Heat medium heating device and vehicle air conditioner including the same
AssigneeMitsubishi Heavy Industries Automotive Thermal Systems Co., Ltd.
InventorsSatoshi Kominami, Naoto Kunieda
Life of this patent
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Abstract
In a heat medium heating device 10 in which a heat exchange element 20 formed by stacking multiple flat heat exchange tubes 21 and multiple pairs of PTC heaters 26 in multiple layers is fastened and fixed into a casing 11 including heat medium outlet and inlet paths 15 and 16, connection portions 48 and 49 between a power supply HV harness and a control LV harness 44 are provided on an outer surface on one surface side where the heat medium outlet and inlet paths 15 and 16 of the casing 11 are provided, and a control substrate 33 that controls energization to the PTC heaters 26 is disposed on an inside on the same side as a surface on which the connection portions 48 and 49 of the casing 11 is provided.
Claims18
A heat medium heating device comprising:
- a plurality of flat heat exchange tubes through which a heat medium flowing from an inlet header portion flows through a flat tube portion and flows out from an outlet header portion;
- a plurality of pairs of PTC heaters incorporated between the flat tube portions of the plurality of flat heat exchange tubes, wherein
- a heat exchange element formed by alternately stacking the flat heat exchange tubes and the PTC heaters in multiple layers is fastened and fixed into a casing including heat medium outlet and inlet paths communicating with the outlet header portion and the inlet header portion, and
- a connection portion between a power supply HV harness and a control LV harness is formed on an outer surface on the same side as a surface on which the heat medium outlet and inlet paths of the casing are formed, and a control substrate that controls energization to the PTC heaters is disposed on an inside on the same side as the surface on which the connection portion of the casing is formed.
Dependencies are inferred from the claim text.