CN-122015031-A - High-definition projection module of automobile lamp and automobile

Abstract

The invention relates to the technical field of automobile projection, and discloses an automobile lamp high-definition projection module and an automobile, wherein the automobile lamp high-definition projection module comprises a light source device, a lens assembly, a refractive prism assembly and a reflecting mirror assembly; the invention relates to a light source device, a lens component, a refractive prism component, a reflecting mirror component, a reflecting projection module and a lens component, wherein the light source device is fixed at the rear end of the lens component, the refractive prism component is arranged at the front end of the lens component, the refractive prism component can rotate forward and backward along the axial direction, the reflecting mirror component is arranged at the upper end of the front of the refractive prism component, the reflecting mirror component can turn up and down by 50 degrees along the X direction by taking the Y-direction horizontal axis as the axis, the reflecting mirror component can turn up by 20 degrees from the horizontal plane and turn down by 30 degrees from the horizontal plane.

Inventors

• ZHANG XIAOJING
• LI YONGHE

Assignees

• 中国第一汽车股份有限公司

Dates

Publication Date

20260512

Application Date

20260317

Claims (10)

1. 1. The high-definition projection module of the automobile lamp is characterized by comprising a light source device (1), a lens assembly (2), a refractive prism assembly (3) and a reflecting mirror assembly (4); the light source device (1) is fixed at the rear end of the lens assembly (2); the refraction prism component (3) is arranged at the front end of the lens component (2), and the refraction prism component (3) can rotate forward and backward along the axial direction; The reflecting mirror assembly (4) is arranged at the upper end in front of the refractive prism assembly (3), the reflecting mirror assembly (4) can be turned up and down by 50 degrees along X by taking a Y-direction horizontal axis as an axis, and the reflecting mirror assembly (4) can be turned up by 20 degrees from the horizontal plane and turned down by 30 degrees from the horizontal plane.
2. 2. The high-definition projection module of an automobile lamp according to claim 1, wherein the refraction prism assembly (3) comprises a prism (31) and at least one rotating motor (32), the circumferential side wall of the prism (31) is connected with an output shaft of the at least one rotating motor (32) in a meshed mode, and the rotating motor drives the prism to rotate forwards or reversely.
3. 3. The high-definition projection module of an automobile lamp according to claim 2, wherein the prism (31) is of a right trapezoid structure in an overall side view, an inclined surface (311) is arranged on the front end face of the prism (31) from one end side wall to the other end side wall, and an included angle between an extended line of the inclined surface of the prism (31) and an extended line of a plane at the rear end of the prism (31) is 10 degrees to 30 degrees.
4. 4.A high definition projection module of an automobile lamp according to claim 3, wherein the reflecting mirror assembly (4) comprises a plane reflecting mirror plate (41) and a horizontal rotating shaft (42) fixedly connected to the rear end of the plane reflecting mirror plate (41), and the plane reflecting mirror plate (41) can be turned up and down by 50 degrees by taking the horizontal rotating shaft (42) as an axis.
5. 5. The high-definition projection module of an automobile lamp according to claim 4, wherein the lens assembly (2) comprises a lens bracket (21), a lens barrel seat (22), a first lens seat (23), a second lens seat (24), a light-transmitting transition ring (25), a lens limiting ring (26), a light-collecting lens (27), a shaping lens (28) and a protective lens (29), the lens bracket (21) is limited and sleeved at the right end of the lens barrel seat (22), the light source device (1) is arranged at the rear end of the lens barrel seat (22) and fixedly connected with the lens bracket (21), the lens barrel seat (22) is integrally a cylindrical body, the inner wall of the cylindrical body is of a three-stage annular step spigot structure, a light-collecting lens (27) is limited and accommodated in the one-stage annular step spigot of the lower end of the lens barrel seat (22), the first lens seat (23) is limited and accommodated in the two-stage annular step spigot of the middle of the lens barrel seat (22), the upper end of the first lens seat (23) is limited and is in contact with the shaping lens (28), the two-stage annular step spigot of the upper end of the shaping lens seat (28) is in threaded connection with the two-stage annular step spigot of the upper end surface of the lens seat (25) and the light-transmitting transition ring (24) is limited in contact with the upper end surface of the upper end of the lens seat (24), the protection mirror (29) is arranged at the upper end of the second lens seat (24) and is accommodated at the opening of the upper end of the lens barrel seat (22), the side wall of the lens limiting ring (26) is screwed on the outer side wall of the upper end of the lens barrel seat (22), and the annular limiting part at the upper end of the lens limiting ring (26) is in limiting contact with the peripheral outer edge of the upper end face of the protection mirror (29).
6. 6. The high-definition projection module of an automobile lamp according to claim 5, wherein the condensing lens (27) is an ellipsoidal condensing lens, the shaping lens (28) is a biconvex positive lens, and the protecting lens (29) is a plano-convex positive lens.
7. 7. The high-definition projection module of an automobile lamp according to claim 6, wherein the lens support (21), the lens barrel seat (22), the first lens seat (23), the second lens seat (24) and the lens limiting ring (26) are made of die-cast aluminum or high-strength engineering plastics.
8. 8. The high-definition projection module of an automobile lamp according to claim 7, wherein the light source device (1) comprises a circuit board (11) and LED lamp beads (12) welded on the circuit board and arranged in a matrix, and the LED lamp beads can be respectively lightened under the control of a controller so as to form a light spot pattern with a required shape to irradiate to the ground in front.
9. 9. The high-definition projection module of the automobile lamp according to claim 8, wherein the circumference of the refraction prism assembly (3) and the circumference of the reflecting mirror assembly (4) are respectively matched with sleeves with corresponding apertures, and the sleeves of the refraction prism assembly (3) and the sleeves of the reflecting mirror assembly (4) are coaxially matched and butted.
10. 10. An automobile, characterized by comprising the automobile lamp high-definition projection module set according to any one of claims 1-9, wherein the automobile lamp high-definition projection module set is arranged at the front end of an automobile.

Description

High-definition projection module of automobile lamp and automobile Technical Field The invention relates to the technical field of automobile projection, in particular to an automobile lamp high-definition projection module and an automobile. Background With the development of automobile technology, the requirements on the automobile lamp technology are higher, more functions are given besides traditional illumination, such as the technical development of a ground sign projection module and an adaptive high beam module, the two requirements are applicable to different working conditions, namely the adaptive high beam module projects illumination patterns to the front of an automobile in a parallel light mode, illumination at a longer distance is provided for drivers, glare is avoided for the drivers of pedestrians and other vehicles, the ground sign projection module projects the illumination patterns to the ground in the front of the automobile, the ground sign projection module mainly works in low-speed and parking states, early warning signals such as vehicle steering and stopping are provided for the drivers of the pedestrians and other vehicles, and the ground sign projection module becomes a brand new human/vehicle, vehicle/vehicle information interaction channel. The two application scenes are different, the projection distance is different, the current solution is to adjust through a projection mould and a motor mode, but because the whole module is adjusted and rotated, a larger lens aperture adjustment space is needed, and therefore, a projection picture cannot be projected to an ideal range. Disclosure of Invention In order to solve the problems, the invention provides the high-definition projection module of the automobile lamp and the automobile, wherein the projection light and the pattern can be projected to the far ground or the near ground of the automobile along with the linear motion of the automobile or projected to one side of the automobile turning along with the turning motion of the automobile by combining the lens group, the refraction prism and the reflection mirror, the aperture of the reflection projection module is small, and the occupied space of the automobile is small. The invention provides a high-definition projection module of an automobile lamp, which comprises a light source device, a lens assembly, a refractive prism assembly and a reflecting mirror assembly, wherein the light source device is arranged on the lens assembly; the light source device is fixed at the rear end of the lens assembly, and provides transmitted light and forms a projection light spot pattern according to scene requirements; the lens component projects light rays or patterns to the front through collimation and focusing; The refraction prism assembly is arranged at the front end of the lens assembly, the refraction prism assembly can rotate forward and backward along the axial direction, the direction of emergent light rays or patterns of the lens assembly is changed through forward and backward rotation of the refraction prism, when a vehicle turns, the refraction prism can automatically rotate in a follow-up way, so that the emergent light rays irradiate to one side of the turning of the vehicle; The reflector assembly is arranged at the upper front end of the refraction prism assembly, the reflector assembly can be turned up and down by 50 degrees along the X direction (the X direction is the front-rear direction of the vehicle) by taking the horizontal axis of the Y direction (the Y direction is the left-right direction of the vehicle) as the axis, the reflector assembly can be turned up by 20 degrees from the horizontal plane and turned down by 30 degrees from the horizontal plane, the refraction prism assembly is arranged behind the reflector assembly, the horizontal rays of the lens assembly in the prior art are changed into refraction rays, the reflector assembly is matched with the up-down 50-degree small-angle turning of the reflector assembly, the aperture of the projection module can be realized without large because the reflector assembly is turned up in the small-angle, the projection module can be used for projecting the emergent rays of the head towards the head in a long distance parallel with the head by 20 degrees or projecting the emergent rays of the head towards the head position of about one meter by 50 degrees by turning down the reflector horizontal plane, and the problem that the aperture of the projection module is correspondingly increased because the reflector turning-up angle is large, and the equipment occupies the internal space of the head is solved. The refraction prism assembly comprises a prism and at least one rotating motor, the circumferential side wall of the prism is meshed with an output shaft of the at least one rotating motor, and the rotating motor drives the prism to rotate forward or backward, so that the emergent light of the prism can be respective