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WO2018184327A1 - Système de refroidissement de moteur - Google Patents

Système de refroidissement de moteur Download PDF

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Publication number
WO2018184327A1
WO2018184327A1 PCT/CN2017/095223 CN2017095223W WO2018184327A1 WO 2018184327 A1 WO2018184327 A1 WO 2018184327A1 CN 2017095223 W CN2017095223 W CN 2017095223W WO 2018184327 A1 WO2018184327 A1 WO 2018184327A1
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WO
WIPO (PCT)
Prior art keywords
passage
cooling
motor
casing
communication
Prior art date
Application number
PCT/CN2017/095223
Other languages
English (en)
Chinese (zh)
Inventor
张敬才
张胜川
李鹏
夏继
张诗香
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
Priority claimed from CN201710227044.1A external-priority patent/CN106953467A/zh
Priority claimed from CN201710224935.1A external-priority patent/CN106972698A/zh
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 WO2018184327A1 publication Critical patent/WO2018184327A1/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
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
    • 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.
  • high power and high torque density motors are being used more and more.
  • 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.
  • 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 the cooling pipes are respectively connected to each other so that the coolant can be
  • the cooling pump is circulated in the cooling passage on the casing and the rotating shaft, thereby taking away a large amount of heat generated during the operation of the motor, so that the motor reaches a cooling effect.
  • the motor that externally connects the cooling tube on the casing and the rotating shaft requires more components and a longer flow path, which makes the structure of the motor cooling system more complicated.
  • the present invention provides a motor cooling system including a casing, an end cover, a stator, a rotor and a rotating shaft.
  • the casing is provided with a first nozzle and a second nozzle
  • the motor cooling system includes a first cooling passage and a second cooling passage disposed between the first nozzle and the second nozzle, wherein The first cooling passage is disposed on the casing, and the 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 first passage disposed in the casing, one end of the first passage being connectable with the first nozzle; a second passage disposed in the rotating shaft; and a communication passage disposed at the An end of the motor, the communication passage is configured to communicate the other end of the first passage with one end of the second passage, and communicate the other end of the second passage with the second nozzle.
  • the motor cooling system further includes a communication member, the communication member is disposed at an end of the motor, and the communication passage is disposed in the communication member.
  • the connecting member is a flow splitter.
  • the second passage includes: a shaft hole disposed in the shaft; and a rotor water pipe disposed in the shaft hole and communicating with 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 passage and the shaft hole, The second communication passage is configured to communicate the rotor water pipe and the second water nozzle.
  • a partition is disposed in the casing of the motor, and the first cooling passage and the first passage are separated by the partition.
  • the partition is integrally formed with the casing.
  • the partition plate is respectively provided with a communication hole at a position corresponding to the first nozzle and the second nozzle, and both ends of the first cooling passage pass through the communication hole Communicating with the first nozzle and the second nozzle, respectively.
  • the first cooling passage is spiral or S-shaped along the axial direction of the motor, and the first passage has a spiral shape or an S shape along the axial direction of the motor.
  • the first cooling passage and the second cooling passage are parallel cooling passages.
  • a first cooling channel and a second cooling channel are disposed between the first nozzle and the second nozzle of the motor, and specifically, the first cooling channel is disposed at On the casing, the two ends of the first cooling passage are respectively connected to the first nozzle and the second nozzle.
  • the second cooling passage is composed of a first passage disposed in the casing, a second passage disposed in the rotating shaft, and a communication passage disposed at the end of the motor for communicating the first passage and the second passage, wherein the first passage One end of the first passage communicates with the first nozzle, and the other end of the first passage communicates with one end of the second passage through the communication passage, and the other end of the second passage communicates with the second nozzle through the communication passage. Therefore, the motor cooling system of the present invention Only two external nozzles are connected to the first nozzle and the second nozzle respectively, so that the casing and the rotor of the motor can be connected to the coolant, thereby simplifying the structure of the motor cooling system and reducing the complexity of the motor compared with the prior art. Degree, saving costs. Further, the cooling liquid can be double-cooled by the first cooling passage and the first passage provided on the casing, thereby improving the cooling efficiency of the motor with respect to the prior art.
  • the present invention provides another motor cooling system, the motor comprising a casing, an end cover, a stator, a rotor and a rotating shaft, the casing being provided with a first nozzle and a second nozzle, the cooling
  • the system includes: a first cooling passage disposed on the casing, one end of the first cooling passage being communicable with the first nozzle; and a second cooling passage disposed on the casing, the One end of the two cooling passages can communicate with the second nozzle; a third cooling passage disposed in the rotating shaft; and a communication passage disposed at an end of the motor, the communication passage being used for The other end of the first cooling passage communicates with one end of the third cooling passage, and the other end of the second cooling passage communicates with the other end of the third cooling passage.
  • the cooling system further includes a communication member disposed at an end of the motor, and the communication passage is disposed in the communication member.
  • the connecting member is a flow splitter.
  • the third cooling passage includes: a rotating shaft hole disposed in the rotating shaft; and a rotor water pipe disposed in the rotating shaft hole and communicating with the rotating shaft hole; One end of the rotor water pipe is fixed to an 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 the rotor water pipe and the second cooling passage.
  • a first water pipe and a second water pipe are disposed on the motor, and the first water pipe passes through the first The water inlet is only in communication with the first cooling passage, and the second water conduit is in communication with the second cooling passage through the second nozzle.
  • the casing includes a first casing and a second casing, and the first cooling passage and the second cooling passage are respectively disposed at the first casing and the Said inside the second casing.
  • the casing includes a first casing and a second casing, and a partition is disposed between the first casing and the second casing, the first A cooling passage and the second cooling passage are disposed on the first casing and the second casing, respectively.
  • the first cooling passage is spiral or S-shaped along the axial direction of the motor
  • the second cooling passage is spiral or S-shaped along the axial direction of the motor.
  • the first cooling passage and the second cooling passage and the third cooling passage form a series cooling passage through the communication passage.
  • a first cooling passage having one end communicating with the first nozzle and a second cooling passage having one end communicating with the second nozzle are disposed on the casing of the motor, a third cooling passage is disposed on the rotating shaft of the motor, and a communication passage is disposed at an end of the motor, so that the other end of the first cooling passage and the other end of the second cooling passage can communicate through the communication passage and the third passage, thereby further cooling liquid It can be circulated in the casing of the motor and in the rotating shaft in turn, so as to take away the heat generated by the stator and the rotor during the operation of the motor.
  • 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 cooling liquid can be recooled to the casing by the first cooling passage and the second cooling passage provided on the casing, thereby improving the cooling efficiency of the motor with respect to the prior art.
  • Figure 1 is a cross-sectional view of a motor cooling system in accordance with one embodiment of the present invention
  • Figure 2 is an effect view of the motor cooling system of Figure 1;
  • FIG 3 is a schematic diagram of the motor cooling system of Figure 1;
  • FIG. 4 is a schematic view showing the effect of a motor cooling system according to another embodiment of the present invention.
  • Figure 5 is a cross-sectional view of the motor cooling system of Figure 4.
  • Figure 6 is a cross-sectional view of still another embodiment of the motor cooling system 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.
  • 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 FIG. 1 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 casing 1 includes an inner casing 11 and an outer casing 12, and the inside of the inner casing 11 is provided with a first cooling passage 111, and the inside of the outer casing 12 is provided with a first passage 121.
  • the first cooling passage 111 and the first passage 121 are both spiral or S-shaped cooling passages along the axial direction of the motor, so as to increase the contact area between the casing 1 and the coolant, and improve the heat dissipation efficiency of the motor. Further, the left end of the first cooling passage 111 shown in FIG.
  • the first water pipe 13 disposed on the casing 1 communicates with the first water pipe 13 disposed on the casing 1 through the first nozzle, and the right end of the first cooling passage 111 shown in FIG. 1 passes through the second nozzle.
  • the second water tubes 14 disposed on the casing 1 are in communication.
  • the left end of the first passage 121 shown in FIG. 1 passes through the first nozzle and the first one disposed on the casing 1.
  • the water pipes 13 are in communication
  • the right end of the first passage 121 shown in Fig. 1 communicates with the second passage 21 in the rotary shaft 2 through a communication passage in the flow divider 3.
  • a first groove (not shown) is disposed on the outer wall of the inner casing 11, and a second groove (not shown) is disposed on the inner wall of the outer casing 12, and A partition 15 is disposed between the inner casing 11 and the outer casing 12, so that the first groove can form a first cooling passage 111 and a second groove between the first groove and the partition 15 in the assembled state.
  • a first passage 121 is formed with the partition 15.
  • the above structures of the inner casing 11 and the outer casing 12 can optimize the manufacturing process of the first cooling passage 111 and the first passage 121, for example, using a turning process instead of the die casting process, and at the same time
  • a sealing ring (not shown) is disposed between the two ends of the partition plate 15 and the inner casing 11 and the outer casing 12 . .
  • the partition plate 15 is respectively provided with a communication hole (not shown) at a position corresponding to the first water pipe 13 and the second water pipe 14, and the two ends of the first cooling passage 111 can respectively pass through the communication hole and the first water pipe 13 is in communication with the second water pipe 14.
  • the person skilled in the art can also remove the partition plate 15 as needed, and in the assembled state of the casing 1, the first groove can be formed with the inner wall of the outer casing 12 to form a first cooling passage 111, the second concave
  • the first passage 121 is formed between the groove and the outer wall of the inner casing 11, so that the assembly process of the casing 1 can be simplified.
  • a seal ring may be disposed between the first cooling passage 111 and the first passage 121.
  • the person skilled in the art can integrally cast the partition plate 15 with the inner casing 11 and the outer casing 12 as needed.
  • a second passage 21 is disposed 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 second 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.
  • those skilled in the art can also provide the second passage 21 to a structure of another shape as needed, for example, the annular cavity 211 is arranged in a spiral shape along the axis of the rotary shaft 2.
  • the flow splitter 3 is preferably detachably disposed at the end of the motor by bolts (not shown) to facilitate machining, manufacture 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 by other connections, such as welding, as needed, and the person skilled in the art can also integrally form the shunt 3 and 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 a first communication channel 311 is disposed in the first connecting beam 31, and a second communication channel 321 is disposed in the second connecting beam 32.
  • the passage 311 and the second communication passage 321 together constitute the communication passage described above.
  • the first communication passage 311 is configured to communicate the first passage 121 and the second passage 21 (such as the annular cavity 211), and the second communication passage 321 is configured to connect the second passage 21 (such as the inner cavity 212) with the casing 1
  • the second water pipe 14 is in communication such that the first passage 121, the second passage 21, the first communication passage 311, and the second communication passage 321 form a second cooling passage, so that the coolant can flow directly from the casing 1 into the rotating shaft 2
  • the shaft and rotor are cooled.
  • the second communication passage 321 communicates with the second water pipe 14 through the communication hole 122 provided in the outer casing 12, and preferably the first passage 121 and the communication hole 122 are not connectable on the outer casing 12.
  • 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 relatively large diameter pipe.
  • the channel connecting the first channel 121 and the annular cavity 211 and the channel connecting the communication hole 122 and the inner cavity 212 may be one piece or multiple pieces, such as two or three. , five, and so on.
  • the motor cooling system includes a first cooling passage 111 for cooling the stator of the motor and the casing 1, and a second cooling passage (not shown) for mainly rotating the shaft 2 of the motor, wherein the second The cooling passage mainly includes a first passage 121 disposed on the casing 1, a second passage 21 disposed in the rotating shaft 2, and a communication passage provided on the flow divider 3 for communicating the first passage 121 and the second passage 21 (311) And 321).
  • the coolant enters the first cooling passage 111 and the first passage 121 through the first water pipe 13, respectively, wherein the coolant flowing through the first passage 121 flows into the annular chamber 211 through the first communication passage 311.
  • the inner cavity 212, the second communication passage 321, the communication hole 122 and the second water pipe 14 flow out; the coolant flowing through the first cooling passage 111 flows directly from the other end of the first cooling passage 111 through the second water pipe 14.
  • a person skilled in the art can also flow the coolant from the second water pipe 14 into the motor as needed, and flow out from the first water pipe 13.
  • the coolant is water, or other media may be selected as a coolant, such as a hydraulic fluid, as desired 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 cooling passage 111 in the inner casing 11 is shunted.
  • the device 3 communicates with the second passage 21 in the rotating shaft 2 such that both ends of the first passage 121 in the outer casing 12 directly communicate with the first water pipe 13 and the second water pipe.
  • the cooling passages (111, 121) on the casing 1 are communicated with the second passage 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 cooling liquid can double-cool the casing 1 through the first cooling passage 111 and the first passage 121 provided on the casing 1, thereby improving the cooling efficiency of the motor with respect to the prior art.
  • the motor cooling system mainly includes a casing 1, a stator (not shown), a rotor (not shown), a rotating shaft 2, and a motor end.
  • the casing 1 includes an inner casing 11 as a first casing and an outer casing 12 as a second casing, and the inside of the inner casing 11 is provided with a first cooling passage 111, and the outer casing 12 is internally disposed. There is a second cooling passage 121.
  • the first cooling passage 111 and the second cooling passage 121 are both spiral or S-shaped cooling passages along the axial direction of the motor, so as to increase the contact area between the casing 1 and the coolant, and improve the heat dissipation efficiency of the motor.
  • the left end of the first cooling passage 111 shown in FIG. 5 communicates with the first water pipe 13 through a first nozzle (not shown) provided on the casing 1, and the second cooling passage 111 shown in FIG. The left end is in communication with the second water pipe 14 through a second nozzle (not shown) provided on the casing 1.
  • the casing 1 is divided into an inner casing 11 and an outer casing 12, and a first cooling passage 111 and a second cooling passage are respectively disposed on the inner casing 11 and the outer casing 12. 121, can facilitate the processing, manufacture and maintenance of the casing 1.
  • a third cooling passage 21 is disposed in the rotating 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.
  • the annular cavity 211 and the inner cavity 212 of the rotor water pipe together form a third cooling passage 21 for allowing coolant to flow from the annular cavity 211 to the inner cavity 212. Or flowing from the inner cavity 212 to the annular cavity 211, so that the flowing coolant can quickly carry away the heat of the rotating shaft 2.
  • the person skilled in the art can also arrange the third cooling passage 21 into a structure of another shape as needed, for example, the annular cavity 211 is arranged in a spiral shape along the axis of the rotating shaft 2.
  • the flow splitter 3 is preferably detachably disposed at the end of the motor by bolts (not shown) to facilitate machining, manufacture and maintenance of the motor and shunt 3, or can be used by those skilled in the art. If necessary, the shunt 3 is fixedly connected to the end of the motor by other means of connection, such as welding, and the person skilled in the art can also integrally form the shunt 3 and the end of the motor as a single unit. Further, the flow divider 3 includes a first connecting beam 31 and a second connecting beam 32, and a first communication channel 311 is disposed in the first connecting beam 31, and a second communication channel 321 is disposed in the second cooling beam 32.
  • the first communication channel 311 is configured to communicate with the first cooling channel 111 and the third cooling channel 21 (eg, the annular cavity 211), and the second communication channel 321 is configured to communicate with the second cooling channel 121 and the third cooling channel 21 (eg, the inner cavity 212)
  • the first cooling passage 111, the first communication passage 311, the third cooling passage 21, the second communication passage 321 and the second cooling passage 121 are sequentially connected in series as an integral cooling passage, thereby enabling the coolant to pass from the first water conduit. 13 enters the first cooling passage 111 and finally flows out of the second water pipe 14 via the second cooling passage 121.
  • 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 passage 121 communicates with the annular chamber 211 and the inner chamber 212 of the third cooling passage 21, respectively, for example, the communicating member is a pipe having a larger diameter.
  • the channel connecting the first cooling channel 111 and the annular cavity 211 and the channel connecting the second cooling channel 121 and the inner cavity 212 may be one piece or multiple pieces, such as two. Articles, three, five, etc.
  • a spacer 15 is added to the second embodiment.
  • a partition 15 is disposed between the inner casing 11 and the outer casing 12 for partitioning the first cooling passage 111 and the second cooling passage 121.
  • a first groove (not shown) may be disposed on the outer wall of the inner casing 11, and a second groove (not shown) may be disposed on the inner wall of the outer casing 12 to make the machine
  • the first groove can form a first cooling passage 111 with the partition 15, and the second cooling passage 121 is formed between the second groove and the partition 15, thereby facilitating the casing 1 Processing, manufacturing and maintenance.
  • the partition plate 15 is respectively provided with a communication hole (not shown) at a position corresponding to the first water pipe 13 and the second water pipe 14, so that the left end of the first cooling passage 111 and the first water pipe shown in FIG. 13 is connected, and the left end of the second cooling passage 111 shown in FIG. 5 is in communication with the second water pipe 14.
  • the above structures of the inner casing 11 and the outer casing 12 can optimize the manufacturing process of the first cooling passage 111 and the second cooling passage 121, for example, using a turning process instead of the die casting process, When the first cooling passage 111 and the second cooling passage 121 are damaged and leaked, it is convenient to disassemble and repair. It should be noted that, in order to prevent the water leakage phenomenon of the casing 1 in the assembled state, a sealing ring is further disposed between the two ends of the partition plate 15 and the inner casing 11 and the outer casing 12.
  • the partition plate 15 is removed on the basis of the second embodiment, and in the assembled state of the casing 1, the first groove can be made externally
  • a first cooling passage 111 is formed between the inner walls of the casing 12, and a third cooling passage 21 is formed between the second recess and the outer wall of the inner casing 11, thereby simplifying the assembly process of the casing 1.
  • a person skilled in the art can integrally cast the partition plate 15 with the inner casing 11 and the outer casing 12 as needed.
  • the motor cooling system mainly includes a first cooling passage 111 and a second cooling passage 121 for cooling the stator and the casing 1 of the electric machine for cooling the rotor and the rotating shaft
  • the third cooling passage 21 of the second cooling passage 21 and the communication passage (not shown) for communicating the third cooling passage 21 with the first cooling passage 111 and the second cooling passage 121, respectively.
  • the communication channel includes a first communication channel 311 and a second communication channel
  • the first communication passage 311 is configured to communicate with the first cooling passage 111 and the third cooling passage 21, and the second communication passage 321 is configured to communicate the second cooling passage 121 and the third cooling passage 21.
  • the coolant can enter the first cooling passage 111 from the first water pipe 13 and then flow out from the second water pipe 14 through the first communication passage 311, the annular chamber 211, the inner chamber 212, the second communication passage 321, and the second cooling passage 121. .
  • the coolant is water, or other media may be selected as a coolant, such as a hydraulic fluid, as desired by those skilled in the art.
  • the cooling passages (111, 121) on the casing 1 are communicated with the third cooling passages 21 on the rotating shaft 2 through the first connecting beam 31 and the second connecting beam 32, so that the motor only It is necessary to provide an inlet pipe and an outlet pipe (the first water pipe 13 and the second water pipe 14) to 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 cooling liquid can be recooled to the casing 1 by the first cooling passage 111 and the second cooling passage 121 provided on the casing 1, thereby improving the cooling efficiency of the motor with respect to the prior art.

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

Abstract

La présente invention appartient au domaine des moteurs et concerne plus particulièrement un système de refroidissement de moteur. La présente invention vise à résoudre le problème de structures de système de refroidissement complexes dans des moteurs existants. Le système de refroidissement de moteur comprend un premier canal de refroidissement et un second canal de refroidissement agencés entre un premier tuyau d'eau et un second tuyau d'eau sur un boîtier, le premier canal de refroidissement étant agencé sur le boîtier, le second canal de refroidissement comprenant : un premier canal, agencé à l'intérieur du boîtier ; un second canal, agencé à l'intérieur d'un arbre rotatif ; un canal de communication, agencé au niveau d'une partie d'extrémité d'un moteur, le premier canal étant en communication avec le second canal par l'intermédiaire du canal de communication, de façon à former le second canal de refroidissement. Par conséquent, le système de refroidissement de moteur permet à un liquide de refroidissement de réduire simultanément la température d'un stator et d'un rotor du moteur, ce qui permet d'augmenter l'efficacité de refroidissement du moteur et de réduire la complexité du système de refroidissement de moteur.
PCT/CN2017/095223 2017-04-07 2017-07-31 Système de refroidissement de moteur WO2018184327A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201710224935.1 2017-04-07
CN201710227044.1 2017-04-07
CN201710227044.1A CN106953467A (zh) 2017-04-07 2017-04-07 电机冷却系统
CN201710224935.1A CN106972698A (zh) 2017-04-07 2017-04-07 电机冷却系统

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WO2018184327A1 true WO2018184327A1 (fr) 2018-10-11

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Cited By (5)

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CN113285552A (zh) * 2021-06-28 2021-08-20 卧龙电气驱动集团股份有限公司 一种用于电机的壳体及电机
CN113819137A (zh) * 2021-10-21 2021-12-21 张家港市帝达机械有限公司 芯轴冷却装置
CN113890249A (zh) * 2021-09-28 2022-01-04 上海汽车变速器有限公司 电机组件及电机冷却系统
CN113991916A (zh) * 2021-11-04 2022-01-28 珠海格力电器股份有限公司 电机机壳、电机、空压机系统和家用电器
GB2607161A (en) * 2021-03-18 2022-11-30 Cummins Inc Cooling a rotating electrical machine

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