Transformer for OBC of electric vehicle
AssigneeAtum Co., Ltd.
InventorsTaeksoo Han, Hyunchuel Kim
Life of this patent
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Abstract
A transformer for an OBC of an electric vehicle includes: a housing; a cover for opening and closing a storage space of the housing; a plate-type primary coil embedded in the storage space of the housing and supplied with power from a charger side; and a plurality of plate-shaped secondary coils embedded in the storage space of the housing to independently generate an induced current by magnetic field induction from the primary coil and output the induced current to a high voltage battery, and according to this, there is an advantage of reducing the size and improving the product productivity.
Claims7
A transformer for an on-board charger (OBC) of an electric vehicle, the OBC configured to charge a high voltage battery of the electric vehicle using commercial AC power supplied from a charger for the electric vehicle, the transformer comprising:
- a housing having a storage space formed therein;
- a cover for opening and closing the storage space of the housing;
- a plate-shaped primary coil embedded in the storage space of the housing and configured to receive the commercial AC power supplied from the charger for the electric vehicle;
- a plurality of plate-shaped secondary coils embedded in the storage space of the housing to independently generate induced current by magnetic field induction from the plate-shaped primary coil and output the induced current to the high voltage battery;
- an upper magnetic core surrounding an outer surface of the housing on a top side of the cover;
- and
- a lower magnetic core surrounding the housing on a bottom side of the housing,
- wherein the plate-shaped primary coil includes:
- a first conductive wire;
- a first input wire configured to be connected to the charger;
- a primary side winder extending from the first input wire and winding the first conductive wire a plurality of times in a plate shape to have a first central hole at a center of the first conductive wire wound in the plate shape;
- and
- a first output wire configured to be connected to the charger at an end of the primary side winder,
- wherein, in the primary side winder, the first conductive wire is coated with an insulative coalescing agent, and the first conductive wire is wound in the plate shape such that portions of the first conductive wire are adhered to each other by the coated coalescing agent,
- wherein each of the plurality of plate-shaped secondary coils includes:
- a second conductive wire;
- a second input wire configured to be connected to the charger;
- a secondary side winder extending from the second input wire and winding the second conductive wire a plurality of times in the plate shape to have a second central hole at the center of the plate shape;
- and
- a second output wire configured to be connected to the charger at an end of the secondary side winder,
- wherein, in the secondary side winder, the second conductive wire is coated with the insulative coalescing agent, and the second conductive wire is wound in the plate shape such that portions of the second conductive wire are adhered to each other by the coated coalescing agent.
A transformer for an on-board charger (OBC) of an electric vehicle, the OBC configured to charge a high voltage battery of the electric vehicle using commercial AC power supplied from a charger for the electric vehicle, the transformer comprising:
- a housing having a storage space formed therein;
- a cover for opening and closing the storage space of the housing;
- a plate-shaped primary coil embedded in the storage space of the housing and configured to receive the commercial AC power from the charger;
- a plurality of plate-shaped secondary coils embedded in the storage space of the housing to independently generate induced current by magnetic field induction from the plate-shaped primary coil and output the induced current to the high voltage battery;
- an upper magnetic core surrounding an outer surface of the housing on a top side of the cover;
- and
- a lower magnetic core surrounding the housing on a bottom side of the housing,
- wherein the plate-shaped primary coil includes:
- a first conductive wire;
- a first input wire configured to be connected to the charger for the electric vehicle;
- a primary side winder extending from the first input wire and winding the first conductive wire a plurality of times in a plate shape to have a first central hole at a center of the first conductive wire wound in the plate shape;
- and
- a first output wire configured to be connected to the charger at an end of the primary side winder, wherein a heat-resistant tape wraps around the first conductive wire, and a coalescing agent is coated on the heat-resistant tape wrapping the first conductive wire, and the first conductive wire is wound in the plate shape such that portions of the first conductive wire are are adhered to each other by the coalescing agent coated on the heat-resistant tape, and
- wherein each of the plurality of plate-shaped secondary coil includes:
- a second conductive wire;
- a second input wire configured to be connected to the charger for the electric vehicle;
- a secondary side winder extending from the second input wire and winding the second conductive wire a plurality of times in the plate shape to have a second central hole at a center of the second conductive wire wound in the plate shape;
- and
- a second output wire configured to be connected to the charger at an end of the secondary side winder, wherein the heat-resistant tape wraps around the second conductive wire, and the coalescing agent is coated on the heat-resistant tape wrapping the second conductive wire, and the second conductive wire is wound in the plate shape such that portions of the second conductive wire are adhered to each other by the coalescing agent coated on the heat-resistant tape.
Dependencies are inferred from the claim text.