EP4014305A1 - Elektrische maschine mit ringförmigem wärmeübertrager - Google Patents
Elektrische maschine mit ringförmigem wärmeübertragerInfo
- Publication number
- EP4014305A1 EP4014305A1 EP20735564.5A EP20735564A EP4014305A1 EP 4014305 A1 EP4014305 A1 EP 4014305A1 EP 20735564 A EP20735564 A EP 20735564A EP 4014305 A1 EP4014305 A1 EP 4014305A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- channel
- cooling
- ring
- coolant
- heat exchanger
- 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- Withdrawn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
- 238000001816 cooling Methods 0.000 claims abstract description 202
- 239000002826 coolant Substances 0.000 claims abstract description 62
- 238000004804 winding Methods 0.000 claims abstract description 16
- 238000007599 discharging Methods 0.000 claims description 5
- 230000007423 decrease Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 101150107341 RERE gene Proteins 0.000 claims 1
- 230000000694 effects Effects 0.000 description 5
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
- H02K11/33—Drive circuits, e.g. power electronics
-
- 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
- H02K9/197—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator
Definitions
- the present invention relates to an annular heat exchanger, which is particularly suitable for an axially end-face arrangement on an electrical machine, such as an electric motor and / or a generator.
- the present invention also relates to an electrical machine, such as an electric motor and / or a generator, according to the preamble of claim 11.
- a generic electrical machine is known from US 2014/0265743 A1, for example.
- Such an electrical machine comprises a rotor, a stator, a coil which has a plurality of windings, and a plurality of electrical and / or electronic power modules, which are each electrically connected to a winding.
- An axial direction of the machine runs parallel to the axis of rotation of the rotor.
- the power modules are used to supply current or voltage to the windings in order to ultimately control the speed or power of the machine. This creates heat in these power modules that has to be dissipated to avoid overheating of the power modules and to increase the service life or service life of the power modules. Active cooling of the power modules is recommended for this.
- the active cooling of the power modules is implemented in that a cup-shaped housing of the machine is double-walled, such that an annular bottom on an axial end of the machine between a housing inner bottom and a housing outer bottom Cooling channel is formed through which ademit tel can flow.
- a supply connection for supplying the coolant and a discharge connection for discharging the cooling medium are attached to the housing outer base, which have an inlet area and an outlet area, respectively of the cooling channel are fluidically connected.
- the power modules are arranged axially on the machine on an outer side of the outer housing bottom facing away from the rotor, that is, in the area of the cooling channel, whereby the heat from the power modules can be dissipated.
- the present invention is concerned with the problem of showing an improved or at least a different way for an electrical machine of the type described above for efficient cooling of the power modules, which is characterized in particular by ease of implementation.
- the aim is to improve the cooling of the individual power modules.
- the invention is based on the general idea of providing an annular heat exchanger for cooling the power modules of such an electrical machine, which can be arranged on a frontal axial end of the machine.
- a heat exchanger can basically be manufactured independently of the electrical machine and to that extent represents a separate component.
- the heat exchanger can be attached to a housing of the machine, for example. It is also conceivable that the heat exchanger is used, as it were, as a front axial end of the housing, for example to close off the housing axially.
- the heat exchanger points all for that Components required for cooling, such as a supply connection for supplying the coolant, a discharge connection for discharging thedemit means and at least one cooling channel.
- the heat exchanger comprises a cooling channel ring which has an axial lower side and an axial upper side.
- a connection plate is also provided, which is arranged on the underside of the cooling channel ring. This creates a multi-layer structure for the heat exchanger, which simplifies the assembly and thus the production.
- the heat exchanger can optionally have a mounting ring which can be arranged on the top of the cooling channel ring.
- the annular heat exchanger then has a three-layer structure in the axial direction, the cooling channel ring then being arranged between the mounting ring and the connection plate.
- the cooling channel ring has on its underside a circumferentially extending, axially open inlet channel for guiding the coolant and a separate, circumferentially extending, axially open drain channel for guiding the coolant.
- the inlet channel and outlet channel are fluidically separated from one another on the underside of the cooling channel, so that no coolant can flow directly from the inlet channel into the outlet channel on the underside.
- the substrateka channel ring On its upper side, has a plurality of axially open cooling structures which are adjacent in the circumferential direction and through which the coolant can flow.
- the cooling channel ring has an inlet opening for each cooling structure, which fluidly connects the inlet channel through the cooling channel ring to the respective cooling structure, and an outlet opening which fluidly connects the outlet channel through the cooling channel ring to the respective cooling structure.
- these Cooling structures on the upper side of the cooling channel are fluidically separated from one another, so that on the upper side no coolant can flow directly from one cooling structure to another cooling structure. Consequently, the individual cooling structures are connected fluidically in parallel via the common inlet channel and the common outlet channel and the coolant flows through them separately. This enables efficient cooling to be implemented on the individual cooling structures. For example, power modules or other components of the machine to be cooled can be arranged on the mounting ring in the area of such a cooling structure, whereby the power modules or components are particularly efficiently cooled via the cooling structures.
- cooling structures formed on the upper side are separated by the material of the cooling channel ring from the inlet channel formed on the lower side and the outlet channel formed on the lower side and are fluidically connected to these only via the inlet openings and outlet openings which penetrate the material of the cooling channel ring is.
- connection plate is arranged on the underside of the cooling channel ring in such a way that it axially covers the inlet channel and the outlet channel. This simplifies the production of the cooling channel ring.
- a supply connection for supplying the coolant to the inlet channel and / or a discharge connection for discharging the coolant from the outlet channel can in principle be formed on the cooling channel ring.
- the feed connection and / or the discharge connection are formed on the connection plate.
- the supply connection is preferably attached to the connection plate in such a way that it is fluidically connected to the supply channel, while the discharge connection is arranged on the connection plate in such a way that it is fluidically connected to the discharge channel.
- the order of the supply connection and / or the discharge connection on the connection plate can take place in such a way that the supply channel is fluidically connected to the supply connection through the connection plate or that the discharge channel is fluidically connected to the discharge connection through the connection plate.
- the supply connection and / or the discharge connection can be arranged on an outer side of the connection plate facing away from the cooling channel ring and protrude axially there, for example.
- the coolant is thus supplied and discharged at the connection plate, distributed on the underside of the cooling channel ring via the inlet channel and the outlet channel to the individual cooling structures located on the upper side of the cooling channel ring in order to provide several cooling areas distributed in the circumferential direction that can be used, for example, to mount components of the electrical machine to be cooled, e.g. power modules. If the above-mentioned assembly is not present, these cooling areas are formed on the mounting ring and the components to be cooled can be attached to the mounting ring.
- the coolant can be supplied to the individual cooling structures at essentially the same temperature level, which homogenizes the cooling effect of the individual cooling structures.
- the inlet channel and the outlet channel can be arranged radially adjacent to one another in a circumferential region of the cooling channel ring.
- the inlet channel and the outlet channel overlap in the circumferential direction. This simplifies the supply and discharge of the coolant to the individual cooling structures.
- An embodiment is particularly advantageous in which the inlet channel and the outlet channel each extend in the circumferential direction over more than 180 ° or over more than 270 ° or over more than 330 °.
- the supply connection and discharge connection can be arranged close to one another in the circumferential direction, so that the supply channel and discharge channel extend over the entire circumference of the cooling channel ring, apart from a small circumferential area in which the supply connection and the discharge connection are located.
- the feed connection and discharge connection are arranged in the same circumferential area, radially spaced from one another.
- the feed channel and discharge channel can each essentially extend over 360 °.
- This design also makes it possible to provide the separate cooling structures distributed along the entire extent of the cooling channel ring in the circumferential direction.
- the inlet channel and the outlet channel each have a channel cross section measured transversely to the circumferential direction, the channel cross section of the inlet channel decreasing in the circumferential direction starting from the feed connection, while the channel cross section of the discharge channel decreasing in the peripheral direction starting from the discharge connection.
- the flow-through channel cross-section of the inlet channel is the smallest, while there the flow-through channel cross-section of the outlet channel is the largest.
- at least one such cooling structure has a recess through which the coolant can flow and which is fluidically connected to the respective inlet opening in an inlet area and to the respective outlet opening in an outlet area spaced apart from the inlet area. This ensures that the respective recess from the inlet area to the outlet area is flowed through by the coolant in order to effect the desired heat absorption.
- a plurality of axially protruding elevations are formed at least in such a recess, which are arranged between the respective inlet opening and the respective outlet opening and around which the coolant can flow. These elevations increase the surface area in contact with the coolant within the depression, which significantly increases the cooling effect.
- these elevations can be dimensioned so that they rest axially on the respective component to be cooled, e.g. on a power module which, when the heat exchanger is mounted on the machine, is mounted on the heat exchanger in the area of the respective cooling structure, e.g. on the cooling channel ring or on the optional Mounting ring. In this way, particularly efficient direct cooling of the respective component is achieved. If the optional mounting ring is provided, the elevations can also be dimensioned in such a way that they rest axially on the mounting ring, which considerably improves the cooling effect on the mounting ring in the area of the respective cooling structure.
- the elevations rest axially through an opening in the mounting ring against the component to be cooled, for example the power module, which is mounted on or in the mounting ring in the area of the cooling structure.
- the direct cooling of the power module can be significantly improved.
- the upper side of the cooling channel ring is designed for the assembly of components of the machine to be cooled, in particular the power modules, so that these components can be fastened directly to the cooling channel ring.
- the components mounted on the cooling channel ring then cover the respective cooling structure. This results in a particularly simple and cost-effective structure for the heat exchanger.
- a mounting ring is arranged on the upper side of the cooling channel ring, which is designed in the area of the respective cooling structure on an outside facing away from the cooling channel ring for mounting a component to be cooled, in particular a power module.
- These axially open cooling structures can now be covered by the mounting ring, whereby a cooling area is formed in each case on an outside of the mounting ring facing away from the cooling channel ring in the area of the cooling structures, these cooling areas being particularly suitable for mounting components to be cooled, e.g. power modules, suitable. It is also conceivable to design the mounting ring in such a way that an opening in the mounting ring is provided in the area of at least one of the cooling structures, which opening is closed by the mounting of a power module, in such a way that an underside of the respective power module facing the respective cooling structure is now Covering cooling structure and can thereby be flowed directly onto the coolant.
- the volume through which the coolant can flow can be increased considerably, which can be used for improved cooling.
- at least one such cooling structure is designed as a cooling channel through which the coolant can flow and which guides the coolant from the respective inlet opening to the respective outlet opening. This measure can also lead to efficient cooling.
- the respective cooling channel can expediently lead in a meandering shape from the respective inlet opening to the respective outlet opening. This increases the length of the cooling channel, which improves the cooling effect of this cooling structure.
- the mounting ring is closed in the area of at least one such cooling structure and axially covers the respective cooling structure.
- a cooling area is created in the area of the respective cooling structure on the mounting ring, which is suitable, for example, for mounting a power module.
- the mounting ring can have an opening in the region of at least one such cooling structure which axially penetrates the mounting ring and which is axially open to the respective cooling structure.
- a component of the machine to be cooled in particular a power module, can be mounted on the mounting ring in such a way that on the one hand the opening is closed and on the other hand direct contact between this component and the coolant is possible. This enables particularly efficient cooling to be achieved.
- An electrical machine which can in particular be an electric motor and / or a generator, comprises a rotor, a stator, a coil which has several windings, and several electrical and / or electronic power modules, each with a Wick treatment are electrically connected with an axial direction of the machine parallel runs to the axis of rotation of the rotor.
- the machine according to the invention is now characterized in that a heat exchanger of the type described above is arranged axially on the machine. Since the heat exchanger with the cooling channel ring, with the connection plate and optionally with the optional mounting ring can be configured separately with respect to the rest of the machine, the adaptation of the heat exchanger to the machine and vice versa is simplified.
- the power modules can be arranged on the cooling channel ring or on or in the mounting ring on an outside of the mounting ring facing away from the cooling channel ring, in such a way that they are spaced from one another in the circumferential direction and are each arranged in the region of a cooling structure. This enables particularly efficient cooling of the power modules to be achieved.
- At least one such cooling structure has a recess through which the coolant can flow and which is fluidically connected to the inlet opening in an inlet area and to the respective outlet opening in an outlet area spaced from the inlet area.
- the mounting ring can now have an opening in the region of at least one such cooling structure which axially penetrates the mounting ring and which is axially open to the respective cooling structure.
- At least one of the power modules can now be arranged on the mounting ring in such a way that the respective power module covers the respective opening and the one underside of the respective power module assigned to the connection plate can be flown against by the coolant. This realizes particularly efficient cooling of the respective power module, since it can transfer the heat directly to the coolant.
- At least one of the power modules has a heat exchanger structure on its underside facing the connection plate, which protrudes through the respective opening of the assembly into the respective cooling structure and can be directly flowed around by the coolant.
- the heat exchanger structure formed on the underside of the respective power module increases the surface of the power module that can be contacted with the coolant there. As a result, the heat output to the coolant can be significantly improved.
- each power module is electrically connected to the respective winding via a connecting line.
- the connection plate according to the advantageous embodiment radially inwardly offset to the cooling channel ring either a common through opening for all connecting lines or several common through openings for several connecting lines or for each connec tion line have a separate opening through which the respective Connecting line extends axially therethrough.
- the connection plate and thus the heat exchanger can be used to axially close the machine, so that, for example, an axially frontal housing bottom in the area of the heat exchanger can be dispensed with.
- Fig. 1 is a greatly simplified, circuit diagram-like longitudinal section of an electrical machine's rule, which has a heat exchanger at one axial end,
- Fig. 2 is an isometric view of the machine in the area with the
- Fig. 3 is an axially exploded, transparent representation of the
- Fig. 6 is an exploded, transparent view of the heat exchanger from below in the area of connections on a connection plate of the heat exchanger
- 7 is an enlarged isometric view of a cooling structure on the
- Fig. 8 is a view as in Fig. 7, but in a different embodiment,
- FIGS. 7 and 8 are views as in FIGS. 7 and 8, but in a further embodiment,
- FIG. 10 is a greatly simplified sectional view of the heat exchanger in FIG.
- an electrical machine 1 which can preferably be an electric motor or a generator or a motor-generator, comprises a rotor 2 and a stator 3 in which the rotor 2 is arranged to be rotatable about an axis of rotation 4 is. Furthermore, the machine 1 has a coil 5, which has several windings 6, not shown in detail. The coil 5 can be arranged with its windings 6 on the rotor side or stator side, depending on the type of machine 1. To supply power to the windings 6, the machine 1 is also equipped with several electrical and / or electronic power modules 7, each suitably with one Winding 6 are electrically connected.
- the rotor 2 can expediently have a rotor shaft 8 which protrudes from the machine 1 at one axial end of the machine 1 and can be used for torque transmission.
- An axial direction 9 of the machine 1 is defined by the axis of rotation 4 and extends parallel to the axis of rotation 4.
- the machine 1 shown here is also equipped with a heat exchanger 10 which is arranged at one axial end of the machine 1 and which is used here to cool the power modules 7.
- the power modules 7 are expediently attached to the heat exchanger 10.
- the heat exchanger 10 is designed to be annular and has a cooling channel ring 11 which has an axial bottom 12 and an axial top 13.
- the heat exchanger 10 comprises a connection plate 14 which is arranged on the underside 12 of the cooling channel ring 11.
- a mounting ring 15 is also provided, which is used here to mount the power modules 7, but which can be omitted in another embodiment in which the power modules 7 are mounted directly on the cooling channel ring 11.
- this mounting ring 15 is present.
- the cooling channel ring 11 has on its underside 12 an axially open inlet channel 17 extending in the circumferential direction 16 for guiding a coolant.
- the cooling channel ring 11 has on its underside an axially open outlet channel 18, which is separate from the inlet channel 17 and extends in the circumferential direction 16, for guiding the coolant.
- Inlet channel 17 and outlet channel 18 each extend in the circumferential direction 16 over more than 180 °, whereby a circumferential area 19 is formed on the cooling channel ring 11, in which the inlet channel 17 and outlet channel 18 overlap in the circumferential direction 16 and are arranged radially adjacent to one another.
- the inlet channel 17 and the outlet channel 18 each extend over more than 330 °, but over less than 360 °.
- the inlet channel 17 has a channel cross section 20 measured transversely to the circumferential direction 16, through which the coolant can flow and which can also be referred to below as the inlet channel cross section 20.
- the drainage channel 18 also has a channel cross section 21 measured transversely to the circumferential direction 16, through which the coolant can flow and which can also be referred to below as the drain channel cross section 21. It can be seen that the channel cross-sections 20, 21 are not constant in the circumferential direction 16.
- the inlet channel cross section 20 decreases in the circumferential direction 16 starting from a feed connection 22 for feeding the coolant to the inlet channel 17.
- the drainage channel cross-section 21 decreases in the circumferential direction 16 starting from a lead connection 23 for discharging the coolant from the drainage channel 18.
- the sum of the channel cross-sections 20, 21 of the inlet channel 17 and the outlet channel 18 is essentially constant in the circumferential direction 16, apart from a circumferential section 24 of the cooling channel ring 11 in which the inlet channel 17 connects to the inlet connection 22 is connected and the drain channel 18 is connected to the drain port 23.
- the cooling channel ring 11 has on its upper side 13 several axially open cooling structures 25 which are adjacent in the circumferential direction 16 and through which coolant can flow. Furthermore, the cooling channel ring 11 contains an inlet opening 26 for each cooling structure 25, which fluidly connects the inlet channel 17 through the cooling channel ring 11 to the respective cooling structure 25.
- the inlet channel 17 is arranged on the underside 12 of the cooling channel ring 11 radially on the outside, while the run-off channel 18 is arranged adjacent to it radially inward. Accordingly, the inlet openings 26 are located radially further outward on the cooling channel ring 11.
- cooling channel ring 11 is equipped for each cooling structure 25 with an outlet opening 27 which connects the drainage channel 18 through the cooling channel ring 11 through it fluidly connects to the respective cooling structure 25.
- these outlet openings 27 are located radially further inward on the cooling channel ring 11.
- connection plate 14 covers the inlet channel 17 and the outlet channel 18 axially.
- connection plate 14 are now, preferably on an outside 28 facing away from the cooling channel ring 11, the previously mentioned supply connection 22 for supplying the coolant, which is fluidically connected through the connection plate 14 to the supply channel 17, and the above-mentioned discharge connection 23 for Discharge of the coolant, which is fluidically connected through the connection plate 14 to the drainage channel 18.
- the supply connection 22 and the discharge connection 23 are each axially oriented and arranged axially on the connection plate 14.
- the cooling structures 25 can expediently be configured identically. In principle, however, it is conceivable to design the cooling structures 25 differently. In the following, different examples of special embodiments of these cooling structures 25 are explained in more detail, which can be used either or in any combination.
- At least one such cooling structure 25 can be designed as a cooling channel 29 through which the coolant can flow and which guides the coolant from the respective inlet opening 26 to the respective outlet opening 27.
- the cooling channel 29 can preferably lead in a meandering shape from the respective inlet opening 26 to the respective outlet opening 27.
- the meander-shaped cooling channel 29 has several parallel rectilinear channels nal sections that are connected to one another via curved duct sections.
- At least one such cooling structure 25 can have a depression 30 through which the coolant can flow.
- the respective recess 30 is fluidically connected in an inlet region 31 to the respective inlet opening 26 and in an outlet region 32 remote from the inlet region 31 with the respective outlet opening 27.
- a plurality of axially protruding elevations 33 are formed in the respective recess 30, which are arranged between the respective inlet opening 26 and the respective outlet opening 27 and around which the coolant can flow.
- the axial dimension of these elevations 33 can correspond to the axial dimension of the recess 30, so that the elevations 33 close flush with the top 13 of the cooling channel ring 11 or lie in the same plane.
- the heat exchanger 10 serves to cool components 34 of the machine 1 to be cooled, which can preferably be the aforementioned power modules 7. If the aforementioned mounting ring 15 is used, it is mounted on the upper side 13 of the cooling channel ring 11. The components 34 to be cooled or the power modules 7 are then mounted on an outer side 35 of the mounting ring 15 facing away from the cooling channel ring 11.
- the components to be cooled 34 or the power modules 7 are mounted directly on the cooling channel ring 11.
- the power modules 7 are arranged such that they are adjacent in the circumferential direction 16 and are always arranged in the region of a cooling structure 25.
- the power modules 7 overlap with a cooling structure 25 in the axial direction 9.
- the mounting ring 15 or the cooling channel ring 11 can be designed in the area of the respective cooling structure 25 on its outside 35 for mounting the respective component 34 or the respective power module 7 .
- corresponding assembly openings 36 can be formed on the assembly ring 35, which are suitable, for example, for screwing the power modules 7 together.
- the mounting ring 15 can be designed to be closed in the circumferential direction 16, so that it covers all of the cooling structures 25 axially. It is also conceivable that the mounting ring 15 in the region of at least one such cooling structure 25 according to FIG. 10 has an opening 37 which axially penetrates the mounting ring 15 and which is axially open to the respective cooling structure 25.
- the component 34 to be cooled or the power module 7 is inserted into the said opening 37, for which purpose it is equipped with a circumferential step 38.
- the power module 7 can also simply be placed on the outer side 35 of the mounting ring 15. In any case, the component 34 to be cooled, here the power module 7, closes the opening 37 and is directly inflow from the coolant on an underside 39 facing the cooling channel ring 11.
- the elevations 33 shown in FIG. 8 can be dimensioned in such a way that they are supported directly on this underside 39 of the power module 7, as a result of which heat conduction is possible there, which overall improves the cooling of the power module 7. If, however, the closed mounting plate 15 When used in accordance with FIG. 3, the elevations 33 can be dimensioned such that they are supported on the mounting plate 15.
- the cooling structure 25 is formed by the depression 30, with no elevations 33 being provided here which protrude from a bottom 43 of the depression.
- the power module 7 is equipped on its underside 39 with a heat exchanger structure 40, for example in the form of webs, elevations, guide contours that protrude from the underside 39.
- the heat transfer structure 40 protrudes into the respective cooling structure 25, that is to say into the recess 30, where the coolant can flow around it directly.
- the heat exchanger structure 40 is designed in such a way that it is supported axially on the cooling channel ring 11 in the assembled state, i.e. quasi on the bottom 43 of the depression 30.
- each power module 7 is electrically connected to the respective winding 6 via a connecting line 41.
- the connection plate 14 is offset radially inward relative to the cooling channel ring 11.
- each of these connecting lines 41 with a separate through opening 42, through which the respective connecting line 41 extends axially, so as to connect the external power module 7 to the internal winding 6.
- several common through openings for several connecting lines 41 can also be provided. It is also conceivable for all connecting lines 41 to provide a common passage opening.
- the connection plate 14 can also be configured in an annular manner.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019212118.7A DE102019212118A1 (de) | 2019-08-13 | 2019-08-13 | Elektrische Maschine mit ringförmigem Wärmeübertrager |
PCT/EP2020/068378 WO2021028109A1 (de) | 2019-08-13 | 2020-06-30 | Elektrische maschine mit ringförmigem wärmeübertrager |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4014305A1 true EP4014305A1 (de) | 2022-06-22 |
Family
ID=71409415
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20735564.5A Withdrawn EP4014305A1 (de) | 2019-08-13 | 2020-06-30 | Elektrische maschine mit ringförmigem wärmeübertrager |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP4014305A1 (de) |
DE (1) | DE102019212118A1 (de) |
WO (1) | WO2021028109A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022109719A1 (de) | 2022-04-22 | 2023-10-26 | Schaeffler Technologies AG & Co. KG | Wärmetauscheranordnung mit einem eine Blechplatte aufweisenden Kühlkörper mit integriertem Kühlkanal; sowie elektrisches Antriebssystem |
DE102022212476A1 (de) | 2022-11-23 | 2024-05-23 | Zf Friedrichshafen Ag | Kühlsystem mit gehäuseintegrierten Wärmetauscherabschnitt sowie elektrische Antriebseinheit mit dem Kühlsystem |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH05292703A (ja) * | 1992-04-09 | 1993-11-05 | Toyota Motor Corp | 電気自動車用モータ |
JP3508206B2 (ja) * | 1994-04-27 | 2004-03-22 | 株式会社デンソー | 車両駆動用電動機 |
WO2004025809A1 (ja) * | 2002-09-13 | 2004-03-25 | Aisin Aw Co., Ltd. | 駆動装置 |
WO2013042486A1 (ja) * | 2011-09-20 | 2013-03-28 | 三菱電機株式会社 | 機電一体型モジュール |
JP5717669B2 (ja) * | 2012-02-21 | 2015-05-13 | 三菱電機株式会社 | 機電一体モジュール |
US20140265743A1 (en) * | 2013-03-14 | 2014-09-18 | Remy Technologies, Llc | Power electronics spring loaded between cover and housing |
DE102014205930A1 (de) * | 2014-03-31 | 2015-10-01 | Continental Automotive Gmbh | Elektrische Maschine |
US10381901B2 (en) * | 2017-05-12 | 2019-08-13 | Toyota Motor Engineering & Manufacturing North America, Inc. | Wireless in-wheel electric assemblies with integrated in-wheel cooling and vehicles incorporating the same |
DE102017215835A1 (de) * | 2017-09-07 | 2019-03-07 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | Fluidgekühlte elektrische Maschine |
DE102017222822A1 (de) * | 2017-12-14 | 2019-06-19 | Robert Bosch Gmbh | Elektrische Maschine |
DE102017131227A1 (de) * | 2017-12-22 | 2019-06-27 | Frideco Ag | Pumpenvorrichtung, insbesondere überflutbare Pumpenvorrichtung |
JP7059641B2 (ja) * | 2018-01-16 | 2022-04-26 | 日産自動車株式会社 | インバータの冷却構造 |
-
2019
- 2019-08-13 DE DE102019212118.7A patent/DE102019212118A1/de not_active Withdrawn
-
2020
- 2020-06-30 WO PCT/EP2020/068378 patent/WO2021028109A1/de unknown
- 2020-06-30 EP EP20735564.5A patent/EP4014305A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE102019212118A1 (de) | 2021-02-18 |
WO2021028109A1 (de) | 2021-02-18 |
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