MODULAR SEGMENTED STATOR PACKAGE

Abstract

A segmented stator has a plurality of individual teeth (12) connected to one another in the direction of rotation. Each individual tooth (12) has a connecting portion (17) to produce a nonpositive mechanical connection with at least one directly adjacent individual tooth (12). The respective connecting portion (17) has a groove-shaped fastening contour (18, 18a, 19, 19a), at least on one connecting side (17a, 17b), facing toward the directly adjacent individual tooth (12). The fastening contour (18, 18a, 19, 19a) of an adjacent individual tooth (12) can be connected to its connecting portion (17), such that a nonpositive connection is produced which ensures a magnetic flux.

Claims

1. A segmented stator comprises: a plurality of individual teeth that can be connected to one another in a direction of rotation; each individual tooth has a connecting portion to produce a nonpositive mechanical connection with at least one directly adjacent individual tooth; the respective connecting portion forms a groove-shaped fastening contour at least on one connecting side facing toward the directly adjacent individual tooth; the fastening contour enables an adjacent individual tooth to be connected to its connecting portion, so that a nonpositive connection is produced which ensures a magnetic flux.

2. The segmented stator as set forth in claim 1, where a slot, extending in the axial direction of the stator, is on at least one connecting side of the individual teeth, and a coupling web, corresponding to the cross-sectional shape of the slot is on an opposing side, the web engages in the respective slot on the directly adjacent individual tooth in order to mechanically couple or fix these two individual teeth together.

3. The segmented stator as set forth in claim 2, wherein groove slots, extending in the axial direction, are within the slot.

4. The segmented stator as set forth in claim 3, wherein the coupling webs include one or more web ears that extend outward in the axial direction and are correspondingly shaped and positioned that they engage in the respective groove slots when the respective coupling web engages in a corresponding slot.

5. The segmented stator as set forth in claim 1, wherein the connecting portion has a T-shaped cross section fastened to a radially outwardly extending toothed web and lateral portions protrude beyond the toothed web.

6. The segmented stator as set forth in claim 5, wherein a slot is formed in at least one of the lateral portions protruding beyond the toothed web.

7. The segmented stator as set forth in claim 2, wherein the coupling web is a hollow cylinder with a cylinder wall that extends in the axial direction and a receiving space and a gap dividing the cylinder wall in the axial direction.

8. The segmented stator as set forth in claim 1, wherein two respective interconnected individual teeth can be connected to one another to form a circumferential joining gap.

9. The segmented stator as set forth in claim 7, wherein a press-fit pin of two interconnected individual teeth is introduced into the receiving space so that a press-fit occurs between the coupling web and the corresponding slot where the coupling web is inserted.

10. The segmented stator as set forth in claim 1, wherein the individual teeth each include two respective connecting sides with an L-shaped slot that extends respectively in the axial direction of the stator and a commensurately shaped connecting clip to engage in the respective slot on both sides in order to fix the adjacent individual teeth against one another, thereby mechanically coupling these two individual teeth together.

11. The segmented stator as set forth in claim 10, wherein the connecting clip is U-shaped with two legs that extend toward one another at an oblique angle, the U-shaped connecting clip inserted, with the legs in the axial direction, into the slots of two adjacent individual teeth to form a positive and/or nonpositive connection.

Description

DRAWINGS

[0025] Other advantageous refinements of the disclosure are characterized in the subclaims and/or depicted in greater detail below together with the description of the preferred embodiment of the disclosure with reference to the figures. In the drawing:

[0026] FIG. 1 is a partial section schematic view of a segmented stator with two individual teeth connected to one another;

[0027] FIG. 2 is a view of a detail from FIG. 1.

[0028] FIG. 3 is a section and perspective view of an alternatively designed individual tooth for a segmented stator together with two views of a connecting clip.

DETAILED DESCRIPTION

[0029] The disclosure will be explained in greater detail below on the basis of select exemplary embodiments with reference to FIGS. 1 to 3. The same reference symbols in the figures indicate structurally and/or functionally equivalent parts.

[0030] FIG. 1 shows a first exemplary embodiment, particularly a partial section of a segmented stator including two individual teeth 12 that are connected to one another in a schematic plan view.

[0031] The two individual teeth 12 are connected to one another in the direction of rotation. It can be seen that each of the two individual teeth 12 has a connecting portion 17 in order to produce the depicted mechanical connection with the directly adjacent individual tooth 12. The respective connecting portion 17 includes a fastening contour on the connecting side 17a or 17b facing toward the directly adjacent individual tooth 12. The depicted adjacent individual tooth is fixed to its connecting portion.

[0032] The individual teeth 12 have, on a connecting side 17a, 17b, a groove 18 that extends in the axial direction of the stator and, on an opposing side, a coupling web 19. The coupling web 19 protrudes in a manner corresponding to the cross-sectional shape of the groove 18 and engages in the groove of the adjacent tooth.

[0033] Groove slots 18a, extending in the axial direction, are disposed within the slot 18. Two web ears 19, that extend in the axial direction on the coupling webs 19, protrude commensurately outward and are appropriately designed and positioned such that they engage or protrude into the corresponding groove slots 18a upon engagement of the respective coupling web 19 as shown in FIG. 1.

[0034] The connecting portion 17 has an approximately T-shaped cross section with which it is fastened to a tooth web 20, that extends radially outward. Lateral portions 17c protrude beyond the toothed web 20.

[0035] As shown in the schematic view of FIG. 2, the coupling web 19 is embodied as a hollow cylinder. A cylinder wall 19a extends in the axial direction. Inside the wall 19a there is a receiving space 23 for a press-fit pin 40. For this purpose, the geometries are matched to one another so that there is a joining gap 30 that exists between the coupling web 19 and the slot 18 as long as the press-fit pin 40 has not been pressed into the channel in the coupling web.

[0036] The press-fit pin 40 is indicated only schematically in FIG. 1. If this press-fit pin 40 is introduced into the receiving space 23, a press fit is formed between the coupling web 19 and the corresponding slot 18 into which the coupling web 19 is inserted as the wall 19a is bent open.

[0037] FIG. 3 shows a view of an alternatively configured individual tooth for a segmented stator together with two views of a connecting clamp 41. For this purpose, the individual teeth 12 are each provided on two respective connecting sides 17a, 17b with an L-shaped slot 18. The slot 18 extends, respectively, in the axial direction of the stator. A commensurately shaped connecting clip 40 is designed to engage in the respective slot 18 on both sides in order to fix the adjacent individual teeth 12 together.

[0038] The connecting clip 40 is embodied, for instance, as a U-shaped profile with two profile legs 42. The legs 42 extend toward one another at an oblique angle. The legs 42 can be inserted in the axial direction into the slots 18 of two adjacent individual teeth to form a positive and/or nonpositive connection.

[0039] The foregoing description of the embodiments has been provided for purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure. Individual elements or features of a particular embodiment are generally not limited to that particular embodiment, but, where applicable, are interchangeable and can be used in a selected embodiment, even if not specifically shown or described. The same may also be varied in many ways. Such variations are not to be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure.