A vehicle lens assembly with follow-up steering function and its working mode

Abstract

The present invention discloses a vehicle lens assembly with a follow-up steering function and its working mode, which relates to the technical field of automobile lamps, including a light source and an external lens, a deflection lens is further arranged between the light source and the external lens, and the light source is composed of a headlight light source, a right-turn auxiliary light source, and a left-turn auxiliary light source; the light beam emitted by the headlight light source is refracted by the deflection lens and the external lens in sequence to form a headlight spot; the light beam emitted by the right-turn auxiliary light source is refracted to the right half of the external lens through the left half of the deflection lens, and a right-turn auxiliary light spot is formed on the right side of the headlight spot; the light beam emitted by the left-turn auxiliary light source is refracted to the left half of the external lens through the right half of the deflection lens, and a left-turn auxiliary light spot is formed on the left side of the headlight spot. The present invention adds a deflection lens and a corresponding steering auxiliary light source on the basis of the original light source plus the external lens of the headlight, thereby realizing a vehicle lens assembly with follow-up steering that has a relatively simple structure and low cost.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile lamps, and in particular to a vehicle lens assembly with a follow-up steering function and a working mode thereof. Background Art

[0002] When a car is driving at night and encounters a turn, it is often necessary to use the steering assist light to find out the road conditions ahead in advance. There are generally two types of existing steering assist lights: the first is to add a light directly next to the headlight and light it up when needed; the second is to add a motor to make the headlight rotate. The first type of steering assist light is attached to a complete headlight, including a light source and a lens structure, which is very expensive; the second type of steering assist light is driven by a motor, so its response time is long, which poses certain risks to vehicles traveling at high speeds. Summary of the invention

[0003] The purpose of the present invention is to provide a vehicle lens assembly with a follow-up steering function. A deflection lens and a corresponding steering auxiliary light source are added to the original light source and external lens of the vehicle headlight, thereby realizing a vehicle lens assembly with follow-up steering that has a relatively simple structure and low cost.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A vehicle lens assembly with a follow-up steering function comprises a light source and an external lens, and is characterized in that a deflection lens is further arranged between the light source and the external lens, the light source consists of a headlight light source, a right-turn auxiliary light source located on the left side of the headlight light source, and a left-turn auxiliary light source located on the right side of the headlight light source; a light beam emitted by the headlight light source is refracted by the deflection lens and the external lens in sequence to form a headlight spot; a light beam emitted by the right-turn auxiliary light source is refracted by the left half of the deflection lens to the right half of the external lens, forming a right-turn auxiliary light spot on the right side of the headlight spot; a light beam emitted by the left-turn auxiliary light source is refracted by the right half of the deflection lens to the left half of the external lens, forming a left-turn auxiliary light spot on the left side of the headlight spot.

[0006] Furthermore, it also includes a circuit board, and the light source and the deflection lens are fixedly mounted on the circuit board.

[0007] Furthermore, it also includes a lens bracket, both sides of which are fixed to the circuit board by bolts, the middle part of the lens bracket is arched upward to form a chamber for accommodating the light source, and the deflection lens is installed at the arched part of the lens bracket and is located directly in front of the light source.

[0008] Furthermore, the lower end surfaces on both sides of the lens bracket are respectively provided with limiting posts, and corresponding positions on the circuit board are provided with limiting holes for inserting the limiting posts.

[0009] Furthermore, a heat sink is closely disposed on the back side of the circuit board, and the heat sink is composed of a heat dissipation substrate and a plurality of heat dissipation fins.

[0010] Furthermore, the heat sink is fixedly connected to the external lens via an isolation cover, both ends of the isolation cover are bent toward one side of the external lens and fixed to the external lens via bolts, and a through hole is provided in the middle of the isolation cover corresponding to the heat dissipation fins for the heat dissipation fins to pass through.

[0011] Furthermore, the circuit board, the heat sink and the isolation cover are fixed by bolts.

[0012] Furthermore, the deflection lens is a biconvex-convex lens.

[0013] Furthermore, the external lens is a plano-convex lens.

[0014] A working mode of a vehicle lens assembly with a follow-up steering function, characterized in that it includes the following three modes:

[0015] Normal mode: The light beam emitted by the headlight source is refracted in the middle of the deflection lens to achieve a primary beam reduction, and then refracted in the external lens to achieve a secondary beam reduction, and finally forms a headlight spot in front of the external lens;

[0016] Left turn mode: The light beam emitted by the left turn auxiliary light source is first refracted by the right half of the deflection lens and then deflected to the left half of the external lens, and then refracted by the left half of the external lens, and finally forms a left turn auxiliary light spot on the left side of the headlight spot;

[0017] In the right turn mode, the light beam emitted by the right turn auxiliary light source is first refracted by the left half of the deflection lens and then deflected to the right half of the external lens, and then refracted by the right half of the external lens, and finally forms a right turn auxiliary light spot on the right side of the headlight spot.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention reuses the external lens of the original vehicle headlight by adding a deflection lens and a steering auxiliary light source (including a left-turn auxiliary light source and a right-turn auxiliary light source) to the existing light source plus external lens structure; the light beam emitted by the steering auxiliary light source is incident on the opposite side of the external lens at a large angle of incidence after passing through the deflection lens, and finally emitted next to the original vehicle headlight spot to form an auxiliary light spot, which has the effect of widening the light spot, and is helpful for the car owner to pre-explore the road conditions ahead to be turned; and the present invention does not need to rely on the rotation of a motor to adjust the light angle, which speeds up the response speed, and the setting of the shared external lens also greatly reduces the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0020] Figure 2 It is a schematic diagram of the overall structure of another angle of an embodiment of the present invention;

[0021] Figure 3 A front view of an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the lens support structure according to an embodiment of the present invention;

[0023] Figure 5 A schematic diagram of a circuit board structure according to an embodiment of the present invention;

[0024] Figure 6 A schematic diagram of the structure of a heat sink according to an embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the isolation cover structure according to an embodiment of the present invention;

[0026] Figure 8 This is a schematic diagram of the optical path in the normal mode of the present invention;

[0027] Fig. 9 This is a light spot simulation diagram under the normal mode of the present invention;

[0028] Fig.10 A driving perspective simulation diagram in the normal mode of the present invention;

[0029] Fig.11 Schematic diagram of the optical path in the left turn mode of the present invention;

[0030] Fig.12 This is a light spot simulation diagram in the left turn mode of the present invention;

[0031] Fig.13 This is a driving perspective simulation diagram in the left turn mode of the present invention;

[0032] Fig.14 Schematic diagram of the optical path in the right turn mode of the present invention;

[0033] Fig.15 This is a light spot simulation diagram in the right turn mode of the present invention;

[0034] Fig.16 This is a driving perspective simulation diagram in the right turn mode of the present invention.

[0035] In the figure: 1-light source; 11-headlight light source; 12-right turn auxiliary light source; 13-left turn auxiliary light source; 2-external lens; 3-deflection lens; 4-circuit board; 41-bolt hole; 42-limiting hole; 5-lens bracket; 51-bolt hole; 52-limiting column; 53-chamber; 6-radiator; 61-cooling fin; 62-bolt hole; 7-isolation cover; 71-perforation; 72-connecting rod; 73-bolt hole. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figures 1 to 3 The present invention provides a vehicle lens assembly with a follow-up steering function, comprising a light source 1 and an external lens 2, wherein a deflection lens 3 is further arranged between the light source 1 and the external lens 2, wherein the light source 1 is composed of a headlight light source 11, a right-turn auxiliary light source 12 located on the left side of the headlight light source 11, and a left-turn auxiliary light source 13 located on the right side of the headlight light source 11, wherein the headlight light source 11, the right-turn auxiliary light source 12, and the left-turn auxiliary light source 13 are all LED lamp beads. The external lens 2 is a bilaterally symmetrical plano-convex lens, and the deflection lens 3 is a bilaterally symmetrical biconvex-convex lens. The center lines of the external lens 2 and the deflection lens 3 coincide, and the curvatures of the two convex surfaces of the deflection lens 3 are 0.05 to 0.5. The headlight light source 11 is located directly behind the deflection lens 3, i.e., on its center line, the right-turn auxiliary light source 12 is located behind the left half of the deflection lens 3, and the left-turn auxiliary light source 13 is located behind the right half of the deflection lens 3. The external lens 2 and the deflection lens 3 are made of colorless, transparent and light-transmitting materials, such as PC, PMMA and the like.

[0038] The light beam emitted by the headlight source 11 is refracted by the deflection lens and the external lens in sequence to complete the light distribution, forming the following Fig. 9 The headlight spot shown in the figure includes a low beam spot and a high beam spot. The light distribution performance meets the light distribution requirements of ECE R113 CLASS B, ECE R113 CLASS C, ECE R113 CLASS D, ECE R113 CLASS E and GB19152-2016. The low beam and high beam cut-off lines are clear and not dazzling. The light beam emitted by the right turn auxiliary light source 12 is first refracted by the left half of the deflection lens 3 to the right half of the external lens 2, forming a right turn auxiliary light spot on the right side of the headlight spot. The overall light spot is as shown in FIG. Fig.15 As shown, compared to Fig. 9 The light spot is widened to the right, which is helpful for the car owner to detect the road conditions in front of the right in advance; the light beam emitted by the left-turn auxiliary light source 13 is refracted by the right half of the deflection lens 3 to the left half of the external lens 2, forming a left-turn auxiliary light spot on the left side of the headlight spot. The overall light spot is as shown in FIG. Fig.12 As shown, compared to Fig. 9 The light spot is widened to the left, which is helpful for the car owner to detect the road conditions in front of the left in advance.

[0039] Please refer to Figure 4 In order to achieve fixed installation of the deflection lens 3, a lens bracket 5 is also included. Bolt holes 51 are vertically arranged on both sides of the lens bracket 5. The bolt holes 51 are used for bolts to pass through to achieve fixation. The middle part of the lens bracket 5 is arched upward to form a chamber 53 for accommodating the light source. The deflection lens 3 is installed at the arched part of the lens bracket 5 and is located directly in front of the light source.

[0040] In order to realize the driving of the light source and the fixed installation of the lens bracket 5, a circuit board 4 is also included. Please refer to Figure 5 , the right-turn auxiliary light source 12, the headlight light source 11, and the left-turn auxiliary light source 13 are arranged in sequence in the middle position of the circuit board 4, and the circuit board is provided with an LED driving circuit for driving the right-turn auxiliary light source 12, the headlight light source 11, and the left-turn auxiliary light source 13 to light up. A bolt hole 41 is provided on the circuit board 4 at a position corresponding to the bolt hole 51 of the lens bracket 5; when fixing the lens bracket 5, it is only necessary to pass the bolt through the bolt hole 51 and the bolt hole 41 in sequence. For the deflection lens 3, the accuracy of its position directly leads to the shape of the emitted light spot. There is a certain gap between the bolt hole and the bolt, which may not guarantee the accuracy of the position installation. In order to ensure the accuracy of its installation position, limiting posts 52 are respectively provided on the lower end faces of both sides of the lens bracket 5, and limiting holes 42 for inserting the limiting posts 52 are provided at corresponding positions on the circuit board 4. The limiting posts 52 and the limiting holes 42 are tightly matched, and the gap is small enough to ensure the accuracy of the position of the deflection lens 3.

[0041] In order to ensure the normal operation of the circuit board 4, a heat sink 6 is closely arranged on the back of the circuit board 4. Figure 6 The heat sink 6 is composed of a heat sink substrate close to the circuit board 4 and a plurality of heat sink fins 61 on the heat sink substrate, and the heat sink fins 61 are arranged vertically to the heat sink substrate. In order to fix the heat sink, bolt holes 62 corresponding to the bolt holes 41 are arranged on the heat sink substrate.

[0042] In order to achieve fixed installation of the heat sink 6 and the external lens 2, the heat sink 6 is fixedly connected to the external lens 2 via the isolation cover 7. Figure 7The two ends of the isolation cover 7 are bent toward one side of the external lens 2 and fixed to the external lens by bolts. The middle part of the isolation cover 2 is provided with a through hole 71 corresponding to the heat dissipation fin for the heat dissipation fin 61 to pass through. In this embodiment, the number of the through holes 71 is two, separated by a connecting rod 72 in the middle, and the connecting rod 72 is also provided with a bolt hole 73 corresponding to the bolt hole 41. During installation, the lens bracket 5, the circuit board 4, the radiator 6 and the isolation cover can be fixed by passing the bolts through the bolt hole 51, the bolt hole 41, the bolt hole 62 and the bolt hole 73 in sequence. It is worth mentioning that the isolation cover 7 is made of an insulating material, such as polyethylene foam plastic, which can isolate the temperature of the radiator 6 and prevent its high temperature from affecting the performance of the external lens 2.

[0043] The present invention also provides a working mode of a vehicle lens assembly with a follow-up steering function. During the driving process of a car, general movement modes include forward, backward, left turn and right turn. When the car is moving forward and backward, no assistance of the steering auxiliary light source is required, which is a normal mode; when the car is turning left, the left turn auxiliary light source is assisted, which is a left turn mode; when the car is turning right, the right turn auxiliary light source is assisted, which is a right turn mode.

[0044] Normal mode: Please refer to Figure 8 The light beam emitted by the headlight source is refracted in the middle of the deflection lens to achieve a primary beam reduction, and then refracted in the external lens to achieve a secondary beam reduction, and finally forms a beam in front of the external lens as shown in the figure. Fig. 9 The headlight spots shown are as follows: Fig.10 The figure shows the driving perspective in normal mode. Under the influence of the headlight spot of the vehicle, the size of the light spot is sufficient to ensure normal driving.

[0045] Left turn mode: When turning left, in addition to the normal operation of the headlights, the left turn auxiliary light source is also on. Fig.11 The light beam emitted by the left-turn auxiliary light source (the thick line in the figure) is first refracted by the right half of the deflection lens and then deflected to the left half of the external lens, and then refracted by the left half of the external lens, and finally forms a piece of light on the left side of the headlight spot. Fig.12 The left-turn auxiliary light spot shown is equivalent to widening the width of the original headlight spot to the left, such as Fig.13 The figure shows the driving angle in left-turn mode. With the headlight spot and the left-turn auxiliary light spot, the road condition in front of the left can be seen clearly. In this process, the deflection lens makes the light beam emitted by the left-turn auxiliary light source deflect at a sufficiently large angle, and finally reaches the light spot width that was not achievable before.

[0046] Right turn mode: When turning right, in addition to the normal operation of the headlights, the right turn auxiliary light source is also on. Fig.14The light beam emitted by the right-turn auxiliary light source (the thick line in the figure) is first refracted by the left half of the deflection lens and then deflected to the right half of the external lens, and then refracted by the right half of the external lens, and finally forms a piece on the right side of the headlight spot. Fig.15 The right-turn auxiliary light spot shown is equivalent to widening the width of the original headlight spot to the right, such as Fig.13 The figure shows the driving angle in right turn mode. With the help of the headlight spot and the right turn auxiliary spot, the road conditions in front of the right can be seen clearly. In this process, the deflection lens plays the same role as in left turn mode.

[0047] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A vehicle lens assembly with a follow-up steering function, comprising a light source and an external lens, characterized in that: A deflection lens is also arranged between the light source and the external lens, and the light source consists of a headlight light source, a right-turn auxiliary light source located on the left side of the headlight light source, and a left-turn auxiliary light source located on the right side of the headlight light source; the light beam emitted by the headlight light source is refracted by the deflection lens and the external lens in sequence to form a headlight spot; the light beam emitted by the right-turn auxiliary light source is refracted by the left half of the deflection lens to the right half of the external lens, forming a right-turn auxiliary light spot on the right side of the headlight spot; the light beam emitted by the left-turn auxiliary light source is refracted by the right half of the deflection lens to the left half of the external lens, forming a left-turn auxiliary light spot on the left side of the headlight spot; It also includes a circuit board, the light source and the deflection lens are fixedly mounted on the circuit board; it also includes a lens bracket, the two sides of the lens bracket are fixed to the circuit board by bolts, the middle part of the lens bracket is arched upward to form a chamber for accommodating the light source, and the deflection lens is installed at the arched part of the lens bracket and is located directly in front of the light source; The deflection lens is a double convex lens; the curvature of the two convex surfaces of the deflection lens is 0.05 to 0.5; The auxiliary light spot has a near bright and dark cut-off line.

2. The vehicle lens assembly with follow-up steering function according to claim 1, characterized in that: Limiting posts are respectively arranged on the lower end surfaces of both sides of the lens bracket, and limiting holes for inserting the limiting posts are arranged at corresponding positions on the circuit board.

3. The vehicle lens assembly with follow-up steering function according to claim 1, characterized in that: A radiator is closely arranged on the back side of the circuit board, and the radiator consists of a heat dissipation substrate and a plurality of heat dissipation fins.

4. The vehicle lens assembly with follow-up steering function according to claim 3, characterized in that: The radiator is fixedly connected to the external lens via an isolation cover, both ends of the isolation cover are bent toward one side of the external lens and fixed to the external lens via bolts, and a through hole is arranged in the middle of the isolation cover corresponding to the heat dissipation fins for the heat dissipation fins to pass through.

5. The vehicle lens assembly with follow-up steering function according to claim 4, characterized in that: The circuit board, the radiator and the isolation cover are fixed by bolts.

6. The vehicle lens assembly with follow-up steering function according to claim 1, characterized in that: The external lens is a plano-convex lens.

7. The working mode of the vehicle lens assembly with follow-up steering function according to any one of claims 1 to 6 is characterized in that: It includes the following three modes: Normal mode: The light beam emitted by the headlight source is refracted in the middle of the deflection lens to achieve a primary beam reduction, and then refracted in the external lens to achieve a secondary beam reduction, and finally forms a headlight spot in front of the external lens; Left turn mode: The light beam emitted by the left turn auxiliary light source is first refracted by the right half of the deflection lens and then deflected to the left half of the external lens, and then refracted by the left half of the external lens, and finally forms a left turn auxiliary light spot on the left side of the headlight spot; In the right turn mode, the light beam emitted by the right turn auxiliary light source is first refracted by the left half of the deflection lens and then deflected to the right half of the external lens, and then refracted by the right half of the external lens, and finally forms a right turn auxiliary light spot on the right side of the headlight spot.

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