• 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 machine (14), in particular for a power generating unit (40) for extending the range of an electric vehicle, comprising a cylindrical housing part (2b), in particular cast, for accommodating a stator (14a) and a rotor (13), in which housing part (FIG. 2b) at least one of a cooling medium in a meandering flow through the cooling channel arrangement (51) is arranged. In order to achieve the best possible heat dissipation in the simplest possible way, it is provided that the cooling channel arrangement (51) has a plurality of substantially parallel cooling chambers (51a) extending in the axial direction of the electric machine (14), which at least one first end face (51). 33) of the housing part (2b) are open, wherein each cooling chamber (51a) is bounded by walls (51a '), wherein in at least one cooling chamber (51a) from the first end face (33) forth to the walls (51a') spaced deflecting device (57) is introduced.
    公开号:AT510446A4
    申请号:T1911/2010
    申请日:2010-11-18
    公开日:2012-04-15
    发明作者:Gernot Fucker；Aldo Dipl Ing Fh Bregant；Andreas Dipl Ing Fh Nimmervoll；Robert Berger
    申请人:Avl List Gmbh；
    IPC主号:
    专利说明:

    - 1 - 56087
    The invention relates to an electric machine, in particular for a power generating unit for range expansion of an electric vehicle, with a cylindrical housing part, in particular cast technology, for receiving a stator and a rotor, in which housing part at least one cooling channel arrangement through which a cooling medium flows meander-shaped.
    DE 100 22 146 A1 describes a stator with cooling tubes for an electric machine with a rotating inner rotor, which stator has at least one electric laminated core and a plurality of cooling tubes arranged by casting, wherein the cooling tubes are embedded in at least one cast body formed by casting thermally conductive material, the abuts the laminated core and / or is covered by this.
    A cast molded part of an electric motor is known from EP 0 899 852 A1. In this case, a stator housing of an electric motor is formed as a cast molding with at least one axially continuous, outside the direct connection of the two end sides of the stator housing extending and / or with at least one meandering or wavy in the axial direction housing inner fin.
    Furthermore, from DE 101 31 119 Al an electric motor with a cooling coil is known, which is meander-shaped as a sheet-like structure and consists of good heat-conducting material and deflections made of plastic.
    In particular, in a die-cast aluminum housing produced housing parts a favorable for optimal heat removal meandering design of the cooling channels is hardly or very difficult to realize with increased casting costs,
    The object of the invention is to avoid these disadvantages and to achieve optimal cooling in an electric machine in the simplest possible way.
    According to the invention this is achieved in that the cooling channel arrangement comprises a plurality of substantially parallel, preferably in the axial direction of the electric machine extending, preferably mitgegossene cooling chambers, which are open on at least a first end face of the housing part, each cooling chamber through, preferably itself is substantially limited in the axial direction, walls is limited, and that in at least one cooling chamber from the first end face a deflected to the walls deflection device is inserted. - 2 - 1
    Preferably, the deflection device is formed by a plug and / or a guide element.
    The deflection devices consisting of plugs or guide ribs can be pushed into the cooling chambers in the axial direction in order to allow a meandering deflection of the coolant.
    It when the deflection is arranged detachably in the cooling chamber, wherein preferably the walls are spaced in the axial direction of the end face is particularly advantageous.
    In order to achieve a sufficient cooling effect, deflecting devices can be arranged in at least two adjacent cooling chambers.
    In the context of the invention may further be provided that the deflection device is inserted into a arranged in the region of the front side receiving opening of the housing part, wherein preferably the housing part is frontally coverable by a cover part, and wherein the deflecting device may be arranged in the cover part. In this case, the deflection can be releasably secured in the cover part or mitgegossen with this.
    A simple production is made possible when the cooling chambers are flow-connected with a cooling space formed annularly in the region of the first end side between an initial region and an end region, wherein at least one deflection device preferably crosses the cooling chamber in the axial direction. The annular space can be arranged in the housing part or in the cover part.
    The cooling effect or the flow through the individual cooling chambers can be adapted to the respective requirements by varying the cross sections and / or the axial extent of the deflection devices. Furthermore, a reduced heat dissipation can be achieved if a deflection device is not arranged in each cooling chamber, but only in thermally critical regions of the cooling channel arrangement.
    A particularly good cooling effect can be achieved if the deflection device forms a detaching edge in the region of an end facing the cooling chamber, wherein a flow cross section defined between the detachment edge and a wall bottom of the cooling chamber is preferably larger than a flow cross section in the annularly formed cooling space. This leads to flow separation and a turbulent flow, which supports the heat transfer.
    The invention will be explained in more detail below with reference to FIGS.
    2 shows a cylindrical housing part in a section along the line II - II, Fig. 3 shows the cylindrical housing part in an end view, Fig. 4 and 5 an electric side cooling channel arrangement in each case an oblique view, Fig. 6 shows the cylindrical housing part in an oblique view and Fig. 7 shows the cylindrical housing part in a further oblique view.
    Fig. 1 shows a power generation unit 40 (range extender), in particular for range expansion of an electric vehicle, wherein in a housing 2, a rotary piston internal combustion engine 1 and an example, permanent magnet excited electric machine 14 is arranged. The housing 2 has a chamber 3, in which a rotary piston 4 along a trochoidenförmigen running surface 5 of the housing 2 is arranged circumferentially. The chamber 3 is formed by the trochoidal tread 5 and by lateral treads 6, 7. The housing 2 has a trochoidal tread 5 forming the central housing part 2a and lateral housing parts 2b and 2c and in the embodiment, the central housing part 2a limiting side plates 8, 9.
    In each of the housing parts 2b, 2c, an eccentric shaft 10, which is arranged in an inner housing space 15 and is driven by the rotary piston 4, is rotatably mounted via bearings 11, 12 designed, for example, as roller bearings. Shaft equal to the eccentric shaft 10 of the rotor 13 of the same housing 2 arranged in the electric machine 14 is formed.
    The bearing housing 11 receiving lateral housing part 2b has a bell-shaped, cylindrical jacket portion 2b, which spans a substantially cylindrical interior 15a, in which the rotor 13, and the stator 14a of the electric machine 14 is arranged. The cylindrical interior 15a is closed by a in Fig. 1 adjoining the housing part 2b lid part 2d.
    The electric machine 14 and the rotary piston internal combustion engine 1 have a common cooling system 50, wherein the cooling channel arrangements 51, 52, 53, 54 provided in the housing parts 2d, 2b, 2a and 2c are flowed through in succession. Thus, in succession, the electric machine 14 and then the rotary piston internal combustion engine 1 are cooled. A cooling space 51b of the electro-side cooling channel arrangement 51 which is annularly formed between an initial region 55 and an end region 56 may in this case be formed partly by the cover part 2d and partly by the cylindrical housing part 2b. - 4 -
    In the housing part 2b, a number of cooling chambers 51a extending in the direction of the axis 10a of the eccentric shaft 10 are arranged in the region of the electric machine 14, which is fluidly connected to the annular cooling space 51b in the region of the end face 33 of the housing part 2b.
    FIGS. 2 to 5 schematically show an electro-side cooling channel arrangement 51 of the housing part 2b, with the coolant entering into the cooling channel arrangement in the start region 55 and the coolant outlet in the end region 56 in the example. However, the coolant can also be in other locations of the coolant arrangement 51, for example In the region of a cooling chamber 51, approximately in the region of the piston-side end face 36 of the housing part 2b to be supplied and / or removed. With the exception of possible inlet, outlet or overflow openings into other housing areas, the cooling chambers 51a are essentially closed in the region of the piston-side end face 34, for example by casting or by a cover part, so that forced deflection is effected at the end of each cooling chamber 51a he follows.
    In Fig. 2, the end portion 56 is rotated in the sectional plane and down to illustrate the meander-shaped flow of the coolant indicated by the arrows.
    In order to enable an optimum for the cooling of the electric machine 14 meandering coolant flow in the stator 14a and the rotor 13 surrounding cylindrical jacket portion 2b 'of the housing part 2b, 51 are axially inserted into the cooling chambers 51a deflecting 57, which deflecting 57, for example, by plugs 57a, guide ribs or the like may be formed. The deflection devices 57 are inserted, for example, in co-molded axial receptacles 37 in the annular cooling space 51b. Alternatively, it is also possible, the deflecting means 57 in the lid part 2d detachable or non-detachable - for example, by pouring - to order.
    By means of the deflection devices 57, the coolant flowing in the circumferential direction into the annular cooling space 51c is deflected in the direction of the axis 10a into the cooling spaces 51a and returned to the cooling space 51 along the walls 51a ', where it passes through the next deflection 57 into the next cooling chamber is distracted. As a result of this loop-like movement of the coolant, the cooling region of the housing part 2b which is decisive for the electric machine 14 is uniformly cooled, wherein a fine-tuning of the heat dissipation can take place by changing the cross section and / or the length of the deflection devices 57. The deflecting means 57 may for example consist of plastic or the like. - 5 - 1
    In Fig. 5, flow lines of the refrigerant flow in the loop-like annular space 51c are shown. The deflecting devices 57 are only relatively small, ie by an extent which is approximately the axial extent of the annular space 51b, inserted into the cooling chambers 51a. The deflecting device 57 forms a detaching edge 57a, wherein a between detaching edge 57a and wall bottom 51a " the cooling chamber 51a defined flow cross section is greater than a flow cross-section in the annular cooling space 51b. As can be seen, this results in the cooling chambers 51a to flow separation and Verwirbelungserscheinungen, which can be improved in these areas of heat transfer.
    The deflection devices 57, which can be moved into the annular cooling spaces 51, allow a meandering coolant flow in the housing part 2b surrounding the electric machine 14, and thus the best possible heat dissipation, in a way that is very simple in terms of manufacture.
    权利要求:
    Claims (13)
    [1]
    1. Electric machine (14), in particular for a power generating unit (40) for range extension of an electric vehicle, with a cylindrical housing part (2b), in particular cast, for receiving a stator (14a) and a rotor (13) which Gehäuseteii (2b) at least one of a cooling medium meandering flow through cooling channel arrangement (51) is arranged, characterized in that the cooling channel arrangement (51) a plurality of substantially parallel, substantially in the axial direction of the electric machine (14) extending, preferably mitgegossenene , Cooling chambers (51a) which are open on at least a first end face (33) of the housing part (2b), wherein at least one cooling chamber (51a) is bounded by walls (51a '), preferably extending substantially in the axial direction, and that in at least one cooling chamber (51) from the first end face (33) ago one to The deflecting device (57) spaced apart from the walls (51a ') is introduced, preferably inserted.
    [2]
    2. Electrical machine (14) according to claim 1, characterized in that the deflection device (57) by a plug (57 a) and / or a guide element is formed.
    [3]
    3. Electrical machine (14) according to claim 1 or 2, characterized in that the deflection device (57) is detachably arranged in the cooling chamber (51 a).
    [4]
    4. Electrical machine (14) according to any one of claims 1 to 3, characterized in that the walls (51 a ') in the axial direction from the first end face (33) are spaced.
    [5]
    5. Electrical machine (14) according to any one of claims 1 to 4, characterized in that the deflection device (57) in a in the region of the first end face (33) arranged receptacle (37) of the housing part (2b) is inserted.
    [6]
    6. Electrical machine (14) according to one of claims 1 to 5, characterized in that the housing part (2b) in the region of the first end face (33) by a cover part (2d) can be covered, wherein preferably the deflection device (57) in the cover part (2d) is arranged.
    [7]
    7. Electrical machine (14) according to claim 6, characterized in that the deflection device (57) with the cover part (2d) is cast in the same. - 7 -
    [8]
    8. Electrical machine (14) according to one of claims 1 to 7, characterized in that the cooling chambers (51a) with a in the region of the first end face (33) between an initial region (55) and an end region (56) annularly formed cooling space ( 51b), wherein preferably at least one deflection device (57) traverses the cooling space (51b) in the axial direction.
    [9]
    9. Electrical machine (14) according to one of claims 1 to 8, characterized in that in each case a deflection device (57) is arranged in at least two adjacent cooling chambers (51 a).
    [10]
    10. Electrical machine (14) according to one of claims 1 to 9, characterized in that at least two deflection means (57) have different cross sections and / or axial extent.
    [11]
    11. Electrical machine (14) according to one of claims 1 to 10, characterized in that the deflecting device (57) forms a detaching edge (57a), preferably between a detaching edge (57a) and bottom wall (51a ") of the cooling chamber (51a). defined flow cross section is greater than a flow cross-section in the annular cooling space (51b).
    [12]
    12. Electrical machine (14) according to any one of claims 1 to 11, characterized in that the cooling chambers (51a) in the region of the deflecting remote from the second end face (34) of the housing part (2b) are designed substantially and / or predominantly closed.
    [13]
    13. Generating unit (40), in particular for range expansion of an electric vehicle, with an electric machine (14) according to one of claims 1 to 12, wherein the electric machine (14) corrugated with an internal combustion engine, in particular a rotary piston internal combustion engine (1) in a common housing (2) is arranged. 2010 11 18 Fu / St Patent Attorney G, $ -eng. Mag. Michael Bäbeluk »0 Vienna, MnrUhHf« r «artet 39/17 r / .ä 11 B &. m 33-0 Fes: MS 1) ^ 0e 333 I
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    同族专利:
    公开号 | 公开日
    AT510446B1|2012-04-15|
    WO2012066069A2|2012-05-24|
    EP2641318A2|2013-09-25|
    WO2012066069A3|2013-01-10|
    JP2013543369A|2013-11-28|
    CN103415982A|2013-11-27|
    US20130293041A1|2013-11-07|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE4104740A1|1990-02-26|1991-08-29|Valeo Equip Electr Moteur|Vehicle alternator cooling system - has feed and return connections for cooling fluid flow provided in common cover of alternator housing and container|
    JPH10225060A|1997-02-07|1998-08-21|Hitachi Ltd|Generator for vehicle and cooling device for vehicle|
    DE10141693A1|2001-08-25|2003-03-06|Bosch Gmbh Robert|Electrical machine, in particular generator for motor vehicles|
    JP2004194362A|2002-12-06|2004-07-08|Toyota Motor Corp|Cooler for motor|
    DE102005002897A1|2004-04-13|2005-11-10|Vem Motors Gmbh|Fluid cooled electric machine has cast iron housing with tubular cooling channels around the stator housing that are connected in series at the bearing plates|
    DE102005044834A1|2005-09-20|2007-03-22|Siemens Ag|Electrical machine e.g. DC machine, for use in rail-bound railway traction vehicle, has housing with cooling channels and connections that are connected with each other so that cooling medium flows through cooling channels|
    DE102007035271A1|2007-07-27|2009-01-29|Continental Automotive Gmbh|electric motor|
    CN101764454A|2008-12-10|2010-06-30|抚顺煤矿电机制造有限责任公司|Water cooling structure of motor|US20140103757A1|2012-10-16|2014-04-17|Larry Kubes|Electric machine housing|JPH10210702A|1995-12-06|1998-08-07|Fuji Electric Co Ltd|Refrigerant and cooling rotating electric machine|
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    DE10022146A1|2000-05-08|2001-11-15|Baumueller Nuernberg Gmbh|Stand with cooling tubes for an electrical machine and method for its production|
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    CN104320019B|2014-09-30|2016-07-06|佛山市川东磁电股份有限公司|A kind of hot power generating equipment of magnetic|
    DE102016209644A1|2016-06-02|2017-12-07|Zf Friedrichshafen Ag|Fluid channel arrangement for a cooling device, in particular for a cooling jacket of an electrical machine|
    CN106329806B|2016-09-05|2019-10-08|珠海格力电器股份有限公司|Motor case and driving motor|
    DE102017212798A1|2017-07-26|2019-01-31|Siemens Aktiengesellschaft|Electric motor with cooling device|
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    CN112610384A|2020-12-23|2021-04-06|重庆隆鑫通航发动机制造有限公司|Starting and launching all-in-one machine shell and starting and launching all-in-one machine|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA1911/2010A|AT510446B1|2010-11-18|2010-11-18|ELECTRICAL MACHINE|ATA1911/2010A| AT510446B1|2010-11-18|2010-11-18|ELECTRICAL MACHINE|
    CN2011800611546A| CN103415982A|2010-11-18|2011-11-17|Electric machine|
    JP2013539255A| JP2013543369A|2010-11-18|2011-11-17|Electric machine|
    EP11787829.8A| EP2641318B1|2010-11-18|2011-11-17|Electric machine|
    US13/988,341| US20130293041A1|2010-11-18|2011-11-17|Electric machine|
    PCT/EP2011/070335| WO2012066069A2|2010-11-18|2011-11-17|Electric machine|
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