High-beam and low-beam illumination module and vehicle lamp

Abstract

The utility model relates to a high-beam and low-beam illumination module and a vehicle lamp. The module comprises a main lens and a lamp bead set, the main lens comprises a front convex lens, a panel and a cup-shaped total-reflection lens which are integrally formed, the panel is arranged between the front convex lens and the total-reflection lens, and the front convex lens is arranged in the middle of the front end face of the panel; an eccentric groove is formed in the rear end of the total reflection lens and located right behind the front convex lens, the groove bottom of the eccentric groove is a first incident plane in a convex lens shape, and the inner side wall of the eccentric groove is a second incident plane. The lamp bead set is arranged on the lower portion of an opening of the eccentric groove and faces the interior of the eccentric groove, one part of light of the lamp bead set is refracted out of the outside from the front convex lens after being refracted by the first incident face in sequence, and the other part of light of the lamp bead set is refracted out of the outside from the panel part on the periphery of the front convex lens after being refracted by the second incident face and reflected by the total reflection lens. According to the technical scheme, light rays are more converged, dazzling caused by scattering of the automobile lamp is reduced, and the driving safety is improved.

Description

Technical Field

[0001] This application relates to the field of bicycle lighting technology, and more specifically to a high and low beam lighting module and bicycle light. Background Technology

[0002] Bicycles are a common mode of transportation in daily life. When riding bicycles at night, headlights are needed to illuminate the road and improve visibility. Inventors discovered during their research that bicycle headlights typically use reflectors or TIR lenses (total internal reflection lenses) to reflect light from the source, which then passes through a front lens with a microlens array before being projected outwards. As a result, most of the emitted light is scattered and does not converge, causing the light from bicycle headlights to dazzle oncoming drivers, which is detrimental to driving safety and requires improvement. Utility Model Content

[0003] The purpose of this application is to overcome the above-mentioned shortcomings of the prior art and provide a high and low beam lighting module and vehicle headlights to converge light and reduce glare.

[0004] To achieve the above objectives, this application adopts the following technical solution: a high and low beam lighting module, comprising a main lens and an LED assembly. The main lens includes an integrally formed convex lens, a panel, and a cup-shaped total internal reflection lens. The panel is disposed between the convex lens and the total internal reflection lens, with the convex lens located in the middle of the front end face of the panel. An eccentric groove is provided at the rear end of the total internal reflection lens, which is located directly behind the convex lens. The bottom of the eccentric groove is a first incident surface in the shape of a convex lens, and the inner sidewall of the eccentric groove is a second incident surface. The LED assembly is disposed below the opening of the eccentric groove and faces the inside of the eccentric groove. A portion of the light from the LED assembly is refracted sequentially through the first incident surface and then refracted out through the convex lens to the outside. Another portion of the light from the LED assembly is refracted through the second incident surface and then reflected by the total internal reflection lens before being emitted out through the panel portion around the convex lens to the outside.

[0005] In an optional configuration, in the vertical cross-section, the distance between the top of the second incident surface and the central axis of the total internal reflection lens is greater than the distance between the bottom of the second incident surface and the central axis of the total internal reflection lens. The inner diameter of the eccentric groove gradually decreases from the opening to the bottom of the groove. In the cross-section, the first incident surface is convex, and the curvature of the convex lens is less than the curvature of the first incident surface. In the vertical cross-section, the distance between the apex of the first incident surface and the panel is less than the distance between the bottom point of the first incident surface and the panel, and the first incident surface has an upper arc-shaped bulge and a lower arc-shaped concave shape. The upper part of the convex lens has an arc-shaped bulge, and the lower part is a downward-sloping curved surface. A cylindrical microlens array is provided on the front end face of the panel portion surrounding the convex lens.

[0006] In the optional scheme, the LED group includes a low beam LED group and a high beam LED group. The low beam LED group is located at the intersection of the central axis of the total reflection lens and the opening of the eccentric groove. The high beam LED group is parallel to the low beam LED group and is located directly below the low beam LED group.

[0007] This application also discloses a vehicle headlight, which includes the aforementioned high and low beam lighting modules and a housing. The high and low beam lighting modules are disposed in a recess at the front of the housing, with the panel and the front convex lens tilted downwards. A main control circuit board is disposed inside the housing, and the LED assembly is disposed on a secondary circuit board, which is electrically connected to the main control circuit board. A silicone pad is provided on the top of the housing, and a strip magnet is provided below the silicone pad. Clip positions are provided on both sides of the silicone pad.

[0008] The beneficial effects of this application compared with the prior art are: the light from the lamp assembly is refracted by the first incident surface in the shape of a convex lens and the front convex lens, so that the light emitted to the outside is more focused and less scattered, thereby reducing the glare caused by the scattering of the vehicle lights and improving driving safety.

[0009] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application, it can be implemented according to the contents of the specification. In order to make the above and other objects, features and advantages of this application more obvious and understandable, preferred embodiments are given below and described in detail. Attached Figure Description

[0010] Figure 1 This is an exploded view of the high and low beam lighting module of this application.

[0011] Figure 2 This is a front view of the high and low beam lighting module of this application.

[0012] Figure 3 for Figure 2 Section AA view.

[0013] Figure 4 for Figure 3 Section BB view.

[0014] Figure 5 This is a stereoscopic view of the main lens from the rear.

[0015] Figure 6 This is a three-dimensional view of the vehicle headlights in this application.

[0016] Figure 7 This is an exploded view of the vehicle headlights in this application.

[0017] Figure 8 This is a low beam effect diagram of the high and low beam lighting module of this application.

[0018] Figure 9 This is a high beam effect diagram of the high and low beam lighting module of this application.

[0019] It should be noted that the products shown in the above views have been appropriately scaled down / enlarged to fit the drawing size and ensure clarity of the views, and there is no limitation on the size of the products shown in the views. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] The embodiment is a high and low beam lighting module, the specific structure of which is as follows: Figure 1-5 As shown. Combined with Figure 1 and Figure 3 As shown, the high and low beam lighting module includes a main lens 10 and an LED assembly 20. The main lens 10 is made of transparent material and includes an integrally formed convex lens 11, a panel 12, and a cup-shaped total internal reflection lens 13. The LED assembly 20 can use planar LEDs in a 7035-size package. The LED assembly 20 is mounted on a thermoelectrically separated copper substrate, which helps improve heat dissipation and ensures stable operation of the LED assembly over a long period of time.

[0024] Combination Figure 1 and Figure 3 As shown, panel 12 is disposed between convex lens 11 and total internal reflection lens 13. Convex lens 11 is located in the middle of the front end face of panel 12, and cylindrical microlens array 121 is provided on the front end face of panel 12 surrounding convex lens 11 to uniformly disperse light in the width direction. Figure 3 As shown, the rear end of the total internal reflection lens 13 is provided with an eccentric groove 130, which is the entrance groove for the light from the light source. The eccentric groove 130 is located directly behind the convex lens 11 and is located in the upper middle position of the rear end face of the total internal reflection lens 13.

[0025] like Figure 3As shown, the bottom of the eccentric groove 130 is a first incident surface 131 shaped like a convex lens, and the inner wall of the eccentric groove 130 is a second incident surface 132. From the opening to the bottom of the eccentric groove 130, the inner diameter of the eccentric groove 130 gradually decreases, thus forming a second incident surface 132 resembling a conical surface. The LED bead assembly 20 is located at the lower part of the opening of the eccentric groove 130 and faces inwards from the eccentric groove 130. Figure 3 As shown, a portion of the light from the LED assembly 20 is refracted sequentially through the first incident surface 131 and then refracted out through the convex lens 11. Another portion of the light from the LED assembly 20 is refracted through the second incident surface 132 and then reflected by the total internal reflection lens 13 before exiting through the panel 12 surrounding the convex lens 11. The light from the LED assembly 20, through the refraction of the convex lens-shaped first incident surface 131 and the convex lens 11, results in more focused and less scattered light rays exiting the vehicle, thus reducing glare caused by headlight scattering and improving driving safety.

[0026] like Figure 3 As shown, in the vertical section, since the eccentric groove 130 is not located in the middle of the total reflection lens 13 but in the upper middle position, the distance between the top of the second incident surface 132 and the central axis 139 of the total reflection lens 13 is greater than the distance between the bottom of the second incident surface 132 and the central axis 139 of the total reflection lens 13. Figure 3 As shown, in the vertical cross-section, the distance between the vertex 1311 of the first incident surface 131 and the panel 12 is less than the distance between the bottom point 1312 of the first incident surface 131 and the panel 12, meaning the lower part of the first incident surface 131 is closer to the LED bead assembly 20 than the upper part. In the vertical cross-section, the upper part of the first incident surface 131 is arc-shaped and the lower part is arc-shaped and concave, exhibiting a small-amplitude wave shape. In the vertical cross-section, the upper part of the convex lens 11 is arc-shaped and the lower part is a downward-sloping curved surface. Figure 4 As shown, in the cross-section, the first incident surface 131 is shaped like a convex lens and the curvature of the front convex lens 11 is smaller than the curvature of the first incident surface 131. After the light passes through the first incident surface 131 and the front convex lens 11, the emitted light can be evenly spread on the road surface in the width direction.

[0027] Combined Figure 1 and Figure 3 As shown, the LED assembly 20 includes a low beam LED assembly 21 and a high beam LED assembly 22, both of which can be controlled separately. The low beam LED assembly 21 has three LEDs arranged side by side, and the high beam LED assembly 22 also has three LEDs arranged side by side. The low beam LED assembly 21 is located at the intersection of the central axis 139 of the total internal reflection lens 13 and the opening of the eccentric groove 130, while the high beam LED assembly 22 is parallel to the low beam LED assembly 21 and located directly below it. The light from the low beam LED assembly 21, after passing through the main lens 13, forms a converging low beam with a cutoff line (e.g., low beam). Figure 8The low beam effect is shown, while the high beam LED assembly 22 is positioned lower, resulting in a larger incident angle for the light entering the first incident surface 131. After refraction by the first incident surface 131 and the convex lens 11, it forms a high beam with a longer range (as shown). Figure 9 (High beam effect shown).

[0028] like Figure 5 As shown, the outer surface of the total internal reflection lens 13 is composed of multiple square reflecting planes 138, which allows light within the total internal reflection lens 13 to be reflected only from the reflecting planes 138 towards the front of the total internal reflection lens 13. The eccentric groove 130 is located at the upper part of the rear end face of the total internal reflection lens 13, and several toothed reflecting surface groups 137 are provided below the opening and on both sides of the eccentric groove 130.

[0029] Another embodiment of this application is a vehicle light, such as... Figure 6 As shown, it includes the high and low beam lighting module and housing 90 as described in the above embodiments. Figure 7 As shown, the high and low beam illumination module is fixedly installed in the groove 94 at the front of the housing 90, and the panel 12 and the convex lens 11 are tilted downwards, so that the light emitted forward will be tilted downwards, further reducing glare. The periphery of the panel 12 of the main lens 10 is an outer stepped step 122, while the opening of the groove 94 of the housing 90 has an inner stepped step 941. The outer stepped step 122 of the main lens 10 is correspondingly placed into the inner stepped step 941, and the two are fixed together with adhesive. Figure 7 As shown, a main control circuit board 91 is housed within the housing 90, and the LED bead assembly 20 is mounted on a secondary circuit board 80. The secondary circuit board 80 utilizes a thermoelectrically separated copper substrate. The secondary circuit board 80 is electrically connected to the main control circuit board 91 so that the LED bead assembly 20 can be controlled by the main control circuit board 91. The secondary circuit board 80 is fixed to the back surface 942 of the recess 94 by screws 81. Figure 7 As shown, the top of the housing 90 is provided with a silicone pad 92, and two bar magnets 93 are located below the silicone pad 92. The silicone pad 92 has clip positions 95 on both sides to accommodate the magnetic mounting method of DJI related products. In addition, a rechargeable power supply (not shown) is also located inside the housing 90. The power supply is electrically connected to the main control circuit board 91 and primarily powers the entire vehicle headlight.

[0030] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0032] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0033] The above examples are merely illustrative of the technical content of this application to facilitate reader understanding, but do not imply that the implementation methods of this application are limited to these. Any technical extensions or re-creations made based on this application are protected by this application. The scope of protection of this application is determined by the claims.

Claims

1. A high / low beam lighting module, characterized in that, It includes a main lens and a lamp bead assembly. The main lens includes an integrally formed convex lens, a panel, and a cup-shaped total reflection lens. The panel is located between the convex lens and the total reflection lens, and the convex lens is located in the middle of the front end face of the panel. The rear end of the total reflection lens is provided with an eccentric groove, which is located directly behind the front convex lens. The bottom of the eccentric groove is a first incident surface in the shape of a convex lens, and the inner sidewall of the eccentric groove is a second incident surface. The LED assembly is located at the lower part of the eccentric groove opening and faces the inside of the eccentric groove. A portion of the light from the LED assembly is refracted sequentially through the first incident surface and then refracted out to the outside by the convex lens. Another portion of the light from the LED assembly is refracted through the second incident surface and then reflected by the total internal reflection lens before being emitted out to the outside from the panel portion around the convex lens.

2. The high and low beam illumination module as described in claim 1, characterized in that, In the vertical section, the distance between the top of the second incident surface and the central axis of the total reflection lens is greater than the distance between the bottom of the second incident surface and the central axis of the total reflection lens.

3. The high and low beam illumination module as described in claim 1, characterized in that, The inner diameter of the eccentric groove gradually decreases in the direction from the opening of the eccentric groove to the bottom of the groove.

4. The high and low beam illumination module as described in claim 1, characterized in that, In cross-section, the first incident surface is shaped like a convex lens and the curvature of the convex lens is less than the curvature of the first incident surface; in vertical cross-section, the distance between the vertex of the first incident surface and the panel is less than the distance between the bottom point of the first incident surface and the panel, and the upper part of the first incident surface is arc-shaped and the lower part is arc-shaped and concave, and the upper part of the convex lens is arc-shaped and the lower part is a downward-sloping curved surface.

5. The high and low beam illumination module as described in claim 1, characterized in that, The front end face of the panel portion surrounding the convex lens is provided with a cylindrical microlens array.

6. The high and low beam illumination module as described in any one of claims 1-5, characterized in that, The lamp assembly includes a low beam lamp assembly and a high beam lamp assembly. The low beam lamp assembly is located at the intersection of the central axis of the total reflection lens and the opening of the eccentric groove. The high beam lamp assembly is parallel to the low beam lamp assembly and is located directly below the low beam lamp assembly.

7. A vehicle light, characterized in that, It includes the high and low beam lighting module as described in any one of claims 1-6.

8. The vehicle light as described in claim 7, characterized in that, The vehicle headlight also includes a housing, and the high and low beam lighting module is located in a groove in front of the housing with the panel and the front convex lens tilted downwards.

9. The vehicle light as described in claim 8, characterized in that, The housing contains a main control circuit board, and the LED bead assembly is located on a secondary circuit board. The secondary circuit board is electrically connected to the main control circuit board.

10. The vehicle light as described in claim 8 or 9, characterized in that, The top of the housing is provided with a silicone pad, and a strip magnet is provided below the silicone pad. The silicone pad is provided with snap-fit ​​positions on both sides.

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