{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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  "description": "This application provides a vehicle-mounted power supply apparatus and a vehicle. The vehicle-mounted power supply apparatus includes a power conversion circuit, an upper-layer PCB board, a lower-layer PCB board, a bottom cover, and a radiator. The upper-layer PCB board and the lower-layer PCB…",
  "path": "/patents/1391262",
  "publishedAt": "2025-08-13T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60L53/22",
    "HUAWEI DIGITAL POWER TECH CO LTD [CN]"
  ],
  "textContent": "This application provides a vehicle-mounted power supply apparatus and a vehicle. The vehicle-mounted power supply apparatus includes a power conversion circuit, an upper-layer PCB board, a lower-layer PCB board, a bottom cover, and a radiator. The upper-layer PCB board and the lower-layer PCB board are configured to bear a plurality of power switching transistors of the power conversion circuit, so that the power conversion circuit is distributed more flexibly. The lower-layer PCB board and a plurality of transformers are fastened to a bottom plate of the bottom cover, and cooled by heat dissipation through a lower-layer cooling channel in the bottom cover. The upper-layer PCB board and the radiator are sequentially stacked above the lower-layer PCB board and the plurality of transformers, and cooled by heat dissipation through an upper-layer cooling channel in the radiator. The upper-layer cooling channel and the lower-layer cooling channel in the bottom cover communicate with each other through a side wall of the bottom cover. This improves a heat dissipation effect and temperature uniformity of the vehicle-mounted power supply apparatus.",
  "title": "VEHICLE-MOUNTED POWER SUPPLY APPARATUS AND VEHICLE"
}