EP3207622A1 - Durchzugsbelüftete elektrisch erregte synchronmaschine - Google Patents
Durchzugsbelüftete elektrisch erregte synchronmaschineInfo
- Publication number
- EP3207622A1 EP3207622A1 EP15795193.0A EP15795193A EP3207622A1 EP 3207622 A1 EP3207622 A1 EP 3207622A1 EP 15795193 A EP15795193 A EP 15795193A EP 3207622 A1 EP3207622 A1 EP 3207622A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- synchronous machine
- rotor
- electrically excited
- excited synchronous
- ventilated
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K19/00—Synchronous motors or generators
- H02K19/02—Synchronous motors
-
- 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
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/24—Rotor cores with salient poles ; Variable reluctance rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/18—Windings for salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/38—Windings characterised by the shape, form or construction of the insulation around winding heads, equalising connectors, or connections thereto
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
Definitions
- Draft-ventilated electrically excited synchronous machine The invention relates to a draft-ventilated electrically-excited synchronous machine .
- Duct-ventilated dynamo-electric machines in particular electrically excited synchronous machines, have design-related and thermal reasons an air flow within the dynamoelectric machine, which is partially directed against the direction of movement of the rotating parts of this machine. This raises particular at comparatively ⁇ as high relative speeds of the various machine parts abrasion among others at the insulation of the coils on the pole bodies of the rotor a. This is especially the case when such a dynamoelectric machine is used in a dusty environment. So far, a protection of the pole coils is achieved in that an elastic mass, such as silicone directly on the
- Abrasion affected winding parts of the rotor is brought.
- Heat dissipation in particular of the coil winding head of the rotor leads.
- maintenance work eg re- impregnation of the winding of the rotor, can only be carried out with comparatively high outlay.
- the present invention seeks to provide ei ⁇ ne fürzugsbeluitedete electrically excited synchronous machine, which provides sufficient protection against abrasion with sufficient heat dissipation and relatively good accessibility of the individual machine parts, in particular ⁇ special of the rotor for maintenance.
- a continuous-ventilated, electrically excited synchronous machine is understood to be a synchronous machine which operates via
- Coils of a rotor can be electrically excited.
- the coils are fed electrically via slip rings or via the known brushless excitation devices.
- At least one self-ventilator and / or at least one external fan generates by means of ambient air one or more cooling air streams through the machine.
- the protective elements are mounted in such a way that the coil worm heads of the winding of the rotor are protected against abrasion. This is especially guaranteed if the
- Protective elements viewed in the direction of rotation of the rotor are respectively mounted in front of the coil winding heads.
- the protective elements are made of metal (steel or aluminum) or plastic.
- Protection elements made of plastic individually or as a one-piece shield are light and a ⁇ times to produce, so that the inertia of the rotor changed only unommet ⁇ Lich by the protective elements, or the protective device.
- the protective elements or protective devices made of plastic are comparatively easy to produce, for example by injection molding.
- the metallic protective elements are produced individually or as a protective device. Here, for example, casting, possibly with subsequent at least partial ⁇ chipping post given area-suitable surfaces, such as the shaft seat of the guard.
- the protection elements are individually before and can accordingly formed buildin ⁇ actuating devices, such as snap connections, Klemmvorrich- obligations, screw connections etc. are fixed on the pole body of the rotor.
- buildin ⁇ actuating devices such as snap connections, Klemmvorrich- obligations, screw connections etc.
- the protective elements are designed cup-shaped.
- the geometric configuration of the protective elements is such that viewed in the direction of rotation about the first half of the Spu ⁇ lenwickelköpfes is covered. This is particularly advantageous in zugsbel separatedete by ⁇ electrically excited synchronous machine with only one direction of rotation, because in spite of this in such a way designed protective elements adjusts a cooling effect on the coils of the rotor
- fastening means are provided on each protective element in order to attach further elements to the protective elements.
- these are, for example, fan blades and / or balancing weights which a subsequent balancing of the rotor ge ⁇ equip.
- the protective elements are provided at their radially outer edge with a curvature which deflects a substantially radial air flow along the protective elements substantially axially and thus leads away from the end face of the rotor. This configuration of the protective element avoids that a radial air flow with the particles is guided on the winding head of the stator and there leads to Abrasionsproblemen.
- such a machine with shell-shaped protective elements is designed only for one direction of rotation.
- a gap between the protective elements is a gap between
- Protective element and winding head provided which complies with the insulation ⁇ technical distances and also meets the cooling requirements. It is decelerated out with particles in the gap between the protection element and surface of the coil preferably a cooling air stream ⁇ .
- the protective elements are sufficiently spaced when the air gaps so the isolation distances are met and a further air flow can take place in this gap free of particles of high kinetic energy.
- the axial air mass flow through the pole gaps is not limited. This further ensures a maximum cooling ⁇ performance of the coil sides and thus the coils of the rotor.
- FIG 1 shows a longitudinal section of a permanently excited Syn ⁇ chronmotors with through-ventilation
- FIG. 1 shows in a longitudinal section a passage-ventilated electrical excited synchronous machine 1 with a stator 2 and a rotor 3. At the end faces of the stator 2 is a
- Statorwickelkopf 4 available.
- the rotor 3 has radially outwardly projecting pole pieces 13 which coil in each case with a pole 15 are provided and 5 form in their entirety the rotor Wick ⁇ lung.
- the pole coils 15 are supplied via a non-illustrated slip ring assembly or a brushless exciter device with electrical power. At the end faces of the rotor 3 while Spulenwickelkexcellent 16 of these pole coils 15 are visible.
- the rotor 3 is rotatably mounted on a shaft 7 which rotates about an axis 12. By electromagnetic interaction of the winding ⁇ systems of the stator 2 and rotor 3 on the air gap 14 away, the dynamoelectric machine is operated as a motor or as a generator.
- cooling air streams 19 are distributed within the machine and flow, inter alia, via cooling channels in stator 2, rotor 3, the pole gaps 28 of the rotor 3 and the air gap 14.
- the protective elements 11 are arranged on a ring 10 and thus form a protective device 21.
- the protective elements 11 are arranged on ⁇ .
- the protective elements 11 are executed in cross-section pe ⁇ tet shell-shaped and thus form viewed from the air gap 14 from an angle of about 90 °.
- the angle of a protective element 11 may be formed depending on the application between 60 and 150 °. In the direction of movement 17 of the rotor or rotor 3 can thus almost no Lucaspar ⁇ particles bounce on the insulation of the coil winding head 16 and damage the insulation. The insulation is therefore protected, which extends the service life and the maintenance intervals of the draft-ventilated electrically excited synchronous machine 1.
- FIG 2 also shows an eight-pole rotor 3 with his
- These means 18 are in the production - formed of the protecting member 11 or the device 21 with PROTECTIONS ⁇ - eg a casting.
- PROTECTIONS ⁇ - eg a casting are produced by PROTECTIONS ⁇ - eg a casting.
- a curvature 23 is provided at the radially outer end of the protective elements 11, which essentially deflects a substantially radial air flow axially and thus leads away from the end face of the rotor 3.
- This configuration of the guard 11 that a radial air ⁇ stream collides with the particles therein to the stator coil 4 and leads to Abrasionsproblemen at the local isolation is avoided.
- the portion of the protective element 11 shielding the coil winding head 16 of the rotor 3 is formed with its arm 20 substantially as follows.
- the Schutzele ⁇ ment 11 regardless of whether it forms part of a protective device 21 with ring 10 or is individually positioned on the pole body 13 has three sections 25, 26, 27.
- Section 25 extends substantially parallel to the end face of the rotor 3 and has the means 18.
- Section 26 is characterized by a bend, to which, in particular in the radially outer region of the protective element 11, a section 27 connects, which extends substantially in the direction of the pole gap 28. The angle is created essentially by the bending of the section 26.
- Such abrasion protection 6 of a through-ventilated electrically excited synchronous machine with cup-shaped protective elements 11 is preferably suitable for one direction of rotation. This is particularly advantageous in generators driven by diesel engines, such as those described in US Pat. on locomotives, multiple units, mining trucks or ships.
- passage-ventilated electrically excited synchronous machines 1 for both directions of rotation e.g. two shells per coil winding head 16, each with approximately 90 ° provided, or it is a shell used as a protective element 11 with approximately 180 °, which thus has more a trough-shaped structure.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Synchronous Machinery (AREA)
- Motor Or Generator Cooling System (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP14194534.5A EP3024124A1 (de) | 2014-11-24 | 2014-11-24 | Durchzugsbelüftete elektrisch erregte Synchronmaschine |
| PCT/EP2015/076915 WO2016083199A1 (de) | 2014-11-24 | 2015-11-18 | Durchzugsbelüftete elektrisch erregte synchronmaschine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3207622A1 true EP3207622A1 (de) | 2017-08-23 |
Family
ID=51932283
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP14194534.5A Withdrawn EP3024124A1 (de) | 2014-11-24 | 2014-11-24 | Durchzugsbelüftete elektrisch erregte Synchronmaschine |
| EP15795193.0A Withdrawn EP3207622A1 (de) | 2014-11-24 | 2015-11-18 | Durchzugsbelüftete elektrisch erregte synchronmaschine |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP14194534.5A Withdrawn EP3024124A1 (de) | 2014-11-24 | 2014-11-24 | Durchzugsbelüftete elektrisch erregte Synchronmaschine |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20170264175A1 (de) |
| EP (2) | EP3024124A1 (de) |
| CN (1) | CN107112827A (de) |
| AU (1) | AU2015352820B2 (de) |
| CA (2) | CA2982953A1 (de) |
| CL (1) | CL2017001304A1 (de) |
| MX (1) | MX364670B (de) |
| WO (1) | WO2016083199A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019217464A1 (de) | 2019-11-12 | 2021-05-12 | Robert Bosch Gmbh | Komponente einer elektrischen Maschine |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2683233A (en) * | 1951-02-06 | 1954-07-06 | Gen Motors Corp | Rotor for dynamoelectric machines |
| DE3442348A1 (de) * | 1984-11-20 | 1986-05-22 | Ebm Elektrobau Mulfingen Gmbh & Co, 7119 Mulfingen | Aussenlaeufermotor |
| DE8625788U1 (de) * | 1986-09-26 | 1988-06-09 | Metabowerke GmbH & Co, 72622 Nürtingen | Anker für durchzugsbelüftete Elektromotoren |
| JPH07123618A (ja) * | 1993-10-22 | 1995-05-12 | Shibaura Eng Works Co Ltd | シリースモータ |
| GB9811457D0 (en) * | 1998-05-29 | 1998-07-29 | Johnson Electric Sa | Rotor |
| DE29821112U1 (de) * | 1998-11-25 | 1999-01-21 | Metabowerke GmbH & Co, 72622 Nürtingen | Anker mit Schutzkorb für durchzugsbelüftete Elektromotoren |
| US6831389B2 (en) * | 2001-07-11 | 2004-12-14 | Kabushiki Kaisha Moric | Stator coil structure for revolving-field electrical machine and method of manufacturing same |
| CN2904440Y (zh) * | 2005-12-26 | 2007-05-23 | 许晓华 | 定子线圈端部用的绝缘套盖 |
| CN101416371B (zh) * | 2006-04-06 | 2011-06-01 | 麦太保有限公司 | 用于强制通风冷却的电动机的电枢 |
| US8648518B2 (en) * | 2011-10-05 | 2014-02-11 | Rechi Precision Co., Ltd. | Compressor with snug perforated stator end-cover |
| US9130434B2 (en) * | 2012-02-01 | 2015-09-08 | Remy Technologies, Llc | Induction rotor end ring support device |
| KR20140003674A (ko) * | 2012-06-22 | 2014-01-10 | 엘지이노텍 주식회사 | 모터 |
| DE102013208538A1 (de) * | 2013-05-08 | 2014-11-13 | Lenze Drives Gmbh | Antriebssystem |
| JP5969525B2 (ja) * | 2014-02-25 | 2016-08-17 | ファナック株式会社 | 端絡環を備える回転子、および電動機 |
| KR101855763B1 (ko) * | 2016-06-03 | 2018-05-09 | 현대자동차 주식회사 | 계자권선형 구동모터 |
-
2014
- 2014-11-24 EP EP14194534.5A patent/EP3024124A1/de not_active Withdrawn
-
2015
- 2015-11-18 US US15/529,024 patent/US20170264175A1/en not_active Abandoned
- 2015-11-18 CN CN201580061519.3A patent/CN107112827A/zh active Pending
- 2015-11-18 EP EP15795193.0A patent/EP3207622A1/de not_active Withdrawn
- 2015-11-18 WO PCT/EP2015/076915 patent/WO2016083199A1/de not_active Ceased
- 2015-11-18 CA CA2982953A patent/CA2982953A1/en not_active Abandoned
- 2015-11-18 AU AU2015352820A patent/AU2015352820B2/en not_active Ceased
- 2015-11-18 CA CA2968433A patent/CA2968433A1/en not_active Withdrawn
- 2015-11-18 MX MX2017006705A patent/MX364670B/es active IP Right Grant
-
2017
- 2017-05-22 CL CL2017001304A patent/CL2017001304A1/es unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CL2017001304A1 (es) | 2017-12-15 |
| MX2017006705A (es) | 2017-10-18 |
| EP3024124A1 (de) | 2016-05-25 |
| CN107112827A (zh) | 2017-08-29 |
| AU2015352820A1 (en) | 2017-06-08 |
| CA2968433A1 (en) | 2016-06-02 |
| CA2982953A1 (en) | 2016-06-02 |
| US20170264175A1 (en) | 2017-09-14 |
| WO2016083199A1 (de) | 2016-06-02 |
| MX364670B (es) | 2019-05-03 |
| AU2015352820B2 (en) | 2018-07-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
|
| 17P | Request for examination filed |
Effective date: 20170518 |
|
| 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 |
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| AX | Request for extension of the european patent |
Extension state: BA ME |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SIEMENS AKTIENGESELLSCHAFT |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: GRUENTHALER, ANDREAS Inventor name: STAPFNER, JOHANN Inventor name: KOERNER, OLAF |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SIEMENS MOBILITY GMBH |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20200603 |