CN201145184Y

CN201145184Y - Projection lamp for automobile

Info

Publication number: CN201145184Y
Application number: CNU200720060388XU
Authority: CN
Inventors: 孙少珍
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-11-22
Filing date: 2007-11-22
Publication date: 2008-11-05
Anticipated expiration: 2017-11-22
Also published as: WO2009065286A1

Abstract

The utility model discloses a vehicle projecting lamp, which comprises a cambered reflector cup, a light source and a convex lens. An upper and lower beam shifter is arranged between the body of the lens and the cambered reflector cup. The vehicle projecting lamp is characterized in that a focus of a curvilinear equation of the cambered reflector cup is a first focus where the luminous point of the light source is positioned. The light rays of the light source are reflected by the reflector cup and focused on a second focus. The distance form the convex lens to the second focus is the focal length of the convex lens. A movable light baffle of the upper and lower beam shifter is positioned between the first focus and the second focus. The vehicle projecting lamp can obtain excellent light shape: part of the light rays emitted by the light source is baffled before being reflected to be focused on the second focus, so obvious dividing lines, also known as a lower beam, are formed; with the displacement of the movable baffle of the upper and lower beam shifter, the baffled light rays can be released, so an upper beam is obtained.

Description

A kind of vehicle projection light

Technical field

The present invention relates to a kind of car light, especially a kind of automobile-used projection head lamp.

Background technology

At present, front lamp of vehicle is an irradiation function of taking into account distance light and dipped beam, and its light distributing system design is very complicated.The headlamp of more existing vehicles is a projection lamp, include curved surface transmitting mirror, light source and convex lens, in order to form two kinds of different irradiates light shapes of distance light (high lamp) and dipped beam (low lamp), need between the lenticular body of car light and curved surface reflector, adopt the adjusting of the active catch mating plate of far and near light shifter to finish the conversion of long-and-short distant light, but how obtaining good luminous intensity distribution light shape, then is the problem that needs are considered.

Summary of the invention

The purpose of this utility model is to provide a kind of instant and near light luminous intensity distribution light shape good vehicle projection light.

The vehicle projection light of the utility model design, include curved surface reflector, light source and convex lens, between the lenticular body of car light and curved surface reflector, establish far and near light shifter, it is characterized in that: the focus of described curved surface reflector curvilinear equation is first focus, the luminous point of described light source is positioned on first focus, light source light focuses on by reflector reflection back and forms one second focus, the described convex lens and second focal length are one times of focal length of convex lens, and the active catch mating plate of described far and near light shifter is between first focus and second focus.

Advantage of the present utility model is to help obtaining good luminous intensity distribution light shape: a part of light was blocked by light barrier before the light that light source sends reflected the arrival second focus place through reflector, thereby formed tangible dead line, just low lamp; Operation by far and near light shifter makes the displacement of active catch mating plate, and the part light source that is covered discharges, and reaches the effect of high lamp.

Above-mentioned far and near light shifter is to establish a fixing distance light light barrier at the curved surface reflector, and an active catch mating plate is installed on the distance light light barrier by rotating shaft, and an electromagnetic driver is installed on the distance light light barrier; One linkage part, the magnetic core push rod of connection active catch mating plate and electromagnetic driver is equipped with back-moving spring on the magnetic core push rod.

When needs use high beam, the driver presses the power conversion switch, the coil electricity of electromagnetic driver, make the magnetic core push rod because of the magnetic energy that produced by coil influences, make it to be adsorbed and retreat, simultaneously also relatedly make linkage part stir the active catch mating plate to do packing up of rugosity along rotating shaft, at this moment, the no longer shading of active catch mating plate, the light beam of reflector blocks luminous intensity distribution by the distance light light barrier, realizes by the switching of dipped beam to distance light.When not needing to use high beam, the driver resets the power conversion switch, the coil blackout of electromagnetic driver, the magnetic core push rod moves outside under the effect of back-moving spring, simultaneously also relatedly make linkage part stir the active catch mating plate to do to reset activity along rotating shaft, the active catch mating plate blocks to meet the light shape requirement of dipped beam the reflector beam reflected with the distance light light barrier.

Further improvement as such scheme is characterized in that: each light barrier is near second focus, the folded light beam of distance light (Gao Guang) lamp of favourable like this and control reflector.

Description of drawings

Fig. 1 is the structural representation under the utility model dipped beam state;

Fig. 2 is the structural representation under the utility model high-beam condition;

Fig. 3 is a structure cutaway view of the present utility model;

Fig. 4 is a three-dimensional exploded view of the present utility model;

Fig. 5 is a distance light schematic diagram of the present utility model;

Fig. 6 is a dipped beam schematic diagram of the present utility model.

The specific embodiment

Referring to figs. 1 to Fig. 4, a kind of vehicle projection light, oval curved surface reflector 2, light source 1 and convex lens 3 are arranged, between the lenticular body of car light and curved surface reflector, establish far and near light shifter, the focus of described curved surface reflector curvilinear equation is first focus, the luminous point 11 of described light source is positioned on first focus, light source light focuses on by reflector reflection back and forms one second focus 12, the described convex lens and second focal length are one times of focal length of convex lens 3, and far and near light shifter is to establish a fixing distance light light barrier 4 at oval curved surface reflector 2; One active catch mating plate 5 is installed on the distance light light barrier 4 by rotating shaft 51, and there is a breach 41 (Fig. 2) the corresponding position that the active catch mating plate is installed of fixing distance light light barrier, and this breach is just blocked by the active catch mating plate during installation; One electromagnetic driver 6 is that this electromagnetic driver 6 is installed on the distance light light barrier 4 at coil 61 internal magnetic core push rods 62; One linkage part 7, the magnetic core push rod 62 of connection active catch mating plate 5 and electromagnetic driver is equipped with back-moving spring 8 on the magnetic core push rod 62.Each light barrier of described far and near light shifter and is positioned at the below (Fig. 5, Fig. 6) of first focus and the second focus line between first focus and second focus, help distance light (high lamp) light beam is carried out luminous intensity distribution.

With reference to figure 1, Fig. 2, Fig. 5 and Fig. 6, when needs use high beam, the driver presses the power conversion switch, and the coil electricity 61 of electromagnetic driver 6 makes magnetic core push rod 62 influence because of the magnetic energy that produced by coil, make it to be adsorbed and retreat, simultaneously also relatedly make linkage part 7 stir active catch mating plate 5 to make pack up (Fig. 2, Fig. 5) of rugosity along rotating shaft 51, at this moment, no longer shading of active catch mating plate 5, the light beam of reflector 2 blocks luminous intensity distribution by the distance light light barrier, realizes by the switching of dipped beam to distance light (high lamp).When not needing to use high beam, the driver resets the power conversion switch, the coil blackout of electromagnetic driver 6, magnetic core push rod 62 moves outside under the effect of back-moving spring 8, simultaneously also relatedly make linkage part 7 stir active catch mating plate 5 to do to reset activity along rotating shaft, active catch mating plate 5 requires (Fig. 1 and Fig. 6) with the light shape that distance light light barrier 4 blocks to meet dipped beam (low lamp) the reflector beam reflected.

Claims

1, a kind of vehicle projection light, include curved surface reflector, light source and convex lens, between the lenticular body of car light and curved surface reflector, establish far and near light shifter, it is characterized in that: the focus of described curved surface reflector curvilinear equation is first focus, the luminous point of described light source is positioned on first focus, light source light focuses on by reflector reflection back and forms one second focus, the described convex lens and second focal length are one times of focal length of convex lens, and the active catch mating plate of described far and near light shifter is between first focus and second focus.

2, a kind of vehicle projection light according to claim 1, it is characterized in that: described far and near light shifter is to establish a fixing distance light light barrier at the curved surface reflector, one active catch mating plate is installed on the distance light light barrier by rotating shaft, and an electromagnetic driver is installed on the distance light light barrier; One linkage part, the magnetic core push rod of connection active catch mating plate and electromagnetic driver is equipped with back-moving spring on the magnetic core push rod.

3, a kind of vehicle projection light according to claim 2 is characterized in that: there is a breach the corresponding position that the active catch mating plate is installed of described distance light light barrier, and this breach is blocked by the active catch mating plate during installation.

4, according to claim 1 or 2 or 3 described a kind of vehicle projection lights, it is characterized in that: each light barrier is near second focus.

5, according to claim 1 or 2 or 3 described a kind of vehicle projection lights, it is characterized in that: the curved surface reflector is oval curved surface glow cup.