Electrical power generating tire system

• US 6,291,901 B1
• Filed: 06/13/2000
• Issued: 09/18/2001
• Est. Priority Date: 06/13/2000
• Status: Expired due to Term

• Current Assignee: Ćefo, Nevres
• Original Assignee: Ćefo, Nevres
• Inventors: Ćefo, Nevres
• Primary Examiner(s): Waks, Joseph
• Application Number:
  US09/592,800
• Time in Patent Office: 462 Days
• Field of Search: 290/1.R, 310/15, 310/13, 310/14, 310/75.C, 310/36, 322/3
• US Class Current: 290/1.00R
• CPC Class Codes: B60L 8/00 Electric propulsion with power supply from forces of nature, e.g. sun or wind
• CPC Class Codes: H02K 35/02 with moving magnets and stationary coil systems
• CPC Class Codes: Y02T 10/64 Electric machine technologies in electromobility
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/16 Information or communication technologies improving the operation of electric vehicles

Abstract

A method and device for generating electrical energy from the rotation of a wheel of a vehicle is disclosed. The device is disposed within a pneumatic tire and includes a coil housing having an interior chamber with a coil disposed thereabout, which is aligned for receiving a magnet within the chamber. The magnet is mounted within a magnet housing which has a first end aligned for reception in the groove of the coil housing, and a second end in communication with the interior wall of a tire. As the tire rotates, the tire deflection causes relative motion between the magnet and the coil generating electricity.

Claims

1. An electrical power generating device for generating electricity from a deflection of a tire, the device comprising:

a coil housing having a first end for mounting to a hub of a wheel, and an interior chamber with a electrically conductive coil disposed about said chamber;

a magnet housing having a first end for mating engagement with said coil housing and a second end for engagement with an interior wall of said tire;

said magnet housing further comprising a magnet assembly aligned for reception within the interior chamber of the coil housing so that the deflection of the tire directs the magnet housing radially inward so that the magnet assembly moves relative to the coils disposed within the chamber resulting in electricity being generated.

2. The device of claim 1 wherein the coil housing further comprises a second end having a groove and a spring is disposed within the groove which normally biases the magnet assembly away from said coil housing.

3. The device of claim 1 wherein the first end of the magnet housing is annular and aligned for reception within a groove of said coil housing.

4. An electrical power generating device for generating electricity from a deflection of a tire, the device comprising:

a coil housing having a first end for mounting to a hub of a wheel, and an interior chamber with a electrically conductive coil disposed about said chamber;

a magnet housing having a first end for mating engagement with said coil housing and a second end further comprising a roller for engagement with an interior wall of said tire;

said magnet housing further comprising a magnet assembly aligned for reception within the interior chamber of the coil housing so that the deflection of the tire directs the magnet housing radially inward so that the magnet assembly moves relative to the coils disposed within the chamber resulting in electricity being generated.

5. An electrical power generating device for generating electricity from a deflection of a tire, the device comprising:

a coil housing having a first end for mounting to a hub of a wheel, and an interior chamber with a electrically conductive coil disposed about said chamber;

a magnet housing having a first end for mating engagement with said coil housing and a second end for engagement with an interior wall of said tire, wherein said tire further comprises an inner protrusion;

said magnet housing further comprising a magnet assembly aligned for reception within the interior chamber of the coil housing so that the deflection of the tire directs the magnet housing radially inward so that the magnet assembly moves relative to the coils disposed within the chamber resulting in electricity being generated.

6. A method for generating electrical energy comprising:

mounting a coil housing to the hub of a wheel of a vehicle, said coil housing having an interior chamber with a coil disposed about said chamber;

disposing a magnet housing having a permanent magnet mounted therein and aligned for engagement within the chamber of the coil housing, and a distal end in communication with an interior wall of the tire; and

rotating the wheel so that deforming the tire results in relative movement between the magnet assembly and the coil so that electricity is generated.

7. An electrical power generating device for generating electricity from a deflection of a tire, the device comprising:

a coil housing having a first end for mounting to a hub of a wheel, and an interior chamber with a electrically conductive coil disposed about said chamber;

a magnet housing having a first end for mating engagement with said coil housing and a second end for engagement with an interior wall of said tires;

said magnet housing further comprising a magnet assembly aligned for reception within the interior chamber of the coil housing so that the deflection of the tire directs the magnet housing radially inward so that the magnet assembly moves relative to the coils disposed within the chamber resulting in electricity being generated; and

said magnet and said magnet housing being mounted so that they rotate with said wheel.