1. Field of the Invention
The present invention relates to a power generator, and in particular to a non-contact type power generator disposed in an outer device capable of continuously rotating the non-contact type power generator to generate induced power.
2. Description of the Related Art
Based on the Fleming's left hand rule, the thumb, the forefinger and the middle finger are stretched and perpendicular to one another to represent force exerted on a conductive object, magnetic field direction (from N pole to S pole) and current direction through the conductive object respectively. The Fleming's left hand rule is also named electrical motor rule.
In such electrical motors, the coil 13 is rotated by related elements such as teeth joint elements, chains or propellers by a “direct contact” way to generate induced current, i.e. the typical electrical motor 10 must be directly connected or contacted to a driving source. Therefore, the application of such electrical motor is highly limited.
It is one object of the present invention to provide a non-contact type power generator generating induced power by means of a non-contact structure to broaden the applicable category.
To achieve this object of the present invention, one embodiment of a non-contact type power generator of the invention includes at least one metal element continuously rotated by force generated by an outer device; at lest one magnetic rotor disposed near the metal element without contact and rotated with respect to an axis by the metal element; and a coil disposed around the magnetic rotor. The metal element rotates continuously to rotate the magnetic rotor to cut the magnetic line generated by the coil to generate induced power for other devices.
In one embodiment of the present invention, the outer device is a moving vehicle and in particular a metal wheel rim serving as a dynamic metal element or steel rails or steel cables serving as a static metal element.
In one embodiment of the present invention, the magnetic rotor includes a plurality of magnetic sheets joined together, and centers of magnetic sheets overlaps to constitute the axis.
In one embodiment of the present invention, the non-contact type power generator includes a plurality of sub-coils serially connected to increase voltage.
In one embodiment of the present invention, the non-contact type power generator includes a plurality of coils parallel connected to increase current.
In one embodiment of the present invention, the magnetic rotor and the coil are coupled to a circuit board by a wire to drive a power consuming device.
In one embodiment of the present invention, the circuit board sends power to the power consuming device via a stabilizing-driving circuit.
In one embodiment of the present invention, the magnetic rotor and the coil are coupled to a circuit board by a wire and disposed in a housing which is fixed to the outer device by a frame.
In one embodiment of the present invention, the outer device is a hydraulic device driving the metal element.
Fleming's left hand rule;
The invention is detailed described by the following embodiment in accompany with drawings,
Referring to
A magnetic rotor 30 serving as the other corresponding element is disposed near the movable metal element 20 without contacting the metal element 20 and rotates continuously with respect to an axis. A coil 40 is disposed around the magnetic rotor 30. The coil 30 can be winded around a magnet conductive object such as iron sheets, silicon steel sheets or ferrite core to increase induced voltage.
Referring to
Referring to
The magnetic rotor 30 is rotatablely connected to a shaft at its center, and is rotated with respect to an axis extending through the center. The rotatable structure is used only for description but not limited thereto.
When the metal element 20 rotates continuously (such as a vehicle in traffic), the magnetic rotor 30 is continuously rotated by the attractive force generated between the metal element 20 and the magnetic rotor 30 to cut the magnetic lines generated by the coil 40 to generate induce power. The magnetic rotor and coils are possibly disposed in a vehicle in traffic (trains or cable cars) to move relative to static supporting elements (steel rails or steel cables) to generate electrical power.
The voltage and current generated by the magnetic element 30 cutting the magnetic lines depend on the following factors.
Referring to
Referring to
Although the outer device is a vehicle in this embodiment, it is not limited thereto. Other devices such as a hydraulic device can also serve as the outer device to rotate or move the metal element 20.
Since the power generator of the invention is disposed in various devices by a non-contact structure, it can be broadly applied to various equipments.
Although particular embodiments of the invention have 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.