WO2018184328A1 - Motor cooling system - Google Patents
Motor cooling system Download PDFInfo
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- 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
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- Prior art keywords
- cooling
- passage
- motor
- communication
- cooling system
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- 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
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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
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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Abstract
A motor cooling system, comprising a first cooling channel (11), and a second cooling channel extending out from the first cooling channel (11). The first cooling channel (11) is arranged between a first water port and a second water port within a housing (1), the second cooling channel comprises a branch channel (21) arranged on a rotary shaft (2) and a communication channel (321) at an end portion of a motor, the branch channel (21) being in communication with the first cooling channel (11) via the communication channel (321), so as to form the second cooling channel. The cooling system also comprises a flow-dividing mechanism, capable of adjusting the flow of coolant through the second cooling channel. Therefore, the motor cooling system reduces the temperature of a stator and a rotor, and also controls the heat dissipation speed of the stator and the rotor via a flow-dividing post (15), thereby increasing the cooling efficiency of the motor, and decreasing the complexity of the motor.
Description
本发明属于电机领域，具体提供一种电机冷却***。The invention belongs to the field of electric machines, and in particular provides a motor cooling system.
随着科学技术的不断进步，高功率和高转矩密度的电机被越来越多的应用。但是高功率和高转矩密度的电机在使用过程中存在较高的温升，从而对电机运行的性能、效率以及寿命和可靠性造成了严重的影响。为了降低电机的温升，通常需要对电机的定子和转子进行冷却，例如在电机的定子(如机壳)和转子(如转轴)上分别设置冷却通道并通过外接冷却管进行连通，使得冷却液能够在冷却泵的作用下于机壳和转轴上的冷却通道内进行循环，从而带走电机运行过程中产生的大量热量，使电机达到降温的效果。With the continuous advancement of science and technology, high power and high torque density motors are being used more and more. However, high power and high torque density motors have a high temperature rise during use, which has a serious impact on the performance, efficiency, and longevity and reliability of the motor. In order to reduce the temperature rise of the motor, it is usually necessary to cool the stator and the rotor of the motor, for example, 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.
但是，电机通过外接冷却管将机壳和转轴的冷却通道进行连通需要较多的零部件和较长的流道，致使电机的结构比较复杂。However, 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.
相应地，本领域需要一种新的电机冷却***来解决上述问题。Accordingly, there is a need in the art for a new motor cooling system to address the above problems.
发明内容Summary of the invention
为了解决现有技术中的上述问题，即为了解决现有技术中电机冷却***的结构比较复杂的问题，本发明提供了一种电机冷却***，所述电机包括机壳、端盖、定子、转子和转轴，所述机壳上设置有第一水口和第二水口，所述冷却***包括第一冷却通道以及由所述第一冷却通道延伸出的第二冷却通道，其中，所述第一冷却通道设置在所述机壳内，并且所述第一冷却通道的两端能够分别与所述第一水口和所述第二水口相连通；其中，所述第二冷却通道包括：支路通道，其设置于所述转轴；以及连通通道，其设置于所述电机的端部，所述连通通道用于将所述支路通道和所述第一冷却通道连通；所述冷却***还包括分流机构，该分流机构能够调节流经所述第二冷却通道的冷却液的流量。
In order to solve the above problems in the prior art, that is, to solve the problem that the structure of the motor cooling system in the prior art is relatively complicated, the present invention provides a motor cooling system including a casing, an end cover, a stator, and a rotor. And a rotating shaft, 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; wherein 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.
在上述电机冷却***的优选技术方案中，所述冷却***还包括连通件，所述连通件设置于所述电机的端部，所述连通通道设置于所述连通件。In a preferred embodiment of the motor cooling system described above, 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.
在上述电机冷却***的优选技术方案中，所述连通件为分流器。In a preferred embodiment of the motor cooling system described above, the connecting member is a flow splitter.
在上述电机冷却***的优选技术方案中，所述支路通道包括：设置于所述转轴内的转轴孔；以及设置于所述转轴孔内的转子水管；其中，所述转子水管的一端固定于所述电机的端部。In a preferred embodiment of the motor cooling system, 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.
在上述电机冷却***的优选技术方案中，所述连通通道包括第一连通通道和第二连通通道，其中，所述第一连通通道用于连通所述第一冷却通道与所述转轴孔，所述第二连通通道用于连通所述转子水管与所述第一冷却通道连通。In a preferred embodiment of the motor cooling system, 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.
在上述电机冷却***的优选技术方案中，所述分流机构设置于所述第一冷却通道中，并且所述分流机构设置于所述第二冷却通道的上游端和下游端之间；并且/或者所述分流机构设置于所述第二冷却通道中。In a preferred embodiment of the above motor cooling system, 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.
在上述电机冷却***的优选技术方案中，所述分流机构是分流柱或者分流阀。In a preferred embodiment of the motor cooling system described above, the flow dividing mechanism is a splitter column or a splitter valve.
在上述电机冷却***的优选技术方案中，至少一部分所述第一冷却通道中沿电机的轴线方向呈螺旋型或S型。In a preferred embodiment of the motor cooling system described above, at least a portion of the first cooling passages are helical or S-shaped along the axial direction of the motor.
在上述电机冷却***的优选技术方案中，所述第一冷却通道包括主冷却段以及由所述主冷却段延伸出的第一连接冷却段和第二连接冷却段，其中，所述主冷却段沿电机的轴线方向呈螺旋型或S型，所述连通通道通过所述第一连接冷却段和所述第二连接冷却段分别与所述主冷却段连通。In a preferred embodiment of the above motor cooling system, 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.
在上述电机冷却***的优选技术方案中，沿冷却液的进液方向观察，所述主冷却段位于所述第一连接冷却段和所述第二连接冷却段之间的部分与所述第二冷却通道为并联的冷却通道。In a preferred embodiment of the motor cooling system described above, 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.
本领域技术人员能够理解的是，在本发明的优选技术方案中，通过在电机的机壳上设置第一水口和第二水口，在第一水口和第二水口设置第一冷却通道，并且第一冷却通道的两端分别与第一水口和第二水口连通，在转轴上设置支路通道，在电机的端部设置连通通道，使
支路通道能够通过该连通通道与第一冷却通道连通，并因此形成第二冷却通道。因此，本发明的电机冷却***只需两根外接水管分别连接第一水口和第二水口，便可使电机的机壳和转子都通入冷却液，从而相对于现有技术简化了电机冷却***的结构，降低了电机的复杂程度，节约了成本。It can be understood by those skilled in the art that, in a preferred technical solution of the present invention, 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. Therefore, 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.
进一步，通过在机壳上设置用于调节进入第二冷却通道的冷却液的流量，进而调节进入第一冷却通道的冷却液的流量。使得本发明的电机冷却***能够通过调节分流机构改变流经第一冷却通道和第二冷却通道的冷却液的流量比，使得电机的转子和定子的散热效率能够得到有效地控制。Further, 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.
图1是本发明实施例的电机冷却***的效果示意图；1 is a schematic view showing the effect of a motor cooling system according to an embodiment of the present invention;
图2是本发明实施例的电机冷却***的端部示意图；2 is a schematic view showing an end portion of a motor cooling system according to an embodiment of the present invention;
图3是本发明实施例的电机冷却***沿图2中A-A向的剖视图；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;
图4是本发明实施例的电机冷却***的原理图。4 is a schematic diagram of a motor cooling system in accordance with an embodiment of the present invention.
附图标记列表：List of reference signs:
1、机壳；11、第一冷却通道；111、第一连接孔；112、第二连接孔；13、第一水管；14、第二水管；15、分流柱；2、转轴；21、支路通道；211、环形腔；212、内腔；3、分流器；31、第一连接梁；311、第一连通通道；32、第二连接梁；321、第二连通通道。1, the casing; 11, the first cooling passage; 111, the first connecting hole; 112, the second connecting hole; 13, the first water pipe; 14, the second water pipe; 15, the diverting column; 2, the rotating shaft; Road channel; 211, annular cavity; 212, inner cavity; 3, shunt; 31, first connecting beam; 311, first connecting channel; 32, second connecting beam; 321, second connecting channel.
下面参照附图来描述本发明的优选实施方式。本领域技术人员应当理解的是，这些实施方式仅仅用于解释本发明的技术原理，并非用于限制本发明的保护范围。例如，虽然附图中的各部件之间是按一定比例关系绘制的，但是这种比例关系并非一成不变，本领域技术人员可以根据需要对其作出调整，以便适应具体的应用场合，调整后的技术方案仍将落入本发明的保护范围。Preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the scope of the present invention. For example, although the components in the drawings are drawn in a proportional relationship, the proportional relationship is not constant, and those skilled in the art can adjust them according to needs to adapt to specific applications, and the adjusted technology. The solution will still fall within the scope of protection of the present invention.
需要说明的是，在本发明的描述中，术语“上”、“下”、“左”、“右”、“内”、“外”等指示的方向或位置关系的术语是基
于附图所示的方向或位置关系，这仅仅是为了便于描述，而不是指示或暗示所述装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。It should be noted that, in the description 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. . Moreover, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
此外，还需要说明的是，在本发明的描述中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域技术人员而言，可根据具体情况理解上述术语在本发明中的具体含义。In addition, it should be noted that in the description of the present invention, 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. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
如图1至图3所示的电机冷却***在结构上主要包括机壳1、定子(图中未标示)、转子(图中未标示)、转轴2和位于电机端部的分流器3。其中，机壳1的内部设置有第一冷却通道11，并且在机壳1内除了主冷却段外，第一冷却通道11还包括作为第一连接冷却段的第一连接孔111和作为第二连接冷却段的第二连接孔112。转轴2内设置有支路通道21。分流器3的第一连接梁31内设置有第一连通通道311，分流器3的第二连接梁32内设置有第二连通通道321，并且第一连通通道311和第二连通通道321共同组成连通通道。进一步，该连通通道和支路通道21共同组成第二冷却通道。更进一步，第一连接孔111和第二连接孔112作为第一冷却通道11的延伸部分，能够分别连通第一连通通道311和第二连通通道321。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. Wherein, 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, and 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.
进一步，如图3所示，第一连接孔111的左端与第一冷却通道11相连通，第一连接孔111的右端与第一连通通道311的上端相连通，第一连通通道311的下端与支路通道21相连通，支路通道21与第二连通通道321的上端相连通，第二连通通道321的下端与第二连接孔112的右端相连通，第二连接孔112的左端与第一冷却通道11相连通。其中，第一连通通道311、支路通道21和第二连通通道321共同构成第二冷却通道。Further, as shown in FIG. 3, 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 , and 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.
更进一步，如图1和图3所示，第一冷却通道11的两端通过设置在机壳1上的第一水口和第二水口分别与第一水管13和第二水管14连通。
Further, as shown in FIGS. 1 and 3, 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.
继续参阅图3，转轴2内设置有支路通道21。具体地，转轴2内设置有转轴孔(图中未标示)，用于容纳转子水管(图中未标示)，并且该转子水管与电机的端部固定连接。在转轴孔的内壁和转子水管的外壁之间形成有环形腔211，该环形腔211与转子水管的内腔212共同形成支路通道21，使冷却液能够从环形腔211内流向内腔212或者从内腔212流向环形腔211，进而使流动的冷却液能够快速地将转轴2的热量带走。此外，本领域技术人员还可以根据需要，将支路通道21设置成其他形状的结构，例如将环形腔211设置成沿转轴2的轴线呈螺旋型的结构。With continued reference to Figure 3, a bypass passage 21 is provided in the shaft 2. Specifically, 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. Further, those skilled in the art can also arrange the 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.
如图1至图3所示，分流器3优选地通过螺栓(图中未示出)可拆卸地设置于电机的端部，以便于电机和分流器3的加工、制造和维修，或者本领域技术人员还可以根据需要，通过其他的连接方式将分流器3与电机的端部固定连接，例如焊接。此外本领域技术人员还可以将分流器3与电机的端部一体成型为一个整体。进一步，分流器3包括第一连接梁31和第二连接梁32，并且第一连通通道311设置在第一连接梁31内，第二连通通道321设置在第二冷却梁32内。第一连通通道311用于连通第一连接孔111和支路通道21(如环形腔211)，第二连通通道321用于将支路通道21(如内腔212)与第二连接孔112相连通，使得第一连通通道311、支路通道21和第二连通通道321共同构成第二冷却通道，从而使冷却液能够从机壳1直接流入转轴2内对转轴和转子进行冷却。As shown in Figures 1 to 3, 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. Furthermore, the person skilled in the art can also integrally form the shunt 3 with the end of the motor as a whole. Further, 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.
本领域技术人员能够理解的是，相对于现有技术中通过外接管路将电机机壳上的冷却通道和转轴上的冷却通道相连通，在本发明的优选实施方案中，第一连通通道311和第二连通通道321不仅流道短，而且通过调整第一连通通道311和第二连通通道321的截面积还能够有效地减少冷却液流经分流器时的阻力。It will be understood by those skilled in the art that the cooling passages on the motor casing and the cooling passages on the rotating shaft are communicated by external piping in the prior art. In a preferred embodiment of the present invention, 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 .
此外，除图1至图3中所示的分流器3外，本领域技术人员还可以根据需要选用其他形式的连通件将第一连接孔111和第二连接孔112分别与支路通道21的环形腔211和内腔212相连通，例如，该连通件是直径较大的管路。本领域技术人员可以理解的是，连通第一连接孔111和环形腔211的通道与连通第二连接孔112和内腔212的通道在数量上既可以是一条，也可以是多条，如两条、三条、五条等。
In addition, in addition to the shunt 3 shown in FIG. 1 to FIG. 3, those skilled in the art can select other types of connecting members to connect the first connecting hole 111 and the second connecting hole 112 to the branch passage 21 respectively. The annular chamber 211 is in communication with the inner chamber 212, for example, the connecting member is a larger diameter conduit. It can be understood by those skilled in the art that 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.
如图3和图4所示，在机壳1上设置有分流柱15，该分流柱15位于第一连通通道311和第二连通通道321之间，并且该分流柱15的部分结构能够伸至第一冷却通道11内。优选地，该分流柱15与机壳1通过螺纹配合，通过移动(如转动)分流柱15能够改变分流柱15伸至第一冷却通道11内部分的长短，进而改变该处第一冷却通道11的截面面积，从而能够调节流经第一冷却通道11的冷却液的流量。由于冷却液优选地是从第一水管13进入第一冷却通道11并从第二水管14流出的，即在电机内的冷却液的总流量不变，所以在第一冷却通道11内冷却液的流量发生变化时，支路通道21内的冷却液的流量也会发生变化，并且该变化与第一冷却通道11内冷却液流量的变化成负相关。需要说明的是，分流柱15还可以是本领域技术人员能够想到且能够实施的任何分流机构，例如，分流阀、节流阀，并且分流机构还可以通过其他可行的连接方式固定在机壳1上，例如将节流阀通过螺栓固定在机壳1上。As shown in FIG. 3 and FIG. 4, 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. Preferably, 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. Since 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 When the flow rate changes, 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. It should be noted that 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.
此外，本领域技术人员还可以根据需要，将分流柱15设置在第一连接孔111或第二连接孔112处，或者将分流柱15设置在分流器3上，以便分流柱15安装孔的加工，以及在分流柱15的安装孔发生损坏(如安装螺纹脱扣)时，方便替换，即直接更换分流器3。In addition, 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.
进一步，本领域技术人员还可以根据需要，在第一冷却通道11和第二冷却通道中分别设置一个分流柱15。可选地，在机壳1上第一连通通道311和第二连通通道321之间设置分流柱15，在分流器3的第一连接梁31上或第二连接梁32上设置分流柱15。本领域技术人员容易理解的是，本发明的分流柱15能够给所在冷却通道起到节流的作用，所以，为了降低冷却液的阻尼力，当第一冷却通道11需要节流时，需要将第二冷却通道上的分流柱15调整为使该处冷却通道截面最大的位置，进而调整第一冷却通道11上的分流柱15。当第二冷却通道需要节流时，需要将第一冷却通道11上的分流柱15调整为使该处冷却通道截面最大的位置，进而调整第二冷却通道上的分流柱15。Further, 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. Optionally, 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. Therefore, in order to reduce the damping force of the coolant, when the first cooling passage 11 needs to be throttled, it is necessary to 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. When 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.
如图4所示，在本发明的优选实施方案中，本发明的电机冷却***主要包括第一冷却通道11和由第一冷却通道11延伸出的第二冷却通道。具体地，第一冷却通道11通过第一连接孔111和第二连接孔112分别与第二冷却通道的第一连通通道311和第二连通通道321相连通。
As shown in FIG. 4, in a preferred embodiment of the present invention, 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. Specifically, 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.
继续参阅图4，本发明的电机冷却***还包括分流柱15，该分流柱15位于第二冷却通道的上游端和下游端之间，即图4中所示的第一连通通道311的进液口和第二连通通道321出液口之间。通过调节分流柱15能够改变该处第一冷却通道11截面积的大小，进而能够改变第一冷却通道11内冷却液的流量，从而能够改变第二冷却通道的冷却液的流量。With continued reference to FIG. 4, 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. By adjusting the splitter column 15, the size of the cross-sectional area of the first cooling passage 11 can be changed, and the flow rate of the coolant in the first cooling passage 11 can be changed, so that the flow rate of the coolant of the second cooling passage can be changed.
此外，本领域技术人员还可以根据需要，将分流柱15设置在第二冷却通道内，以便通过调节分流柱15的开口能够直接调节流经第二冷却通道的冷却液的流量，进而使得第二冷却通道在不需要冷却液时能够通过该分流柱15直接将冷却液截止。或者，本领域技术人员还可以根据需要，在第一冷却通道11和第二冷却通道内分别设置一个分流柱15。In addition, 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. Alternatively, 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.
需要说明的是，在本发明的优选实施方案中，冷却液是水，或者本领域技术人员还可以根据需要选用其他介质作为冷却液，如液压油。It should be noted that, in a preferred embodiment of the present invention, 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.
此外，本领域技术人员还可以根据需要，在冷却液能够流经机壳和转轴的前提下对本发明的电机冷却***进行适当调整，例如，使第一连通通道311与内腔212相连通，使第二连通通道321与环形腔211相连通。In addition, 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.
本领域技术人员能够理解的是，通过第一连接梁31和第二连接梁32将机壳1上的冷却通道(111、121)与转轴2上的支路通道21进行连通，使电机只需设置一个进水管和一个出水管(第一水管13和第二水管14)就能保证机壳1和转轴2能够被同时冷却，从而相对于现有技术中的电机冷却***(冷却部件的集合)降低了复杂程度。进一步，通过在机壳1上设置调节第一冷却通道11和支路通道21内冷却液流量比的分流柱15，能够有效地调节转子和定子的散热比，从而能够优化电机转子的散热效果。It will be understood by those skilled in the art that 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. Further, by providing the shunt column 15 for adjusting the coolant flow ratio in the first cooling passage 11 and the branch passage 21 on the casing 1, 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.
至此，已经结合附图所示的优选实施方式描述了本发明的技术方案，但是，本领域技术人员容易理解的是，本发明的保护范围显然不局限于这些具体实施方式。在不偏离本发明的原理的前提下，本领域技术人员可以对相关技术特征作出等同的更改或替换，这些更改或替换之后的技术方案都将落入本发明的保护范围之内。
Heretofore, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the drawings, but it is obvious to those skilled in the art that the scope of the present invention is obviously not limited to the specific embodiments. Those skilled in the art can make equivalent changes or substitutions to the related technical features without departing from the principles of the present invention, and the technical solutions after the modifications or replacements fall within the scope of the present invention.
Claims (10)
- 一种电机冷却***，所述电机包括机壳、端盖、定子、转子和转轴，所述机壳上设置有第一水口和第二水口，其特征在于，所述冷却***包括第一冷却通道以及由所述第一冷却通道延伸出的第二冷却通道，A motor cooling system, the motor comprising a casing, an end cover, a stator, a rotor and a rotating shaft, wherein the casing is provided with a first nozzle and a second nozzle, wherein the cooling system comprises a first cooling passage And a second cooling passage extending from the first cooling passage,其中，所述第一冷却通道设置在所述机壳内，并且所述第一冷却通道的两端能够分别与所述第一水口和所述第二水口相连通；Wherein the first cooling 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;其中，所述第二冷却通道包括：Wherein the second cooling channel comprises:支路通道，其设置于所述转轴；以及a branch passage disposed on the rotating shaft;连通通道，其设置于所述电机的端部，所述连通通道用于将所述支路通道和所述第一冷却通道连通；a communication passage disposed at an end of the motor, the communication passage for communicating the branch passage and the first cooling passage;所述冷却***还包括分流机构，该分流机构能够调节流经所述第二冷却通道的冷却液的流量。The cooling system also includes a flow splitting mechanism that is capable of regulating the flow of coolant through the second cooling passage.
- 根据权利要求1所述的电机冷却***，其特征在于，所述冷却***还包括连通件，所述连通件设置于所述电机的端部，所述连通通道设置于所述连通件。The motor cooling system according to claim 1, wherein said cooling system further comprises a communication member, said communication member being disposed at an end of said motor, said communication passage being disposed at said communication member.
- 根据权利要求2所述的电机冷却***，其特征在于，所述连通件为分流器。The motor cooling system of claim 2 wherein said communication member is a flow splitter.
- 根据权利要求1所述的电机冷却***，其特征在于，所述支路通道包括：The motor cooling system of claim 1 wherein said branch passage comprises:设置于所述转轴内的转轴孔；以及a shaft hole disposed in the rotating shaft;设置于所述转轴孔内的转子水管；a rotor water pipe disposed in the shaft hole;其中，所述转子水管的一端固定于所述电机的端部。Wherein one end of the rotor water pipe is fixed to an end of the motor.
- 根据权利要求4所述的电机冷却***，其特征在于，所述连通通道包括第一连通通道和第二连通通道，The motor cooling system according to claim 4, wherein said communication passage includes a first communication passage and a second communication passage,其中，所述第一连通通道用于连通所述第一冷却通道与所述转轴孔，所述第二连通通道用于连通所述转子水管与所述第一冷却通道连通。 The first communication passage is configured to communicate the first cooling passage and the rotating shaft hole, and the second communication passage is configured to communicate with the rotor water pipe to communicate with the first cooling passage.
- 根据权利要求1至5中任一项所述的电机冷却***，其特征在于，所述分流机构设置于所述第一冷却通道中，并且The motor cooling system according to any one of claims 1 to 5, wherein the flow dividing mechanism is disposed in the first cooling passage, and所述分流机构设置于所述第二冷却通道的上游端和下游端之间；并且/或者The flow dividing mechanism is disposed between an upstream end and a downstream end of the second cooling passage; and/or所述分流机构设置于所述第二冷却通道中。The flow dividing mechanism is disposed in the second cooling passage.
- 根据权利要求6所述的电机冷却***，其特征在于，所述分流机构是分流柱或者分流阀。The motor cooling system according to claim 6, wherein the flow dividing mechanism is a splitter column or a splitter valve.
- 根据权利要求1至5中任一项所述的电机冷却***，其特征在于，至少一部分所述第一冷却通道沿电机的轴线方向呈螺旋型或S型。The motor cooling system according to any one of claims 1 to 5, characterized in that at least a part of said first cooling passages are spiral or S-shaped in the axial direction of the motor.
- 根据权利要求8所述的电机冷却***，其特征在于，所述第一冷却通道包括主冷却段以及由所述主冷却段延伸出的第一连接冷却段和第二连接冷却段，The motor cooling system according to claim 8, wherein said first cooling passage includes a main cooling section and a first connecting cooling section and a second connecting cooling section extending from said main cooling section,其中，所述主冷却段沿电机的轴线方向呈螺旋型或S型，所述连通通道通过所述第一连接冷却段和所述第二连接冷却段分别与所述主冷却段连通。Wherein the main cooling section is spiral or S-shaped along the axial direction of the motor, and the communication passage is respectively communicated with the main cooling section through the first connecting cooling section and the second connecting cooling section.
- 根据权利要求9所述的电机冷却***，其特征在于，沿冷却液的进液方向观察，所述主冷却段位于所述第一连接冷却段和所述第二连接冷却段之间的部分与所述第二冷却通道为并联的冷却通道。 The motor cooling system according to claim 9, wherein said main cooling section is located between said first connecting cooling section and said second connecting cooling section as viewed in a direction of inlet of said cooling liquid The second cooling passage is a parallel cooling passage.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710224972.2A CN106981943A (en) | 2017-04-07 | 2017-04-07 | Electromotor cooling system |
| CN201710224972.2 | 2017-04-07 |
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| WO2018184328A1 true WO2018184328A1 (en) | 2018-10-11 |
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| PCT/CN2017/095238 WO2018184328A1 (en) | 2017-04-07 | 2017-07-31 | Motor cooling system |
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| CN106981943A (en) * | 2017-04-07 | 2017-07-25 | 上海蔚来汽车有限公司 | Electromotor cooling system |
| CN110277842A (en) * | 2018-03-15 | 2019-09-24 | 蔚来汽车有限公司 | Motor with cooling jacket |
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| CN106953467A (en) * | 2017-04-07 | 2017-07-14 | 上海蔚来汽车有限公司 | Electromotor cooling system |
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| CN106981943A (en) * | 2017-04-07 | 2017-07-25 | 上海蔚来汽车有限公司 | Electromotor cooling system |
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| CN104942649A (en) * | 2015-07-21 | 2015-09-30 | 安阳工学院 | Internal and external cooling structure for high-speed motorized spindle |
| CN205429991U (en) * | 2016-02-03 | 2016-08-03 | 中山大洋电机股份有限公司 | Cooling structure of motor |
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