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Manual tripping device for magnetic operating mechanism

An electromagnetic operation and open device technology, applied to the power device, snap-action device, electric switch, etc. inside the switch, can solve the problems of complicated manufacturing process, reduced manufacturing cost, complex structure, etc., and achieve simple and reliable disconnection operation , reduce manufacturing costs, and ensure safety

Active Publication Date: 2007-11-14
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it can be clearly understood from Patent Document 1 that this kind of mechanism has a large number of parts and is extremely complicated in structure, and in many occasions, the power distribution linkage for accommodating interrupters must be used with multi-faceted switchboards, so these mechanisms must be Separately assembled on each interrupter
This complicates the manufacturing process due to an increase in the number of parts, and the installation of the switchboard leads to an increase in the size of the operating device, which is an obstacle to reducing manufacturing costs.

Method used

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  • Manual tripping device for magnetic operating mechanism
  • Manual tripping device for magnetic operating mechanism
  • Manual tripping device for magnetic operating mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Fig. 1 (a) (b) (c) is the front view that shows the constitution of the manual opening device of the electromagnetic operating mechanism of embodiment 1 of the present invention, and Fig. 1 (a) shows the sectional view of the closed state of interrupter, Fig. 1( b ) shows a cross-sectional view of the state where the spring is charged, and FIG. 1( c ) shows a cross-sectional view of the interrupter in the off state.

[0014] In the figure, 10 is an interrupter such as a vacuum switch, which is composed of a fixed contact 12 in a vacuum valve unit 11 and a movable contact 13 supported by a main shaft 14 so as to move in the axial direction. The other end of the main shaft 14 is provided with a contact pressure spring 16 for applying a necessary contact pressure to the movable contact 13 via the flange portion 15 .

[0015] 20 is the electromagnetic operating mechanism part of the interrupter, which is connected to the main shaft 14 of the interrupter 10 by the operating ...

Embodiment 2

[0027] Fig. 3 shows Embodiment 2 of the present invention, and is a plan view showing the configuration of the manual operating device of the electromagnetic operating mechanism in the case of three-phase arrangement.

[0028]In the figure, the three-phase interrupters 10a, 10b, 10c arranged side by side in the panel 50 are connected with the contact pressure springs 16a, 16b, 16c, the insulating rods 27a, 27b, 27c, and the electromagnetic operating mechanism part 20 (set separately for each phase). The operating rods 21a, 21b, and 21c are connected, and the central operating rod 21a is screwed to the connecting rod 41 of the manual operation mechanism part 30 described above. This operating rod 21 a is integrated with the operating rods 21 b and 21 c of the other phases via a connecting frame 45 . 46a, 46b, and 46c are fastening members that couple the connecting frame 45 to the operating rods 21a, 21b, and 21c.

[0029] Through the above structure, when the manual operation...

Embodiment 3

[0031] Fig. 4 shows Embodiment 3 of the present invention, and is a plan view showing another configuration of the manual operating device of the electromagnetic operating mechanism in the case of three-phase arrangement.

[0032] In the figure, the difference from Fig. 3 is that the operating rods 21a, 21b, 21c are led out to the outside of the panel 50 through the connecting rods 47a, 47b, 47c, and each phase is controlled independently under normal conditions, and when the power failure, etc., are manually disconnected , the manual operation mechanism part 30 is assembled from the outside to perform the disconnection operation. That is, during the manual disconnection operation, the central connecting rod 47a is combined with the connecting rod 41 of the manual operation mechanism part 30 by the screw 46a, and the connecting rod 47a and the connecting rods 47b, 47c of other phases are connected by the fastening member through the connecting frame 45. 46a, 46b, 46c and combi...

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PUM

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Abstract

To provide a manual operating device whereby the number of components in a switch unit is reduced, assembling work is facilitated, a product is miniaturized and its cost is reduced, opening operation by an operating handle is simple and reliable, and safety at the time of operation can be secured. This manual releasing device is provided with a solenoid operation mechanism which carries out opening and closing operation of the contact of the switch by electromagnetic energy, and keeps the opened and closed condition by a permanent magnet after the closing operation. It is also provided with a connecting body which is connected with the operating rod of the magnetic operating mechanism when manually operating the switch, an spring compressing shaft one end of which is movably combined with the connecting body to compress a spring, and a rotation shaft which is combined with the other end of the spring compressing shaft so as to be movable within a prescribed range, and is rotationally driven by handle.

Description

technical field [0001] The invention relates to an electromagnetic operating mechanism of an interrupter, in particular to a manual opening device of the electromagnetic operating mechanism. Background technique [0002] As an operating device for an interrupter such as a vacuum switch used in a power distribution system, an electromagnetic operation method using a permanent magnet is currently used. That is, electric energy is stored in a capacitor, etc., and a magnetic field is generated by discharging the electric energy, and the opening and closing operation of the contact is performed by means of the electromagnetic force generated thereby. After the opening and closing operation, the above-mentioned open , The closed state is maintained. In an interrupter having such an electromagnetic operating mechanism, it is necessary to manually open the above-mentioned contacts when power supply stops due to a power failure or the like. [0003] As a conventional manual opening...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H3/32H01H3/30H01H9/00H01H33/66H01H5/06H01H33/28H01H33/38H01H33/666
CPCH01H33/6662H01H5/06
Inventor 井上直明
Owner MITSUBISHI ELECTRIC CORP