EP3707805A1 - Machine électromagnétique à flux axial à circuit de refroidissement commun à la machine et à ses moyens électroniques de commande et de puissance - Google Patents
Machine électromagnétique à flux axial à circuit de refroidissement commun à la machine et à ses moyens électroniques de commande et de puissanceInfo
- Publication number
- EP3707805A1 EP3707805A1 EP18804384.8A EP18804384A EP3707805A1 EP 3707805 A1 EP3707805 A1 EP 3707805A1 EP 18804384 A EP18804384 A EP 18804384A EP 3707805 A1 EP3707805 A1 EP 3707805A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- motor
- cooling
- ring
- rotor
- electronic control
- 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- Withdrawn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
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/04—Machines with one rotor and two stators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
- H02K9/227—Heat sinks
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2211/00—Specific aspects not provided for in the other groups of this subclass relating to measuring or protective devices or electric components
- H02K2211/03—Machines characterised by circuit boards, e.g. pcb
Definitions
- the present invention relates to an electromagnetic motor or generatrix with an axial flow with a cooling circuit common to the engine and to its electronic control and power means.
- Such an engine can be used, for example, as an electromagnetic motor in a fully electric motor vehicle
- the motor or the electromagnetic generator may comprise at least one rotor flanked by two stators, these elements being superimposed relative to each other by being separated by at least one gap on the same shaft.
- the engine or generator is also associated with electronic control and power means that give off heat and must also be frequently cooled or ventilated. This implies the
- the document US2014232217A1 considered as illustrating the closest state of the art, describes an electromagnetic motor or generator which is however not in axial flux with at least one rotor and at least one stator housed in a housing having internally a circuit cooling fluid and wrapping the motor leaving only an end portion of a rotor drive shaft protruding.
- the motor or the electromagnetic generator has electronic means of control and power.
- the cooling circuit has a common element cooling said first rotor and stator and electronic control and power means.
- a cooling system of a radial flow motor as described in this document can not be transposed to an axial flow motor without specific adaptation. These two types of engine have different technical characteristics and undergo a heating which is not the same and which is not treated in a similar way.
- the problem underlying the present invention is to design a set of an axial flow electromagnetic motor or generator with associated electronic control and power means which can guarantee a protection against heating of the assembly due in particular one or rotors rotating at very high speeds and Joule losses in the stator or stators while having a small footprint.
- the present invention relates to an electromagnetic motor or generator with at least one rotor and at least one stator housed in a housing, the housing having internally a cooling fluid circuit and enveloping the engine, leaving only an end portion of a rotor drive shaft, the motor or the electromagnetic generator having electronic control and power means, the cooling circuit having a common element for cooling, on the one hand, said minus one rotor and a stator, and secondly, electronic means of control and power, characterized in that the motor or the electromagnetic generator is axial flow and that the common element is in the form of a crown of cooling closing a fluid inlet ring containing the cooling circuit in its interior by having a wafer carrying at least one inlet and an outlet for the cooling fluid, the cooling ring forming a rear portion of the housing.
- the technical effect is to combine the cooling means of the engine or the generator with the cooling means of the electronic control and power means, which represents an economy of means, a reduction in cost and a smaller footprint for the motor and means assembly e.
- this ring with inlet and outlet for the cooling fluid which forms the main part of the cooling circuit with the circuit forming coils advantageously wound spirally or concentrically in its interior.
- a cover axially extends the housing enclosing and protecting the electronic means of control and power of the engine, the housing and the cover forming a closed assembly including in its interior said at least one rotor and a stator and the electronic control means and power.
- the cover is adjacent to the housing, secured to the housing and contains the electronic means of control and power.
- the motor assembly or generator and electronic means of control and power is thus more compact while protecting their associated elements.
- the cover is fixed by removable fastening means on the cooling ring forming the rear portion of the housing.
- the cover covers at least partially or is adjacent to the cooling ring in the mounted position of the cover on the housing, the cover being pierced with peripheral bores regularly distributed around a circumference of the cover for the passage of means for securing the cover.
- the electronic control and power means are in the form of a printed circuit board.
- the cooling ring of the cooling fluid circuit has a face facing said at least one rotor and a stator of the motor and an opposite face bearing against the electronic means of control and power.
- the printed circuit board is in the form of a disc bearing against the opposite face of the cooling plate, the printed circuit board having a surface that is similar to or less than 10% less than the cooling ring. Since the surfaces of the cooling plate and the printed circuit board are substantially equivalent, the cooling of the printed circuit board by the cooling plate is optimal.
- a front portion of the housing has a front ring, the front ring and the fluid inlet ring having the same diameter and surrounding each other a cylindrical portion of diameter less than the diameter of the front and fluid inlet rings, the front and fluid inlet rings being secured to each other by being spaced apart by threaded rods extending in length between the front and fluid inlet rings and arranged regularly spaced close to the periphery of the front and inlet crowns fluid, a portion of each longitudinal end of each threaded rod passing through a respective ring.
- the front ring, the cylindrical portion, the fluid inlet ring and the cooling ring externally delimit the motor housing.
- the front ring incorporates a portion of a cooling fluid auxiliary circuit.
- This auxiliary circuit may be independent or connected to the cooling circuit common to the electronic means and to the motor or the generator.
- the front ring has a median recess for the passage of the drive shaft of the rotor.
- the motor or the electromagnetic generator comprises at least one rotor associated with two stators.
- FIG. 1 is a schematic representation of a perspective view of an engine casing comprising a cover housing the electronic control and power means for an axial flow electromagnetic machine according to an embodiment of the present invention, a cooling circuit being integrated in the housing being common for the mechanical and electrical elements of the engine and the electronic means of control and power,
- FIG. 2 is a diagrammatic representation of an exploded view of an axial flow electromagnetic machine according to the embodiment of the present invention shown in FIG.
- cooling circuit qualifies the cooling circuit itself but also its coating, for example, a fluid inlet ring as the main portion of the cooling circuit and a cooling plate.
- the present invention relates to an M motor or an axial flow electromagnetic generator with at least one rotor and at least one stator housed in a housing 1.
- the casing 1 internally has a cooling fluid circuit and envelops the motor M leaving only an end portion of a drive shaft of the rotor protruding.
- the motor M or the electromagnetic generator furthermore has electronic means of control and power 4.
- the cooling circuit has a common element 3 for cooling, on the one hand, said at least one rotor and a stator and, on the other hand, electronic control and power means 4.
- the cooling circuit is internal to the casing 1.
- the common element 3 ensuring the cooling of said at least one rotor and a stator and electronic control and power means 4 may be in the form of a cooling plate, preferably a disk cooling.
- a cover 10 can axially extend the casing 1 by surrounding and protecting the control and power electronic means 4 of the motor M.
- the casing 1 and the cover 10 then form a closed assembly grouping in its interior said at least one rotor and a stator and the electronic control and power means 4 separated by the common cooling element 3.
- the electronic control and power means 4 may be in the form of a printed circuit board 4, advantageously forming a disk.
- the cooling fluid circuit may comprise a cooling plate 3 forming the common cooling element.
- the cooling plate 3 may have a face facing said at least one rotor and a stator of the motor M and an opposite face bearing against the electronic control and power means 4.
- the cooling fluid circuit may comprise a main portion 2, advantageously in the form of a so-called fluid inlet ring, housing coils, the fluid inlet ring 2 being closed by the cooling plate 3.
- cooling plate 3 can be secured by threaded rods 5 with the main portion 2, preferably in the form of a fluid inlet ring.
- Brackets 7 or L-shaped pieces with two branches perpendicular to each other may be secured at one end of a branch to the cover 10 and at the other end to the cooling plate 3 on the face turned towards the electronic means of control and power 4 at the periphery of this face of the cooling plate 3.
- the securing can be carried out by holding screws or bolts referenced 8 when associated with the cooling plate 3 and referenced 6 when associated with the cover 10, in which case the bolts 6 can be associated with nuts 9 located outside the hood 10.
- a reference 7 is assigned to a single bracket, a single bolt associated with the cooling plate 3 is referenced 8, just as a single bolt and a single nut associated with the cover 10 are referenced respectively 6 and 9, but what is stated for a referenced element applies to all similar elements shown in the figures.
- the printed circuit board 4 may be in the form of a disc bearing face-to-face with the opposite face of the cooling plate 3, so that the face of the cooling plate 3 is turned towards the inside of the cover 10. Without that this is limiting, the printed circuit board 4 may have a surface similar or less than 10% less than the cooling plate 3 so that the cooling surface is important.
- the cooling plate 3 may be in the form of a cooling ring closing a fluid inlet ring 2 as the main portion of the cooling circuit.
- the fluid inlet ring 2 may contain the cooling circuit itself inside by having a wafer carrying at least one inlet 2a and an outlet 2b for the cooling fluid, which is advantageously a liquid, preferably based on 'water.
- the cooling ring 3 can form a rear part of the casing 1 on which the cover 10 is fixed by removable fastening means 6 to 9, in the form of the brackets 7 with screws holding or bolts referenced 8 when associated with the cooling ring 3 and referenced 6 when associated with the cover 10 with in this case nuts 9.
- the cover 10 can cover the cooling ring 3 in the mounted position of the cap 10 on the casing 1.
- the cover 10 may be pierced with peripheral bores regularly distributed around a circumference of the cover 10 for the passage of fastening means 6 of the cover 10 with a free end of a branch of a respective bracket 7.
- One free end of the other branch of each bracket 7 may have a securing means 8 with the cooling ring 3, the securing means being in the form of screws or holding bolts.
- a front portion of the casing 1 may have a front ring 12.
- the front ring 12 and the fluid inlet ring 2 may have the same diameter and surround between them a cylindrical portion 1 1 of diameter smaller than the diameter of the front crowns and fluid inlet 2.
- the front crowns 12 and fluid inlet 2 may be secured to each other by being spaced apart by threaded rods extending in length between the front rings 12 and fluid inlet 2 and arranged regularly spaced close to the periphery crowns before 12 and fluid inlet 2.
- each longitudinal end of each threaded rod can pass through a front ring 12 and respective fluid inlet 2, these threaded rods not being shown in the figures.
- the front ring 12 may incorporate a portion of an auxiliary coolant circuit.
- This auxiliary circuit may or may not be connected to the cooling fluid circuit towards the end of the casing 1 adjacent to the cover 10 passing through the fluid inlet ring 2.
- the front ring 12 may have a median recess for the passage of the drive shaft of the rotor.
- the motor M or the electromagnetic generator may comprise at least one rotor associated with two stators.
- the cooling fluid of the internal cooling circuit to the casing 1 can be cooled in a radiator arranged at a distance from the motor M or the electromagnetic machine.
- this radiator can be a high temperature or low temperature radiator present at the front of the motor vehicle.
- the radiator can be used to cool the cooling fluid of other elements of the electric propulsion such as a heat exchanger associated with a traction battery or other electronic elements external to the motor M such as an inverter. It can also be used for cooling a heat transfer fluid passing through a heat engine when it is present.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
- Motor Or Generator Frames (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1701155A FR3073341B1 (fr) | 2017-11-06 | 2017-11-06 | Moteur ou generatrice electromagnetique a flux axial a circuit de refroidissement commun au moteur et a ses moyens electroniques de commande et de puissances |
PCT/IB2018/001222 WO2019092489A1 (fr) | 2017-11-06 | 2018-11-05 | Machine électromagnétique à flux axial à circuit de refroidissement commun à la machine et à ses moyens électroniques de commande et de puissance |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3707805A1 true EP3707805A1 (fr) | 2020-09-16 |
Family
ID=62017298
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18804384.8A Withdrawn EP3707805A1 (fr) | 2017-11-06 | 2018-11-05 | Machine électromagnétique à flux axial à circuit de refroidissement commun à la machine et à ses moyens électroniques de commande et de puissance |
Country Status (7)
Country | Link |
---|---|
US (1) | US20200295622A1 (fr) |
EP (1) | EP3707805A1 (fr) |
JP (1) | JP7228271B2 (fr) |
CN (1) | CN112534688A (fr) |
FR (1) | FR3073341B1 (fr) |
RU (1) | RU2020116471A (fr) |
WO (1) | WO2019092489A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3136126B1 (fr) * | 2022-05-31 | 2024-04-12 | Renault | Demi-boitier pour un moteur électrique |
KR102739939B1 (ko) * | 2023-03-24 | 2024-12-10 | 명화공업주식회사 | 모터 |
DE102023126460A1 (de) * | 2023-09-28 | 2025-04-03 | Bayerische Motoren Werke Aktiengesellschaft | Antriebseinrichtung für ein Kraftfahrzeug und Kraftfahrzeug |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3843967C2 (de) * | 1988-12-24 | 1996-07-18 | Teves Gmbh Alfred | Elektrischer Kleinmotor, insbesondere für Scheibenwischeranlagen an Kfz |
FR2857794B1 (fr) * | 2003-07-17 | 2006-12-08 | Jeumont Sa | Dispositif de refroidissement d'une machine electrique, en particulier d'une machine electrique synchrone a aimants permanents |
JP4082359B2 (ja) * | 2004-03-11 | 2008-04-30 | 日産自動車株式会社 | 回転電機の冷却構造 |
US6831382B1 (en) * | 2004-03-17 | 2004-12-14 | Emerson Electric Co. | Cover for electric motor |
JP4608967B2 (ja) * | 2004-06-29 | 2011-01-12 | 日産自動車株式会社 | ディスク型回転電機のロータ構造およびロータ製造方法 |
US8169110B2 (en) * | 2009-10-09 | 2012-05-01 | GM Global Technology Operations LLC | Oil cooled motor/generator for an automotive powertrain |
US8872395B2 (en) * | 2009-11-04 | 2014-10-28 | Fraen Mechatronics, Llc | Rotary single-phase electromagnetic actuator |
US9337706B2 (en) * | 2011-09-20 | 2016-05-10 | Mitsubishi Electric Corporation | Mechanically and electrically integrated module |
KR20140058677A (ko) * | 2011-09-29 | 2014-05-14 | 가부시키가이샤 야스카와덴키 | 모터 구동 장치 및 차량 |
EP2761731B1 (fr) * | 2011-12-24 | 2020-09-30 | Rotonix China Co., Limited | Système de refroidissement de volant électromécanique |
JP5859031B2 (ja) * | 2012-02-07 | 2016-02-10 | 三菱電機株式会社 | 機電一体モジュール |
JP6144434B2 (ja) * | 2013-09-10 | 2017-06-07 | プロティアン エレクトリック リミテッドProtean Electric Limited | 電気モータ又は発電機 |
DE102014206356A1 (de) * | 2014-04-03 | 2015-10-08 | Bayerische Motoren Werke Aktiengesellschaft | Verbesserte Sternscheibe für eine elektrische Maschine |
-
2017
- 2017-11-06 FR FR1701155A patent/FR3073341B1/fr active Active
-
2018
- 2018-11-05 US US16/753,686 patent/US20200295622A1/en not_active Abandoned
- 2018-11-05 JP JP2020521988A patent/JP7228271B2/ja active Active
- 2018-11-05 RU RU2020116471A patent/RU2020116471A/ru unknown
- 2018-11-05 WO PCT/IB2018/001222 patent/WO2019092489A1/fr unknown
- 2018-11-05 CN CN201880071627.2A patent/CN112534688A/zh active Pending
- 2018-11-05 EP EP18804384.8A patent/EP3707805A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
WO2019092489A8 (fr) | 2021-01-14 |
US20200295622A1 (en) | 2020-09-17 |
RU2020116471A (ru) | 2021-12-08 |
JP2021509562A (ja) | 2021-03-25 |
JP7228271B2 (ja) | 2023-02-24 |
FR3073341B1 (fr) | 2021-08-06 |
RU2020116471A3 (fr) | 2022-02-28 |
CN112534688A (zh) | 2021-03-19 |
FR3073341A1 (fr) | 2019-05-10 |
WO2019092489A1 (fr) | 2019-05-16 |
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