ELECTRICALLY HEATED CATALYST DEVICE

The utility model provides an electric heating type catalyst device, which can properly adjust the setting of capacitance by adjusting the position of an air layer on a cross section intersected with the axial direction, can solve the problem of abrasion of a contact part, and further reduces the condition that waste gas is blocked by a bonding agent in a flow path of a catalyst carrier. The electrically heated catalyst device comprises: a housing through which exhaust gas flows; a catalyst carrier that purifies the exhaust gas by being heated by energization; and a pair of electrodes that energize the catalyst carrier. The catalyst carrier includes a first filter member that constitutes an upstream portion and is connected to the pair of electrodes, and a second filter member that constitutes a downstream portion, and the downstream side of the first filter member and the upstream side of the second filter member are provided with a fitting structure so as to be fitted and connected to each other. The parts