Car lamp steering system and car lamp rotation actuator thereof

Abstract

The invention discloses a car lamp steering system and a car lamp rotation actuator thereof. The car lamp rotation actuator comprises a power device, a transmission device connected with an output shaft of the power device, and an output device connected with the transmission device and a lamp cap, wherein the transmission device comprises a slider in threaded connection with the output shaft, a limiting component for limiting the moving range of the slider, and a connecting rod assembly connected with the slider and the output device. The limiting component limits the slider to move in a limited range, and the car lamp is driven to rotate in a limited angle. The slider, the limiting component and the connecting rod assembly are all common mechanical elements; the car lamp rotation actuator has a simple structure and reliable transmission, and is easy to process and is not easy to damage; and moreover, the realization cost of the car lamp rotation actuator is low, and the reliability is obviously improved.

Description

technical field [0001] The invention relates to the field of adaptive vehicle light control, in particular to a vehicle light rotary actuator used in a vehicle light steering system. In addition, the present invention also relates to a vehicle light steering system comprising the above-mentioned vehicle light rotary actuator. Background technique [0002] With the continuous development of automotive electronics technology, safe driving and intelligent driving have put forward higher and higher requirements for automotive electronics and automotive structural design. Among them, the adaptive front-lighting system (AFS: Adaptive Front-lighting system) appeared to solve the problem of viewing angle when the car is driving at night. The driver can clearly understand the specific situation of the direction to be turned to improve driving safety. One of the key devices in this system is the automotive headlight rotary actuator. There are many kinds of structures of rotary actu...

AI Technical Summary

Problems solved by technology

[0008] The ball head 112 moves linearly with the motor shaft 111, and the ball socket 10 moves in a circular arc around the output shaft with the connecting rod 18. The structure of the ball head 112 and the ball socket 10 cannot convert the linear motion distance of the motor into the output rotation angle by the same amount. , if it is not corrected by control, there will be a certain output error, and the error will increase with the expansion of the output angle range, and the different movement directions will cause a squeezing effect between the two, increasing the friction force, which is not conducive to the transmission output

The ball head 112 and the ball socket 10 are connected by deformation and press-fitting, the reliability of the structural connection is not strong, there is a risk of loosening, and the product reliability is low

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