EP3281283A1 - Encased electric rotating machine - Google Patents
Encased electric rotating machineInfo
- Publication number
- EP3281283A1 EP3281283A1 EP16726089.2A EP16726089A EP3281283A1 EP 3281283 A1 EP3281283 A1 EP 3281283A1 EP 16726089 A EP16726089 A EP 16726089A EP 3281283 A1 EP3281283 A1 EP 3281283A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stator
- rotor
- electric rotating
- rotating machine
- windings
- 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- Withdrawn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
- 238000004804 winding Methods 0.000 claims abstract description 79
- 238000005538 encapsulation Methods 0.000 claims description 23
- 238000003475 lamination Methods 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 18
- 238000005299 abrasion Methods 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 238000005260 corrosion Methods 0.000 claims description 7
- 230000007797 corrosion Effects 0.000 claims description 7
- 239000002775 capsule Substances 0.000 claims description 5
- 239000000110 cooling liquid Substances 0.000 claims description 3
- 239000012809 cooling fluid Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 239000007789 gas Substances 0.000 description 24
- 239000007788 liquid Substances 0.000 description 18
- 238000001816 cooling Methods 0.000 description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 239000013535 sea water Substances 0.000 description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000003302 ferromagnetic material Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000004696 Poly ether ether ketone Substances 0.000 description 3
- 229920002530 polyetherether ketone Polymers 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 101100400378 Mus musculus Marveld2 gene Proteins 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000405147 Hermes Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/44—Protection against moisture or chemical attack; Windings specially adapted for operation in liquid or gas
-
- 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
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/128—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas using air-gap sleeves or air-gap discs
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/022—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with salient poles or claw-shaped poles
-
- 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
- H02K3/28—Layout of windings or of connections between windings
-
- 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
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
-
- 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
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
-
- 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
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/132—Submersible electric motors
Definitions
- the invention relates to an electric rotating machine comprising a rotor, a stator surrounding the rotor and an air gap located between the rotor and the stator. Furthermore, the invention relates to a compressor drive, a ship or a submarine, comprising at least one such encapsulated electric rotating machine.
- the invention further relates to a method for producing an encapsulated stator.
- Such an encapsulated electric rotating machine is used for example in a, preferably integrated, compressor drive, wherein the drive itself is in a gas atmosphere.
- the pumped gaseous ⁇ Me dium for example, natural gas may have aggressive substances which may the stator, particularly the stator windings, or the rotor, particularly the rotor windings attack.
- Stator for example, for cooling, is washed with seawater. Due to the salt contained in the seawater, the stator and / or the rotor can also be attacked.
- German patent document DE 10 2008 043386 Al a Ver is ⁇ drive for manufacturing a stator is known, wherein a Jochblechb and a stator star-laminated core-positively, for example by thermal shrinking, or positively opens through recess in Jochblechb for the ends of the stator teeth, each get connected.
- the invention has for its object to provide an electric rotating machine with encapsulated stator windings, which, in comparison to the prior art, has a high efficiency and a compact design.
- an electric rotating Maschi ⁇ ne comprising a rotor, a surrounding the rotor
- the air gap is adapted air, other gases to be so ⁇ as flows through liquids. Since the stator on the rotor zugwandten inner lateral surface in the region of Air gap is free of encapsulation and has no encapsulation on ⁇ .
- stator windings By encapsulating the stator windings are protected against all types of gases and liquids, which flow around the Ma ⁇ machine and are used for example for cooling and / or for processing. Since the stator is directly adjacent to the air gap, the air gap is optimally small. An ideal small air gap leads to optimal performance parameters, such as ideal power efficiency, the encapsulated electric rotating machine. Furthermore, it is possible due to the high efficiency to use a smaller ge ⁇ encapsulated electric rotating machine for a required performance, which saves space.
- the object is further achieved by a ship or submarine, which has at least one such electrical rotie ⁇ - generating machine.
- a ship or submarine which has at least one such electrical rotie ⁇ - generating machine.
- the object is achieved by a method for producing such an electric rotating machine.
- stator windings pass through the stator and have at the axial ends of the stator Statorwickelköpfe, wherein the Statorwickel ⁇ heads are encapsulated by a Statorwickelkopfkapselung. Due to the encapsulation the stator winding head is protected against any kind of gases and liquids, which flows around the machine and is used for example for cooling and / or for processing.
- the Statorwickelkopfkapselung is connected to the stator laterally at the axial ends of the stator. This is advantageous because of a deratige connection of the
- Statorwickelkopfkapselung with the stator in particular the size of the air gap is not affected and optimal performance parameters are achieved during operation of the electric rotating machine.
- stator windings in the region of the stator are protected from gases and liquids, for example, by the stator itself.
- the stator has a stator yoke and a stator laminated core surrounding the stator yoke, the stator windings passing through the stator yoke and the stator yoke being directly adjacent to the air gap. Since the stator yoke is directly adjacent to the air- ⁇ gap, the air gap is ideal small, which, for example, an ideal power efficiency of the submersible electric rotary machine leads to opti ⁇ paint performance parameters. It is also possible due to the high ef ⁇ ficiency to use a smaller sealed electrical Rotie ⁇ -saving machine for a required power, which saves space.
- Statorj och firmly connected to the stator lamination, wherein the stator windings in the region of the stator through the
- Stator laminated core are sealed.
- the firm connection of the stator yoke with the laminated stator core, the stator windings are ⁇ fluid-tight, i.e. sealed against penetration of gases and liquids, sealed. By such a ge sealing is needed in the area of the stator no additional capsule material.
- the stator lamination stack is preferably fixedly connected to the stator yoke with the aid of a frictional connection, in particular a shrinkage connection.
- a frictional connection in particular a shrinkage connection.
- a process shrink the laminated stator core beispielswei ⁇ se is heated to several hundred degrees centigrade preferred, whereby the inner diameter of the stator lamination expansion due to heat, which is also called thermal expansion is increased.
- the enlarged by the thermal expansion laminated stator core is placed in the heated state on the stator yoke ⁇ .
- a heat shrinkage which is also called thermal contraction
- instead of making the laminated stator core gets herein are subject ⁇ membered size again and both mechanically strong as is also electrically conductively connected to the stator yoke. This is particularly advantageous, since such a mechanically strong and electrically conductive connection is produced without additional process steps.
- this connec ⁇ tion is compact, very stable and almost independent of external influences.
- the Statorwickelkopf- encapsulation on an abrasion resistant material since the gas or liquid may also include particles that may cause abrasion of the stator wrap head encapsulation, it is advantageous if the stator wrap head encapsulation comprises an abrasion resistant material.
- the stator winding head encapsulation comprises a corrosion resistant material. This is particularly advantageous because the Statorwickelkopfkapselung and thus the Statorwickelkopf are protected from decomposition by, for example, aggressive gases or liquids by the korrosionsbe ⁇ permanent material. In a particularly advantageous manner, the encapsulated
- Statorwickelkopf kapselung with the Statorj och and / or connected to the stator lamination stack via a Statorsch spanaht.
- This welded connection is particularly advantageous because it is both electrically conductive and mechanically stable. Furthermore, it seals the space around the Statorwickelkopf very well.
- the rotor has rotor windings which run through the rotor and are encapsulated, wherein the rotor directly adjoins the air gap.
- very often excited-state synchronous machines are used, which preferably have a rotor with rotor windings. Due to the encapsulation, the rotor windings, just like the stator windings, are protected against any kind of gases and liquids which circulate around the machine and are used, for example, for cooling and / or for processing. Since the rotor is directly adjacent to the air gap, the air gap is optimally small, which leads to optimum performance parameters, for example, an ideal power efficiency. Furthermore, due to the favored by the small air gap high efficiency space can be saved.
- the rotor windings have a rotor winding head, wherein only the rotor winding heads are surrounded by a Rotorwickelkopfkapselung.
- a Rotorwickelkopfkapselung By encapsulation of the rotor winding head is protected against any kind of gases and liquids, which flows around the Ma ⁇ machine, in particular the rotor winding head.
- the Rotorwickelkopfkapselung is connected to the rotor only laterally at its axial ends.
- the rotor windings in the area of the rotor are protected against gases and liquids, for example, by the rotor itself.
- the Rotorwickelkopf- encapsulation on an abrasion-resistant and / or corrosion resistant material ⁇ is particularly advantageous because of the corrosion-resistant material, the Rotorwickelkopf- encapsulation and thus the rotor winding from degradation are protected by, for example, aggressive gases and viassigkei ⁇ th. Since the gas or the liquid can also comprise particles which can lead to abrasion of the Statorwickelkopfkapselung, it is advantageous if the Statorwickelkopfkapselung abrasion resistant mate rial comprises a ⁇ .
- the Rotorwickelkopfkapselung is connected to the rotor via a rotor weld.
- This ver ⁇ welded joint is particularly advantageous because it is so well ⁇ electrically conductive and mechanically stable. Furthermore, it seals the space around the rotor winding head very well.
- the encapsulated rotor windings are surrounded by a cooling fluid, in particular oil. This allows a very good cooling of the rotor windings, since the heat can be dissipated quickly and effectively.
- a first inner lateral surface of the laminated stator core is firmly connected to a second outer lateral surface of the stator yoke by means of a shrinking process.
- stator yoke is intended to be connected directly to an air gap with a second inner lateral surface. Since the Statorj och immediately adjacent to the air gap, the air gap is optimally small. An ideal small air gap leads to optimal performance parameters.
- FIG. 1 shows a longitudinal section of an encapsulated electrical
- FIG. 2 shows a longitudinal section of a first embodiment of an encapsulated electric rotating machine
- FIG. 5 shows the schematic sequence of a production method of an encapsulated stator
- FIG. 6 shows a longitudinal section of a ship with four encapsulated electric rotating machines
- FIG. 7 shows a side view of a submarine with a
- the electric rotating machine 10 has, in addition to the stator 1, a rotor 7 on which a shaft 8 is non-rotatably connected.
- the shaft rotates about a rotation axis 12 defining an axial direction, a radial direction, and a circumferential direction.
- stator 1 and rotor 7 are interconnected between stator 1 and rotor 7 .
- Stator 3 has a stator yoke 4, in which the stator windings 13 extend.
- the Stator yoke 4 is a construction of individual shaped sheets, which are layered, pressed and then welded together. Next ⁇ towards the stator yoke 4, which is made of a ferromagnetic material, for example iron or steel, may ⁇ genetically conductive.
- the stator windings 13 are preferably inserted into upwardly open slots of the stator yoke 4.
- the stator windings 13, which are preferably made of copper, have stator winding heads 2 at the axial ends of the stator yoke 4.
- a stator encapsulation 5 surrounds the entire stator 1 and hermetically seals the stator.
- the stator encapsulation 5 also passes through the air gap 6 between the stator 1 and the ro tor 7.
- the air gap 6 For a high power efficiency of the encapsulated electric rotating machine 10, the air gap 6 to keep mög ⁇ lichst small. An additional material between the stator and the rotor thus deteriorates the efficiency of the sealed electric rotating machine 10.
- FIG. 2 shows a longitudinal section of a first embodiment of an encapsulated electric rotating machine 1, wherein the structure of the electric rotating machine 1 corresponds to that of FIG.
- a stator encapsulation 5 which hermetically seals the entire stator 1 is dispensed with.
- the Statorwickelköpfe 2 of stator 11 are surrounded ⁇ wickelkopfkapselungen which comparable with Statorsch spanähten 9 at Statorj och 4 and the stator laminated core 3 are welded.
- stator windings 13 encapsulates hermetically with their overall Statorwickelköpfen 2, whereby they are protected against any kind of gases and flues ⁇ fluids, which flow around the encapsulated electric rotating machine 1.
- aself- to the natural gas aggressive substances may comprise, for example, may the stator 1, in particular the stator windings 13 attack.
- the stator 1 for example for better cooling
- the salt contained in the seawater can attack the stator windings 13.
- the air gap 6 is optimally small, since the stator 1 directly adjoins the air gap 6.
- An ideally small air gap 6 leads to optimum performance parameters of the encapsulated electric rotating machine 1. It is also possible due to the high efficiency, a smaller sealed electric rotating machine 1 Ma to be used for a requested power, which saves installation space.
- the encapsulated stator windings 13 with their stator winding heads 2 are surrounded by a cooling liquid, in particular oil.
- the stator winding head enclosure 11 comprises a corrosion resistant material that is chemically resistant to the gases and liquids that flow around the sealed electric rotating machine 1 and forms a chemical barrier between the flowing substances and the stator windings 13 with their stator winding heads 2. Furthermore, the Statorwickelkopfkapselung 11 an abrasionsbe dependss, preferably on the surface, which ver ⁇ prevents that in the liquids and gases, which flow around the encapsulated electric rotating machine 1, before ⁇ coming particles damage the Statorwickelkopfkapselung 11 by abrasion or abrasion.
- Abrasion-resistant materials include nickel or dense plastic Substances, for example polyetheretherketone, PEEK short, in question.
- the Statorwickelkopfkapselung 11 should continue to have good thermal conductivity, so that the heat loss from the Statorwickelköpfen 2 can be submitge ⁇ ben efficiently to a sealed electric rotating machine 1 flowing cooling medium.
- 3 shows a longitudinal section of a second embodiment of an encapsulated electric rotating machine 1, wherein the structure of the electric rotating machine 1 corresponds to that of FIG. 1 and FIG. Hermetically sealed to a stator encapsulation 5, wel ⁇ che the entire stator 1, but is also omitted.
- the Statorwickelköpfe 2 are surrounded by a Statorwickelkopfkapselung 11, which is welded by means of Statorsch spanähten 9 with the Statorj och 4 at the axial ends of the Statorjochs 4. Furthermore, the Statorwickelkopfkapselung 11, in contrast to the first embodiment of FIG 2, the stator lamination stack 3 of the stator 1 on the outer side of the stator 1 completely and thus sealed the stator lamination stack 3 also herme ⁇ table. 4 shows a longitudinal section of a third embodiment of an encapsulated electric rotating machine 1. The structure of the electric rotating machine 1 corresponds to that of FIG 1 to FIG 3. The stator-side encapsulation is analogous to FIG 2. Since it is the encapsulated electric rotating machine.
- FIG 4 is in a separately excited Syn ⁇ chronmaschine, also includes the rotor 7 Rotorwicklun ⁇ gen 14, which extend through the rotor. 7 The rotor windings 14 have at the axial ends of the rotor 7 Rotorwickelkmü.
- the rotor windings 14 are hermetically encapsulated by the rotor 7 surrounding the rotor windings 14 and by rotor winding head capsules 16.
- the rotor winding head capsules 16 are in this case welded to the rotor 7 at its axial ends via rotor welds 17 and thereby hermetically ver ⁇ seals. Due to the hermetic sealing, they are protected from jegli ⁇ che type of gases and liquids, which flow around the encapsulated electric rotating machine. 1
- integrated compressor drives in which the drive itself is in a gas atmosphere, can play have a corrosive nature to be conveyed gas substances in ⁇ that can rotor 7, in particular the rotor windings 14 attack.
- the salt contained in the Meerwas ⁇ ser can attack the rotor windings fourteenth Furthermore, the air gap 6 is optimally small, since the rotor 7 is directly adjacent to the air gap 6. An ideal small air gap 6 leads to optimum performance parameters of the encapsulated electric rotating machine 1.
- FIG. 5 shows the schematic sequence of a production method of an encapsulated stator 1.
- the stator lamination stack 3 is laminated from a plurality of individual laminations comprising a ferromagnetic material, for example iron or steel, pressed together and then welded together.
- the laminated stator core 3 has a first inner lateral surface 3a.
- the stator yoke 4 is in a further manufacturing step is also the form of several individual plates which are stacked, pressed and then welded together, made of a ferromagnetic material such as iron or steel, ge ⁇ manufactures and is magnetically conductive.
- the stator yoke 4 has a second inner lateral surface 4a and a second outer lateral surface 4b.
- stator windings 13 which are preferably made of copper, are inserted into the upwardly open slots of the stator yoke 4.
- the stator windings 13 used have stator winding heads 2 at the axial ends of the stator yoke 4.
- the finished stator lamination stack ⁇ 3 by means of a shrink process is firmly connected to the Statorj och. 4
- this shrinking process is the laminated stator core 3 by several hundred degrees Celsius he ⁇ hitzt, whereby the inner diameter of the stator lamination 3 due to thermal expansion, which is also known as thermal expansion increases.
- the enlarged by ther- mal expansion laminated stator core 3 is placed in it ⁇ overheated state such on the stator yoke 4, that the first inner circumferential surface 3a of the connecting stator lamination ⁇ package 3 with the second outer circumferential surface 4b of the stator yoke ⁇ . 4
- Upon cooling of the stator lamination 3 is a heat shrinkage, which is also called thermal Kon ⁇ traction instead whereby the laminated stator core 3 gets its previous size and again both mechanically strong as is also electrically conductively connected to the stator yoke. 4
- This is particularly advantageous because it produces a mechanically strong and electrically conductive connection without additional process steps.
- a Statorwickelkopfkapselung 11 is arranged on a Statorwickelkopf 2 and with the stator ⁇ yoke 4 and with the stator lamination 3 via Statorsch usually- seams 9 welded.
- the encapsulation may Statorwickelkopf- 11 are soldered or otherwise connected to achieve a hermetic seal of the stator windings 13 on the stator laminations 3, the stator yoke 4 and the stator ⁇ wickelkopfkapselung. 11 This is advantageous since the stator windings inserted into the stator yoke 13 of the stator 1 4 completely surrounded and thus protected from degradation by, for example, corrosive gases and liquid ⁇ speeds.
- the stator winding head capsule 11 comprises a corrosion resistant material which is chemically resistant to the gases and liquids that flow around the sealed electric rotating machine 1 and forms a chemical barrier between the flowing substances and the stator windings 13 with their stator winding heads 2. Furthermore, the 11 Statorwickelkopfkapselung an abrasion resistant material, preferably on the top ⁇ surface on which prevents the particles in the remplissigkei ⁇ th and gases which flow around the encapsulated electric rotating machine 1, the stator occurring damage winding head 11 by abrasion or abrasion. When abrasion-resistant materials are used, among other ⁇ rem nickel or dense plastics, for example Polyethe- retherketon short PEEK in question.
- FIG. 6 shows a longitudinal section of a ship 18 with an encapsulated electric rotating machine 10.
- the encapsulated electric rotating machine 10 as shown in one of Figures 1 to 4, carried out submersible and loading takes place completely under water 19. It will example ⁇ Salty seawater flows around, which is preferably used for cooling.
- the encapsulated electric rotating machine 10 used as a motor can be used directly or via a transmission as a ship propulsion.
- FIG. 7 shows a side view of a submarine 20 with exemplary four encapsulated electric rotating machines 10.
- the encapsulated electric rotating machines 10 are also submersible, as shown in one of FIGS. 1 to 4, and are at the rear of the submarine 20 by 90 ° ° offset in the circumferential direction angeord ⁇ net. Further arrangements with at least one electric rotating machine 10 on a submarine 20 are possible.
- the four encapsulated electric rotating machines 10 are completely under water 19 and are circulated for example by salty seawater, which is preferably used for cooling. In this case, the encapsulated electric rotating machines 10 used as motors can be used directly or via a gearbox as a ship propulsion system.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Motor Or Generator Cooling System (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15174959.5A EP3113334A1 (en) | 2015-07-02 | 2015-07-02 | Enclosed electric rotating machine |
PCT/EP2016/062224 WO2017001131A1 (en) | 2015-07-02 | 2016-05-31 | Encased electric rotating machine |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3281283A1 true EP3281283A1 (en) | 2018-02-14 |
Family
ID=53510723
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15174959.5A Withdrawn EP3113334A1 (en) | 2015-07-02 | 2015-07-02 | Enclosed electric rotating machine |
EP16726089.2A Withdrawn EP3281283A1 (en) | 2015-07-02 | 2016-05-31 | Encased electric rotating machine |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15174959.5A Withdrawn EP3113334A1 (en) | 2015-07-02 | 2015-07-02 | Enclosed electric rotating machine |
Country Status (5)
Country | Link |
---|---|
US (1) | US10680485B2 (en) |
EP (2) | EP3113334A1 (en) |
CN (1) | CN107810590B (en) |
RU (1) | RU2690019C1 (en) |
WO (1) | WO2017001131A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018113319B4 (en) * | 2018-06-05 | 2021-08-05 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Electric motor with liquid-cooled stator and air-cooled rotor |
US20230261550A1 (en) * | 2020-07-31 | 2023-08-17 | Mitsubishi Electric Corporation | Rotating electrical machine |
Family Cites Families (30)
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JPS5893442A (en) * | 1981-11-26 | 1983-06-03 | Hitachi Ltd | Stator for canned motor and manufacture thereof |
US4831297A (en) | 1988-02-16 | 1989-05-16 | Westinghouse Electric Corp. | Submersible electric propulsion motor with propeller integrated concentrically with motor rotor |
FR2650923B1 (en) | 1989-08-11 | 1995-05-24 | Salmson Pompes | ELECTRIC MOTOR STATOR AND ELECTRIC MOTOR COMPRISING SUCH A STATOR |
JPH04295257A (en) * | 1991-03-20 | 1992-10-20 | Hitachi Ltd | Coil end protective cap |
JP2001037134A (en) * | 1999-07-21 | 2001-02-09 | Matsushita Electric Ind Co Ltd | Induction motor |
US6069421A (en) * | 1999-08-30 | 2000-05-30 | Electric Boat Corporation | Electric motor having composite encapsulated stator and rotor |
US6759774B1 (en) * | 2001-03-08 | 2004-07-06 | Lawrence Pumps, Inc | Low speed canned motor |
JP2002315253A (en) * | 2001-04-16 | 2002-10-25 | Shinko Electric Co Ltd | Rotary machine |
JP2003143810A (en) * | 2001-11-02 | 2003-05-16 | Toyota Motor Corp | Segment coil motor |
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US20050074548A1 (en) * | 2003-10-03 | 2005-04-07 | Puterbaugh David K. | Method and apparatus for encapsulating electric motors used in washdown, food processing, and chemical applications |
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JP6175708B2 (en) | 2013-02-18 | 2017-08-09 | 日本電産テクノモータ株式会社 | motor |
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CN104348268B (en) * | 2013-08-09 | 2019-07-23 | 德昌电机(深圳)有限公司 | Brushless single phase motor |
-
2015
- 2015-07-02 EP EP15174959.5A patent/EP3113334A1/en not_active Withdrawn
-
2016
- 2016-05-31 WO PCT/EP2016/062224 patent/WO2017001131A1/en active Application Filing
- 2016-05-31 RU RU2017145567A patent/RU2690019C1/en active
- 2016-05-31 US US15/740,270 patent/US10680485B2/en active Active
- 2016-05-31 EP EP16726089.2A patent/EP3281283A1/en not_active Withdrawn
- 2016-05-31 CN CN201680036723.4A patent/CN107810590B/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN107810590B (en) | 2021-08-06 |
CN107810590A (en) | 2018-03-16 |
EP3113334A1 (en) | 2017-01-04 |
US20180183295A1 (en) | 2018-06-28 |
WO2017001131A1 (en) | 2017-01-05 |
US10680485B2 (en) | 2020-06-09 |
RU2690019C1 (en) | 2019-05-30 |
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