{
  "$type": "site.standard.document",
  "description": "This application provides a charging pile, an electric device, a charging system, and a battery pack heating method, which may be applied to a new energy vehicle. The charging pile includes a power unit and a charging gun. The charging gun is configured to connect the power unit and the electric…",
  "path": "/patents/1393687",
  "publishedAt": "2025-07-30T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60L53/14",
    "HUAWEI DIGITAL POWER TECH CO LTD [CN]"
  ],
  "textContent": "This application provides a charging pile, an electric device, a charging system, and a battery pack heating method, which may be applied to a new energy vehicle. The charging pile includes a power unit and a charging gun. The charging gun is configured to connect the power unit and the electric device. The charging pile is configured to: receive a first message from the electric device, where the first message carries a first current value required for heating a battery pack of the electric device; and control the power unit to charge and discharge the battery pack based on the first current value. A second current value output when the power unit heats the battery pack is not greater than the first current value. Based on the foregoing solution, a current may be controlled to repeatedly flow into and out of the battery pack. Because the battery pack has internal resistance, heat is generated when the current flows into and out of the battery pack. The heat may cause the battery pack to be heated to reach an appropriate operating temperature. In addition, the battery pack is heated by using the charging pile, and a structure of the electric device does not need to be changed, thereby reducing costs.",
  "title": "CHARGING PILE, ELECTRIC DEVICE, CHARGING SYSTEM, AND BATTERY PACK HEATING METHOD"
}