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Dual-power switch

A dual power supply switching and switching technology, applied in electrical switches, circuits, electrical components, etc., can solve the problems of reducing the service life of dual power supplies, affecting the contact surface of contacts, hidden dangers, etc., so as to improve product safety factor and enhance arc extinguishing. ability, the effect of increasing the mechanical life

Active Publication Date: 2012-10-03
JIANGSU DAQO KFINE ELECTRIC
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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.

Method used

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Embodiment Construction

[0018] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0019] Such as figure 1 with figure 2 As shown, the dual power switch of the present invention includes two switch mechanisms and a moving contact operating mechanism for switching the opening and closing of the two switching mechanisms. The two switching mechanisms are arranged symmetrically with respect to the moving contact operating mechanism, and each group of switching mechanisms It includes a static contact and a moving contact group. The moving contact group includes more than one moving contact pieces, and the moving contact pieces are coaxially connected by the first rotating shaft 6. In addition, the moving contact pieces are provided with an upper moving contact piece. The contact 22 and the lower moving contact 21, the static contact includes the upper static contact 11 for opening and closing with the upper moving contact 22...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H3/32H01H1/06H01H1/50
Inventor 张金泉马建亚郭锴钒
Owner JIANGSU DAQO KFINE ELECTRIC
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