Disconnect for a charging unit for an electric vehicle

• US 8,390,247 B1
• Filed: 12/27/2010
• Issued: 03/05/2013
• Est. Priority Date: 02/07/2007
• Status: Expired due to Fees

• Current Assignee: David Moffat Harris, Scott C Harris
• Original Assignee: David Moffat Harris, Scott C Harris
• Inventors: Harris, David M., Harris, Scott C.
• Primary Examiner(s): Tso, Edward
• Assistant Examiner(s): Omar, Ahmed
• Application Number:
  US12/979,262
• Time in Patent Office: 799 Days
• Field of Search: 320/104
• US Class Current: 320/104
• CPC Class Codes: B60L 2210/20 AC to AC converters
• CPC Class Codes: B60L 2250/12 by confirmation, e.g. of the input
• CPC Class Codes: B60L 2250/16 by display
• CPC Class Codes: B60L 3/04 Cutting off the power supply under fault conditions protective devices and circuit arrangements in general H01H; H02H
• CPC Class Codes: B60L 53/16 Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
• CPC Class Codes: B60L 53/18 Cables specially adapted for charging electric vehicles
• CPC Class Codes: H01M 10/44 Methods for charging or discharging circuits for charging H02J7/00
• CPC Class Codes: H01R 13/6205 Two-part coupling devices held in engagement by a magnet
• CPC Class Codes: H01R 13/6395 for wall or panel outlets
• CPC Class Codes: H01R 9/2441 with built-in overvoltage protection
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 10/72 Electric energy management in electromobility
• CPC Class Codes: Y02T 90/12 Electric charging stations
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles

Abstract

A device for a plug in vehicle includes a cord with a ball-like covering that allows it to be dropped. The cord bounces when dropped, and no damage is caused. There is also an electrical actuator that is based on when the vehicle is in a mode that allows it to be charged. When the vehicle is in the charge mode, the actuator either magnetically attracts the cord, or tightens against the cord to hold it more tightly If the vehicle is put in reverse, for example, the actuator is deenergized, and the cord is less tightly held, facilitating its disconnection.

Claims

1. A method, comprising:

receiving connection of an electrical cord to a vehicle to charge a battery in the vehicle, where said battery that is charged is used for locomotion of the vehicle;

said vehicle having a connection portion which extends along an axis;

receiving force on said electrical cord relative to said vehicle, and pivoting said connection on said vehicle to move a direction of said axis to face in a direction of said force, said direction being such that said force pulls on said connection portion in a direction parallel to said axis; and

said force causing said electrical cord to separate from said vehicle while maintaining said axis parallel to said force in any of plural different orientations of said electrical cord relative to said vehicle; and

further comprising

said connection in both up and down directions relative to the vehicle and in side to side directions relative to the vehicle, over a range of movement which is substantially continuous between outer edges of a range of movement.

2. The method as in claim 1, wherein said moving comprises moving a first spherical portion within a holding portion.

3. The method as in claim 2, wherein said moving comprises moving the first spherical portion inside a second spherical portion, where said first spherical portion has an outer surface that is spherical and said second spherical portion has an inner surface that is spherical, and said first spherical portion is held captive within said second spherical portion.

4. The method as in claim 1, further comprising operating said vehicle using said battery which is charged by a source of power over said electrical cord, and is used for locomotion of said vehicle.

5. The method as in claim 1, further comprising detecting a connection of said electrical cord to said vehicle, and automatically preventing said vehicle from being placed into a driving mode when said detecting detects said connection is made, and allows said vehicle to placed into a driving mode when said detecting detects said connection is not made.

6. A method, comprising:

receiving connection of an electrical cord to a vehicle to charge a battery in a vehicle that is used for locomotion of the vehicle;

detecting said connection of said electrical cord to said vehicle; and

allowing said vehicle to be started but automatically preventing said vehicle from being placed into a driving mode when said detecting detects said connection is made, and allowing said vehicle to be placed into a driving mode when said detecting detects said connection is not made;

receiving force on said electrical cord relative to said vehicle, and moving said connection on said vehicle to move a direction of an axis of a connection to face in a direction of said force in a direction such that said force acts on said connection in a direction parallel to said axis, said moving said moving comprising moving a connector within the vehicle; and

said force causing said electrical cord to separate from said vehicle while maintaining said axis parallel to said force in a number of different orientations of said electrical cord relative to said vehicle.

7. A method as in claim 6, where said automatically preventing detects said vehicle being taken out of a park gear.

8. A method as in claim 6, where said automatically preventing comprises allowing the vehicle to be started, but prevents the vehicle from moving.

9. A method as in claim 6 further comprising detecting said connection of said electrical cord to said vehicle;

and

allowing said vehicle to be started but automatically preventing said vehicle from being placed into a driving mode when said detecting detects said connection is made, and allowing said vehicle to be placed into a driving mode when said detecting detects said connection is not made similar.

10. A method of charging a vehicle, comprising:

receiving connection of an electrical cord to a vehicle to charge a battery in the vehicle, where said battery that is charged is used for locomotion of the vehicle;

said vehicle having a connector which receives a mating connector, wherein a direction of insertion and removal between said connector and said mating connector is along an axis defined by a straight line along said direction;

receiving force on said electrical cord relative to said vehicle, and moving said connector on said vehicle to move a direction of said axis such that said connector always faces in a direction of said force, said direction being such that said force pulls on said connector in a direction parallel to said axis and parallel to said direction of insertion and removal; and

said force causing said electrical cord to separate from said vehicle while maintaining said axis parallel to said force in any of plural different orientations of said electrical cord relative to said vehicle.