Contactless battery charging system
First Claim
1. A contactless charging system for charging an energy storage device, comprising:
- a primary converter for converting power from a power source into high frequency power;
a secondary converter coupled to the energy storage device for converting high frequency power into charging power to charge the energy storage device;
a conductor loop coupled to one of the primary converter and the secondary converter; and
a coupling link having a magnetic core and a core-mounted conductor at least partially surrounded by the magnetic core, the core-mounted conductor coupled to the other of the primary converter and the secondary converter, the core-mounted conductor for selectively at least partially surrounding a portion of the conductor loop to transfer power therebetween.
1 Assignment
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Accused Products
Abstract
A contactless recharging system and method for recharging an energy storage device onboard an electric vehicle has a primary converter for converting power from a power source into high frequency power. A secondary converter on board the vehicle is coupled to the battery for converting high frequency power into charging power supplied to the energy storage device. The primary and secondary converters are coupled together by a contactless coupling of a conductor loop and a coupling link forming a coaxial winding transformer. The coupling link has a magnetic core and a core-mounted conductor at least partially surrounded by the magnetic core. The core-mounted conductor selectively at least partially surrounds a portion of the conductor loop to transfer power therebetween. The core-mounted conductor is coupled to either the primary or the secondary converter, with the conductor loop being mounted to the other of the primary and the secondary converters.
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Citations
50 Claims
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1. A contactless charging system for charging an energy storage device, comprising:
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a primary converter for converting power from a power source into high frequency power; a secondary converter coupled to the energy storage device for converting high frequency power into charging power to charge the energy storage device; a conductor loop coupled to one of the primary converter and the secondary converter; and
a coupling link having a magnetic core and a core-mounted conductor at least partially surrounded by the magnetic core, the core-mounted conductor coupled to the other of the primary converter and the secondary converter, the core-mounted conductor for selectively at least partially surrounding a portion of the conductor loop to transfer power therebetween. - View Dependent Claims (2, 3, 4, 5, 6, 7, 13, 14, 15, 16, 17, 18, 19, 20, 49, 50)
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8. A contactless recharging system according to wherein the primary converter comprises a current source converter.
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9. A contactless recharging system according to wherein the primary converter comprises a voltage source converter.
- 10. A contactless recharging system ,according to wherein the secondary converter has a power conditioner tapping a portion of the transferred power and conditioning the tapped portion of the transferred power.
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21. A contactless battery charging system for charging a battery onboard an electric vehicle, comprising:
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a primary converter for converting power from a power source into high frequency power; a secondary converter on board the vehicle coupled to the battery for converting high frequency power into charging power to charge the battery; a conductor loop coupled to one of the primary converter and the secondary converter; and a coupling link having a magnetic core and a core-mounted conductor at least partially surrounded by the magnetic core, the core-mounted conductor coupled to the other of the primary converter and the secondary converter, the core-mounted conductor for selectively at least partially surrounding a portion of the conductor loop to transfer power therebetween. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A method of charging an energy storage device, comprising the steps of:
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converting power from a power source into high frequency power; providing a conductor loop coupled to one of the primary converter and the secondary converter; providing the other of the primary converter and the secondary converter with a coupling link having a magnetic core and a core-mounted conductor at least partially surrounded by the magnetic core; and selectively joining the coupling link to the conductor loop to at least partially surround a portion of the conductor loop; transferring the high frequency power between the primary and secondary converters; converting the transferred high frequency power into charging power; and charging the energy storage device with the converted charging power. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43)
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44. A method of charging an energy storage device with power from an AC power source, comprising the steps of:
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providing a conductor loop coupled to one of the energy storage device and the AC power source; providing the other of the energy storage device and the AC power source with a coupling link having a magnetic core and a core-mounted conductor at least partially surrounded by the magnetic core, the link being separable into at least two link segments; separating the at least two link segments; receiving a portion of the conductor loop between the two separated link segments; joining together the at least two link segments to surround the portion of the conductor loop with the coupling link; transferring power from the AC power source by magnetic induction between the conductor loop and the coupling link to charge the energy storage device. - View Dependent Claims (45, 46, 47, 48)
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Specification