A core reactor with clamping structure of inner pull plate

Abstract

The invention discloses an iron core electric reactor of an inner pull plate clamping structure. The iron core electric reactor comprises multiple iron core pillars, winding coils, upper clamping plates, lower clamping plates and pull plates, wherein a gap is formed between each winding coil and the corresponding iron core pillar; each upper clamping plate is of a long-plate-shaped structure, and each upper clamping plate is transversely arranged at the upper end of the corresponding iron core pillar in a crossing mode; each lower clamping plate vertically corresponds to the corresponding upper clamping plate and is arranged at the lower end of the corresponding iron core pillar, and threaded holes are formed in the two ends of each lower clamping plate in the length direction respectively; a stud is welded to the upper end of each pull plate, each stud protrudes out of the upper surface of the corresponding upper clamping plate, and a nut is arranged on the protruding portion of each stud; a through hole is formed in the lower end of each pull plate in the thickness direction, each through hole is aligned with the corresponding threaded hole, a bolt is arranged in each threaded hole, and each bolt passes through the corresponding through hole and is in threaded connection with the corresponding threaded hole. By means of the iron core electric reactor, the technical problems that iron core pillars are subjected to uneven stress, and the noise of electric reactors is large are solved, and meanwhile the product structure of the electric reactor is simplified.

Description

technical field [0001] The invention belongs to the technical field of high-voltage electrical equipment, in particular to an iron core reactor with an inner drawing plate clamping structure. Background technique [0002] The core reactor has multiple core columns, and each core column contains multiple discus separated by air gaps. For the core column containing the core cake, that is, the upper and lower ends must be effectively clamped, and the quality of the clamping effect directly affects the noise of the core reactor. Such as figure 1 As shown, the traditional clamping structure is: the upper beam 10 straddles the upper end of the iron core column 4 and connects the two upper clamps 7; Connect the upper and lower clamps between the phases or both ends (the small capacity only counts four before and after the phase, and the medium and large capacity need to add two at both ends, a total of eight) to connect the upper and lower clamps, and tighten the pull screw 11, s...

AI Technical Summary

Problems solved by technology

[0004] In view of the above technical problems, the present invention discloses an iron core reactor with an inner pull plate clamping structure. An inner pull plate is arranged on the front and rear sides of each iron core column correspondingly, which connects the upper and lower ends of the iron core column. The plate makes the core column directly bear the force, which solves the technical problems of uneven force between the core columns and large reactor noise, and simplifies the product structure of the reactor at the same time

Images