second drive unit is coupled is formed on an outer circumferential surface,
And a shaft protruding from one end in the axial direction of the shield portion and coupled with the first drive unit. delete The method according to claim 1,
The first drive unit includes:
A driven gear coupled to the shaft and rotated in the circumferential direction of the shield unit,
A drive gear engaged with the driven gear,
And a first motor for rotating the drive gear. The method of claim 3,
The second drive unit includes:
A pinion meshing with the shield gear teeth,
And a second motor for rotating the pinion. The method of claim 4,
Wherein the driving gear and the pinion are orthogonal to each other in the rotational direction. The method of claim 4,
A camera sensor for photographing an image of the front of the automobile,
A steering angle sensor for sensing a steering angle of the steering wheel,
And a controller for driving the first motor according to the image captured by the camera sensor and driving the second motor according to the steering angle sensed by the steering angle sensor. The method according to claim 1,
The first drive unit includes:
A drive plate coupled to the shaft and having a sliding hole formed in an axial direction of the shield unit,
A solenoid shaft inserted into the sliding hole and coupled to the driving plate in a radial direction of the shield unit,
And a solenoid for pulling or pushing said solenoid shaft. The method of claim 7,
The second drive unit includes:
A pinion meshing with the shield gear teeth,
And a second motor for rotating the pinion. The method of claim 8,
A camera sensor for photographing an image of the front of the automobile,
A steering angle sensor for sensing a steering angle of the steering wheel,
And a controller for driving the solenoid according to the image captured by the camera sensor and driving the second motor according to the steering angle sensed by the steering angle sensor.
KR1020150141730A 2015-10-08 2015-10-08 Head lamp apparatus KR101829008B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150141730A KR101829008B1 (en) 2015-10-08 2015-10-08 Head lamp apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150141730A KR101829008B1 (en) 2015-10-08 2015-10-08 Head lamp apparatus

Publications (2)

Publication Number Publication Date
KR20170042146A KR20170042146A (en) 2017-04-18
KR101829008B1 true KR101829008B1 (en) 2018-02-13

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001325815A (en) 2000-05-15 2001-11-22 Koito Mfg Co Ltd Headlight for vehicle
JP4030658B2 (en) 1998-06-30 2008-01-09 株式会社小糸製作所 Railway vehicle lamp
JP2010086863A (en) * 2008-10-01 2010-04-15 Koito Mfg Co Ltd Vehicular headlight device
JP2013114770A (en) * 2011-11-25 2013-06-10 Koito Mfg Co Ltd Vehicular headlight device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4030658B2 (en) 1998-06-30 2008-01-09 株式会社小糸製作所 Railway vehicle lamp
JP2001325815A (en) 2000-05-15 2001-11-22 Koito Mfg Co Ltd Headlight for vehicle
JP2010086863A (en) * 2008-10-01 2010-04-15 Koito Mfg Co Ltd Vehicular headlight device
JP2013114770A (en) * 2011-11-25 2013-06-10 Koito Mfg Co Ltd Vehicular headlight device

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