DE102013226543A1 - Electric machine - Google Patents
Electric machine Download PDFInfo
- Publication number
- DE102013226543A1 DE102013226543A1 DE102013226543.3A DE102013226543A DE102013226543A1 DE 102013226543 A1 DE102013226543 A1 DE 102013226543A1 DE 102013226543 A DE102013226543 A DE 102013226543A DE 102013226543 A1 DE102013226543 A1 DE 102013226543A1
- Authority
- DE
- Germany
- Prior art keywords
- cooling
- rotor
- machine according
- electrical machine
- opening
- 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.)
- Pending
Links
- 238000001816 cooling Methods 0.000 claims abstract description 31
- 239000002826 coolant Substances 0.000 claims abstract description 12
- 230000005284 excitation Effects 0.000 claims abstract description 5
- 238000011156 evaluation Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
-
- 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
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
- H02K23/66—Structural association with auxiliary electric devices influencing the characteristic of, or controlling, the machine, e.g. with impedances or switches
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/28—Cooling of commutators, slip-rings or brushes e.g. by ventilating
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Motor Or Generator Cooling System (AREA)
- Motor Or Generator Frames (AREA)
Abstract
Elektrische Maschine, mit einem Stator und einem Rotor (16) mit einer Drehachse (19) und einem drehfest daran befestigten Lüfter (22), mit einem Lagerschild (13) und einem daran befestigten Lager (23) zum drehbaren Stützen des Rotors (16), mit einer Vorrichtung (31) zur Übertragung von elektrischer Energie zur elektromagnetischen Erregung des Rotors (16), mit einem Gehäuse (50), welches mindestens eine Öffnung (49) zum Einlass eines Kühlmediums in einem ersten Kühlstrom (53) entlang eines ersten Kühlpfades aufweist, wobei die Öffnungen (49) am Außenumfang des Gehäuses (50) angeordnet sind, dadurch gekennzeichnet, dass eine Leiteinrichtung (55) für das Kühlmedium zwischen mindestens zwei Kühlströmen (53, 64) angeordnet ist, wobei der zweite Kühlpfad zwischen einer Öffnung (49) am Außenumfang des Gehäuses (50) und der Vorrichtung (31) zur Übertragung von elektrischer Energie verläuft und danach an der Drehachse (19) des Rotors (16) vorbei verläuft und durch eine Öffnung (28) im Lagerschild (13) zum Lüfter (22) führt.Electric machine, comprising a stator and a rotor (16) with a rotation axis (19) and a fan (22) attached thereto in a rotationally fixed manner, with a bearing plate (13) and a bearing (23) attached thereto for rotatably supporting the rotor (16) , comprising a device (31) for transmitting electrical energy for the electromagnetic excitation of the rotor (16), having a housing (50) which has at least one opening (49) for the admission of a cooling medium in a first cooling flow (53) along a first cooling path wherein the openings (49) are arranged on the outer circumference of the housing (50), characterized in that a cooling medium guide (55) is arranged between at least two cooling streams (53, 64), the second cooling path between an opening (50). 49) on the outer circumference of the housing (50) and the device (31) for transmitting electrical energy and thereafter on the axis of rotation (19) of the rotor (16) passes and by a Öf (28) in the bearing plate (13) to the fan (22) leads.
Description
Stand der TechnikState of the art
Es wird eine elektrische Maschine vorgeschlagen, bei der eine Vorrichtung zur Übertragung von elektrischer Energie zur elektromagnetischen Erregung des Rotors besser gekühlt werden kann.It is proposed an electric machine in which a device for transmitting electrical energy for electromagnetic excitation of the rotor can be better cooled.
Bei Generatoren welche auch motorisch betrieben werden, ist teilweise ein Elektronikmodul auf dem Lagerschild der Maschine befestigt. Diese Elektronik enthält üblicherweise einen Sensor der das Magnetfeld eines am Rotor befestigten Sensors erfasst um daraus die Rotorlage zu erfassen. Durch die stärkere Bestromung der Rotorwicklung ist das Kohle-Schleifring-System bei dieser Betriebsweise stärker thermisch belastet, es entsteht eine größere Wärme an diesem Bauteil. Gleichzeitig ist gegenüber einem konventionellen Generator der Kühlluftstrom durch die aufgebaute Elektronik erschwert. Die Luft wird seitlich angesaugt, über Löcher im Lagerschild an den Lüfter geführt und von dort wieder radial nach außen gefördert. Im Elektronikmodul sind üblicherweise Kühlrippen angebracht, um die Elektronik zu kühlen. Bei weitgehend symmetrischem Aufbau der Kühlrippen an der Elektronik ist der mittlere Raum in Achsmitte sehr schlecht durchlüftet. Entstehende Wärme am Schleifring wird schlecht abgeführt, es können hohe Temperaturen entstehen. Diese Temperaturen können durch Wärmeleitung an den Lagegebermagnet weitergeleitet werden und dadurch zu einer Schädigung des Magneten führen. Auch das KSS kann durch zu hohe Temperaturen geschädigt werden.In the case of generators which are also operated by motor, in part an electronic module is fastened on the bearing plate of the machine. This electronics usually contains a sensor which detects the magnetic field of a sensor attached to the rotor in order to detect the rotor position therefrom. Due to the stronger energization of the rotor winding, the carbon slip ring system is more thermally stressed in this mode of operation, it creates a greater heat to this component. At the same time compared to a conventional generator, the cooling air flow is complicated by the built-up electronics. The air is sucked in laterally, passed through holes in the end shield to the fan and from there again conveyed radially outwards. Cooling fins are usually installed in the electronics module to cool the electronics. With largely symmetrical design of the cooling fins on the electronics, the middle space in the center of the axle is very poorly ventilated. Resulting heat at the slip ring is poorly dissipated, it can cause high temperatures. These temperatures can be forwarded by thermal conduction to the position sensor magnet and thereby lead to damage to the magnet. Also, the KSS can be damaged by high temperatures.
Die Erfindung beschreibt eine gezielte Zuluftführung radial von außen über den Schleifringraum in die gegenüberliegende Ansaugöffnung im Lagerschild.The invention describes a targeted supply air supply radially from the outside via the slip ring space in the opposite intake in the bearing plate.
Dabei kann die Luftführung
- – komplett zu dem der Ansaugöffnung gegenüberliegenden Loch im Lagerschild geführt werden.
- – teilweise zu dem der Ansaugöffnung gegenüberliegenden Loch im Lagerschild geführt werden.
- – zu einem links und/oder rechts des Schleifrings führenden Lochs im Lagerschild geleitet werden.
- - Are performed completely to the intake opening opposite hole in the bearing plate.
- - Are partially led to the intake opening opposite hole in the bearing plate.
- - be led to a left and / or right of the slip ring leading hole in the bearing plate.
Die Luftumlenkung kann durch ein Kunststoffspritzteil erfolgen oder durch einen in den Kühlkörper der Elektronik eingearbeitete Geometrie.The air deflection can be done by a plastic injection molded part or by a incorporated into the heat sink of the electronics geometry.
Figurencharacters
Beschreibungdescription
Auf dem Lagerschild
Es ist somit eine elektrische Maschine
Durch den zweiten Kühlstrom
Claims (8)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013226543.3A DE102013226543A1 (en) | 2013-12-18 | 2013-12-18 | Electric machine |
FR1462474A FR3015143B1 (en) | 2013-12-18 | 2014-12-16 | ELECTRIC MACHINE |
CN201410858511.7A CN104734423B (en) | 2013-12-18 | 2014-12-16 | Motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013226543.3A DE102013226543A1 (en) | 2013-12-18 | 2013-12-18 | Electric machine |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102013226543A1 true DE102013226543A1 (en) | 2015-06-18 |
Family
ID=53192500
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102013226543.3A Pending DE102013226543A1 (en) | 2013-12-18 | 2013-12-18 | Electric machine |
Country Status (3)
Country | Link |
---|---|
CN (1) | CN104734423B (en) |
DE (1) | DE102013226543A1 (en) |
FR (1) | FR3015143B1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016211463A1 (en) | 2016-06-27 | 2017-12-28 | Robert Bosch Gmbh | Cooling device of an electronics unit in an electrical machine |
WO2018029217A1 (en) * | 2016-08-12 | 2018-02-15 | Robert Bosch Gmbh | Electrical machine unit comprising a slip ring arrangement exposed to an air current |
US11946487B2 (en) | 2019-09-05 | 2024-04-02 | Dyson Technology Limited | Compressor comprising a flow guide disposed within an air inlet |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018117499A1 (en) * | 2018-07-19 | 2020-01-23 | Seg Automotive Germany Gmbh | Electrical machine |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2826930C2 (en) * | 1978-06-20 | 1990-01-18 | Robert Bosch Gmbh, 7000 Stuttgart, De | |
EP1056186A2 (en) * | 1999-05-26 | 2000-11-29 | Mitsubishi Denki Kabushiki Kaisha | Automotive alternator |
DE102007009561A1 (en) * | 2006-04-27 | 2007-11-08 | Denso Corporation, Kariya | Vehicle alternator |
DE102008007076A1 (en) * | 2008-01-31 | 2009-08-13 | Robert Bosch Gmbh | Electric machine, in particular three-phase machine with slip ring rotor |
DE102011089667A1 (en) * | 2011-12-22 | 2013-06-27 | Robert Bosch Gmbh | Electrical machine of boost recuperation system for motor car, has centering sleeve that is guided in area of bearing bore of bearing plates, and is firmly connected to base portion in radial direction |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1407527B1 (en) * | 2001-07-16 | 2014-11-12 | Valeo Equipements Electriques Moteur | Current rectifier assembly for rotating electrical machines, in particular motor vehicle alternator |
JP4566868B2 (en) * | 2005-09-08 | 2010-10-20 | 三菱電機株式会社 | Rotating electric machine for vehicles |
-
2013
- 2013-12-18 DE DE102013226543.3A patent/DE102013226543A1/en active Pending
-
2014
- 2014-12-16 CN CN201410858511.7A patent/CN104734423B/en active Active
- 2014-12-16 FR FR1462474A patent/FR3015143B1/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2826930C2 (en) * | 1978-06-20 | 1990-01-18 | Robert Bosch Gmbh, 7000 Stuttgart, De | |
EP1056186A2 (en) * | 1999-05-26 | 2000-11-29 | Mitsubishi Denki Kabushiki Kaisha | Automotive alternator |
DE102007009561A1 (en) * | 2006-04-27 | 2007-11-08 | Denso Corporation, Kariya | Vehicle alternator |
DE102008007076A1 (en) * | 2008-01-31 | 2009-08-13 | Robert Bosch Gmbh | Electric machine, in particular three-phase machine with slip ring rotor |
DE102011089667A1 (en) * | 2011-12-22 | 2013-06-27 | Robert Bosch Gmbh | Electrical machine of boost recuperation system for motor car, has centering sleeve that is guided in area of bearing bore of bearing plates, and is firmly connected to base portion in radial direction |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016211463A1 (en) | 2016-06-27 | 2017-12-28 | Robert Bosch Gmbh | Cooling device of an electronics unit in an electrical machine |
WO2018001819A1 (en) | 2016-06-27 | 2018-01-04 | Robert Bosch Gmbh | Cooling device of an electric unit in an electric machine |
CN109463028A (en) * | 2016-06-27 | 2019-03-12 | Seg汽车德国有限公司 | The cooling body of electronic unit in the machine of electricity |
WO2018029217A1 (en) * | 2016-08-12 | 2018-02-15 | Robert Bosch Gmbh | Electrical machine unit comprising a slip ring arrangement exposed to an air current |
US11946487B2 (en) | 2019-09-05 | 2024-04-02 | Dyson Technology Limited | Compressor comprising a flow guide disposed within an air inlet |
Also Published As
Publication number | Publication date |
---|---|
FR3015143B1 (en) | 2023-12-29 |
CN104734423A (en) | 2015-06-24 |
CN104734423B (en) | 2018-07-10 |
FR3015143A1 (en) | 2015-06-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R163 | Identified publications notified | ||
R081 | Change of applicant/patentee |
Owner name: SEG AUTOMOTIVE GERMANY GMBH, DE Free format text: FORMER OWNER: ROBERT BOSCH GMBH, 70469 STUTTGART, DE Owner name: ROBERT BOSCH GMBH, DE Free format text: FORMER OWNER: ROBERT BOSCH GMBH, 70469 STUTTGART, DE |
|
R082 | Change of representative |
Representative=s name: DEHNSGERMANY PARTNERSCHAFT VON PATENTANWAELTEN, DE Representative=s name: DEHNS GERMANY, DE |
|
R012 | Request for examination validly filed | ||
R081 | Change of applicant/patentee |
Owner name: SEG AUTOMOTIVE GERMANY GMBH, DE Free format text: FORMER OWNERS: ROBERT BOSCH GMBH, 70469 STUTTGART, DE; SEG AUTOMOTIVE GERMANY GMBH, 70499 STUTTGART, DE |
|
R082 | Change of representative |
Representative=s name: DEHNS GERMANY, DE |
|
R082 | Change of representative |
Representative=s name: DEHNSGERMANY PARTNERSCHAFT VON PATENTANWAELTEN, DE Representative=s name: DEHNS GERMANY PARTNERSCHAFT MBB, DE |