KR20160004084U - Lamp for vehicle - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lamp for a vehicle, and more particularly, to a lamp for a vehicle that can be illuminated with a plurality of light irradiation areas through a simple structure.
The vehicle lamp according to an embodiment of the present invention includes a light source unit, a heat radiation unit to which the light source unit is mounted, a shield unit that is mounted in front of the heat release unit and shields a part of light generated from the light source unit according to a beam pattern, And a lens unit for projecting the transmitted light to the outside, wherein the light source unit includes: a light source positioned away from the optical axis of the lens unit in one direction; and a plurality of light sources Of the reflector.

Description

Lamp for vehicle

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lamp for a vehicle, and more particularly, to a lamp for a vehicle that can be illuminated with a plurality of light irradiation areas through a simple structure.

Generally, the vehicle is provided with various lamps having a lighting function for easily confirming an object located in the vicinity of the vehicle at the time of night driving and a signal function for notifying other vehicles or road users of the running condition of the vehicle. It is stipulated by law as to the installation standards and specifications so that the functions are fully exercised.

For example, head lamps and fog lamps are mainly used for illumination purposes, and turn signal lamps, tail lamps, brake lamps, and side markers are mainly used for signals.

In addition, a room lamp, which is illuminated by interlocking with the opening of the door or usable for viewing a map or a book, is additionally provided inside the vehicle.

In such a vehicle lamp, light may be irradiated to two or more light-irradiated areas depending on the running environment of the vehicle or the surrounding environment. When light is irradiated to two or more light-irradiated areas, The structure is complicated and the cost is increased.

Therefore, there is a demand for a method of irradiating light to two or more light irradiation areas while simplifying the structure.

U.S. Published Patent Application No. US2004 / 0022807 (Apr. 21, 2014)

A problem to be solved by the present invention is to provide a vehicle lamp in which the structure can be simplified by allowing light generated from a light source through a plurality of reflectors to be irradiated to a plurality of light irradiation regions, respectively.

The tasks of the present invention are not limited to the tasks mentioned above,

According to an aspect of the present invention, there is provided a vehicular lamp including a light source, a heat dissipation unit to which the light source unit is mounted, a shield mounted on the front of the heat dissipation unit, for shielding a part of light generated from the light source unit according to a beam pattern, And a lens unit for projecting the light having passed through the shield unit to the outside, wherein the light source unit includes a light source, which is located apart from the optical axis of the lens unit in one direction, and a light source, And a plurality of reflectors for irradiating the plurality of reflectors.

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

According to the above vehicle lamp, one or more of the following effects can be obtained.

Since the light emitted from the light source by the plurality of reflectors is irradiated to each of the plurality of light irradiation areas, a structure for irradiating light to a plurality of light irradiation areas is not separately used, and the configuration can be simplified.

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 lamp for a vehicle according to an embodiment of the present invention;
2 is a side view showing a lamp for a vehicle according to an embodiment of the present invention;
3 is an exploded perspective view showing a lamp for a vehicle according to an embodiment of the present invention;
4 is a plan view showing a first reflector according to an embodiment of the present invention;
5 is a plan view showing a second reflector according to an embodiment of the present invention;
6 is a plan view showing a first reflector and a second reflector according to an embodiment of the present invention;
7 is a side view showing a first reflector and a second reflector according to an embodiment of the present invention;
8 is a plan view illustrating a heat dissipating unit according to an embodiment of the present invention.
Fig. 9 is a plan view showing a heat radiating portion equipped with a first reflector and a second reflector according to an embodiment of the present invention; Fig.
10 is a schematic view showing a light path when forming a low beam pattern according to an embodiment of the present invention;
11 is a schematic diagram illustrating a low beam pattern according to an embodiment of the present invention;
12 is a schematic view showing a light path when forming a high beam pattern according to an embodiment of the present invention;
13 is a schematic view showing a high beam pattern according to an 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 with reference to the embodiments described in detail below with reference to the accompanying drawings. It should be understood, however, that the present invention is not limited to the embodiments disclosed herein but may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, To the person having the invention, and this invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Thus, in some embodiments, well known process steps, well-known structures, and well-known techniques are not specifically described to avoid an undesirable interpretation of the present invention.

The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. It is to be understood that the terms comprise and / or comprise are used in a generic sense to refer to the presence or addition of one or more other elements, steps, operations and / or elements other than the stated elements, steps, operations and / It is used not to exclude. And "and / or" include each and any combination of one or more of the mentioned items.

In addition, 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. Accordingly, the embodiments of the present invention are not limited to the specific forms shown, but also include changes in form that are produced according to the manufacturing process. In the drawings, the constituent elements in the drawings may be somewhat enlarged or reduced in view of convenience of explanation. Like reference numerals refer to like elements throughout the specification.

Hereinafter, the present invention will be described with reference to the drawings for explaining a vehicle lamp according to embodiments of the present invention.

FIG. 1 is a perspective view showing a vehicle lamp according to an embodiment of the present invention, FIG. 2 is a side view showing a vehicle lamp according to an embodiment of the present invention, and FIG. Fig.

1 to 3, a vehicle lamp 1 according to an embodiment of the present invention may include a light source unit 100, a shield unit 200, a lens unit 300, and a heat dissipation unit 400.

In the embodiment of the present invention, the vehicle lamp 1 is used as a headlamp for securing a forward visibility when the vehicle travels at night or in a dark place such as a tunnel. However, The present invention is not limited to this, and the vehicle lamp 1 may be used for various lamps installed in a vehicle such as a tail lamp, a brake lamp, a turn signal lamp, a daytime running lamp, a position lamp,

The light source unit 100 may include a light source 110 and a plurality of reflectors 120 and 130.

The light source 110 may be configured to generate light having a light quantity or color suitable for the use of the vehicle lamp 1. In an embodiment of the present invention, when an LED is used as the light source 110 However, the light source 110 is not limited to LEDs, and various types of light sources such as a bulb may be used.

The light source 110 may be mounted on one side of the heat dissipation unit 400 because when the LED is used as the light source 110, the weakest one is the temperature, and when the light is generated by the light source 110, And the luminous efficiency of the LED is rapidly lowered due to a rise in temperature due to heat at a high temperature.

The plurality of reflectors 120 and 130 may function to irradiate light generated from the light source 110 to a plurality of regions, respectively. Hereinafter, in the embodiment of the present invention, the plurality of reflectors 120 and 130 are referred to as The first reflector 120 and the second reflector 130 will be referred to as a first reflector 120 and a second reflector 130, respectively.

In this embodiment, the number of the reflectors 120 and 130 is two, but the number of the reflectors may be changed according to the light irradiation area to which the light is irradiated. have.

The plurality of reflectors 120 and 130 may serve to reflect light generated from the light source 110 forward.

Reflecting the light forward by the plurality of reflectors 120 and 130 means that the light is reflected in the light irradiation direction of the vehicle lamp 1. The direction of the vehicle lamp 1 is changed depending on the direction, The meaning can be changed.

In the embodiment of the present invention, a plurality of reflectors 120 and 130 are disposed on the upper side of the light source 110 mounted on the upper surface of the heat dissipating unit 400, and the light generated in the upward direction from the light source 110 is reflected Reflection layers 121 and 131 having a high reflectance such as aluminum or chromium are formed on the inner surface of the reflective layer 121 so that the light generated from the light source 110 is reflected forward The positions of the plurality of reflectors 120 and 130 may vary depending on the light generation direction of the light source 110, the reflection direction of the light, and the like.

The reason that the plurality of reflectors 120 and 130 are positioned on the upper side of the light source 110 is not limited to the case where the entire plurality of reflectors 120 and 130 are located on the upper side of the light source 110, And may be located on the upper side.

FIG. 4 is a plan view showing a first reflector according to an embodiment of the present invention, FIG. 5 is a plan view showing a second reflector according to an embodiment of the present invention, and FIG. Fig. 7 is a side view showing a first reflector and a second reflector according to the embodiment of the present invention. Fig. 7 is a side view showing the first reflector and the second reflector according to the embodiment of the present invention.

Referring to FIGS. 4 to 7, the plurality of reflectors 120 and 130 may be vertically coupled so as to reflect light generated upward from the light source 110 forward.

The first reflector 120 is located on the upper side of the second reflector 130 and the first reflector 120 is provided with a plurality of fixing projections 132 and 133 formed on the second reflector 130 A plurality of fixing holes 122 and 123 into which the plurality of fixing protrusions 132 and 133 are inserted may be formed at the corresponding positions so that the positions of the fixing protrusions 122 and 123 can be aligned with each other.

In the embodiment of the present invention, a case where a plurality of fixing holes 122 and 123 are formed in the first reflector 120 and a plurality of fixing protrusions 132 and 133 are formed in the second reflector 130 However, the present invention is not limited thereto, and the opposite case is also possible.

In the embodiment of the present invention, the plurality of fixing holes 122, 123 are formed to have different sizes, which compensates for the tolerance generated in the manufacturing process of the first reflector 120 and the second reflector 130 And the assembly convenience is improved.

That is, when the plurality of fixing holes 122 and 123 are formed to have the same size and a tolerance is generated in at least one of the first reflector 120 and the second reflector 130, a plurality of fixing protrusions 132 and 133, Since the positions between the plurality of fixing holes 122 and 123 do not correspond to each other and normal assembly may be difficult, at least one of the plurality of fixing holes 122 and 123 is formed to have a large size, So that the assembly convenience can be improved.

The first reflector 120 and the second reflector 130 coupled to each other by the plurality of fixing holes 122 and 123 and the plurality of fixing protrusions 132 and 133 described above are provided with at least one first fastening hole 124 And at least one second fastening hole 134 are formed at positions corresponding to each other and can be mounted to the heat dissipating unit 400 similarly to the light source 110. [

FIG. 8 is a plan view showing a heat dissipating unit according to an embodiment of the present invention, and FIG. 9 is a plan view showing a heat dissipating unit mounted with a first reflector and a second reflector according to an embodiment of the present invention.

8 and 9, at least one first fastening hole 124 and at least one second fastening hole 134 may be formed in the first reflector 120 and the second reflector 130, respectively, The heat dissipation unit 400 includes at least one fastening hole 410 in which a fastening member (not shown) such as a screw having passed through at least one first fastening hole 124 and at least one second fastening hole 134 is inserted May be formed.

A plurality of alignment holes 125 and 126 for inserting a plurality of alignment protrusions 421 and 422 formed in the heat dissipation unit 400 may be formed in the first reflector 120 to align the mounting positions.

A case will be exemplified in which the plurality of alignment holes 125 and 126 are formed in the first reflector 120 and the plurality of alignment protrusions 421 and 422 are formed in the heat dissipation unit 400 However, the present invention is not limited to this, and vice versa.

The plurality of alignment holes 125 and 126 are formed to have different sizes similar to the plurality of fixing holes 122 and 123 so that when the first reflector 120 and the heat dissipation unit 400 are coupled It is possible to compensate the tolerance generated in the manufacturing process, thereby improving the assembling convenience.

In the embodiment of the present invention, the plurality of fixing holes 122 and 123 have larger fixing holes 122, and the plurality of alignment holes 125 and 126 have a plurality of fixing holes 122 and 123, The size of the alignment hole 126 on the other side is larger than the size of the alignment hole 126 on the other side. However, the present invention is not limited thereto.

3, at least one side of the first reflector 120 may have a latching groove 127 and at least one latching protrusion 430 inserted into the latching groove 127 May be formed and coupled.

In the embodiment of the present invention, the latching grooves 127 are formed on both sides of the front side of the first reflector 120. However, the present invention is not limited thereto and the positions of the latching grooves 127 may be variously changed And may be formed in the second reflector 130.

The first reflector 120 and the second reflector 130 may be configured to irradiate the first region and the second region with light. In an exemplary embodiment of the present invention, the first reflector 120 and the second reflector 130 may include a first region (Hereinafter, referred to as "beam pattern region") corresponding to the beam pattern to be formed as the second region, and the second reflector 130 allows the light to be irradiated to the high- ) Is irradiated with light is described as an example.

For example, when a low beam pattern is formed by a plurality of reflectors 120 and 130 as shown in FIGS. 10 and 11, the light L11 reflected by the first reflector 120 passes through the low beam pattern area P11 And the light L12 reflected by the second reflector 130 can be irradiated onto the high-illuminance region P12 of the low beam pattern.

11, the high contrast region P12 is located in the low beam pattern region P11. However, the present invention is not limited to this. For example, the high contrast region P12 may be formed in such a manner that a part of the high contrast region P12 is out of the low beam pattern region P11 It may be located.

In this embodiment, as described above, the light source 110 is spaced apart from the optical axis Ax in one direction, for example, as shown in FIG. 11. The reflectors 120 And 130 are arranged such that light generated from the light source 110 is irradiated to the first area and the second area, respectively.

1 to 3, the shield unit 200 selectively blocks a part of light generated from the light source unit 100 according to a beam pattern to be formed, thereby performing conversion between different beam patterns can do.

The shield portion 200 may be mounted in front of the heat dissipation portion 400. The shield portion 200 may include a fixed shield 210 fixedly installed in the first shielding region and a fixed shield 210 fixedly installed in the first shielding region, And a driving unit 230 for changing the position of the moving shield 220 and the moving shield 220.

In the embodiment of the present invention, the second shielding region means a central region of the shield portion 200, and the first shielding region means both side regions of the central region of the shield portion 200 However, the first blocking region and the second blocking region may vary depending on the beam pattern to be formed.

The shield portion 200 forms a low beam pattern when the second shielding region is shielded by the moving shield 220, and when the position of the moving shield 220 is changed to open the second shielding region, the high beam pattern .

In the embodiment of the present invention, the case where the movable shield 220 is rotated forward to open the second blocking region and shields the second blocking region when returning to the original position will be described as an example. The movable shield 220 can be rotated so that the second shielding region can be opened or closed by not only turning but also linear motion or translational movement, etc. Specifically, when the second shielding region is shielded, The light incident on the shielding surfaces 210a and 220a of the shield 220 is blocked to form the low beam pattern region P11 and the high illuminance region P12 as shown in FIG. When the second blocking region is opened by rotating forward of the heat dissipation unit 400, the light L21 reflected by the first and second reflectors 120 and 120 forms the high beam pattern region P21, The light reflected by the second reflector 130 L22 can form a high-intensity region P22 of the high beam pattern.

13, a case where a part of the high-luminance area P22 is located out of the high beam pattern P21 is described as an example. However, the present invention is not limited to this, and the high luminance area P22 may be formed within the high beam pattern area P21 It may be located.

The blocking surfaces 210a and 220a of the fixed shield 210 and the moving shield 220 may be formed so that at least portions thereof have different heights so as to form a cutoff line of the beam pattern. In the embodiment, a case where the cut-off surface 220a of the movable shield 220 is formed to have a step to form a cut-off line will be described as an example.

A reflective layer (not shown) is formed on at least one of the blocking surfaces 210a and 220a of the fixed shield 210 and the moving shield 220 to reflect the blocked light to the lens 310, Can be improved.

A reflective layer (not shown) is formed on each of the blocking surfaces 210a and 220a of the fixed shield 210 and the moving shield 220 and the fixed shield 210 and the movable shield 210 are moved in accordance with the beam pattern to be formed. The light reflected by at least one of the reflection layers (not shown) is incident on the blocking surfaces 210a and 220a of the shield 220 on the upper side of the lens 310 to improve the light use efficiency and near vision I will explain it.

The shield portion 200 may include an extension 211 extending in one direction of the fixed shield 210. The shield 210 may include at least one coupling hole 211a formed in the extension 211, The fixing shield 210 may be fixed to the heat dissipating unit 400 by inserting a coupling member (not shown) into the coupling groove 440 formed at the front of the heat dissipating unit 400.

The driving unit 230 may be coupled with the moving shield 220 to change the position of the moving shield 220. The moving shield 220 may include insertion holes 221a and 221b into which the driving shaft 231 of the driving unit 230 is inserted, 222a may be formed and the position may be varied when the driving unit 230 is driven.

In the embodiment of the present invention, a through hole (not shown) through which an engaging member (not shown) passing through at least one engaging hole 211a formed in the extended portion 211 of the shield portion 200 passes, And the driving unit 230 is fixed to the heat dissipating unit 400 together with the fixed shield 210. The present invention is not limited thereto and the fixing shield 210 and the driving unit 230 May be fixed to the heat dissipating unit 400 separately.

The lens unit 300 may project light passing through the shield unit 200 to the outside and the lens unit 300 may include a lens 310 and a lens holder 320.

Various types of lenses may be used for the lens 310 according to the required lens characteristics. For example, as the lens 310, an aspherical lens may be used to realize various lens characteristics.

The lens holder 320 can support the lens 310 and can be coupled to the heat dissipating unit 400 to form a space in which the components such as the shield unit 200 can be positioned.

The heat dissipating unit 400 is assembled with the light source unit 100, the shield unit 200 and the lens unit 300 and is assembled with respect to the case where the light source unit 100, the shield unit 200 and the lens unit 300 are respectively installed. The convenience can be improved and the generated heat can be rapidly released so that the temperature rise due to heat can be prevented.

In addition, in the embodiment of the present invention, various cooling devices such as a cooling fan 450 and the like may be used together with the heat dissipation unit 400 to improve the heat dissipation efficiency.

Those skilled in the art will appreciate 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 scope of the utility model registration request described below rather than the detailed description, and all modifications or variations derived from the meaning and scope of the claim scope of utility model registration claims and their equivalents are within the scope of the present invention Should be interpreted as being included in.

100: light source 110: light source
120: first reflector 130: second reflector
200: shield part 210: fixed shield
220: moving shield 230: driving part
300: lens unit 310: lens
320: lens holder 400:

Claims (9)

A light source;
A heat dissipation unit to which the light source unit is mounted;
A shield portion mounted in front of the heat dissipating portion and shielding a part of light generated from the light source portion according to a beam pattern; And
And a lens unit for projecting the light having passed through the shield unit to the outside,
The light source unit includes:
A light source positioned apart from the optical axis of the lens unit in one direction;
A first reflector for allowing light emitted from the light source to be irradiated to the first light irradiation region; And
And a second reflector coupled with the first reflector in a vertical direction and causing the light generated from the light source to be irradiated to the second light irradiation area. The method according to claim 1,
The light source includes:
And is located apart from the optical axis in a downward direction. The method according to claim 1,
Wherein one of the first reflector and the second reflector has a plurality of fixing holes and the other has a plurality of fixing protrusions inserted into the plurality of fixing holes. The method of claim 3,
Wherein the plurality of fixing holes
Vehicle lamps of different sizes. The method according to claim 1,
Wherein the first reflector comprises:
At least one first fastening hole,
Wherein the second reflector
And at least one second fastening hole formed at a position corresponding to the at least one first fastening hole,
The heat-
And at least one fastening groove into which a fastening member having passed through the at least one first fastening hole and the at least one second fastening hole is inserted. The method according to claim 1,
Wherein a plurality of alignment holes are formed in any one of the first reflector and the heat dissipation unit and a plurality of alignment protrusions are formed in the other one of the alignment holes. The method according to claim 6,
Wherein the plurality of alignment holes
Vehicle lamps of different sizes. The method according to claim 1,
Wherein at least one of the first reflector and the heat dissipating unit is formed with at least one engagement groove and the other of the first and second reflectors has a latching protrusion inserted into the at least one engagement groove. The method according to claim 1,
Wherein the first light irradiation region is a light-
The beam pattern region,
The second light irradiation region is a region
Wherein the high intensity region of the beam pattern.

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