Vehicle lamp module and vehicle using same

Patent metadata

Field	Value
Publication number	US-11333313-B2
Application number	US-201917426354-A
Country	US
Kind code	B2
Filing date	Nov 12, 2019
Priority date	Feb 26, 2019
Publication date	May 17, 2022
Grant date	May 17, 2022

Abstract

A vehicle lamp module and a vehicle using same. The vehicle lamp module comprises: a low beam circuit board (1), a low beam reflector (2), a high beam circuit board (3), a high beam condenser (4), a heat radiator (5), a lens (6), a lens support (7), and a module support (8), wherein the low beam reflector (2) serves as an optical element for forming a low beam shape, and the high beam condenser (4) serves as an optical element for forming a high beam shape. The vehicle lamp module has a good light shape uniformity, good low beam visibility, good high beam lighting performance, and excellent heat dissipation performance. Moreover, the module has a relative simple structure, a light weight, a small volume, a low cost, and a good comprehensive performance.

First claim

What is claimed is:

1. A vehicle lamp module, comprising: a low beam reflector and a high beam condenser, wherein the low beam reflector serves as a primary optical element for a low beam, and the high beam condenser serves as a primary optical element for a high beam;
further comprising: a low beam circuit board provided with a low beam light source, a high beam circuit board provided with a high beam light source and a lens,
wherein the low beam circuit board is arranged at a position below the low beam reflector, and an optical center of the low beam light source on the low beam circuit board is located at a first focus position of the low beam reflector;
the high beam condenser is arranged at a position in front of the low beam circuit board, a light exiting surface of the high beam condenser is located at a second focus of the low beam reflector, a distance between a position of an upper side boundary of the light exiting surface of the high beam condenser and the second focus of the low beam reflector is less than or equal to 2 mm in a front-to-rear direction, and the upper side boundary of the light exiting surface of the high beam condenser is shaped like a low beam cut-off line, so as to be configured to intercept low-beam light to form a low-beam light pattern;
the lens is arranged at a position in front of the high beam condenser, and light emitted from the low beam light source is reflected by the low beam reflector and then is directed to the lens over the light exiting surface of the high beam condenser and refracted by the lens, so as to form a low-beam light pattern; and
light emitted from the high beam light source is refracted by the high beam condenser and then exits from the light exiting surface of the high beam condenser, and is directed to the lens and refracted by the lens, so as to form a high-beam light pattern.

2. The vehicle lamp module according to claim 1 , wherein the position of the upper side boundary of the light exiting surface of the high beam condenser and the second focus of the low beam reflector have therebetween a distance of zero in an optical axis direction of the lens.

3. The vehicle lamp module according to claim 1 , wherein the low beam reflector comprises an inner concave surface and an outer convex surface opposite to each other, wherein the inner concave surface is provided with a first reflecting surface region of the low beam reflector and a second reflecting surface region of the low beam reflector; a first focus of the first reflecting surface region of the low beam reflector is set at the optical center of the low beam light source, a second focus of the first reflecting surface region of the low beam reflector is set on the light exiting surface of the high beam condenser, and a distance between the position of the upper side boundary of the light exiting surface of the high beam condenser and the second focus of the first reflecting surface region of the low beam reflector is less than or equal to 2 mm in the front-to-rear direction;
light emitted from the low beam light source is reflected by the first reflecting surface region of the low beam reflector and then is directed to the lens over the light exiting surface of the high beam condenser and refracted by the lens, so as to form a first low-beam light pattern region; and
light emitted from the low beam light source is reflected by the second reflecting surface region of the low beam reflector and then is directed to the lens over the light exiting surface of the high beam condenser and refracted by the lens, so as to form a second low-beam light pattern region.

4. The vehicle lamp module according to claim 3 , wherein a side of the first reflecting surface region of the low beam reflector away from the second reflecting surface region of the low beam reflector extends to one edge of the low beam reflector, and a side of the second reflecting surface region of the low beam reflector away from the first reflecting surface region of the low beam reflector extends to the other opposite edge of the low beam reflector.

5. The vehicle lamp module according to claim 3 , wherein the first reflecting surface region of the low beam reflector is recessed in a direction toward the outer convex surface from the inner concave surface relative to the second reflecting surface region of the low beam reflector.

6. The vehicle lamp module according to claim 3 , wherein the first reflecting surface region of the low beam reflector is an elliptical surface, and the first reflecting surface region of the low beam reflector occupies 10% or less of a total area of the low beam reflector.

7. The vehicle lamp module according to claim 3 , wherein both surfaces of the first reflecting surface region of the low beam reflector and the second reflecting surface region of the low beam reflector are subjected to aluminizing treatment, with an aluminizing reflectivity greater than or equal to 0.8.

8. The vehicle lamp module according to claim 3 , wherein the first reflecting surface region of the low beam reflector is polished; and
the second reflecting surface region of the low beam reflector is not polished.

9. The vehicle lamp module according to claim 1 , wherein the low beam light source is provided with a light exiting surface, and an angle α less than or equal to 30° is formed between the light exiting surface and a horizontal plane.

10. The vehicle lamp module according to claim 9 , wherein the low beam light source comprises an LED.

11. The vehicle lamp module according to claim 1 , wherein an optical surface of the high beam condenser comprises a light condensing cup structure of the high beam condenser, a totally reflecting surface of the high beam condenser, an upper surface of the high beam condenser, and a light exiting surface of the high beam condenser, wherein the totally reflecting surface of the high beam condenser, the upper surface of the high beam condenser and the light exiting surface of the high beam condenser are connected in sequence; the light condensing cup structure of the high beam condenser is located on a lower side of the totally reflecting surface of the high beam condenser; the totally reflecting surface of the high beam condenser is inclined at an angle relative to the horizontal plane, wherein 30°≤an inclination angle≤60°; and the light exiting surface of the high beam condenser is an arcuate surface, and the light exiting surface of the high beam condenser is located in a circle having a diameter in a range of 30 mm≤the diameter≤200 mm; and
the light condensing cup structure of the high beam condenser comprises a reflecting surface of the light condensing cup structure of the high beam condenser, an inner refracting surface of the light condensing cup structure of the high beam condenser, and an inner central surface of the light condensing cup structure of the high beam condenser.

12. The vehicle lamp module according to claim 11 , wherein a groove is provided in a bottom of the light condensing cup structure of the high beam condenser, the reflecting surface of the light condensing cup structure of the high beam condenser is provided on an outer peripheral wall of the light condensing cup structure of the high beam condenser, the inner refracting surface of the light condensing cup structure of the high beam condenser is provided on a peripheral wall of the groove, and the inner central surface of the light condensing cup structure of the high beam condenser is provided on a bottom wall of the groove.

13. The vehicle lamp module according to claim 11 , wherein the high beam light source comprises an LED, and high beam light sources are provided in

Assignees

• Hasco Vision Tech Co Ltd

Inventors

• Zhu He
• Qiu Zhiping
• Li Cong

Classifications

• F21S41/336

  with discontinuity at the junction between adjacent areas · CPC title

• F21S41/63

  by acting on refractors, filters or transparent cover plates · CPC title

• F21W2102/13

  for high-beam region or low-beam region · CPC title

• F21S41/321

  the reflector being a surface of revolution or a planar surface, e.g. truncated · CPC title

• F21S41/255

  Lenses with a front view of circular or truncated circular outline · CPC title