A motor shockproof DC switch

Abstract

The invention discloses a shockproof direct-current switch with a good shockproof effect for a motor. The shockproof direct current-switch comprises a reversing base, an upper base and a lower base, which fixed by one another, wherein the upper base and the lower base mutually form a mounting cavity; a movable contact component and a fixed contact component are arranged in the mounting cavity; a push rod is arranged in the mounting cavity in a sliding manner; a push rod spring is arranged between the push rod and the wall of the mounting cavity; the push rod is provided with a speed-regulating spring plate; a speed-regulating circuit board is arranged on the lower base; the push rod is provided with a pushing slide bar which is matched with the movable contact component; a slide bar spring is arranged between the pushing slide bar and the push rod; the movable contact component comprises a movable contact frame and a movable contact plate; a limiting hole is formed in one side of the movable contact frame; a limiting groove is formed in the other side of the movable contact frame; a mounting end is arranged at one end of the movable contact plate; a contact end is arranged at the other end of the movable contact plate; a movable contact is arranged on the contact end; an inserting arm is arranged at one side of the mounting end of the movable contact plate; an extension arm is arranged at the other side of the mounting end; the inserting arm is inserted into the limiting hole; and the extension arm is embedded into the limiting groove.

Description

technical field [0001] The invention relates to a DC switch, in particular to a DC switch with anti-vibration effect for motors. Background technique [0002] The current DC switch includes a reversing base, an upper base and a lower base fixed to each other, a reversing circuit board is arranged between the reversing base and the upper base, and a reversing base is installed on the reversing base The reversing assembly matched with the reversing circuit board, the upper base and the lower base mutually constitute an installation chamber, and the moving contact assembly and the static contact assembly that cooperate with each other are installed in the installation chamber, and the sliding contact assembly in the installation chamber A push rod is installed, a push rod spring is arranged between the push rod and the wall of the installation chamber, a speed regulating shrapnel is installed on the push rod, and a spring that is slidably matched with the resistance adjusting s...

AI Technical Summary

Problems solved by technology

The resistance adjustment is realized through the displacement of the push rod, and the direction change is realized through the reversing component. However, the current structure of the moving contact group of the switch is simply completed by using a tension spring mechanism, which does not take into account the switch state in a strong vibration environment. The contact group will be loose and shifted, and it is easy to ablate the contacts, which cannot meet the market requirements; and in terms of dust prevention, it cannot improve the dust prevention problem in an all-round way

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