Power supply device for bicycle

A technology for power supply devices and bicycles, which is applied to bicycles, circuit devices, bicycle accessories, etc., and can solve the problems of reducing the life of the power storage unit, increasing the volume of the device, and difficulty in installing compact devices.

Inactive Publication Date: 2004-10-06
SHIMANO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the temperature of the power storage unit rises, the performance of the power storage unit decreases, which may shorten the life of the power storage unit
In order to prevent this, if heat protection measures are taken to cover the power storage part with a heat insulating material, the volume of the device will increase, and it will be difficult to mount the device on the bicycle compactly.

Method used

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  • Power supply device for bicycle
  • Power supply device for bicycle
  • Power supply device for bicycle

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment

[0037] exist figure 1 Among them, the bicycle adopting an embodiment of the present invention is a light vehicle, and has a frame 1 with a double-ring frame body 2 and a front fork 3, a handle portion 4, a drive portion 5, and a generator hub 8 with a brake. The front wheel 6, the rear wheel 7 on which the built-in speed change hub 10 is installed, the speed change operation part 20 for operating the built-in speed change hub 10 by hand, and the speed change device 12 for controlling the speed change of the built-in speed change hub 10 according to the operation of the speed change operation part 20.

[0038] The frame body 2 of the frame 1 is fabricated by welding pipes. Each part including the saddle 11 and the drive part 5 is attached to the frame body 2 . The front fork 3 is installed on the front part of the frame body 2 so as to be tilted and freely swing around the shaft.

[0039] The handle portion 4 has a handle pole 14 fixed on the top of the front fork 3 and a ha...

no. 2 Embodiment

[0070] In the first embodiment, an example in which the alternator 19 was used as the power source was shown, but the present invention is also applicable to a device using a DC power source such as a battery. exist Figure 9 In the second embodiment of the present invention, the shift control unit 51 is connected to a battery 50 as a DC power source, and is operated by electric power from the battery 50 . The power storage element 52 is connected in parallel with the battery 50 . The power storage element 52 is composed of a large-capacity capacitor such as an electric double layer capacitor that stores electric power supplied from the battery 50 , and has one end grounded. The electric power stored in the power storage element 52 is supplied to the shift control unit 51 and the motor driver 28 .

[0071] A first switch unit 53 is connected between the battery 50 and the power storage element 52 . The first switch unit 53 turns on and off the electric power supplied from t...

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PUM

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Abstract

A bicycle power supply apparatus comprises a battery unit (32), a bicycle condition detecting unit (25) that detects when a bicycle is in a selected condition that ordinarily does not require drawing current from the battery unit (32) for powering a current drawing element; and a current drawing unit that causes current to be drawn from the battery unit (32) when the bicycle condition detecting unit (25) detects the selected condition.

Description

technical field [0001] The present invention relates to a power supply device, in particular to a bicycle power supply device that stores electric power from a DC or AC power supply that can be mounted on a bicycle and supplies it to electrical equipment (electrical equipment) that can be mounted on the bicycle. Background technique [0002] In recent bicycles, electrically controllable electrical components such as a gear shifting device, a suspension device, and a display device, and electrical components such as a control device are used. For example, there is known a technique in which a speed sensor is provided so that a transmission of a bicycle automatically shifts gears according to the speed. [0003] A bicycle using such electrical equipment requires a power supply device for supplying electric power to a display device, a control device, and a shifting device. A battery is used as such a conventional power supply device for a bicycle, and electric equipment is op...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62J6/02B62J6/00B62J6/16B62J99/00H02J7/00H02J7/14H02J7/34H02M7/06
CPCB60L11/1801Y02T10/725Y02T10/7044B60L2210/20B60L11/1859B62J6/06B62M25/08Y02T10/7005B60L11/1872B60L1/16B62J6/003B60L2200/12B60L2250/16Y02T10/705H02J7/1407B62M6/90B60L11/1861B60L50/20B60L58/25B62J6/015Y02T10/70Y02T10/72
Inventor 北村智
Owner SHIMANO INC
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