System for flexible electrical and mechanical installation of an electric vehicle charging station

• US 9,610,851 B2
• Filed: 05/29/2012
• Issued: 04/04/2017
• 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): Berhanu, Samuel
• Assistant Examiner(s): RANKINE, TARIKH KANEM
• Application Number:
  US13/482,145
• Publication Number:
  US 20130020990A1
• Time in Patent Office: 1,771 Days
• 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 53/30 Constructional details of charging stations
• 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: H02J 2310/48 for electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: H02J 3/322 the battery being on-board an electric or hybrid vehicle, e.g. vehicle to grid arrangements [V2G], power aggregation, use of the battery for network load balancing, coordinated or cooperative battery charging
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• 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

Abstract

An electric vehicle charging apparatus is disclosed. The electric vehicle charging apparatus has a housing body that is configurable to provide a number of electrical connection options, such as bottom and rear corded options as well as direct wired options. In another aspect, a mounting installation of the electric vehicle charging apparatus is provided. In yet another aspect, a housing body having a first front cavity and a second front cavity is provided. An inner cover covers the second front cavity, and a maximum amperage set switch is operable to set a maximum charge amperage for the electric vehicle charging apparatus. Methods of configuring the electric vehicle charging apparatus are provided, as are other aspects.

Claims

1. An electric vehicle charging apparatus, comprising:

a housing having a body with a first front cavity,

a second front cavity, and

a first rear cavity wherein the first front cavity and the second front cavity are separated from the first rear cavity by an intermediate wall, and at least one electrical terminal in the first front cavity,

the body having a first wiring entry through a peripheral wall of the body connecting directly into the first front cavity and a second wiring entry into the first front cavity from the first rear cavity,

the first wiring entry and the second wiring entry being configured to provide a plurality of electrical power connection options to provide power to the at least one electrical terminal located in the first front cavity, a divider wall separating the first front cavity from the second front cavity, and a lid coupled to the body, a first inner cover under the lid and covering the second front cavity but not the first front cavity,

wherein the lid covers the first inner cover and the first front cavity when closed and exposes the at least one electrical terminal when open, the second front cavity containing at least a contactor and a charging cable extending into the second front cavity, the first front cavity containing the at least one electrical terminal, the plurality of electrical power connection options comprising;

an outside cord option wherein an outside cord and coupled outside electrical plug are adapted to electrically connect to an electrical receptacle located outside of a footprint of the body, and the outside cord is received through the first wiring entry and connected to the at least one electrical terminal;

a rear receptacle mount option wherein a rear cord and coupled rear electrical plug are received in the first rear cavity and the adapted to electrically connect to an electrical receptacle located inside of the footprint of the body wherein the rear electrical cord is received through the second wiring entry but not through the first wiring entry and connected to the at least one electrical terminal.

2. The electric vehicle charging apparatus of claim 1, wherein the plurality of electrical power connection options further comprises:

an outside direct wire option wherein an outside electrical cable is adapted to electrically connect to a panel, and the electrical cable is received through the first wiring entry.

3. The electric vehicle charging apparatus of claim 1, wherein the plurality of electrical power connection options further comprises:

a rear direct wire option wherein a rear electrical cable is adapted to electrically connect through a gang box, and the rear electrical cable is adapted to pass through the second wiring entry.

4. The electric vehicle charging apparatus of claim 1, comprising a second rear cavity receiving a first portion of a charging cable adapted to electrically connect to an electric vehicle and a second portion of the charging cable extending into a second front cavity.

5. The electric vehicle charging apparatus of claim 1, comprising a sealed removable plug interchangeable between the first wiring entry and the second wiring entry.

6. The electric vehicle charging apparatus of claim 1, comprising a second inner cover under the lid covering the first inner cover wherein the second inner cover comprises a transparent or translucent material.

7. The electric vehicle charging apparatus of claim 6, wherein the second inner cover comprises a light guide configured to receive and guide, internally within the light guide, light to light exit regions located on opposite sides of the housing.

8. The electric vehicle charging apparatus of claim 1, comprising a lid coupled to the body and a post on the lid adapted to mount a charging connector.

9. The electric vehicle charging apparatus of claim 1, comprising a lid coupled to the body, and a safety cover under the lid and mounted over the at least one electrical terminal in the first front cavity.

10. The electric vehicle charging apparatus of claim 1, comprising one or more low voltage electrical terminals or communication terminals located within the first front cavity configured to provide data communication with a home network cable, a utility service communication cable, or other data communication cable.

11. The electric vehicle charging apparatus of claim 1, comprising:

a shield;

a printed circuit board under the shield;

a maximum amperage set switch operable by a user through the shield with the first inner cover secured to the body the maximum amperage set switch operable to adjustably limit an amperage delivered to an electric vehicle.

12. The electric vehicle charging apparatus of claim 1, comprising a maximum amperage set switch accessible by removing a lid to set a maximum charge amperage of the electric vehicle charging apparatus, maximum amperage set switch operable to adjustably limit an amperage delivered to an electric vehicle to between about 8 A and 75 A.

13. An electric vehicle charging apparatus installation, comprising:

a housing of an electric vehicle charging apparatus having a lower housing mounting feature and an upper housing mounting feature; and

a mounting bracket having a location feature comprising a cutout portion adapted to locate relative to an electrical receptacle by registering on a side of a cover or gang box, the mounting bracket having one or more installation features adapted to install the mounting bracket to a structure adjacent to the electrical receptacle, a lower bracket mounting feature adapted to receive the lower housing mounting feature, and an upper bracket mounting feature adapted to receive the upper housing mounting feature wherein one or both of the lower housing mounting feature and the upper housing mounting feature include first apertures, and one or both of the lower bracket mounting feature and the upper bracket mounting feature include second apertures, and the first and second apertures are aligned as installed.

14. An electric vehicle charging apparatus, comprising:

a housing having a body, a lid coupled to the body, and a first inner cover coupled to the body under the lid, the first inner cover and body forming a front cavity containing a contactor;

a maximum amperage set switch accessible under the lid and through the first inner cover and operable to adjust a maximum charge amperage for the electric vehicle charging apparatus, wherein the maximum amperage set switch is operable to manually adjust an amperage setting delivered to an electric vehicle to between about 8 A and 75 A with the first inner cover installed; and

a lower housing mounting feature and an upper housing mounting feature on the body, a mounting bracket coupled to the body, the mounting bracket having a location feature comprising a cutout portion adapted to locate on an electrical receptacle by registering on a side of a cover or gang box, the mounting bracket having one or more installation features adapted to install the mounting bracket to a structure adjacent to the electrical receptacle, a lower bracket mounting feature adapted to receive the lower housing mounting feature, and an upper bracket mounting feature adapted to receive the upper housing mounting feature.

15. The electric vehicle charging apparatus of claim 14, wherein the lid seals to the housing.

16. The electric vehicle charging apparatus of claim 14, wherein the maximum charge amperage setting for the maximum amperage set switch is between about 8 A and about 75 A and the maximum amperage set switch is mounted to a printed circuit board received in a pocket of a shield received proximate the first inner cover.

17. The electric vehicle charging apparatus of claim 14, comprising a first front cavity in the body, at least one electrical terminal in the first front cavity, and a safety cover mounted over the at least one electrical terminal underneath the lid.

18. The electric vehicle charging apparatus of claim 14, comprising one or more low voltage electrical terminals or communication terminals located within the first front cavity configured to provide data communication with a home network cable, a utility service communication cable, or other data communication cable.

19. An electric vehicle charging apparatus, comprising:

a housing having a body with a first front cavity, a second front cavity, a dividing wall separating the first front cavity from the second front cavity, the second front cavity containing at least a contactor and a charging cable extending into the second front cavity, a first inner cover covering the second front cavity, a first rear cavity on a rear of the body, a first wire entry into the first front cavity from a location outside the body, and a second wire entry located between the first front cavity and the first rear cavity;

at least one electrical terminal mounted in the first front cavity;

a lid coupled to the housing;

a first inner cover under the lid and covering the second front cavity but not the first front cavity, wherein the lid covers the first inner cover and the first front cavity when closed and exposes the least one electrical terminal when open;

a safety cover mounted over the at least one electrical terminal;

one or more low voltage electrical terminals or communication terminals located within the first front cavity configured to provide data communication with a home network cable, a utility service communication cable, or other data communication cable; and

one of a plurality of electrical power connection options configured to provide electrical power to the at least one electrical terminal, the plurality of electrical power connection options being selectable to be configured between;

an outside electrical cord and coupled outside electrical plug adapted to electrically connect to an electrical receptacle located outside of a footprint of the body, wherein the outside electrical cord is received through the first wiring entry but not the second wiring entry; and

a rear cord and rear electrical plug received in the first rear cavity and adapted to electrically connect to an electrical receptacle located inside of the footprint of the body with a through connector installed in the second wiring entry.

20. A method of configuring an electric vehicle charging apparatus, comprising:

providing a housing having a body with a first front cavity and a second front cavity separated by a dividing wall, the second front cavity containing at least a contactor and a charging cable extending into the second front cavity, a first rear cavity, and at least one electrical terminal in the first front cavity, the body having a first wiring entry through a peripheral wall of the body connecting directly into the first front cavity and a second wiring entry into the first front cavity from the first rear cavity, a lid coupled to the body, a first inner cover under the lid and covering the second front cavity but not the first front cavity, wherein the lid covers the first inner cover and the first front cavity when closed and exposes the least one electrical terminal when open; and

configuring an electrical connection to the at least one electrical terminal of the electric vehicle charging apparatus to provide power in one of a plurality of electrical power connection options, the plurality of electrical power connection options being selectable to be configured between;

an outside cord option wherein an outside cord and coupled outside electrical plug are adapted to electrically connect to an electrical receptacle located outside of a footprint of the body, and the outside electrical cord is received through the first wiring entry; and

a rear receptacle mount option wherein a rear cord and coupled rear electrical plug are received in the first rear cavity and adapted to electrically connect to an electrical receptacle located inside of the footprint of the body wherein the rear electrical cord is received through the second wiring entry, but not through the first wiring entry; and

providing a removable plug or grommet in the first wiring entry or the second wiring entry that is unused.