EP3900164A1 - Elektromotor mit einem statorgehäuseteil - Google Patents
Elektromotor mit einem statorgehäuseteilInfo
- Publication number
- EP3900164A1 EP3900164A1 EP19817154.8A EP19817154A EP3900164A1 EP 3900164 A1 EP3900164 A1 EP 3900164A1 EP 19817154 A EP19817154 A EP 19817154A EP 3900164 A1 EP3900164 A1 EP 3900164A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- groove
- housing part
- stator housing
- electric motor
- channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 3
- 238000009749 continuous casting Methods 0.000 claims description 16
- 238000004804 winding Methods 0.000 claims description 16
- 239000002826 coolant Substances 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000003754 machining Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/14—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle
- H02K9/16—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle wherein the cooling medium circulates through ducts or tubes within the casing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
Definitions
- the invention relates to an electric motor with a stator housing part.
- an electric motor has a rotor which is rotatably mounted relative to a stator housing part.
- the stator housing part receives a laminated core with a stator winding.
- the object of the invention is therefore to make a water-cooled electric motor inexpensive and with a high degree of protection.
- stator housing part is made from a continuous casting profile part, in particular aluminum continuous casting profile part, the continuous casting profile part having axially continuous, spaced-apart channels, in particular being axially arranged in a center in the stator housing part
- stator housing part in particular in its first axial end region, having a first groove which is open in the axial direction and in particular is introduced into a first axial end face of the stator housing part and which has at least a first channel and a second channel connects in the circumferential direction
- stator housing part in particular in its second axial end region, a second, open against the axial direction, in particular in a second axial end face of the Has introduced stator housing part, groove which connects at least the second channel with a third channel in the circumferential direction.
- stator housing part can be produced easily and without effort. Because a continuous cast profile part can be used, in which recesses for the formation of channels and a central cylindrical recess can be provided, in which the laminated core with stator winding can be received.
- the continuous cast profile part only has to be cut off at both axial ends, an axially protruding centering collar cutting
- Both grooves preferably do not run completely around in the circumferential direction, but each connect channels of the continuous cast profile part.
- a flat gasket is placed on the front, which thus covers the groove.
- an O-ring is received in a circumferential ring groove which is open radially outwards. The O-ring accommodated in the ring groove seals against the bearing flange
- a laminated core is included in the stator housing part
- Stator winding included, wherein a rotor of the electric motor is rotatably supported by means of at least one bearing, the bearing being received in a bearing flange which is screwed to the
- Stator housing part is connected.
- the advantage here is that the stator packet and thus the stator winding can be heated by means of the stator housing part through which a cooling medium flows.
- stator housing part has a cylindrical one
- the advantage here is that a shape for the laminated core with Stator winding is effected.
- the laminated core is limited radially outwards by the cylindrical inner surface.
- the one covered by the first groove in the circumferential direction is
- the circumferential angle range covered by the second groove in the circumferential direction is less than 360 °.
- the advantage here is that channels can be connected to one another by means of the first or second groove.
- the first groove is on the first face of the
- Stator housing part and the second groove arranged on the second end face of the stator housing part.
- the radial distance areas covered by the channels overlap one another or are the same, in particular the smallest radial distance of each of the channels being identical.
- the advantage here is that the first and the second groove can be arranged at a constant radial distance, that is, they can be designed as annular grooves extending in the circumferential direction.
- the first groove is formed from two or more groove regions, the groove regions being spaced apart from one another in the circumferential direction, in particular wherein the second groove is formed from a number of groove regions which is reduced by one compared to the number of the first groove forming groove areas.
- the advantage here is that a respective group of channels can be connected by means of the respective groove area and thus a meandering flow through the stator housing part can be effected.
- the groove is designed as a single or multiple interrupted ring groove, in particular as an annular groove open everywhere along the groove in the axial direction, in particular wherein the ring axis of the ring groove is coaxial with the axial direction of the electric motor.
- Machining tool in particular turning tool or milling tool, is simply or repeatedly moved axially into or pulled out of the continuous casting when machining the annular groove.
- the number of groove areas is determined during manufacture by the number of axial movements.
- a first groove area of the first groove connects the first channel to the second channel and a second groove area of the first groove connects a third channel to a fourth channel, a first groove area of the second groove connecting the second channel to the third channel and the second groove area of the second groove connects the fourth channel to another channel.
- a connection for coolant, in particular water is attached to the stator housing part, which opens into the first channel, in particular wherein another connection for coolant, in particular water, is attached to the stator housing part, which opens into a channel spaced from the first.
- an inlet must be attached to a first of the channels and an outlet for the cooling medium, in particular water, to another.
- a centering collar protrudes axially on the stator housing part, which is arranged radially inside the groove.
- the radial distance here always refers to the distance to the axis of rotation of the rotor.
- the stator housing part has a flat cutting surface radially outside the centering collar on both end faces, the normal direction of which is aligned parallel to the axial direction, in particular wherein the cutting surface delimits the groove, the channels and the stator housing part in the axial direction or opposite to the axial direction.
- the advantage here is that the annular groove can be introduced in a simple manner.
- the flat surface can be used as a contact surface for a flat gasket.
- the respective bearing flange has an annular groove, which in the circumferential direction preferably completely encircles the centering collar, in particular an uninterrupted annular groove.
- the centering collar is completely circumferential, in particular continuously, in the circumferential direction.
- stator housing part has a discrete one
- Rotational symmetry in particular with a 90 ° angle of rotation, with the axis of symmetry being the axis of rotation of the rotor of the electric motor.
- the advantage here is that a particularly simple production is possible.
- the respective groove is covered by a respective flat seal which is arranged between the stator housing part and a respective bearing flange, the respective bearing flange, in particular by means of respective screws, to the
- Stator housing part is pressed, in particular wherein the flat seal is arranged radially outside the centering collar. in particular where a seal is arranged on the centering collar projecting axially from the continuous casting profile part and seals off towards the bearing flange.
- Flat gasket is sealed to the outside and is sealed inwards by means of the O-ring between the stator housing part and the bearing flange. the flat seal at a first axial position between the bearing flange and
- Stator housing part is arranged, the flat seal at a second axial position between the bearing flange and
- Stator housing part is arranged, wherein the first axial position is arranged closer to the channels than the second axial position, in particular wherein the radial distance area covered by the flat seal is arranged radially outside the radial distance area covered by the seal. It is advantageous that the flat seal seals against the external environment and seals against the preferably grease-lubricated or oil-lubricated bearing of the rotor accommodated in the bearing flange.
- FIG. 3 shows a cross section through a partial area of the motor.
- FIG. 4 shows a top view of the stator housing part 1 of the electric motor.
- the electric motor has a stator housing part 1 made from a continuous cast part.
- a laminated core with a stator winding 30 is provided in the stator housing part 1.
- the rotor of the electric motor is rotatably supported by bearings which are accommodated in flange parts 3 and 4, that is to say bearing flanges.
- the flange parts 3 and 4 are connected to the stator housing part 1 by means of screws.
- the stator housing part 1 is arranged axially between the two flange parts (3, 4).
- the stator housing part 1 has axially continuous channels 33 which are separated and spaced apart in the circumferential direction and which are used for the passage of the coolant.
- the stator housing part 1 is shaped as an inner cylinder toward the laminated core with stator winding. Radially outside the inner cylinder, the channels 33 are arranged, which at
- Continuous casting can be produced without special effort and in a material-saving manner.
- a centering collar 20 is machined out of the continuous cast profile part, in particular by means of turning.
- the centering collar 20 thus protrudes axially on both sides.
- a groove 32 extending in the circumferential direction and axially projecting into the continuous casting profile part is introduced, which is arranged radially outside the centering collar 20 and is thus covered by this flat seal 21 after a flat seal 21 has been placed on the axial end face of the continuous casting profile part.
- the groove 32 thus enables coolant, in particular water, to pass from a first of the channels 33 to a second of the channels 33. Because the channels 33 extend in the axial direction, the groove 32, however, extends in the circumferential direction.
- Such a groove 32 is also on the second axial side of the continuous casting profile part
- the groove 32 is not completely circumferential in the circumferential direction in the first axial end region. All channels 33 which open into the groove are thus connected by means of the groove 32 for coolant exchange. In other words, the groove 32 is simply contiguous in the circumferential direction, in particular thus continuously or in one piece.
- This groove 32 is thus composed of a plurality of groove areas spaced apart from one another.
- the coolant flowing in via the connection 2 arranged on the stator housing part 1 and flowing radially through the housing surface up to a channel for coolant, in particular water can be passed from this channel to the connected groove area 32 as a distributor and from this groove area 32, which acts as a distributor into another channel, from which the coolant then flows into the other groove 32 on the side axially facing away from the groove area 32 and from there through a further connection to the outside.
- Terminal board is arranged so that supply lines can be electrically connected.
- an O-ring 31 is inserted into a completely circumferential annular groove in the stator housing part 1.
- the same sealing arrangement is formed axially on both sides, formed from O-ring 31 and flat seal 21.
- each of the grooves 32 is subdivided into a plurality of groove regions, so that a meandering flow through the stator housing part 1 is made possible.
- the first groove 32 that is to say the groove 32 arranged in the first axial end region, is composed of N groove regions, where N is a natural number.
- the other groove 32 that is to say the groove 32 arranged in the other axial end region, is composed of N + 1 groove regions.
- stator winding in particular stator winding accommodated in the laminated core
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018009797 | 2018-12-18 | ||
| PCT/EP2019/025433 WO2020126075A1 (de) | 2018-12-18 | 2019-12-04 | Elektromotor mit einem statorgehäuseteil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3900164A1 true EP3900164A1 (de) | 2021-10-27 |
Family
ID=68835146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19817154.8A Pending EP3900164A1 (de) | 2018-12-18 | 2019-12-04 | Elektromotor mit einem statorgehäuseteil |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3900164A1 (de) |
| DE (1) | DE102019008412A1 (de) |
| WO (1) | WO2020126075A1 (de) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010050348B4 (de) * | 2010-11-05 | 2022-05-25 | Sew-Eurodrive Gmbh & Co Kg | Elektromotor und Bausatz zu seiner Herstellung |
| DE102010054027B4 (de) * | 2010-12-09 | 2026-02-19 | Sew-Eurodrive Gmbh & Co Kg | Getriebemotor |
| DE102011008523B4 (de) * | 2011-01-13 | 2015-03-26 | Sew-Eurodrive Gmbh & Co Kg | Elektromotor |
-
2019
- 2019-12-04 DE DE102019008412.8A patent/DE102019008412A1/de active Pending
- 2019-12-04 WO PCT/EP2019/025433 patent/WO2020126075A1/de not_active Ceased
- 2019-12-04 EP EP19817154.8A patent/EP3900164A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020126075A1 (de) | 2020-06-25 |
| DE102019008412A1 (de) | 2020-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1649575B1 (de) | Elektrische maschine mit läuferkühlung | |
| WO2020126076A1 (de) | Elektromotor mit einem statorgehäuseteil | |
| DE60216863T2 (de) | Elektrischer Motor mit zwei Rotoren und einem Stator | |
| EP3480929B1 (de) | Gekühltes gehäuse für den stator eines direktantriebs | |
| EP3127223B1 (de) | Elektrische maschine | |
| EP3788681B1 (de) | Schleifring, schleifringeinheit, elektrische maschine und windkraftanlage | |
| EP2871756B1 (de) | Kurbelwellen-Startergenerator und Gehäuse für einen Kurbelwellen-Startergenerator | |
| DE2338395C3 (de) | Kraftstoffförderpumpe, insbesondere für Kraftfahrzeuge | |
| DE102004050645B4 (de) | Gehäuse einer elektrischen Maschine mit in einer Gehäusewand verlaufenden Kühlkanälen | |
| DE1538817C3 (de) | Kühlsystem für dynamoelektrische Maschinen | |
| DE10019914A1 (de) | Durch ein internes Kühlmittel gekühlter Wechselstromgenerator für Kraftfahrzeuge | |
| WO2021069132A1 (de) | Elektrische maschine mit bypass-kühlkanal | |
| DE102021214488A1 (de) | Kühlanordnung zur Kühlung eines Stators für eine elektrische Maschine | |
| WO2020228897A1 (de) | Elektrische antriebseinheit für ein kraftfahrzeug | |
| EP2539061B1 (de) | Rührwerk | |
| DE2158518C3 (de) | Horizontale mehrstufige Zentrifugalpumpe | |
| EP4097828A1 (de) | Kühlung eines elektrischen antriebs in einem elektrisch angetriebenen fahrzeug | |
| DE102014112223A1 (de) | Kühleinrichtung | |
| WO2023094501A1 (de) | Rotoranordnung für eine elektrische maschine sowie elektrische maschine mit der rotoranordnung | |
| WO2020126075A1 (de) | Elektromotor mit einem statorgehäuseteil | |
| EP3991279A1 (de) | Getriebemotor, insbesondere einer getriebemotorbaureihe, mit adapterteil | |
| DE19808797A1 (de) | Bausatz für Elektromotoren | |
| DE102012022481A1 (de) | Elektromotor mit einem Stator | |
| DE3735209A1 (de) | Elektromotor | |
| WO2024114995A1 (de) | Rotor-wellenanordnung mit fluidverteilungselement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20210719 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SEW-EURODRIVE GMBH & CO. KG |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
| 17Q | First examination report despatched |
Effective date: 20250127 |