Electric bicycle frame

Abstract

The invention discloses an electric bicycle frame, characterized by comprising a frame main tube component, a saddle component, a battery box and a pedal component. The saddle component comprises a saddle tube and a saddle cushion. The saddle cushion is fixed to the frame main tube component through the saddle tube. When front and rear wheels of an electric vehicle using the electric bicycle frameare in contact with a ground, in a center plane in the longitudinal direction of the bicycle (from its head to its tail), a saddle intersection where the left edge of the saddle cushion and the horizontal plane have an included angle alpha of 30 degrees is used as a saddle left end; the battery box is arranged in the lower left of the frame main tube component from the head to the tail along thewidth direction of the vehicle. The center shaft of the pedal component is arranged in a bottom bracket rotationally in front-rear direction, the bottom bracket is releasably fixed to the frame main tube component and positioned on the right of the battery box, lines perpendicular to the ground are extended respectively from the saddle left end and a center shaft center line, a line, perpendicularto the ground, of the center shaft center line is positioned 0-12 cm away from the left of a line, perpendicular to the ground, of the saddle left end.

Description

technical field [0001] The invention relates to the field of electric bicycles, in particular to a vehicle frame for electric bicycles. Background technique [0002] In recent years, electric bicycles have developed rapidly due to their convenience, comfort, energy saving and environmental protection. With the continuous expansion of the user population, the user's demand for electric bicycles is also becoming more and more diverse. But most users first hope that the electric bicycle has a strong battery life, and usually the battery life of the electric bicycle depends on the battery specification used, such as the battery life of 48V / 12AH battery is longer than the battery life of 36V / 12AH long. It is commonly used in the market that four 12V batteries are connected in series to form 48V, and the four batteries are arranged in a 2*2 array in a corresponding basically rectangular parallelepiped battery box. The direction from the front to the rear) is set under the pedal...

AI Technical Summary

Problems solved by technology

It is commonly used in the market that four 12V batteries are connected in series to form 48V, and the four batteries are arranged in a 2*2 array in a corresponding basically rectangular parallelepiped battery box. The direction from the front to the rear) is set under the pedals of the electric bicycle, so the structure of the electric bicycle is restricted by the dimensions (length) of the standard lead-acid battery, which makes it impossible to install the pedal assembly, so when the electric bicycle is on the way When the power is exhausted, it can only be pushed, which will bring trouble to the user

Images