EP2985515A1

EP2985515A1 - Vehicle headlight assembly

Info

Publication number: EP2985515A1
Application number: EP14002738.4A
Authority: EP
Inventors: Chen-Wei Hsu
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-08-05
Filing date: 2014-08-05
Publication date: 2016-02-17

Abstract

A head light assembly includes a body 2 having a base 20 and a connection portion 23 respectively connected to two ends thereof. A circuit board 3 is connected to the base 20 and has at least two Light Emitting Diodes (LEDs) 30, 31. A lens 4 is connected to the base 20 and has a room 40 in which the circuit board 3 is located. The lens 4 has a high beam area 43 and a low beam area 44. The at least two Light Emitting Diodes (LEDs) 30, 31 are respectively located corresponding to the high beam area 43 and the low beam area 44. A radiator 5 is connected to the connection portion 23 and has multiple fins 52.

Description

BACKGROUND OF THE INVENTION

1. Fields of the invention

The present invention relates to a head light assembly, and more particularly, to a head light assembly having two Light Emitting Diodes (LEDs) which are located corresponding to a low beam area and a high beam area of a lens.

2. Descriptions of Related Art

The conventional head light assembly 1 is disclosed in Figs. 1 and 2, and generally comprises a shade 10 in which a space 100 is defined. The space 100 is defined by a curved reflection face 101 and a light bulb 11 is located in the space 100, such as an incandescent light bulb or a xenon light bulb. A separation board 12 and a connection member 13 are located at the front side of the shade 10. The separation board 13 has a hole 120. A fence unit 14 is located in the connection member 13 and has an electro-magnetic valve 140 and a fence 141. A cover 15 is connected to the connection member 13 by a fixing frame 16. The light beams generated from the light bulb 11 is reflected by the reflection face 101 and pass through the cover 15 to illumination the road form the driver. The fence unit 14 is used to control the angle and range that the light beams reach and form the low beam and the high beam. However, the light beams reflected from the reflection face 101 are random and not concentrated, the illumination is not sufficient and may affects road safety. The conventional incandescent light bulb or the xenon light bulb in the space 100 of the shade 10 generates significant heat during operation and there is not proper heat removing device on the shade 10 so that the heat cannot be removed and is trapped in the shade 10, the high temperature shortens the life of the light bulb 11. Besides, the conventional head light assembly has to be equipped with the fence unit 14 to control the angle and range of the light beams, so that the conventional head light assembly is bulky and expensive.
Another head light assembly uses Light Emitting Diodes LEDs as the light source which provide higher illumination but cannot be concentrated and may confuse the coming drivers. The conventional LEDs head light assembly cannot make an obvious high beam and low beam.
The present invention intends to provide a head light assembly which eliminates the shortcomings mentioned above.

SUMMARY OF THE INVENTION

The present invention relates to a head light assembly and comprises a body having a base connected to the first end thereof, and the base has threaded holes. A connection portion is connected to the second end of the body. A circuit board is connected to the base and has at least two Light Emitting Diodes (LEDs). The circuit board has through holes which are located corresponding to the threaded holes of the base. Bolts extend through the through holes and are connected to the threaded holes to connect the circuit board to the base. A lens is connected to the base and has a room. The circuit board is located in the room. The lens has a high beam area and a low beam area. The at least two Light Emitting Diodes (LEDs) are respectively located corresponding to the high beam area and the low beam area. A radiator is connected to the connection portion and has multiple fins.
Preferably, the base has multiple fins.
Preferably, the high beam area has a concave face defined in the outside thereof. A cone-shaped portion extends from the inside of the high beam area and extends toward the room. The cone-shaped portion has a recess and one of the at least two Light Emitting Diodes (LEDs) is located in the recess. The low beam area has a convex-curved face defined in the outside thereof. A flat surface is formed at the inside of the low beam area.
Preferably, the circuit board has multiple positioning holes. The room of the lens has multiple posts extending from the inside thereof. Each post has an insertion on the distal end thereof. The insertions are engaged with the positioning holes of the circuit board.
Preferably, the connection portion has outer threads defined in the outside thereof. The heat-removing member has a central hole which has inner threads defined in the inner periphery thereof. The outer threads of the connection portion are engaged with the inner threads of the heat-removing member.
Preferably, the heat-removing member has multiple passages.
The primary object of the present invention is to provide a head light assembly wherein the no fence unit is needed and the light beams generated from the LEDs can be controlled to create a high beam and a low beam. The high temperature generated from the LEDs is removed by the heat-removing member.
The present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, a preferred embodiment in accordance with the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a cross sectional view to show a conventional heat light assembly wherein the low beam is created;
Fig. 2 is a cross sectional view to show a conventional heat light assembly wherein the high beam is created;
Fig. 3 is an exploded view of the heat light assembly of the present invention;
Fig. 4 is a perspective view to show the lens of the heat light assembly of the present invention;
Fig. 5 is a perspective view to show the lens of the heat light assembly of the present invention;
Fig. 6 is a cross sectional view to show the lens of the heat light assembly of the present invention;
Fig. 7 is a cross sectional view to show the heat light assembly of the present invention wherein the high beam is created;
Fig. 8 illustrates the light pattern of the high beam generated from the heat light assembly of the present invention;
Fig. 9 is a cross sectional view to show the heat light assembly of the present invention wherein the low beam is created, and
Fig. 10 illustrates the light pattern of the low beam generated from the heat light assembly of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Referring to Figs. 3 to 4, the head light assembly of the present invention comprises a body 2 having a base 20 connected to the first end thereof, and the base 20 has threaded holes 21. The base 20 further has multiple fins 22. A connection portion 23 is connected to the second end of the body 2 and has outer threads 24 defined in the outside thereof. A circuit board 3 is connected to the base 20 and has at least two Light Emitting Diodes (LEDs) 30, 31. The circuit board 3 has through holes 32 which are located corresponding to the threaded holes 21 of the base 20. Bolts 34 extend through the through holes 32 and are connected to the threaded holes 21 to connect the circuit board 3 to the base 20. The circuit board 3 has multiple positioning holes 33.
A lens 4 is connected to the base 20 and has a room 40 in which the circuit board 3 is located. The lens 4 has a high beam area 43 and a low beam area 44, wherein the at least two Light Emitting Diodes (LEDs) 30, 31 are respectively located corresponding to the high beam area 43 and the low beam area 44. The room 40 of the lens 4 has multiple posts 41 extending from the inside thereof. Each post 41 has an insertion 42 on the distal end thereof and the insertions 42 are engaged with the positioning holes 33 of the circuit board 3 so as to position the lens 4 to the base 2.
The high beam area 43 has a concave face 430 defined in the outside thereof, and a cone-shaped portion 45 extends from the inside of the high beam area 43 and toward the room 40. The cone-shaped portion 45 has a recess 46 which has a convex-curved face 460 defined in the inside thereof, and the recess 46 has a curved face 461 defined in the outside thereof. The low beam area 44 has a convex-curved face 440 defined in the outside thereof, and a flat surface 441 is formed at the inside of the low beam area 44.
A radiator 5 is connected to the connection portion 23 and has multiple fins 52. The radiator 5 has a central hole 50 which has inner threads 51 defined in the inner periphery thereof. The outer threads 24 of the connection portion 23 are engaged with the inner threads 51 of the radiator 5. Plural positioning grooves 53 are defined on the radiator 5.
When in assembling, as shown in Figs. 3 to 6, the circuit board 3 is connected to the base 20 by extending the bolts 34 through the through holes 32 of the circuit board 3 and connected with the threaded holes 21 of the base 20. The lens 4 is then connected to the base 20 and the circuit board 3 is located in the room 40. The posts 41 of the lens 4 are located in alignment with the positioning holes 33 of the circuit board 3, the insertions 41 are engaged with the positioning holes 33 to position the lens 4 to the body 2. The Light Emitting Diode (LED) 30 that is located in the high beam area 43 is accommodated in the recess 46. The other Light Emitting Diode (LED) 31 is located corresponding to the low beam area 44. The connection portion 23 of the body 2 is threadedly connected to the central hole 50 of the heat-removing member 5 by the engagement between the inner threads 51 and the outer threads 24. The body 2 is accommodated in a shade 6 so as to complete the assembly.
When using the high beam, as shown in Figs. 7 to 10, the at least two Light Emitting Diodes (LEDs) 30, 31 are both activated and the Light Emitting Diode (LED) 30 that is located at the low beam area 44 only be activated by half of its power. The light beams generated from both of the Light Emitting Diodes (LEDs) 30, 31 pass through the different curvatures of the low beam area 44 and the high beam area 43 of the lens 4 to control the angle and range of the light beams. The high beam is illustrated as shown in Figs. 7 and 8.
When using the low beam, as shown in Figs. 7 to 10, the Light Emitting Diode (LED) 31 that is located at the low beam area 44 is activated to its full power, and the Light Emitting Diode (LED) 30 that is located at the high beam area 43 is shut off. The light beams generated from the Light Emitting Diode (LED) 31 pass through the low beam area 44 of the lens 4 to illuminate the short distance of the road as shown in Figs. 9 and 10.
The different curvatures of the low beam area 44 and the high beam area 43 of the lens 4 control the angle and range of the light beams. No fence unit and/or convex lens are needed in the shade 6. Only the Light Emitting Diodes (LEDs) 30, 31 cooperated with the different curvatures of the low beam area 44 and the high beam area 4 of the lens 4 to achieve the purposes of controlling the low beam and the high beam. The light beams are even and do not create glare to the coming drivers. The fins 22 on the body 2 and the fins 52 of the heat-removing member 5 quickly bring the heat generated from the at least two Light Emitting Diodes (LEDs) 30, 31 away from the head light assembly so as to prolong the life of the head light assembly.
While we have shown and described the embodiment in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.

Claims

A head light assembly comprising a body 2, and a circuit board 3, in characterized that:
the body 2 having a base 20 connected to a first end thereof, the base 20 having threaded holes 21, a connection portion 23 connected to a second end of the body 2;the circuit board 3 connected to the base 20 and having at least two Light Emitting Diodes (LEDs) 30, 31, the circuit board 3 having through holes 32 which are located corresponding to the threaded holes 21 of the base 20, bolts 34 extending through the through holes 32 and connected to the threaded holes 21 to connect the circuit board 3 to the base 20;the lens 4 connected to the base 20 and having a room 40, the circuit board 3 located in the room 40, the lens 4 having a high beam area 43 and a low beam area 44, the at least two Light Emitting Diodes (LEDs) 30, 31 respectively located corresponding to the high beam area 43 and the low beam area 44, and the radiator 5 connected to the connection portion 23and having multiple fins 52.
The head light assembly as claimed in claim 1, wherein the base 20 has multiple fins 22.
The head light assembly as claimed in claim 1, wherein the high beam area 43 has a concave face 430 defined in an outside thereof, a cone-shaped portion 45 extending from an inside of the high beam area 43 and toward the room 40, the cone-shaped portion 45 has a recess 46 and one of the at least two Light Emitting Diodes (LEDs) 30, 31 is located in the recess 46, the low beam area 44 has a convex-curved face 460 defined in an outside thereof, a flat surface 461 is formed at an inside of the low beam area 44.
The head light assembly as claimed in claim 1, wherein the circuit board 3 has multiple positioning holes 33, the room 40 of the lens 4 has multiple posts 41 extending from an inside thereof, each post has an insertion 42 on a distal end thereof, the insertions 42s are engaged with the positioning holes 33 of the circuit board 3.
The head light assembly as claimed in claim 1, wherein the connection portion 23 has outer threads 24 defined in an outside thereof, the radiator 5 has a central hole 50 which has inner threads 51 defined in an inner periphery so as to the outer threads 24 of the connection portion 23 are engaged with the inner threads 51 of the radiator 5.
The head light assembly as claimed in claim 1, wherein the radiator 5 is defined with plural positioning grooves 53.