KR101296336B1 - Integrated led head lamp lens and hea lamp - Google Patents

Abstract

The present invention relates to an LED headlamp, which is formed on a plate-like body, the shape of the long axis and short axis cross-section is configured differently and consists of a downward lens portion having an asymmetric curvature radius and a plurality of upward lens portion formed on the plate-like body Since the lamp is mounted integrally, the manufacturing time is shortened to reduce the manufacturing cost, and the headlamp is provided with a vertical and vertical integrated LED headlamp lens which has the effect of improving the assembly precision of the optical element.

Description

Vertical LED headlight lens and headlight {INTEGRATED LED HEAD LAMP LENS AND HEA LAMP}

The present invention relates to an LED headlamp, and more particularly, to an up-down integrated LED headlamp lens in which an upright lamp and a downlight lamp satisfying light distribution characteristics of the headlamp are integrated.

Headlights are lights that are attached to the front of electric trains, automobiles, motorcycles, and the like to illuminate the front when driving at night. Headlights include a low beam (40 m visible distance) that shines down and a high beam (100 m visible distance) that shines upward.

The types of lamps used for headlights include halogen lamps, HID lamps and LEDs. In particular, LEDs have the same brightness as genuine halogen lamps, have a lifespan of up to 5 times or more, and emit white light close to natural colors, which makes the driver less tired. The light emitted from the LEDs is focused in order to satisfy the lighting characteristics of the headlamp. I need a lens.

A condenser lens is a lens for obtaining a high illuminance by concentrating a light beam emitted from a light source within a certain solid angle within a smaller solid angle.

As a prior art for integrating a plurality of condenser lenses, Korean Patent No. 10-1011818 discloses a headlamp using an aspherical multilayer lens and a light emitting diode. The light emitted by the light-emitting diode integrally forms a flat incidence plane for projecting forward and a convex refracting plane for refracting the light passing through the incidence from side to side, so that the emitted light is bright and does not disturb the driver's view.

However, such a prior art has a problem that the manufacturing process of the headlamp is complicated and the time is increased because the downlight and the uplight are separated.

Republic of Korea Patent Publication No. 10-1011818 (2011,01,24)

 An object of the present invention for solving the above problems is to provide an up and down integrated LED headlamp lens to simplify the headlight manufacturing process and shorten the time by making the integrated lamp mounting method, rather than the individual lens mounting method.

In order to achieve the above object, the present invention is formed in the plate-like body, the longitudinal axis and the uniaxial cross-section is configured differently up and down integral type including a downward lens portion having asymmetric curvature radius and a plurality of upward lens portion formed on the plate-like body Provide LED headlight lens. In addition, the upward lens unit has a light distribution characteristic is symmetric up, down, left and right, and may have a light distribution characteristic that is condensed within 10 degrees. In addition, the downward lens unit may have an asymmetric light distribution characteristic. In addition, it may further include a plurality of bosses protruding to the rear of the plate-like body and ribs formed on the circumferential surface of the plate-like body. In addition, the upward lens portion and the downward lens portion may be integrally formed on the plate-like body.

According to the above-described up and down integrated LED headlamp lens of the present invention, since the upper and lower lamps are mounted integrally, the manufacturing time of the headlamp is shortened, the manufacturing cost is reduced, and the headlamp is reduced in size and weight, and the assembly precision of the optical element is improved. have.

1 is a perspective view showing an embodiment of an up-down integrated LED headlamp lens of the present invention;
FIG. 2 is a rear view of the up-down integrated LED headlamp lens of FIG. 1; FIG.
3 is a side cross-sectional view of the up-down integrated LED headlamp lens of FIG. 1;
Figure 4 is an exploded perspective view showing an embodiment of the up and down integrated LED headlamp of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing an embodiment of an up-down integrated LED headlamp lens of the present invention, FIG. 2 is a rear view of the up-down integrated LED headlamp lens of FIG. 1, and FIG. 3 is a side cross-sectional view of the up-down integrated LED headlamp lens of FIG. 1.

As shown, the LED headlamp lens of the present embodiment is formed on the plate body 10, the shape of the long axis and short axis cross-section is configured differently to the downward lens portion 11 and the plate body 10 having an asymmetric curvature radius It consists of a plurality of upward lens portion 12 is formed.

The upward lens unit 12 and the downward lens unit 11 are integrally formed in the plate-like body 10, and it is preferable that a translucent material such as silicon, epoxy, glass, or plastic is used, and the integral downward lens unit 11 and It is preferable to make a mold for the shape of the upward lens portion 12 and the plate 10, and then to pour the solution in which the material of the translucent material is dissolved into the mold to harden it.

The plate body 10 is circular and has a rim 13 formed at a predetermined width in a circumference thereof, and the positions of the down lens part 11 and the up lens part 12 are determined in consideration of the position of the LED 21 serving as the light source. do. The upward lens portion 12 formed on the plate body 10 is wider toward the plate body 10 from the LED contact portion, the side is curved. Total reflection occurs on the curved side, which increases the light collection efficiency. Light incident on the LED contact portion is collected by passing through the convex surface formed toward the front surface of the plate-shaped body 10 of the upward lens unit 12. The downward lens unit 11 has a shape in which two upward lens units 11 are connected, but a portion formed on the front surface of the plate-shaped body 10 is different from the upward lens unit 11. The shape of the long axis and the short axis are configured differently, and the asymmetrical curvature angle is realized by applying the asymmetrical curvature radius.

In addition, it is preferable that the LED 21 used as a light source is a blue light-emitting body which emits a wavelength of 430-480 nm, or uses a UV light-emitting body which emits a wavelength of 350 nm-410 nm. There may be a plurality of phosphors applied to the LED 21 and a plurality of phosphors may be excited by blue light to emit white light, and the LED 21 may emit light of a color other than white light.

While the light emitted from the LED 21 passes through the downward lens unit 11 and the upward lens unit 12, the light is collected. The upward lens unit 12 according to the present exemplary embodiment has a light distribution characteristic in which transmitted light is symmetrical up, down, left, and right, and is focused within 10 degrees. In addition, since the downward lens portion 11 is formed with an asymmetrical curvature radius which is gently inclined while passing through the central axis at the top end of the lens, the light transmitted to the downward lens portion 11 satisfies the vertical and asymmetric light distribution characteristics of the downward light. Done.

The boss 15 is formed on the back surface of the plate-like body 10. The boss 15 is a pillar formed on the rear surface of the plate 10. When the plate 10 is coupled to the lamp housing 30 on which the PCB board 20 is mounted, the upward lens unit 11 and the downward lens unit ( 12) to maintain the separation between the plate body 10 and the PCB substrate 20 to float in the air.

A rib 14 is formed on the circumferential surface of the plate 10 to prevent rocking from external vibration of the plate 10 and is used for coupling with the lamp housing 30.

The bosses 15 and the ribs 14 are used so that the plate body 10 is not affected by external vibration and impact from the lamp housing 30.

Since the upper lens unit 12 and the lower lens unit 11 are integrally formed, the headlamp is easily manufactured and the lens is manufactured at the same time, thereby reducing the production time and production cost. In addition, the downward lens portion 11 satisfies the up-down asymmetric light distribution characteristics of the downlight with a configuration of an asymmetrical curvature radius having different major and minor cross-sectional shapes. In addition, since the plurality of upward lens units 12 are concentrated in a small space, the headlamps are reduced in size and weight, and the assembly precision of the optical element is improved.

Figure 4 is an exploded perspective view of one embodiment of the up and down integrated LED headlamp of the present invention. As shown, a plurality of upward lens portions formed in the plate-shaped body 10 and formed in the downward lens portion 11 and the plate-shaped body 10 having asymmetrical curvature radiuses having different shapes of major and minor cross sections. A lamp housing which is spaced apart from the plate body 10 by the ribs 14 and the bosses 15 formed under the plate body 10 and the upper and lower integral LED headlamp lenses formed of the plate body 10. 30) on the PCB 20 and the plate 10 with the LED 21 located between the plate 10 and the lamp housing 30 mounted on the plate 10 to protect the plate 10 from external impact It is mounted on the rubber packing 42 and the rubber packing 42 and is mounted on the out lens 41 and the out lens 41 having no influence on the light distribution characteristic, so that the out lens 41 and the rubber packing 42 and the plate body 10 ) And a housing 40 coupled with the lamp housing 30 with the PCB substrate 20 therebetween.

The PCB substrate 20 and the lamp housing 30 are coupled to the plate body 10 below, and the rubber packing 42, the out lens 41, and the housing 40 are coupled upward. All components are coupled by the fastening of the housing 40 and the lamp housing 30.

Below the plate-shaped body 10 is a PCB substrate 20 on which the LED 21 is mounted. The PCB substrate 20 is located in the lamp housing 30 in which the heat dissipation plate 33, the substrate support frame 31, and the substrate support wall 32 are formed. The rib 14 is in contact with the substrate mounting wall 32 and the boss 15 is in contact with the PCB substrate vertically. The action of the rib 14 and the boss 15 corresponds to the external shock and vibration applied to the plate-like body 10. The substrate support frame 31 may be formed of a material which can be fixed to prevent the PCB substrate 20 from moving and heat generated from the LED 21 can be transferred to the heat sink 33. The substrate mounting wall 32 is preferably formed of a material capable of protecting the PCB 20 and the plate 10 from external impact and various contaminants.

The rubber packing 42 is mounted on the edge 13 formed in the plate body 10. The rubber packing 42 is band-shaped and the same size as the edge 13. The out lens 41 is raised above the rubber packing 42. The out lens 41 is preferably designed such that light passing through the condenser lens and satisfying the light distribution characteristic of the headlamp is not changed. In one embodiment a planar lens is used. The rubber packing 42 and the out lens 41 prevent the inflow of foreign substances from the outside and protect the plate 10 from external shock such as vibration. The housing 40 is raised above the out lens 41. A projection 44 and a lamp formed in the housing 40 with the out lens 41, the rubber packing 42, the plate body 10, and the PCB substrate 20 between the housing 40 and the lamp housing 30. The protrusion 34 formed in the housing 30 is coupled to the bolt 43 to be coupled thereto. The rib 14 and the boss 15 are kept apart from the PCB to prevent breakage of the plate 10 due to vibration, and the rubber packing 42 and the out lens 41 are damaged by the impact from the outside. The plate 10 is prevented from damaging and influx of contaminants.

The embodiments of the present invention described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention and are not intended to cover all the technical ideas of the present invention. Therefore, various equivalents And variations are possible. Accordingly, the present invention is not limited to the above-described embodiments, and various modifications can be made by those skilled in the art without departing from the gist of the present invention as claimed in the claims. Such changes will fall within the scope of the claims.

10: plate body 11: downward lens portion 12: upward lens portion
13: border 14: rib 15: boss
20: PCB substrate 21: LED 30: lamp housing
31: substrate support frame 32: substrate support wall 33: heat sink
34: projection 40: housing 41: out lens
42: rubber packing 43: bolt 44: protrusion

Claims (6)

In the lens for the headlight of an electric train,
A downward lens portion formed on the plate-shaped member and configured to have different shapes of major and minor axes of the lens and having an asymmetrical curvature radius;
Up and down integrated LED headlamp lens including a plurality of upward lens portion formed on the plate-like body. The method of claim 1,
The upward lens unit
Up-down integrated LED headlight lens, characterized in that the light distribution characteristics are symmetrical up, down, left and right, and has a light distribution characteristic collected within 10 degrees. The method of claim 1,
The downward lens unit
An up-down integrated LED headlamp lens having an asymmetric light distribution characteristic. The method of claim 1,
A plurality of bosses projecting to the rear surface of the plate-like body;
Rib formed on the circumferential surface of the plate body; up and down integrated LED headlight lens further comprises. The method of claim 1,
The up-down integrated LED headlight lens, characterized in that the upward lens portion and the downward lens portion formed integrally with the plate-like body. In the headlight of an electric train,
An up-down one-piece integrated LED headlamp lens formed on the plate-shaped body, and having a long axis and a short-axis cross-sectional shape different from each other and having a downward lens portion having an asymmetrical curvature radius and a plurality of upward lens portions formed on the plate-shaped body; and
A lamp housing positioned below the plate body and spaced apart by ribs and bosses formed on the plate body; and
PCB board mounted with the LED located between the plate and the lamp housing; And
A rubber packing mounted on the plate to protect the plate from an external impact; and
An out lens mounted on the rubber packing and having no influence on light distribution characteristics; and
And a housing mounted on the out lens and coupled to the lamp housing with the out lens, the rubber packing, the plate-like body, and the PCB substrate interposed therebetween.

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