Electromagnetic operators and electromagnetically operated opening and closing devices
A technology of electromagnetic operation and switch, which is applied to the power devices, relays, electric switches and other directions inside the switch, which can solve the problems of excessive design strength and shortened machine life.
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Embodiment 1
[0058] figure 1 It is a side view of the electromagnetic operation type switchgear mounted with the electromagnetic operator of Example 1 which shows one Example of this invention.
[0059] like figure 1 As shown, the electromagnetically operated switching device 100 is roughly composed of a switch (switching unit 15) such as a vacuum circuit breaker, an electromagnetic operator 1 that operates the switching unit 15, and an electromagnetic operator 1 connected to the switching unit 15 via The first link mechanism 7 , the second link mechanism 9 , and the third link mechanism 12 are constituted by a rod 10 connected.
[0060] The electromagnetic manipulator 1 is mainly composed of a rod (rod) 3 connected to a movable iron core 2 that lifts in the vertical direction, a movable plate 4, an electromagnet coil 5, and a permanent magnet 6. ) mechanism 7 , connecting member 8 , and second link mechanism 9 are connected to lever 10 .
[0061] In addition, although not shown in the ...
Embodiment 2
[0073] image 3 is a circuit diagram of a control circuit for driving an electromagnetic operator according to Embodiment 2 of another embodiment of the present invention.
[0074] image 3 The control circuit shown uses n pairs (multiple) figure 2 The combination of the limiting resistor 23 and the relay 30 during the closing operation in the control circuit shown in Embodiment 1, that is, the limiting resistor 231 and the relay 301 during the closing operation, the limiting resistor 232 and the relay 302 during the closing operation ~ the closing operation When the restricting resistor 23n and the relay 30n are connected in series to a plurality of structures. Other structures are the same as in Embodiment 1. In addition, the resistance values of the limiting resistors 231 to 23n at the time of closing operation are arbitrary.
[0075] In the structure of this embodiment, the state sensor 29 independently controls the relays 301 to 30n which are n short-circuit mechan...
Embodiment 3
[0078] Figure 4 is a circuit diagram of a control circuit for driving an electromagnetic operator according to Embodiment 3 of another embodiment of the present invention.
[0079] Figure 4 The control circuit shown employs the removal of figure 2 The first switching relay 25, the second switching relay 26, the third switching relay 27, and the fourth switching relay 28 in the control circuit shown in the first embodiment of the present invention, and the closing and opening switch 22 is replaced by the closing switch 31 structure, is a dedicated circuit for closing operations.
[0080] By adopting the structure of this embodiment, the same effect as that of Embodiment 1 can be obtained, and according to the instruction from the state sensor 29, the relay 30 becomes the off state, and the exciting current flowing through the electromagnet coil 5 is suppressed by the limiting resistor 23. , can reduce the mechanical load of the closing action caused by the excess electrom...
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