Power supply arrangement for body fitness machine
A power supply arrangement for body fitness machine is disclosed to include permanent magnets mounted on the flywheel of the body fitness machine, a rack mounted on the base frame of the body fitness machine to hold a stack of silicon steel plates, and windings mounted on the rack to act with the permanent magnets for inducing electric current for the working of the lighting circuit of the instrument panel of the body fitness machine.
1. Field of the Invention
The present invention relates to power generators and more particularly, to a power supply arrangement for body fitness machine that provides electricity to the lighting circuit of the instrument panel of the body fitness machine in an economic and efficient way.
2. Description of the Related Art
The power supply for the lighting circuit of the instrument panel of a body fitness machine may be obtained by means: (1) power adapter, (2) battery pack, or (3) power generator. Obtaining power supply through a power adapter is not a convenient way. The arrangement of the adapter cable is also bothersome. Further, when a battery pack is used, the battery cell must be replaced with a new one when power low. Frequently replacing the battery cell costs a lot. Further, when a power generator is used, the installation cost is high. Because conventional power generators commonly have a complicated structure and a big size, the use of a conventional power generator requires much installation space and cost.
SUMMARY OF THE INVENTIONThe present invention has been accomplished under the circumstances in view. It is one object of the present invention to provide a power supply arrangement for body fitness machine that comprises permanent magnets movable with the flywheel of the body fitness machine relative windings at a stack silicon steel plates at the base frame of the body fitness for causing the windings to induce electric current for the working of the lighting circuit of the instrument panel of the body fitness machine.
Referring to
According to the present preferred embodiment, the permanent magnets 11 are fastened to the periphery of the flywheel 3 by means of the magnet holders 10. Alternatively, the flywheel 3 can be made having recessed holes on the periphery for accommodating the permanent magnets 11.
Referring to
If the gap between the windings 13 and the permanent magnets 11 is changed after a long use of the body fitness machine, the user can adjust the position of the silicon steel plates 12 on the rack 14 to further adjust the gap between the windings 13 and the permanent magnets 11 subject to the original design.
Although a particular embodiment of the invention has been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims.
Claims
1. A power supply arrangement installed in a body fitness machine having a flywheel pivotally mounted on a base frame and a driving wheel for pedaling by the user to rotate said flywheel, and adapted to generate electricity for a lighting circuit of an instrument panel of said body fitness machine, the power generating device comprising:
- a plurality of magnet holders fixedly mounted on said flywheel;
- a plurality of permanent magnets fixedly mounted in said magnet holders;
- a rack fixedly mounted on the base frame of said body fitness machine;
- a stack of silicon steel plates mounted on said rack; and
- a plurality of windings mounted on said silicon steel plates for acting with said permanent magnets to induce electric current upon rotation of said flywheel.
Type: Application
Filed: Dec 28, 2007
Publication Date: Jul 2, 2009
Inventor: Chi-Chang Hsiao (Tantzu Hsiang)
Application Number: 12/003,515
International Classification: A63B 71/00 (20060101);