Driving structure of movable optical module of automobile lamp

Abstract

The utility model discloses a driving structure of a movable optical module of an automobile lamp, which comprises a base and stepping motors transversely arranged at two ends of the base, the output ends of the stepping motors are transversely provided with worms, and turbines are vertically assembled above the worms; the turbines on the two sides are installed on the base through rotating shafts. The stepping motors at the two ends can operate synchronously and drive the optical module to move through transmission of the worm and the turbine. The optical module self-locking mechanism is small in occupied space, stable in mechanism operation, capable of guaranteeing accurate control of movement positions through self-locking of the mechanism, capable of guaranteeing dynamic change effects, and suitable for large-range movement of the optical module.

Description

Technical Field

[0001] This utility model relates to the field of automotive lighting technology, and in particular to a driving structure for a movable optical module of an automotive lighting device. Background Technology

[0002] With the ever-increasing demand for personalized styling in modern automobiles, the creativity in both static and dynamic appearance is constantly being enhanced. In the design of automotive headlights, the front position lights, daytime running lights, and front turn signals are generally designed to be fixed in designated positions and comply with the installation regulations of GB4785 for automotive lighting and signaling devices. The lighting module should meet environmental resistance requirements for vibration and shock. When the vehicle is not driving on the road, the lights can create dynamic ambient lighting effects according to personalized needs. Therefore, for current automotive lights, how to achieve dynamic ambient lighting effects while ensuring vibration and shock resistance is a challenge.

[0003] Currently, existing automotive headlights generally use a drive structure to move the optical module, thereby achieving certain dynamic effects. However, traditional drive structures are mostly direct-drive motors, which are insufficient in terms of the precision of dynamic changes, resulting in optical fluctuations and wobbling, especially when the optical module moves a large distance, leading to inconsistencies in stability and a significant decrease in shock resistance over time. Furthermore, due to space limitations, existing drive structures cannot achieve large-scale movement of the optical module, thus failing to meet higher standards of dynamic lighting requirements. In addition, when the optical module is heavy or large, traditional drive structures can only increase the number or size of motors to improve load-bearing capacity and operating force, which is problematic given the already confined internal space of automotive headlights. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a drive structure for a movable optical module of an automotive lamp. It occupies little space, operates smoothly, and can ensure precise control of the movement position through the self-locking of the mechanism, ensuring dynamic change effect, and is suitable for a wide range of optical module movement.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] A drive structure for a movable optical module of an automotive lamp includes a base and stepper motors arranged horizontally at both ends of the base. A worm gear is arranged horizontally at the output end of the stepper motor, and a turbine is mounted vertically above the worm gear.

[0007] Both turbines on both sides are mounted on the base via a rotating shaft;

[0008] The stepper motors at both ends can operate synchronously and drive the optical module to move through the transmission of worm gears and turbines.

[0009] Furthermore, two supports are provided at both ends of the base, the stepper motor is mounted on one of the supports, and the worm gear is rotatably assembled between the two supports.

[0010] Furthermore, the turbine is a notched turbine.

[0011] Furthermore, a wire harness connector is also provided at the bottom of the stepper motor.

[0012] Furthermore, the rotating shaft is a single, integrated structure, with the turbines on both sides respectively mounted at both ends of the rotating shaft.

[0013] Furthermore, the optical module includes an optical module, and a support device is provided at the bottom of the optical module. Each of the four corners of the bottom of the support device is provided with a fulcrum. On the side of the base away from the turbine, two connecting rods are rotatably mounted through the support. The two connecting rods are rotatably connected to two fulcrums on the same side, and the two fulcrums close to the turbine are rotatably mounted on the inner side of the two turbines.

[0014] Furthermore, the rotating shaft is a split structure with two separate shafts, and the turbines on both sides are respectively installed via a single rotating shaft.

[0015] Furthermore, the optical module includes a target module located in the middle of the base, a decorative cover plate is provided above the target module, and drive rods are provided on the inner sides of both ends of the decorative cover plate, with the two drive rods respectively fixedly installed on the inner sides of the two turbines.

[0016] By adopting the above technical solution, this utility model has the following beneficial effects:

[0017] 1. This utility model differs from traditional drive structures by using a motor and a worm gear / turbine transmission to drive the optical module. It has a self-locking capability, which can ensure precise control of the movement position and smooth operation, thereby ensuring stable dynamic changes and preventing shaking or fluctuations. At the same time, this structure has strong impact resistance and a longer service life.

[0018] 2. In this utility model, the motor and worm gear are horizontally assembled at both ends of the base, and the turbine gear is vertically engaged with the worm gear. This reduces the space occupied and ensures that the optical module has a larger range of movement space to meet the dynamic lighting requirements of higher standards. At the same time, when the optical module is large in weight or size, this structure can obtain greater load-bearing capacity and motion torque through the cooperation of the turbine gear and worm gear.

[0019] 3. This utility model drives the optical module by synchronously operating the motors at both ends, which can further ensure the smooth operation of the mechanism and obtain greater torque and more precise dynamic control.

[0020] 4. This utility model can not only control the dynamic module independently, but also be used in combination with other lighting modules. In addition, it can also be used to realize the blocking and opening of the optical module, similar to the dynamic effect of blinking. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of Embodiment 1 of the present utility model;

[0022] Figure 2 This is a schematic diagram illustrating the motion of Embodiment 1 of this utility model;

[0023] Figure 3 This is a schematic diagram illustrating the motion of Embodiment 2 of this utility model;

[0024] Among them, 1. base; 10. bracket; 2. stepper motor; 20. wire harness connector; 3. worm gear; 4. turbine; 5. rotating shaft; 6. drive rod; 7. optical module; 70. support device; 71. fulcrum; 72. connecting rod; 8. target module; 80. decorative cover plate. Detailed Implementation

[0025] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0026] Example 1:

[0027] like Figure 1 , 2 As shown, this embodiment provides a drive structure for a movable optical module of an automotive lamp, which mainly consists of a base 1, two stepper motors 2, two worm gears 3, two turbines 4, and a rotating shaft 5. The two stepper motors 2 are horizontally positioned at both ends of the base 1, the two worm gears 3 are respectively positioned at the output ends of the two stepper motors 2, and the two turbines 4 mesh with the two worm gears 3 respectively. Specifically, two brackets 10 are formed at both ends of the base 1. The stepper motor 2 is mounted on one of the brackets 10, and the worm gear 3 is rotatably mounted between the two brackets 10 via bearings, with the worm gear 3 horizontally mounted at the output end of the stepper motor 2, and the turbines 4 vertically mounted above the worm gear 3. Simultaneously, the rotating shaft 5 is rotatably mounted on the base 1 via bearings, and the turbines 4 on both sides are respectively mounted at both ends of the rotating shaft 5.

[0028] In this embodiment, the optical module consists of an optical module 7 and a support device 70 for supporting the optical module 7. Support points 71 are provided at each of the four corners of the bottom of the support device 70. Simultaneously, two connecting rods 72 are rotatably mounted on the side of the base 1 away from the turbine 4 via supports. The two connecting rods 72 are rotatably connected to the two support points 71 on the same side, while the two support points 71 closer to the turbine 4 are rotatably mounted on the inner sides of the two turbines 4. This effectively constitutes a four-bar linkage, which takes into account and avoids mechanical dead points during movement. (Reference) Figure 2 In this state, the stepper motors 2 at both ends can operate synchronously and drive the two turbines 4 to rotate through the transmission of the worm gear 3 and the turbine 4. The two turbines 4 are connected to the two fulcrums 71 by rotation, thereby driving the support device 70 and the optical module 7 to move. The design of the four fulcrums 71 and the two connecting rods 72 can ensure the smooth operation of the optical module 7.

[0029] In addition, to reduce the weight of the mechanism and avoid interference, the turbine 4 in this embodiment is a notched turbine, with the notch design ensuring sufficient range of motion. Furthermore, to facilitate wiring, a wiring harness connector 20 is also provided at the bottom of the stepper motor 2.

[0030] This embodiment, through the above design, differs from traditional drive structures. It employs a stepper motor 2 in conjunction with a worm gear 3 and a turbine 4 to drive the optical module's movement. This design features self-locking capability, ensuring precise control of the movement position and smooth operation, thereby guaranteeing stable dynamic changes and preventing wobbling or fluctuations. Simultaneously, this structure exhibits strong impact resistance and a longer service life. Furthermore, the stepper motor 2 and worm gear 3 are horizontally mounted at both ends of the base 1, while the turbine 4 vertically engages with the worm gear 3. This minimizes space requirements, allowing the optical module a wider range of movement to meet higher standards of dynamic lighting. When the optical module is heavy or large, this structure, through the cooperation of the turbine and worm gear, can achieve greater load-bearing capacity and torque force.

[0031] Example 2:

[0032] like Figure 3 As shown, this embodiment retains most of the features of Embodiment 1, only adjusting the shape and structure of the base 1 and the number of rotating shafts 5. In this embodiment, the middle of the base 1 is flipped up to avoid the optical module, and the number of rotating shafts 5 is two separate shafts, with the turbines 4 on both sides mounted via a single rotating shaft 5.

[0033] In this embodiment, the optical module consists of a target module 8 and a decorative cover plate 80. The target module 8 is located in the middle of the base 1. Drive rods 6 are provided on the inner sides of both ends of the decorative cover plate 80, and the two drive rods 6 are respectively fixedly installed inside the two turbines 4. (Reference) Figure 3In this state, the stepper motors 2 at both ends can operate synchronously and drive the two turbines 4 to rotate through the transmission of the worm gear 3 and the turbine 4. The two turbines 4 are connected by the drive rod 6 to drive the decorative cover 80 to flip, complete the opening or closing of the decorative cover 80, open and block the target module 8, thereby achieving the dynamic lighting effect of the target module 8, similar to the dynamic effect of blinking.

[0034] As can be seen from the above design, this embodiment can not only achieve most of the effects and advantages of Embodiment 1, but also be applied to a variety of dynamic change effects, and has a wide range of applications.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," 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 the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer 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.

[0036] The above specific embodiments further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A driving structure for a movable optical module of an automotive lamp, characterized in that: It includes a base (1) and stepper motors (2) arranged horizontally at both ends of the base (1). A worm gear (3) is arranged horizontally at the output end of the stepper motor (2), and a turbine (4) is mounted vertically above the worm gear (3). Both turbines (4) on both sides are mounted on the base (1) via a rotating shaft (5); The stepper motors (2) at both ends can operate synchronously and drive the optical module through the transmission of worm gear (3) and turbine (4).

2. The driving structure for a movable optical module of an automotive lamp according to claim 1, characterized in that: The base (1) has two brackets (10) at both ends. The stepper motor (2) is mounted on one of the brackets (10), and the worm gear (3) is rotatably assembled between the two brackets (10).

3. The driving structure for a movable optical module of an automotive lamp according to claim 1, characterized in that: The turbine (4) is a notched turbine.

4. The driving structure for a movable optical module of an automotive lamp according to claim 1, characterized in that: The bottom of the stepper motor (2) is also provided with a wire harness connector (20).

5. The driving structure for a movable optical module of an automotive lamp according to claim 1, characterized in that: The shaft (5) is a single integrated structure, and the turbines (4) on both sides are respectively installed at both ends of the shaft (5).

6. The driving structure for a movable optical module of an automotive lamp according to claim 5, characterized in that: The optical module includes an optical module (7), and a support device (70) is provided at the bottom of the optical module (7). Each of the four corners of the bottom of the support device (70) is provided with a fulcrum (71). On the side of the base (1) away from the turbine (4), two connecting rods (72) are rotatably installed through the support. The two connecting rods (72) are rotatably connected to the two fulcrums (71) on the same side respectively. The two fulcrums (71) close to the turbine (4) are rotatably installed on the inner side of the two turbines (4) respectively.

7. The driving structure for a movable optical module of an automotive lamp according to claim 1, characterized in that: The rotating shaft (5) is a split structure with two shafts, and the turbines (4) on both sides are installed through a single rotating shaft (5).

8. The driving structure for a movable optical module of an automotive lamp according to claim 7, characterized in that: The optical module includes a target module (8) located in the middle of the base (1). A decorative cover plate (80) is provided above the target module (8). A drive rod (6) is provided on the inner side of both ends of the decorative cover plate (80). The two drive rods (6) are respectively fixedly installed on the inner side of the two turbines (4).

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