Patent ID: 8642906

Claim:
A relay for an electric vehicle, the relay comprising: a fixed contact; a movable contact configured to be movable to contact the fixed contact or separate from the fixed contact; an actuator configured to drive the movable contact to cause the movable contact to contact the fixed contact or separate from the fixed contact; a supporting plate configured to support the actuator; and a cover assembly configured to support the fixed contact and fixed on the supporting plate to form an arc extinguishing chamber in which the fixed contact and the movable contact are positioned, wherein the supporting plate has a position guiding portion protruding from an upper surface of the supporting plate, the position guiding portion guiding the cover assembly to be located on a predetermined position of the supporting plate and maintaining an assembled position of the cover assembly and the supporting plate wherein the cover assembly comprises: a ceramic cover; and a metal connecting member attached to an end of the ceramic cover and fixedly-connected to the supporting plate, wherein the position guiding portion comprises a plurality of guiding protrusions spaced from each other and protruding from an upper surface of the supporting plate to contact an inner wall of the metal connecting member.