STATOR BAR WINDING OF ELECTRIC MACHINE

• US 3,648,091 A
• Filed: 06/11/1970
• Issued: 03/07/1972
• Est. Priority Date: 05/19/1970
• Status: Expired due to Term

• Current Assignee: Alvian Afanasievich Svirin, Georgy Konstantinovich Sapunov, Grigory Iosifovich Shur, Konstantin Fedorovich Kostin, Valery Ivanovich Strakhov
• Original Assignee: Alvian Afanasievich Svirin, Georgy Konstantinovich Sapunov, Grigory Iosifovich Shur, Konstantin Fedorovich Kostin, Valery Ivanovich Strakhov
• Inventors: Kostin, Konstantin Fedorovich, Sapunov, Georgy Konstantinovich, Svirin, Alvian Afanasievich, Strakhov, Valery Ivanovich, Shur, Grigory Iosifovich
• Primary Examiner(s): Miller, J. D.
• Assistant Examiner(s): Skudy, R.
• Application Number:
  US05/045,351
• Time in Patent Office: 635 Days
• Field of Search: 310/260,270,271,272,258
• US Class Current: 310/260
• CPC Class Codes: H02K 3/50 Fastening of winding heads, equalising connectors, or connections thereto
• CPC Class Codes: H02K 3/505 for large machine windings, e.g. bar windings H02K3/51 takes precedence

Abstract

A stator bar winding for an electric machine in which the heads of end connections of the winding are insulated by means of cups and cavities between the heads and the cups are filled with an insulating compound. Between adjacent cups, there are provided spacers secured against displacements at least on one side, by supports on the lateral surface of said cups. The spacers may be made in the form of wedges and inserts.

Claims

1. A stator bar winding for an electric machine comprising in combination:

end connections including heads, spaced cups insulAting said heads of said end connections, spaces being provided between said heads and said cups, an insulating compound filling said spaces, spacers mounted between the adjacent cups, and supports on at least one of the lateral surfaces of said cups for fixing said spacers.

2. A stator bar winding as claimed in claim 1, in which said spacers are wedges, said supports fixing said wedges in position.

3. A stator bar winding as claimed in claim 1, in which said spacers are inserts, said supports fixing said inserts in position.

4. A stator bar winding as claimed in claim 3, in which said spacers are thread-interconnected inserts, said supports fixing said inserts in position.

5. A stator bar winding as claimed in claim 3, in which the inserts are interconnected and are provided with intercommunicating chambers, comprising a self-solidifying insulating compound in said chambers.

6. A stator bar winding as claimed in claim 5, in which the spaces between the heads and cups and the insert chambers intercommunicate and are filled with said self-solidifying insulating compound.

7. A stator bar winding as claimed in claim 4, in which the inserts include terminal spherical surfaces and engage in corresponding spherical surfaces provided in the supports.

8. A stator bar winding as claimed in claim 3, comprising and in which the connection of the inserts to the supports is made by pivot joints provided with gaps filled with a self-solidifying compound for fixing said pivot joints.