{
  "$type": "site.standard.document",
  "description": "In a heating-medium heating unit (10) equipped with a first heating-medium circulation box (A) and a second heating-medium circulation box (B) which are in close contact with both surfaces of a PTC heater (40), in which heating-medium circulation passages (33, 54) are formed in the interior, and…",
  "path": "/patents/986062",
  "publishedAt": "2013-02-20T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60H1/2221",
    "MITSUBISHI HEAVY IND LTD [JP]"
  ],
  "textContent": "In a heating-medium heating unit (10) equipped with a first heating-medium circulation box (A) and a second heating-medium circulation box (B) which are in close contact with both surfaces of a PTC heater (40), in which heating-medium circulation passages (33, 54) are formed in the interior, and which are joined to each other in a liquidtight manner, wherein joining surfaces (M1 to M4) are sealed with liquid gaskets, the heating-medium circulation passages (33, 54) are provided with joining-surface cooling channels (C1, C2) that cool the joining surface (M1) which is sealed with a liquid gasket and on which the heat from the PTC heater (40) acts. The joining-surface cooling channels (C1, C2) are provided at positions closer to the joining surface (M1) than to the PTC heater (40).",
  "title": "HEAT MEDIUM HEATING DEVICE AND VEHICLE AIR CONDITIONING APPARATUS USING THE SAME"
}