Flexible self-adaptive lamp body

Abstract

The invention discloses a flexible self-adaptive lamp body which comprises a lamp shell capable of being elastically deformed. The buffer layer is arranged along the inner wall of the lamp shell; the electromagnetic actuator can shake to enable the lamp shell to shake or elastically deform and bend; the flexible lamp body units are arranged in the lamp shell, each flexible lamp body unit comprises an LED light source and a lens module, and a spatial light modulator is arranged in each lens module; the micro servo motors are arranged below the flexible lamp body units in an array mode so as to drive the lens modules of the flexible lamp body units to rotate; the micro servo motor, the electromagnetic actuator and the spatial light modulator are used for dynamically adjusting the light field of the flexible lamp body unit. According to the flexible self-adaptive lamp body, the flexible lamp shell is matched with the electromagnetic actuator and the micro servo motor to achieve the elastic bending model of the lamp shell, then the lighting area of the flexible lamp body unit is adjusted, the lighting effect is optimized, meanwhile, the buffer layer is matched for buffering damage caused by collision, and the maintenance cost of the automobile lamp is reduced.

Description

Technical Field

[0001] This invention relates to the field of automotive lighting technology, and more particularly to a flexible adaptive lamp body. Background Technology

[0002] Common lighting fixtures involve mounting LEDs on a PCB board and using methods such as reflectors, internal lenses, or thick walls to achieve optical functions. This results in complex component design and assembly, a limited range of shapes, and an inability to meet the diverse design needs of current automotive lights.

[0003] There are four major technical problems with existing automotive headlights: First, the rigid headlight body cannot achieve dynamic shape adjustment and light field coordination, leading to lighting failure in special scenarios. For example, when driving uphill to the top, the headlights will illuminate upwards with the front of the car, resulting in a smaller illumination range or even complete darkness, making it impossible to judge road conditions. When parking, the sides of the vehicle are dark, failing to provide better lighting conditions and making it easier to scratch obstacles. Second, there are technical bottlenecks in material stability and luminous efficiency attenuation under extreme environments. At low temperatures (below -20℃), the headlight housing becomes brittle, potentially causing light leakage due to light transmission cracks. High temperatures and exposure to sunlight may cause the headlight body to deform. In rainy weather, water accumulation in the headlight housing causes light refraction, resulting in uneven illumination. Third, there are structural design flaws in impact resistance and pedestrian safety. The headlight housing is easily broken and requires repair. The rigid headlight body has no cushioning at the edges, which can easily cause injury in the event of an accident. Fourth, there are technical obstacles to multi-vehicle adaptation and functional upgrades in engineering mass production. The development cycle of existing headlights is 3-6 months, resulting in poor adaptability. Summary of the Invention

[0004] The technical problem to be solved by this invention is: in order to solve the problem that existing vehicle lights have blind spots and cannot adapt to complex environments, this invention provides a flexible adaptive lamp body, which combines a micro servo motor, an electromagnetic actuator and a spatial light modulator to achieve flexible deformation of the lamp body and optimize the lighting effect.

[0005] The technical solution adopted by this invention to solve its technical problem is: a flexible adaptive lamp body, comprising: an elastically deformable lamp shell; a buffer layer arranged along the inner wall of the lamp shell; electromagnetic actuators arranged at intervals along the inner wall of the lamp shell, the electromagnetic actuators being able to vibrate to make the lamp shell vibrate or elastically deform and bend; multiple flexible lamp body units disposed inside the lamp shell, each flexible lamp body unit including an LED light source and a lens module, the lens module containing a spatial light modulator; and a micro servo motor array disposed below the flexible lamp body units; the micro servo motors, electromagnetic actuators, and spatial light modulator dynamically adjust the light field of the flexible lamp body units.

[0006] This invention relates to a flexible adaptive lamp body. The flexible lamp housing, in conjunction with an electromagnetic actuator and a micro servo motor, achieves an elastic bending profile of the lamp housing, thereby adjusting the illumination area of ​​the flexible lamp body unit and optimizing the lighting effect. At the same time, a buffer layer is used to cushion damage caused by collisions, reducing the maintenance cost of vehicle lights.

[0007] Furthermore, in order to adjust the expansion and contraction of the lamp housing according to the temperature, a micro heating element is embedded in the lamp housing. The micro heating element heats the chain-type liquid crystal elastic matrix layer and adjusts the elastic deformation of the chain-type liquid crystal elastic matrix layer.

[0008] Furthermore, in order to ensure that the vehicle lamp has large deformation capacity and fatigue resistance, the lamp housing includes a main chain type liquid crystal elastic matrix layer and a thick carbon fiber reinforcement layer, which are integrally formed by hot pressing.

[0009] Furthermore, the thick carbon fiber reinforcement layer accounts for 30% of the overall volume of the lamp housing.

[0010] Furthermore, in order to reduce the damage to the headlights during a collision, the buffer layer is a honeycomb aerogel layer, which is bonded to the inner wall of the headlight housing.

[0011] Furthermore, in order to achieve dynamic adjustment of the vehicle lights, the micro servo motors are arranged in groups of four within a flexible lamp body unit, and the number of the multiple flexible lamp body units is three, arranged sequentially.

[0012] Furthermore, in order to compensate for the vibration deviation of the headlight, the number of electromagnetic actuators is eight, and they are embedded in the edge of the headlight housing.

[0013] Furthermore, in order to enhance the heat dissipation effect of the headlight, the interior of the headlight housing is provided with multiple heat dissipation fins, and SMA wires are embedded in the heat dissipation fins. The SMA wires are heated to cause the heat dissipation fins to stretch elastically.

[0014] Furthermore, in order to reduce water droplets adhering to the headlights, the outer surface of the headlight housing is coated with a superhydrophobic coating.

[0015] Furthermore, in order to shake off the water droplets on the lamp housing, multiple annular piezoelectric vibrators are also embedded on the outer periphery of the lamp housing.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. The flexible adaptive lamp body of the present invention utilizes a spatial light modulator to adjust the phase, amplitude, light intensity and other properties that affect the light field, and coordinates with a micro servo motor to adjust the illumination angle. Combined with the rapid shaking of an electromagnetic actuator and the deformation of the lamp housing, different illumination effects are achieved to meet the usage needs of different scenarios.

[0017] 2. The flexible adaptive lamp body of the present invention utilizes a buffer layer wrapped around the lamp housing to reduce the damage to the lamp body during a collision, and at the same time, it can also reduce the harm of the vehicle lights to the human body and reduce collision damage.

[0018] 3. The flexible adaptive lamp body of the present invention uses a superhydrophobic coating to reduce the adhesion of water droplets, and at the same time uses a ring piezoelectric vibrator to shake off the water droplets, thereby reducing the impact of water droplets on the illumination effect. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the flexible adaptive lamp body of the present invention; Figure 2 This is a schematic diagram illustrating the principle of SMA wires and heat dissipation fins; Figure 3 This is a diagram showing the state of the heat dissipation fins after they have been heated.

[0021] In the diagram: 1. Lamp housing, 2. Buffer layer, 3. Electromagnetic actuator, 4. Flexible lamp body unit, 41. Lens module, 42. Spatial light modulator, 43. LED light source, 5. Micro servo motor, 6. Heat sink. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0023] In the description of this invention, 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," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] like Figure 1 and Figure 2 As shown, a flexible adaptive lamp body includes: an elastically deformable lamp housing 1, a buffer layer 2, an electromagnetic actuator 3, multiple flexible lamp body units 4, and a micro servo motor 5.

[0026] Specifically, the lamp housing 1 comprises a main-chain liquid crystal elastomer matrix layer and a thick carbon fiber reinforcement layer, which are integrally formed by hot pressing. The thick carbon fiber reinforcement layer accounts for 30% of the overall volume of the lamp housing 1. Using a main-chain liquid crystal elastomer (mc-LCE) as the matrix, a 0.1mm thick carbon fiber reinforcement layer (LCEC, carbon fiber accounting for 30% of the volume) is composited, achieving an integrated structure with an interfacial bonding strength ≥5MPa through hot pressing. This composite structure combines the large deformation capacity of mc-LCE (room temperature Young's modulus 10-20MPa) with the fatigue resistance of carbon fiber, capable of withstanding over 100,000 cycles of 0-300mm tensile / contraction (deformation rate 50mm / s).

[0027] Preferably, a micro heating element is embedded in the lamp housing 1. The micro heating element heats the chain-type liquid crystal elastic matrix layer and adjusts the elastic deformation of the chain-type liquid crystal elastic matrix layer. The mc-LCE phase transition is regulated by embedding the micro heating element (power 0.5W, response ≤50ms): when heated, the molecular chain reconstructs and contracts, driving the lamp body to expand and contract; when cooled, it is reset by the elastic force of the carbon fiber.

[0028] Specifically, electromagnetic actuators 3 are arranged at intervals along the inner wall of the lamp housing 1, causing the lamp housing 1 to elastically deform and bend. In the case of a steep slope (slope ≥ 15°), after the system (sensors, cameras, AI and other conventional vehicle-mounted equipment) recognizes the slope, it triggers the electromagnetic actuators 3 (installed on the inner edge of the lamp housing) inside the lamp housing to cooperate with the main chain type liquid crystal elastomer of the lamp housing material to bend the lamp housing downward (radius 500mm) and adjust the beam angle and light intensity by 5° through the lamp housing, reducing the blind spot from 2-3m to within 0.5m, ensuring that obstacles at the bottom of the slope are visible.

[0029] Preferably, there are 8 electromagnetic actuators 3, which are embedded in the edge of the lamp housing 1.

[0030] To address the issue of the disconnect between morphology and light field, multimodal driving and spatial light modulator 42 (SLM) are used for coordinated control.

[0031] Specifically, the flexible lamp body unit 4 is housed within the lamp housing 1. The flexible lamp body unit 4 includes an LED light source 43 and a lens module 41, with a spatial light modulator 42 located within the lens module 41. A micro servo motor array is also housed within the flexible lamp body unit 4. The micro servo motor 5 has a torque of 0.3 N. m (positioning accuracy ±0.5°), responsible for horizontal ±20° and vertical ±10° deflection. Electromagnetic actuator 3 (response ≤10ms) enables ±1° high-frequency fine adjustment to compensate for vibration deviation. An integrated 1920×1080 pixel LCD SLM (response ≤20ms) is optically coupled to a 32-segment LED array to modulate beam parameters in real time.

[0032] Specifically, the micro servo motors 5 are arranged in groups of four below a flexible lamp body unit 4, and the number of flexible lamp body units 4 is three, arranged sequentially. A total of 12 micro servo motors 5 are used in a single headlight. The micro servo motors 5 are attached to the lens module 41 by clips or magnetic attraction. The micro servo motors 5 can drive the lens module of the flexible lamp body unit 4 to rotate.

[0033] In rainy weather (rainfall ≥ 2mm / h), the micro servo motor 5 lowers the vertical angle of the lamp body by 3°, triggering the electromagnetic actuator 3 to vibrate ±0.5° to counteract the rain obstruction. The SLM reduces the light intensity by 30% and compresses the beam angle to 20°, reducing water surface reflection and glare by 40%. In foggy weather (visibility ≤ 50m), the SLM switches to a 650nm narrowband mode (half-peak width ≤ 10nm), and with the 5W laser light source, the motor narrows the horizontal angle to 10°, increasing the illumination distance from 30m to 45m (an increase of 50%).

[0034] Specifically, the buffer layer 2 is arranged along the inner wall of the lamp housing 1. The buffer layer 2 is a honeycomb aerogel layer, which is bonded to the inner wall of the lamp housing 1. The density of the honeycomb aerogel layer is 0.1 g / cm³. 3 With a pore diameter of 5mm and a wall thickness of 0.1mm, the strength after bonding with the lamp housing 1 is ≥2MPa. It absorbs impact force through the plastic deformation of the honeycomb hole wall: when a vehicle is involved in a minor collision at 30km / h, the impact force is reduced from 5000N to below 1000N (reduced by 80%), and the repair cost of a single vehicle lamp is reduced from 2000-5000 yuan to below 500 yuan; when colliding with a pedestrian's leg, the contact pressure is reduced from 3MPa to below 1MPa, reducing the risk of bone injury by more than 60%.

[0035] Preferably, the lamp housing 1 has multiple heat dissipation fins 6 inside, with SMA wires embedded in the fins 6. Heating the SMA wires causes the heat dissipation fins 6 to extend elastically. When the brightness of the LED light source 43 exceeds 60°C, the SMA wires heat up and contract, causing the fins to expand, improving heat dissipation efficiency by 60% (temperature control ≤70°C). Combined with conventional over-temperature protection algorithms, this extends the LED lifespan from 5-6 years to 8-10 years. The state of the heat dissipation fins before heating is as follows: Figure 2 As shown. The state of the heat dissipation fins after being heated. Figure 3 As shown.

[0036] Specifically, the outer surface of the lamp housing 1 is coated with a superhydrophobic coating. Multiple annular piezoelectric transducers are also embedded around the outer periphery of the lamp housing 1. The superhydrophobic coating is made of polytetrafluoroethylene (PTFE), with a contact angle ≥150° and a roll-off angle ≤5°, reducing water droplet adhesion. The annular piezoelectric transducers on the lamp housing 1 drive it to vibrate at a high frequency of 0.5 seconds, shaking off water droplets (residual rate ≤5%), thus avoiding 20%-30% light decay.

[0037] In summary, the flexible adaptive lamp body of this invention uses a flexible lamp housing combined with an electromagnetic actuator and a micro servo motor to achieve an elastic bending shape of the lamp housing, thereby adjusting the illumination area of ​​the flexible lamp body unit and optimizing the lighting effect. At the same time, it is combined with a buffer layer to buffer the damage caused by collisions and reduce the maintenance cost of vehicle lights.

[0038] The above description is based on the preferred embodiments of the present invention. Through the above description, those skilled in the art can make various changes and modifications without departing from the technical concept of the present invention. The technical scope of the present invention is not limited to the contents of the specification, but must be determined by the scope of the claims.

Claims

1. A flexible adaptive lamp body, characterized in that, include: Elastically deformable lamp housing (1); A buffer layer (2) is arranged along the inner wall of the lamp housing (1); Electromagnetic actuators (3) are arranged at intervals along the inner wall of the lamp housing (1). The electromagnetic actuators (3) can vibrate to make the lamp housing (1) vibrate or bend elastically. Multiple flexible lamp body units (4) are disposed inside the lamp housing (1). Each flexible lamp body unit (4) includes an LED light source (43) and a lens module (41). The lens module (41) is provided with a spatial light modulator (42). A micro servo motor (5) array is arranged below the flexible lamp body unit (4) to drive the lens module of the flexible lamp body unit (4) to rotate; The micro servo motor (5), electromagnetic actuator (3), and spatial light modulator (42) dynamically adjust the light field of the flexible lamp body unit (4).

2. The flexible adaptive lamp body according to claim 3, characterized in that, The lamp housing (1) is embedded with a micro heating element, which heats the chain-type liquid crystal elastic matrix layer and adjusts the elastic deformation of the chain-type liquid crystal elastic matrix layer.

3. The flexible adaptive lamp body according to claim 2, characterized in that, The lamp housing (1) includes a main chain type liquid crystal elastic matrix layer and a thick carbon fiber reinforcement layer, which are integrally formed by hot pressing.

4. The flexible adaptive lamp body according to claim 3, characterized in that, The thick carbon fiber reinforcement layer accounts for 30% of the overall volume of the lamp housing (1).

5. The flexible adaptive lamp body according to claim 1, characterized in that, The buffer layer (2) is a honeycomb aerogel layer, which is bonded to the inner wall of the lamp housing (1).

6. The flexible adaptive lamp body according to claim 1, characterized in that, The micro servo motors (5) are arranged in groups of four within a flexible lamp body unit (4), and the number of the multiple flexible lamp body units (4) is three, arranged sequentially.

7. The flexible adaptive lamp body according to claim 1, characterized in that, The number of electromagnetic actuators (3) is 8, and they are embedded in the edge of the lamp housing (1).

8. The flexible adaptive lamp body according to claim 1, characterized in that, The lamp housing (1) is provided with a plurality of heat dissipation fins (6), and SMA wires are embedded in the heat dissipation fins (6). The SMA wires are heated to cause the heat dissipation fins (6) to stretch elastically.

9. The flexible adaptive lamp body according to claim 1, characterized in that, The outer surface of the lamp housing (1) is coated with a superhydrophobic coating.

10. The flexible adaptive lamp body according to claim 9, characterized in that, The outer periphery of the lamp housing (1) is also embedded with multiple annular piezoelectric vibrators.

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