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CN-122026144-A - Binding post and processing method thereof

CN122026144ACN 122026144 ACN122026144 ACN 122026144ACN-122026144-A

Abstract

The application relates to the technical field of wiring terminals, in particular to a wiring terminal and a processing method thereof, which comprises a terminal body, wherein the terminal body comprises a cable connecting part and an equipment connecting part, also included is a support including a planar portion positioned within the interior cavity of the device connection portion, the planar portion extending into the interior cavity of the cable connection portion. The application utilizes the flat plate part of the supporting piece to internally support and strengthen the transition joint with abrupt structural change, thereby effectively dispersing stress, obviously improving the bending strength and fatigue resistance of the transition joint between the cable connecting part and the equipment connecting part, and solving the problem that the metal fatigue fracture easily occurs at the joint mentioned in the background technology.

Inventors

  • JIN YUYANG
  • CHEN BIN

Assignees

  • 浙江永炬电力金具有限公司

Dates

Publication Date
20260512
Application Date
20260320

Claims (10)

  1. 1. The wiring terminal comprises a terminal body, wherein the terminal body comprises a cable connection part and an equipment connection part, and is characterized by further comprising a support piece, wherein the support piece comprises a flat plate part positioned in an inner cavity of the equipment connection part, and the flat plate part extends into the inner cavity of the cable connection part.
  2. 2. A terminal according to claim 1, wherein the support further comprises a tube portion located in the interior cavity of the cable connection portion, and a crimp hole communicating with the interior cavity of the tube portion is formed in the circumferential side wall of the tube portion.
  3. 3. A terminal according to claim 2, wherein the crimp hole penetrates the pipe portion in an axial direction of the pipe portion near an end of the flat plate portion.
  4. 4. A terminal according to claim 2, wherein the crimp holes are provided in plurality.
  5. 5. A connecting terminal according to claim 2, wherein two crimping holes are formed, the forming direction of the crimping holes is the radial direction of the pipe part, the two crimping holes are an upper crimping hole and a lower crimping hole, and the forming directions of the upper crimping hole and the lower crimping hole are opposite.
  6. 6. A terminal according to claim 5, wherein the wall of the upper pressure welding hole adjacent to the lower pressure welding hole is a transition surface which is obliquely arranged, and the distance between the transition surface and the central axis of the pipe part is gradually increased along the direction of approaching to the lower pressure welding hole.
  7. 7. A terminal according to claim 6, wherein the wall of the lower pressure welding hole close to the upper pressure welding hole is an inclined surface which is arranged in an inclined manner, and the inclined direction of the inclined surface is the same as the inclined direction of the transition surface.
  8. 8. A terminal according to claim 1, wherein the support member is an interference fit with the terminal body.
  9. 9. A processing method of a wiring terminal is characterized by comprising the following steps of: s1, processing a metal tube through a cold heading process to form a terminal body with an inner cavity; s2, machining a supporting piece; And S3, pressing the supporting piece into the inner cavity of the terminal body.
  10. 10. The method according to claim 9, wherein the supporting member further comprises a tube portion disposed in the inner cavity of the cable connecting portion, two crimp holes extending in the radial direction and communicating with the inner cavity of the tube portion are formed in the circumferential side wall of the tube portion, the two crimp holes are an upper crimp hole and a lower crimp hole, the opening directions of the upper crimp hole and the lower crimp hole are opposite, the upper crimp hole penetrates through the end portion of the tube portion, which is close to the flat plate portion, along the axial direction of the tube portion, and the S2 step includes: An upper pressure welding hole and a lower pressure welding hole are formed in the metal tube in a cutting mode, the upper pressure welding hole penetrates through the end portion, far away from the lower pressure welding hole, of the metal tube along the axial direction of the metal tube, and the end portion of the metal tube is flattened and widened to form a flat plate portion through a stamping process.

Description

Binding post and processing method thereof Technical Field The application relates to the field of wiring terminals, in particular to a wiring terminal and a processing method thereof. Background The wiring terminal is a key component for connecting wires and cables with electrical equipment in electrical engineering. The main function of the multi-strand wire is to provide a firm and reliable connection point for the multi-strand wire and ensure that the current can pass through stably with low resistance. In the related art, the binding post includes cable connection portion and equipment connecting portion, and cable connection portion is tubulose, and equipment connecting portion is platy, and in the course of working, cable connection portion and equipment connecting portion pass through cold heading technology integrated into one piece, directly upsetting flattening the tip of a bar copper forms equipment connecting portion, and the other end keeps the bar-shaped and drilling and form cable connection portion. When the cable is vibrated or pulled by the self weight, the transitional connection part between the cable connection part and the equipment connection part is the position with the largest bending moment. Because of stress concentration caused by structural mutation, metal fatigue fracture is extremely easy to occur. Disclosure of Invention In order to improve the structural strength of a transitional connection part between a cable connection part and an equipment connection part, the application provides a wiring terminal and a processing method thereof. The application provides a wiring terminal and a processing method thereof, which adopts the following technical scheme: The utility model provides a binding post, includes the terminal body, the terminal body includes cable junction portion and equipment connecting portion, still includes support piece, support piece is including the dull and stereotyped portion that is arranged in the inner chamber of equipment connecting portion, dull and stereotyped portion extends to in the inner chamber of cable junction portion. By adopting the technical scheme, the supporting piece extending from the equipment connecting part to the cable connecting part is arranged in the inner cavity of the terminal body, and the plate part of the supporting piece is utilized to internally support and strengthen the transition connecting part with abrupt structural change, so that stress is effectively dispersed, the bending strength and fatigue resistance of the transition connecting part between the cable connecting part and the equipment connecting part are obviously improved, and the problem that metal fatigue fracture easily occurs at the part mentioned in the background art is solved. Optionally, the support member further comprises a pipe portion located in the inner cavity of the cable connection portion, and the circumferential side wall of the pipe portion is provided with a crimping hole communicated with the inner cavity of the pipe portion. Through adopting above-mentioned technical scheme, set up the pipe portion that is arranged in cable junction portion inner chamber on support piece to set up the crimping hole on the pipe portion lateral wall, this structure makes when crimping cable, cable junction portion is being opened the part deformation degree in crimping hole bigger, and corresponding, the cable deformation degree of this part is also bigger, and the cable is contradicted with cable junction portion's inner wall after being deformed, has increased area of contact, increases frictional force, can play the effect of stable electric contact and anticreep. Optionally, the crimp hole penetrates the tube portion near an end of the flat plate portion in an axial direction of the tube portion. Through adopting above-mentioned technical scheme, set up the crimping hole into the axial along the pipe portion and run through its tip for the pipe portion is close to the tip of dull and stereotyped portion and forms an open notch structure, more conveniently forms dull and stereotyped portion with support piece's tip punching press, has reduced the required dynamics of punching press dull and stereotyped portion. Optionally, the crimping hole is provided with a plurality of crimping holes. Through adopting above-mentioned technical scheme, offer a plurality of crimping holes, increased the crimping point or changed the atress distribution in crimping region for be connected between cable and the binding post more firm, can adapt to the crimping mould of different specifications or provide bigger tensile pull-out force, further ensured electrical connection's stability. Optionally, two crimping holes are formed, the forming direction of the crimping holes is the radial direction of the pipe part, the two crimping holes are an upper crimping hole and a lower crimping hole, and the forming directions of the upper crimping hole and the lower crimping hole ar