Built-in dimming motor device of automobile headlamp

Abstract

The invention relates to a built-in dimming motor device of an automobile headlamp. An adjusting mechanism comprises a ball joint rod, a threaded shaft, a connection shaft and a shaft sleeve, wherein the inner hole of the ball joint rod is connected with the threaded shaft through a thread; the threaded shaft is connected with the shaft sleeve through the connection shaft; the shaft sleeve is supported inside the support saddle of a housing; a motor drive mechanism comprises a motor, a motor worm, a transmission shaft and a gear sleeve; the motor is arranged on the motor support saddle of the housing; the motor worm is arranged on a motor output shaft; the two sides of the transmission shaft are respectively arranged on the two axle seats of the housing; an intermediate worm gear on the transmission shaft is meshed with the motor worm; an intermediate worm on the transmission shaft is meshed with a worm gear on the gear sleeve; the inner hole of the gear sleeve is connected with the shaft sleeve through a thread; a circuit board arranged inside the housing is electrically connected with the motor; a rear cover is arranged on the rear part of the housing; and a manual adjusting sleeve externally provided with a bevel gear is connected with the ball joint rod. According to the built-in dimming motor device, the light is adjusted by adopting the motor and can also be adjusted manually, thereby reducing the volume and weight and reducing the cost.

Description

technical field [0001] The invention relates to a built-in dimming motor device of an automobile headlamp, belonging to the technical field of motor vehicle lighting. Background technique [0002] As the eyes of the car, the headlights of the car are not only related to the external image of the car, but also closely related to the safe driving at night or in bad weather conditions. [0003] As an important functional and appearance part of a car, headlights have a light pattern and irradiation direction that can meet the requirements of car lighting standards. Under the influence of the load of the car, long-term vibration, and high and low road conditions, the irradiation direction of the car headlight will deviate from the standard direction. Therefore, it is necessary to adjust the irradiation direction of the headlight to restore the deviation direction of the headlight to Standard direction, thus improving the lighting effect of the headlights. [0004] The current h...

AI Technical Summary

Problems solved by technology

However, the current built-in dimming motor device does not have a manual dimming mechanism. Sometimes due to the working environment and operating requirements, the electric dimming function cannot well meet the dimming requirements.

Moreover, the current built-in dimming motor device is that the motor directly drives the dimming rod. On the one hand, the axial dimension of the whole device is relatively long, resulting in a large and heavy device, and the internal space of each headlight is different. Dimming motor unit is not suitable for headlights with small installation space

Furthermore, because the motor directly drives the dimming rod to move axially, especially for heavy-duty vehicles, the light pattern and irradiation direction are prone to shift after heavy load, requiring frequent dimming, which is likely to cause damage to the motor and increase the cost of use

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