Mechanical transmission lamp

Abstract

The utility model relates to a vehicle lamp technical field especially a kind of mechanical transmission lamp, stator fixed support is equipped with upper fixed shaft and lower shaft;LED board support can be rotatably installed on stator fixed support, and axial positioning is carried out by upper fixed shaft and lower shaft;LED board is installed on LED board support, and LED board is divided into multiple function areas that can rotate with LED board support and mutually switch;Drive device is connected with LED board support and lower shaft respectively, to drive LED board support to rotate around upper fixed shaft and lower shaft, through rotating mechanical structure, two kinds or more kinds of lamp function are integrated on the basis of satisfying regulation, through mechanical conversion, on the one hand, lamp size is reduced, on the other hand, lamp function is more abundant;Through integrated position feedback component, the closed-loop control of lamp position, rotational speed and other functions is realized;Through the load-bearing mechanism planning of installation and upper fixed shaft, lower shaft bearing composition, the overall structure stress is optimized;Through the use of damping shaft sleeve, the stability of lamp in stationary state is improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle lighting technology, and in particular to a mechanically driven lamp. Background Technology

[0002] In the design and application of modern automotive lighting systems, as consumers' demands for vehicle functional integration, space utilization, and performance reliability continue to increase, the limitations of traditional stand-alone luminaires are becoming increasingly apparent. Traditional luminaires typically require separate design and installation of corresponding luminaire components for each specific lighting function (such as low beam, high beam, position lights, turn signals, etc.). This design not only results in luminaires occupying a large amount of vehicle space, increasing the overall vehicle weight and cost, but also has significant shortcomings in terms of functional expandability and flexibility, and cannot change the luminaire function as needed.

[0003] Therefore, given the shortcomings of traditional automotive lighting in terms of functional integration and space utilization, there is an urgent need for a new type of automotive lighting structure that can effectively solve the above problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is: in order to solve the problems existing in the prior art in the background art, to provide a mechanical transmission lamp that realizes the multi-functionality and dynamic switching of a single lamp through a compact and reliable mechanical rotation mechanism, so as to realize the high integration, high functionality and high reliability of lamps in modern automobiles.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a mechanical transmission lamp, comprising... The stator fixing bracket, which is equipped with an upper fixed shaft and a lower shaft, provides a stable axial positioning and rotation center for the rotation of the LED board bracket, ensuring motion accuracy, preventing radial movement, and improving operational reliability. The stator fixing bracket fixes the entire lamp to the vehicle body and bears the weight from the LED board bracket and all its components, as well as the torque generated during operation. The LED board bracket is rotatably mounted on the stator fixing bracket and is axially positioned by the upper fixing shaft and the lower shaft; LED panels, through the integrated LED chips, realize the optical functions of ADAS lighting and ISD interactive display light. They are installed on LED panel brackets and are divided into multiple functional areas that can rotate with the LED panel brackets and switch between each other. Multiple functions are integrated into one through partitioning, and the functions can be dynamically switched by rotation. The drive unit, which provides rotational power and generates the torque required to drive the LED board bracket to rotate, is connected to the LED board bracket and the lower shaft respectively, and is used to drive the LED board bracket to rotate around the upper fixed shaft and the lower shaft.

[0006] Furthermore, a position feedback component is installed on the upper fixed axis to detect the absolute position or relative rotation angle of the LED board support in real time, ensuring that each functional area can stop precisely at the preset working position, avoiding misalignment caused by inertia or error, ensuring optical effect, and forming a closed-loop control of control, drive, feedback and correction, thereby improving the control accuracy and reliability of the system.

[0007] Furthermore, the stator of the drive unit is connected to the lower shaft, and a bearing is provided between the lower shaft and the LED board bracket; A rotor mounting plate is installed on the rotor part of the drive unit. The rotor mounting plate efficiently transmits the torque of the drive unit. The rotor mounting plate is connected to the LED board bracket, forming a compact, efficient, and responsive power output.

[0008] Furthermore, a first PCBA board is mounted on the upper fixed shaft for supplying power to the LED board and driving the LED board, and for receiving signals from the position feedback component and generating control logic accordingly. A second PCBA board is mounted on the rotor mounting plate. The rotor mounting plate provides a reliable mounting platform for the second PCBA board. The second PCBA board is equipped with a position recognition chip for signal processing to control the drive device and the position feedback component. The second PCBA board is electrically connected to the first PCBA board, which helps to reduce electromagnetic interference of the drive signal to the sensitive position feedback signal and LED drive signal, and improves system stability.

[0009] Furthermore, a damping bushing is provided between the upper fixed shaft and the stator fixed bracket to prevent the lamp from rotating due to vibration when the vehicle is not powered on or does not need to rotate, thereby improving the safety factor.

[0010] Furthermore, the LED board can be either an ADAS lamp or an ISD lamp, and can switch between the two, upgrading the lamp from a static functional component to a dynamic interactive interface.

[0011] Furthermore, the LED board is a flexible board, and an optical structure is provided on the front side of the light path of the LED board.

[0012] Furthermore, the drive unit is a brushless motor, stepper motor, or servo motor, and a reducer is installed on the output end of the drive unit to increase the output torque and make the control more precise.

[0013] Furthermore, the bearings are deep groove ball bearings or angular contact bearings, which effectively support the radial and axial loads of the LED board bracket and ensure smooth rotation.

[0014] Furthermore, the position feedback component is a position encoder or code disk.

[0015] The beneficial effects of this utility model are: 1. This utility model is a rotary type, which integrates two or more types of lamp functions while meeting the regulations through a rotary mechanical structure. The lamp functions are defined by the user. Through mechanical transformation, the size of the lamp is reduced on the one hand, and the functions of the lamp are enriched on the other hand. 2. Closed-loop control of lamp position, rotation speed, and other functions is achieved through integrated position feedback components; 3. Through excellent installation and the design of the load-bearing mechanism consisting of the upper fixed shaft and the lower shaft bearings, the overall structural stress is optimized; 4. The design allows for torque output via a drive unit and axial force bearing via a load-bearing system, improving the reliability of the product under stress. The use of a damping bushing enhances the stability of the lamp in a stationary state. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is the front view of this utility model; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This is a control block diagram of the present invention; Figure 5 This is the control logic diagram of this utility model; In the diagram: 1. First PCBA board, 2. Upper fixed shaft, 3. Damping bushing, 4. Stator fixing bracket, 5. Top cover, 6. LED board, 7. LED bracket, 8. Position feedback component, 9. Second PCBA board, 10. Rotor fixing plate, 11. Drive device, 12. Bearing, 13. Lower shaft. Detailed Implementation

[0018] 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 present invention, and therefore only show the components relevant to the present invention.

[0019] like Figures 1-5 The illustrated lamp is a mechanically driven lamp that can be mechanically switched from a stationary lamp to a rotating lamp, including... The stator fixing bracket 4 has a C-shaped cross-section in the vertical direction and serves as the mounting base for the overall moving parts. It is equipped with an upper fixing shaft 2 and a lower shaft 13, which together form a precision shaft system for the rotating parts. The LED board bracket 7 rotates around this precise geometric axis. At the same time, the two upper and lower support points restrict the movement of the LED board bracket 7 in the axial direction, ensuring its rotation around the axis and improving motion stability. Among them, a damping bushing 3 is provided between the upper fixed shaft 2 and the stator fixed bracket 4 to prevent the lamp from rotating due to vibration when the vehicle is not powered on or does not need to rotate. LED board bracket 7 is placed at the C-shaped opening of stator fixing bracket 4. LED board bracket 7 has a hollow structure. The upper end of LED board bracket 7 is covered with an upper cover 5, which is rotatably mounted on stator fixing bracket 4 and axially positioned by upper fixing shaft 2 and lower shaft 13. LED board 6 is the only light-emitting unit in the luminaire, undertaking multiple luminaire functions that meet regulations, such as ADAS lamp / ISD lamp. LED board 6 can be ADAS lamp or ISD lamp, etc., and can also be divided into more functional areas as needed, and can be designed according to different requirements; it is installed on LED board bracket 7, and LED board 6 is divided into multiple functional areas that can rotate with LED board bracket 7 and switch between each other. The drive device 11 is connected to the LED board support 7 and the lower shaft 13 respectively, and is used to drive the LED board support 7 to rotate around the upper fixed shaft 2 and the lower shaft 13.

[0020] Specifically: the drive unit 11 outputs torque, and the upper fixed shaft 2 and the lower shaft 13 bear the axial force, thereby improving the reliability of the product under stress.

[0021] The lights can be freely adjusted to ISD mode or autonomous driving mode during driving. When the autonomous driving mode is on, the lights will display blue-green light and ADAS prompts will be displayed. When the autonomous driving mode is off, the lights can be selected to ISD mode and output signals such as welcoming or farewell.

[0022] like Figure 3 As shown, a position feedback component 8 is installed on the upper fixed shaft 2, which is the guarantee for achieving precise switching and preventing misalignment. The position feedback component 8 is a position encoder or code disk. The position encoder is an absolute encoder or an incremental encoder, which is selected according to the functional requirements of the lamp. The position feedback component 8 is used to provide position feedback to the entire lamp driver or vehicle. The position feedback provided by the entire lamp driver or vehicle can be determined based on the signal feedback from the position encoder: 1. Whether the lamp has rotated to a fixed position as required; 2. Whether the lamp illuminates or turns off according to the required position; 3. Whether the lamp flows or completes the set animation according to the fixed position; 4. Control the motor start and stop; 5. Control the motor speed.

[0023] like Figure 3 As shown, the stator part of the drive device 11 is connected to the lower shaft 13, and a bearing 12 is provided between the lower shaft 13 and the LED board bracket 7. The bearing 12 is a deep groove ball bearing or an angular contact bearing. A rotor fixing plate 10 is mounted on the rotor part of the drive device 11, and the rotor fixing plate 10 is connected to the LED board bracket 7.

[0024] like Figure 3 The first PCBA board 1 is mounted on the upper fixed shaft 2 as shown. It is used to power and drive the LED board 6, and to receive signals from the position feedback component 8 or to perform other related functions as needed. A second PCBA board 9 is mounted on the rotor fixing plate 10. The second PCBA board 9 is equipped with a position recognition chip, which is used to control the signal processing of the drive device 11 and the position feedback component 8 or to perform other related functions as needed. The second PCBA board 9 is electrically connected to the first PCBA board 1.

[0025] In addition, the LED board 6 is a flexible board, and an optical structure is provided on the front side of the optical path of the LED board 6. The optical structure includes a bracket supporting the LED board 6, with a light-diffusing plate mounted on the front side of the bracket. The bracket has a curved surface adapted to the shape of the LED board 6. The LED board is attached to the back of the bracket, and the light-diffusing plate is positioned in front of the bracket. The light-diffusing plate can be a frosted plate, a microprism plate, or a diffusion film. The bracket is a reflective bracket with a highly reflective coating on its surface.

[0026] The drive unit 11 is a brushless motor, stepper motor or servo motor. A reducer is installed on the output end of the drive unit 11. The reducer can be configured according to the speed or torque requirements to achieve the function of speed reduction and torque increase.

[0027] Among them, the stator fixing bracket 4, lower shaft 13, upper fixing shaft 2, damping bushing 3, stator part of drive device 11, inner ring of bearing 12, and position feedback component 8 are all fixed parts, and the remaining parts are rotating parts.

[0028] like Figure 4 As shown, the control of this utility model is specifically as follows: the system senses position (angle) and time, and through intelligent calculation by the SOC (System-on-a-Chip), it ultimately and precisely controls the motor movement and LED lighting effects. Specifically: The position feedback component 8 detects the rotation angle of the LED bracket 7 in real time and feeds this position information back to the SOC, which is the basis for achieving precise positioning and closed-loop control. Meanwhile, the timer provides the SOC with precise time information to calculate speed, control the rhythm of light flow, and achieve various time-related dynamic effects. The System-on-Chip (SOC) is the brain of the entire system. It integrates multiple software functional modules and is responsible for all computations and decisions. Specifically: Based on the angle change fed back by the position feedback component 8 and the time interval provided by the timer, the SOC calculates the current rotation speed of the drive device 11 in real time; compares the calculated actual speed with the preset target speed, and generates a correction signal through an algorithm (such as PID control) to ensure that the drive device 11 runs smoothly and accurately at the desired speed. Based on the preset angle and the timer signal, the SOC combines the results of speed control with the system's requirements for the target position to generate the final drive mass of the drive device 11 and outputs it to the drive device 11 to control the LED bracket 7 to rotate to the specified position. It also controls the lighting state of the LED lights on the LED board 6 in the corresponding functional area to create a dynamic visual effect of flowing water and gradient lights.

[0029] like Figure 5 As shown, the control logic of this utility model is as follows: Step 1: The system receives encoder signals and timer signals in real time. The encoder signal represents the actual physical position and speed of the drive device 11, and the timer signal represents the expected time reference of the system. Step 2: Determine whether the encoder signal and the timer signal are within the allowable error range at the expected time calculated by the timer and the actual position fed back by the encoder; Step 3: If so, the drive unit 11 is in good operating condition and rotates according to the predetermined plan. The system maintains the current drive voltage and current of the drive unit 11 to ensure its continued smooth operation. If not, it indicates an abnormality. If the actual position is less than the expected position, increase the voltage and current; if the actual position is greater than the expected position, decrease the voltage and current. Step 4: Light up the LEDs on LED board 6 according to the encoder signal.

[0030] Example 2: The difference from Embodiment 1 is that when the drive device 11 is a servo motor, the position feedback component 8 and the position recognition chip can be eliminated, and the position feedback function is undertaken by the servo motor.

[0031] Example 3: The difference from Embodiment 1 is that the optical mechanism is a smoked lampshade, which is made of a semi-transparent dark material. The LED plate 6 is configured so that the LED chips on it emit light directly toward the smoked lampshade to form direct optics, which can greatly reduce the load on the entire rotating component.

[0032] Example 4: The difference from Embodiment 1 is that the output end of the drive device 11 is connected to a worm gear or connecting rod structure, thereby realizing the rotation of the lamp.

[0033] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A mechanical transmission light, characterized by: include The stator fixing bracket (4) is equipped with an upper fixing shaft (2) and a lower shaft (13). LED board bracket (7) is rotatably mounted on stator fixing bracket (4) and axially positioned by upper fixing shaft (2) and lower shaft (13); LED board (6) is mounted on LED board bracket (7). The LED board (6) is divided into multiple functional areas that can rotate with the LED board bracket (7) and switch between each other. The drive device (11) is connected to the LED board bracket (7) and the lower shaft (13) respectively, and is used to drive the LED board bracket (7) to rotate around the upper fixed shaft (2) and the lower shaft (13).

2. The mechanical transmission lamp according to claim 1, characterized in that: A position feedback component (8) is installed on the upper fixed shaft (2).

3. A mechanical drive light as claimed in claim 2, characterised in that: The stator of the drive device (11) is connected to the lower shaft (13), and a bearing (12) is provided between the lower shaft (13) and the LED board bracket (7). A rotor fixing plate (10) is installed on the rotor part of the drive device (11), and the rotor fixing plate (10) is connected to the LED board bracket (7).

4. A mechanical transmission lamp according to claim 3, characterized in that: The upper fixed shaft (2) is equipped with a first PCBA board (1) for supplying power to the LED board (6) and driving the LED board (6), and for receiving signals from the position feedback component (8); A second PCBA board (9) is mounted on the rotor fixing plate (10). The second PCBA board (9) is provided with a position recognition chip for signal processing of the control drive device (11) and the control position feedback component (8). The second PCBA board (9) is electrically connected to the first PCBA board (1).

5. A mechanical drive light as defined in claim 1, wherein: A damping bushing (3) is provided between the upper fixed shaft (2) and the stator fixed bracket (4) to prevent the lamp from rotating due to vibration when the vehicle is not powered on or does not need to rotate.

6. A mechanical drive light as defined in claim 1, wherein: The LED board (6) is either an ADAS lamp or an ISD lamp, and can be switched between the two.

7. A mechanical transmission lamp according to claim 1, characterized in that: The LED board (6) is a flexible board, and an optical structure is provided on the front side of the light path of the LED board (6).

8. A mechanical transmission lamp according to claim 1, characterized in that: The drive device (11) is a brushless motor, a stepper motor or a servo motor, and a reducer is installed on the output end of the drive device (11).

9. A mechanical transmission lamp according to claim 3, characterized in that: The bearing (12) is a deep groove ball bearing or an angular contact bearing.

10. A mechanical transmission lamp according to claim 2, characterized in that: The position feedback component (8) is a position encoder or code disk.

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