DE102011105614A1 - Heating system for heating passenger compartment of electric car, has electric motor whose rotor shaft comprises partially hollow inner space that is filled with heating fluid, where fluid is fed by hollow inner space - Google Patents
Heating system for heating passenger compartment of electric car, has electric motor whose rotor shaft comprises partially hollow inner space that is filled with heating fluid, where fluid is fed by hollow inner space Download PDFInfo
- Publication number
- DE102011105614A1 DE102011105614A1 DE102011105614A DE102011105614A DE102011105614A1 DE 102011105614 A1 DE102011105614 A1 DE 102011105614A1 DE 102011105614 A DE102011105614 A DE 102011105614A DE 102011105614 A DE102011105614 A DE 102011105614A DE 102011105614 A1 DE102011105614 A1 DE 102011105614A1
- Authority
- DE
- Germany
- Prior art keywords
- rotor shaft
- heating
- electric motor
- inner space
- fluid
- 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.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
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- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
Die Erfindung bezieht sich auf ein Heizungssystem für ein Fahrzeug, mit einem Elektromotor, welcher eine Rotorwelle aufweist.The invention relates to a heating system for a vehicle, comprising an electric motor having a rotor shaft.
Bei Elektrofahrzeugen können zusätzliche Verbraucher eine deutliche Reduktion der Reichweite hervorrufen. Dabei handelt es sich beispielsweise um die Heizung der Fahrgastzelle. Der Offenlegungsschrift
Der Erfindung liegt die Aufgabe zugrunde, ein Heizungssystem vorzuschlagen, welches die Abwärme eines Elektromotors verwendet.The invention has for its object to propose a heating system which uses the waste heat of an electric motor.
Die Aufgabe wird erfindungsgemäß dadurch gelöst, dass die Rotorwelle einen zumindest teilweise hohlen Innenraum aufweist, dass mindestens ein Heizungsfluid vorgesehen ist, und dass das Heizungsfluid durch den Innenraum der Rotorwelle geführt ist. Das thermisch leitende Heizungsfluid wird beispielsweise durch eine Pumpe bewegt und tritt z. B. in Wechselwirkung mit der Luft, welche in die Fahrgastzelle durch einen Ventilator eingebracht wird. In einer Ausgestaltung wird das Heizungsfluid derartig geleitet, dass über eine thermische Wechselwirkung mit dem Außenraum um das Fahrzeug herum z. B. bei reduziertem Heizbedarf die Wärme des Elektromotors abgeführt wird.The object is achieved in that the rotor shaft has an at least partially hollow interior, that at least one heating fluid is provided, and that the heating fluid is guided through the interior of the rotor shaft. The thermally conductive heating fluid is moved for example by a pump and enters z. B. in interaction with the air, which is introduced into the passenger compartment by a fan. In one embodiment, the heating fluid is conducted in such a way that via a thermal interaction with the outer space around the vehicle z. B. with reduced heating demand, the heat of the electric motor is dissipated.
Eine Ausgestaltung der Erfindung sieht vor, dass der Elektromotor in einem Elektromotorgehäuse angeordnet ist, dass das Elektromotorgehäuse einen Innenraum um die Rotorwelle herum aufweist, und dass das Heizungsfluid kontaktfrei mit dem Innenraum des Elektromotorgehäuses durch die Rotorwelle geführt ist. Das Heizungsfluid durchströmt in dieser Ausgestaltung somit nur die Rotorwelle und nicht den Innenraum des Elektromotors um die Rotorwelle herum.An embodiment of the invention provides that the electric motor is arranged in an electric motor housing, that the electric motor housing has an inner space around the rotor shaft, and that the heating fluid is guided without contact with the interior of the electric motor housing through the rotor shaft. The heating fluid thus flows through in this embodiment, only the rotor shaft and not the interior of the electric motor to the rotor shaft around.
Eine Ausgestaltung der Erfindung beinhaltet, dass mindestens eine Leitungseinheit vorgesehen ist, dass die Leitungseinheit zumindest teilweise in dem Innenraum der Rotorwelle angeordnet ist, und dass das Heizungsfluid in der Leitungseinheit geführt ist. In dieser Ausgestaltung befindet sich das Heizungsfluid in einer Leitungseinheit (z. B. ein flexibles oder starres Rohr), welche wiederum in der Rotorwelle angeordnet ist. Die Leitungseinheit kann dabei mit dem Rohr mitrotieren oder gegenüber dem Rohr stillstehen.An embodiment of the invention includes that at least one line unit is provided, that the line unit is at least partially disposed in the interior of the rotor shaft, and that the heating fluid is guided in the line unit. In this embodiment, the heating fluid is located in a conduit unit (eg a flexible or rigid tube), which in turn is arranged in the rotor shaft. The line unit can rotate with the pipe or stand still with respect to the pipe.
Eine Ausgestaltung der Erfindung sieht vor, dass die Leitungseinheit in dem Innenraum der Rotorwelle von einem Mittlermedium umgeben ist. In dieser Ausgestaltung wird die Abwärme des Elektromotors von der Rotorwelle über des Mittlermedium auf die Leitungseinheit und von dort auf das Heizungsfluid übertragen. Das Heizungsfluid und das Mittlermedium können dabei gleich oder unterschiedlich ausgestaltet sein.An embodiment of the invention provides that the line unit in the interior of the rotor shaft is surrounded by a middle medium. In this embodiment, the waste heat of the electric motor is transmitted from the rotor shaft via the middle medium to the line unit and from there to the heating fluid. The heating fluid and the medium medium can be configured the same or different.
Eine Ausgestaltung besteht darin, dass in der Leitungseinheit und/oder in der Rotorwelle mindestens eine Beschleunigungsvorrichtung vorgesehen ist. Dreht sich die Leitungseinheit mit der Rotorwelle mit, so ist beispielsweise die Beschleunigungsvorrichtung eine spiralförmige Struktur der Leitungseinheit oder in der Leitungseinheit, welche für eine stärkere Pumpwirkung des Heizungsfluids durch die Leitungseinheit sorgt. Alternativ ist der Innenraum der Rotorwelle entsprechend ausgestaltet oder bestückt.An embodiment consists in that at least one acceleration device is provided in the line unit and / or in the rotor shaft. If the line unit rotates with the rotor shaft, the acceleration device, for example, is a spiral-shaped structure of the line unit or in the line unit, which ensures a stronger pumping action of the heating fluid through the line unit. Alternatively, the interior of the rotor shaft is configured or equipped accordingly.
Eine Ausgestaltung der Erfindung beinhaltet, dass ein Getriebe mit einer Getriebewelle vorgesehen ist, dass die Getriebewelle einen zumindest teilweise hohlen Innenraum aufweist, und dass das Heizungsfluid durch den Innenraum der Getriebewelle geführt ist. Das Heizungsfluid wird somit durch den Elektromotor und das Getriebe geführt. Die Flussrichtung des Heizungsfluids ist dabei vorzugsweise vom Getriebe zum Elektromotor. Dadurch soll verhindert werden, dass möglichst nicht das wärme Heizungsfluid zu den Getriebebauteilen gelangt. Eine Ausgestaltung der Erfindung sieht vor, dass der Innenraum der Getriebewelle und der Innenraum der Rotorwelle miteinander verbunden sind. Eine Ausgestaltung der Erfindung beinhaltet, dass die Getriebewelle und die Rotorwelle einteilig ausgestaltet sind. Alternativ sind die Getriebewelle und die Rotorwelle unmittelbar miteinander verbunden bzw. teilweise ineinander angeordnet.An embodiment of the invention includes that a transmission is provided with a transmission shaft, that the transmission shaft has an at least partially hollow interior, and that the heating fluid is guided through the interior of the transmission shaft. The heating fluid is thus passed through the electric motor and the transmission. The flow direction of the heating fluid is preferably from the transmission to the electric motor. This is to prevent that as far as possible the heat heating fluid does not reach the transmission components. An embodiment of the invention provides that the interior of the transmission shaft and the interior of the rotor shaft are interconnected. An embodiment of the invention includes that the gear shaft and the rotor shaft are designed in one piece. Alternatively, the transmission shaft and the rotor shaft are directly connected to each other or partially arranged in each other.
Eine Ausgestaltung der Erfindung sieht vor, dass das Getriebe von einem Getriebegehäuse umgeben ist, und dass das Elektromotorgehäuse und das Getriebegehäuse im Wesentlichen unmittelbar nebeneinander angeordnet sind. Eine Ausgestaltung der Erfindung beinhaltet, dass die Rotorwelle und die Getriebewelle insgesamt durch nur drei Lager im Elektromotorgehäuse und im Getriebegehäuse gelagert sind.An embodiment of the invention provides that the transmission is surrounded by a transmission housing, and that the electric motor housing and the gear housing are arranged substantially immediately adjacent to each other. An embodiment of the invention includes that the rotor shaft and the transmission shaft are mounted in total by only three bearings in the electric motor housing and in the transmission housing.
Die Erfindung wird anhand der Figuren näher erläutert. Dabei zeigen:The invention will be explained in more detail with reference to FIGS. Showing:
Die
Die
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 102009000204 A1 [0002] DE 102009000204 A1 [0002]
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011105614A DE102011105614A1 (en) | 2011-06-28 | 2011-06-28 | Heating system for heating passenger compartment of electric car, has electric motor whose rotor shaft comprises partially hollow inner space that is filled with heating fluid, where fluid is fed by hollow inner space |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011105614A DE102011105614A1 (en) | 2011-06-28 | 2011-06-28 | Heating system for heating passenger compartment of electric car, has electric motor whose rotor shaft comprises partially hollow inner space that is filled with heating fluid, where fluid is fed by hollow inner space |
Publications (1)
Publication Number | Publication Date |
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DE102011105614A1 true DE102011105614A1 (en) | 2013-01-03 |
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Family Applications (1)
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DE102011105614A Withdrawn DE102011105614A1 (en) | 2011-06-28 | 2011-06-28 | Heating system for heating passenger compartment of electric car, has electric motor whose rotor shaft comprises partially hollow inner space that is filled with heating fluid, where fluid is fed by hollow inner space |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014107843B3 (en) * | 2014-06-04 | 2015-11-26 | Thyssenkrupp Presta Teccenter Ag | Media transport in rotor shaft |
DE102015218519A1 (en) * | 2015-09-25 | 2016-09-29 | Magna powertrain gmbh & co kg | Electric machine |
CN112956118A (en) * | 2018-11-05 | 2021-06-11 | 采埃孚股份公司 | Electric machine with fluid cooling |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009000204A1 (en) | 2009-01-14 | 2010-07-15 | Robert Bosch Gmbh | Electric drive and heating for a vehicle, and method for heating a vehicle |
-
2011
- 2011-06-28 DE DE102011105614A patent/DE102011105614A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009000204A1 (en) | 2009-01-14 | 2010-07-15 | Robert Bosch Gmbh | Electric drive and heating for a vehicle, and method for heating a vehicle |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014107843B3 (en) * | 2014-06-04 | 2015-11-26 | Thyssenkrupp Presta Teccenter Ag | Media transport in rotor shaft |
US10965185B2 (en) | 2014-06-04 | 2021-03-30 | Thyssenkrupp Presta Teccenter Ag | Media transport in rotor shaft |
DE102015218519A1 (en) * | 2015-09-25 | 2016-09-29 | Magna powertrain gmbh & co kg | Electric machine |
CN112956118A (en) * | 2018-11-05 | 2021-06-11 | 采埃孚股份公司 | Electric machine with fluid cooling |
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R163 | Identified publications notified | ||
R163 | Identified publications notified |
Effective date: 20121219 |
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R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20140101 |