Manual switching device for circuit breaker of monostable permanent magnetic mechanism
A technology of manual closing and permanent magnet mechanism, which is applied in the direction of protection switch operation/release mechanism, etc. It can solve the problems of large energy, lack of manual closing function, manual lever can not provide closing energy, etc., to avoid energy loss Effect
Inactive Publication Date: 2015-04-08
NANJING INTELLIGENT DISTRIBUTION AUTOMATION EQUIP
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- Description
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Problems solved by technology
However, the permanent magnet mechanism vacuum circuit breaker also has its own shortcomings, that is, it lacks the manual closing function.
However, the monostable permanent magnet mechanism requires a lot of energy for manual closing operation, and the manual lever cannot provide the energy required for closing.
Method used
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Embodiment Construction
[0020] The solution of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0021] control Figure 1-5 , the manual closing device of the monostable permanent magnet mechanism circuit breaker provided in this embodiment is connected with the driving rod 12 of the permanent magnet 2 in the circuit breaker. The device includes a housing 8, an energy storage rod 1, a closing baffle 14, a cam 4, a closing handle 5, a rotating shaft 6, a convex plate 9, a limit pull rod 10, a nut 11, a driving rod 12, a stage clip 13 and Two energy storage springs 3. The rotating shaft 6 is rotatably connected in the casing 8 . The energy storage rod 1 is rotatably connected to the rotating shaft 6 , and the first surface 83 of the casing 8 is provided with six limiting holes 81 , and the limiting holes 81 are distributed on the casing 8 in an arc shape. The second surface 84 opposite to the first surface 83 of the housing 8 is provided with a ...
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The invention relates to a manual switching device for a circuit breaker of a monostable permanent magnetic mechanism. The manual switching device comprises a casing, an energy storage rod, a switching baffle, a cam, a switching handle, convex plates, a limit pull rod, nuts, a driving rod, a compressed spring and an energy storage spring, wherein the energy storage rod is connected in the casing in a rotating way, a plurality of limit holes are formed in the side (a) of the casing, slots (a) corresponding to the limit holes are formed in the side (b), opposite to the side (a), of the casing, the convex plates are arranged at parts, corresponding to the limit holes, in the casing, slots (b) corresponding to the slots (a) are formed in the convex plates, one end of the energy storage rod is connected with the limit pull rod, the other end of the energy storage rod is connected with the switching baffle by the energy storage spring, the cam is arranged below the switching baffle in a rotatable way, and the switching handle is in rotating connection with the cam. The manual switching device has the beneficial effects that the energy storage of the energy storage spring in a failure state is realized in the manual switching process, and energy losses in a normal switching process are avoided.
Description
technical field [0001] The invention relates to a closing device, in particular to a manual closing device for a monostable permanent magnet mechanism circuit breaker. Background technique [0002] With the rapid development of power distribution system automation, users have more and more perfect functional requirements for switchgear. Compared with the spring mechanism vacuum circuit breaker, the permanent magnet mechanism vacuum circuit breaker has many advantages. However, the permanent magnet mechanism vacuum circuit breaker also has its own shortcomings, that is, it lacks the manual closing function. However, the monostable permanent magnet mechanism needs a lot of energy when performing manual closing operation, and the manual lever cannot provide the energy required for closing. Contents of the invention [0003] The purpose of the present invention is to overcome the above deficiencies in the prior art, and provide a simple, feasible, safe and reliable monostabl...
Claims
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IPC IPC(8): H01H71/50
Inventor 徐建源秦骏达周健祥王博
Owner NANJING INTELLIGENT DISTRIBUTION AUTOMATION EQUIP