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Power-source placement on electrically motorised bicycle

A technology of electric bicycles and electric motors, applied to bicycle frames, bicycle accessories, vehicle parts, etc., can solve the problem that bicycles cannot be assembled

Active Publication Date: 2013-01-09
PRO MOVEC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, a bicycle that lacks a carrier cannot be fitted with aftermarket modifications that have a battery pack that fits on the carrier or is adapted to hang from the carrier on one side of the rear wheel

Method used

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  • Power-source placement on electrically motorised bicycle
  • Power-source placement on electrically motorised bicycle
  • Power-source placement on electrically motorised bicycle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047] figure 1 An electric bicycle 10 according to a preferred embodiment of the present invention is shown. The electric bicycle 10 has a frame 12 rotatably connected to a rear wheel 14 and a front wheel 16 . The rear wheel serves as a drive wheel when pedaling the bicycle. A brushless DC hub motor 18 is positioned at and centered on the hub of the rear wheel 14 . The drive of the hub motors 18 is powered and controlled by a drive unit 20 . The drive unit 20 is shown with portions thereof transparent to reveal a plurality of battery cells 22, which are rechargeable lithium-ion batteries. A plurality of battery cells 22 powers the in-wheel motors 18 .

[0048] The frame 12 has a seat tube 24 , a down tube 26 , a head tube 30 and a top tube 28 connected in a closed loop in the order listed. Seat tube 24 , right chain stay 32 and right chain stay 36 are connected in a closed loop in the order listed. Similarly, the seat tube 24, left seat stay 34 and left chain stay are c...

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PUM

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Abstract

A drive unit (20) for a motorised bicycle (10) adapted to be at least partly powered by an electrical motor (18) is disclosed. The drive unit (20) comprises: a battery pack (84) including one or more battery cells (22) for providing the electrical motor with electrical energy, and a battery pack support (70, 72) for connecting the battery pack to the frame (12), where the battery pack support and the battery pack are adapted for positioning a battery cell of the one or more battery cells between the first (64) and second (66) sprockets of the motorised bicycle.

Description

technical field [0001] The present invention relates generally to electric bicycles powered by electric motors. More specifically, the present invention relates to battery packs for electric motors, and in particular to the positioning of the battery cells of the battery pack. Background technique [0002] An electric bicycle is a bicycle that has an electric motor used to power the vehicle or to assist in pedaling. The electric motor is attached to the bicycle during construction of the bicycle, or after construction of the bicycle as an aftermarket modification. The difference between electric bicycles and motorcycles is that they can be powered by pedals alone. Some e-bikes use pedals as the main form of propulsion, with the electric motor used to provide extra power, for example when going uphill, while others can be driven solely by their respective electric motors. [0003] Many e-bikes are based on a standard bike frame, for example they have a frame with a seat tu...

Claims

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Application Information

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IPC IPC(8): B62J13/04B62K19/44B62M6/90
CPCB62M6/90B62J13/04B62K19/40B62M6/60B62J43/13B62J43/20
Inventor J·拉斯姆森
Owner PRO MOVEC
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