Electromagnet driving apparatus and electromagnetic relay

An electromagnetic driving apparatus, comprising:

• an iron core having a central portion separating two outside portions formed as a first pole piece with a first pole face at an end of the first pole piece spaced from the central portion and an opposite pole piece with an opposite pole face at an end of the opposite pole piece spaced from the central portion;
• at least one coil wound around the iron core;
• an armature configured to have a first armature end opposed to the first pole face and an opposite armature end opposed to the opposite pole face;
• an armature supporting structure acting as a fulcrum being positioned to engage the armature at an engagement position along a length direction of the armature extending from the first armature end opposed to the first pole face to the opposite armature end opposed to the opposite pole face, the engagement position being spaced a different distance measured in th length direction from the first armature end than from the opposite armature end, with the armature supporting structure acting as a fulcrum being configured to permit the armature to rock in seesaw fashion so that when the first armature end opposed to the first pole face moves toward the first pole face, the opposite armature end opposed to the opposite pole face moves away from the opposite pole face and when the first armature end opposed to the first pole face moves away from the first pole face, the opposite armature end opposed to the opposite pole face moves toward the opposite pole face;
• and
• a permanent magnet provided as part of a magnetic circuit including the armature and at least each pole face.