Electromagnetic relay

摘要

An electromagnetic relay includes a bobbin including a winding part, jaw parts extending from both ends of the winding part, and a pair of opposing side wall parts; a coil wound on the winding part; an iron core attached to the bobbin; an armature; a movable contact which contacts or is separated from a fixed contact; and a case. The jaw part is formed to extend to a part in the vicinity of a side wall of the case so as to separate a first space where the coil exists from a second space where the fixed contact and the movable contact exist. Each of the side wall parts extends from the jaw part along an axis of the bobbin in a direction toward the second space and has a distal end abutting on the case.

主权项

1. An electromagnetic relay comprising:
a bobbin comprising a winding part, jaw parts extending from both ends of the winding part, and a pair of opposing side wall parts; a coil wound on the winding part of the bobbin; an iron core attached to the bobbin; an armature supported to be freely swung by a hinge spring and magnetically attracted to one end of the iron core by supplying a current to the coil; a movable contact which contacts or is separated from a fixed contact in accordance with a swing movement of the armature; and a case that accommodates the elements, wherein the jaw part of the bobbin is formed to extend to a part in the vicinity of a side wall of the case and is interposed between the coil and the movable and fixed contacts so as to separate a first space where the coil exists from a second space where the fixed contact and the movable contact exist, wherein the jaw part of the bobbin comprises a first jaw part surface which faces the coil; and a second jaw part surface which is opposite to the first jaw part surface and which faces the fixed contact and the movable contact; and wherein each of the side wall parts extends from the jaw part along the axial direction of the bobbin toward the second space and has a distal end abutting on the case.