Electric vehicle charging system including refrigerant system
First Claim
Patent Images
1. A charging system for use with an electric vehicle comprising:
- a primary coil which is excited to thereby generate an electromotive force in a secondary coil;
said secondary coil electromagnetically connected to the primary coil; and
a power battery device provided in said electric vehicle, said power battery being charged by the electromotive force generated in said secondary coil;
wherein at least one of said primary coil and secondary coil is formed of a conductive pipe and a refrigerant is allowed to flow through the interior portion of said conductive pipe to thereby cool said coil.
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Accused Products
Abstract
A charging system for use with an electric vehicle in that a primary coil 32 is structured in such a manner that a conductive pipe 34 is wound around a primary core 33. Cooling water is allowed to circulate through the conductive pipe 34, while the cooling water is cooled by a radiator device provided on the charging unit side. To the two ends of the conductive pipe 34, there are connected the core wires of a charging power cable 40 through energizing terminals 37, so that the primary coil 32 can be excited.
119 Citations
26 Claims
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1. A charging system for use with an electric vehicle comprising:
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a primary coil which is excited to thereby generate an electromotive force in a secondary coil; said secondary coil electromagnetically connected to the primary coil; and a power battery device provided in said electric vehicle, said power battery being charged by the electromotive force generated in said secondary coil; wherein at least one of said primary coil and secondary coil is formed of a conductive pipe and a refrigerant is allowed to flow through the interior portion of said conductive pipe to thereby cool said coil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A charging system for use with an electric vehicle comprising:
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a power battery device equipped in the electric vehicle which is charged by an electromotive force induced in a secondary coil provided in the electric vehicle; a high-frequency power source device for charging; a housing which is placeable in a receive portion formed in the portion of said electric vehicle in which said secondary coil is provided; a primary side core which, if it is stored in said housing and is thus set in said receive portion together with said housing, can be connected with the secondary side core of said secondary coil to thereby complete a magnetic circuit; a primary coil formed of a conductive pipe and wound around said primary side core in a heat transferable manner; a charging power cable interposed between said high-frequency power source device and a connector case for allowing a high-frequency current to flow from said high-frequency power source device to said primary coil; a refrigerant supply pipe so provided as to extend along said charging power cable for allowing a refrigerant to flow into said conductive pipe; a radiator device provided in connection with said refrigerant supply pipe for radiating the heat of said refrigerant after which is heated because the refrigerant has cooled said primary coil and said primary side core; and a circulation pump actuatable in combination with said charging operation for returning said refrigerant cooled in said radiator device to said primary coil side through said refrigerant supply pipe to thereby circulate said refrigerant. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A charging system for use with an electric vehicle comprising:
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a charging coupler which is to be mounted into a receive portion provided in the electric vehicle; a primary coil built in the charging coupler which is excited by a charging power source to thereby generate an electromotive force in a secondary coil provided on the receive portion; a battery device provided in the electric vehicle which is charged by the electromotive force generated in the secondary coil; a refrigerant circulation passage for allowing a refrigerant to circulate through said charging coupler; and a radiator that discharges heat from the refrigerant flowing through said refrigerant circulation passage; wherein said charging coupler is cooled by the circulation of said refrigerant, and wherein said primary coil of said charging coupler is formed of a conductive pipe, and said conductive pipe is formed as part of said refrigerant circulation passage so that said refrigerant is allowed to flow through said conductive pipe as well. - View Dependent Claims (17, 18)
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19. A charging system for use with an electric vehicle comprising:
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a primary coil unit provided in a charging coupler; a charging power source for exciting said primary coil unit; a secondary coil unit provided in said electric vehicle which is electromagnetically coupled with said primary coil unit, to thereby generate an electromotive force; a battery device provided in the electric vehicle which is charged by the electromotive force generated in said secondary coil unit; a primary refrigerant passage provided in said primary coil unit for cooling said primary coil unit; a secondary refrigerant passage provided in said secondary coil unit for cooling said secondary coil units; and passage joints for connecting said primary and secondary refrigerant passages to each other. - View Dependent Claims (20, 21, 22)
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23. A charging system for use with an electric vehicle comprising:
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a primary coil unit provided in a charging coupler; a charging power source for exciting said primary coil unit; a secondary coil unit provided in said electric vehicle which is electromagnetically coupled with said primary coil unit, to thereby generate an electromotive force; a battery device provided in the electric vehicle which is charged by the electromotive force generated in said secondary coil unit; wherein a refrigerant of a cooling device provided in said electric vehicle is allowed to flow through said primary coil unit or secondary coil unit to thereby cool the same. - View Dependent Claims (24, 25, 26)
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Specification