Power relay for a vehicle

A power relay for a vehicle, comprising:

• a housing having a connector base and a housing can mounted on said connector base, said housing can being an infection molded component made of plastic;
• two terminal studs for contacting a load circuit and inserted into said connector base;
• a coil subassembly disposed in said housing and containing a solenoid coil, an armature, a force-transmission member and a contact bridge, said armature is coupled by said force-transmission member to said contact bridge and can be moved in said housing, under an action of a magnetic field generated by said solenoid coil, such that said contact bridge can be moved reversibly between a closed position, in which said contact bridge bridges said terminal studs in an electrically conducting manner, and an open position, in which said contact bridge is not in contact with said terminal studs;
• a potting compound, said connector base is connected fluid tightly to said housing can by means of said potting compound;
• and
• said housing can has, on an opening side, an encircling shoulder, on which said connector base rests by means of an encircling radial web, said housing can surrounding said encircling radial web on an outside by means of a collar and projects axially beyond said radial web, with a result that a trough-type receptacle for said potting compound is formed by said collar of said housing can and said connector base.

A power relay for a vehicle, comprising:

• a housing having a connector base and a housing can mounted on said connector base, said housing can being an infection molded component made of plastic;
• two terminal studs for contacting a load circuit and inserted into said connector base;
• a coil subassembly disposed in said housing and containing a solenoid coil, an armature, a force-transmission member and a contact bridge, said armature is coupled by said force-transmission member to said contact bridge and can be moved in said housing, under an action of a magnetic field generated by said solenoid coil, such that said contact bridge can be moved reversibly between a closed position, in which said contact bridge bridges said terminal studs in an electrically conducting manner, and an open position, in which said contact bridge is not in contact with said terminal studs;
• and
• said housing having an excess pressure safeguard, which opens a gas expulsion opening in a case of a critical excess pressure in said housing.

A power relay for a vehicle, comprising:

• a housing having a connector base and a housing can mounted on said connector base, said housing can being an injection molded component made of plastic;
• two terminal studs for contacting a load circuit and inserted into said connector base;
• a coil subassembly disposed in said housing and containing a solenoid coil, an armature, a force-transmission member and a contact bridge, said armature is coupled by said force-transmission member to said contact bridge and can be moved in said housing, under an action of a magnetic field generated by said solenoid coil, such that said contact bridge can be moved reversibly between a closed position, in which said contact bridge bridges said terminal studs in an electrically conducting manner, and an open position, in which said contact bridge is not in contact with said terminal studs;
• and
• said coil subassembly is configured as an inherently stable and coherent modular unit, and said coil subassembly having a support body, which is an integral injection molding made of plastic and onto which said solenoid coil is directly wound.

A power relay for a vehicle, comprising:

• a housing having a connector base and a housing can mounted on said connector base, said housing can being an injection molded component made of plastic;
• two terminal studs for contacting a load circuit and inserted into said connector base;
• a coil subassembly disposed in said housing and containing a solenoid coil, an armature, a force-transmission member and a contact bridge, said armature is coupled by said force-transmission member to said contact bridge and can be moved in said housing, under an action of a magnetic field generated by said solenoid coil, such that said contact bridge can be moved reversibly between a closed position, in which said contact bridge bridges said terminal studs in an electrically conducting manner, and an open position, in which said contact bridge is not in contact with said terminal studs;
• and
• control electronics, being in contact with said terminal studs, said control electronics configured to determine an electric voltage drop across said terminal studs.