WO2014184040A1 - Elektromotor - Google Patents
Elektromotor Download PDFInfo
- Publication number
- WO2014184040A1 WO2014184040A1 PCT/EP2014/059146 EP2014059146W WO2014184040A1 WO 2014184040 A1 WO2014184040 A1 WO 2014184040A1 EP 2014059146 W EP2014059146 W EP 2014059146W WO 2014184040 A1 WO2014184040 A1 WO 2014184040A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- housing
- electric motor
- cooling
- rotor
- stator core
- Prior art date
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
Definitions
- the invention relates to an electric motor with a stator, a rotor and a cooling circuit for the rotor, comprising a housing with a substantially cylindrical jacket-shaped sheath, wherein in the sheath a outwardly extending with respect to the cylinder in the axial direction directed recess is introduced.
- Electric motors are used to generate mechanical, usually rotational energy from electricity.
- Electromotive ⁇ ren the force exerted by a magnetic field on current-carrying conductor of a coil is converted into movement. They include a static stand and a rotating, stored in corresponding bearings runners.
- the coil windings can either be arranged on the rotor, or - in electric motors with internal permanent magnets - on the stator.
- a hollow cylindrical stator core within the housing arranged with arranged on the outside, grooves, wherein in the grooves cooling lines are arranged, and wherein the stator core arranged on the outside, in the axial direction extending recesses, the part of a Cooling circuit for the runner are.
- the invention is based on the consideration that a particularly simple internal ⁇ cooling can be realized by the integration of cooling paths for cooling air in the housing.
- the cooling paths are realized as recesses in the sheath, are directed outwards and extend along the axial direction. Since the housing encloses the stator and the recesses border directly on the stator of the electric motor, thus resulting in an effective area for cooling air for cooling the components lying within the housing. Due to the axial extent of the recesses they are easily accessible from the axial ends of the housing and can be integrated into a corresponding cooling circuit.
- the electric motor further comprises a within the
- the St Sblechpa- ket is effectively cooled on the one hand, on the other hand, the cooling ducts directly adjacent to the notches and thus enable a particularly effective heat exchange with.
- the stator core comprises recesses arranged on the outside, which are part of a cooling circuit for the rotor.
- Cooling air passed through the recesses, which is supplied to the openings in the cover plates and discharged, both the stator via the cooling lines and the rotor over the wells with the connected thereto internal cooling circuit is effectively cooled.
- internal cooling for the rotor is achieved in a particularly simple way.
- several similar Aussparun ⁇ conditions are distributed distributed in the circumferential direction. As a result, the area for the heat exchange is further increased and thus improves the cooling effect.
- a uniform Wär ⁇ meübertragung along the entire circumference of the housing ER is sufficient.
- four recesses are introduced at regular intervals.
- the four recesses thus form a square in a radial-azimuthal section.
- the housing comprises an axial end region with two corners, which are connected by a straight edge, which is arranged in the radial direction beyond the circumference of the cylinder.
- the basically cylindrical housing merges into an angular shape in its axial end region. Since the edge extends beyond the circumference of the cylinder in the ra ⁇ dialer direction, it can be used directly as Aufstellkante or for fixing feet of the housing. This allows the housing a particularly simple installation at the site.
- the axial end portion in cross-section substantially square and includes the circumference of the cylinder.
- a square shape of the housing closing the cylinder at the two axial ends is relatively easy to manufacture and also offers additional space for the attachment of auxiliary terminal boxes or monitoring devices.
- the housing is produced by casting. This allows a much cheaper and easier production than a steel construction.
- the described simple structure without double Zylin ⁇ dermantel for external cooling makes a simple Gusskon ⁇ constructive tion possible.
- the respective groove is advantageously designed as a staple, d. H.
- the opening of the groove is narrower than its interior, so that the cooling line can be pressed and then held in a form-fitting manner in the groove. This allows easy installation of the electric motor.
- the electric motor comprises a Aufsetzkühler.
- the engine concept described it ⁇ enables in a simple way the use of a Friedsetzkühlers, which may be connected to the openings in the cover plates and is formed as an air / air or air / water heat exchanger.
- the Aufsetzkühler can be easily connected to the arranged in the cover plates openings.
- the advantages achieved by the invention are in particular that a particularly simple integration of an internal cooling circuit for the rotor of the electric motor is achieved by the introduction of axial recesses in the single-walled jacket of an electric motor with use of cooling lines and in particular recesses in the stator core.
- the concept can be used for high- and low-voltage motors, for round wire and flat wire windings.
- the cooling pipes can be easily inserted into the stator Sheet metal pack clicked and additionally pressed or potted for a better heat transfer. They can be prefabricated due to the simple meander-shaped configuration, so that a cost-effective installation is possible, and can be connected both in series and in parallel.
- the motor concept allows a flexible arrangement of the terminal box at both axial ends, while also leaving a relatively large space for the arrangement of monitoring devices or auxiliary terminal boxes.
- FIG. 1 shows a housing for an electric motor with an internally arranged stator core
- FIG 3 The housing with stator core with inserted
- Cooling pipes in radial-azimuthal section Cooling pipes in radial-azimuthal section
- the housing 1 shows a housing 1 for an electric motor in the up-see.
- the housing 1 is made as a casting, but may alternatively be made of steel. It comprises a single-walled casing 2, which is configured essentially in the shape of a cylinder jacket. At the axial ends of the cylinder bearing plates 4 are arranged, which form the top or bottom surface of the cylinder. In the axial edge regions of the casing 2 advances into a square shape to allow a buildin ⁇ account the bearing shields. 4 The side length of the in cross-section square axial end portions exceeds the circumference of the cylinder of the shell.
- a side surface of the axial end region forms a Aufstellkante on which the housing is placed.
- four feet 5 are additionally provided on the underside in the region of beidseiti ⁇ gen edges.
- the end shields 4 comprise a central, circular opening 6 for supporting the rotor, not shown, of the electric motor.
- each mounting holes 8 are arranged with which the bearing plates 4 are fixed.
- the housing 1 comprises four radially outwardly bulging recesses 12 in the cylindrical part which extend straight in the axial direction.
- the recesses 12 are configured identically and terminate in the region of the corners of the end shields 4 and the axial end regions of the housing 1, respectively.
- FIG 2 shows the housing 1 without stator core 10 and La ⁇ shield 4 from the same direction as FIG 1, wherein on the right side of FIG 2, a portion of the housing 1 is broken.
- 2 shows the transition of the housing 1 from the zy ⁇ cylindrical to the square cross-sectional shape to the axial ends. In the corners at the axial ends openings 14 are introduced.
- 3 shows the housing 1 with stator core 10 and bearing ⁇ shields 4, wherein on the right side of FIG 3 also a part of the housing 1 is broken and the view of the stator core 10 releases.
- the stator core 10 is substantially hollow cylindrical and has grooves 16 on the inside for wire windings of the stator.
- the electric motor is thus configured for internal Perma ⁇ mag- nets or Asynchron devisr.
- the stator core 10 has on the outside in the axial direction extending grooves 18 and recesses 20.
- the grooves 18 are formed as staple grooves, are introduced into the cooling lines 22, in which cooling water is led.
- the cooling lines 22 are made of stainless steel, copper or aluminum.
- the cooling lines 22 extend along a groove 18, to a semi-circular piece is adjoined to the axial exit from the stator core 10 at ⁇ which opens again in a further groove 18th As a result, the cooling lines 22 meander around the stator core 10.
- the recesses 20 are part of a cooling circuit, not shown, for the rotor.
- Cooling air is guided into the recesses 12.
- the Aussparun ⁇ gene 12 directly adjacent to the stator core 10 and are partially in direct contact with the cooling lines 22 and the wells 20.
- the cooling water is cooled in the cooling lines 22 for cooling the stator.
- the recesses 20 are partially directly in contact with the recesses 12, in part, there is a heat exchange over the stator core 10. Since the wells are 20 parts of a cooling circuit for the rotor, as well as an effec ⁇ tive cooling of the rotor is achieved.
- FIG 4 shows the stator core 10 in the plan view with the grooves 16 on the inside for the wire windings, the grooves 18 on the outside for the cooling lines 22 and the recesses 20 on the outside for the inner cooling circuit of the rotor.
- 5 shows the housing 1 with the stator core 10 having been laid ⁇ cooling conduits 22 in the radial-azimuthal section in the axial, square end portion.
- a part of the housing 1 has broken out on the right side.
- 5 shows once again the position of the stator core 10 flush in the cylindrical part of the casing 2, as well as the contact the recesses 12 in the casing 2 to the cooling lines 22 and recesses 20 in the laminated core.
- FIG. 6 shows a plan view of the housing 1 with Aufsetzkühler 24 arranged thereon.
- the Aufsetzkühler 24 has approximately the same dimensions as the housing 1 and is set to this ⁇ .
- the Aufsetzkühler 24 is designed as an air / air or air / water heat exchanger.
- 7 shows an example of the attachment of a cooling line 22 in a groove 18.
- the groove 18 is designed as a staple groove and thus tapers towards its outlet.
- the groove 18 thus has an opening which is formed by a constriction of the groove 18.
- the cooling line 22, which has a larger diameter than a width of the opening in the circumferential direction, is pressed into the groove 18 through the constriction.
- a large force acts on the cooling line 22 when the cooling lines 22 are pressed in.
- the cooling line 22 is deformed on the side facing the exit of the groove 18, so that a along the main extension direction of the cooling line 22 extending groove 26 is pressed present.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Motor Or Generator Frames (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201480028171.3A CN105284032B (zh) | 2013-05-14 | 2014-05-06 | 电动机 |
BR112015028494A BR112015028494A2 (pt) | 2013-05-14 | 2014-05-06 | motor elétrico |
RU2015148659A RU2628017C2 (ru) | 2013-05-14 | 2014-05-06 | Электродвигатель |
EP14724365.3A EP2982021B1 (de) | 2013-05-14 | 2014-05-06 | Elektromotor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13167613.2A EP2804291A1 (de) | 2013-05-14 | 2013-05-14 | Gehäuse für einen Elektromotor |
EP13167613.2 | 2013-05-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014184040A1 true WO2014184040A1 (de) | 2014-11-20 |
Family
ID=48430512
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2014/059146 WO2014184040A1 (de) | 2013-05-14 | 2014-05-06 | Elektromotor |
Country Status (5)
Country | Link |
---|---|
EP (2) | EP2804291A1 (de) |
CN (1) | CN105284032B (de) |
BR (1) | BR112015028494A2 (de) |
RU (1) | RU2628017C2 (de) |
WO (1) | WO2014184040A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020135981A1 (en) | 2018-12-26 | 2020-07-02 | Arcelik Anonim Sirketi | A motor comprising a stator fixed to the casing |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108023442B (zh) * | 2017-12-22 | 2020-01-07 | 武汉船用电力推进装置研究所(中国船舶重工集团公司第七一二研究所) | 一种电机的水冷结构 |
EP3716452B1 (de) * | 2019-03-28 | 2023-08-02 | Sumitomo Heavy Industries, Ltd. | Aktuator zur montage an einer spritzgiessmaschine, aktuatorkühlvorrichtung, spritzgiessmaschine und verfahren zur verwendung einer aktuatorkühlvorrichtung |
CN110504783B (zh) * | 2019-09-18 | 2024-07-09 | 江苏富丽华通用设备股份有限公司 | 一种永磁电机的外壳组件及永磁电机 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0072999A1 (de) | 1981-08-28 | 1983-03-02 | Robert Bosch Gmbh | Elektrische Maschine, insbesondere Drehstromgenerator, mit innenliegenden Kühlkanälen |
US20120062057A1 (en) | 2009-03-17 | 2012-03-15 | Kabushiki Kaisha Toshiba | Traction motor |
WO2012159661A2 (de) | 2011-05-24 | 2012-11-29 | Siemens Aktiengesellschaft | Selbsttragendes gehäuse einer dynamoelektrischen maschine |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU658666A1 (ru) * | 1976-03-22 | 1979-04-25 | Kutsyn Nikolaj A | Статор электрической машины |
SU1667201A1 (ru) * | 1989-03-09 | 1991-07-30 | Ленинградское Производственное Электромашиностроительное Объединение "Электросила" Им.С.М.Кирова | Статор электрической машины с жидкостным охлаждением и способ его изготовлени |
DE19749108C5 (de) * | 1997-11-06 | 2004-01-22 | Siemens Ag | Elektromotor |
CN101382532B (zh) * | 2008-10-15 | 2012-09-26 | 刘晓真 | 自动判断面团醒发状态的装置及方法 |
-
2013
- 2013-05-14 EP EP13167613.2A patent/EP2804291A1/de not_active Withdrawn
-
2014
- 2014-05-06 EP EP14724365.3A patent/EP2982021B1/de active Active
- 2014-05-06 BR BR112015028494A patent/BR112015028494A2/pt not_active Application Discontinuation
- 2014-05-06 CN CN201480028171.3A patent/CN105284032B/zh active Active
- 2014-05-06 RU RU2015148659A patent/RU2628017C2/ru active
- 2014-05-06 WO PCT/EP2014/059146 patent/WO2014184040A1/de active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0072999A1 (de) | 1981-08-28 | 1983-03-02 | Robert Bosch Gmbh | Elektrische Maschine, insbesondere Drehstromgenerator, mit innenliegenden Kühlkanälen |
US20120062057A1 (en) | 2009-03-17 | 2012-03-15 | Kabushiki Kaisha Toshiba | Traction motor |
WO2012159661A2 (de) | 2011-05-24 | 2012-11-29 | Siemens Aktiengesellschaft | Selbsttragendes gehäuse einer dynamoelektrischen maschine |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020135981A1 (en) | 2018-12-26 | 2020-07-02 | Arcelik Anonim Sirketi | A motor comprising a stator fixed to the casing |
Also Published As
Publication number | Publication date |
---|---|
EP2982021B1 (de) | 2016-12-14 |
BR112015028494A2 (pt) | 2017-07-25 |
CN105284032A (zh) | 2016-01-27 |
EP2982021A1 (de) | 2016-02-10 |
RU2628017C2 (ru) | 2017-08-14 |
EP2804291A1 (de) | 2014-11-19 |
RU2015148659A (ru) | 2017-06-19 |
CN105284032B (zh) | 2018-08-10 |
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