Lens module and vehicle lamp

Abstract

The utility model relates to a lens, and discloses a lens module and an automobile lamp. The lens module comprises a high-beam lens (1) and a low-beam lens (2), a high-beam light outlet surface (11) and at least one high-beam light inlet surface (12) are formed on the high-beam lens (1), a low-beam light outlet surface (21) and at least one low-beam light inlet surface (22) are formed on the low-beam lens (2), the high-beam light outlet surface (11) is a concave curved surface, and the low-beam light outlet surface (21) is a plane or a convex curved surface. According to the lens module, the front-back size of a high beam system can be reduced, miniaturization of the high beam and low beam integrated vehicle lamp is achieved, the heat dissipation effect of the high beam light source can be guaranteed, and the service life of the high beam light source is prolonged.

Description

Technical Field

[0001] The utility model relates to a lens, in particular to a lens module. In addition, the utility model also relates to a vehicle lamp comprising the lens module. Background Art

[0002] In the field of automotive lighting technology, headlights are mainly used to illuminate the road ahead of the vehicle when the ambient light is insufficient during driving to ensure driving safety.

[0003] Due to the complex and diverse road and climate environments in which cars travel, in order to ensure that headlights can provide reliable lighting under various environmental conditions, current headlights usually include low beams and high beams. That is, high beams are used when the road is flat and there are no oncoming vehicles, so that the driver has a farther and wider field of vision, ensuring the safety of high-speed driving.

[0004] In the daily design process, the front and rear dimensions of the high beam system are generally longer than those of the low beam system, which is not conducive to the miniaturization of the high and low beam integrated headlights. It also reduces the heat dissipation area of ​​the radiator at the high beam light source and reduces the heat dissipation effect of the high beam part. Utility Model Content

[0005] One of the purposes of the utility model is to provide a lens module, which can reduce the front and rear dimensions of the high beam system, realize the miniaturization of the high and low beam integrated headlights, and can ensure the heat dissipation effect at the high beam light source, thereby extending the service life of the high beam light source.

[0006] The second purpose of the utility model is to provide a headlight, the lens module of which can reduce the front and rear dimensions of the high beam system, realize the miniaturization of the high and low beam integrated headlight, and can ensure the heat dissipation effect at the high beam light source, thereby extending the service life of the high beam light source.

[0007] In order to achieve the above-mentioned objectives, the first aspect of the utility model provides a lens module, including a high beam lens and a low beam lens, the high beam lens having a high beam light emitting surface and at least one high beam light incident surface, the low beam lens having a low beam light emitting surface and at least one low beam light incident surface, the high beam light emitting surface being an inner concave surface, and the low beam light emitting surface being a plane or an outer convex surface.

[0008] Preferably, the low beam light emitting surface is a plane.

[0009] Preferably, the high beam light emitting surface is a curved surface which is concave from both ends to the middle in the vertical direction.

[0010] Further preferably, the focal length of the high beam light emitting surface is 10-50 mm.

[0011] Preferably, the high beam light emitting surface comprises a splicing section, and the splicing section is a curved surface formed by splicing a plurality of splicing surfaces.

[0012] Further preferably, the width of the joint surface is greater than 0 mm and less than or equal to 1.5 mm.

[0013] Preferably, the high beam light emitting surface further includes at least one curved surface segment.

[0014] Further preferably, two curved surface segments are provided, and the two curved surface segments are located on both sides of the splicing segment.

[0015] Further preferably, the ratio of the total width of the curved surface segment to the width of the high beam light emitting surface is less than or equal to 0.5.

[0016] Preferably, a mounting structure is further included, and the high beam lens and the low beam lens are integrally formed.

[0017] Preferably, at least one three-zone light shape forming structure is arranged on the low-beam light emitting surface, and the three-zone light shape forming structure is arranged corresponding to at least part of the low-beam light source.

[0018] Preferably, the light emitting surface of the three-zone light shape forming structure is an inwardly concave curved surface or an outwardly convex curved surface.

[0019] A second aspect of the utility model provides a vehicle lamp, comprising the lens module described in the first aspect.

[0020] Through the above technical solution, the lens module of the utility model can reduce the distance between the high-beam light-emitting surface and the outer lens while ensuring that the focus of the high-beam light-emitting surface is placed near the focus of the outer lens by setting the high-beam light-emitting surface of the high-beam lens as an inner concave curved surface, thereby ensuring the high-beam effect while reducing the front and rear dimensions of the high-beam module, which is conducive to meeting the miniaturization requirements of the module. It can also increase the size of the radiator at the high-beam light source, ensure the heat dissipation effect of the high-beam module, and extend the service life of the high-beam light source.

[0021] Other advantages of the present invention and the technical effects of the preferred embodiments will be further described in the following specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is one of the views of a lens module according to a specific embodiment of the present invention;

[0023] Figure 2 This is the second view of a lens module according to a specific embodiment of the present invention;

[0024] Figure 3 This is a third view of a lens module according to a specific embodiment of the present invention;

[0025] Figure 4 This is a fourth view of a lens module according to a specific embodiment of the present invention;

[0026] Figure 5 It is an exploded view of a vehicle lamp according to a specific embodiment of the utility model.

[0027] Description of Reference Numerals

[0028] 1 High beam lens 2 Low beam lens

[0029] 3 Installation structure 4 Three-zone light shape forming structure

[0030] 5 Outer lens 6 Mounting bracket

[0031] 7 Radiator 8 Reflector unit

[0032] 9 Circuit Board

[0033] 11 High beam exit surface 12 High beam incident surface

[0034] 21 Low beam exit surface 22 Low beam incident surface

[0035] 111 joint surface 112 surface segment DETAILED DESCRIPTION

[0036] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation modes described herein are only used to illustrate and explain the present invention, and the protection scope of the present invention is not limited to the specific implementation modes described below.

[0037] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present utility model, unless otherwise specified, the directional words used, such as "above, below, left, right, front, and rear", generally refer to the positional relationship of the headlights during actual use. For example, when the headlights are set at the rear of a vehicle and emit light to the rear of the vehicle, the direction pointed by the front of the vehicle is the rear, and the direction pointed by the rear of the vehicle is the front, while "above", "below", "left", and "right" are positional relationships determined based on the positional relationship of "front" and "rear".

[0039] The basic implementation of the utility model provides a lens module, such as Figures 1 to 4 As shown, it includes a high beam lens 1 and a low beam lens 2. The high beam lens 1 is formed with a high beam light emitting surface 11 and at least one high beam light incident surface 12. The low beam lens 2 is formed with a low beam light emitting surface 21 and at least one low beam light incident surface 22. The high beam light emitting surface 11 is an inner concave surface, and the low beam light emitting surface 21 is a plane or an outer convex surface.

[0040] During use, the number of high beam incident surfaces 12 can be the same as the number of high beam light sources, and the high beam incident surfaces 12 are arranged correspondingly to the high beam light sources, and the number of low beam incident surfaces 22 can be the same as the number of low beam light sources, and the low beam incident surfaces 22 are arranged correspondingly to the low beam light sources. Both the high beam light emitting surface 11 and the low beam light emitting surface 21 can be arranged with one.

[0041] According to the utility model, the high beam light emitting surface 11 is set as a concave curved surface, which means that the high beam light emitting surface 11 is a curved surface that is concave toward the inside of the high beam lens 1 from the two sides or the four sides to the center area. The low beam light emitting surface 21 is set as a convex curved surface, which means that the low beam light emitting surface 21 is a curved surface that is convex toward the outside of the low beam lens 2 from the two sides or the four sides to the center area. The concave curved surface of the high beam light emitting surface 11 can be a complete curved surface, or it can be a quasi-curved surface formed by splicing multiple planes and / or curved surfaces. The low beam light emitting surface 21 can be a complete plane or a convex curved surface, or it can be a quasi-plane or quasi-curved surface formed by splicing multiple curved surfaces and / or planes. During the installation process, when the low beam light emitting surface 21 is a plane, there may be a situation where the plane is not perpendicular to the optical axis of the vehicle light system.

[0042] The lens module provided by the above basic implementation of the utility model can be used as the inner lens of the high and low beam integrated headlight, and can be arranged between the light source and the outer lens 5. Taking the high and low beam integrated headlight with a reflector in the low beam module as an example, the light emitted by the high beam light source enters the high beam lens 1 through the high beam light incident surface 12, and then is emitted through the high beam light emitting surface 11 and is emitted to the outer lens 5 to form the high beam light shape; the light emitted by the low beam light source is reflected by the reflector and then enters the low beam lens 2 through the low beam light incident surface 22, and then is emitted through the low beam light emitting surface 21 and is emitted to the outer lens 5 to form the low beam light shape.

[0043] The lens module provided by the above basic embodiment of the utility model, by setting the high beam light-emitting surface 11 of the high beam lens 1 as an inner concave curved surface, can reduce the distance between the high beam light-emitting surface 11 and the outer lens 5 while ensuring that the focus of the high beam light-emitting surface 11 is placed near the focus of the outer lens 5, thereby reducing the front and rear dimensions of the high beam module while ensuring the high beam effect, which is conducive to meeting the miniaturization requirements of the module. In addition, the size of the radiator 7 at the high beam light source can be increased to ensure the heat dissipation effect of the high beam module and extend the service life of the high beam light source.

[0044] In the lens module provided by the present invention, the low beam light emitting surface 21 can be a plane or a convex curved surface. As a relatively preferred embodiment of the present invention, the low beam light emitting surface 21 is a plane. It is possible to reduce the front and rear dimensions of the low beam module while ensuring the low beam effect, further realizing the miniaturization requirement of the module.

[0045] According to the present invention, the plane here refers to a plane or a quasi-plane.

[0046] The high beam incident surface 12 of the high beam lens 1 can be a convex curved surface, and the low beam incident surface 22 of the low beam lens 2 can also be a convex curved surface. The number of high beam incident surfaces 12 and low beam incident surfaces 22 can be determined according to actual conditions. When multiple high beam incident surfaces 12 and low beam incident surfaces 22 are provided, the surface shapes of the multiple high beam incident surfaces 12 can be consistent or inconsistent; the surface shapes of the multiple low beam incident surfaces 22 can be consistent or inconsistent. Figure 4 In the given embodiment, four high-beam light-entering surfaces 12 are provided, and six low-beam light-entering surfaces 22 are provided. The surface shapes of the four high-beam light-entering surfaces 12 are consistent, and at least one low-beam light-entering surface 22 is located in the middle area so as to make the light brightness in the middle area higher. The low-beam light-entering surfaces 22 located on both sides protrude from the other light-entering surfaces, and the thickness of the low-beam light-entering surfaces 22 located on both sides gradually decreases from one side of the low-beam light-entering surface 22 adjacent to it to the other side, so as to further improve the focusing effect and reduce the loss of the light source.

[0047] In a specific embodiment of the present invention, Figure 1 and Figure 3 As shown, the high beam light emitting surface 11 is a curved surface concave from both ends to the middle in the vertical direction z. Setting the high beam light emitting surface 11 as a curved surface concave from both ends to the middle in the vertical direction z can reduce the front and rear dimensions of the high beam module while achieving a better high and low beam connection effect.

[0048] In a specific embodiment of the present invention, the focal length of the high beam light emitting surface 11 is 10-50 mm. By controlling the focal length of the high beam light emitting surface 11 to 10-50 mm, the distance between the high beam lens 1 and the outer lens 5 can be close to the distance between the low beam lens 2 and the outer lens 5, thereby ensuring that the high beam lens 1 and the low beam lens 2 can be combined into one part, while reducing the number of parts and reducing the module cost. Moreover, by combining the high beam lens 1 and the low beam lens 2 into one part, it can be ensured that there is still enough size for the radiator 7 under the condition of the front and rear size restrictions of the system, thereby ensuring the heat dissipation effect of the system.

[0049] In a specific embodiment of the present invention, Figure 1 and Figure 3As shown, the high beam light emitting surface 11 includes a splicing section, and the splicing section is a curved surface formed by splicing a plurality of splicing surfaces 111. By using the curved surface formed by splicing a plurality of splicing surfaces 111 as the light emitting surface, the effect of diffusing the high beam light shape can be achieved. Preferably, the high beam light emitting surface 11 may also include at least one curved surface section 112. In actual use, a curved surface section 112 is arranged on a side of the splicing section close to the low beam light emitting surface 21. The splicing section is arranged as a curved surface formed by splicing a plurality of splicing surfaces 111. At the same time, at least one curved surface section 112 is arranged, so that the high beam light shape can be diffused while ensuring the high and low beam connection effect.

[0050] According to the present invention, the joint surface 111 can be a curved surface or a flat surface.

[0051] As a specific embodiment of the present invention, the width of the splicing surface 111 is greater than 0 mm and less than or equal to 1.5 mm. The width of the splicing surface 111 is the straight-line distance between the upper and lower sides. During the research process, it was found that controlling the width of the splicing surface 111 to be greater than 0 mm and less than or equal to 1.5 mm can ensure the maximum value of the high beam without affecting the connection effect between the high and low beams.

[0052] In a specific embodiment of the present invention, two curved segments 112 are provided, and the two curved segments 112 are located on both sides of the splicing segment. Placing the curved segments 112 on both sides of the splicing segment can further improve the high beam effect while ensuring the connection effect of the high and low beams, making the light in the upper and lower areas of the high beam more uniform, and thus making the brightness of the high beam shape more uniform.

[0053] In a specific embodiment of the present invention, the ratio of the total width of the curved segment 112 to the width of the high beam light emitting surface 11 is less than or equal to 0.5, preferably 0.2 to 0.5. Through the above arrangement, the brightness uniformity of the high beam light shape can be further improved while ensuring the high beam diffusion effect, and the high beam maximum value can also be ensured.

[0054] In a specific embodiment of the present invention, Figures 1 to 4 As shown, the lens module also includes a mounting structure 3, and the high beam lens 1 and the low beam lens 2 are integrally formed with the mounting structure 3 to connect other devices. By integrally forming the mounting structure 3, the high beam lens 1 and the low beam lens 2, the installation of the lens module can be facilitated, and the installation error caused by the front and rear displacement during the installation process can also be prevented, and the installation accuracy can be further improved. The mounting structure 3 can be a mounting frame, a mounting plate, etc. As a specific embodiment of the utility model, the mounting structure 3 is a mounting plate.

[0055] The mounting plate may also be provided with mounting holes for fixing the mounting plate. The mounting holes are arranged at the left and right ends of the mounting plate, which will not affect the transmission of light and can also better fix the low beam lens 2 and the high beam lens 1.

[0056] In a specific embodiment of the present invention, Figure 1 and Figure 3 As shown, at least one three-zone light shape forming structure 4 is provided on the low beam light emitting surface 21. The three-zone light shape forming structure 4 can be any structure that can form a three-zone light shape. By adding at least one three-zone light shape forming structure 4 to the low beam light emitting surface 21 (preferably a plane), the processing accuracy and the accuracy of the pattern position are higher than adding a curved surface to the curved surface to make the three-zone light shape forming structure 4, which is beneficial to ensure the processing accuracy of the curved surface in actual production. As a specific embodiment of the utility model, the light emitting surface of the three-zone light shape forming structure 4 is an inwardly concave curved surface or an outwardly convex curved surface. Specifically, the three-zone light shape forming structure 4 can be recessed in the low beam lens 2, or it can protrude outside the low beam lens 2. By setting the light emitting surface of the three-zone light shape forming structure 4 as an inwardly concave curved surface, the optical path of the light passing through this area is changed, so that the formed III zone light shape is easier to meet regulatory requirements.

[0057] Specifically, the light emitting surface of the three-zone light shape forming structure 4 is a curved surface that is concave from two sides or four sides to the central area toward the low beam incident surface 22. Preferably, it is a curved surface that is concave from two ends to the middle in the vertical direction z.

[0058] In a specific embodiment of the utility model, in the left and right directions, the three-zone light shape forming structure 4 is arranged corresponding to at least part of the low beam light source. For example, the three-zone light shape forming structure 4 is arranged corresponding to a plurality of low beam light sources located in the middle in the left and right directions. Preferably, the three-zone light shape forming structure 4 and the low beam light source are both in the same vertical plane passing through the optical axis or roughly corresponding in the left and right directions to ensure that the three-zone light shape has sufficient brightness, and at the same time, the brightness of the three-zone light shape is controlled by adjusting other directions. When only the low beam of the headlight is turned on, the three-zone light shape forming structure 4 can provide a light spot that is higher than the horizontal position of the low beam of the headlight, so that the driver of the vehicle can see road signs or pedestrians on the roadside clearly without affecting the driver of the oncoming vehicle, thereby improving driving safety.

[0059] As a relatively preferred embodiment of the present invention, a lens module is provided. Figures 1 to 4As shown, it includes a high beam lens 1, a low beam lens 2 and a mounting structure 3; the high beam lens 1, the low beam lens 2 and the mounting structure 3 are formed in one piece, and the mounting structure 3 is provided with mounting holes for connecting other devices; the low beam lens 2 is formed with a low beam light emitting surface 21 and at least one low beam light incident surface 22, the low beam light incident surface 22 is an outward convex surface, the low beam light emitting surface 21 is a plane or an outward convex surface, and at least one three-zone light shape forming structure 4 is provided on the low beam light emitting surface 21, the number of the three-zone light shape forming structures 4 is less than or equal to the number of the low beam light incident surface 22, and the three-zone light shape forming structures 4 are arranged corresponding to the low beam light source, and the three-zone light The light-emitting surface of the shaping structure 4 is a curved surface that is concave inwardly; the high beam light-entering surface 12 is a convex curved surface, and the high beam light-emitting surface 11 is a curved surface that is concave from both ends to the middle in the vertical direction z, and the focal length of the high beam light-emitting surface 11 is 10-50mm; the high beam light-emitting surface 11 includes a splicing section and two curved surface sections 112, the two curved surface sections 112 are respectively located on both sides of the splicing section, and the splicing section is a curved surface formed by splicing multiple splicing surfaces 111, and the width of the splicing surface 111 is greater than 0mm and less than or equal to 1.5mm, and the ratio of the total width of the curved surface section 112 to the width of the high beam light-emitting surface 11 is less than or equal to 0.5.

[0060] The lens module provided by the above preferred embodiment is conducive to making the distance between the high beam lens 1 and the outer lens 5 close to the distance between the low beam lens 2 and the outer lens 5, controlling the front and rear dimensions of the entire high and low beam integrated system, realizing the miniaturization requirements of the module, and ensuring that the high beam lens 1 and the low beam lens 2 are combined into a whole, reducing the number of parts and reducing the module cost. It can also ensure that the high beam light source has a sufficient heat sink 7 size while ensuring the front and rear dimensions of the entire high and low beam integrated system, ensuring the heat dissipation effect of the entire high and low beam integrated system. It can also ensure the connection effect of the high beam and the low beam while ensuring the high beam light shape and the low beam light shape.

[0061] In addition, the utility model also provides a vehicle lamp, which includes the above-mentioned lens module. The vehicle lamp has all the advantages of the above-mentioned lens module, which will not be described in detail here.

[0062] In a specific embodiment of the present invention, Figure 5As shown, it also includes a circuit board 9, a light source, a reflection unit 8, a mounting bracket 6, an outer lens 5 and a radiator 7. The circuit board 9 includes a low-beam circuit board and a high-beam circuit board, both of which are mounted on the radiator 7. The light source includes a low-beam light source installed on the low-beam circuit board and a high-beam light source installed on the high-beam circuit board. The reflection unit 8 includes a low-beam reflection unit 8 corresponding to the low-beam light source and a high-beam reflection unit corresponding to the high-beam light source. The outer lens 5 is connected to the lens module through the mounting bracket 6. The light emitted by the high-beam light source is reflected by the high-beam reflection unit and passes through the high-beam lens 1 and the outer lens 5 to form a high-beam light shape. The light reflected by the low-beam light source is reflected by the low-beam reflection unit and passes through the low-beam lens 2 and the outer lens 5 to form a low-beam light shape.

[0063] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0064] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0065] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A lens module, characterized in that: The invention comprises a high-beam lens (1) and a low-beam lens (2), wherein the high-beam lens (1) is formed with a high-beam light-emitting surface (11) and at least one high-beam light-entering surface (12), and the low-beam lens (2) is formed with a low-beam light-emitting surface (21) and at least one low-beam light-entering surface (22), wherein the high-beam light-emitting surface (11) is an inner concave curved surface, and the low-beam light-emitting surface (21) is a flat surface or an outer convex curved surface.

2. The lens module according to claim 1, characterized in that: The low beam light emitting surface (21) is a plane.

3. The lens module according to claim 1 or 2, characterized in that: The high beam light emitting surface (11) is a curved surface which is concave from both ends to the middle in the vertical direction (z).

4. The lens module according to claim 3, characterized in that: The focal length of the high beam light emitting surface (11) is 10-50 mm.

5. The lens module according to claim 3, characterized in that: The high beam light emitting surface (11) comprises a splicing section, and the splicing section is a curved surface formed by splicing a plurality of splicing surfaces (111).

6. The lens module according to claim 5, characterized in that: The width of the joint surface (111) is greater than 0 mm and less than or equal to 1.5 mm.

7. The lens module according to claim 5, characterized in that: The high beam light emitting surface (11) further comprises at least one curved surface segment (112).

8. The lens module according to claim 7, characterized in that: Two curved surface segments (112) are provided, and the two curved surface segments (112) are located on both sides of the splicing segment.

9. The lens module according to claim 8, characterized in that: The ratio of the total width of the curved surface segment (112) to the width of the high beam light emitting surface (11) is less than or equal to 0.

5.

10. The lens module according to claim 1 or 2, characterized in that: The high beam lens (1) and the low beam lens (2) are integrally formed.

11. The lens module according to claim 1 or 2, characterized in that: At least one three-zone light shape forming structure (4) is arranged on the low-beam light emitting surface (21), and the three-zone light shape forming structure (4) is arranged corresponding to at least part of the low-beam light source.

12. The lens module according to claim 11, characterized in that: The light emitting surface of the three-zone light shape forming structure (4) is an inwardly concave curved surface or an outwardly convex curved surface.

13. A vehicle lamp, characterized in that: A lens module comprising any one of claims 1 to 12.

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