JPS5947939U - vacuum switch - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

Figure 1 is a partially sectional side view showing a conventional vacuum switch;
The figure is a front view of Figure 1, Figure 3 is a partially enlarged view of Figure 1, Figures 4 to 8 show a vacuum switch according to an embodiment of the present invention, and Figure 4 is a front view. 5 is a left side view of FIG. 4, FIGS. 6 and 7 are partially enlarged views for explaining the state of contact wear, and FIG. 8 is a cutaway perspective view of the area around the display bar. 1: Vacuum valve, 5: Fixed contact, 6: Movable contact, 13:
Operating rod, 29: Operating arm, 22: Electromagnet, 36: Display rod. In addition, in the figures, the same reference numerals indicate the same or corresponding parts. Figure 5

Claims (1)

[Scope of utility model registration request] The operating arm, which is driven according to the excitation control of the electromagnet, connects to the movable contact placed opposite the fixed contact in the vacuum valve.
and a vacuum switch that performs opening/closing operations by driving an operating rod that engages with the operating arm, further comprising an indicator rod that engages and drives the operating arm, and the indicator rod indicates the position of the operating arm in the closed state. A vacuum switch characterized by an enlarged display of displacement due to contact wear.