Multi-pole double-throw travel switch

Abstract

The invention provides a multi-pole double-throw travel switch comprising a driving mechanism, a switching mechanism and an output mechanism. The driving mechanism comprises a push rod, a compression spring sleeve, a main spring, a sliding sleeve, an auxiliary spring, a hook, a lower buffering cushion and a shell. The lower buffering cushion is fixedly installed at the bottom of an inner cavity of the shell, the sliding sleeve is installed in the inner cavity of the shell, the auxiliary spring is installed in a gap between the sliding sleeve and the shell, the sliding sleeve can slide in the vertical direction of the inner cavity of the shell under the elasticity action of the auxiliary spring, the push rod penetrates into the inner cavity of the shell from the upper portion of the shell, and the compression spring sleeve is placed below a boss in the middle of the push rod. The upper end of the main spring makes contact with the inner end face of the compression spring sleeve, the lower end of the main spring is fixed to the lower buffering cushion, the compression spring sleeve can slide in the vertical direction of the inner wall of the sliding sleeve under the elasticity action of the main spring, and one side of the sliding sleeve is fixedly connected with the bottom end of the hook. The mode of double spring linkage and sliding sleeve and hook combination is adopted for the driving mechanism, switch switching is finished through combining and positioning the structural parts, and the multi-pole double-throw travel switch has the advantages of being compact in structure, rapid in switching and small in size.

Description

technical field [0001] The invention relates to a multi-pole double-throw travel switch, which belongs to the field of electronic technology. Background technique [0002] The travel switch is a kind of electrical appliance that uses the movement of mechanical moving parts to trigger the circuit conversion device to realize the connection or disconnection of the circuit. The current travel switches are mainly divided into direct-acting, roller and micro-action according to the structure, and the electrical functions that can be realized are double-pole double-throw at most. With the improvement of circuit design integration in electrical systems, there is an urgent demand for multi-pole double-throw travel switches. [0003] At present, the existing direct-acting travel switches such as figure 1 As shown, limited by the structural form, there are only single-pole double-throw and double-pole double-throw forms. If they are combined with other forms to realize the multi-pol...

AI Technical Summary

Problems solved by technology

[0003] At present, the existing direct-acting travel switches such as figure 1 As shown, limited by the structural form, there are only single-pole double-throw and double-pole double-throw forms. If they are combined with other forms to realize the multi-pole double-throw function, the conversion structure and drive structure are bulky, the conversion lags and the structure is complicated. Adapt to the current design requirements for miniaturization of electrical components

Images