CN105703524A - Motor vehicle in-wheel motor with liquid cooling system and motor vehicle - Google Patents
Motor vehicle in-wheel motor with liquid cooling system and motor vehicle Download PDFInfo
- Publication number
- CN105703524A CN105703524A CN201410683393.0A CN201410683393A CN105703524A CN 105703524 A CN105703524 A CN 105703524A CN 201410683393 A CN201410683393 A CN 201410683393A CN 105703524 A CN105703524 A CN 105703524A
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- coolant jacket
- muscle structure
- motor
- electric machine
- cover plate
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Abstract
The invention relates to a motor vehicle in-wheel motor with a liquid cooling system and a motor vehicle. The in-wheel motor comprises a motor casing, a cover plate, an inner rotor motor and a cooling liquid sleeve; the inner rotor motor is in interference fit with or is nested in the radial interior of the cooling liquid sleeve; the cooling liquid sleeve is arranged in the motor casing and is fixedly connected with the motor casing; a cooling liquid flowing space is formed between the cooling liquid sleeve and the motor casing by means of a circumferential sealing ring; the cover plate is fixed to the motor casing by bolts; the outer surface of the cooling liquid sleeve is provided with axial rib structures; the inner surface of the motor casing is provided with grooves corresponding to the rib structures; and the cooling liquid sleeve and the motor casing maintain fixed by means of interference fit at the rib structures and the grooves. According to the motor vehicle in-wheel motor of the invention, the fixation of the cooling liquid sleeve is not realized by bolts, so that the outer radial space of the casing can be increased, and positioning and sealing of the motor casing and the box cover can be facilitated; and the cooling liquid sleeve is fixed through the rib structures, and therefore, the cooling liquid sleeve can be completely located in the casing, and the sealing of the cooling liquid sleeve can be benefitted.
Description
Technical field
The present invention relates to a kind of motor-car wheel hub motor, especially a kind of wheel hub motor with liquid cooling system, and apply the motor vehicles of this wheel hub motor。
Background technology
Wheel hub motor technology is also known as wheel inner electric machine technology, it is that the motor being used for driving automobile is placed in the technology within wheel rim, outside wheel hub, power, transmission and brake unit are all incorporated in wheel hub by its maximum feature exactly, are therefore greatly simplified by the mechanical part of electric vehicle。The automobile of general four-wheel can dispose a wheel hub motor respectively in four wheels, and owing to space is limit, the heat produced in motor work is often difficult to dissipate voluntarily but, it is necessary to special cooling system coordinates。Liquid cooling system, owing to radiating efficiency is higher than air cooling system, is used comparatively general。
Coolant jacket 20 in existing wheel hub motor is as shown in Figure 1, coolant jacket 20 and electric machine casing 10 adopt radial arrangement fastening bolt fixed form as shown in Figure 2, owing to needing the outer rim at coolant jacket to increase bolt hole 30, cause that the overall shared radial space of coolant jacket 20 is bigger, and radially fastening bolt 40 takies electric machine casing 10 space, with need also exist for producing to intersect (bolt fastening structure not showing electric machine casing 10 and cover plate 90 in figure) with the bolted cover plate 90 of electric machine casing 10, affect housing mould assembling bolt to arrange, cause cover plate 90 location difficulty and be unfavorable for the sealing of casing when mould assembling is installed。
Accordingly, it is desirable to provide the wheel hub motor coolant jacket of a kind of fixed structure more succinctly and still keeping original effect with improvement is to solve the problems referred to above。
Summary of the invention
The liquid cooling system fixed structure that the problem that this invention address that is wheel hub motor is excessively complicated, is taken up space excessive。
For solving the problems referred to above, the present invention provides a kind of Vehicular hub motor with liquid cooling system, including electric machine casing, cover plate, inner rotor motor and coolant jacket, wherein said inner rotor motor interference fit or be nestedly arranged on described coolant jacket inner radial, described coolant jacket is secured to connect inside described electric machine casing, and between described coolant jacket and described electric machine casing, constitute coolant flow space by circumferential seal circle, described cover plate and described electric machine casing are bolted, the outer surface of described coolant jacket has axial muscle structure, the inner surface of described electric machine casing has the groove corresponding with described muscle structure, described coolant jacket and described electric machine casing adopt the interference fit in muscle structure and groove to keep fixing。
Alternatively, described coolant jacket axially compresses with described cover plate, and end face along coolant jacket has end-face seal ring between described coolant jacket and described cover plate。
Alternatively, described muscle structure is arranged on the nearly cover plate end of described coolant jacket outer surface。
Alternatively, described muscle structure is additionally arranged at the remote cover plate end of described coolant jacket outer surface, described electric machine casing has thickened section at the correspondence position of the muscle structure of remote cover plate end, and described groove is arranged on thickened section inner surface, and its radial depth is less than the radial thickness of described thickened section。
Alternatively, described muscle structure is provided only on the remote cover plate end of described coolant jacket outer surface, described electric machine casing has thickened section at the correspondence position of described muscle structure, and described groove is arranged on thickened section inner surface, and its radial depth is less than the radial thickness of described thickened section。
Alternatively, described muscle structure is arranged in described coolant flow space, described electric machine casing has thickened section at the correspondence position of described muscle structure, described groove is arranged on thickened section inner surface, the radial height of described muscle structure needs according to coolant drain more than described depth of groove, the position of described muscle structure and axial length and arranges。
In the above-mentioned wheel hub motor with liquid cooling system provided by the present invention, position set by described muscle structure and described groove can exchange, namely muscle structure is arranged on shell inner surface, and groove is arranged on coolant jacket outer surface, still can reach the effect that above-mentioned design is similar。
Present invention also offers a kind of motor vehicles applying above-mentioned wheel hub motor simultaneously。
Compared with prior art, the invention have the advantages that in the present invention, the fixing bolt that eliminates of coolant jacket is arranged, hull outside radially free space increases, and more convenient electric machine casing mould assembling lid positions and seals；And owing to being fixed by muscle structure, coolant jacket is fully located at enclosure interior, without stretching out outer rim, is conducive to the sealing of coolant jacket；And the assembling of motor coolant jacket is simple, it is directly embedded in electric machine casing groove and forms interference fit。
Accompanying drawing explanation
Fig. 1 is the longitudinal section view of wheel hub motor coolant jacket in prior art；
Fig. 2 is the axial, cross-sectional view of wheel hub motor in prior art；
Fig. 3 is the axial, cross-sectional view of wheel hub motor in the present invention；
Fig. 4 is the radial section schematic diagram of the coolant jacket of wheel hub motor shown in Fig. 3；
Fig. 5 is the axonometric chart of the wheel hub motor coolant jacket of first embodiment of the invention；
Fig. 6 is the axonometric chart of the wheel hub motor housing of first embodiment of the invention；
Fig. 7 is the schematic diagram of the wheel hub motor coolant jacket of first embodiment of the invention；
Fig. 8 is the partial enlarged drawing of the wheel hub motor of first embodiment of the invention；
Fig. 9 is the schematic diagram of the wheel hub motor coolant jacket of second embodiment of the invention；
Figure 10 is the partial enlarged drawing of the wheel hub motor of second embodiment of the invention；
Figure 11 is the schematic diagram of the wheel hub motor coolant jacket of third embodiment of the invention；
Figure 12 is the schematic diagram of the wheel hub motor coolant jacket of fourth embodiment of the invention。
Detailed description of the invention
As it is shown on figure 3, the wheel hub motor of the present invention includes motor housing 1, coolant jacket 2, stator 8 and rotor, wherein coolant jacket 2 and stator 8 are assembled into one by hot cover process, together load housing 1 when assembling and are fixed。Realizing interference fit by nesting motor housing 1 and coolant jacket 2 are fixed together, finally compressed by cover plate 9, cover plate 9 is fixed with electric machine casing 1 bolt 4。Two sealing rings are arranged on coolant jacket side face, are compressed by coolant jacket 2 and electric machine casing 1 and are used for sealing coolant, and another sealing ring is arranged on coolant jacket 2 end face, is compressed by coolant jacket 2 and cover plate 9。As shown in Figure 4, in the present invention, coolant jacket 2 is provided with muscle structure 6。Electric machine casing 1 is provided with the groove structure matched with described muscle structure 6。
The first embodiment of the present invention is such as shown in Fig. 5 to Fig. 8。The axial both sides of coolant jacket 21 are smooth circular, do not have for fixing screw, and the nearly cover plate end of outer surface of described coolant jacket 21 is provided with muscle structure 61, as shown in Figure 5。The inner surface of electric machine casing 11 is provided with the groove 71 corresponding with described muscle structure, as shown in Figure 6。As it is shown in fig. 7, the outer surface of described coolant jacket 21 is additionally provided with two circumferential seal circles 31, for limiting the flow range of coolant in the axial direction。As shown in Figure 8, the radial height of described muscle structure 61 is more than the radial depth of described groove 71, described coolant jacket 31 and the housing 11 contact position interference fit at muscle structure 61 and groove 71, a circumferential space is formed at non-contacting position, described circumferential seal circle 31 is cooled the extruding of liquid set 21 and electric machine casing 11 in described coolant flow space and deforms upon, thus constituting coolant flow space。One cover plate 91 is fixed by bolt 41 with the side of described electric machine casing 11 vertically, arranges an end-face seal ring 31 ' along coolant jacket end face between described cover plate 91 and described coolant jacket 21。
The second embodiment of the present invention is as shown in Figure 9 and Figure 10。With first embodiment the difference is that described muscle structure 62 is arranged on the remote cover plate end of outer surface of described coolant jacket 22, as shown in Figure 9。And, as shown in Figure 10, described electric machine casing 12 and muscle structure 62 correspondence position are provided with the thickened section 82 of annular, and the axial length of described thickened section 82 can be suitable with the length of muscle structure 62, groove 72 is arranged on described thickened section 82 inner surface, and the degree of depth is less than the radial thickness of thickened section 82。
The third embodiment of the present invention is as shown in figure 11, described coolant jacket 23 has the nearly cover plate side muscle structure 63 such as first embodiment and such as the remote cover plate side muscle structure 63 ' of the second embodiment simultaneously, and the groove corresponding with muscle structure that described electric machine casing has such as the one the second embodiments simultaneously is arranged。
The fourth embodiment of the present invention is as shown in figure 12, and the second embodiment is arranged between the first sealing ring and the second sealing ring the difference is that described muscle structure 64, within being positioned at described coolant flow space due to described muscle structure 64, may also operate as the effect to coolant drain after fixation, therefore the length of muscle structure 64 and position can be adjusted according to different drain purposes。
Although the present invention is described as far as some exemplary embodiment, these descriptions should be only used as example and not be construed as limiting。In the scope that appended claims is recorded, without departing from spirit and scope of the invention situation, various changes are equally possible。
Claims (8)
1. a Vehicular hub motor with liquid cooling system, including electric machine casing (1), cover plate (9), inner rotor motor and coolant jacket (2), wherein said inner rotor motor interference fit or be nestedly arranged on described coolant jacket (2) inner radial, described coolant jacket (2) connects internal being secured to of described electric machine casing (1), and between described coolant jacket (2) and described electric machine casing (1), constitute coolant flow space by circumferential seal circle (31), described cover plate (9) and described electric machine casing (1) are bolted, it is characterized in that, the outer surface of described coolant jacket (23) has axial muscle structure (6), the inner surface of described electric machine casing (1) has the groove corresponding with described muscle structure (6), described coolant jacket (2) and described electric machine casing (1) adopt the interference fit in muscle structure (6) and groove to keep fixing。
2. there is the Vehicular hub motor of liquid cooling system as claimed in claim 1, it is characterized in that: described coolant jacket (2) is axially compressed by described cover plate (9), and end face along coolant jacket has end-face seal ring (31 ') between described coolant jacket (2) and described cover plate (9)。
3. there is the Vehicular hub motor of liquid cooling system as claimed in claim 2, it is characterised in that: described muscle structure (6) is arranged on the nearly cover plate end of described coolant jacket (2) outer surface。
4. there is the Vehicular hub motor of liquid cooling system as claimed in claim 2, it is characterized in that: described muscle structure (6) is arranged on the remote cover plate end of described coolant jacket outer surface, described electric machine casing has thickened section at the correspondence position of described muscle structure, described groove is arranged on thickened section inner surface, and its radial depth is less than the radial thickness of described thickened section。
5. there is the Vehicular hub motor of liquid cooling system as claimed in claim 3, it is characterized in that: described muscle structure (6) is additionally arranged at the remote cover plate end of described coolant jacket outer surface, described electric machine casing has thickened section at the correspondence position of described remote cover plate end muscle structure, described groove is arranged on thickened section inner surface, and its radial depth is less than the radial thickness of described thickened section。
6. there is the Vehicular hub motor of liquid cooling system as claimed in claim 2, it is characterized in that: described muscle structure is arranged in described coolant flow space, described electric machine casing has thickened section at the correspondence position of described muscle structure, described groove is arranged on thickened section inner surface, the radial height of described muscle structure needs according to coolant drain more than described depth of groove, the position of described muscle structure and axial length and arranges。
7. the arbitrary Vehicular hub motor with liquid cooling system as described in claim 1 to 6, it is characterized in that: described muscle structure (6) is arranged on described housing (1) inner surface, and described groove is arranged on described coolant jacket (2) outer surface。
8. motor vehicles, it is characterised in that apply the Vehicular hub motor with liquid cooling system described in any of the above-described claim。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410683393.0A CN105703524A (en) | 2014-11-24 | 2014-11-24 | Motor vehicle in-wheel motor with liquid cooling system and motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410683393.0A CN105703524A (en) | 2014-11-24 | 2014-11-24 | Motor vehicle in-wheel motor with liquid cooling system and motor vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105703524A true CN105703524A (en) | 2016-06-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410683393.0A Pending CN105703524A (en) | 2014-11-24 | 2014-11-24 | Motor vehicle in-wheel motor with liquid cooling system and motor vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105703524A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017045478A1 (en) * | 2015-09-14 | 2017-03-23 | 舍弗勒技术股份两合公司 | Coolant sleeve and fixing device thereof and electric machine |
| CN106887919A (en) * | 2017-04-07 | 2017-06-23 | 宁波菲仕自动化技术有限公司 | Split type fluid-cooled electrical machine shell and motor |
| CN110649746A (en) * | 2018-06-27 | 2020-01-03 | 中车株洲电力机车研究所有限公司 | Motor frame for electric automobile |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080185924A1 (en) * | 2007-02-01 | 2008-08-07 | Honeywell International Inc. | Electric motor cooling jacket |
| US20090096300A1 (en) * | 2007-10-15 | 2009-04-16 | Oyoung Shioping P | Light weight low cost motor housing and cooling fin assembly |
| CN101951069A (en) * | 2010-09-09 | 2011-01-19 | 上海中科深江电动车辆有限公司 | Cooling water channel structure for motor casing |
| CN102969827A (en) * | 2012-11-07 | 2013-03-13 | 重庆红宇精密工业有限责任公司 | High power density permanent magnet synchronous motor with radiator |
| CN203416115U (en) * | 2013-08-19 | 2014-01-29 | 宁波鲍斯能源装备股份有限公司 | Motor cooling device of refrigeration compressor |
-
2014
- 2014-11-24 CN CN201410683393.0A patent/CN105703524A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080185924A1 (en) * | 2007-02-01 | 2008-08-07 | Honeywell International Inc. | Electric motor cooling jacket |
| US20090096300A1 (en) * | 2007-10-15 | 2009-04-16 | Oyoung Shioping P | Light weight low cost motor housing and cooling fin assembly |
| CN101951069A (en) * | 2010-09-09 | 2011-01-19 | 上海中科深江电动车辆有限公司 | Cooling water channel structure for motor casing |
| CN102969827A (en) * | 2012-11-07 | 2013-03-13 | 重庆红宇精密工业有限责任公司 | High power density permanent magnet synchronous motor with radiator |
| CN203416115U (en) * | 2013-08-19 | 2014-01-29 | 宁波鲍斯能源装备股份有限公司 | Motor cooling device of refrigeration compressor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017045478A1 (en) * | 2015-09-14 | 2017-03-23 | 舍弗勒技术股份两合公司 | Coolant sleeve and fixing device thereof and electric machine |
| US10468939B2 (en) | 2015-09-14 | 2019-11-05 | Schaeffler Technologies AG & Co. KG | Coolant sleeve and fixing device thereof and electric machine |
| CN106887919A (en) * | 2017-04-07 | 2017-06-23 | 宁波菲仕自动化技术有限公司 | Split type fluid-cooled electrical machine shell and motor |
| CN110649746A (en) * | 2018-06-27 | 2020-01-03 | 中车株洲电力机车研究所有限公司 | Motor frame for electric automobile |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20160622 |