Temperature regulation of inductive charging devices in extreme vehicle environments

• US 9,356,466 B2
• Filed: 03/27/2014
• Issued: 05/31/2016
• Est. Priority Date: 03/28/2013
• Status: Active Grant

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: GM Global Technology Operations LLC (General Motors Company)
• Inventors: Han, Taeyoung, Yen, Chih-Hung, Kaushik, Shailendra, Khalighi, Bahram, Lascu, Dan, Porrett, Kenneth L.
• Primary Examiner(s): Hoffberg, Robert J
• Application Number:
  US14/226,917
• Publication Number:
  US 20140293538A1
• Time in Patent Office: 796 Days
• US Class Current: 1/1
• CPC Class Codes: B60H 1/00271 HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
• CPC Class Codes: B60H 2001/003 Component temperature regulation using an air flow
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/90 involving detection or optimisation of position, e.g. alignment
• CPC Class Codes: H05K 7/20145 Means for directing air flow, e.g. ducts, deflectors, plenum or guides
• CPC Class Codes: H05K 7/20845 for automotive electronic casings H05K7/2089 takes precedence

Abstract

A thermal conditioning system for an inductive charging system. An open enclosure charging unit includes at least one surface generating an electromagnetic field for inductively charging a portable device. A primary conduit coupled to the open enclosure charging unit. The primary conduit outputs conditioned air to the open enclosure charging unit. The conditioned air output by the primary conduit maintains a temperature of the portable device at a predetermined temperature range within the open enclosure charging unit.

Claims

1. A thermal conditioning system comprising:

an open enclosure charging unit including at least one surface generating an electromagnetic field for inductively charging a portable device;

a conditioned air source generating conditioned air;

a primary conduit coupled to the conditioned air source and the open enclosure charging unit, the primary conduit dedicated to deliver the conditioned air only from the conditioned air source to the open enclosure charging unit;

wherein the conditioned air output by the primary conduit maintains a temperature of the portable device at a predetermined temperature range within the open enclosure charging unit.

2. The thermal conditioning system of claim 1 wherein the conditioned air source includes a vehicle heating ventilation air conditioning unit.

3. The thermal conditioning system of claim 1 wherein the primary duct is coupled to a first region of the conditioned air source where cool air is flowing, the cool air being at least a portion of the conditioned air.

4. The thermal conditioning system of claim 3 further comprising a secondary duct coupled between the conditioned air source and the primary duct for delivering heated air to the primary duct, the secondary duct is coupled to a second region of the conditioned air source where the heated air is flowing, the heated air being another portion of the conditioned air.

5. The thermal conditioning system of claim 4 wherein the preteremined temperature range of the conditioned air delivered to the open enclosure charging unit is in a range of 10°

C. to 45°

C.

6. The thermal conditioning system of claim 4 wherein a location where the secondary duct couples to the conditioned air source based on generating a maximum air flow in the secondary duct.

7. The thermal conditioning system of claim 4 wherein a location where the secondary duct couples to the conditioned air source is selected based on a predetermined pressure drop in the secondary duct.

8. The thermal conditioning system of claim 7 wherein the predetermined pressure drop is between 20-40 Pa.

9. The thermal conditioning system of claim 4 wherein the conditioned air source includes a damper and a heater core, the damper being upstream of the heater core, the damper operable between an open and closed positioned for heating air flowing within the conditioned air source.

10. The thermal conditioning system of claim 9 wherein the damper is controlled based on an interior passenger compartment setting.

11. The thermal conditioning system of claim 9 wherein the secondary duct is coupled to the second region of the conditioned air source downstream of the damper, wherein the heated air is provided to the secondary duct when the damper is in an at least a partially open position, wherein the heated air flowing through the secondary duct blends with cool air flowing in the primary duct for delivering the conditioned air to the open enclosure charging unit.

12. The thermal conditioning system of claim 9 wherein the secondary duct is coupled to the second region of the conditioned air source downstream of the damper, wherein only cool air is provided to the open enclosure charging unit in response to the damper being in a closed position, wherein the damper in the closed position prevents the heated air from flowing to the secondary duct.

13. The thermal conditioning system of claim 4 wherein a portion of the primary duct downstream from where the secondary duct joins the primary duct functions as a mixing chamber for mixing cool air flow and the heated air.

14. The thermal conditioning system of claim 4 wherein the secondary duct is disposed within a vehicle, wherein the secondary duct is a dedicated duct for only delivering the heated air from the conditioned air source to the primary duct.

15. The thermal conditioning system of claim 1 wherein the open enclosure charging unit includes an orifice that couples to the primary duct to the open enclosure charging unit for delivering the conditioned air to an interior of the open enclosure charging unit.

16. The thermal conditioning system of claim 15 wherein the orifice is directed toward the portable device within the open enclosure charging unit.

17. The thermal conditioning system of claim 1 wherein the open enclosure charging unit is disposed within an interior passenger compartment of a vehicle.

18. The thermal conditioning system of claim 1 wherein the open enclosure charging unit is disposed within an integrated console storage unit within a center console stack of a vehicle.

19. The thermal conditioning system of claim 1 wherein the open enclosure charging unit is disposed within a pocketed area of a center console.