JPH0421045U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view of an electromagnetic switch according to an embodiment of this invention, Fig. 2 a and b are a plan view of the flange portion of the bobbin in Fig. 1, and a sectional view taken along the - line in Fig. a. A plan view of the fixed core in Figure 1,
4a and b are a plan view and a front view of the rubber gasket shown in FIG. 1, FIG. 5 is a perspective view showing the state in which the lead wire of the excitation coil wound around the bobbin of FIG. 1 is pulled out, and FIG. 6 Figures a and b show a plan view and a front view of a rubber gasket showing a second embodiment of this invention, Figures 7 to 9 show a third embodiment of this invention, and Figures 7a and b show a view of a bobbin. A plan view of the flange portion and a cross-sectional view taken along the - line in figure a, FIG. 8 is a plan view of the fixed core, FIGS. 9 a and b are a plan view and front view of the rubber seal, and FIG. 10 is a vertical cross-section of a conventional electromagnetic switch. Figures 11a and 11b are a plan view of the flange portion of the bobbin in Figure 10 and a sectional view taken along the - line in Figure a, Figure 12 is a plan view of the fixed iron core in Figure 10, and Figure 13 is a plan view of the flange portion of the bobbin in Figure 10. FIG. 3 is a plan view of the rubber gasket shown in the figure. 1... Excitation coil, 2... Attraction coil, 2a...
...Outgoing lead wire, 3...Holding coil, 3a...Outgoing lead wire, 9...Magnetic path case, 10...Movable iron core, 15
... Cap, 17 ... Fixed contact, 18 ... Terminal bolt part, 20 ... Movable contact, 21 ... Movable rod, 22 ... Insulating member, 30 ... Bobbin, 31 ...
... One flange, 32 ... Output protrusion, 32
a, 32b... Outlet groove, 32d... Opening, 3
3... Fixed iron core, 33a, 33c... Long hole, 33
b, 33d...vacancy, 34...rubber gasket,
34a... Hole, 34b, 34c, 34d... Rod-shaped protrusion, 42... Output protrusion, 42a, 42b
...Exit groove, 42d...opening. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Claims for Utility Model Registration] An excitation coil wound around a bobbin having flanges at both ends, a magnetic path case surrounding the outer circumference and the other end of the bobbin, and an outer end of the one flange. The fixed iron core is made of an insulating material, a fixed iron core that is applied to the magnetic path and fixed inside one end of the magnetic path case, a movable iron core that is movably supported on the inner circumferential side of the bobbin facing the fixed iron core and forms a plunger, and an insulating material. a cap that is coupled to the outer end surface via a rubber packing and forms a contact chamber therein; a pair of fixed contacts disposed within the cap; and a movable rod that is movably supported by the fixed core, In an electromagnetic switch comprising a movable contact that opens the pair of fixed contacts in conjunction with the suction movement of the movable iron core by energization of an excitation coil, one flange of the bobbin has an axial opening at the outer end. A pair of outlet protrusions are provided, and two outlet grooves are passed through the outlet protrusions in the axial direction with the opening side directed toward the circumferential edge of the flange. An opening is formed from the side to the periphery, and the outlet conductors of the excitation coil are passed through each outlet groove and drawn out, and the fixed iron core is passed through the outlet protrusion, In addition, an elongated hole is provided with a gap between the opening side of the exit groove, and the rubber gasket has a hole through which the exit protrusion passes, and a hole between the opening side of the exit groove and the fixed iron core. An electromagnetic switch characterized by being provided with a rod-shaped protrusion that is inserted into and fills the gap between the long hole and the elongated hole.