Self-adaptive high beam illumination module and vehicle lamp thereof

Abstract

The utility model discloses a self-adaptive high-beam illumination module and a car lamp thereof, and aims to overcome the defect that an existing adb adopts a shading or multi-lens mode to solve the problem of light channeling. The high beam lamp comprises a printed circuit board (PCB), a plurality of high beam lamp beads arranged on the PCB in an array mode, a first high beam lens and a second high beam lens, a controller arranged on the PCB or in communication connection with the PCB independently controls on-off of the high beam lamp beads, and a jump ring concentric with the first high beam lens is arranged on the first high beam lens. The thickness of the first high beam lens is gradually reduced from the center to the jump ring and forms an outwards-protruding convex hull, light emitted by the convex hull is refracted by the second high beam lens to generate a high beam light pattern, and when any high beam lamp bead is turned off, the high beam light pattern darkens at the corresponding position. A shielding structure is omitted, the light channeling problem is solved through the single lens, the structure of the illumination module is simplified, and the fault probability is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of vehicle lighting, more specifically, it relates to a self-adaptive high beam lighting module and vehicle lamp thereof. BACKGROUND

[0002] At present, with the development of automobile electronic technology, the safety and comfort of automobile are paid more and more attention, ADB (Adaptive Driving Beam) technology is used in automobile headlamp control, and the light distribution control device is used to prevent dazzling of the front vehicle or the reverse vehicle or the pedestrian in the front area of the vehicle, on the other hand, to improve the observation of the front area, and to improve the safety during driving. At present, the light source of the adaptive high beam is a high beam light source with many small pixel lamp beads, such as 84 pixels, 128 pixels, etc., as shown in the figure, each pixel lamp bead is responsible for a front illumination area, when there is a pedestrian or vehicle in the illumination area, the pixel lamp bead is turned off to prevent dazzling. Each pixel lamp bead is at the focal point position of the lens, so that the brightness of the pixel lamp bead illuminating the front area can be improved, and the light at the edge of the lens can be prevented from being reflected back due to the large incident angle, which will not interfere with the area illuminated by other pixel lamp beads. In order to solve the problem that the light source is too large, part of the light source is not at the focal point position of the lens, and the light is uncontrollable. Figure 1

[0003] Chinese patents CN201921931809.0 and CN202320239888.9 respectively propose an ADB adaptive high beam light high beam module structure and an adaptive high beam lens group and a car, as shown in Figure 2 and Figure 3 Each lamp bead pixel corresponds to a small lens boss, and a light shield or other structure to prevent light from straying is arranged between the bosses, which increases the difficulty of designing the ADB adaptive high beam. Utility model content

[0004] The utility model overcomes the deficiency that the existing ADB adopts light shielding or multi-lens to solve the problem of light straying, provides a self-adaptive high beam lighting module and vehicle lamp thereof, which cancels the shielding structure and adopts a single lens to solve the problem of light straying, simplifies the structure of the lighting module and reduces the failure probability.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0006] ​The adaptive high beam lighting module comprises a PCB board, a plurality of high beam lamp beads arranged in an array on the PCB board, a first high beam lens and a second high beam lens, a controller arranged on the PCB board or in communication connection with the PCB board and independently controlling the switching of each high beam lamp bead, and a jump ring concentric with the first high beam lens is arranged on the first high beam lens, the thickness of the first high beam lens gradually decreases from the center to the jump ring and forms a convex envelope, and the light emitted by the convex envelope is refracted by the second high beam lens to form a high beam light pattern, and when any high beam lamp bead is turned off, the high beam light pattern becomes dark at the corresponding position.

[0007] The PCB board is provided with a peripheral power supply circuit for each high beam lamp bead, and each peripheral power supply circuit works independently, so that the controller can control the switching of each high beam lamp bead, thereby realizing the basis of ADB control. In order to avoid the phenomenon that the area of the high beam light pattern corresponding to the high beam lamp bead to be turned off is irradiated by the adjacent high beam lamp bead (i.e. the light leakage phenomenon), thereby reducing the degree of darkening of the corresponding area, the jump ring is arranged on the first high beam lens, the thickness of the jump ring gradually increases from the center to the jump ring, the light projected onto the first high beam lens is refracted to the center, and the light from different high beam lamp beads is further deflected after being refracted by the second high beam lens, thereby controlling a region respectively, and the light generated by each high beam light source is approximately parallel light, and after a high beam lamp bead is turned off, the corresponding area of the high beam light pattern becomes dark.

[0008] As a preferred embodiment, a lens holder is further arranged between the first high beam lens and the second high beam lens, and the first high beam lens forms a transition ring from the jump ring to the outer edge, and the lens holder blocks the light emitted by the transition ring. When the light generated by the high beam lamp bead exits from the transition ring, it enters the lens holder to achieve blocking and avoid the light leakage phenomenon.

[0009] As a preferred embodiment, the lens holder is provided with a light passing hole for the light emitted by the convex envelope, and the cross-sectional area of the light passing hole gradually increases along the direction from the first high beam lens to the second high beam lens. The design of the light passing hole more finely screens the light and improves the light leakage phenomenon.

[0010] As a preferred embodiment, the first high beam lens and the second high beam lens are a rotary body, and the rotary body is provided with a central axis.

[0011] As a preferred embodiment, the array of high beam lamp beads is symmetrically arranged about the symmetry axis of the central axis in the height direction. In combination with the first high beam lens and the second high beam lens which are a rotary body as described above, the final high beam light pattern can be symmetric about the symmetry axis.

[0012] As preferred, the PCB board is provided with several high beam lamp bead layers along the height direction, and the high beam lamp bead layers are equidistantly arranged along the horizontal direction, wherein the number of high beam lamp beads in the lower high beam lamp bead layer is greater than that in the upper high beam lamp bead layer.

[0013] As preferred, the thickness of the transition ring is gradually increased from the jump ring to the outer edge.

[0014] As preferred, the thickness of the transition ring is gradually increased from the jump ring to the outer edge.

[0015] As preferred, the light generated by the high beam lamp beads is refracted by the first high beam lens and the second high beam lens and is parallelly emitted, the light generated by each high beam lamp bead is not coincident after being emitted from the second high beam lens, and the light generated by each high beam lamp bead is equidistantly arranged.

[0016] A car lamp comprises the adaptive high beam lighting module as described above.

[0017] Compared with the prior art, the car lamp has the following beneficial effects:

[0018] (1) The jump ring is arranged to shield stray light, and the first high beam lens and the second high beam lens are arranged to independently control a region by each high beam light source;

[0019] (2) The lens support is arranged to further shield stray light, thereby better avoiding the light leakage phenomenon. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a sectional view of the car lamp;

[0021] Figure 2 is a schematic view of the PCB board;

[0022] Figure 3 is a schematic view of the first high beam lens;

[0023] Figure 4 is a schematic view of the light pattern of the car lamp;

[0024] In the drawings:

[0025] high beam lamp bead 1, first high beam lens 2, second high beam lens 3, PCB board 4, convex hull 5, transition ring 6, lens support 7, light passing hole 8, jump ring 9. DETAILED DESCRIPTION

[0026] The present disclosure will be further described below in combination with the drawings and embodiments.

[0027] It should be noted that the following detailed description is illustrative and aims to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application pertains.

[0028] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0029] In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only relational terms determined for the convenience of describing the structural relationship of various components or elements of the present disclosure and do not specifically refer to any component or element in the present disclosure and should not be construed as a limitation to the present disclosure.

[0030] In the present disclosure, terms such as "fixed connection", "connected", "connected to" should be understood in a broad sense and may mean a fixed connection, an integral connection or a detachable connection; it may be directly connected or indirectly connected through an intermediate medium. For those related scientific research or technical personnel in the field, the specific meaning of the above terms in the present disclosure can be determined according to the specific situation and should not be construed as a limitation to the present disclosure.

[0031] Embodiment:

[0032] An adaptive high-beam lighting module, as shown in Figure 1 the figure, includes a PCB board 4, a plurality of high-beam lamp beads 1 arranged in an array on the PCB board 4, a first high-beam lens 2, and a second high-beam lens 3. The light generated by the high-beam lamp beads 1 is refracted by the first high-beam lens 2, and part of it is secondarily refracted by the second high-beam lens 3. The light generated by each high-beam lamp bead 1 is close to horizontal and does not overlap with each other according to its position on the PCB board 4. When the high-beam lamp bead 1 is turned off, the corresponding area of the high-beam light pattern becomes darker, thereby achieving ADB.

[0033] Specifically, a controller disposed on the PCB board 4 or communicatively connected to the PCB board 4 independently controls the on / off of each high-beam lamp bead 1.

[0034] As shown in Figure 3As shown, in order to shield stray light, a jump ring 9 concentric with the first high beam lens 2 is provided on the first high beam lens 2. The thickness of the first high beam lens 2 gradually decreases from the center to the jump ring 9 and forms a convex bulge 5 that bulges outward. The first high beam lens 2 forms a transition ring 6 from the jump ring 9 to the outer edge. The light emitted from the convex bulge 5 is refracted by the second high beam lens 3 to generate a high beam light pattern. When any high beam lamp bead 1 is turned off, the high beam light pattern becomes darker at the corresponding position.

[0035] In some embodiments, from the jump ring 9 to the outer edge, the thickness of the transition ring 6 is equal at each place; in other embodiments, from the jump ring 9 to the outer edge, the thickness of the transition ring 6 gradually increases.

[0036] Furthermore, a lens bracket 7 is also provided between the first high beam lens 2 and the second high beam lens 3. The lens bracket 7 blocks the light emitted from the transition ring 6. When the light generated by the high beam lamp bead 1 leaves the transition ring 6, it will enter the lens bracket 7 to achieve blocking and avoid light leakage.

[0037] Among them, the lens bracket 7 is provided with a light passing hole 8 for passing the light emitted from the convex bulge 5. Along the direction from the first high beam lens 2 to the second high beam lens 3, the cross-sectional area of the light passing hole 8 gradually increases. The design of the light passing hole 8 screens the light more precisely and improves the light leakage phenomenon.

[0038] Refer to Figure 2 As shown, the arrayed high beam lamp beads 1 are symmetrically arranged about the symmetry axis along the height direction passing through the central axis. This structure配合the aforementioned first high beam lens 2 and second high beam lens 3 in the form of a solid of revolution can achieve the symmetry of the final high beam light pattern about the symmetry axis. The PCB board 4 is provided with several layers of high beam lamp beads 1 along the height direction, and the high beam lamp beads 1 in each layer are equally spaced along the horizontal direction. Among them, the number of high beam lamp beads 1 in the lower layer of high beam lamp beads 1 is greater than that in the upper layer of high beam lamp beads 1. This structure can expand the width of the lower part of the light pattern and thus obtain a better lighting field of view.

[0039] Refer to Figure 4As shown, the PCB board 4 has a peripheral power supply circuit for each high beam lamp bead 1, and the peripheral power supply circuit works independently, so that the controller can control the switching of each high beam lamp bead 1, and realize the basis of ADB control. In order to avoid the corresponding high beam light type area of the closed high beam lamp bead 1 being irradiated by the adjacent high beam lamp bead 1 (i.e. the light leakage phenomenon), resulting in the decrease of the darkening degree of the corresponding area, a jump ring 9 is arranged on the first high beam lens 2, and the thickness of the jump ring 9 gradually increases from the center to the jump ring 9. The light projected on the first high beam lens 2 converges to the center through refraction, and the light from different high beam lamp beads 1 is further deflected after the refraction of the second high beam lens 3, and each high beam lamp bead 1 controls a region respectively, and the light generated by each high beam light source is approximately parallel light. After one high beam lamp bead 1 is closed, the corresponding area of the high beam light type is darkened. The light generated by the high beam lamp bead 1 is parallelly emitted after the refraction of the first high beam lens 2 and the second high beam lens 3, and the light generated by each high beam lamp bead 1 is not coincident after being emitted from the second high beam lens 3. The parameters of the lens are set to realize the above-mentioned characteristics, which can be realized by those skilled in the art. Since each high beam lamp bead 1 is arranged at equal intervals, the light type generated by each high beam lamp bead 1 is also arranged at equal intervals.

[0040] A vehicle lamp comprises the adaptive high beam illumination module as described above.

[0041] The above-mentioned embodiments are only the preferred schemes of the present application, and do not limit the present application in any form. Other variants and modifications can be made without departing from the technical scheme recited in the claims.

Claims

1. An adaptive high beam lighting module, characterized in that, The adaptive high beam lighting module comprises a PCB, a plurality of high beam lamp beads arranged on the PCB in an array, a first high beam lens, and a second high beam lens.

2. The adaptive high beam module according to claim 1, characterized in that The first high beam lens is provided with a jump ring concentric with the first high beam lens.

3. The adaptive high beam module according to claim 2, characterized in that The first high beam lens gradually decreases in thickness from the center to the jump ring and forms a convex bump that is convex outward.

4. The adaptive high beam module according to claim 1, wherein the light source is a light emitting diode (LED) light source. The light emitted by the convex bump is refracted by the second high beam lens to form a high beam light pattern.

5. The adaptive high beam module according to claim 4, characterized in that When any high beam lamp bead is turned off, the high beam light pattern becomes dark at the corresponding position.

6. The adaptive high beam module of claim 5, wherein the PCB board The first high beam lens forms a transition ring from the jump ring to the outer edge.

7. The adaptive high beam module of claim 1, wherein the light source is a laser diode. The lens holder is provided with a light passing hole for the light emitted by the convex bump.

8. The adaptive high beam module of claim 1, wherein the light source is a laser diode. The cross-sectional area of the light passing hole gradually increases along the direction from the first high beam lens to the second high beam lens.

9. The adaptive high beam module of claim 1, wherein the light source is a laser diode. The first high beam lens and the second high beam lens are both rotation bodies provided with a central axis.

10. A vehicle lamp characterized by The high beam lamp beads arranged in an array are symmetrically arranged about the central axis along the height direction. A plurality of high beam lamp bead layers are arranged along the height direction. The number of high beam lamp beads in the lower high beam lamp bead layers is greater than that in the upper high beam lamp bead layers. The thickness of the transition ring is uniform from the jump ring to the outer edge. The thickness of the transition ring gradually increases from the jump ring to the outer edge. The light emitted by the high beam lamp beads is refracted by the first high beam lens and the second high beam lens and is emitted in parallel. The adaptive high beam lighting module comprises a PCB, a plurality of high beam lamp beads arranged on the PCB in an array, a first high beam lens, and a second high beam lens.

Images