Conductor wire connecting method, and connecting terminal, stator, and rotary electric machine

• US 8,153,899 B2
• Filed: 05/26/2009
• Issued: 04/10/2012
• Est. Priority Date: 06/18/2008
• Status: Active Grant

• Current Assignee: Hitachi Astemo Ltd. (Hitachi, Ltd.)
• Original Assignee: Hitachi, Ltd.
• Inventors: Mita, Toru, Saito, Yuji
• Primary Examiner(s): NGUYEN, CHAU N
• Application Number:
  US12/471,876
• Publication Number:
  US 20090315419A1
• Time in Patent Office: 1,050 Days
• Field of Search: 174/84.C, 174/88.R, 174/128.1
• US Class Current: 174/84.C
• CPC Class Codes: H01R 4/20 using a crimping sleeve H01R4/01 takes precedence
• CPC Class Codes: H01R 43/05 with wire-insulation stripping
• CPC Class Codes: Y10T 29/49179 by metal fusion bonding
• CPC Class Codes: Y10T 29/49185 of terminal
• CPC Class Codes: Y10T 29/49201 with overlapping orienting
• CPC Class Codes: Y10T 29/53235 Means to fasten by deformation

Abstract

After melted enamel coating is discharged from the crimping connectors, electrical wire-to-wire connection, that is, the fusion process, is carried out inside the crimping connector. In this conductor connection method based on the fusion process, plural the above enamel-coated conductor wires are inserted in the above crimping connector prior to the start of the fusion process. Further, the temporary crimping process which provides the crimping connector a temporary crimping by mechanical pressurizing means is also a part of entire process. Addition of force at both the end parts or either one of them of the cross-section orthogonal to the axis of the above crimping connector may cause expansion, which needs to be suppressed with external fore. At the same time, the areas of cross-section corresponding to both the end parts or either of them mentioned above should preferably be held as small as possible. The above temporary crimping is applied to the above crimping connector for this purpose.

Claims

1. A connecting terminal comprising:

a plurality of enamel-coated conductor wires;

a plurality of lead wires; and

a crimping connector surrounding the enamel-coated conductor wires and the lead wires, wherein;

the crimping connector has a substantially hexagonal shape in a cross-section orthogonal to an axis of the crimping connector,

two longest sides of the substantially hexagonal shape are formed parallel to each other, and

an end part of the crimping connector has an inwardly protruding portion between the two longest sides of the substantially hexagonal shape.

2. A connecting terminal comprising:

a plurality of enamel-coated conductor wires;

a plurality of lead wires; and

a crimping connector surrounding the enamel-coated conductor wires and the lead wires, wherein;

the crimping connector has a substantially hexagonal shape in a cross-section orthogonal to an axis of the crimping connector,

two longest sides of the substantially hexagonal shape are formed parallel to each other, and

each of the two longest sides of the substantially hexagonal shape has a dented portion having a substantially rectangular shape.