An electric double-leaf inner swing door system with differential motion

Abstract

The invention belongs to the technical field related to automobiles. It discloses a differential motion electric double-leaf inner swing door system, which includes a left door, a right door, a door swing mechanism and a transmission mechanism. The door swing mechanism includes two door shafts, a slideway provided on the door frame and two roller bracket assemblies connected to the left door and the right door respectively. The left door and the The right door is respectively connected to the two door shafts; the roller bracket assembly slides along the slideway. The transmission mechanism includes a motor, a differential connected to the motor, an upper output wheel and a lower output wheel respectively connected to the differential, two large pulleys respectively connected to the two door shafts, There is a double-sided synchronous belt driven by the large pulley and a single-sided synchronous belt driven by the lower output wheel. The two roller bracket assemblies are respectively connected to the single-sided synchronous belt; the differential is through The upper output wheel and the lower output wheel output two different rotation speeds.

Description

technical field [0001] The invention belongs to the technical field related to automobiles, and more specifically relates to a differential motion electric double-leaf inner swing door system. Background technique [0002] The power control mechanism of the existing double-leaf public vehicle door system mainly has two modes: pneumatic inner swing door and electric inner swing door. Pneumatic inner swing door, that is, an ordinary rod cylinder drives the door shaft, and then the door shaft drives the door panel to swing in the door opening of the vehicle body. This type of inner swing door requires a clean and dry compressed air source. New energy pure electric public-purpose vehicles are becoming more and more popular. However, there are no air compressors, air tanks and other equipment to provide compressed air on such vehicles, so the passenger doors driven by compressed air are not suitable for pure electric public-purpose vehicles, which limits The use of pneumatic inn...

AI Technical Summary

Problems solved by technology

A large part of the thrust acts on the door shaft, causing pressure and friction on the bearing. This part of the thrust not only does useless work, but also causes wear on the parts on the door shaft.

In addition, during the door opening process, as the door swings, the pressure angle between the thrust and the direction of the door movement speed gradually decreases, while the thrust remains constant. In the second half of the door opening movement, the thrust of the push rod is too large and It will cause the door to collide with the door frame, generate noise and affect the service life of the door parts; the inner swing door also has the phenomenon of pressure angle deterioration during the door closing process

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