A contactor, comprising: a housing, comprising a first side plate and a second side plate disposed opposite to each other; and a static iron core and a movable iron core located inside the housing, a coil bobbin fitted on the static iron core, a coil wound on the coil bobbin, an elastic device located between the coil bobbin and the movable iron core, and a moving contact and a static contact disposed opposite to each other, wherein the coil bobbin comprises a bobbin body, the bobbin body comprising a contact end surface facing the movable iron core; a first fixing part and a second fixing part fixed to edges of the contact end surface, length directions of the first fixing part and the second fixing part are parallel to the first side plate and the second side plate, the first fixing part is in contact with and connected to the first side plate, and the second fixing part is in contact with and connected to the second side plate; a first connecting piece integrally formed with the first fixing part, one end (1437, 1437') of the first connecting piece extending out from the first fixing part; and a second connecting piece integrally formed with the second fixing part, one end (1438, 1438') of the second connecting piece extending out from the second fixing part; characterized in that the contactor comprises an isolating plate located between the movable iron core and the one end (1437, 1437') of the first connecting piece and an isolating plate located between the movable iron core and the one end (1438, 1438') of the second connecting piece a housing, comprising a first side plate and a second side plate disposed opposite to each other; and a static iron core and a movable iron core located inside the housing, a coil bobbin fitted on the static iron core, a coil wound on the coil bobbin, an elastic device located between the coil bobbin and the movable iron core, and a moving contact and a static contact disposed opposite to each other, wherein the coil bobbin comprises a bobbin body, the bobbin body comprising a contact end surface facing the movable iron core; a first fixing part and a second fixing part fixed to edges of the contact end surface, length directions of the first fixing part and the second fixing part are parallel to the first side plate and the second side plate, the first fixing part is in contact with and connected to the first side plate, and the second fixing part is in contact with and connected to the second side plate; a first connecting piece integrally formed with the first fixing part, one end (1437, 1437') of the first connecting piece extending out from the first fixing part; and a second connecting piece integrally formed with the second fixing part, one end (1438, 1438') of the second connecting piece extending out from the second fixing part; characterized in that the contactor comprises an isolating plate located between the movable iron core and the one end (1437, 1437') of the first connecting piece and an isolating plate located between the movable iron core and the one end (1438, 1438') of the second connecting piece a bobbin body, the bobbin body comprising a contact end surface facing the movable iron core; a first fixing part and a second fixing part fixed to edges of the contact end surface, length directions of the first fixing part and the second fixing part are parallel to the first side plate and the second side plate, the first fixing part is in contact with and connected to the first side plate, and the second fixing part is in contact with and connected to the second side plate; a first connecting piece integrally formed with the first fixing part, one end (1437, 1437') of the first connecting piece extending out from the first fixing part; and a second connecting piece integrally formed with the second fixing part, one end (1438, 1438') of the second connecting piece extending out from the second fixing part; characterized in that the contactor comprises an isolating plate located between the movable iron core and the one end (1437, 1437') of the first connecting piece and an isolating plate located between the movable iron core and the one end (1438, 1438') of the second connecting piece