A lens structure for adjusting the focusing of sunlight
By adjusting the lens structure for focusing sunlight and controlling the lens sliding with a dimming motor, the switching between optical focusing and defocusing is achieved, solving the problem of component burning and deformation in automotive optical lights under sunlight and achieving a safe and reliable heat dissipation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XUNCHI VEHICLE IND JIANGSU
- Filing Date
- 2025-06-24
- Publication Date
- 2026-06-19
AI Technical Summary
Existing automotive optical lights are prone to generating heat under sunlight, leading to problems such as component burning and deformation.
The system employs a lens structure that adjusts the focusing of sunlight. It combines a fixed lens, a lens holder, a heat sink, a dimming motor, a ball joint, and a movable lens. The dimming motor controls the ball joint to move the movable lens along a sliding slot, thereby switching between optical focusing and defocusing to avoid focusing sunlight.
It effectively avoids the heat problem of components caused by sunlight focusing, ensuring the safety and reliability of the lamps, and at a lower cost.
Smart Images

Figure CN224381298U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts and lighting technology, and in particular to a lens structure for adjusting the focusing of sunlight. Background Technology
[0002] Automotive optical lighting modules are used for illumination and include lenses, reflectors, LEDs, lens brackets, and cooling systems. When a vehicle is parked, if it is exposed to sunlight for a long time, the sunlight will be refracted and focused through the headlight lens, shining on the corresponding components and generating heat. Over time, this can even cause the components to burn or deform. Utility Model Content
[0003] In view of the practicality and shortcomings of the existing technology, the purpose of this utility model is to provide a lens structure for adjusting the focusing of sunlight, thereby solving the problem.
[0004] The technical solution adopted in this utility model is as follows:
[0005] A lens structure for adjusting the focusing of sunlight includes a fixed lens, a lens holder, a heat sink, a dimming motor, a ball joint, and a movable lens. The lens holder is tubular with a sliding groove within its cavity. The fixed lens is fixed to the front end of the lens holder, and the heat sink is fixed to the rear end. The movable lens has a ball joint corresponding to the sliding groove of the lens holder and a retaining sleeve, and is installed within the cavity of the lens holder. The ball joint is movably engaged in the sliding groove. The dimming motor includes a telescopic screw fixedly connected to the lens holder. One end of the ball joint has a ball head corresponding to the retaining sleeve of the movable lens, with the retaining sleeve inside the retaining sleeve of the movable lens. The other end is connected to the end of the telescopic screw of the dimming motor.
[0006] The lens structure for adjusting the focusing of sunlight is characterized in that the ball head at one end of the ball head rod is movably sleeved in the sleeve of the movable lens, and the other end is fixedly connected or hinged to the end of the telescopic screw of the dimming motor.
[0007] This utility model features a novel lens structure for adjusting the focusing of sunlight. It is scientifically designed and has a reasonable structure. By using two lenses, it achieves optical focusing in the working state and active defocusing in the non-working state of the automotive optical lighting module, thereby avoiding the problem of sunlight focusing. It is safe, reliable, and effective, and its manufacturing cost is low. Attached Figure Description
[0008] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.
[0009] Figure 1 This is a schematic diagram of the lens used in this invention to adjust the focusing of sunlight;
[0010] Figure 2 for Figure 1 A schematic diagram of the AA-direction section;
[0011] Figure 3 for Figure 2 Schematic diagram of a BB-oriented movable lens;
[0012] Figure 4 for Figure 2 Schematic diagram of the BB-oriented lens bracket;
[0013] In the diagram: 1 is the fixed lens, 2 is the lens bracket, 3 is the heat sink, 4 is the dimming motor, 5 is the ball joint rod, 6 is the movable lens, 7 is the sliding slot, 8 is the ball joint post, and 9 is the retaining sleeve. Detailed Implementation
[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described below are merely illustrative of this utility model. Key terms that need attention in these descriptions, including "ball joint," "ball post," "sliding groove," and "sleeve," are only for the purpose of facilitating and simplifying the description of this utility model, and therefore should not be construed as limiting this utility model.
[0015] like Figure 1-2 As shown, this utility model discloses a lens structure for adjusting the focusing of sunlight. This embodiment uses a car headlight as an example, employing two lenses to achieve optical focusing in the working state and active defocusing in the non-working state of the automotive optical lighting module. The structure includes a fixed lens 1, a lens bracket 2, a heat sink 3, a dimming motor 4, a ball joint 5, and a movable lens 6. See also... Figures 3-4 As shown, the lens support 2 has a tubular structure with a sliding groove 7 in its cavity. The fixed lens 1 is fixed to the front end of the lens support 2, and the heat sink 3 is fixed to the rear end of the lens support 2. The movable lens 6 added in this invention has a ball head post 8 corresponding to the sliding groove 7 of the lens support 2 and a sleeve 9. It is installed in the cavity of the lens support 2, and its ball head post 8 is movably locked in the sliding groove 7. The dimming motor 4 includes a telescopic screw, which is fixedly connected to the lens support 2. In order to realize the ball head structure connection according to the prior art, one end of the ball head rod 5 has a ball head corresponding to the sleeve of the movable lens 6. The movable sleeve is in the sleeve 9 of the movable lens 6, and its other end is fixedly connected or hinged to the end of the telescopic screw of the dimming motor 4.
[0016] This utility model relates to a lens structure for adjusting the focusing of sunlight. It utilizes a dimming motor 4, which, through the extension and retraction of its telescopic screw, drives the movable lens 6 via the connected ball joint 5 and the ferrule 9. The ball joint 8 slides along the sliding groove 7 to extend and retract, thus achieving the merging of the working state of the lens and the separation of the non-working state, preventing sunlight from being refracted and focused after passing through the inner lens.
[0017] After the car stops working, the control structure causes the light-shielding device to block the inner lens, thus preventing sunlight from being refracted and focused after passing through the inner lens.
[0018] The above description is only a general embodiment of this utility model. For those skilled in the art, there are various other embodiments with modifications and variations, which will not be elaborated here. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model are included within the protection scope claimed by this utility model.
Claims
1. A lens structure for adjusting the focusing of sunlight, comprising a fixed lens (1), a lens support (2), a heat sink (3), a dimming motor (4), a ball joint (5), and a movable lens (6), characterized in that, The lens support (2) has a tubular structure and a sliding slot (7) in its cavity. The fixed lens (1) is fixed at the front end of the lens support (2), and the heat sink (3) is fixed at the rear end of the lens support (2). The movable lens (6) has a ball head post (8) corresponding to the sliding slot (7) of the lens support (2) and a sleeve (9). It is installed in the cavity of the lens support (2), and its ball head post (8) is movably locked in the sliding slot (7). The dimming motor (4) includes a telescopic screw, which is fixedly connected to the lens support (2). One end of the ball head rod (5) has a ball head corresponding to the sleeve of the movable lens (6). The movable sleeve is inside the sleeve (9) of the movable lens (6), and the other end is connected to the end of the telescopic screw of the dimming motor (4).
2. The lens structure for adjusting focus of sunlight according to claim 1, wherein, The ball head at one end of the ball head rod (5) is movably sleeved in the sleeve (9) of the movable lens (6), and the other end is fixedly connected or hinged to the end of the telescopic screw of the dimming motor (4).