• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to an electric drive unit (1), in particular for a motor vehicle, having at least two liquid-cooled electrical machines (2, 3) which are arranged in a respective coolant branch (10a, 11a) of a common cooling circuit (6) of a cooling system (K). can be arranged and parallel flowed through by coolant, wherein in the common cooling circuit (6), preferably upstream of the electric machines (2, 3), a coolant pump (7) is arranged. In order to allow the best possible temperature control of the electric machines (2, 3) and power electronics (9) in a structurally simple manner, it is provided that at least one power electronics (9) is arranged in the common cooling circuit (6), preferably the power electronics (9 ) in the common cooling circuit (6) upstream of the electrical machines (2, 3) is arranged.
    公开号:AT512492A1
    申请号:T500112012
    申请日:2012-01-24
    公开日:2013-08-15
    发明作者:Gernot Fuckar；Helmut Dipl Ing Melde-Tuczai
    申请人:Avl List Gmbh；
    IPC主号:
    专利说明:

    HK 1 56335
    The invention relates to an electric drive unit, in particular for a motor vehicle, having at least two liquid-cooled electrical machines, which are arranged in each case a coolant branch of a common cooling circuit of a cooling system and can be flowed through in parallel by coolant, wherein in the common cooling circuit, preferably upstream of the electrical machines, a coolant pump is arranged.
    DE 10 2005 024 827 A1 describes a drive unit of a motor vehicle having at least one internal combustion engine for propulsion of the motor vehicle, and a cooling device for ensuring demand-driven cooling of a drive unit. The cooling device has at least one coolant circuit, in which at least one coolant pump is arranged, wherein the coolant pump has a coupling with the internal combustion engine and at least one electric motor. From DE 10 2005 024 827 Al it is known to cool a power electronics and an electric machine.
    Furthermore, it is known from JP 2003 087 908 A2 to cool two of the electric motors in parallel in a divided cooling circuit.
    Furthermore, it is known from DE 41 42 863 C2 to use a common power electronics for several electric motors.
    The object of the invention is to ensure a sufficient manner in a drive unit of the type mentioned sufficient cooling.
    According to the invention, it is achieved that at least one power electronics is arranged in the common cooling circuit, wherein preferably the power electronics is arranged in the common cooling circuit upstream of the electrical machines. The power electronics can be arranged in the common cooling circuit between the coolant pump and the electrical machines.
    In a particularly parts and space-saving embodiment of the invention, it is provided that a common power electronics controls the at least two electric machines
    In order to enable optimal cooling of the electrical machines with the least possible construction costs, it is particularly advantageous if at least one distribution valve is arranged downstream of the power electronics and upstream of the electrical machines in the cooling circuit, which distributes the coolant flow in each leading to an electrical machine coolant branches, said preferably downstream of the electrical machines, the coolant branches of the electric machines combine to form a common coolant flow path.
    As an alternative to common power electronics, power electronics may be provided for each electrical machine, the distribution valve downstream of the coolant pump and upstream of the power electronics in the cooling circuit may be arranged to divide the coolant flow in each leading to a power electronics and an electric machine coolant branches.
    A particularly compact construction results when the electrical machines, the power electronics, preferably also the cooling system, are arranged in a common housing.
    The invention will be explained in more detail below with reference to FIG.
    1 shows an inventive electric drive unit in a first embodiment and FIG. 2 shows an inventive electric drive unit in a second embodiment variant.
    The figures schematically show a drive unit 1 for a motor vehicle, for example an electric vehicle or a hybrid vehicle, the drive unit 1 having a first electric machine 2 and a second electric machine 3. Each electric machine 2, 3 has a rotor 2a, 3a and a coolant-cooled stator 2b, 3b. Each rotor 2a, 3a may be connected, for example, each with a drive shaft of the motor vehicle, not shown. For cooling each stator 2b, 3b, a cooling jacket 4, 5 is provided around each stator 2b, 3b, each cooling jacket 4, 5 belonging to a common cooling circuit 6 of a cooling system K. The two cooling jackets 4, 5 are arranged hydraulically in parallel in the cooling circuit 6. The cooling circuit 6 has a common coolant pump 7, which can be made electrically adjustable 3. In the cooling circuit 6, the cooling jacket 8 is further arranged in FIG. 1 for both electric machines 2, 3 common power electronics 9, wherein in the embodiment of FIG. 1, the power electronics 9 in the common cooling circuit 6 between the coolant pump 7 and the two electric machines 4, 5 is provided.
    In the embodiment shown in Fig. 1, downstream of the cooling jacket 8 of the power electronics 9 in the cooling circuit 6, a distribution valve 14 is arranged, which may be formed for example as a three-way valve. With the distribution valve 14, the quantities of coolant supplied via coolant branches 10a, 11a to the cooling jackets 4, 5 of the electrical machines 2, 3 can be controlled.
    As shown in FIG. 2, a separate power electronics 9 can be provided for each electric machine 2, 3 as an alternative to a common power electronics, the distributor valve 14 in this case being arranged downstream of the coolant pump 7 and upstream of the two power electronics 9 in the cooling circuit 6 may be to divide the coolant flow in each of a power electronics 9 and an electric machine 2, 3 leading coolant branches 10 a, 10 b.
    Downstream of the cooling jackets 4, 5 of the two electric machines 2, 3, the return runners 10 b, 11 b combine to form a common return line 12, which leads to the coolant pump 7.
    The power electronics 9 or the power electronics 9 for the two electrical machines 2, 3 is or are installed in a common housing 13. This has the advantage that all parts of the power electronics 9 to be cooled can be supplied by a common coolant pump 7. The distribution to the individual electric machines 2, 3 is regulated via the distributor valve 14. In the figures, the Verteilerventi! 14 downstream or upstream of the power electronics 9 and the power electronics 9 shown. The distribution valve 14 may alternatively be installed in the power electronics 9 but also.
    Thus, both electric machines, 4, 5 parallel pump with coolant through a single coolant 7 can be supplied.
    权利要求:
    Claims (8)
    [1]
    4 PATENT CLAIMS 1. Electric drive unit (1), in particular for a motor vehicle, with at least two liquid-cooled electrical machines (2, 3), which in each case a coolant branch (10a, Ha) of a common cooling circuit (6) of a cooling system (K) arranged and parallel flowed through by coolant, wherein in the common cooling circuit (6), preferably upstream of the electric machines (2, 3), a coolant pump (7) is arranged, characterized in that in the common cooling circuit (6) at least one power electronics (9 ), wherein preferably the power electronics (9) in the common cooling circuit (6) upstream of the electrical machines (2, 3) is arranged.
    [2]
    2. Drive unit (1) according to claim 1, characterized in that the power electronics (9) in the common cooling circuit (6) between the coolant pump (7) and the electrical machines (2, 3) is angeondnet.
    [3]
    3. Drive unit (1) according to claim 1 or 2, characterized in that a common power electronics (9) which controls at least two electric machines (2, 3).
    [4]
    4. Drive unit (1) according to one of claims 1 to 3, characterized in that downstream of the power electronics (9) and upstream of the electrical machines (2, 3) in the cooling circuit (6) at least one distribution valve (14) is arranged, which the Coolant flow in each of an electrical machine (2, 3) leading coolant branches (10 a, 11 a) divides.
    [5]
    5. Drive unit (1) according to any one of claims 1 or 2, characterized in that for each electric machine (2, 3) power electronics (9) is provided, and that downstream of the coolant pump (7) and upstream of the power electronics (9) in the cooling circuit (6) at least one distribution valve (14) is arranged, which divides the coolant flow in each case to an electrical machine (2, 3) leading coolant branches (10a, lla). 5
    [6]
    6. Drive unit (1) according to one of claims 1 to 5; characterized in that downstream of the electrical machines (2, 3) the coolant branches (10a, 11a) of the electrical machines (2, 3) merge into a common coolant flow path (12).
    [7]
    7. Drive unit (1) according to one of claims 1 to 6, characterized in that the electrical machines (2, 3), the power electronics (9), preferably also the cooling system (K), in a common housing (13) are arranged ,
    [8]
    8. Drive unit (1) according to one of claims 1 to 7, characterized in that the rotational speed of the coolant pump (7) is electrically controllable. 2012 01 24 Fu / Bt
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    同族专利:
    公开号 | 公开日
    JP2015506661A|2015-03-02|
    WO2013110677A3|2014-01-23|
    WO2013110677A2|2013-08-01|
    AT512492B1|2014-12-15|
    DE112013000678A5|2014-10-23|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE102005003881A1|2005-01-24|2006-07-27|Volkswagen Ag|Hybrid drive unit cooling controlling method for hybrid vehicle, involves controlling electrical input of coolant pump based on temperature of electrical engine and/or electronic devices formed in engine|
    DE102007017172A1|2007-04-12|2008-10-16|Bayerische Motoren Werke Aktiengesellschaft|Cooling system for cooling e.g. battery of hybrid vehicle, has cooling circuit formed such that circulating direction of medium is reversible after time interval or in accordance to regulation based on temperature of cooling-needy unit|
    DE102009051377A1|2009-10-30|2011-05-05|Bayerische Motoren Werke Aktiengesellschaft|Drive for a hybrid vehicle|EP3769988A1|2019-07-24|2021-01-27|Volkswagen Ag|Cooling circuit|DE4142863C2|1991-10-16|1996-03-07|Mannesmann Ag|Braking device for a non-track-bound vehicle|
    KR940010453A|1992-10-01|1994-05-26|가나이 쯔도무|Electric motor cooling system and electric motor used for this|
    JP3508202B2|1994-04-11|2004-03-22|株式会社デンソー|Motor for driving vehicle|
    JPH0998553A|1995-10-03|1997-04-08|Mitsubishi Motors Corp|Cooler for motor|
    JPH1014287A|1996-06-26|1998-01-16|Meidensha Corp|Method for controlling electric vehicle|
    JP3886696B2|1999-04-27|2007-02-28|アイシン・エィ・ダブリュ株式会社|Drive device|
    JP4788088B2|2001-09-12|2011-10-05|トヨタ自動車株式会社|Electric vehicle motor unit|
    DE10222102A1|2002-05-17|2003-11-27|Basf Ag|A method for cooling combustion engines, involves using a circulating coolant fluid which contains non-ionic corrosion inhibitors and is at least intermittently de-ionized|
    JP2005117819A|2003-10-09|2005-04-28|Toshiba Corp|Power conversion device for electric vehicle|
    DE102005024827A1|2005-05-27|2006-11-30|Fev Motorentechnik Gmbh|Mechatronic coolant pump drive connection|
    JP4665911B2|2007-02-07|2011-04-06|トヨタ自動車株式会社|Cooling system|
    JP4183014B1|2007-05-28|2008-11-19|トヨタ自動車株式会社|Motor insulation protection device and vehicle having the same|
    DE102007062096A1|2007-12-21|2009-06-25|Siemens Ag|Aggregate e.g. climatic compressor, driving device for e.g. passenger car, has cooling device cooling engine, and another engine that stands in thermal contact with sections of cooling circuit|
    JP2010081787A|2008-08-25|2010-04-08|Suri-Ai:Kk|Motor with concentrated winding|
    JP2011109765A|2009-11-16|2011-06-02|Toyota Motor Corp|Rotating electrical machine cooling system|
    JP2012244753A|2011-05-19|2012-12-10|Toyota Motor Corp|Electric machine unit|CA2891753A1|2014-06-05|2015-12-05|Liebherr-Mining Equipment Colmar Sas|Work machine, in particular dump truck or truck|
    US9853523B2|2015-08-29|2017-12-26|Fairfield Manufacturing Company, Inc.|Wheel motor cooling system with equally divided flow|
    DE102015225644A1|2015-12-17|2017-06-22|Schaeffler Technologies AG & Co. KG|Thermal management system for an electric drive system, preferably for a vehicle|
    DE102018215921A1|2018-09-19|2020-03-19|ZF DrivetechCo.Ltd.|Drive device for the electric drive of a motor vehicle with two electric drive units and with a cooling device for these drive units|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50011/2012A|AT512492B1|2012-01-24|2012-01-24|ELECTRIC DRIVE UNIT|ATA50011/2012A| AT512492B1|2012-01-24|2012-01-24|ELECTRIC DRIVE UNIT|
    JP2014553704A| JP2015506661A|2012-01-24|2013-01-24|Electric drive|
    PCT/EP2013/051271| WO2013110677A2|2012-01-24|2013-01-24|Electric drive unit|
    DE201311000678| DE112013000678A5|2012-01-24|2013-01-24|Electric drive unit|
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