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CN-224232457-U - Reactor iron core structure and reactor

CN224232457UCN 224232457 UCN224232457 UCN 224232457UCN-224232457-U

Abstract

The utility model provides a reactor iron core structure and a reactor. The iron core comprises a main body part and a protruding part arranged at one side edge of the main body part, wherein the size of the main body part is the same as that of the silicon steel sheet, after the air gap plate is stacked with the iron core structure, the protruding part is positioned outside the silicon steel sheet, the length of the protruding part is smaller than that of the edge of the silicon steel sheet, a middle clamping piece is arranged at the side face of at least one side of the iron core body in the height direction and comprises the side face of the protruding part, an opening is formed in the part of the middle clamping piece matched with the protruding part, and the protruding part penetrates out through the opening. The air gap plate is designed to be a protruding part, and is embedded into the middle clamping piece to form a hole, so that the front end face and the rear end face of the two sections of iron cake structures are completely blocked by the air gap plate, and even though the iron cake structures are laminated and the air gap plate have dimensional tolerance, the air gap can still effectively block the silicon steel sheets close to the two ends.

Inventors

  • LI DONGGE
  • JI LUN

Assignees

  • 青岛云路特变智能科技有限公司

Dates

Publication Date
20260512
Application Date
20250604

Claims (9)

  1. 1. A reactor core structure, characterized by comprising: a plurality of silicon steel sheets with the same size are stacked to form an discus structure; The air gap plate is arranged between two adjacent discus structures, is stacked with the discus structures to form an iron core body and comprises a main body part and a protruding part at least arranged at one side edge of the main body part, wherein the size of the main body part is the same as that of the silicon steel sheet; The middle clamping piece is arranged on the side face of at least one side of the iron core body in the height direction and comprises a side face where the protruding part is located, an opening is formed in the matching part of the middle clamping piece and the protruding part, and the protruding part penetrates out through the opening.
  2. 2. The reactor core structure of claim 1, wherein the air gap plate is rectangular, the protrusions are located at opposite side edges of the air gap plate, and each side surface of the protrusions is provided with a middle clip.
  3. 3. The reactor core structure according to claim 1 or 2, wherein the protruding portion is located at an edge in a width direction of the air gap plate.
  4. 4. The reactor core structure according to claim 1, wherein the opening is provided along a height direction of the middle clip, the opening being so high as to cover all the projections of the air gap plate.
  5. 5. The reactor core structure according to claim 1 or 4, wherein the width of the protruding portion is smaller than or equal to the thickness of the middle clip so that the protruding portion does not exceed the space defined by the opening.
  6. 6. The reactor core structure according to claim 1 or 4, wherein the length of the projection is equal to the width of the opening.
  7. 7. The reactor core structure of claim 1, wherein the projections are parallel to the faces of the air gap plates.
  8. 8. The reactor core structure of claim 1, wherein the silicon steel sheets, the discus structure and the air gap plate, and the middle clamping piece and the core body are fixed by adhesive.
  9. 9. A reactor characterized by comprising the reactor core structure according to any one of claims 1 to 8.

Description

Reactor iron core structure and reactor Technical Field The utility model relates to the technical field of reactors, in particular to a reactor iron core structure and a reactor. Background A reactor is an electric device for limiting current, compensating reactive power, etc., and its core component is an iron core. The core structure has an important influence on the performance of the reactor. The reactor core is typically stacked up of silicon steel sheets and air gap plates. The silicon steel sheet is the main material of the reactor iron core, and has the characteristics of high magnetic permeability and low loss. The silicon steel sheet is generally processed into a rectangular shape or a square shape. And stacking a plurality of silicon steel sheets into discus, and stacking air gap plates between any two adjacent discuses to form the iron core column. The conventional iron core center post of the reactor at present has the defects that the silicon steel sheets are stacked to have tolerance, the length of an air gap plate has machining tolerance, when the discus is stacked with the air gap plate, the silicon steel sheets at the front end and the rear end of the air gap plate can not be blocked by the air gap plate, and iron core glue on the air gap plate can not tightly bond the silicon steel sheets, so that when the reactor runs for a long time, after the reactor is aged by vibration of a magnetic field, the upper and lower misplacement leads to 'connecting sheets', noise and abnormal vibration are caused, and an insulating layer is seriously damaged to cause local circulation, so that the center post iron core is burnt. Disclosure of utility model The utility model aims to overcome the defects of the prior art and provide a reactor iron core structure and a reactor. In order to achieve the above purpose, the utility model adopts the following technical scheme: a first aspect of the present utility model provides a reactor core structure including: a plurality of silicon steel sheets with the same size are stacked to form an discus structure; The air gap plate is arranged between two adjacent discus structures, is stacked with the discus structures to form an iron core body and comprises a main body part and a protruding part at least arranged at one side edge of the main body part, wherein the size of the main body part is the same as that of the silicon steel sheet; The middle clamping piece is arranged on the side face of at least one side of the iron core body in the height direction and comprises a side face where the protruding part is located, an opening is formed in the matching part of the middle clamping piece and the protruding part, and the protruding part penetrates out through the opening. In combination with the first aspect, in some embodiments of the present utility model, the air gap plate is rectangular, the protruding portions are located at two opposite side edges of the air gap plate, and each side surface of the protruding portions is provided with a middle clamping piece. With reference to the first aspect, in some embodiments of the utility model, the protruding portion is located at an edge of the air gap plate in a width direction. In combination with the first aspect, in some embodiments of the present utility model, the openings are disposed along a height direction of the middle clip, and a height of the openings is capable of covering all of the protrusions of the air gap plate. In combination with the first aspect, in some embodiments of the utility model, the width of the protrusion is less than or equal to the thickness of the middle clip piece, such that the protrusion does not exceed the space defined by the opening. With reference to the first aspect, in some embodiments of the utility model, the length of the protrusion is equal to the width of the aperture. With reference to the first aspect, in some embodiments of the utility model, the protrusion is parallel to a plate surface of the air gap plate. With reference to the first aspect, in some embodiments of the present utility model, the silicon steel sheets, the discus structure and the air gap plate, and the middle clamping piece and the iron core body are fixed by glue. A second aspect of the application provides a reactor comprising the reactor core structure provided by the first aspect of the application. Compared with the prior art, the reactor iron core structure and the reactor have the technical advantages that: The air gap plate is designed to be a protruding part, and is embedded into the middle clamping piece to form a hole, so that the front end face and the rear end face of the two sections of iron cake structures are completely blocked by the air gap plate, and even though the iron cake structures are laminated and the air gap plate have dimensional tolerance, the air gap can still effectively block the silicon steel sheets close to the two ends. The structure solves the problem of connecting