WO2024036608A1 - Dispositif de guidage centripète pour un fluide, et système d'alimentation pour un véhicule - Google Patents

Dispositif de guidage centripète pour un fluide, et système d'alimentation pour un véhicule Download PDF

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Publication number
WO2024036608A1
WO2024036608A1 PCT/CN2022/113635 CN2022113635W WO2024036608A1 WO 2024036608 A1 WO2024036608 A1 WO 2024036608A1 CN 2022113635 W CN2022113635 W CN 2022113635W WO 2024036608 A1 WO2024036608 A1 WO 2024036608A1
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WO
WIPO (PCT)
Prior art keywords
fluid
guide device
opening
guide
main body
Prior art date
Application number
PCT/CN2022/113635
Other languages
English (en)
Chinese (zh)
Inventor
郭淮伟
蔡向阳
吴清
Original Assignee
舍弗勒技术股份两合公司
郭淮伟
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 舍弗勒技术股份两合公司, 郭淮伟 filed Critical 舍弗勒技术股份两合公司
Priority to PCT/CN2022/113635 priority Critical patent/WO2024036608A1/fr
Publication of WO2024036608A1 publication Critical patent/WO2024036608A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54—Transmission for changing ratio
    • B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating

Definitions

  • the present application relates to the field of fluid guidance, and specifically to a guidance device for centripetally guiding fluid and a vehicle power system including the guidance device.
  • new energy vehicles such as electric vehicles integrate the drive motor, planetary gear reducer and braking system in the wheel space to form an in-wheel motor drive system as the vehicle power system to drive the wheels to rotate.
  • a cooling mechanism and a lubricating mechanism need to be provided to cool and lubricate each component, and a guiding device for guiding the fluid used for cooling and lubricating needs to be installed so that the fluid can be smoothly guided to the object. part.
  • One object of the present application is to provide a fluid centripetal guide device that can achieve centripetal guide of fluid (eg, oil) with a relatively simple structure.
  • Another object of the present application is to provide a vehicle power system including the above-mentioned fluid centripetal guide device.
  • This application provides a fluid centripetal guiding device, including:
  • a main body portion having an annular shape and formed with an inlet hole penetrating in the radial direction;
  • a plurality of guide parts arranged at intervals in the circumferential direction of the main body part, the guide parts being fixed to the outer peripheral surface of the main body part and protruding from the outer peripheral surface toward the radially outer side,
  • the guide portion is formed with an opening and a channel, the opening is open toward one circumferential side, the channel extends from the opening to the inlet hole, and the radially outer wall surface of the channel is from the opening toward the inlet hole.
  • the inlet hole extends in a curved manner for guiding fluid flowing in from the opening toward the inlet hole during rotation of the fluid centripetal guide device.
  • the radially outer wall surface extends toward the radially inner side while extending from the opening toward the other side in the circumferential direction.
  • the width of the channel gradually narrows from the opening toward the inlet hole, and a portion of the outer peripheral surface located within the channel is formed with an inclination toward the inlet hole. guide surface.
  • the fluid centripetal guide device further includes a mounting portion, which is fixed to the inner peripheral surface of the main body portion and protrudes radially inwardly from the inner peripheral surface, The mounting portion and the inlet hole are arranged staggered.
  • the mounting portion is formed in a convex shape extending linearly along the axial direction of the main body portion.
  • This application also provides the following vehicle power system, including the fluid centripetal guiding device described in any one of the above technical solutions.
  • it also includes a motor shaft, the motor shaft is formed into a hollow structure, and the motor shaft is also formed with a guide hole penetrating its wall,
  • the fluid centripetal guide device is fixed to the motor shaft, and the inlet hole of the fluid centripetal guide device is connected with the guide hole.
  • the motor shaft is formed with a flange portion, the flange portion protrudes toward the radially outer side relative to other parts of the motor shaft, and the main body of the fluid centripetal guide device The outer sleeve is fixed on the radial outer side of the flange part.
  • the outer circumferential surface of the flange portion is formed with a mounting groove, the mounting groove is open toward one axial side or the other axial side, and the convex strips of the fluid centripetal guide device The shaped mounting part is mounted in the mounting groove.
  • it also includes an output shaft, a bearing and a sealing assembly, the bearing is located in the installation space between the motor shaft and the output shaft, and the sealing assembly is used to seal the installation space.
  • One end of the guide hole can guide the fluid toward the installation space.
  • the present application provides the following fluid centripetal guide device, which includes an annular main body part and a plurality of guide parts protruding from the outer peripheral surface of the main body part, and each guide part is formed with the main body part.
  • the radially outer wall surface of the channel is used to guide the fluid entering from the opening of the channel to the inlet hole during the operation of the fluid centripetal guide device.
  • the fluid centripetal guiding device of the present application can realize the centripetal guiding function of fluid (eg, oil) with a relatively simple structure.
  • the fluid centripetal guide device according to the present application is easy to manufacture and has low cost, which is conducive to large-scale industrial production.
  • the fluid centripetal guide device is relatively small in size, takes up less installation space, and can be adapted to the vehicle power system. middle.
  • the present application also provides a vehicle power system including the above-mentioned fluid centripetal guide device, which can use the fluid centripetal guide device to guide fluid to an object component so as to cool and lubricate it.
  • FIG. 1A is a perspective view illustrating a centripetal fluid guiding device according to an embodiment of the present application.
  • FIG. 1B is a schematic front view showing the fluid centripetal guide device in FIG. 1A .
  • FIG. 1C is a schematic perspective view of the fluid centripetal guiding device in FIG. 1A in cross-section, with the cross-section lines omitted.
  • FIG. 1D is a schematic side view showing the fluid centripetal guide device in FIG. 1A .
  • FIG. 2A is a schematic cross-sectional view showing a partial structure of a vehicle power system (taking an in-wheel motor drive system as an example) according to an embodiment of the present application.
  • the vehicle power system includes the fluid centripetal structure shown in FIG. 1A guide device and the section lines are omitted from the figure.
  • Fig. 2B is a schematic perspective view showing an assembly of both the fluid centripetal guide device and the motor shaft of the vehicle power system in Fig. 2A.
  • FIG. 2C is a schematic perspective view showing a motor shaft of the vehicle power system in FIG. 2A .
  • Fluid centripetal guide device 11 main body; 11h inlet hole; 11s guide surface; 12 guide part; 12p opening; 12h channel; 13 installation part;
  • axial direction refers to the axial direction, radial direction and circumferential direction of the fluid centripetal guide device (main part) of the application.
  • radial direction refers to the left side in FIGS. 1D and 2A
  • circumferential direction refers to the right side in FIGS. 1D and 2A .
  • transmission coupling means that two components are connected to each other in a manner capable of transmitting torque, including both direct and indirect connections between the two components.
  • the fluid centripetal guide device 1 includes a main body part 11 , a guide part 12 and a mounting part 13 formed into one body.
  • the guide part 12 is fixedly provided on the main body part 11
  • the mounting portion 13 is fixedly provided on the inner peripheral surface of the main body 11 .
  • the main body portion 11 is formed into an annular shape extending continuously along the entire circumference along the circumferential direction C.
  • the main body part 11 is formed with three inlet holes 11h penetrating in the radial direction R. Each inlet hole 11h matches one guide part 12 and communicates with the channel 12h formed by the guide part 12.
  • the portion of the outer peripheral surface of the main body 11 located in the channel 12h is also formed with a guide surface 11s.
  • the main body 11 can be cut to form the guide surface 11s, so that the guide surface 11s is inclined toward the inlet hole 11h to assist in guiding the fluid entering from the inlet. Flow to the entry hole 11h.
  • the three guide portions 12 are evenly spaced apart in the circumferential direction C.
  • Each guide portion 12 is fixed to the outer peripheral surface of the main body portion 11 and protrudes from the outer peripheral surface toward the radially outer side.
  • Each guide portion 12 is formed with an opening 12p open toward one side in the circumferential direction (for example, the downstream side in the counterclockwise direction shown in FIGS. 1A to 1C ).
  • the guide part 12 is also formed with a passage 12h extending from the opening 12p to the inlet hole 11h.
  • the passage 12h actually consists of the radially outer wall, the axial one side wall, the other axial side wall of the guide part 12 and the main body part 11 Surrounding limits.
  • the height of the channel 12h gradually decreases from the opening 12p toward the inlet hole 11h, because the radially outer wall surface extends curvedly from the opening 12p toward the inlet hole 11h.
  • the radially outer wall surface extends from the opening 12p toward the other side in the circumferential direction (for example, the upstream side in the counterclockwise direction shown in FIGS. 1A to 1C ) while extending toward the radially inner side, whereby the radially outer wall surface serves to During the rotation of the fluid centripetal guide device 1 (for example, in the counterclockwise direction shown in FIGS.
  • the fluid flowing in from the opening 12p is guided toward the inlet hole 11h; on the other hand, as shown in FIG. 1D, the channel The (axial) width of 12h may gradually decrease (narrow) from the opening 12p towards the inlet hole 11h, thereby facilitating the flow of fluid from the opening 12p towards the inlet hole 11h.
  • the mounting portion 13 is fixed to the inner peripheral surface of the main body 11 and protrudes radially inward from the inner peripheral surface.
  • the mounting portion 13 is staggered from the inlet hole 11h, and is located at a position corresponding to the guide surface 11s in the radial direction R, thereby improving the structural strength of the portion of the main body 11 where the guide surface 11s is formed by cutting.
  • the mounting portion 13 is formed in a convex shape (flat key) extending along the axial direction A of the main body portion 11, and is used for mounting with the mounting groove 2c of the motor shaft 2 of the vehicle power system (wheel hub motor drive system) described below. (keyway) matching assembly.
  • the vehicle power system is an in-wheel motor drive system.
  • the in-wheel motor drive system includes the above-mentioned fluid centripetal guide device 1, motor shaft 2, output shaft 3, assembled together. Bearing 4 and seal assembly 5.
  • the motor shaft 2 and the rotor of the driving motor can be transmission coupled through the rotor bracket, and the interior of the motor shaft 2 is formed into a hollow structure.
  • the output shaft 3 and the hub of the wheel can be connected together through multiple connectors.
  • the output shaft 3 can also be connected to the motor shaft 2 through a planetary gear reducer. A part of the output shaft 3 is inserted into the motor shaft 2.
  • the bearing 4 can be a needle roller bearing, and the inner ring of the bearing 4 is fixed to the output shaft 3.
  • the motor shaft 2 is also used as the outer ring of the bearing 4, so that the bearing 4 plays a radial support role.
  • the bearing 4 is located in the installation space S between the motor shaft 2 and the output shaft 3.
  • the sealing assembly 5 is located at the other axial end of the installation space S for sealing the other axial end of the installation space S.
  • the motor shaft 2 includes a flange part 21 , a first gear part 22 , a second gear part 23 and a bracket mounting part 24 .
  • the flange portion 21 protrudes toward the radially outer side relative to other parts of the motor shaft 2 , and the main body portion 11 of the fluid centripetal guide device 1 is sleeved and fixed on the radial outer side of the flange portion 21 . Since the flange portion 21 protrudes more toward the radially outer side, the guide portion 12 of the fluid centripetal guide device 1 rotates during the operation of the hub motor drive system, thereby repeatedly executing the instructions stored in the housing of the hub motor drive system. The action of scooping up the fluid further utilizes the rotation of the fluid centripetal guide device 1 to guide the cooling fluid to flow centripetally along the channel 12h.
  • each mounting groove 2c is formed on the outer peripheral surface of the flange portion 21.
  • the three mounting grooves 2c are evenly distributed in the circumferential direction C.
  • the shape and size of each mounting groove 2c are consistent with the fluid.
  • the mounting portion 13 of the centripetal guide device 1 has a corresponding shape and size.
  • the mounting groove 2c has an opening that opens toward the axial side.
  • the mounting portion 13 of the fluid centripetal guide device 1 can be inserted into and installed into the mounting groove 2c from the axial side through the opening of the mounting groove 2c.
  • the motor shaft 2 is also formed with a guide hole 2h penetrating its wall.
  • the opening of the guide hole 2 h that opens toward the radially outer side is located on the outer peripheral surface of the flange portion 21 and is used to communicate with the inlet hole 11 h of the main body portion 11 of the fluid centripetal guide device 1 .
  • the opening of the guide hole 2 h that opens toward the radially inward side communicates with the installation space S between the motor shaft 2 and the input shaft, and is used to guide fluid toward the installation space S.
  • the guide hole 2h extends obliquely from one axial side toward the other axial side while extending from the radially inner side toward the radial outer side.
  • first gear portion 22 is located on one axial side of the flange portion 21 , and the first gear portion 22 can be drivingly coupled with the sun gear of the planetary gear reducer.
  • the second gear portion 23 is located at the other axial side of the flange portion 21 , and the second gear portion 23 can be drivingly coupled with the brake disc of the brake assembly.
  • the bracket mounting part 24 is located between the flange part 21 and the second gear part 23, and the bracket mounting part 24 can be fixed with the rotor bracket.
  • the fluid centripetal guide device 1 rotates together with the motor shaft 2, and the guide part 12 can continuously move from the hub motor drive system to the hub motor drive system.
  • the fluid (such as oil) is scooped up in the housing and further directed centripetally into the installation space S.
  • the flow path of the fluid is as follows: opening 12p of the guide part 12 ⁇ channel 12h of the guide part 12 ⁇ inlet hole 11h of the main body part 11 ⁇ guide hole 2h of the motor shaft 2 ⁇ installation space S ⁇ bearing 4 and seal assembly 5. In this way, the fluid can cool and lubricate the bearing 4 and seal assembly 5.
  • the in-wheel motor drive system as a vehicle power system according to an embodiment of the present application may also include a housing, a drive motor, a rotor bracket, a planetary gear reducer, a brake assembly, and other bearings and sealing assemblies.
  • the fluid can typically be oil stored in the oil tank at the bottom of the casing of the vehicle power system.
  • the oil guided into the installation space S can not only be used to cool the bearing 4 and the seal assembly. 5, and can also lubricate the bearing 4 and seal assembly 5.
  • the bearing 4 uses the motor shaft 2 as the outer ring, but the application is not limited to this.
  • the bearing 4 with an independent outer ring can also be used for radial support, and the outer ring can be connected with the motor. Shaft 2 is fixed together.
  • the bearing 4 itself may also have no outer ring or both the outer ring and the inner ring.
  • the bearing 4 may be a bearing including a plurality of rolling elements and a cage.
  • the number and arrangement of the guide portions 12 of the fluid centripetal guide device 1 of the present application are not limited to those described in the above specific embodiments, but can be changed as needed.
  • the opening 12p of the guide portion 12 can be oriented in the same direction as the rotation direction of the motor shaft 2 when the vehicle moves forward, that is, the opening 12p faces the rotation direction of the motor shaft 2 when the vehicle moves forward. on the downstream side.
  • the fluid centripetal guide device 1 may include a plurality of guide portions 12 with openings 12p facing oppositely, so that the fluid centripetal guide device 1 can play a role of centripetally guiding the fluid regardless of the rotation direction of the fluid centripetal guide device 1 .
  • the fluid centripetal guiding device 1 of the present application is not limited to use.
  • vehicle power systems such as electric axle drive systems and hybrid drive systems.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Reciprocating Pumps (AREA)

Abstract

L'invention concerne un dispositif de guidage centripète pour un fluide. Le dispositif comprend : une partie corps principal (11), la partie corps principal présentant une forme annulaire, un trou d'admission (11h) étant formé à l'intérieur de celle-ci ; et une pluralité de parties de guidage (12), la partie de guidage (12) étant fixée sur une surface périphérique de la partie corps principal (11) et faisant saillie depuis la surface périphérique vers un côté externe radial. La partie de guidage (12) comprend une ouverture (12p) et un passage (12h), l'ouverture (12p) étant ouverte vers un côté dans un sens circonférentiel, et le passage (12h) s'étendant de l'ouverture (12p) au trou d'admission (11h). Une surface de paroi externe radiale du passage (12h) s'étend selon une courbe de l'ouverture (12p) au trou d'admission (11h), et est utilisée pour guider un fluide s'écoulant de l'ouverture (12p) au trou d'admission (11h) lors de la rotation du dispositif de guidage centripète (1) pour un fluide. Le dispositif de guidage centripète pour un fluide de la présente demande peut réaliser la fonction de guidage centripète d'un fluide, tel que de l'huile, à l'aide d'une structure relativement simple. L'invention concerne en outre un système d'alimentation pour un véhicule, le système d'alimentation comprenant le dispositif de guidage centripète pour un fluide.
PCT/CN2022/113635 2022-08-19 2022-08-19 Dispositif de guidage centripète pour un fluide, et système d'alimentation pour un véhicule WO2024036608A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2022/113635 WO2024036608A1 (fr) 2022-08-19 2022-08-19 Dispositif de guidage centripète pour un fluide, et système d'alimentation pour un véhicule

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2022/113635 WO2024036608A1 (fr) 2022-08-19 2022-08-19 Dispositif de guidage centripète pour un fluide, et système d'alimentation pour un véhicule

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WO2024036608A1 true WO2024036608A1 (fr) 2024-02-22

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012105759A2 (fr) * 2011-02-01 2012-08-09 Ko Young-Eun Appareil générateur d'énergie éolienne comportant un guide de vent
CN102695898A (zh) * 2009-11-25 2012-09-26 爱信艾达株式会社 变速机构的润滑结构
CN210780419U (zh) * 2018-12-13 2020-06-16 本田技研工业株式会社 电动驱动单元的润滑·冷却结构
CN113738827A (zh) * 2021-08-27 2021-12-03 舍弗勒技术股份两合公司 集油环及行星齿轮机构
CN217056022U (zh) * 2020-12-09 2022-07-26 丰田纺织株式会社 轴承装置的冷却构造

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102695898A (zh) * 2009-11-25 2012-09-26 爱信艾达株式会社 变速机构的润滑结构
WO2012105759A2 (fr) * 2011-02-01 2012-08-09 Ko Young-Eun Appareil générateur d'énergie éolienne comportant un guide de vent
CN210780419U (zh) * 2018-12-13 2020-06-16 本田技研工业株式会社 电动驱动单元的润滑·冷却结构
CN217056022U (zh) * 2020-12-09 2022-07-26 丰田纺织株式会社 轴承装置的冷却构造
CN113738827A (zh) * 2021-08-27 2021-12-03 舍弗勒技术股份两合公司 集油环及行星齿轮机构

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