Device for use in generating electric power and braking, kit and brake unit of same
OwnerYuan-Kwei Tzenginventor
Life of this patent
Estimating the term…
Abstract
A device for use in generating electric power and braking, a kit and a brake unit of the same are provided. A brake body in the brake unit includes a plurality of brake blocks. The brake unit has an electromagnetic air gap which is adjustable and controllable in high precision. Therefore, the tolerance of the electromagnetic air gap between the brake unit and the wheel is made small, even without increasing the machining precision and costs of the brake unit, thereby enhancing resistance precision.
Claims16
A device for use in generating electric power and braking, comprising:
- a rotatable wheel disposed on a shaft, the wheel comprising an outer annular portion circumferentially disposed on a rim of the wheel, an inner annular portion concentric with the outer annular portion and disposed between the outer annular portion and the shaft, and a plurality of permanent magnets disposed on an inner surface of one of the outer annular portion and the inner annular portion;
- a stator unit comprising a stator body, a plurality of first serrated portions circumferentially disposed on an outer circumferential surface of the stator body and protruding radially outward, and a plurality of electric generating coils wound around the first serrated portions, wherein the first serrated portions oppose the permanent magnets;
- and
- a brake unit fixed to the stator unit and comprising a brake body concentric with the stator body, a plurality of second serrated portions circumferentially disposed on an outer circumferential surface of the brake body and protruding radially outward, and a plurality of brake coils wound around the second serrated portions, wherein the brake body comprises a plurality of brake blocks arranged in a circle.
A brake unit, for braking a rotatable wheel disposed on a shaft, the wheel comprising a protruding ring structure extending axially and being concentric with the shaft, the brake unit comprising:
- a brake body comprising a plurality of brake blocks arranged in a circle;
- a plurality of second serrated portions disposed circumferentially on an outer circumferential surface of the brake body and protruding radially outward;
- and
- a plurality of brake coils each wound around the second serrated portions.
A kit for a electric power generation and brake device, comprising:
- a wheel comprising a protruding ring structure extending axially and being concentric with a shaft;
- a brake unit comprising a brake body, a plurality of second serrated portions circumferentially disposed on an outer circumferential surface of the brake body and protruding radially outward, and a plurality of brake coils wound around the second serrated portions, wherein the brake body comprises a plurality of brake blocks arranged in a circle by a frame and a plurality of coupling elements;
- and
- a gap control jig comprising a plurality of extending plates extending axially and inserted between the protruding ring structure of the wheel and the brake unit, wherein the extending plates provide a position-limiting effect when the brake blocks not fastened in place by the coupling elements are capable of automatically adjusting their distance from the protruding ring structure under a magnetic force generated from the brake coils which electric current is passing through, wherein an electromagnetic air gap between the wheel and the brake unit attains a target size upon fastening the brake unit in place by the coupling elements, interruption of passage of electric current through the brake coils, and removal of the gap control jig.
Dependencies are inferred from the claim text.