Lens module, vehicle lamp and vehicle

Abstract

The utility model discloses a lens module, a vehicle lamp and a vehicle, the lens module has a preset direction, and the lens module comprises a first lens, a second lens and a light source; the first lens is provided with a low-beam part and a high-beam part, and the low-beam part and the high-beam part are arranged in the preset direction; the second lens is arranged on one side of the light incident surface of the low beam part; the two light sources are arranged at intervals in the preset direction and arranged on the side, away from the first lens, of the second lens. Light emitted by the group of light sources is refracted by the high-beam part and then forms a high-beam light shape on the side, away from the second lens, of the high-beam part; light emitted by the other group of light sources is refracted by the second lens and the low-beam part in sequence and then forms a low-beam light shape on the side, deviating from the second lens, of the low-beam part. The two different light sources are arranged and used for forming the low beam light shape and the high beam light shape correspondingly, one light source does not need to be shared, namely conversion of the high beam light and the low beam light does not need to be achieved through a shading plate, it can be guaranteed that part of energy exists below a cut-off line when the high beam light is used, and the road lighting effect is effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of vehicle lighting, in particular to a lens module, a vehicle lamp and a vehicle. BACKGROUND

[0002] In the optical module of an automobile headlamp, a lens is an extremely important optical element. In the prior art, a single focal point is used, i.e. a light source is used to form a low beam light pattern and a high beam light pattern, and a light shield is used to form a bright-dark cutoff line of the low beam, so that the low beam region and the high beam region are completely separated and have no overlapping part, and the road lighting performance of the vehicle lamp is poor.

[0003] Therefore, it is necessary to improve the prior art. CONTENT OF THE UTILITY MODEL

[0004] The present application aims to at least solve one of the technical problems existing in the prior art, and provides a lens module, a vehicle lamp and a vehicle.

[0005] According to an aspect of the present application, the present application provides a lens module having a preset direction, the lens module comprising a first lens, a second lens and a light source; the first lens has a low beam part and a high beam part, the low beam part and the high beam part being arranged along the preset direction; the second lens is arranged on one side of the light entrance surface of the low beam part; the light source is arranged in two groups in the preset direction, and the light source is arranged on the side of the second lens away from the first lens; wherein the light emitted by one group of the light source is refracted through the high beam part to form a high beam light pattern on the side of the high beam part away from the second lens; the light emitted by the other group of the light source is sequentially refracted through the second lens and the low beam part to form a low beam light pattern on the side of the low beam part away from the second lens.

[0006] In one embodiment, the second lens has a first light entrance surface and a first light exit surface arranged oppositely, the first light exit surface being arranged between the first light entrance surface and the first lens; the first light exit surface is a curved surface protruding towards the first lens, the first light entrance surface is a curved surface connected by a plurality of first cylindrical surfaces, the generatrix of the first cylindrical surface being parallel to the preset direction; in the direction from the high beam part to the low beam part, the thickness of the second lens gradually increases.

[0007] In one embodiment, the high beam part has a second light entrance surface and a second light exit surface arranged oppositely, the second light entrance surface being arranged between the second light exit surface and the light source used to form a high beam light pattern; the second light entrance surface is a curved surface connected by a plurality of second cylindrical surfaces, in the direction from the second lens to the low beam part, the distance between the end of the second cylindrical surface close to the low beam part and the second lens is greater than the distance between the end of the second cylindrical surface away from the low beam part and the second lens.

[0008] In one embodiment, the included angle between the two columnar generatrix and the intersection surface between the low beam part and the high beam part is α, and 60°≤α≤80° is satisfied.

[0009] In one embodiment, α=70°.

[0010] In one embodiment, the low beam part has a third light-incident surface and a third light-emitting surface arranged oppositely, and the third light-incident surface is arranged between the third light-emitting surface and the second lens; the third light-emitting surface and the second light-emitting surface form a smooth curved surface.

[0011] In one embodiment, the third light-incident surface is a plane, and the preset direction is parallel to the third light-incident surface.

[0012] According to another aspect of the present application, a vehicle lamp is provided, comprising the lens module as described above.

[0013] According to another aspect of the present application, a vehicle is provided, comprising the vehicle lamp as described above.

[0014] The present application has the following beneficial effects: by arranging two groups of different light sources, and the two groups of light sources are respectively used to form low beam light shapes and high beam light shapes, a light source does not need to be shared, i.e. the transformation of low beam and high beam does not need to be realized by a light shielding plate, and when the high beam is used, it can be ensured that there is also part of energy below the cutoff line, and the road lighting effect is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] The technical solutions and other beneficial effects of the present application will be apparent from the following detailed description of the specific embodiments of the present application with reference to the accompanying drawings.

[0016] Figure 1 is a schematic diagram of a lens module provided by an embodiment of the present application.

[0017] Figure 2 is a schematic diagram of another lens module provided by an embodiment of the present application.

[0018] Figure 3 is a three-dimensional schematic diagram of a first lens and a second lens provided by an embodiment of the present application.

[0019] Figure 4 is a schematic diagram of a high beam light shape in the prior art.

[0020] Figure 5 is a schematic diagram of a high beam light shape of the present application.

[0021] In the drawings:

[0022] 10, first lens; 11, low beam part; 111, third light entrance surface; 112, third light exit surface; 12, high beam part; 121, second light entrance surface; 1211, second cylindrical surface; 122, second light exit surface;

[0023] 20, second lens; 21, first light entrance surface; 211, first cylindrical surface; 22, first light exit surface;

[0024] 30, low beam area; 31, low beam focal point;

[0025] 40, high beam area; 41, high beam focal point. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0027] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "linking" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection or can communicate with each other; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] The lens module, vehicle lamp and vehicle in the present application will be described in detail below with reference to the drawings and specific embodiments.

[0029] In the prior art, a light source is used to form low beam light pattern and high beam light pattern, and a light shield plate is used to form the bright-dark cutoff line of low beam, so that the low beam area and the high beam area are completely separated and have no overlapping part, and the road lighting performance of the vehicle lamp is poor.

[0030] To solve the above technical problems, the embodiment of the present application provides a lens module having a preset direction, the lens module comprising a first lens, a second lens and a light source; the first lens has a low beam part and a high beam part, the low beam part and the high beam part are arranged along the preset direction; the second lens is arranged on the light-incident side of the low beam part; the light source is arranged in two groups along the preset direction, and the light source is arranged on the side of the second lens away from the first lens; wherein the light emitted by one group of the light source is refracted through the high beam part to form a high beam light shape on the side of the high beam part away from the second lens; the light emitted by the other group of the light source is sequentially refracted through the second lens and the low beam part to form a low beam light shape on the side of the low beam part away from the second lens.

[0031] By arranging two groups of different light sources, and the two groups of light sources are respectively used to form a low beam light shape and a high beam light shape, a common light source is not needed, that is, a light shield plate is not needed to realize the conversion of the low beam and the high beam, and when the high beam is used, it can be ensured that there is also part of energy below the cutoff line, thereby effectively improving the road lighting effect. Details are described below.

[0032] Referring to Figure 1 and Figure 3 In an embodiment, the lens module has a preset direction, and the lens module comprises a first lens 10, a second lens 20 and a light source; the first lens 10 has a low beam part 11 and a high beam part 12, the low beam part 11 and the high beam part 12 are arranged along the preset direction; the second lens 20 is arranged on the light-incident side of the low beam part 11; the light source is arranged in two groups along the preset direction, and the light source is arranged on the side of the second lens 20 away from the first lens 10; wherein the light emitted by one group of the light source is refracted through the high beam part 12 to form a high beam light shape on the side of the high beam part 12 away from the second lens 20; the light emitted by the other group of the light source is sequentially refracted through the second lens 20 and the low beam part 11 to form a low beam light shape on the side of the low beam part 11 away from the second lens 20.

[0033] By arranging two groups of different light sources, and the two groups of light sources are respectively used to form a low beam light shape and a high beam light shape, a common light source is not needed, that is, a light shield plate is not needed to realize the conversion of the low beam and the high beam, and when the high beam is used, it can be ensured that there is also part of energy below the cutoff line, thereby effectively improving the road lighting effect (as shown in Figure 5 The cutoff line is a bright-dark cutoff line formed by the light shield plate when the low beam is formed, and the low beam area 30 and the high beam area 40 are completely separated by the cutoff line, as shown in Figure 4 In the prior art, the cutoff line is formed by the light shield plate, and there is no lighting effect below the high beam area 40, which is not conducive to the road lighting effect of the vehicle lamp.

[0034] It should be noted that the preset direction can be any direction, and in the embodiment, the preset direction is Figure 1In the longitudinal direction of the viewing angle, the low beam 11 is arranged below the high beam 12; accordingly, two groups of light sources are provided above and below. In actual production, the specific position of the light source can be determined according to the headlight lighting requirements and the vehicle styling design. The two groups of light sources set separately can be better arranged.

[0035] See Figure 2 In some embodiments, the low beam area 30 is arranged above the high beam area 40 and is adjusted accordingly according to actual lighting requirements and vehicle styling design.

[0036] See Figure 1 In one embodiment, the second lens 20 has a first light incident surface 21 and a first light emitting surface 22 that are disposed opposite to each other. The first light emitting surface 22 is disposed between the first light incident surface 21 and the first lens 10. The first light emitting surface 22 is a curved surface convex toward the first lens 10, and the first light incident surface 21 is a curved surface connected by multiple first cylindrical surfaces 211 (such as Figure 3 in the direction from the high beam portion 12 toward the low beam portion 11, the thickness of the second lens 20 gradually increases, that is, the second lens 20 is narrow at the top and wide at the bottom.

[0037] It should be noted that the busbar of the first cylindrical surface 211 is parallel to a preset direction, which is a vertical direction in this embodiment. The first light-emitting surface 22 is a curved surface, and the opening of the curved surface is facing the lower right. Such a setting can ensure that the low beam focus 31 is as far away from the high beam focus 41 as possible (the low beam focus 31 is located below the high beam focus 41, and the low beam light source is close to the bottom of the low beam area 30), providing sufficient installation space for light sources (such as lamp beads, reflectors and other components) used to form low beam light shapes and high beam light shapes, while avoiding mutual interference between the two groups of light sources, effectively improving the lighting effect of the car lights.

[0038] See Figure 1 In one embodiment, the high beam portion 12 has a second light incident surface 121 and a second light emitting surface 122 disposed opposite to each other. The second light incident surface 121 is disposed between the second light emitting surface 122 and the light source for forming the high beam light shape; the second light incident surface 121 is a curved surface (such as Figure 3 As shown), in the direction from the second lens 20 toward the low beam portion 11, the distance between the end of the generatrix of the second cylindrical surface 1211 close to the low beam portion 11 and the second lens 20 is greater than the distance between the end of the generatrix of the second cylindrical surface 1211 away from the low beam portion 11 and the second lens 20, that is, the generatrix of the second cylindrical surface 1211 is inclined to the right.

[0039] The inclined arrangement of the generatrix of the second cylindrical surface 1211 ensures that the high beam focal point 41 is as far away from the low beam focal point 31 (the high beam focal point 41 is close to the upper side of the high beam area 40) as possible, provides sufficient installation space for the light sources used to form the low beam light pattern and the high beam light pattern, and can avoid mutual interference between the two groups of light sources, thereby effectively improving the illumination effect of the vehicle lamp.

[0040] Referring to Figure 1 In an embodiment, the included angle between the generatrix of the two cylindrical surfaces and the intersection surface of the low beam part 11 and the high beam part 12 is α, which satisfies 60°≤α≤80°, for example, 60°, 70°, 80°, etc. When the value range of α is less than 60°, the included angle between the low beam part 11 and the high beam part 12 is too small, which may cause the high beam part 12 to be damaged during the demolding of the first lens 10 and increase the difficulty of demolding. When the value range of α is greater than 80°, it is not conducive to the arrangement of the high beam focal point 41 position, which affects the illumination effect. Within this value range, the first lens 10 can be conveniently demolded while ensuring better illumination effect. The high beam focal point 41 has a moderate height, which does not occupy too much longitudinal space for the light source, is conducive to the arrangement of other components of the vehicle lamp, facilitates the flat design of the vehicle lamp, and can meet the diversified needs of modeling design.

[0041] Referring to Figure 1 In an embodiment, the low beam part 11 has a third light-incident surface 111 and a third light-emitting surface 112 arranged opposite to each other, and the third light-incident surface 111 is arranged between the third light-emitting surface 112 and the second lens 20. The third light-emitting surface 112 is connected with the second light-emitting surface 122 to form a smooth curved surface, i.e., the left side of the first lens 10 is a smooth curved surface.

[0042] Such an arrangement is conducive to the propagation of light and has better illumination effect. The connection of the smooth curved surface facilitates the demolding of the first lens 10 as a whole, improves the production efficiency, avoids damage during demolding of the first lens 10, improves the yield, and reduces the production cost. In addition, the smooth curved surface on the left side of the first lens 10 is an outward convex curved surface in this embodiment. In some embodiments, it can also be a curved surface of another form, which is more suitable for the specific modeling design of the vehicle lamp, and is not limited thereto.

[0043] In some embodiments, the third light-incident surface 111 is a plane, and the preset direction is parallel to the third light-incident surface 111. The third light-incident surface 111 arranged in a plane is conducive to mold processing and forming, improves the production efficiency, and is conducive to the demolding of the first lens 10.

[0044] On the other hand, the present application also relates to a vehicle lamp comprising any one of the lens modules described above.

[0045] On the other hand, the present application also relates to a vehicle comprising the vehicle lamp described above.

[0046] By adopting the technical scheme provided in the embodiments of the present application, two groups of different light sources are arranged, and the two groups of light sources are respectively used to form the low beam light shape and the high beam light shape, so that one light source does not need to be shared, that is, the light shield plate is not needed to realize the conversion between the low beam and the high beam, and when the high beam is used, it can be ensured that there is also part of energy below the cut-off line, so that the road lighting effect is effectively improved.

[0047] In each of the embodiments of the present application, the terms or descriptions of different embodiments are consistent and can be mutually referred to if there is no special description and logical conflict, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship. In the present application, "at least one" means one or more, and "multiple" means two or more.

[0048] It can be understood that the various numbers involved in the embodiments of the present application are only distinguished for convenience of description, and are not used to limit the scope of the embodiments of the present application. The size of the serial number of the above processes does not mean the execution order, and the execution order of the processes should be determined according to their functions and inherent logic.

[0049] The lens module, the vehicle lamp and the vehicle provided by the embodiments of the present application are described in detail above, and the principles and implementation manners of the present application are described by applying specific examples; the above embodiment descriptions are only used to help understand the present application and its core idea; meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manner and application range will be changed, and the above description should not be understood as limiting the present application.

Claims

1. A lens module, characterized in that: With a preset direction, the lens module includes A first lens having a low beam portion and a high beam portion, wherein the low beam portion and the high beam portion are arranged along the preset direction; a second lens, disposed on a light incident side of the low beam portion; as well as Two groups of light sources are provided at intervals along the preset direction, and the light sources are arranged on a side of the second lens away from the first lens; Among them, the light rays emitted by one group of the light sources are refracted by the high beam portion and form a high beam light shape on the side of the high beam portion away from the second lens; the light rays emitted by another group of the light sources are refracted by the second lens and the low beam portion in sequence and form a low beam light shape on the side of the low beam portion away from the second lens.

2. The lens module according to claim 1, wherein: The second lens has a first light incident surface and a first light emitting surface disposed opposite to each other, and the first light emitting surface is disposed between the first light incident surface and the first lens; The first light emitting surface is a curved surface convex toward the first lens, and the first light incident surface is a curved surface formed by connecting multiple segments of first cylindrical surfaces, wherein the generatrix of the first cylindrical surfaces is parallel to the preset direction; The thickness of the second lens gradually increases in a direction from the high beam portion toward the low beam portion.

3. The lens module according to claim 1, wherein: The high beam portion has a second light incident surface and a second light emitting surface disposed opposite to each other, wherein the second light incident surface is disposed between the second light emitting surface and the light source for forming a high beam light shape; The second light incident surface is a curved surface formed by connecting multiple sections of second cylindrical surfaces. In the direction from the second lens toward the low beam portion, the distance between the end of the generatrix of the second cylindrical surface close to the low beam portion and the second lens is greater than the distance between the end of the generatrix of the second cylindrical surface away from the low beam portion and the second lens.

4. The lens module according to claim 3, wherein: The included angle α between the generatrix of the two cylinders and the intersection surface of the low beam portion and the high beam portion satisfies the following: 60°≤α≤80°.

5. The lens module according to claim 4, wherein: α＝70°。 6. The lens module according to claim 3, wherein: The low beam portion has a third light incident surface and a third light emitting surface disposed opposite to each other, and the third light incident surface is disposed between the third light emitting surface and the second lens; The third light-emitting surface is connected to the second light-emitting surface to form a smooth curved surface.

7. The lens module according to claim 6, wherein: The third light incident surface is a plane, and the preset direction is parallel to the third light incident surface.

8. A vehicle lamp, characterized in that: Comprising the lens module as described in any one of claims 1 to 7.

9. A vehicle, characterized in that: Comprising the vehicle lamp as claimed in claim 8.

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