Locking device for dual power change over switch and dual power change over switch
A dual power conversion and locking device technology, applied in the direction of electric switches, circuits, electrical components, etc., can solve the problems of user inconvenience, unfavorable generalization of product parts, etc., and achieve the effect of simple structure, low cost, and compact operation structure
Pending Publication Date: 2019-03-29
CHANGSHU SWITCHGEAR MFG CO LTD (FORMER CHANGSHU SWITCHGEAR PLANT)
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- Application Information
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Problems solved by technology
The current dual power switch realizes two-position and three-position working strokes, and its operating mechanisms must be designed separately, which is not conducive to the generalization of product parts and also brings inconvenience to users.
Method used
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[0049] The following is a detailed description in conjunction with the accompanying drawings in the form of an embodiment, but the description of the embodiment is not a limitation to the technical solution of the present invention, and any equivalent transformation made according to the concept of the present invention is only in form and not in substance. It should be regarded as the scope of the technical solution of the present invention.
[0050] In the following descriptions, all concepts involving directionality or orientation of up, down, left, right, front and rear are attached figure 1 The position shown is a reference, so it cannot be understood as a special limitation on the technical solution provided by the present invention.
[0051] Such as figure 1 As shown, the present invention relates to a dual power switch, including a housing 1, an operating mechanism 2, a signal switch 3 and a contact mechanism not shown in the figure. The two-position dual power switc...
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A locking device for a dual power change over switch and the dual power change over switch are disclosed. The locking device comprises a fixation frame, a first locking piece, a second locking piece,and a triggering electromagnet fixed in the middle of the fixation frame; the first locking piece and the second locking piece are two sets of same structure members symmetrically disposed on two sides of the triggering electromagnet, and comprise hasps and lock buckles pivoted to the fixing frame, hasp reset springs making the hasps maintain a pushing tendency on the lock buckles, and lock bucklereset springs maintaining the lock buckles in locking positions; and the triggering electromagnet is electrically applied to the hasps to make the hasps rotate to drive the lock buckles release fromthe locking positions. The dual power change over switch includes a contact mechanism and an operation mechanism, and the locking device is connected to the operation mechanism to limit the operationmechanism at an intermediate position of the first and second contact closed positions. Common usage of two-position and three-position operation mechanisms can be achieved; and a structure is simple,the volume is small, and the cost is low.
Description
technical field [0001] The invention belongs to the technical field of low-voltage electrical appliances, and in particular relates to a locking device of a dual-power conversion switch, and also relates to a dual-power conversion switch equipped with the locking device. Background technique [0002] Dual power transfer switches are mainly used in important places such as hospitals, power plants, banks, chemicals, metallurgy, hotels, high-rise buildings, military facilities, etc., to ensure the continuity of power supply. The technical level, advancement and reliability of dual power transfer switches directly affect the level and reliability of electrical equipment in these occasions, and the level and reliability of electrical equipment are related to the safety and life of electrical personnel. The existing dual power supply switch can be divided into a two-position dual power supply switch and a three-position dual power supply switch. The two-position dual power supply ...
Claims
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Login to View More IPC IPC(8): H01H9/26
CPCH01H9/26
Inventor 顾怡文沈惠新丁晓辉
Owner CHANGSHU SWITCHGEAR MFG CO LTD (FORMER CHANGSHU SWITCHGEAR PLANT)