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Hub dynamo

A technology of hub generators and wheels, which is applied in the direction of electrical components, electromechanical devices, electric components, etc., and can solve problems such as the inability to exert the performance of designed hub generators

Inactive Publication Date: 2016-04-13
MITSUBA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, among the two stator units, the coil drawn from one stator unit provided on the opposite side to the direction in which the coil is pulled out has to be pulled out over the other stator unit, and it may not be possible to exhibit design or hub generator performance

Method used

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Experimental program
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Embodiment approach 1

[0054] will be based on Figure 1 to Figure 9 Embodiments of the present invention will be described.

[0055] figure 1 It is an installation schematic diagram of the in-wheel generator 10. In addition, in the following description, the case where the in-wheel dynamo 10 which concerns on this invention is attached to the wheel axle 11 of the bicycle 1, and it supplies electric power to the headlight 4 of the bicycle 1 is demonstrated. In this headlamp 4, a filament type bulb or an LED lamp can be used. In the lamp driving circuit, a circuit for rectifying and synthesizing the output of the in-wheel generator 10 is added.

[0056] (Installation form of hub generator)

[0057] Such as figure 1 As shown, a front wheel (wheel) 5 of a bicycle 1 is rotatably supported via a wheel shaft 11 through a front fork (Front Fork) 3 constituting a part of a frame (Frame). Both sides of the wheel shaft 11 are non-rotatably fastened to the front fork 3 by nuts (Nuts) (not shown) or the l...

no. 2 approach

[0155] (Second embodiment) (hub dynamo)

[0156] Next, the Figure 10 , Figure 11 A second embodiment of the present invention will be described. In addition, the same code|symbol is used about the same form as the said 1st Embodiment, and description is abbreviate|omitted.

[0157] Figure 10 It is a sectional view of the in-wheel generator 210 in the second embodiment of the present invention.

[0158] Such as Figure 10 As shown, the difference between the aforementioned first embodiment and the second embodiment is that in the first embodiment, the connecting portion 96 is formed on the bobbin 92 of the first stator unit 20A, but in the second embodiment, the first stator unit The communication portion 96 is not formed on the bobbin 292 of the subunit 220A. In addition, in the slit portion 91a of the stator core 91 of the first stator unit 20A, and the slit portion 91a of the stator core 91 of the second stator unit 20B, the slits inserted into the two slits 91a are...

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Abstract

This hub dynamo (10) is provided with: a rotor having a body section at the inner peripheral surface of which a permanent magnet is formed; at least two stator units (20A, 20B) that are disposed at the inside of the body section and that are a first stator unit (20A) having a first coil (93a) wound in a cylindrical shape, and a second stator unit (20B) having a second coil wound in a cylindrical shape; and a vehicle wheel axle (11) that is provided in a manner so as to penetrate the inside in the radial direction of each coil (93a, 93b) and to the outside of which each stator unit (20A, 20B) is fitted and affixed. The first stator unit (20A) has a coupling section to which the second coil (93b) is routed.

Description

technical field [0001] The invention relates to a hub dynamo (HubDynamo). [0002] This application claims priority with respect to Japanese Patent Application No. 2013-202491 for which it applied in Japan on September 27, 2013, and uses the content here. Background technique [0003] Dynamos that generate electricity by rotation of wheels are widely used in order to supply electric power to lighting devices such as headlights and taillights of bicycles. There are various structures of such generators, and a so-called hub generator mounted on a wheel axle is known. [0004] The hub dynamo includes a stator unit (Stator Unit) (stator) fixed to the wheel shaft side, and a rotor (Rotor) configured to freely rotate around the wheel shaft. [0005] The stator unit is composed of a pair of main iron cores forming a coil chamber fitted on the outer peripheral side of the wheel shaft; a plurality of sub-iron cores to be arranged between the pair of main iron cores to partition the...

Claims

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Application Information

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IPC IPC(8): B62J6/12H02K21/22
CPCB62J6/12H02K1/145H02K21/22H02K2213/03
Inventor 力石真田边拓人
Owner MITSUBA CORP