An electrical switch and its operating mechanism
An operating mechanism, electrical switch technology, applied in electrical switches, high-voltage/high-current switches, electrical components, etc., can solve the problem of confusion in the internal structure of the operating mechanism, and achieve the effect of simplifying the structure and reducing the number
Active Publication Date: 2019-12-06
HENAN PINGGAO ELECTRIC +2
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- Application Information
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Problems solved by technology
[0005] The purpose of the present invention is to provide an operating mechanism for an electric switch to solve the technical problem in the prior art that multiple sets of control structures are used to individually control the opening and closing indicator and the auxiliary switch, resulting in a relatively chaotic internal structure of the operating mechanism ; Electrical switches using this operating mechanism are also available
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[0031] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0032] The specific embodiment of electric switch operating mechanism of the present invention, as Figure 1 to Figure 7 As shown, the operating mechanism in this embodiment is the operating mechanism used in the three-position isolation grounding switch in the GIS equipment, and the electrical switch is a three-position isolation grounding switch. In other embodiments, the electrical switch may also have other structures.
[0033] The operating mechanism includes an operating mechanism box 100. An output shaft 1 is installed in the operating mechanism box 100. The output shaft 1 rotates under the control of the motor and drives the moving end parts of the electrical switch to reciprocate to achieve three-station isolation. Switching of the three states of isolation closing, opening and grounding closing of the grounding switch. In order to realize tha...
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The invention relates to an electrical switch and its operating mechanism. The operating mechanism for the electrical switch includes a power output shaft, and also includes an opening and closing indicator used to display the opening and closing state of the electrical switch and when the opening and closing of the electrical switch is switched in place The auxiliary switch for controlling the on-off of the secondary circuit, the opening and closing indicator and the auxiliary switch both have a triggering part, and the operating mechanism also includes a connecting piece that is simultaneously connected to the triggering part of the opening and closing indicator and the auxiliary switch. The connecting piece has a power input part which is drivingly connected with the power output shaft to trigger the opening and closing indicator and the auxiliary switch at the same time by the force of the power output shaft. Compared with the prior art, which needs to be equipped with multiple sets of control structures to separately control the opening and closing indicator and the auxiliary switch, the number of control structures is reduced, and the internal structure of the operating mechanism is simplified.
Description
technical field [0001] The invention relates to an electric switch and its operating mechanism. Background technique [0002] In recent years, with the development of gas-insulated metal-enclosed switchgear (GIS), especially in 110kV GIS and 220kV GIS, three-position isolating and earthing switches have become more and more widely used. The corresponding three-position operating mechanism is characterized by its volume The advantages of small size, compact structure, high degree of compounding, and flexible and diverse configuration methods have been adopted by more and more power station manufacturers. [0003] An invention patent application with the application publication number CN101763958A discloses a spiral groove cam operating mechanism and its operation method. The operating mechanism includes a motor and a spiral groove camshaft driven by the motor to rotate. A spiral groove is arranged on the top, and the operating mechanism also includes a rotationally installed...
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IPC IPC(8): H01H33/28
CPCH01H33/28
Inventor 宋广民刘宇王守山丁金庆周忠杰孔志武陈金钟杨天明
Owner HENAN PINGGAO ELECTRIC