CN2908294Y

CN2908294Y - Vehicle wheel power generation device

Info

Publication number: CN2908294Y
Application number: CN 200620023510
Authority: CN
Inventors: 任义军; 赵丰伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-02-13
Filing date: 2006-02-13
Publication date: 2007-06-06
Anticipated expiration: 2016-02-13

Abstract

The utility model discloses a bicycle wheel power-generation device. The shell of the inner micro generator is fixingly connected with the wheel hub or the wheel spokes, a gear is fixingly connected with the wheel shaft, and a speed-changing transmission gear is connected with the main shaft of the micro generator at one end and with the gear on the wheel shaft at the other end. The multi-stage speed-changing device enables normal operation of the micro generator, whether the riding speed is high or low, enables adequate power output, and enables normal flashing or operating of the luminous tube or the micro sound system on the spokes. The shell of the inner micro generator is fixingly connected with the wheel hub or the wheel spokes, and is thus synchro rotated with the wheel, avoiding the problem of dynamic balancing. Only a micro power generator is needed for fulfillment of power supply requirements of the device, so the production cost is reduced.

Description

A kind of wheel power-generating device

Technical field

The utility model relates to a kind of accessory device of bicycle, specifically a kind of wheel power-generating device.

Background technology

By the applicant in the CN200520024486.9 of first to file patent, it is a kind of dynamic glittering device that can on bicycle, install, its structure is that the some light-emitting diodes that will be electrically connected with microgenerator are arranged on the vehicle wheel spoke of bicycle, microgenerator is fixed on the support, the affixed axle sleeve in the center of support, axle sleeve are fixed on the wheel hub of cycle wheel; The miniature gears of installing on the variable gear of socket on the axle sleeve and microgenerator spindle nose is meshed.This proprietary design with the power facility of the synchronous rotary electrification of cycle wheel, overcome the defective that the close coupled type power facility can't improve generator speed, the power supply that has saved fixed position needs the labyrinth parts such as carbon brush of usefulness to the rotary part transmission of electricity.But because this device is the one-level transmission device transmission by miniature gears on the microgenerator spindle nose and the direct engaged transmission of variable gear, thereby only when the speed of a motor vehicle is very fast, could guarantee the normal electricity output of microgenerator, make the light-emitting diode on the vehicle wheel spoke normally glittering.And, 2-3 platform microgenerator balancedly being set in the support domestic demand for the rotary balance of assurance device, this just makes the corresponding raising of installation cost.

The utility model content

The purpose of this utility model just provides a kind of no matter speed of a motor vehicle speed all can make the microgenerator normal operation, guarantees the wheel power-generating device of the power device normal operation such as luminotron on the vehicle wheel spoke.

The utility model is achieved in that this wheel power-generating device is that casing with the built-in miniature electrical generator is fixed on the wheel hub or vehicle wheel spoke of wheel, on axletree, be connected with gear, between the main shaft of microgenerator and this gear, be connected to the gear change transmission device.

The variable transmission mechanism that the utility model adopts can be set two-stage or multi-change speed transmission device as required for, speed change efficient is improved, like this, speed of a motor vehicle speed no matter, all can make the main shaft of microgenerator keep certain rotating speed, thereby make microgenerator be able to normal operation, export enough electric power, guarantee that the luminotron on the vehicle wheel spoke can be normally glittering, other power devices can normal operation.Because being the casing with the built-in miniature electrical generator, this device is fixed on the wheel hub or vehicle wheel spoke of wheel, rotate synchronously with wheel, there is not relative motion, thereby there is not a dynamically balanced problem, and because the raising of revolution ratio only needs a microgenerator can satisfy the needs of the normal operation of power device, so only disposed a microgenerator in this device, simplify apparatus structure thus, reduced productive costs.

Description of drawings

Fig. 1, Fig. 2 are the structural representations of two kinds of specific embodiment of the utility model.

The specific embodiment

Embodiment 1: as shown in Figure 1, cross-under wheel shaft 2 in the wheel nave 10 of bicycle or other similar vehicles is socketed with gear 1 between wheel hub 10 and wheel stand 3, by the nut that screws in wheel shaft 2 ends, and can be with gear 1 fastening location.The casing 8 that microgenerator 7 is housed is fixed on the vehicle wheel spoke by fixed connecting piece.Between the main shaft of microgenerator 7 and gear 1, be connected to the gear change transmission device.This gear change transmission device is the secondary gear variable transmission mechanism that is fixed on the casing 8.Its structure is that axle 9 is housed on casing 8, and external miniature gears 4 is meshed with gear 1 on the axle 9, and the miniature gears of installing on the gear 5 that connects on spools 9 and the microgenerator 7 main shaft spindle noses 6 is meshed.

When vehicle ', wheel, the casing 8, microgenerator 7 and the gear change transmission device that are fixed on the vehicle wheel spoke all rotate synchronously with wheel, and the gear 1 that is fixed on the wheel hub 2 then keeps quiescence together with wheel shaft 2.Relative motion between miniature gears 4 and the gear 1 makes the two produce engaged transmission.The gears 5 that rotate synchronously with miniature gears 4 by with the engaged transmission of gear 6, drive the main shaft high speed rotating of microgenerator 7, thereby send the current consumer of appendix onboard, as luminotron or the required electric power of Miniature acoustics.

Embodiment 2: structure member, connection mode and the principle of work etc. of the device among embodiment shown in Figure 2 and the embodiment 1 are all basic identical, and difference only is that the casing 8 with built-in miniature electrical generator 7 is fixed on the wheel nave 10 by plurality of fixed attaching parts 11.The advantage of this installation connection mode is that casing is fixed comparatively firmly.Certainly, also can be undertaken between casing 8 and the wheel hub 10 by other technological means suitable, that prior art is known affixed, as long as make casing 8 and wheel hub keep being synchronized with the movement.

In two above-mentioned embodiment, the gear change transmission device that is adopted is the secondary gear variable transmission mechanism.If desired, also can adopt three grades or more multistage gear change transmission device, accordingly, bolster be set up on casing by a need and the engaging tooth wheels get final product.But its structure also with regard to corresponding complexity some.

The utility model is used on the bicycle, can make microgenerator 7 generatings in the process of riding.Institute's electricity can make device normal operation such as the illuminating part that is provided with or is installed on the bicycle or Miniature acoustics circuit.Devices such as these illuminating parts or Miniature acoustics circuit can be arranged on the vehicle wheel spoke, by realizing being electrically connected with the mouth of microgenerator 7 attached to the lead on the vehicle wheel spoke.

Can select very thin enamel wire for use attached to the lead on the vehicle wheel spoke, a kind of implementation preferably is to have on vehicle wheel spoke in order to embed the radial groove of thin wire, enamel wire is embedded in this groove, cover with the varnish brushing again, it is attached on the vehicle wheel spoke securely.Like this, both be convenient to the daily cleaning of vehicle wheel spoke, can have reduced the possibility of being broken because of separating again effectively, improved service life, the normal operation of assurance device with spoke.

Claims

1, a kind of wheel power-generating device, the casing (8) of built-in miniature electrical generator (7) is fixed on the wheel hub or vehicle wheel spoke of wheel, it is characterized in that on axletree (2), being connected with gear (1), between the main shaft of microgenerator (7) and this gear (1), be connected to the gear change transmission device.

2, wheel power-generating device according to claim 1 is characterized in that described gear change transmission device is for being fixed on the secondary gear variable transmission mechanism on the casing (8).

3, wheel power-generating device according to claim 2, it is characterized in that the secondary gear variable transmission mechanism is that axle (9) is housed on casing (8), axle (9) is gone up external miniature gears (4) and is meshed with gear (1), and the miniature gears of installing on the gear (5) that connects on the axle (9) and microgenerator (7) the main shaft spindle nose (6) is meshed.

4, wheel power-generating device according to claim 4 is characterized in that having on vehicle wheel spoke in order to embed the radial groove of thin wire.