ELECTRICALLY HEATED CATALYST

摘要

The purpose of the present invention is to suppress short-circuiting between an electrode and a case of an electrically heated catalyst (EHC). In the EHC of the present invention, an electrode (7) is connected to a heat generating body (3) via a through-hole formed in a case (4) and an electrode chamber (9) formed between the inner wall surface of the case (4) and the outer peripheral surface of the heat generating body (3). A support member (8), which is formed from an electrical insulation material and supports the electrode (7) in the through-hole formed in the case (4), extends along the electrode (7) up to the interior of the electrode chamber (9).