Integrally formed embedded electrode component with inner umbrella skirt and outer shell

Abstract

The invention relates to the structural design and manufacturing fields of medium-high voltage switchgears, and discloses an integrally formed embedded electrode component with an inner umbrella skirt and an outer shell. The integrally formed embedded electrode component comprises the outer shell (1), of the electrode component, which is made of a thermoplastic insulating material; and the inner umbrella skirt (2) integrally formed with the outer shell (1) of the electrode component is arranged on the inner peripheral surface of the outer shell (1) of the electrode component. The embedded electrode component disclosed by the invention adopts an integrally formed manner of the inner umbrella skirt and the outer shell, so that the cost is reduced, the production efficiency is improved, the creep distance is guaranteed, the interior space of the electrode component is large, and parts and components in the shell are convenient to disassemble and repair. Moreover, the structure adopted by the design is unlikely to accumulate dirt such as dust, so that the risk that the insulation level is decreased caused by the dirt is reduced.

Description

technical field [0001] The invention relates to the field of structural design and manufacture of medium and high voltage switchgear, in particular to an embedded pole part in which an inner shed and an outer shell are integrally formed. Background technique [0002] The existing embedded poles made of epoxy resin generally adopt the design of annular ribs to extend the internal creepage distance, but due to the use of APG vacuum casting molding process, it is difficult to demould the annular ribs inside the shell of the embedded pole parts At present, it is generally completed by manual demoulding, so the production of the product is cumbersome and the production efficiency is low. [0003] Due to mold structure and wall thickness, it is difficult to adopt the ring-shaped rib design inside the epoxy-encapsulated pole for existing embedded poles made of thermoplastic materials. Generally, the creepage distance is extended by using additional components. The patent applicati...

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Problems solved by technology

[0004] In addition to the above-mentioned method of extending the creepage distance by using additional components, the patent application publication number CN102800524A discloses a solid-sealed pole using an engineering plastic shell: the inner shed of the solid-sealed pole uses ribbed ribs The design of the strip, the length of which is less than the plane passing through the axis of the vacuum interrupter and perpendicular to the drawing, if the nominal creepage ratio distance corresponding to the insulation pollution level II is 20mm / kV, and the rated voltage is 12kV, the creepage The distance requirement is at least 240mm. Personnel with relevant industry experience can calculate that after adopting this design, the creepage distance from the bottom outlet conductive seat to the bottom mounting surface of the pole (without passing through the ribs) cannot reach 240mm. Extend the length of the ribs in the direction, due to the location requirements of the four mounting holes at the bottom, this will increase the difficulty of demoulding or even make it impossible to demould

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