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WO2018184328A1 - Système de refroidissement de moteur - Google Patents

Système de refroidissement de moteur Download PDF

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Publication number
WO2018184328A1
WO2018184328A1 PCT/CN2017/095238 CN2017095238W WO2018184328A1 WO 2018184328 A1 WO2018184328 A1 WO 2018184328A1 CN 2017095238 W CN2017095238 W CN 2017095238W WO 2018184328 A1 WO2018184328 A1 WO 2018184328A1
Authority
WO
WIPO (PCT)
Prior art keywords
cooling
passage
motor
communication
cooling system
Prior art date
Application number
PCT/CN2017/095238
Other languages
English (en)
Chinese (zh)
Inventor
张敬才
张胜川
夏继
Original Assignee
上海蔚来汽车有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 上海蔚来汽车有限公司 filed Critical 上海蔚来汽车有限公司
Publication of WO2018184328A1 publication Critical patent/WO2018184328A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
    • 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

Definitions

  • the invention belongs to the field of electric machines, and in particular provides a motor cooling system.
  • a cooling passage is respectively arranged on the stator (such as the casing) of the motor and the rotor (such as the rotating shaft), and is connected through an external cooling pipe to make the coolant It can be circulated in the cooling passage on the casing and the rotating shaft under the action of the cooling pump, thereby taking away a large amount of heat generated during the operation of the motor, so that the motor reaches the cooling effect.
  • the motor communicates the cooling passages of the casing and the rotating shaft through an external cooling pipe, which requires more components and a longer flow passage, resulting in a more complicated structure of the motor.
  • the present invention provides a motor cooling system including a casing, an end cover, a stator, and a rotor.
  • the casing is provided with a first nozzle and a second nozzle
  • the cooling system comprising a first cooling passage and a second cooling passage extending from the first cooling passage, wherein the first cooling a passage is disposed in the casing, and two ends of the first cooling passage are respectively connectable with the first nozzle and the second nozzle;
  • the second cooling passage comprises: a branch passage, Provided on the rotating shaft; and a communication passage disposed at an end of the motor, the communication passage is for communicating the branch passage and the first cooling passage;
  • the cooling system further includes a flow dividing mechanism The flow dividing mechanism is capable of regulating the flow rate of the coolant flowing through the second cooling passage.
  • the cooling system further includes a communication member disposed at an end of the motor, and the communication passage is disposed at the communication member.
  • the connecting member is a flow splitter.
  • the branch passage includes: a shaft hole disposed in the shaft; and a rotor water pipe disposed in the shaft hole; wherein one end of the rotor water pipe is fixed to The end of the motor.
  • the communication passage includes a first communication passage and a second communication passage, wherein the first communication passage is configured to communicate the first cooling passage and the rotating shaft hole, The second communication passage is configured to communicate with the rotor water pipe to communicate with the first cooling passage.
  • the flow dividing mechanism is disposed in the first cooling passage, and the flow dividing mechanism is disposed between an upstream end and a downstream end of the second cooling passage; and/or The flow dividing mechanism is disposed in the second cooling passage.
  • the flow dividing mechanism is a splitter column or a splitter valve.
  • At least a portion of the first cooling passages are helical or S-shaped along the axial direction of the motor.
  • the first cooling passage includes a main cooling section and a first connecting cooling section and a second connecting cooling section extending from the main cooling section, wherein the main cooling section
  • the spiral or S-shape is along the axial direction of the motor, and the communication passage communicates with the main cooling section through the first connecting cooling section and the second connecting cooling section, respectively.
  • the portion of the main cooling section between the first connecting cooling section and the second connecting cooling section and the second portion as viewed in the direction of the liquid inlet of the coolant The cooling channels are parallel cooling channels.
  • the first cooling port and the second nozzle are provided on the casing of the motor, and the first cooling channel is disposed at the first nozzle and the second nozzle, and Two ends of a cooling passage are respectively connected with the first nozzle and the second nozzle, and a branch passage is arranged on the rotating shaft, and a communication passage is arranged at an end of the motor, so that The branch passage can communicate with the first cooling passage through the communication passage and thus form a second cooling passage.
  • the motor cooling system of the present invention requires only two external water pipes to be respectively connected to the first nozzle and the second nozzle, so that the casing and the rotor of the motor can be supplied with the coolant, thereby simplifying the motor cooling system with respect to the prior art.
  • the structure reduces the complexity of the motor and saves costs.
  • the flow rate of the coolant entering the first cooling passage is adjusted by providing a flow rate for adjusting the coolant entering the second cooling passage on the casing.
  • the motor cooling system of the present invention is capable of changing the flow ratio of the coolant flowing through the first cooling passage and the second cooling passage by adjusting the flow dividing mechanism, so that the heat dissipation efficiency of the rotor and the stator of the motor can be effectively controlled.
  • FIG. 1 is a schematic view showing the effect of a motor cooling system according to an embodiment of the present invention
  • FIG. 2 is a schematic view showing an end portion of a motor cooling system according to an embodiment of the present invention
  • Figure 3 is a cross-sectional view of the motor cooling system of the embodiment of the present invention taken along line A-A of Figure 2;
  • FIG. 4 is a schematic diagram of a motor cooling system in accordance with an embodiment of the present invention.
  • the terms “upper”, “lower”, “left”, “right”, “inside”, “outside”, etc. indicate the direction or positional relationship.
  • the orientation or positional relationship shown in the drawings is for convenience of description, and is not intended to indicate or imply that the device or component must have a specific orientation, is constructed and operated in a particular orientation, and thus is not to be construed as limiting the invention.
  • the terms “first,” “second,” and “third” are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
  • the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed connections, for example, or It is a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be internal communication between the two elements.
  • the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the motor cooling system shown in FIGS. 1 to 3 mainly includes a casing 1, a stator (not shown), a rotor (not shown), a rotating shaft 2, and a flow divider 3 at the end of the motor.
  • the inside of the casing 1 is provided with a first cooling passage 11, and in addition to the main cooling section in the casing 1, the first cooling passage 11 further includes a first connecting hole 111 as a first connecting cooling section and as a second A second connection hole 112 of the cooling section is connected.
  • a branch passage 21 is provided in the rotating shaft 2.
  • a first communication channel 311 is disposed in the first connecting beam 31 of the flow divider 3
  • a second communication channel 321 is disposed in the second connecting beam 32 of the flow divider 3
  • the first communication channel 311 and the second communication channel 321 are combined. Connected channels. Further, the communication channel and the branch channel 21 together form a second cooling channel. Further, the first connection hole 111 and the second connection hole 112 serve as extension portions of the first cooling passage 11 and can communicate with the first communication passage 311 and the second communication passage 321 , respectively.
  • the left end of the first connection hole 111 communicates with the first cooling passage 11, and the right end of the first connection hole 111 communicates with the upper end of the first communication passage 311, and the lower end of the first communication passage 311 is
  • the branch passage 21 is in communication
  • the branch passage 21 is in communication with the upper end of the second communication passage 321
  • the lower end of the second communication passage 321 is in communication with the right end of the second connection hole 112
  • the left end of the second connection hole 112 is first
  • the cooling passages 11 are in communication.
  • the first communication channel 311, the branch channel 21 and the second communication channel 321 together form a second cooling channel.
  • both ends of the first cooling passage 11 communicate with the first water pipe 13 and the second water pipe 14, respectively, through the first nozzle and the second nozzle provided on the casing 1.
  • a bypass passage 21 is provided in the shaft 2.
  • a shaft hole (not shown) is disposed in the rotating shaft 2 for accommodating a rotor water pipe (not shown), and the rotor water pipe is fixedly connected to the end of the motor.
  • An annular cavity 211 is formed between the inner wall of the shaft hole and the outer wall of the rotor water pipe, and the annular cavity 211 and the inner cavity 212 of the rotor water pipe together form a branch passage 21 for allowing coolant to flow from the annular cavity 211 to the inner cavity 212 or Flow from the inner chamber 212 to the annular chamber 211 allows the flowing coolant to quickly carry away the heat of the shaft 2.
  • branch passage 21 into other shapes as needed, for example, the annular chamber 211 is arranged in a spiral shape along the axis of the rotary shaft 2.
  • the shunt 3 is preferably detachably disposed at the end of the motor by bolts (not shown) to facilitate machining, manufacturing and maintenance of the motor and shunt 3, or in the art.
  • the technician can also fixedly connect the shunt 3 to the end of the motor, such as welding, by other means of connection as needed.
  • the person skilled in the art can also integrally form the shunt 3 with the end of the motor as a whole.
  • the flow divider 3 includes a first connecting beam 31 and a second connecting beam 32, and the first communication passage 311 is disposed within the first connecting beam 31, and the second communication passage 321 is disposed within the second cooling beam 32.
  • the first communication channel 311 is configured to communicate with the first connection hole 111 and the branch channel 21 (such as the annular cavity 211), and the second communication channel 321 is configured to connect the branch channel 21 (such as the cavity 212) with the second connection hole 112.
  • the first communication passage 311, the branch passage 21 and the second communication passage 321 together form a second cooling passage, so that the coolant can flow directly from the casing 1 into the rotating shaft 2 to cool the rotating shaft and the rotor.
  • the cooling passages on the motor casing and the cooling passages on the rotating shaft are communicated by external piping in the prior art.
  • the first communication passages 311 And the second communication passage 321 is not only short in the flow path, but also can effectively reduce the resistance when the coolant flows through the flow divider by adjusting the sectional areas of the first communication passage 311 and the second communication passage 321 .
  • the connecting member is a larger diameter conduit.
  • the channel connecting the first connecting hole 111 and the annular cavity 211 and the channel connecting the second connecting hole 112 and the inner cavity 212 may be one piece or multiple pieces, such as two. Articles, three, five, etc.
  • a shunt column 15 is disposed on the casing 1, and the shunt column 15 is located between the first communication passage 311 and the second communication passage 321 , and a part of the structure of the shunt column 15 can be extended to Inside the first cooling passage 11.
  • the splitter column 15 is threadedly engaged with the casing 1, and the length of the portion of the splitter column 15 extending into the first cooling passage 11 can be changed by moving (eg, rotating) the splitter column 15, thereby changing the first cooling passage 11 there.
  • the cross-sectional area is such that the flow rate of the coolant flowing through the first cooling passage 11 can be adjusted.
  • the coolant preferably enters the first cooling passage 11 from the first water pipe 13 and flows out of the second water pipe 14, that is, the total flow rate of the coolant in the motor does not change, the coolant in the first cooling passage 11
  • the flow rate of the coolant in the branch passage 21 also changes, and the change is inversely related to the change in the coolant flow rate in the first cooling passage 11.
  • the shunt column 15 can also be any shunting mechanism that can be thought of and can be implemented by a person skilled in the art, for example, a diverter valve, a throttle valve, and the shunting mechanism can also be fixed to the casing 1 by other feasible connection manners.
  • Upper, for example, the throttle valve is fixed to the casing 1 by bolts.
  • the person skilled in the art can also arrange the shunt column 15 at the first connecting hole 111 or the second connecting hole 112 as needed, or arrange the shunt column 15 on the shunt 3 so as to process the mounting hole of the shunt column 15. And when the mounting hole of the splitter column 15 is damaged (such as the threaded tripping), it is convenient to replace, that is, the shunt 3 is directly replaced.
  • a person skilled in the art can also respectively provide a shunt column 15 in the first cooling passage 11 and the second cooling passage as needed.
  • a shunt column 15 is disposed between the first communication passage 311 and the second communication passage 321 on the casing 1, and the diverter column 15 is disposed on the first connecting beam 31 of the diverter 3 or the second connecting beam 32. It will be readily understood by those skilled in the art that the shunt column 15 of the present invention can provide a throttling effect to the cooling passages therein.
  • the splitter column 15 on the second cooling passage is adjusted to a position where the cross section of the cooling passage is maximized, thereby adjusting the splitter column 15 on the first cooling passage 11.
  • the second cooling passage needs to be throttled, it is necessary to adjust the splitter column 15 on the first cooling passage 11 to the position where the cross section of the cooling passage is the largest, thereby adjusting the splitter column 15 on the second cooling passage.
  • the motor cooling system of the present invention mainly includes a first cooling passage 11 and a second cooling passage extending from the first cooling passage 11.
  • the first cooling passage 11 communicates with the first communication passage 311 and the second communication passage 321 of the second cooling passage through the first connection hole 111 and the second connection hole 112, respectively.
  • the motor cooling system of the present invention further includes a splitter column 15 located between the upstream end and the downstream end of the second cooling passage, that is, the inlet of the first communication passage 311 shown in FIG.
  • the mouth and the second communication passage 321 are between the liquid outlets.
  • the person skilled in the art can also arrange the splitter column 15 in the second cooling channel as needed, so that the flow rate of the coolant flowing through the second cooling channel can be directly adjusted by adjusting the opening of the splitter column 15, thereby making the second The cooling passage can directly shut off the coolant through the splitter column 15 when no coolant is required.
  • a person skilled in the art may separately provide a splitter column 15 in the first cooling passage 11 and the second cooling passage as needed.
  • the cooling liquid is water, or other medium may be selected as a cooling liquid such as hydraulic oil as needed by those skilled in the art.
  • the person skilled in the art can also appropriately adjust the motor cooling system of the present invention under the premise that the coolant can flow through the casing and the rotating shaft, for example, the first communication passage 311 and the inner cavity 212 are connected, so that The second communication passage 321 is in communication with the annular chamber 211.
  • the cooling passages (111, 121) on the casing 1 are communicated with the branch passages 21 on the rotating shaft 2 through the first connecting beam 31 and the second connecting beam 32, so that the motor only needs Providing an inlet pipe and an outlet pipe (the first water pipe 13 and the second water pipe 14) can ensure that the casing 1 and the rotating shaft 2 can be simultaneously cooled, thereby being compared with the prior art motor cooling system (collection of cooling components). Reduced complexity.
  • the heat dissipation ratio of the rotor and the stator can be effectively adjusted, so that the heat dissipation effect of the rotor of the motor can be optimized.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

L'invention concerne un système de refroidissement de moteur, comprenant un premier canal de refroidissement (11) et un second canal de refroidissement s'étendant hors du premier canal de refroidissement (11). Le premier canal de refroidissement (11) est disposé entre un premier orifice d'eau et un second orifice d'eau à l'intérieur d'un carter (1), le second canal de refroidissement comprend un canal de dérivation (21) disposé sur un arbre rotatif (2) et un canal de communication (321) au niveau d'une partie d'extrémité d'un moteur, le canal de dérivation (21) étant en communication avec le premier canal de refroidissement (11) par l'intermédiaire du canal de communication (321), de façon à former le second canal de refroidissement. Le système de refroidissement comprend également un mécanisme de division d'écoulement, apte à réguler l'écoulement de liquide de refroidissement à travers le second canal de refroidissement. Par conséquent, le système de refroidissement de moteur réduit la température d'un stator et d'un rotor, et commande également la vitesse de dissipation de chaleur du stator et du rotor par l'intermédiaire d'un montant de division d'écoulement (15), ce qui permet d'augmenter l'efficacité de refroidissement du moteur et de réduire la complexité du moteur.
PCT/CN2017/095238 2017-04-07 2017-07-31 Système de refroidissement de moteur WO2018184328A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710224972.2 2017-04-07
CN201710224972.2A CN106981943A (zh) 2017-04-07 2017-04-07 电机冷却系统

Publications (1)

Publication Number Publication Date
WO2018184328A1 true WO2018184328A1 (fr) 2018-10-11

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PCT/CN2017/095238 WO2018184328A1 (fr) 2017-04-07 2017-07-31 Système de refroidissement de moteur

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WO (1) WO2018184328A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106981943A (zh) * 2017-04-07 2017-07-25 上海蔚来汽车有限公司 电机冷却系统
CN110277842A (zh) * 2018-03-15 2019-09-24 蔚来汽车有限公司 带有冷却套件的电机
CN118336989B (zh) * 2024-06-13 2024-09-27 浙江飞旋科技有限公司 冷却方法、冷却系统以及驱动设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104942649A (zh) * 2015-07-21 2015-09-30 安阳工学院 一种高速电主轴内外冷却结构
CN205429991U (zh) * 2016-02-03 2016-08-03 中山大洋电机股份有限公司 一种电机的冷却结构
CN106300809A (zh) * 2016-09-27 2017-01-04 佛山市顺德区金泰德胜电机有限公司 一种汽车电机的冷却结构
CN106953467A (zh) * 2017-04-07 2017-07-14 上海蔚来汽车有限公司 电机冷却系统
CN106972698A (zh) * 2017-04-07 2017-07-21 上海蔚来汽车有限公司 电机冷却系统
CN106981943A (zh) * 2017-04-07 2017-07-25 上海蔚来汽车有限公司 电机冷却系统

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1077522B1 (fr) * 1999-08-10 2005-02-02 The Swatch Group Management Services AG Dispositif d'entraínement comportant un moteur électrique refroidi par liquide et un engrenage planétaire
CN202818002U (zh) * 2012-07-31 2013-03-20 联合汽车电子有限公司 内转子电机的冷却结构
CN106208526B (zh) * 2016-08-31 2019-06-14 山东哈普沃动力科技股份有限公司 涡旋式水冷、风冷双能降温的耐候型电机
CN106411051B (zh) * 2016-11-25 2019-10-01 长沙汽电汽车零部件有限公司 电机及控制器一体化结构水冷系统

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104942649A (zh) * 2015-07-21 2015-09-30 安阳工学院 一种高速电主轴内外冷却结构
CN205429991U (zh) * 2016-02-03 2016-08-03 中山大洋电机股份有限公司 一种电机的冷却结构
CN106300809A (zh) * 2016-09-27 2017-01-04 佛山市顺德区金泰德胜电机有限公司 一种汽车电机的冷却结构
CN106953467A (zh) * 2017-04-07 2017-07-14 上海蔚来汽车有限公司 电机冷却系统
CN106972698A (zh) * 2017-04-07 2017-07-21 上海蔚来汽车有限公司 电机冷却系统
CN106981943A (zh) * 2017-04-07 2017-07-25 上海蔚来汽车有限公司 电机冷却系统

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