Panasonic Intellectual Property Management Co., Ltd.

Takafumi Imai

Tomoaki Sasaki

A relay includes a fixed contact point, a movable contact member and an electromagnetic device. The electromagnetic device includes a bobbin, a coil, a movable iron core, a first armature, a second armature, and a ferromagnetic member. The first armature has a first hole to which a first end portion of the movable iron core is insertion-fitted. The second armature has a second hole to which a second end portion of the movable iron core is insertion-fitted. The bobbin has a first rib formed on each of facing surfaces of a pair of first side pieces and a second rib formed on each of facing surfaces of a pair of second side pieces. The first armature is interposed between the first ribs of the pair of first side pieces and the second armature is interposed between the second ribs of the pair of second side pieces.

Relay

A polarized electromagnet in a remote control relay includes a pair of armatures into which opposite ends of the plunger in a forward/backward movement direction are respectively inserted and fixed; a yoke to which one of the armatures becomes closer than the other when the plunger is at a stop position; an auxiliary yoke which contacts with one magnetic pole of a permanent magnet whose the other magnetic pole contacting with the yoke, the auxiliary yoke becoming closer to the other of the armatures than the one of the armatures; and a gap maintaining portion for maintaining a gap between the other of the armatures and the auxiliary yoke. When the plunger is at the stop position, the other of the armatures and the auxiliary yoke comes close to each other with the gap, a space is provided between the one of the armatures and the yoke.

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Mie, Japan

Takafumi Imai