Dual-power switch

Abstract

The invention relates to a dual-power switch which comprises two switching mechanisms and a movable contact operating mechanism for switching the on-state and the off-state of the two switching mechanisms, wherein the two switching mechanisms are symmetrically arranged on two sides of the movable contact operating mechanism; the on-state of the movable contact set of one of the switching mechanisms and the static contact, and the off-state of the movable contact set of the other switching mechanism and the static contact are realized by different rotating directions of the movable contact operating mechanism; in addition, the movable contact is provided with an upper movable contact point and a lower movable contact point; the static contact comprises an upper static contact and a lower static contact which respectively form an on-state and an off-state with the upper movable contact point and the lower movable contact point; and the lower static contact is a bending rod, and the dual-breaking in the on-state of the switching mechanism is realized by setting the angle range of the horizontal section of the lower static contact of the bending rod and the inclined section of the lower static contact within 100-130 DEG C. Therefore, the invention can effectively increase the switching speed of the PC dual-power and realize the dual-breaking of the movable contact, thereby enhancing the arc extinguishing capability of the contact point and enhancing the safety coefficient of the product.

Description

technical field [0001] The invention relates to a dual power supply switching switch, which is applied to switching of PC-level dual power supplies. Background technique [0002] There are PC-level dual power supplies widely in the market today. Although the switching speed is faster than that of CB-level dual power supplies, there are many potential safety hazards. It is easy to cause a short circuit between phases. Even if one line has been opened, it is easy to generate arcing, which will affect the contact surface of the contacts for a long time and reduce the service life of the dual power supply. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present invention provides a dual-power switching switch, which realizes fast switching of dual power sources through double breaking of the moving contacts, which can not only effectively improve the switching speed of PC-level dual power sources, but also realize the switching of moving con...

AI Technical Summary

Problems solved by technology

[0002] There are PC-level dual power supplies widely in the market today. Although the switching speed is faster than that of CB-level dual power supplies, there are many potential safety hazards. It is easy to cause a short circuit between phases. Even if one line has been opened, it is easy to generate arcing, which will affect the contact surface of the contacts for a long time and reduce the service life of the dual power supply.

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