Patent ID: 8305167

Claim:
An electromagnetic relay having, on a base plate, a plurality of electromagnetic relay blocks each provided with a movable contact swung by excitation current, a normally open contact and a normally closed contact which are arranged opposite to each other in the swinging direction of the movable contact across the movable contact, and fixed contacts, the normally open contact and movable contact being closed by the excitation current and the normally closed contact and movable contact being closed when the application of the excitation current is stopped, wherein the electromagnetic relay blocks each have an electromagnetic block and a fixed terminal block, the electromagnetic block including a coil assembly and a movable contact block, wherein the coil assembly has a coil block in which a coil wire is wounded around a spool having a coil terminal, a yoke formed into substantially an L-shape having one surface extending in the perpendicular direction with respect to the coil winding shaft of the coil block and the other surface extending in parallel thereto, and a core penetrating the coil block and having one end coupled to the yoke, wherein the movable contact block has a movable contact spring having one end coupled to the yoke, an armature coupled to the movable contact spring, and a movable contact terminal having an external terminal portion for connection to an external wiring, wherein the fixed terminal block is obtained by integrally molding, using a synthetic resin, a make-side fixed terminal for retaining a make-side fixed contact constituting the normally open contact and a break-side fixed terminal for retaining a break-side fixed contact constituting the normally closed contact, the fixed terminal block further has a fitting hole to which one end portion of the yoke is fitted, and the make-side fixed terminal and break-side fixed terminal each have an external terminal portion for connection to an external wiring, and wherein at least one projection provided in the spool of the coil assembly constituting each of the electromagnetic relay blocks is inserted into a projection insertion hole formed in the base plate so as to fix each of the electromagnetic relay blocks.