KR20120063382A - Head lamp assembly for vehicle - Google Patents

Abstract

The present invention relates to a headlamp assembly for a vehicle, comprising: a base plate installed in a headlamp; A reflecting mirror installed to rotate up, down, left and right in the base plate and having a curvature of 45 to 55 mm; A 25 W HID lamp installed inside the reflector; An aspherical lens spaced apart from the lamp by 80 to 100 mm and fixedly coupled to the front surface of the reflector and having a diameter of 60 to 80 mm; And an actuator configured to form the light provided by the lamp in a predetermined beam pattern, thereby realizing a necessary beam pattern in a small and medium-sized vehicle, and preventing cost increase and weight increase in advance.

Description

Head lamp assembly for vehicle

The present invention relates to a vehicle headlamp assembly, and more particularly to a vehicle headlamp assembly that can be applied to small and medium-sized cars by optimizing the AFS headlamp.

In general, the vehicle is configured as a lamp device for the purpose of informing the driving state of the vehicle to the vehicle and other vehicles or other road users so that the object of the driving direction can be seen well at night driving.

On the other hand, a head lamp, also known as a headlight, is a lamp that functions to shine a forward path through which a vehicle proceeds, and requires a brightness capable of identifying an obstacle on a road at a distance of 100 m in front at night. The standard of the headlamp is set differently from country to country, and in particular, the direction of irradiation of the headlamp beam is set differently depending on whether the vehicle is driven right (left driving) or left (right driving).

Conventional vehicle headlamps provide drivers with a fixed lighting pattern, regardless of the changing road conditions. Therefore, the vehicle is glare due to high-speed driving, which requires a longer viewing distance than the existing road, or the urban driving, rain, snow, or wet road reflection, where the ambient light is relatively brighter than other roads, and the dependence of the headlamp brightness is relatively low. When driving in bad weather conditions that increase and decrease visibility, the driver does not have adequate visibility to drive safely.

Adaptive front lighting system (AFLS) was introduced in an attempt to improve the driver's and opponent's frontal awareness. The adaptive headlamp system (AFLS) is a system that changes the width and length of the headlamp light according to the driving conditions, road conditions and environmental conditions of the vehicle. For example, separate lighting may be possible with adaptive headlamp systems when cornering a turnway at low speeds. In addition, the brightness of the headlamp can be adjusted so that the driver of the vehicle approaching the opposite lane is not blinded.

This conventional AFS headlamp will be described with reference to FIGS.

FIG. 1 illustrates a headlamp of a general vehicle. The headlamp 1 of the vehicle includes a lamp module 10 and a high beam.

2 and 3 show a conventional lamp module and actuator configured in the headlamp.

As shown in FIG. 3, the reflector 12 rotated up, down, left and right on the base plate 11, the lamp 15 of the high light source 35W HID installed in the inner central portion of the reflector 12, and the reflector. A lens holder 13 coupled to the front surface of the lens 12, an aspherical lens 14 fixed to the front surface of the reflecting mirror 12 by the lens holder 13, and light provided from the lamp 15 are predetermined. The actuator 20 which drives the shield formed by the beam pattern of this is comprised.

Here, the shield is a first shield (Ratation shield) 21 for generating the beam irradiated from the lamp 15 in a predetermined beam pattern, and the second shield (Wet) to reduce the amount of light when the glare of the road surface is severe shield 22).

As shown in FIG. 2, the actuator 20 includes a driving means for driving the first and second shields 21 and 22 described above, and the driving means includes a motor installed in the actuator 20. 23, an output gear 23a driven by the motor 23, a drive gear 24 meshed with and interlocked with the output gear 23a, and interlocked with and interlocked with the drive gear 24, respectively. And first and second gears 21a and 22a coupled to the first and second shields 21 and 22, respectively.

Therefore, the power of the motor 23 is transmitted to the output gear 23a-> the drive gear 24-> the first and second gears 21a and 22a-> the first and second shields 21 and 22, The first and second shields 21 and 22 are rotated in the same direction by the operation of the motor 23.

Beam patterns generated by the lamp module 10 are as shown in (a) and (b) of FIG.

However, such a conventional AFS headlamp (1) is not suitable for the problem of the increase in weight and the increase in weight due to the excessive components and unnecessary devices to be applied to small and medium-sized cars.

Therefore, in order to apply the AFS headlamp 1 to small and medium-sized cars, it is necessary to optimize the configuration and structure of the AFS headlamp 1.

Accordingly, the present invention has been made to meet the above-described demands of the present invention, and a vehicle headlamp assembly capable of constructing an AFS headlamp in a small and medium-sized vehicle while improving the structure of the lamp module and simplifying the configuration of the actuator. The purpose is to provide.

The above object is an adaptive headlamp assembly constituted by a small and medium-sized vehicle, comprising: a base plate mounted to the headlamp; A reflecting mirror installed to rotate up, down, left and right in the base plate and having a curvature of 45 to 55 mm; A 25 W HID lamp installed inside the reflector; An aspheric lens having a diameter of 60 to 80 mm and fixed to the front surface of the reflector spaced apart from the lamp by 80 to 100 mm; And an actuator configured to form the light provided from the lamp in a predetermined beam pattern.

The actuator may include an output gear driven by a motor; A gear interlocked with the output gear; And a rotation shield coupled to the gear and rotating together with the gear.

According to the vehicle headlamp assembly of the present invention, by improving the structure of the lamp module there is an advantage that can ensure the road surface performance suitable for small and medium-sized cars.

In addition, according to the present invention, by removing the conventional second shield in the actuator and at the same time the angle of rotation of the first shield and the shield cross section in the front view (optimal) can realize the beam pattern required for small and medium-sized cars Therefore, the cost increase and the weight increase can be prevented in advance.

1 is a view showing a conventional AFS headlamp.
2 is a view showing the lamp module and the actuator of the conventional AFS headlamp.
3 is a cross-sectional view showing the structure of a conventional lamp module.
4 is a beam pattern generated by a conventional lamp module.
5 is a view showing a lamp module of the AFS headlamp according to the present invention.
6 is a cross-sectional view showing the structure of a lamp module according to the present invention.
7 is a view showing an actuator according to the present invention.
8 is a beam pattern generated by the lamp module according to the present invention.
9 is a view showing the pattern of the shield of the AFS headlamp and the road surface pattern according to the present invention.

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

First, prior to explaining the present invention, the same reference numerals are given to the same parts as in the prior art, and redundant descriptions are omitted.

5 and 6 illustrate a lamp module of the AFS headlamp according to the present invention, the lamp module 100 includes a base plate 11 installed in a housing (not shown) of the headlamp 1, and A reflector 110 which is installed to rotate up, down, left and right on the base plate 11 and has a curvature R of 45 to 55 mm, a lamp 130 of 25 W HID installed inside the reflector 110, and An aspherical lens 120 spaced apart from the lamp 130 by a distance L of 80 to 100 mm and fixed to the front surface of the reflector 110 as a lens holder 13 and having a diameter D of 60 to 80 mm; An actuator 200 for forming the light provided from the lamp 130 in a predetermined beam pattern.

The base plate 11 is perforated in order to install the reflector 110 at its center portion, and one side thereof is provided with rotating means (not shown) for rotating the reflector 110 up, down, left and right on the base plate 11. .

In addition, the reflector 110 is a portion corresponding to the body of the lamp module 100, is formed in a hemispherical shape, the inner surface is formed of a reflecting surface that reflects the light irradiated from the lamp 130. The reflector 110 is formed with a curvature R of 45 to 55 mm in order to improve the straightness of the light reflected from the inner surface thereof, but more preferably, a curvature R of 50 mm. Particularly, if the curvature R of the reflector 110 is formed to be less than 50 mm, the reflected light is excessively concentrated only in the center, and if it exceeds 50 mm, the linearity of light is inferior. In addition, the shield 210 of the actuator 200 to be described later is rotatably installed on the reflector 110.

The lamp 130 provides a light source of the head lamp 1. The lamp 130 is a 25W HID low voltage emission lamp, a halogen lamp or an LED light source may be used.

The lens 120 may collect light by irradiating the light from the lamp 130 by reflecting the light reflected from the lamp 130 to the reflective surface (not shown) and spreading forward. The lens 120 is coupled and fixed by the lens holder 13, the lens holder 13 may be assembled to the reflector 110 to configure the appearance of the headlamp (1). The lens 120 is formed with a diameter D of 69 mm. If the diameter D is less than 69 mm, the width is too small. If the lens 120 is larger than 69 mm, the refractive index of the light is lowered and the light collection efficiency is lowered. In addition, the distance L between the lens 120 and the lamp 130 is preferably spaced apart by 90 mm in consideration of light collection and light efficiency.

FIG. 7 illustrates an actuator according to the present invention, wherein the actuator 200 is a device for driving a shield 210 for forming light provided from a lamp 130 in a predetermined beam pattern. That is, the actuator 200 includes a motor 23, an output gear 23a driven by the motor 23, a gear 210a meshed with and interlocked with the output gear 23a, and the gear ( Rotation shield 210 coupled to and secured to 210a.

Accordingly, when the motor 23 is driven, the output gear 23a is driven to rotate, and the gear 210a engaged thereto rotates to rotate the shield 210.

8 is a beam pattern generated by the lamp module 100 of the present invention configured as described above, it can be seen that a wider width and a longer irradiation distance than the prior art is secured, such a wide width and the irradiation distance is a road surface performance suitable for small and medium-sized cars To secure it.

FIG. 9 illustrates a pattern of a shield of the AFS headlamp and a road surface pattern according to the present invention. The shield 210 is removed as shown in FIG. 9 while the second shield 22 is removed from the actuator 200. By optimizing the rotation angle (80 degrees) for each mode and the cross section of the shield 210 in the front view, the beam pattern required for the small and medium-sized cars can be realized.

1: headlamp 10: lamp module
11 base plate 12 reflector
13 lens holder 14 lens
15 lamp 20 actuator
21: first shield 21a: first gear
22: second shield 22a: second gear
23: motor 23a: output gear
24: drive gear 100: lamp module
110: reflector 120: lens
130: lamp 200: actuator
210: Shield 210a: Gear

Claims (2)

In the adaptive headlamp assembly composed of small and medium-sized cars,
A base plate installed on the headlamp;
A reflecting mirror installed to rotate up, down, left and right in the base plate and having a curvature of 45 to 55 mm;
A 25 W HID lamp installed inside the reflector;
An aspherical lens spaced apart from the lamp by 80 to 100 mm and fixedly coupled to the front surface of the reflector and having a diameter of 60 to 80 mm; And
And an actuator configured to form the light provided by the lamp in a predetermined beam pattern.
The method according to claim 1,
The actuator includes an output gear driven by a motor;
A gear interlocked with the output gear; And
And a rotation shield coupled to the gear and rotating together with the gear.

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