KR20180031654A - LED headlamp for the motorcycle - Google Patents

Abstract

The present invention relates to an LED headlamp assembly for transport equipment. More specifically, the present invention relates to an LED headlamp assembly for transport equipment which uses an LED as a light source, has a small size, satisfies an European motorcycle light distribution reference (ECE R113 D standard), and has excellent brightness. The LED headlamp assembly for transport equipment comprises: a support hole; an upper reflector; and a lower reflector.

Description

LED headlamp for the motorcycle < RTI ID = 0.0 >

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an LED headlamp assembly for a transporting machine, and more particularly, to an LED headlamp assembly for a transporting machine, which uses an LED as a light source and has a small size and excellent luminous efficiency satisfying a European transportation equipment (motorcycle) light distribution standard (ECE R113 D standard) .

Vehicles such as automobiles and motorcycles are equipped with headlights so that the headlights can illuminate forward at night, allowing the driver to operate safely.

In general, a headlamp for a transportation machine is classified into a first-order and a second-order type. A first-type headlamp is a light source having both a downward light function and an upward light function. The second light source has two light sources, Structure.

Generally, when driving at night, the upright light can easily identify distant objects, but it interferes with the visibility of the opposite driver or the pedestrian. Therefore, when driving on a road with frequent traffic, the driver operates in a downward light mode.

That is, the downward light is configured to downwardly shine light based on a certain reference line (cutoff line) so as to prevent the glare of the opposed driver or the pedestrian. In such a downward light mode, It is inconvenient to check the contents of the signboard by operating the upward light when checking the contents of the road sign at a high position during the driving because the difficulty and the downward light are not reflected in the direction of the road sign.

Literature 1. Korea Intellectual Property Office Registration No. 10-1410878, "Automobile Headlight" Document 2: Korean Patent Registration No. 10-1233340, "Vehicle Headlamp and Method for Manufacturing the Same"

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an apparatus and method capable of quickly determining whether there is a danger of a distant object in a downward light mode, It is an object of the present invention to provide an LED headlight assembly for a transport vehicle that can confirm the contents of a road sign in a high position.

It is also an object of the present invention to provide an LED headlight assembly for a transport vehicle that is small in size and meets the European transport light distribution standard (ECE R113 D standard).

CLAIMS 1. An LED headlight assembly for a transport machine, comprising a light source and a reflector, the LED headlight assembly comprising: a support having a top package mounted on a top surface and a bottom package mounted on a bottom surface; An upper reflector which reflects the light emitted from the upper package and upwardly distributes light from the cut-off line to form an upper light distribution pattern, the reflector pieces formed by a predetermined number of slopes and aspherical curvature are successively joined to each other; A reflector piece formed by a predetermined number of slopes and an aspherical curvature are successively joined to each other, and a lower reflector is disposed at a lower portion of the support to reflect the light emitted from the lower package and down- One of the reflector pieces constituting the downward light distribution pattern is configured to form a signal beam illuminating a road sign even in a downward light distribution pattern by upwardly distributing the light irradiated from the lower package from the cutoff line .

At this time, it is preferable that one of the reflector pieces of the lower reflector forming the signal beam is configured to distribute the light irradiated from the lower package upward from the cutoff line at the center position of the downward light distribution pattern.

It is preferable that the upper reflector or the lower reflector is formed by integrally molding a plurality of reflector pieces formed by a predetermined number of different slopes and aspherical curvatures.

It is also preferable that the optical axis of the upper package is opposed to the upper reflector direction and the optical axis of the lower package is opposed to the lower reflector direction.

It is preferable that any one or more of the reflector pieces constituting the upper and lower reflectors are arranged so as to overlap the central area of the light distribution pattern so as to improve the central area luminous intensity of the light distribution pattern.

It is preferable to further comprise a cooling means for cooling the upper and lower packages.

The LED headlight assembly of the present invention having the above-described structure is excellent in luminous intensity, so that it is possible to promptly determine whether there is a danger of an object far away in a downward light mode when the vehicle is traveling at night, So that the contents of the road sign at a higher position can be confirmed without turning on the upward light.

In addition, it is possible to create a condition to export the headlight to Europe by meeting the European light distribution standard (ECE R113 D standard) with a small size.

1 is a sectional view showing a headlamp assembly according to the present invention;
2 is a perspective view showing a reflector of a headlight assembly;
3 is a front view showing the reflector of the headlight assembly;
4 is a view showing a light path of a headlight assembly;
Figs. 5 to 14 are diagrams showing a light distribution pattern of each reflector piece of the lower reflector
15 is a view showing a down light distribution pattern by the lower reflector;
16 to 25 show the light distribution patterns of the respective reflector pieces of the upper reflector.
26 is a view showing an upward light distribution pattern by the upper reflector;
27 is a cross-sectional view showing a piping in which a cooling fluid flows in upper and lower packages;
28 is a cross-sectional view showing the PCB substrate structure of the upper and lower packages;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, the present invention will be described in detail with reference to preferred embodiments of the present invention and the accompanying drawings, wherein like reference numerals refer to like elements.

It is to be understood that when an element is referred to as being "comprising" another element in the description of the invention or in the claims, it is not to be construed as being limited to only that element, And the like.

The headlamp assembly 100 according to the present invention is, as shown in FIG. An upper package 115 and a lower package 116 are respectively formed as light sources on the plate-shaped support 114 and the lower plate 114, respectively. The upper and lower packages 115 and 116 use LEDs having low power consumption and excellent brightness.

A reflector 110 having a C-shaped cross section is installed on one side of the support 114 to reflect the light emitted from the upper package 115 and the lower package 116 and to distribute the light.

The upper package 115, the lower package 116, the support 114 and the reflector 10 are housed inside the housing 101 and protected by fastening the front transparent cover 102.

As described above, a plate-shaped support 114 is formed inside the reflector 110, and an upper package 115 and a lower package 116 are installed on upper and lower surfaces of the support 114, respectively. 1, the upper package 115 is installed so as to be inclined at a predetermined angle? In the direction of the reflector 110 from the optical axis, and the lower package 116 is installed so as to be inclined at a predetermined angle? In the direction of the reflector 110 from the optical axis. It is preferable that the upper package 115 and the lower package 116 irradiate light in the direction of the reflector 110.

The inclined angles? And? Of the upper and lower packages 115 and 116 are determined according to the shape of the reflector 110 and the overall curvature, and thus are not limited to specific values.

2 and 3, the reflector 110 includes an upper reflector 111 positioned above the support 114 with respect to the support 114, a lower reflector 112 located below the support 114, ).

4, the upper reflector 111 reflects light irradiated from the upper package 115 installed on the upper portion of the support 114 and distributes the light to the upward light. The lower reflector 112 reflects the light emitted from the lower portion Reflects the light irradiated from the package 116 and distributes the light to a downward direction or the like.

The support 114 supports and fixes the upper package 115 and the lower package 116 as well as the light irradiated from the upper package 115 is reflected by the upper reflector 111 and is incident on the lower reflector 112, And serves as a shield for shielding light irradiated from the lower package 116 from being reflected by the lower reflector 112 and being incident on the upper reflector 111.

The upper reflector 111 and the lower reflector 112 are formed by connecting a predetermined number of reflector pieces 113. The upper reflector 111 and the lower reflector 112 are connected to the upper reflector 111 and the lower reflector 112, And the reflector pieces 113 having four consecutive in the horizontal direction are stacked in two rows in the vertical direction.

Each of the reflector pieces 113 constituting the upper reflector 111 and the lower reflector 112 is formed into an aspherical reflector having different curvatures so that light emitted from the upper package 115 and the lower package 116 And the light distribution pattern is obtained by distributing light at different angles and directions to complete the predetermined light distribution pattern.

3, the first reflector piece 113 on the lower line of the lower reflector 112 is defined as (H1, V1), and the other reflector pieces 113 are arranged on the basis of (H1, V1) ).

Here, H denotes Horizontal, V denotes Vertical, and n denotes the order of the right side and the upward side with respect to the reflector piece 113 as (H1, V1).

3, (H1, V1) to (H4, V2) are the reflector pieces 113 constituting the lower reflector 112, and (H1, V3) to H4, V4 constitute the upper reflector 111 Reflector pieces 113 are the reflector pieces.

As described above, the lower reflector 112 reflects the light emitted from the lower package 116 fastened to the lower portion of the support 114 and distributes the light to the downward light of the headlight. In the lower reflector 112, The light distribution patterns of the pieces 113 are different from each other, and the light distribution patterns are combined to complete the light distribution pattern satisfying the downward light standard.

5A, the reflector piece 113 of the lower reflector 112 (H1, V1) constituting the lower reflector 112 reflects the light irradiated from the lower package 116 and distributes the light as shown in FIG. And the reflector piece 113 (H2, V1) constituting the lower reflector 112 as shown in Fig. 6 (a) reflects the light irradiated from the lower package 116 A light distribution pattern shape such as a downward direction is set by the light distribution as shown in FIG. 6 (b).

7A, the reflector piece 113 (H3, V1) constituting the lower reflector 112 reflects the light irradiated from the lower package 116 to be light-guided as shown in FIG. 7B 8 (a), the reflector piece 113 of the lower reflector 112 (H4, V1) constituting the lower reflector 112 reflects the light irradiated from the lower package 116, ), Thereby setting a light distribution pattern shape such as a downward direction.

9 (a), the light distribution pattern as shown in FIG. 9 (b) is formed by combining the other light distribution patterns of the reflector pieces H1, V1 to H4 and V1, The light distribution pattern of the light distribution pattern is set.

10 (a), the reflector piece 113 of the lower reflector 112 constituting the lower reflector 112 reflects the light irradiated from the lower package 116 and is then distributed as shown in FIG. 10 (b) And the luminous intensity of the overall light distribution such as the downward direction is improved.

The reflector piece 113 of the lower reflector 112 constituting the lower reflector 112 reflects the light irradiated from the lower package 116 as shown in FIG. 11 (a) (H3, V2) constituting the lower reflector 112 as shown in FIG. 12 (a), the light reflected from the lower package 116 A signal beam is formed so as to illuminate a high-level road sign in a downward light state so as to be visually confirmed.

13A, the reflector piece 113 of the lower reflector 112 (H4, V2) constituting the lower reflector 112 reflects the light irradiated from the lower package 116 and distributes the light as shown in FIG. 13B , Downward, etc., and improves the overall luminous intensity of the downward light distribution.

14B, the light distribution pattern as shown in FIG. 14B is formed by combining the other light distribution patterns of the reflector pieces H1, V2 to H4, V2 as shown in FIG. 14A, And the light distribution pattern shown in FIG. 9B is combined with the light distribution pattern designed such as downward as shown in FIG.

The upper reflector 112 reflects the light emitted from the upper package 115 fastened to the upper portion of the support 114 and distributes the light to the headlamp pattern of the headlamp. The reflector pieces 113 constituting the upper reflector 111 Are different from each other, and these light distributions are combined to complete a light distribution pattern satisfying the upward light standard.

16A, the reflector piece 113 of the upper reflector 111 constituting the upper reflector 111 reflects the light irradiated from the upper package 115 and distributes the light as shown in FIG. 16B, The center light intensity of the upward light is improved and the reflector piece 113 of the upper reflector 111 (H2 and V3) constituting the upper reflector 111 reflects the light irradiated from the upper package 115, (b), the center luminous intensity of the upward light is further improved by overlapping with the light distribution pattern shown in Fig. 16 (b).

18A, the reflector piece 113 (H3, V3) constituting the upper reflector 111 reflects the light irradiated from the upper package 115 to be distributed as shown in FIG. 18B 16 (b) and 17 (b) to further improve the center luminous intensity of the upward light.

19A, the reflector piece 113 of the upper reflector 111 (H4, V3) constituting the upper reflector 111 reflects the light irradiated from the upper package 115 and distributes the light as shown in FIG. 19B, The center luminous intensity of the upward light is further improved by overlapping with the light distribution pattern shown in Figs. 16 (b), 17 (b) and 18 (b).

20 (a), the light distribution pattern as shown in FIG. 20 (b) is formed by combining the light distribution patterns of the reflector pieces H1, V3 to H4 and V3, and the light distribution pattern for increasing the central light intensity of the upward light is configured do.

21A, the reflector piece 113 of the upper reflector 111 constituting the upper reflector 111 reflects the light irradiated from the upper package 115 to form an upper reflector 111 as shown in FIG. 21 (b) Thereby constituting an overall light distribution pattern.

The reflector piece 113 of the upper reflector 111 constituting the upper reflector 111 reflects the light irradiated from the upper package 115 as shown in FIG. 22 (a) Thereby constituting a light distribution pattern.

23A, the reflector piece 113 of the upper reflector 111 (H3, V4) reflects the light irradiated from the upper package 115 to form an upper reflector 111 as shown in FIG. 23 (b) Thereby improving the center luminous intensity.

The reflector piece 113 of the upper reflector 111 (H4 and V4) constituting the upper reflector 111 reflects the light irradiated from the upper package 115 as shown in FIG. 24 (a) Thereby constituting a light distribution pattern.

As shown in FIG. 25A, when the light distribution patterns of the reflector pieces H1 and V4 to H4 and V4 are combined, a light distribution pattern as shown in FIG. 25B is formed to improve the central luminous intensity of the upward light, And the horizontal and vertical light distribution patterns of the light guide plate are constituted.

When the light distribution pattern shown in FIG. 20 (b) is combined with the light distribution pattern shown in FIG. 25 (b), a light distribution pattern designed as an upward light is configured as shown in FIG.

When the transporting device driver lights up the lower package 116 through the switch operation, the light irradiated from the lower package 116 is reflected by the reflector pieces 113 of the lower reflector 112 so that the downward light is emitted, When the upper package 116 is turned on through the switch operation, when the upper package 115 is turned on, the light emitted from the upper package 115 is reflected by the reflector pieces 113 of the upper reflector 111 and the upper light is emitted .

Each of the reflector pieces 113 of the upper and lower reflectors 111 and 112 is formed into a different angle and an aspherical curvature so that the light is diffused in different patterns and the upper and lower reflectors And so on.

Therefore, it is very easy to implement the light distribution pattern as designed.

The aspherical curvature, tilt, and position of the reflective surface of each reflector piece 113 are determined depending on the designed light distribution pattern.

Although the upper reflector 111 and the lower reflector 112 are separated from each other in the embodiment of the present invention, the upper and lower reflectors 111 and 112 may be integrally formed.

The headlamp assembly of the present invention uses an LED as a light source. The LED emits light, generates heat, and if the heat is not properly cooled, the light efficiency and lifetime of the LED drastically deteriorate.

27, the piping 119 is connected to the lower part of the upper and lower packages 115 and 116, and the cooling fluid 120 flows through the piping 119, so that the heat generated by the LED 117 It is preferable to constitute the cooling device.

It is also possible to form a pipe 119 which is in contact with the PCB substrate 118 on the outside of the PCB substrate 118 as shown in FIG. 27, to cool the cooling fluid 120 to the pipe 119, (Not shown) through which the cooling fluid 120 flows, and the cooling fluid 120 flows through the flow path.

The cooling fluid 120 is configured to flow inside the pipe 119 by means of a motor or the like, and the cooling fluid 120 is configured to be cooled after being cooled by a radiating fin (not shown).

The heat generated by the LED 117 is absorbed by the LED 117 using the heat pipe instead of the pipe 119. In this case, It may be configured to radiate heat to the outside.

28, a PCB substrate 118 of the upper and lower packages 115 and 116 is connected to a PCB substrate 118 formed by stacking a copper layer 121 and a graphite layer 122, May be used.

Since the graphite layer 122 has excellent thermal conductivity in the horizontal direction, the heat generated from the LED 117 can be uniformly conducted to the PCB substrate 118, so that the heat generated from the LED 117 can be quickly dissipated to the outside .

It is possible to construct the cooling fan 120 to contact the piping 119 through which the cooling fluid 120 flows on the PCB substrate 118 formed by stacking the graphite layers 122 as described above, have.

The technical idea of the present invention has been described above with reference to the embodiments.

It will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described above from the description of the present invention.

Further, although not explicitly shown or described, those skilled in the art can make various modifications including the technical idea of the present invention from the description of the present invention Which is still within the scope of the present invention.

The above-described embodiments described with reference to the accompanying drawings are for the purpose of illustrating the present invention, and the scope of the present invention is not limited to these embodiments.

100: Headlight assembly
101: Housing
102: cover
110: Reflector
111: upper reflector
112: Lower reflector
113: Reflector piece
114:
115: upper package
116: Lower package
117: LED
118: PCB substrate
119: Piping
120: cooling fluid
121: copper layer
122: graphite layer
α: upper optical axis gradient
β: Lower optical axis gradient

Claims (6)

CLAIMS 1. An LED headlamp assembly for a light vehicle including a light source and a reflector,
A lower package having a top package on its upper surface and a lower package on its lower surface;
An upper reflector which reflects the light emitted from the upper package and upwardly distributes light from the cut-off line to form an upper light distribution pattern, the reflector pieces formed in a predetermined number of different slopes and aspherical curvature are successively connected to each other;
A reflector piece formed by a predetermined number of slopes and an aspherical curvature are successively joined to each other, and a lower reflector is disposed at a lower portion of the support to reflect the light emitted from the lower package and down- ; ≪ / RTI >
Wherein one of the reflector pieces constituting the downward light distribution pattern is configured to form a signal beam illuminating a road sign even in a downward light distribution pattern by upwardly distributing the light irradiated from the lower package above the cutoff line LED headlight assembly.
The method according to claim 1,
Wherein one reflector piece of the lower reflector forming the signal beam comprises:
Wherein the light emitted from the lower package is arranged to be upwardly directed from the cut-off line at a center position of the downward light distribution pattern.
The method according to claim 1,
The upper reflector or the lower reflector,
Wherein a plurality of reflector pieces formed by a predetermined number of different slopes and aspherical curvatures are integrally molded. ≪ RTI ID = 0.0 > 11. < / RTI >
The method according to claim 1,
Wherein the optical axis of the upper package is opposed to the upper reflector direction and the optical axis of the lower package is opposed to the lower reflector direction.
The method according to claim 1,
Wherein at least one of the reflector pieces constituting the upper and lower reflectors is arranged to be superimposed on the central area of the light distribution pattern to improve the central area luminous intensity of the light distribution pattern.
In the first flavor,
Further comprising a cooling means for cooling the upper and lower packages. ≪ RTI ID = 0.0 > 11. < / RTI >

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