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Electric bicycles and hub devices for electric bicycles

A technology of electric bicycles and hubs, which is applied in the direction of electric vehicles, power management, control drive, etc., and can solve problems such as increased manufacturing costs, inability to perform braking actions, and inability to perform regenerative actions.

Active Publication Date: 2019-11-19
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] As a result, during high-speed running such as downhill coasting, the regenerative operation cannot be performed, and the battery cannot be charged, or the braking operation accompanying the regenerative operation during high-speed running cannot be performed.
In addition, cutting devices such as FETs may be required, or a large cutting device may be required, resulting in an increase in manufacturing costs and an increase in heat generation.

Method used

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  • Electric bicycles and hub devices for electric bicycles
  • Electric bicycles and hub devices for electric bicycles
  • Electric bicycles and hub devices for electric bicycles

Examples

Experimental program
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Embodiment Construction

[0047] Next, an electric bicycle and a hub device for an electric bicycle according to an embodiment of the present invention will be described with reference to the drawings. In addition, the left-right direction and the front-back direction demonstrated below refer to the direction of the state which rides this electric bicycle toward a traveling direction. In addition, the embodiment shown here is an example after all, and this invention is not necessarily limited to this embodiment.

[0048] figure 1 , figure 2 An electric bicycle according to an embodiment of the present invention is shown. Such as figure 1 , figure 2 As shown, this electric bicycle 1 is provided with: a metal frame 2 composed of a head pipe 2a, a front fork 2b, a main pipe 2c, a seat pipe 2d, a chain frame 2e, a seat frame 2f, etc., and a rotatably mounted lower end of the front fork 2b The front wheel 3 and the rear wheel 4 are rotatably attached to the rear end of the chain stay 2e. In addition...

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PUM

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Abstract

The hub device (50) is provided on the rear wheel, and the hub device (50) includes: a hub shaft (51) that can be attached to the frame; and a hub body (52) that can rotate freely around the hub shaft (51) set, and rotate integrally with the rear wheel; as the rear sprocket (14) of the rotating wheel body, it outputs the passive rotational force received by the rear wheel from the ground to the drive unit; the passive rotational force deceleration transmission path (X2), its The passive rotational force transmitted to the hub main body (52) is decelerated to a rotational speed smaller than that of the hub main body (52), and then transmitted to the rear sprocket (14).

Description

technical field [0001] The present invention relates to an electric bicycle and a hub device for the electric bicycle, and more particularly to an electric bicycle and a hub device for the electric bicycle capable of regenerative operation. Background technique [0002] Conventionally known electric bicycles (also referred to as electrically assisted bicycles) have a storage battery as a power source, a drive unit provided with a motor powered by the storage battery, and are driven by human power generated by pedaling force applied to the pedals. Together with the auxiliary driving force (assist force) of the drive unit, it is possible to travel easily even when going uphill. In addition, among such electric bicycles, electric bicycles capable of so-called regenerative operation are also known, that is, when traveling downhill, etc., the rotational force of the wheel (also referred to as passive rotational force) is transmitted to the electric motor, and the electric bicycle...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62M6/55B60L15/20B62M1/10F16D41/12
CPCB62M6/55B60L15/20F16D41/26F16D41/30Y02T10/72B62M11/16B62M11/18
Inventor 川上将史吉村昌也
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD