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CN-224217445-U - Threading jig for high-voltage fuse

CN224217445UCN 224217445 UCN224217445 UCN 224217445UCN-224217445-U

Abstract

The utility model provides a high tension fuse is with threading tool, including threading the silk body, it divide into silk seat and lower silk seat to wear down in proper order from last the dividing into of silk body, upward wear and be mirror symmetry between silk seat and the lower silk seat, upward wear silk seat including fuse location portion and spacing step, set up the fuse constant head tank that is used for fixed fuse that a plurality of is horizontal interval setting on the fuse location portion, the both ends of fuse constant head tank are the opening setting, spacing step is mirror symmetry setting in the both sides of fuse location portion, be equipped with the sawtooth line portion that is used for fixed copper pipe on the spacing step. The utility model prevents the fuse wire and the copper tube from shifting by arranging the fuse wire positioning groove for fixing the fuse wire and the limiting step for limiting the copper tube, has high stability, ensures that the effective length of each product fuse wire is equal and consistent, and ensures that the product performance is consistent, and the saw-tooth grain part is arranged on the limiting step, ensures that the fuse wire and the copper tube are tightly attached and well contacted, and ensures that the resistance of each product is consistent by equal length and tight attachment, thereby improving the qualification rate of the product.

Inventors

  • DAI WEIGUO
  • HUANG QIBO

Assignees

  • 旭程电子(深圳)有限公司

Dates

Publication Date
20260508
Application Date
20250408

Claims (10)

  1. 1. The wire threading jig for the high-voltage fuse is characterized by comprising a wire threading body, wherein the wire threading body is sequentially divided into an upper wire threading seat (1) and a lower wire threading seat (2) from top to bottom, mirror symmetry is formed between the upper wire threading seat (1) and the lower wire threading seat (2), the upper wire threading seat (1) comprises a fuse positioning portion (3) and a limiting step (4), a plurality of fuse positioning grooves (5) which are transversely arranged at intervals and used for fixing the fuse are formed in the fuse positioning portion (3), two ends of the fuse positioning grooves (5) are arranged in an opening mode, the limiting step (4) is arranged on two sides of the fuse positioning portion (3) in a mirror symmetry mode, and the vertical height of the limiting step (4) is smaller than that of the fuse positioning portion (3), and a saw-tooth line portion (6) used for fixing a red copper tube is arranged on the limiting step (4).
  2. 2. The threading jig for high-voltage fuses according to claim 1, wherein the saw-tooth line portion (6) comprises a plurality of spacing concave portions (7) and a plurality of spacing convex portions (8) which are distributed at intervals, and the plurality of spacing concave portions (7) and the plurality of spacing convex portions (8) are arranged in a staggered manner.
  3. 3. The threading jig for a high voltage fuse according to claim 2, wherein the limit concave portion (7) is formed into a strip-shaped groove having a semicircular cross section, and the limit convex portion (8) is formed into a ridge shape having a semicircular cross section.
  4. 4. The threading jig for high voltage fuses according to claim 3, wherein the saw-tooth line portion (6) further comprises an inner convex portion (9) and an outer convex portion (10), the inner convex portion (9) is located between the fuse positioning portion (3) and the limiting concave portion (7), one end of the outer convex portion (10) is connected with one of the limiting concave portions (7), and the limiting concave portion (7), the limiting convex portion (8), the inner convex portion (9), the outer convex portion (10) and the fuse positioning portion (3) are integrally formed.
  5. 5. The threading jig for the high-voltage fuse as claimed in claim 1, wherein the limiting step (4) is internally provided with a limiting plug hole (11), and the limiting plug hole (11) is in a7 shape and comprises a transverse part (12) and a vertical part (13).
  6. 6. The threading jig for high voltage fuses according to claim 1, wherein the fuse positioning portion (3) is further provided with a clamping groove (14), the clamping groove (14) is arranged on one side of the fuse positioning groove (5), and the clamping groove (14) and the transverse portion (12) are located on the same transverse horizontal plane.
  7. 7. The threading jig for high voltage fuses according to claim 6, wherein the fuse positioning portion (3) is further provided with an abutting groove (15), the abutting groove (15) is located between the clamping groove (14) and the fuse positioning groove (5), and the width of the abutting groove (15) is larger than that of the fuse positioning groove (5).
  8. 8. The threading jig for high voltage fuses according to claim 7, wherein the threading body is provided with an assembly perforation (16), the assembly perforation (16) penetrates from the upper threading seat (1) to the lower threading seat (2), and the upper end of the assembly perforation (16) is positioned in the abutting groove (15).
  9. 9. The threading jig for high voltage fuses according to claim 1, wherein the two outer side edges of the fuse positioning portion (3) are provided with inclined portions (17), and corners of the limiting step (4) are provided with chamfer portions (18).
  10. 10. The threading jig for high-voltage fuses according to claim 1, wherein a clamping concave part (19) is arranged between the upper threading seat (1) and the lower threading seat (2).

Description

Threading jig for high-voltage fuse Technical Field The utility model relates to the technical field of fuse production, in particular to a threading jig for a high-voltage fuse. Background The fuse, namely a fuse tube, is an electrical element which is arranged in a circuit and ensures the safe operation of the circuit, and is also called a fuse, and the IEC127 standard defines the fuse as a fuse-link, and the fuse can blow and cut off the current when the current abnormally rises to a certain height and a certain temperature, thereby playing the role of protecting the safe operation of the circuit and greatly enhancing the safety factor. A high voltage fuse is a component specifically designed to protect an electrical circuit from overload and short circuit damage, particularly in high voltage power systems. The press-fit assembly process of the high-voltage fuse is one of important processes for assembling the high-voltage fuse, and the traditional press-fit assembly mode is to manually compare the effective distance of the fuse, then to string the copper tube into the fuse, and then to perform press-fit assembly in a common plane press-fit mode. The operation mode has the defects that the effective distance of the fuses can not be fixed and equal and consistent by manual comparison, the production efficiency is low, the requirement of quick production can not be met, the copper has better ductility and high hardness because of larger hardness difference between the fuses and the copper tube, the local virtual connection or stress concentration is easily caused by planar lamination, the problems of poor contact, unstable product resistance and the like are easily caused by lamination in a flat pressing mode, and the qualification rate is reduced. Therefore, how to provide a threading tool for high voltage fuses is a problem that needs to be solved by those skilled in the art. Disclosure of utility model The utility model aims to provide a threading jig for a high-voltage fuse, which aims to solve the technical problems, and the fuse positioning groove for fixing the fuse and the limiting step for limiting a copper tube are arranged to prevent the fuse and the copper tube from being deviated, so that the stability is high, the effective length of each product fuse is ensured to be equal and consistent, and the product performance is consistent; and set up sawtooth line portion on spacing step, thereby guarantee fuse and closely laminate with the red copper pipe, the contact is good, and equal length and closely laminate thereby guarantee the resistance of every product unanimously, improved the qualification rate greatly. In order to achieve the above purpose, the present utility model is realized by the following technical scheme: The utility model provides a high tension fuse is with threading tool, including threading the silk body, it divide into silk seat and lower silk seat to wear down in proper order from last the dividing into of silk body, upward wear and be mirror symmetry between silk seat and the lower silk seat, upward wear silk seat including fuse location portion and spacing step, set up the fuse constant head tank that is used for fixed fuse that a plurality of is horizontal interval setting on the fuse location portion, the both ends of fuse constant head tank are the opening setting, spacing step is mirror symmetry setting in the both sides of fuse location portion, the vertical height of spacing step is less than the vertical height of fuse location portion, be equipped with the sawtooth line portion that is used for fixed copper pipe on the spacing step. Further, the sawtooth line portion includes a plurality of spacing concave parts that are interval distribution and a plurality of spacing convex parts that are interval distribution, a plurality of spacing concave parts and spacing convex parts are crisscross the setting each other. Further, the limit concave part forms a strip-shaped groove with a semicircular section, and the limit convex part forms a convex strip with a semicircular section. Further, the sawtooth line portion still includes inboard convex part and outside convex part, inboard convex part is located between fuse location portion and the spacing concave part, the one end and one of them spacing concave part of outside convex part are connected, integrated into one piece sets up between spacing concave part, spacing convex part, inboard convex part, outside convex part and the fuse location portion. Further, a limiting plug hole is formed in the limiting step, and the limiting plug hole is 7-shaped and comprises a transverse portion and a vertical portion. Further, a clamping groove is further formed in the fuse positioning portion, the clamping groove is formed in one side of the fuse positioning groove, and the clamping groove and the transverse portion are located on the same transverse horizontal plane. Further, an abutting groove is further formed in the fuse po