Status indicating electric vehicle charging station, lightguide assembly and methods

• US 9,597,967 B2
• Filed: 05/29/2012
• Issued: 03/21/2017
• Est. Priority Date: 07/19/2011
• Status: Active Grant

• Current Assignee: Siemens Industry Incorporated (Siemens AG)
• Original Assignee: Siemens Industry Incorporated (Siemens AG)
• Inventors: DeBoer, John, Cowans, John Quentin, Biedrzycki, Timothy
• Primary Examiner(s): Phan, Hai
• Assistant Examiner(s): Wu, Zhen Y
• Application Number:
  US13/482,134
• Publication Number:
  US 20130021162A1
• Time in Patent Office: 1,757 Days
• Field of Search: 340/635, 320/109, 320/113, 320/115, 361627-632, 361641-647
• US Class Current: 1/1
• 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: B60L 53/305 Communication interfaces
• CPC Class Codes: B60L 53/68 Off-site monitoring or control, e.g. remote control
• CPC Class Codes: G08B 21/18 Status alarms G08B21/02 takes precedence
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from 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 90/12 Electric charging stations
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles
• CPC Class Codes: Y02T 90/16 Information or communication technologies improving the operation of electric vehicles
• CPC Class Codes: Y02T 90/167 Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: Y04S 30/12 Remote or cooperative charging

Abstract

An electric vehicle charging apparatus is disclosed. The electric vehicle charging apparatus has a housing having a body, and a light guide assembly adapted to display a status of the electric vehicle charging apparatus. The light guide assembly generates and displays one or more colors, flashing lights, or combinations thereof on a light exit region of the light guide. In another aspect, a locking hinged lid configuration of the electric vehicle charging apparatus is provided. In yet another aspect, a mechanical control panel including lighted status indicators on the lid is provided. In another aspect, the electric vehicle charging apparatus has one or more low voltage terminals contained in a first front cavity under the lid, whereas high voltage components are provided in a separate second front cavity. Methods of operating the electric vehicle charging apparatus are provided, as are other aspects.

Claims

1. An electric vehicle charging apparatus, comprising:

a housing having a periphery and a body, the body having a front, and a lid mounted to the body; and

a planar shaped light guide assembly mounted to the body and adapted to display status of the electric vehicle charging apparatus wherein the light guide assembly comprises;

a light guide having a light receiving region located under the lid and adjacent to one or more light sources,

a light exit region extending laterally out from an exterior of the housing and along a segment of the periphery, the light exit region including an expansion zone wherein a thickness of the light guide is increased, the light exit region comprising a side facing surface relative to the front, a front facing surface, and a rear facing surface wherein each of the side, front and rear facing surfaces are adapted to allow light to exit the light guide assembly,

a light guiding region under the lid and extending radially from the light receiving region to the light exit region, the light guiding region configured to project light onto the side facing surface of the light exit region and provide a halo effect about the segment of the periphery, and

wherein the light guide comprising a transparent material and the thickness of the light guide is increased upon transition at the exterior of the housing to the light exit region from the light guiding region,

wherein the light exit region including the side facing surface angled relative to the light guiding region such that to provide the halo effect, and

wherein the light exit region is viewable adjacent to an edge of the lid, when the lid is closed such that the light is conveyed by the light guide and displayed at the light exit region located on the exterior of the housing.

2. The electric vehicle charging apparatus of claim 1, wherein the status comprises at least one of:

a readiness to charge,

a charging state,

charging,

a state of charging completeness,

a fault,

a fault condition,

a charge delay,

a charge delay time,

a pause,

an operational mode,

a communication mode, and

a remote access condition.

3. The electric vehicle charging apparatus of claim 1, wherein the light exit region comprises a roughened surface.

4. The electric vehicle charging apparatus of claim 1, wherein the side facing surface has an angle relative to light emitted from the light guiding region of between about 30 degrees and 50 degrees.

5. The electric vehicle charging apparatus of claim 1, wherein the light guide assembly comprises:

one or more light sources; and

a shield having one or more restricted apertures positioned adjacent to the one or more light sources and adapted to limit spread of light emitted from the one or more light sources.

6. The electric vehicle charging apparatus of claim 1, wherein the light guide assembly further comprises:

one or more light sources; and

a shield.

7. The electric vehicle charging apparatus of claim 1, wherein the light guide assembly further comprises one or more light sources adapted to emit light into the light receiving region of the light guide wherein the one or more light sources are mounted to a printed circuit board.

8. The electric vehicle charging apparatus of claim 1, wherein the body comprises a first front cavity and a second front cavity and the light guide assembly is mounted over the second front cavity.

9. The electric vehicle charging apparatus of claim 8, comprising a first inner cover covering the second front cavity, and wherein the light guide assembly is mounted over the first inner cover.

10. The electric vehicle charging apparatus of claim 1, comprising the lid hinged to the body.

11. An electric vehicle charging apparatus, comprising:

a housing having a body, a front and a periphery, and

a lid mounted to the body; and

a planar shaped light guide assembly including

a light receiving region located under the lid and adjacent to one or more light sources,

a light guiding region under the lid and extending radially from the light receiving region to a light exit region, the light guide assembly configured and operable to generate and display one or more selected from a group consisting of one or more colors and one or more flashing lights on the light exit region extending laterally out from an exterior of the housing along a segment of the periphery that indicate a status of the electric vehicle charging apparatus, and wherein the light guide assembly includes an expansion zone wherein a thickness of a light guide of the light guide assembly is increased, the light exit region comprising a side facing surface relative to the front, a front facing surface, and a rear facing surface wherein each of the side, front and rear facing surfaces are adapted to allow light to exit the light guide assembly,

wherein the light guiding region is configured to project light onto the side facing surface of the light exit region to provide a halo effect about the segment of the periphery,

wherein the light guide comprising a transparent material and the thickness of the light guide is increased upon transition at the exterior of the housing to the light exit region from the light guiding region,

wherein the light exit region including the side facing surface angled relative to the light guiding region such that to provide the halo effect, and

wherein the light exit region is viewable adjacent to an edge of the lid, when the lid is closed such that the light is conveyed by the light guide and displayed at the light exit region located on the exterior of the housing.

12. The electric vehicle charging apparatus of claim 11, wherein the status comprises at least one of:

a readiness to charge,

a charging state,

charging,

a state of charging completeness,

a fault,

a fault condition,

a charge delay,

a charge delay time,

a pause,

an operational mode,

a communication mode, and

a remote access condition.

13. An electric vehicle charging apparatus, comprising:

a housing having a periphery and a body;

a planar shaped light guide assembly mounted to the body, the light guide assembly including a light guide extending radially from within the housing to at least one light exit region, the light guide includes an expansion zone wherein a thickness of the light guide is increased, the at least one light exit region extending laterally out from the housing and provided in one or more segments about the periphery that indicate a status of the electric vehicle charging apparatus, the light guide assembly configured to indicate a status of the electric vehicle charging apparatus as a halo effect about a segment of the periphery;

a lid coupled to the body and covering a portion of the light guide;

a first front cavity and a second front cavity within the body, the first front cavity being accessible by opening the lid and the second front cavity remains closed when opening the lid;

a charging cable exiting from the second front cavity;

one or more high voltage electric terminals in the first front cavity;

one or more low voltage electric terminals contained in the first front cavity;

a contactor and electrical connections to the charging cable located in the second front cavity; and

one or more indicators for displaying a status of the electric vehicle charging apparatus including indicators configured to display information on the lid,

wherein the light guide comprising a transparent material and the thickness of the light guide is increased upon transition at the exterior of the housing to the light exit region from the light guiding region,

wherein the light exit region including the side facing surface angled relative to the light guiding region such that to provide the halo effect, and

wherein the light exit region is viewable adjacent to an edge of the lid, when the lid is closed such that the light is conveyed by the light guide and displayed at the light exit region located on the exterior of the housing.

14. An electric vehicle charging apparatus, comprising:

a housing having a periphery, a body, and a planar shaped light guide assembly mounted to the body, the light guide assembly including a light guide extending radially from within the housing to a light exit region extending laterally out from the housing, the light guide including that includes an expansion zone wherein a thickness of the light guide is increased, wherein one or more segments of the periphery are configured to display information via a halo effect;

a lid coupled to the body and covering a portion of the light guide;

a control panel on the lid; and

lighted status indicators on the control panel, wherein the lid and control panel are devoid of electrical connections,

wherein the light guide comprising a transparent material and the thickness of the light guide is increased upon transition at the exterior of the housing to the light exit region from the light guiding region,

wherein the light exit region including the side facing surface angled relative to the light guiding region such that to provide the halo effect, and

wherein the light exit region is viewable adjacent to an edge of the lid, when the lid is closed such that the light is conveyed by the light guide and displayed at the light exit region located on the exterior of the housing.

15. A method of operating an electric vehicle charging apparatus, comprising:

providing a housing including a body and a lid mounted to the body and a planar shaped light guide assembly coupled to the housing, the light guide assembly including one or more light sources, a light receiving region under the lid and adjacent the one or more light sources, a light exit region extending laterally out from the housing, and a light guiding region under the lid and extending radially from the light receiving region to the light exit region, wherein the light guide assembly includes an expansion zone wherein a thickness of a light guide of the light guide assembly is increased, the light exit region comprising a side facing surface relative to a front of the housing, a front facing surface, and a rear facing surface wherein each of the side, front and rear facing surfaces are adapted to allow light to exit the light guide assembly; and

displaying one or more colors, flashing lights, or combinations on the side facing surface of the light exit region that indicate a status of the electric vehicle charging apparatus as a halo effect about a segment of a periphery of the housing,

wherein the light guide comprising a transparent material and the thickness of the light guide is increased upon transition at the exterior of the housing to the light exit region from the light guiding region,

wherein the light exit region including the side facing surface angled relative to the light guiding region such that to provide the halo effect, and

wherein the light exit region is viewable adjacent to an edge of the lid, when the lid is closed such that the light is conveyed by the light guide and displayed at the light exit region located on the exterior of the housing.