Dynamoelectric machine blocking means

Claim 2

A member for a dynamoelectric machine having a magnetic core with slots containing windings, the windings having end turns extending out of an end of the slots, and means for supporting said end turns comprising, blocking means, said end turns being spaced apart in a circumferential direction, said blocking means being placed between said spaced-apart end turns, said blocking means including rigid blocks each having a thickness less than the spacing between adjacent end turns, said blocking means also including conformable absorbent blocking having a compressed thickness less than the spacing between adjacent ends turns and positioned between adjacent end turns, said conformable blocking being an absorbent pad of homogeneous material substantially free of varnish at the time of installation, and an impregnating varnish impregnating said conformable materiaL and hardened in place and holding captive at least part of said rigid blocks.

Claim 3

A member as set forth in claim 1, wherein the combined rigid block and a conformable absorbent blocking has an uncompressed thickness greater than the spacing between adjacent end turns and a compressed thickness less than the spacing between the respective adjacent end turns.

Claim 4

A member as set forth in claim 1, wherein said rigid blocks are each generally a rectangular solid.

Claim 5

A member as set forth in claim 1, wherein said conformable material is bent into a U-shape around a respective rigid block.

Claim 6

A member as set forth in claim 1, including a rigid block between each adjacent pair of end turns.

Claim 7

A member as set forth in claim 1, including conformable blocking between each adjacent pair of end turns.

Claim 8

A member as set forth in claim 5, including conformable blocking between each adjacent pair of end turns and covering at least one side of each said rigid block to aid in holding captive said rigid blocks.

Claim 11

The method as set forth in claim 8, wherein each of said blocking means between adjacent end turns includes a rigid block and absorbent blocking.

Claim 12

The method as set forth in claim 8, including a shoulder on said rigid block, said absorbent blocking being larger than said rigid block to overlie said shoulder on said rigid block, and utilizing the rigidity of said rigid block to insert said blocking means between adjacent end turns with said shoulder engaging a portion of said absorbent blocking and thus aiding in the insertion of said blocking means between adjacent end turns.

Claim 13

The method as set forth in claim 8, including a leading edge on said rigid block, said absorbent blocking being larger than said rigid block to at least partially wrap around said leading edge on said rigid block, and utilizing the rigidity of said rigid block to insert said blocking means between adjacent end turns with said leading edge being first inserted between the end turns.

Claim 14

The method as set forth in claim 11, including a trailing edge on said rigid block opposite said leading edge, and grasping said rigid block near said trailing edge to insert said leading edge first between the end turns.

Claim 15

The method as set forth in claim 8, including selecting absorbent blocking having a dimension more than twice as long as the length of a rigid block, folding said absorbent blocking around a rigid block in a generally U-shape, and utilizing the rigidity of said rigid block to insert said blocking means into the space between adjacent end turns with the bight of the U-shaped absorbent blocking being the leading edge of the blocking means in the insertion between the end turns.

Claim 16

The method as set forth in claim 8, including a ring adjacent the circumference of said end turns, and placing said absorbent blocking into engagement with said ring.

Claim 17

A member for a dynamoelectric machine having a magnetic core with slots containing windings, the windingS having end turns extending out of an end of the slots, and means for supporting said end turns comprising, blocking means, said end turns being spaced apart in a circumferential direction, turns, said blocking means being placed between said spaced apart end turns, said blocking means including rigid blocks each having a thickness less than the spacing between adjacent end turns, said blocking means also including conformable absorbent blocking having a compressed thickness less than the spacing between adjacent end turns and positioned between adjacent end turns, said conformable material being bent into a U-shape around a respective rigid block, a ring in said supporting means adjacent said end turns and the bight of said U-shape conformable blocking providing an insulating spacer between said rigid block and said ring, and an impregnating varnish impregnating said conformable material and hardened in place and holding captive at least part of said rigid blocks.

Claim 18

A member for a dynamoelectric machine having a magnetic core with slots containing windings, the windingS having end turns extending out of an end of the slots, and means for supporting said end turns comprising, blocking means, said end turns being spaced apart in a circumferential direction, turns, said blocking means being placed between said spaced apart end turns, said blocking means including rigid blocks each having a thickness less than the spacing between adjacent end turns, said blocking means also including conformable absorbent blocking having a compressed thickness less than the spacing between adjacent end turns and positioned between adjacent end turns, said conformable material being bent into a U-shape around a respective rigid block, a ring in said supporting means adjacent said end turns and the bight of said U-shape conformable blocking providing an insulating spacer between said rigid block and said ring, and an impregnating varnish impregnating said conformable material and hardened in place and holding captive at least part of said rigid blocks.