armature

JP7893169B2Active Publication Date: 2026-07-22DENSO CORP
View PDF 6 Cites 0 Cited by

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
DENSO CORP
Filing Date
2023-03-06
Publication Date
2026-07-22

AI Technical Summary

Technical Problem

The yield of bus bars in existing armatures is poor due to the inefficient punching process of plate materials into T-shaped configurations, leading to suboptimal bending and connection of conductor ends.

Method used

The armature incorporates a busbar with a projection that includes a first bend formed by punching and subsequent radial and axial bends, allowing for improved yield during material punching and effective absorption of vibrations, with a square cross-section to minimize bending differences and facilitate connection to armature windings.

Benefits of technology

This configuration enhances the yield of bus bars by reducing material waste and ensures stable connections despite mechanical vibrations, improving the efficiency and reliability of armature performance.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 0007893169000001
    Figure 0007893169000001
  • Figure 0007893169000002
    Figure 0007893169000002
  • Figure 0007893169000003
    Figure 0007893169000003
Patent Text Reader

Abstract

To provide an armature capable of improving the yield of a busbar.SOLUTION: A stator includes a stator winding and a busbar 61 made of a plate material and electrically connected to the stator winding. The busbar 61 includes an annular busbar main body 71 and a protrusion 72 extending from the busbar main body 71 and connected to the stator winding. The protrusion 72 includes a first bent portion B1 that is bent in the circumferential direction at a base end extending from the busbar main body 71 in the plate surface direction, and a second bent portion B2 that is bent in the radial direction on the tip side of the first bent portion B1, the first bent portion B1 is formed by punching the plate material, and the second bent portion B2 is formed by bending.SELECTED DRAWING: Figure 7
Need to check novelty before this filing date? Find Prior Art