EP1726069A1 - Electric machine and slip ring element for an electric machine - Google Patents
Electric machine and slip ring element for an electric machineInfo
- Publication number
- EP1726069A1 EP1726069A1 EP05756964A EP05756964A EP1726069A1 EP 1726069 A1 EP1726069 A1 EP 1726069A1 EP 05756964 A EP05756964 A EP 05756964A EP 05756964 A EP05756964 A EP 05756964A EP 1726069 A1 EP1726069 A1 EP 1726069A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- slip ring
- slip
- connection
- rotor
- ring element
- 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.)
- Granted
Links
- 238000004804 winding Methods 0.000 claims abstract description 40
- 239000011810 insulating material Substances 0.000 claims abstract description 7
- 125000006850 spacer group Chemical group 0.000 claims description 34
- 239000004020 conductor Substances 0.000 claims description 9
- 238000013459 approach Methods 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 230000000284 resting effect Effects 0.000 claims 1
- 238000002604 ultrasonography Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000003466 welding Methods 0.000 description 7
- 238000005507 spraying Methods 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/14—Fastenings of commutators or slip-rings to shafts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/08—Slip-rings
Definitions
- insulating webs are formed on the carrier body of the slip ring element at its end facing the rotor bearing, which are passed in corresponding grooves of the rotor shaft under the adjacent rotor shaft bearing and in which Slip ring connections or associated terminal extensions run.
- the isolation webs for stiffening the structure are connected to each other at their ends remote from the slip ring element via an integrally molded with the carrier body of the slip ring element and the insulating webs insulation ring.
- the terminals or the terminal extensions often end in the region of the insulation ring, where a connection with the rotor winding takes place.
- the radial gap between the one slip ring and the radially inwardly extending from this terminal of the other slip ring is to form an insulating there, injected in the production of the carrier body with carrier body mass.
- the spacer has a slot-shaped opening extending over its axial length, or it is cut at least in the region of the radial gap between a slip ring and the terminal of the other slip ring.
- the present invention seeks to provide a cost-manufacturable and despite low radial outer dimensions of the slip rings particularly short-circuit protected slip ring element for an electric machine and an electric machine with such slip ring element. It would be particularly desirable if in the case of a compound of the rotor winding with the terminals of the slip ring element outside of the adjacent rotor bearing at the same time the assembly of the slip ring element on the prefabricated rotor and the contact of the slip rings with the rotor winding would be facilitated.
- the short-circuit safety is increased by the spacer ring extending at least partially into the radial gap between one slip ring and the terminal of the other slip ring and in this way a contact and already an impermissible proximity between the two parts mentioned in particular during the spraying of the carrier body, in which the molding material is injected at high speed into the mold, effectively prevented.
- the spacer ring is particularly preferably made of the same material as the rest of the carrier body of the slip ring element; this is in view of a good connection of the spacer ring with the sprayed carrier body and thus a high reliability and longevity favorable.
- this is not mandatory. Rather, the spacer may also consist of another suitable insulating material.
- the spacer ring has a central part and two sleeve-senförmigen approaches with reduced diameter, wherein the two abutment ring associated slip rings outside abut the sleeve-shaped projections. It is particularly advantageous if that sleeve-shaped projection, which extends at least partially into the radial gap between a slip ring and the terminal of the other slip ring in, in the region of the respective terminal has an axial extension. This results in an optimal effect of the spacer ring in terms of short-circuit safety, without the solid compound of the slip ring with the support body suffers.
- Another preferred embodiment of the invention is characterized in that that sleeve-shaped projection, which does not extend into the radial gap between a slip ring and the terminal of the other slip ring in, has a recess for the connection of this approach associated slip ring. Particularly preferably, that recess is followed by a pocket arranged on the radial inner side of the spacer ring for receiving it radially below the one slip ring passed through connection of the other slip ring.
- Such a bag supports the support and fixation of the relevant terminal during the spraying of the carrier body in both the radial and in the circumferential direction.
- Such recesses which may be implemented in particular radially outwardly immediately adjacent to the terminals of the slip rings, support the correct positioning of the ends of the rotor winding during assembly of the slip ring element; make it easier In this way, the assembly of the slip ring element and contribute to a particularly reliable electrical connection of the terminals of the slip rings with the rotor winding.
- stripped end portions of the rotor winding are mechanically clamped in the terminals of the slip rings.
- the connections of the slip rings are preferably initially V-shaped end, wherein the V-shaped ends of the terminals of the slip rings are particularly preferably opened radially outwardly.
- the compression can be effected by means of electrodes, so that at the same time as the mechanical deformation of the ends of the connections, a welding of the conductor of the rotor winding to the terminals by resistance welding.
- the present invention is not limited to such applications in which the rotor winding is passed under the rotor bearing adjacent to the slip ring member.
- the above explained Special advantages of the invention will become apparent even if insulating webs are formed on the carrier body of the slip ring element, which passed under the adjacent rotor bearing and in which the emerging from the carrier body of the slip ring element terminals or associated terminal extensions are added.
- Such a design in which the rotor winding is connected within the relevant rotor bearing with the terminals of the slip ring element or associated terminal extensions, has the advantage that the connections of the rotor winding with the terminals of the slip ring element close to the coils of the rotor winding and substantially on the diameter thereof can.
- terminals or terminal extensions with the exception of their ends can be completely encapsulated with the molding compound from which the carrier body of the slip ring element and the insulating webs formed thereon are made. This reduces the problem of voltage breakdowns and leakage currents in alternator operation in the area of additional supports of the terminal extensions existing in known slip ring elements with a similar construction.
- the present invention As far as the present invention is described above with reference to slip ring elements with (only) two slip rings, no pertinent restriction can be found. Rather, the present invention equally includes electric machines whose slip ring elements have more than two slip rings. Moreover, the above-explained advantages of the present invention can be seen in the same way also in such electrical machines use, in which the slip ring element is disposed within the two rotor bearings. In the following, the present invention will be explained in more detail with reference to two illustrated in the drawing preferred embodiments. It shows
- FIG. 1 shows an axial section through the end portion of the rotor of a first embodiment of an electric machine according to the invention with not yet finally completed connection of the rotor winding with the slip rings
- a prefabricated spacer ring 21 is embedded, which bridges the axial gap 22 between the two slip rings 10 and 11.
- the spacer ring 21 is executed stepped, so that it not only the front side of the two slip rings 10 and 11 is present, but also partially at the radially inner peripheral surface.
- the spacer ring 21 extends in particular partially into the radial gap 23 between the bearing slip ring 10 and the terminal 13 of the bearing remote slip ring 11 inside.
- the isolation webs 36 and 37 are connected to each other via an insulating ring 38 molded integrally with the carrier body 8 'of the slip ring element 7' and the insulation webs.
- the terminal extensions 26 and 27 terminate in the region of the insulating ring 38 with free terminal lugs 39, at which a connection with the rotor winding 5 'takes place.
- spacer ring 21 ' has a central portion 28 and two sleeve-shaped projections 29 and 30 with a reduced diameter.
- Each of the two slip rings 10 'and 11' lies on the outside of one of the sleeve rings. shaped approaches.
- the sleeve-shaped projection 29 which extends into the radial gap 23 'between the slip ring 10' shown on the left and the connection portion 25 of the slip ring 11 'shown on the right, has in the region of the respective terminal portion 25 and this diametrically opposite to each axial extension 31.
- the axial extension 31 is dimensioned so that the radial gap 23 'between the slip ring 10' and the connecting portion 25 to about 75% of the axial height of the slip ring 10 'with the spacer ring 21' is filled.
Landscapes
- Motor Or Generator Current Collectors (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Synchronous Machinery (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Control Of Electric Motors In General (AREA)
- Forging (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SI200530258T SI1726069T1 (en) | 2004-06-16 | 2005-06-14 | Electric machine and slip ring element for an electric machine |
PL05756964T PL1726069T3 (en) | 2004-06-16 | 2005-06-14 | Electric machine and slip ring element for an electric machine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004028781A DE102004028781A1 (en) | 2004-06-16 | 2004-06-16 | Electric machine |
PCT/EP2005/006335 WO2005124945A1 (en) | 2004-06-16 | 2005-06-14 | Electric machine and slip ring element for an electric machine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1726069A1 true EP1726069A1 (en) | 2006-11-29 |
EP1726069B1 EP1726069B1 (en) | 2008-03-05 |
Family
ID=34971684
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05756964A Not-in-force EP1726069B1 (en) | 2004-06-16 | 2005-06-14 | Electric machine and slip ring element for an electric machine |
Country Status (11)
Country | Link |
---|---|
US (1) | US20070257577A1 (en) |
EP (1) | EP1726069B1 (en) |
AT (1) | ATE388509T1 (en) |
DE (2) | DE102004028781A1 (en) |
DK (1) | DK1726069T3 (en) |
ES (1) | ES2302206T3 (en) |
MX (1) | MXPA06014136A (en) |
PL (1) | PL1726069T3 (en) |
SI (1) | SI1726069T1 (en) |
TW (1) | TWI407664B (en) |
WO (1) | WO2005124945A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2928042A1 (en) * | 2008-02-26 | 2009-08-28 | Valeo Equip Electr Moteur | Electrical collector for alternator of motor vehicle, has insert including positioning portion extended over only part of circumference of space separating rings, and spacing portion extended axially between one ring and connection element |
FR2928044A1 (en) * | 2008-02-26 | 2009-08-28 | Valeo Equip Electr Moteur | Electrical collector for alternator of motor vehicle, has electrically insulating insert that includes positioning portion extended in annular axial space, and assures space between one of collector rings and electrical connection element |
WO2009106775A2 (en) * | 2008-02-26 | 2009-09-03 | Valeo Equipements Electriques Moteur | Electrical collector, particularly for alternator |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4627712B2 (en) * | 2005-10-07 | 2011-02-09 | 株式会社日立製作所 | Rotating electric machine and manufacturing method thereof |
DE602008002264D1 (en) * | 2007-02-09 | 2010-10-07 | Goodrich Corp | Aircraft propeller arrangement with electric power transmission |
US20090240146A1 (en) * | 2007-10-26 | 2009-09-24 | Liposonix, Inc. | Mechanical arm |
FR2930382B1 (en) * | 2008-04-16 | 2012-04-20 | Valeo Equip Electr Moteur | ELECTRICAL COLLECTOR, IN PARTICULAR FOR ALTERNATOR. |
US8558429B2 (en) | 2011-01-05 | 2013-10-15 | General Electric Company | Systems, methods, and apparatus for lifting brushes of an induction motor |
US8674581B2 (en) | 2011-01-05 | 2014-03-18 | General Electric Company | Systems, methods, and apparatus for shorting slip rings of an induction motor |
DE102011105759A1 (en) * | 2011-06-24 | 2012-12-27 | Kolektor Group D.O.O. | Dynamoelectric machine |
CN104040848B (en) | 2012-02-09 | 2017-02-15 | 三菱电机株式会社 | Slip ring device for dynamo-electric machine |
CN102931771A (en) * | 2012-11-15 | 2013-02-13 | 中电电机股份有限公司 | Slip ring and lead fixing structure for inverted dynamic braking wound rotor motor |
JP5840258B2 (en) * | 2014-05-14 | 2016-01-06 | 三菱電機株式会社 | Rotating electrical machine slip ring device |
JP6250159B2 (en) * | 2014-06-18 | 2017-12-20 | 三菱電機株式会社 | Alternator slip ring device |
JP6352788B2 (en) * | 2014-12-03 | 2018-07-04 | 株式会社東芝 | Rotating electrical machine rotor |
CN104589214A (en) * | 2015-02-06 | 2015-05-06 | 苏州富强科技有限公司 | Slide ring for polishing machine |
EP3082202A1 (en) * | 2015-04-17 | 2016-10-19 | Siemens Aktiengesellschaft | Slip ring body comprising a rotor for an electrically excited rotational dynamo-electric machine |
WO2017083942A1 (en) * | 2015-11-17 | 2017-05-26 | Weg Equipamentos Elétricos S/A | Insulation system for brush-bearing rings of three-phase induction motors having a slip ring rotor, and corresponding brush-bearing ring |
US10957445B2 (en) | 2017-10-05 | 2021-03-23 | Hill-Rom Services, Inc. | Caregiver and staff information system |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2322011A (en) * | 1942-05-27 | 1943-06-15 | Gen Electric | Slip ring assembly |
US3091714A (en) * | 1960-06-08 | 1963-05-28 | Electric Machinery And Mfg Com | Collector ring assembly with field winding discharge air gap |
US3508097A (en) * | 1966-12-30 | 1970-04-21 | Caterpillar Tractor Co | Lead retaining slip ring assembly |
JPS51124409U (en) * | 1975-04-04 | 1976-10-08 | ||
US4209213A (en) * | 1978-04-10 | 1980-06-24 | Warner Electric Brake & Clutch Company | Brush holder and slip ring assembly |
DE2833129A1 (en) * | 1978-07-28 | 1980-02-07 | Stemmann Ohg A | Slip-ring unit for electric machines - uses slip-rings which are insulated by spacing rings and held together on inner support by central bolt |
DE3326700A1 (en) * | 1983-07-23 | 1985-01-31 | Robert Bosch Gmbh, 7000 Stuttgart | Slipring device for electrical machines |
JPS60200745A (en) * | 1984-03-23 | 1985-10-11 | Hitachi Ltd | Rotor for ac generator |
US4645962A (en) * | 1984-09-28 | 1987-02-24 | Rol Industries Inc. | Slip ring assembly and method of making |
US4684179A (en) * | 1986-01-22 | 1987-08-04 | Freeman Jerry H | Slip ring assembly for method of making same |
US5274292A (en) * | 1991-09-04 | 1993-12-28 | Onan Corporation | Collector ring assembly and method |
FR2710200B1 (en) * | 1993-09-16 | 1995-12-08 | Valeo Equip Electr Moteur | Attached manifold for alternator including motor vehicle. |
FR2710199B1 (en) * | 1993-09-16 | 1995-12-08 | Valeo Equip Electr Moteur | Attached manifold for alternator including motor vehicle. |
FR2710197B1 (en) * | 1993-09-16 | 1995-12-08 | Valeo Equip Electr Moteur | Attached manifold for alternator including motor vehicle. |
FR2710464A1 (en) * | 1993-09-22 | 1995-03-31 | Vaurs Robert Pierre Louis | Commutator having slip (smooth) rings with a multipart core and its method of manufacture |
DE9314985U1 (en) * | 1993-10-02 | 1995-02-02 | Robert Bosch Gmbh, 70469 Stuttgart | Runner for electrical machines with fans |
US5886451A (en) * | 1997-10-30 | 1999-03-23 | Ford Motor Company | Wire routing design for a rotor of an electrical machine |
US6437475B1 (en) * | 2000-11-28 | 2002-08-20 | Delphi Technologies, Inc. | Rotor slip ring and method of coil to slip ring termination |
JP3812456B2 (en) * | 2002-02-15 | 2006-08-23 | 株式会社デンソー | Slip ring device for vehicle alternator |
US20040119369A1 (en) * | 2002-12-18 | 2004-06-24 | Radtke David E. | Collector ring assembly for rotor shaft of electrical machine |
-
2004
- 2004-06-16 DE DE102004028781A patent/DE102004028781A1/en not_active Withdrawn
-
2005
- 2005-06-14 AT AT05756964T patent/ATE388509T1/en not_active IP Right Cessation
- 2005-06-14 WO PCT/EP2005/006335 patent/WO2005124945A1/en active IP Right Grant
- 2005-06-14 EP EP05756964A patent/EP1726069B1/en not_active Not-in-force
- 2005-06-14 SI SI200530258T patent/SI1726069T1/en unknown
- 2005-06-14 ES ES05756964T patent/ES2302206T3/en active Active
- 2005-06-14 PL PL05756964T patent/PL1726069T3/en unknown
- 2005-06-14 DK DK05756964T patent/DK1726069T3/en active
- 2005-06-14 MX MXPA06014136A patent/MXPA06014136A/en active IP Right Grant
- 2005-06-14 US US11/628,896 patent/US20070257577A1/en not_active Abandoned
- 2005-06-14 DE DE502005003095T patent/DE502005003095D1/en active Active
- 2005-06-15 TW TW094119766A patent/TWI407664B/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO2005124945A1 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2928042A1 (en) * | 2008-02-26 | 2009-08-28 | Valeo Equip Electr Moteur | Electrical collector for alternator of motor vehicle, has insert including positioning portion extended over only part of circumference of space separating rings, and spacing portion extended axially between one ring and connection element |
FR2928044A1 (en) * | 2008-02-26 | 2009-08-28 | Valeo Equip Electr Moteur | Electrical collector for alternator of motor vehicle, has electrically insulating insert that includes positioning portion extended in annular axial space, and assures space between one of collector rings and electrical connection element |
WO2009106775A2 (en) * | 2008-02-26 | 2009-09-03 | Valeo Equipements Electriques Moteur | Electrical collector, particularly for alternator |
WO2009106775A3 (en) * | 2008-02-26 | 2009-10-22 | Valeo Equipements Electriques Moteur | Electrical collector, particularly for alternator |
Also Published As
Publication number | Publication date |
---|---|
ATE388509T1 (en) | 2008-03-15 |
TWI407664B (en) | 2013-09-01 |
MXPA06014136A (en) | 2007-04-25 |
US20070257577A1 (en) | 2007-11-08 |
DE102004028781A1 (en) | 2006-01-12 |
SI1726069T1 (en) | 2008-08-31 |
PL1726069T3 (en) | 2008-08-29 |
TW200618444A (en) | 2006-06-01 |
ES2302206T3 (en) | 2008-07-01 |
DE502005003095D1 (en) | 2008-04-17 |
EP1726069B1 (en) | 2008-03-05 |
DK1726069T3 (en) | 2008-06-30 |
WO2005124945A1 (en) | 2005-12-29 |
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