Flat ADB illuminating lamp structure

Abstract

The utility model provides a flattened ADB illuminating lamp structure. A first lens, a second lens and a third lens are sequentially arranged in the direction from near to far along a light source. The light-in surface I of the first lens is of a plane structure, and the light-out surface I of the first lens is of a continuous aspheric surface structure; a light-in surface II of the second lens is of an arc-shaped surface structure, and a light-out surface II of the second lens is of an aspheric surface structure; the light-in surface III of the third lens is of a plane structure, and the light-out surface III of the third lens is of an aspheric surface structure; light rays emitted by the LED lamp beads are collimated through the first lens, the collimated light rays enter the second lens to be collected for the second time, the collected light rays are collected again through the third lens to form a required light type, and the light rays are collimated for multiple times through the three lenses, so that even if the height of the three lenses is not larger than 30 mm, a good light collecting effect is achieved; and therefore, the requirement of the flat ADB illuminating lamp structure is met.

Description

Technical Field

[0001] The utility model relates to the technical field of ADB lighting, in particular to a flat ADB lighting structure. Background Art

[0002] The matrix module inside the ADB headlight is composed of multiple LEDs. The matrix chip turns each LED on and off and dims the duty cycle to control the brightness to meet different lighting needs. With the widespread application of ADB headlights, consumers have an increasing demand for ADB headlights with a flat appearance in recent years.

[0003] However, the longitudinal dimension of existing flat-structured ADB headlights generally cannot be less than 30 mm. This is because the focusing effect of the structural solution of its lens group is poor. Once it is less than 30 mm, the light diffusion is serious and cannot meet the driving lighting needs. Utility Model Content

[0004] In view of this, the problem to be solved by the present invention is to provide a flat ADB lighting structure.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A flat ADB lighting structure, wherein a first lens, a second lens, and a third lens are sequentially arranged along the direction of the light source from near to far;

[0007] The light incident surface I of the first lens is a planar structure, and the light exit surface I of the first lens is a continuous aspherical structure;

[0008] The light incident surface II of the second lens is an arcuate surface structure, and the light exit surface II of the second lens is an aspherical surface structure;

[0009] The light incident surface III of the third lens is a planar structure, and the light exit surface III of the third lens is an aspherical structure.

[0010] Vertical anti-light-channeling convex ridges are constructed between adjacent light incident surfaces I.

[0011] The first lens and the second lens are both arranged inside the lamp housing, and the light emitting surface II of the third lens is arranged outside the lamp housing.

[0012] The outer circumferences of the second lens and the third lens are both provided with clamping blocks, and the lamp housing is provided with clamping grooves matched with the clamping blocks.

[0013] The light source is an LED lamp bead, and the LED lamp bead is installed on a PCB board.

[0014] The lighting structure also includes a radiator, a first threaded platform is constructed on the heat dissipation plate of the radiator, the first lens and the PCB board are both provided with a first connecting through hole, and the first screw passes through the first connecting through hole and then connects to the first threaded platform.

[0015] Second connecting through holes are also provided at the four corners of the heat dissipation plate, a second threaded platform is constructed on the lamp housing, and a second screw passes through the second connecting through hole and then connects to the second threaded platform.

[0016] A U-shaped notch is provided between the second connecting through holes adjacent to each other in the longitudinal direction, and a clamping head adapted to the U-shaped notch is constructed on the lamp housing.

[0017] The advantages and positive effects of the utility model are:

[0018] The first lens, the second lens, and the third lens are arranged in sequence from near to far along the direction of the light source. The light emitted by the LED lamp bead is collimated by the first lens, and the collimated light enters the second lens for a second convergence. The converged light is converged again by the third lens to form the required light type. The three lenses are collimated multiple times, and even if the height of the three lenses is not higher than 30mm, it has a good focusing effect, thereby meeting the needs of the flat ADB lighting structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 is a structural diagram of the first lens, the second lens, and the third lens at the light exiting surface viewing angle;

[0021] Figure 2 is a structural diagram of the first lens, the second lens, and the third lens at the light incident surface viewing angle;

[0022] Figure 3 This is the structural diagram of the PCB board and LED lamp beads;

[0023] Figure 4 This is the structural diagram of the lamp housing and the radiator from the perspective of the light-emitting surface;

[0024] Figure 5 This is the structural diagram of the lamp housing connected to the radiator from the perspective of the light incident surface;

[0025] In the figure: a first lens 1, a light incident surface I11, a light emitting surface I12, an anti-light channeling convex ridge 13, a second lens 2, a light incident surface II21, a light emitting surface II22, a third lens 3, a light incident surface III31, a light emitting surface III32, a lamp housing 4, a clamping head 42, a clamping block 5, a clamping slot 51, an LED lamp bead 6, a PCB board 7, a heat sink 8, a heat sink 81, a first threaded platform 82, a notch 84, a first screw 91, and a second screw 92. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0029] like Figure 1 to Figure 2 As shown, the utility model provides a flat ADB lighting structure, in which a first lens 1, a second lens 2, and a third lens 3 are sequentially arranged along the direction of the light source from near to far;

[0030] The light incident surface I11 of the first lens 1 is a plane structure, and the light directly enters the first lens 1, so that the imaging pixel points of the light are clear. In this embodiment, the light sources are arranged in a double row in the longitudinal direction. Accordingly, the light exit surface I12 of the first lens 1 is a continuous aspheric structure, and the number of aspheric surfaces corresponds to the number of light sources, which can achieve a good focusing effect and can also perform the first collimation of the light.

[0031] The light incident surface II21 of the second lens 2 is an arc surface structure. Since the longitudinal height of the lamp structure is reduced, the light incident surface II21 adopts an arc surface design with a larger light incident area and angle, thereby improving the light incident efficiency, reducing the loss of light in the lateral direction, and accelerating the transmission of light. The light exit surface II22 of the second lens 2 is an aspherical surface structure, which can perform a second convergence on the light collimated by the first lens 1;

[0032] The light incident surface III31 of the third lens 3 is a plane structure. Although the light incident surface II21 with an arc surface structure can improve the light incident efficiency, it will cause the imaging pixel points to be too large and the brightness to be reduced. Therefore, the light incident surface III31 of the third lens 3 is designed to be a plane structure that can make the imaging pixel points of the light clearer, thereby compensating the second lens 2. The light exit surface III32 of the third lens 3 is an aspherical structure, which can converge the light collimated by the second lens 2 for the third time.

[0033] After test comparison, it was found that after the light source of the lighting structure was turned on, the light was converged and collimated by three lenses for three consecutive times to form the required light pattern. No serious light diffusion occurred, and the height of the three lenses was no more than 30mm.

[0034] like Figure 2 As shown, specifically, vertical anti-light-channeling convex ribs 13 are constructed between adjacent light incident surfaces I11, and the anti-light-channeling convex ribs 13 are used to prevent light channeling so that the light source evenly illuminates the corresponding part of the first lens 1.

[0035] like Figures 1 to 5 As shown, specifically, the first lens 1 and the second lens 2 are both arranged inside the lamp housing 4, and the light-emitting surface II22 of the third lens 3 is arranged outside the lamp housing 4; the lamp housing 4 is made of a completely opaque material to prevent external diffusion of light during transmission, so that all light can only be output from the third lens 3, thereby ensuring the brightness of the light output by the lighting structure.

[0036] Specifically, a block 5 is constructed on the outer circumferential surface of the second lens 2 and the third lens 3, and a slot 51 adapted to the block 5 is constructed on the lamp housing 4. The slot 51 can fix the second lens 2 and the third lens 3 on the one hand, and can also avoid the problem of light spots appearing when light illuminates the block 5 and is transmitted to adjacent lenses on the other hand.

[0037] Specifically, the light source is an LED lamp bead 6 , and the LED lamp bead 6 is mounted on a PCB board 7 .

[0038] Specifically, the lighting structure also includes a radiator 8, and a first threaded platform 82 is constructed on the heat dissipation plate 81 of the radiator 8. The first lens 1 and the PCB board 7 are both provided with a first connecting through hole. The first screw 91 passes through the first lens 1 and the first connecting through hole on the PCB board 7 in sequence and then connects to the first threaded platform 82, thereby achieving the fixation of the first lens 1 and the PCB board 7.

[0039] Specifically, the four corners of the heat dissipation plate 81 are provided with second connection holes, the lamp housing 4 is provided with a second threaded platform, and the second screw 92 passes through the second connection through hole and then connects to the second threaded platform;

[0040] Since the second lens 2 and the third lens 3 are fixed on the lamp housing 4, the relative positions of the first lens 1, the second lens 2 and the third lens 3 are fixed.

[0041] Furthermore, considering the large mass of the first lens 1 and the second lens 2, in the present embodiment, a U-shaped notch 84 is provided between the longitudinally adjacent second connecting through holes, and a clamping head 42 adapted to the U-shaped notch 84 is constructed on the lamp housing 4; after the clamping head 42 is clamped with the notch 84, it can disperse the pressure of the second threaded platform and provide auxiliary support to the lamp housing 4.

[0042] The working principle and working process of the utility model are as follows:

[0043] The light emitted by the LED lamp bead 6 is collimated by the first lens 1, and the collimated light enters the second lens 2 for a second convergence. The converged light is converged again by the third lens 3 to form a desired light pattern.

[0044] The above embodiments of the utility model are described in detail, but the above contents are only preferred embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of the utility model should still fall within the scope of this patent.

Claims

1. A flat ADB lighting structure, characterized in that: A first lens (1), a second lens (2), and a third lens (3) are arranged in sequence from near to far along the light source; The light incident surface I (11) of the first lens (1) is a planar structure, and the light exit surface I (12) of the first lens (1) is a continuous aspheric structure; The light incident surface II (21) of the second lens (2) is an arcuate surface structure, and the light exit surface II (22) of the second lens (2) is an aspherical surface structure; The light incident surface III (31) of the third lens (3) is a planar structure, and the light exit surface III (32) of the third lens (3) is an aspherical structure; Vertical anti-light-channeling convex ribs (13) are constructed between adjacent light incident surfaces I (11).

2. A flat ADB lighting structure according to claim 1, characterized in that: A clamping block (5) is constructed on the outer circumference of each of the second lens (2) and the third lens (3), and a clamping groove (51) adapted to the clamping block (5) is constructed on the lamp housing (4).

3. A flat ADB lighting structure according to claim 2, characterized in that: The light source is an LED lamp bead (6), and the LED lamp bead (6) is mounted on a PCB board (7).

4. The flat ADB lighting structure according to claim 3, characterized in that: The lighting structure also includes a heat sink (8), a first threaded platform (82) is constructed on a heat sink (81) of the heat sink (8), a first connecting through hole is provided on both the first lens (1) and the PCB board (7), and a first screw (91) is connected to the first threaded platform (82) after passing through the first connecting through hole.

5. The flat ADB lighting structure according to claim 4, characterized in that: Second connection through holes are also provided at the four corners of the heat dissipation plate (81), a second threaded platform is constructed on the lamp housing (4), and the second screw (92) passes through the second connection through hole and is connected to the second threaded platform.

6. The flat ADB lighting structure according to claim 5, characterized in that: A U-shaped notch (84) is provided between the second longitudinally adjacent connecting through holes, and a clamping head (42) adapted to the U-shaped notch (84) is configured on the lamp housing (4).

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