| 摘要 |
A heat exchanger for exchanging heat through a heat transfer plate by flowing a primary air current and a secondary air current to a ventilation path is provided. An unit element including the heat transfer plate, and the ventilation path formed between the heat transfer plates by stacking the unit element in plural are arranged. The unit element is configured by integrally molding a spacing rib for holding a spacing of the heat transfer plate, and a shield rib for shielding leakage of the air current with resin. Furthermore, the unit element includes a stacking error detecting unit for determining a stacking error when they are stacked.
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