Stator with pins for an electric machine

Patent metadata

Field	Value
Publication number	US-11770040-B2
Application number	US-202017120642-A
Country	US
Kind code	B2
Filing date	Dec 14, 2020
Priority date	Dec 17, 2019
Publication date	Sep 26, 2023
Grant date	Sep 26, 2023

Abstract

A stator for an electric machine includes a plurality of pins arranged on concentric circles at different distances to a stator center in slots, each concentric circle forming a layer, wherein six pins in different layers are serially connected to one another and form a winding. A first pin is located in a first slot in the 6n-1 layer, wherein n is an integer. A second pin is located in a second slot in the 6n layer, wherein the second slot has a first radial distance to the first slot in a first circumferential direction of the stator. A third pin is located in a third slot in the 6n-2 layer. A fourth pin is located in a fourth slot in the 6n-3 layer. A fifth pin is located in the first slot in the 6n-5 layer. A sixth pin is located in the second slot in the 6n-4 layer.

First claim

The invention claimed is:

1. A stator for an electric machine comprising:
a plurality of pins, which are arranged on concentric circles at different distances to a stator center in slots in the stator, and each concentric circle forming a layer; the concentric circles forming different layers from outwards to inwards, the layers being numbered in an ascending order from an outside inward to the stator center; and
a winding,
wherein in each case six pins in the different layers are serially connected to one another and form the winding;
a first pin of the winding is located in a first slot in a 6n-1 layer, wherein n is an integer;
a second pin of the winding is located in a second slot in a 6n layer, wherein the second slot has a first radial distance to the first slot in a first circumferential direction of the stator;
a third pin of the winding is located in a third slot in a 6n-2 layer;
a fourth pin of the winding is located in a fourth slot in a 6n-3 layer;
a fifth pin is located in the first slot in a 6n-5 layer; and
a sixth pin of the winding is located in the second slot in a 6n-4 layer.

2. The stator according to claim 1 , wherein the stator has at least two windings and at least the sixth pin in the second slot is connected to a seventh pin in the 6n-1 layer in a third slot by means of a sixth connection type.

3. The stator according to claim 2 , wherein the stator has a plurality of windings, which extend across an entire circumference of the stator and thereby form a partial coil.

4. The stator according to claim 3 , wherein three pins each from three partial coils are connected to one another by means of a seventh connection type or an eighth connection type and form a coil.

5. The stator according to claim 4 , wherein the partial coils form six coils, and these are assigned to three phases in such a way that in each case, two coils, which are assigned to a same phase, are located in four adjacent slots.

6. The stator according to claim 4 , wherein respectively one input inputs of end pins from at least two coils are connected to one another by means of a ninth connection type.

7. The stator according to claim 6 , wherein outputs of end pins of the at least two coils are connected to one another, and the two coils are thus switched in parallel, and are assigned to one phase.

8. A vehicle with an electric machine with a stator according to claim 1 .

9. The stator according to claim 1 , wherein the third slot to the fourth slot has a first distance, which is equal to the first distance between the second slot and the first slot.

10. The stator according to claim 1 , wherein the third slot lies adjacent to the first slot and on a same adjacent side in the circumferential direction as the fourth slot with respect to the second slot.

11. A stator for an electric machine comprising:
a plurality of pins, which are arranged on concentric circles at different distances to a stator center in slots in the stator, each concentric circle forming a layer;
wherein in each case, six pins in different layers are serially connected to one another and form a winding;
a first pin of the winding is located in a first slot in a 6n-1 layer, wherein n is an integer;
a second pin of the winding is located in a second slot in a 6n layer, wherein the second slot has a first radial distance to the first slot in a first circumferential direction of the stator;
a third pin of the winding is located in a third slot in a 6n-2 layer;
a fourth pin of the winding is located in a fourth slot in a 6n-3 layer;
a fifth pin is located in the first slot in a 6n-5 layer; and
a sixth pin of the winding is located in the second slot in a 6n-4 layer,
wherein the stator has a first end face and a second end face;
the first pin and the second pin are connected to one another on the second end face by means of a first connection type;
the second pin and the third pin are connected to one another on the first end face by means of a second connection type;
the third pin and the fourth pin are connected to one another on the second end face by means of a third connection type;
the fourth pin and the fifth pin are connected to one another on the first end face by means of a fourth connection type;
the fifth pin and the sixth pin are connected to one another on the second end face by means of a fifth connection type; and
wherein the first, second, third, fourth, and fifth connection types differ from one another.

Assignees

• Valeo Siemens Eautomotive Germany Gmbh

Inventors

• Dotz Boris

Classifications

• H02K15/021

  Magnetic cores · CPC title

• H02K3/28 Primary

  Layout of windings or of connections between windings (windings for pole-changing H02K17/06, H02K17/14, H02K19/12, H02K19/32) · CPC title

• B60K1/00

  Arrangement or mounting of electrical propulsion units (B60K7/00 takes precedence; arrangement or mounting of plural diverse prime-movers for mutual or common propulsion B60K6/00) · CPC title

• H02K3/12 Primary

  arranged in slots · CPC title

• H02K2213/03

  Machines characterised by numerical values, ranges, mathematical expressions or similar information · CPC title