Housing and production method for an end winding
OwnerUwe Kanppenbergerinventor
Life of this patent
Estimating the term…
Abstract
The invention relates to a housing for a fluid-cooled electric machine, having at least one stator winding head 1 and a bearing plate 2, 3. It is provided that at least one fluid coolant conduit 4 is formed between the at least one stator winding head 1 and the bearing plate 2, 3. The present invention also relates to methods for producing a stator winding head that is fluid-tight at least in some portions.
Claims38
A housing for a fluid-cooled electric machine, having at least one stator winding head (1) and a bearing plate (2, 3), characterized in that between the at least one stator winding head (1) and the bearing plate (2, 3), at least one fluid coolant conduit (4) is provided.
The housing of one of the foregoing claims, characterized in that the bearing plate is formed by an A-bearing plate (2) and a B-bearing plate (3).
The housing of one of the foregoing claims, characterized in that the at least one stator winding head (1) and the bearing plate (2, 3) define the at least one fluid coolant conduit (4).
The housing of one of the foregoing claims, characterized in that the at least one fluid coolant conduit (4) is formed on one or both sides on the stator winding heads.
The housing of one of the foregoing claims, characterized in that in other regions of the housing, further fluid coolant conduits are provided.
The housing of one of the foregoing claims, characterized in that the at least one stator winding head (1) is fluid-tight as a result of potting and/or impregnation.
The housing of one of the foregoing claims, characterized in that the bearing plate (2, 3) has faces (5, 6, 7, 8) for sealing purposes.
The housing of one of the foregoing claims, characterized in that sealing means (9, 10) are provided in the region of the at least one fluid coolant conduit (4), between the at least one stator winding head (1) and the bearing plate (2, 3).
The housing of one of the foregoing claims, characterized in that the sealing means are provided between the faces (5, 6, 7, 8) for sealing purposes and the at least one stator winding head (1).
The housing of one of the foregoing claims, characterized in that inner faces (5, 6) and outer faces (7, 8) for sealing purposes are provided, and that the sealing means (9, 10) are embodied by a first encompassing seal (9), which is disposed between the at least one stator winding head (1) and the inner faces (5, 6), and by a second encompassing seal (10), which is disposed between the at least one stator winding head (1) and the outer faces (7, 8) for sealing purposes.
The housing of one of the foregoing claims, characterized in that the sealing means (9, 10) are releasable as needed.
The housing of one of the foregoing claims, characterized in that the at least fluid coolant conduit (4) communicates with a fluid inlet (11) and a fluid outlet (12).
The housing of one of the foregoing claims, characterized in that the fluid inlet (11) and the fluid outlet (12) are located in the bearing plate (2, 3).
The housing of one of the foregoing claims, characterized in that the fluid inlet (11) is located in the A-bearing plate (2).
The housing of one of the foregoing claims, characterized in that the fluid outlet (12) is located in the B-bearing plate.
The housing of one of the foregoing claims, characterized in that stator connection wires (13) are provided, which are separately sealed off and/or carried to the outside through the bearing plate (2, 3) by the sealing means (9, 10).
A method for producing a stator winding head which is fluid-tight at least in some portions and which has at least one A-winding head (1a), characterized in that it includes the following steps:
- a) providing a first forming tool (14), which is adapted to the A-winding head (1a);
- b) filling potting composition (15) into the forming tool (14);
- c) plunging the A-winding head (1a) into the forming tool (14) filled with potting composition (15);
- d) curing the potting composition (15);
- e) separating the potted A-winding head (1a) from the first forming tool (14), in order to obtain a winding head whose A-winding head is at least partly covered by a first covering element (16) of cured potting composition (15).
A method for producing a stator winding head which is fluid-tight at least in some portions and which has at least one A-winding head (1a), characterized in that it includes the following steps:
- k) providing a cup-shaped first forming part (24, 27);
- l) introducing at least a portion of the A-winding head into the first cup-shaped forming part (24, 27).
A method for producing a stator winding head which is fluid-tight at least in some portions, which has at least one winding head (1a, 1b) that is disposed adjacent to a stator iron (36), characterized in that it includes the following steps:
- p) disposing a first forming part (32) and/or a second forming part (33) and/or a third forming part (34) and/or a fourth forming part (35) on the stator iron (36), in such a way-that each forming part (32, 33, 34, 35) extends at least in some portions in spaced-apart fashion from the winding head (1a, 1b);
- q) filling up the spacings between the forming parts (32, 33, 34, 35) and the winding head (1a, 1b) with potting composition (15);
- r) coating still-bare portions of the winding head (1a, 1b) with potting composition (15).
Dependencies are inferred from the claim text.