阅读说明：本技术 用于电机的绝缘单元 (Insulation unit for an electric machine ) 是由 R·维特施塔特 K·威拉克 J·威特曼 S·罗伊特 A·格鲁贝尔 M·埃伯特 于 2019-02-20 设计创作，主要内容包括：本发明涉及一种用于具有发卡式绕组的电机的绝缘单元(1),其中发卡式绕组具有用于与互连件(7)电连接的多个连接销(6)以及多个经焊接的发卡端部(5),并且其特征在于,设置有基体(2,2’,2”),基体具有绝缘的材料并且至少在发卡式绕组的周向的一部分上延伸；基体(2,2’,2”)在底侧包括容纳区域,容纳区域朝向发卡式绕组并且具有用于容纳发卡端部(5)的开口(3),其中至少在周向方向上在所述开口(3)之间设置有分隔壁(12),并且开口(3)和/或分隔壁(12)具有用于力配合并且/或者形状配合地与发卡端部(5)连接的紧固件。本发明还涉及一种具有这种绝缘单元(1)的电机、以及一种用于制造这种电机的方法。(The invention relates to an insulation unit (1) for an electric machine having a hairpin, wherein the hairpin has a plurality of connection pins (6) for electrical connection to an interconnection (7) and a plurality of soldered hairpin ends (5), and is characterized in that a base body (2, 2') is provided, which has an insulating material and extends at least over a part of the circumference of the hairpin; the base body (2, 2') comprises a receiving region on the bottom side, which faces the hairpin winding and has openings (3) for receiving the hairpin ends (5), wherein separating walls (12) are arranged at least in the circumferential direction between the openings (3), and the openings (3) and/or the separating walls (12) have fastening means for a non-positive and/or positive connection to the hairpin ends (5). The invention also relates to an electric machine having such an insulation unit (1) and to a method for producing such an electric machine.)

1. An insulation unit (1) for an electrical machine having a hairpin with a plurality of connection pins (6) for electrical connection to an interconnection (7) and a plurality of soldered hairpin ends (5), characterized in that a matrix (2, 2', 2 ") is provided which has an insulating material and extends at least over a part of the circumference of the hairpin; the base body (2, 2') comprises a receiving region on the bottom side, which faces the hairpin winding and has openings (3) for receiving the hairpin ends (5), wherein separating walls (12) are arranged between the openings (3) at least in the circumferential direction, and the openings (3) and/or the separating walls (12) have fastening means for a non-positive and/or positive connection to the hairpin ends (5).

2. Insulating unit (1) according to claim 1, characterised in that said basic body (2, 2', 2 ") has notches (8, 8") for passing through the connection pins (6) of the hairpin winding.

3. Insulation unit (1) according to claim 1 or 2, characterized in that the matrix (2, 2', 2 ") comprises the interconnections (7) for the connection pins (6) of the hairpin.

4. Insulating unit (1) as claimed in one of the preceding claims, characterized in that said fastening is a deformable region of said opening (3).

5. Insulating unit (1) according to claim 4, characterised in that the deformable region is constituted by a narrowing (10) which in turn extends at least over a part of the depth of the opening (3) and reduces the clear width of the opening (3) to a dimension (11) which is smaller than the hairpin end (5).

6. Insulating unit (1) according to claim 4, characterized in that the deformable area is constituted by the elastic material of the matrix (2') and the opening (3) is constituted by a smaller perforation than the hairpin end (5).

7. Insulation unit (1) according to claim 4, characterized in that the deformable area is constituted by the opening (3) and/or the partition wall (12), wherein the deformable area is formed by a rough-rolled thermoplastic which is shrinkable due to heat supply.

8. Insulating unit (1) according to one of the preceding claims, characterized in that the fastening is constituted by an adhesive provided in the opening (3) and/or on the partition wall (12).

9. Insulation unit (1) according to one of the preceding claims, characterized in that the basic body (2, 2', 2 ") has a closed surface at the top side facing away from the hairpin winding to prevent the hairpin end (5) from penetrating.

10. Insulating unit (1) as claimed in claim 9, characterized in that said base body (2, 2', 2 ") is formed in multiple pieces and said closed surface is constituted by a plate harder than said containment region.

11. Insulation unit (1) according to one of the preceding claims, characterized in that the opening (3) and/or the partition wall (12) have a softer coating than the material of the receiving area in order not to damage the insulation lacquer of the hairpin winding during assembly.

12. An electric machine with hairpin windings, characterized in that an insulation unit (1) according to one of claims 1 to 11 is provided.

13. The machine according to claim 12, characterized in that the insulation unit (1) is stitched with the hairpin.

14. Method for manufacturing an electrical machine according to one of claims 12 or 13, having an insulation unit (1) according to one of claims 1 to 11, comprising: providing the hairpin winding; positioning the insulating unit (1) on the hairpin winding with the opening (3) of the bottom side of the insulating unit (1) positioned towards the hairpin end (5); and fastening the insulating unit (1) on the hairpin by at least one of the following steps:

-pressing the hairpin end (5) into the opening (3) of the insulation unit (1) to establish a clamping connection;

-heating the insulating unit (1) to effect heat shrinking or curing of the fastener;

-stitching the insulating unit (1) with the winding heads of the hairpin winding.