Connecting structure and its connecting method, and rotating machinery and alternating current

• US 20050020147A1
• Filed: 08/19/2004
• Published: 01/27/2005
• Est. Priority Date: 12/06/1999
• Status: Active Grant

• Current Assignee: Hitachi Astemo Ltd. (Hitachi, Ltd.)
• Original Assignee: Hitachi, Ltd.
• Inventors: Okamura, Masaki, Onose, Shin, Ishikawa, Fuminori, Kase, Masamichi, Terakado, Katsuyoshi
• Granted Patent: US 7,128,621 B2
• Time in Patent Office: Days
• US Class Current: 439/877
• CPC Class Codes: H01R 39/32 Connections of conductor to commutator segment
• CPC Class Codes: H01R 43/0228 without preliminary removing of insulation before soldering or welding
• CPC Class Codes: H02K 11/05 Rectifiers associated with casings, enclosures or brackets
• CPC Class Codes: H02K 3/50 Fastening of winding heads, equalising connectors, or connections thereto
• CPC Class Codes: H02K 3/528 of the claw-pole type
• CPC Class Codes: H02K 5/225 Terminal boxes or connection arrangements specially adapted for submersible motors H02K5/132

Abstract

A connecting structure in which the electric cable having an insulated coating and the electrically conductive member with non-insulated coating are connected through a connecting terminal having a junction support member by applying an electric current, heating and applying a pressure; and the electric cables having an insulated coating and are connected mutually to one another through a connecting terminal having an electrically conductive member with non-insulated coating and a junction support member by applying an electric current, heating and applying a pressure, and a connecting method in which those connections are established by applying an electric current, applying a heat and applying a pressure, and a rotating electric machinery having that connecting structure and an alternating current generator using this machinery.

Claims

1. A connecting structure wherein

an electric cable having an insulated coating and an electrically conductive member with a non-insulated coating are connected to each other through a connecting terminal having a junction support member to a side of said junction support member by applying an electric current, applying a heat and applying a pressure.

2. A connecting structure of claim 1, wherein

said connecting terminal is a U-shaped connecting terminal or a closed-circle shaped connecting terminal;

and

a connecting target member corresponding to individual connections for said electric cable having an insulated coating, said electrically conductive member with non-insulated coating and said electric cable with non-insulated coating is integrated in said connecting terminal and used in said connection.

3. A connecting structure of claim 1, wherein

said connecting terminal is a U-shaped connecting terminal;

a connecting target member corresponding to individual connections for said electric cable having an insulated coating, said electrically conductive member with non-insulated coating and said electric cable with non-insulated coating is integrated in said connecting terminal; and

said electrically conductive member with non-insulated coating and said electric cable with non-insulated coating is arranged at an open port side of said U-shaped connecting terminal, and used for said connection.

4. A connecting structure of claim 2, wherein

a junction support member is arranged inside said U-shaped connecting terminal or said closed-circle connecting terminal.

5. A connecting structure of claim 1, wherein

at least one of said electric cable having an insulated coating and said electrically conductive member has a cross-sectional shape in either a round form, a rectangular form or a polygon form.

6. A connecting structure of claim 1, wherein

said junction support member is brazing filler metal or solder

7. A connecting structure of claim 1, wherein

said connecting terminal is composed of either of copper, copper alloy, iron, iron alloy, aluminum or aluminum alloy.

11. A rotating electric machinery having a connecting structure of claim 1.

12. An alternating current generator having, between a end frame,

a stator core having a stator coil and a rectifier apparatus;

a rotor having a shaft around which a magnetic field coil is wound and enabled to rotated inside said stator core; and

a connecting terminal for supplying an electric current to said magnetic field coil through a slip ring and for connecting a terminal of said magnetic field coil to a lead line of the slip ring,

wherein

said magnetic field coil is an electric cable having an insulated coating;

said lead line of said slip ring is a non-insulated coating electrically conductive member; and

said magnetic field coil and said lead line have a connecting structure of either of claim 1.

13. A rolling stock alternating current generator having, between a end frame,

a stator core having a stator coil and a rectifier apparatus;

a rotor having a shaft around which a magnetic field coil is wound and enabled to rotated inside said stator core; and

a connecting terminal for supplying an electric current to said magnetic field coil through a slip ring and for connecting a terminal of said magnetic field coil to a lead line of the slip ring,

wherein

said stator coil is an electric cable having an insulated coating;

a terminal of said rectifier apparatus is a non-insulated coating electrically conductive member; and

said stator coil and said terminal have a connecting structure of either of claim 1.

8. A connecting method comprising

a step for arranging an electric cable having an insulated coating and an electrically conductive member with a non-insulated coating at a connecting terminal having a junction support member to a side of said junction support member;

and

a step for connecting said electric cable and said electrically conductive member with a non-insulated coating through said electrically conductive member with a non-insulated coating and said connecting terminal by applying an electric current, applying a heat and applying a pressure.

9. A connecting method of claim 8, wherein

said connecting terminal is a U-shaped connecting terminal or a closed-circle shaped connecting terminal;

a connecting target member corresponding to individual connections for said electric cable having an insulated coating, said electrically conductive member with non-insulated coating and said electric cable with non-insulated coating is made integrated in said connecting terminal; and

said connection is established by said applying a electric current, applying a heat and applying a pressure at both sides of a plate of said connecting terminal.

10. A connecting method of claim 8, wherein

said connecting terminal is a U-shaped connecting terminal;

a connecting target member corresponding to individual connections for said electric cable having an insulated coating, said electrically conductive member with non-insulated coating and said electric cable with non-insulated coating is made integrated in said connecting terminal;

said electrically conductive member with non-insulated coating and said electric cable with non-insulated coating is made arranged at an open port side of said U-shaped connecting terminal; and

said connection is established by said applying a electric current, applying a heat and applying a pressure at both sides of a plate of said connecting terminal.

14. An alternating current generator having, between a end frame,

a stator core having a stator coil and a rectifier apparatus;

a rotor having a shaft around which a magnetic field coil is wound and enabled to rotated inside said stator core; and

a connecting terminal for supplying an electric current to said magnetic field coil through a slip ring and for connecting a terminal of said magnetic field coil to a lead line of the slip ring,

wherein said connecting terminal and said slip ring are pressed into and fixed at a resin pressed into said shaft.