Abstract:
An electromagnetic relay has a reduced height while maintaining a good voltage withstand. A base unit includes a metal plate member and a base mold made of a plastic, the metal plate member having a break fixed contact point and a break terminal and being insertion-molded with the base mold. A subassembly, including an electromagnet assembly and a movable leaf spring/armature assembly attached to the electromagnet assembly, is fixed to an upper side of the base unit. The electromagnet assembly includes a bobbin, a coil, an iron core and a yoke. The movable leaf spring/armature assembly includes a movable leaf spring having a movable contact point and an armature fixed to the movable leaf spring. A make terminal member having a make fixed contact point and a make terminal is fixed to the base unit. The base mold has a yoke attaching part to which the yoke of the electromagnet assembly is attached and a make terminal member attaching part to which the make terminal member is attached. The subassembly is mounted to the base unit by the yoke of the electromagnet assembly being attached to the yoke attaching part of the base mold. The make terminal member is mounted to the base unit by being attached to the make terminal attaching part of the base mold.
Abstract:
A polarized electromagnetic relay has two electromagnetic relay portions each constituted by a first yoke, second yoke, coil, movable core, card, and the like. The first yoke and the second yoke are used to flow a magnetic flux caused by a permanent magnet in the movable core in the same direction as a magnetic flux caused by the magnetization of the coil, and thus electrical power flowing in the magnetized coil can be small, or an area occupied by the coil can be small. Therefore, a small size and economical polarized electromagnetic relay having two groups of electromagnetic relays can be provided, and a stable operation regardless the states of magnetization or non-magnetization of one or both coils of the two electromagnetic relay portions can be realized.
Abstract:
A display and keyboard panel for an electronic device such as a handheld or desktop calculator, the panel having a keyboard area and an indication area located in the vicinity of the keyboard area. The indication area has a plurality of key sections each having at least two component areas each for indicating a single piece of information. Each of the key sections is typically formed by a touch sensor switch area having at least two adjacent areas corresponding respectively to the aforesaid component areas, each of the adjacent areas of the touch sensor switch area including at least one segment or plural segments of a conductor.