Power generation and driving integrated device

Abstract

The invention discloses a power generation and driving integrated device, which comprises a motor shell, a motor, a planetary gear mechanism, a transmission gear set and a controller, and is characterized in that the motor, the planetary gear mechanism and the transmission gear set are accommodated in the motor shell; the planetary gear mechanism comprises a sun gear, a planet carrier, a gear ring and a plurality of planetary gears, the planetary gears are installed on the planet carrier, the planetary gears are meshed with the sun gear and the inner ring of the gear ring respectively, the planet carrier is connected with the engine, the motor comprises a stator assembly and a rotor assembly contained in the stator assembly, and the rotor assembly is connected with the sun gear; the transmission gear set comprises a driving gear and a driven gear which are connected, the driving gear is meshed with the outer ring of the gear ring, and the driven gear is used for being connected with wheels of a vehicle. And the controller is fixed above the motor shell. The power generation and drive integrated device is compact in overall layout, the motor can generate power and drive, and therefore the overall size of a hybrid power system is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a power generation and drive integrated device. Background Art

[0002] In some existing hybrid system vehicles, the engine and the motor are used for hybrid drive. There are two motors in the prior art. One motor is used as a generator, and the other motor is used as a drive motor. Specifically, the engine drives the generator to generate electricity, and then the generator supplies power to the drive motor to drive the vehicle.

[0003] However, in the prior art, the generator is connected to the engine through a connecting gear. The generator and the connecting gear are separately provided, and the generator is only used for generating electricity and cannot drive the vehicle. Therefore, the structure of the existing hybrid system is complex and the volume is too large. Summary of the Invention

[0004] Based on this, in view of the technical problem that the overall volume of the existing hybrid system is too large, it is necessary to provide a power generation and drive integrated device.

[0005] The present invention provides a power generation and drive integrated device, including: a motor housing, a motor, a planetary gear mechanism, a transmission gear set, and a controller. The motor, the planetary gear mechanism, and the transmission gear set are accommodated in the motor housing;

[0006] The planetary gear mechanism includes a sun gear, a planetary carrier, a ring gear, and a plurality of planetary gears. The plurality of planetary gears are installed on the planetary carrier, and the planetary gears are respectively meshed with the sun gear and the inner ring of the ring gear. The planetary carrier is connected to the engine. The motor includes a stator assembly and a rotor assembly accommodated in the stator assembly. The rotor assembly is connected to the sun gear;

[0007] The transmission gear set includes a connected driving gear and a driven gear. The driving gear is meshed with the outer ring of the ring gear, and the driven gear is used for connecting with the vehicle wheel;

[0008] The controller is fixed above the motor housing.

[0009] Further, it further includes a braking mechanism for locking or unlocking the ring gear. The braking mechanism is communicatively connected to the controller.

[0010] Further, it further includes a locking mechanism for locking or unlocking the planetary carrier. The locking mechanism is communicatively connected to the controller.

[0011] Further, the motor housing includes a motor cavity for accommodating the stator assembly and the rotor assembly, and a transmission cavity for accommodating the planetary gear mechanism and the transmission gear set. A controller housing is fixedly connected above the motor housing, and the controller is accommodated in the controller housing.

[0012] Furthermore, the top of the transmission cavity is separated into a motor three-phase wire connection cavity by a partition rib. The motor three-phase wires electrically connected to the motor are accommodated in the motor three-phase wire connection cavity. The motor three-phase wire connection seat of the controller is inserted into the motor three-phase wire connection cavity and electrically connected to the motor three-phase wires. The side wall of the motor three-phase wire connection cavity is connected to a breather plug, and an oil drain groove is formed at the bottom of the motor three-phase wire connection cavity.

[0013] Furthermore, it further includes a filter and an electronic pump. The bottom of the transmission cavity is separated into an oil suction cavity by a partition rib. The filter is accommodated in the oil suction cavity, and a part of the electronic pump extends into the oil suction cavity and is connected to the filter.

[0014] Further, the motor further includes a front motor bearing and a rear motor bearing. The rotor assembly includes a rotor shaft, a rotor bracket, and a rotor core. The rotor bracket supports the rotor shaft. One end of the rotor shaft is connected to the sun gear, and the other end is connected to the rotor core. The front motor bearing and the rear motor bearing are respectively sleeved on the rotor shaft. The rotor bracket is respectively provided with a first groove and a second groove along the direction parallel to the axis of the rotor shaft. The front motor bearing is accommodated in the first groove, and the rear motor bearing is accommodated in the second groove.

[0015] Further, the controller includes a control circuit board, an IGBT module, and a capacitor. The control circuit board is fixed above the IGBT water channel, and the capacitor and the IGBT module are fixed below the IGBT water channel.

[0016] Furthermore, it further includes an oil cooler fixed on the motor housing. The water outlet of the water channel of the IGBT water channel is communicated with the water inlet of the oil cooler of the oil cooler.

[0017] Still further, the oil cooler is located below the water outlet of the water channel of the IGBT water channel.

[0018] Still further, it further includes a differential for connecting to the vehicle wheels. The differential includes a differential case. The differential case is fixedly connected to a differential ring gear. The differential ring gear meshes with the driven gear. The journal on one side of the differential case extends away from the differential case, and a journal bearing is installed at the end of the journal. The driving gear is accommodated between the journal bearing and the differential case, and a gap is left between the journal and the driving gear.

[0019] In the power generation and drive integrated device of the present invention, a motor, a planetary gear mechanism, a transmission gear set, and a controller are all integrated into the motor housing. The engine and the motor are connected through the planetary gear mechanism, and the wheels are driven through the transmission gear set. On the one hand, the motor can be driven by the engine to act as a generator, and on the other hand, the motor can also act as a drive motor to drive the wheels through the transmission gears. Therefore, the overall layout of the power generation and drive integrated device of the present invention is compact, and the motor can both generate electricity and drive, thereby reducing the overall volume of the hybrid system. Brief Description of the Drawings

[0020] Figure 1 It is an exploded view of a power generation and drive integrated device according to an embodiment of the present invention;

[0021] Figure 2 It is a side view of a power generation and drive integrated device according to another embodiment of the present invention;

[0022] Figure 3 It is a partial sectional view of the motor housing of a power generation and drive integrated device according to another embodiment of the present invention;

[0023] Figure 4 It is a partial sectional view in one direction of the controller of a power generation and drive integrated device according to another embodiment of the present invention;

[0024] Figure 5 It is a partial sectional view in another direction of the controller of a power generation and drive integrated device according to another embodiment of the present invention;

[0025] Figure 6 It is a rear view of a power generation and drive integrated device according to another embodiment of the present invention;

[0026] Figure 7 It is a schematic diagram of the planetary gear mechanism without a sun gear of a power generation and drive integrated device according to another embodiment of the present invention;

[0027] Figure 8 It is a schematic diagram of the planetary gear mechanism with a sun gear installed of a power generation and drive integrated device according to another embodiment of the present invention

[0028] Figure 9 It is a schematic diagram of another angle of the planetary gear mechanism of a power generation and drive integrated device according to another embodiment of the present invention;

[0029] Figure 10 It is an overall sectional view of a power generation and drive integrated device according to another embodiment of the present invention.

[0030] Marking Explanation

[0031] 1. Motor housing; 101. Motor cavity; 1011. Motor housing cover plate; 1012. Bearing pressure plate; 102. Transmission cavity; 1021. Flywheel housing; 1022. Wiring cavity sealing plate; 103. Motor three-phase wire wiring cavity; 1031. Oil drain groove; 104. Oil suction cavity; 2. Motor; 21. Stator assembly; 22. Rotor assembly; 221. Rotor shaft; 222. Rotor bracket; 2221. First groove; 2222. Second groove; 223. Rotor core; 23. Front motor bearing; 24. Rear motor bearing; 25. Resolver assembly; 251. Resolver stator; 252. Resolver rotor; 3. Planetary gear mechanism; 31. Sun gear; 311. Sun gear thrust bearing; 32. Planet carrier; 321. Planet carrier bearing; 33. Ring gear; 331. Right ring gear bearing; 332. Left ring gear bearing; 34. Planet gear; 4. Transmission gear set; 41. Driving gear; 42. Driven gear; 43. Disengagement mechanism; 5. Controller; 500. Controller housing; 501. Controller upper cover; 502. Controller cavity; 51. Control circuit board; 52. IGBT module; 53. Capacitor; 54. IGBT water channel; 541. Water channel outlet; 542. Water channel inlet; 55. IGBT three-phase wire connection seat; 56. Capacitor copper bar; 57. Distribution board; 6. Differential; 61. Differential housing; 611. Differential ring gear; 612. Differential planet gear; 613. Side gear; 62. Journal; 63. Journal bearing; 7. Braking mechanism; 8. Locking mechanism; 9. Breather plug; 10. Filter; 11. Electric pump; 12. Oil cooler; 121. Oil cooler inlet; 122. Oil cooler outlet; 13. Motor three-phase wire. Detailed implementation manners

[0032] The following further describes the detailed implementation manners of the present invention with reference to the drawings. The same components are denoted by the same reference numerals. It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.

[0033] As Figure 1 shown in an embodiment of the present invention, a power generation and drive integrated device includes: a motor housing 1, a motor 2, a planetary gear mechanism 3, a transmission gear set 4 and a controller 5. The motor 2, the planetary gear mechanism 3 and the transmission gear set 4 are accommodated in the motor housing 1;

[0034] The planetary gear mechanism 3 includes a sun gear 31, a planet carrier 32, a ring gear 33, and a plurality of planet gears 34. The plurality of planet gears 34 are mounted on the planet carrier 32, and the planet gears 34 are respectively meshed with the inner ring of the sun gear 31 and the ring gear 33. The planet carrier 32 is connected to the engine. The motor 2 includes a stator assembly 21 and a rotor assembly 22 accommodated in the stator assembly 21. The rotor assembly 22 is connected to the sun gear 31;

[0035] The transmission gear set 4 includes a driving gear 41 and a driven gear 42 connected to each other. The driving gear 41 is meshed with the outer ring of the ring gear 33, and the driven gear 42 is used to be connected to the wheels of the vehicle.

[0036] Specifically, the planet carrier 32 is connected to the engine. In some embodiments, the planet carrier 32 is connected to the engine input shaft of the engine. In some embodiments, the planet carrier 32 serves as the engine input shaft and is connected to the engine for power output. The motor 2 includes a stator assembly 21 and a rotor assembly 22. The rotor assembly 22 is connected to the sun gear 31. Through the cooperation of the sun gear 31, the planet carrier 32, the ring gear 33, and the plurality of planet gears 34, power output is achieved. Among them, the sun gear 31 is meshed with the planet gears 34, thereby adjusting the speed ratio between the engine and the motor 2. The engine drives the rotor assembly 22 to rotate and generate electricity through the planet carrier 32, or the power of the engine drives the ring gear 33 through the planet carrier 32 to output driving torque to drive the vehicle.

[0037] On the other hand, the ring gear 33 is connected to the wheels of the vehicle through the transmission gear set 4;

[0038] The controller 5 is fixed above the motor housing 1.

[0039] In some embodiments, the transmission gear set 4 is connected to the wheels through a differential 6.

[0040] Specifically, the ring gear 33 is meshed with the driving gear 41 of the transmission gear set 4, and the driven gear 42 of the transmission gear set 4 is connected to the wheels. Preferably, the driven gear 42 is meshed with the differential 6, and the differential 6 is connected to the wheels. The driving gear 41 and the driven gear 42 rotate together.

[0041] The controller 5 is fixed above the motor housing 1 to further reduce the overall volume of the power generation and drive integrated device.

[0042] The integrated power generation and driving device of the present invention integrates a motor, a planetary gear mechanism, a transmission gear set, and a controller into the motor housing. The engine and the motor are connected through the planetary gear mechanism, and the wheels are driven through the transmission gear set. On the one hand, the motor can be driven by the engine to act as a generator, and on the other hand, the motor can also act as a driving motor to drive the wheels through the transmission gear. Therefore, the overall layout of the integrated power generation and driving device of the present invention is compact, and the motor can both generate power and drive, thereby reducing the overall volume of the hybrid system.

[0043] As Figures 1 to 7 Shown in the figure is a schematic structural diagram of an integrated power generation and driving device according to another embodiment of the present invention, including: a motor housing 1, a motor 2, a planetary gear mechanism 3, a transmission gear set 4, a controller 5, a differential 6, a braking mechanism 7, a locking mechanism 8, a breather plug, a filter 10, an electric pump 11, and an oil cooler 12. The motor 2, the planetary gear mechanism 3, and the transmission gear set 4 are accommodated in the motor housing 1;

[0044] The planetary gear mechanism 3 includes a sun gear 31, a planet carrier 32, a ring gear 33, and a plurality of planet gears 34. The plurality of planet gears 34 are installed on the planet carrier 32, and the planet gears 34 are respectively meshed with the inner ring of the sun gear 31 and the ring gear 33. The planet carrier 32 is connected to the engine. The motor 2 includes a stator assembly 21 and a rotor assembly 22 accommodated in the stator assembly 21. The rotor assembly 22 is connected to the sun gear 31;

[0045] The transmission gear set 4 includes a connected driving gear 41 and a driven gear 42. The driving gear 41 is meshed with the outer ring of the ring gear 33. The differential 6 is used to connect to the wheels of the vehicle. The differential 6 includes a differential housing 61. The differential housing 61 is fixedly connected to a differential ring gear 611. The differential ring gear 611 is meshed with the driven gear 42. A journal 62 on one side of the differential housing 61 extends away from the differential housing 61, and a journal bearing 63 is installed at the end of the journal 62. The driving gear 41 is accommodated between the journal bearing 63 and the differential housing 61, and a gap is left between the driving gear 41 and the journal 62;

[0046] The braking mechanism 7 locks or unlocks the ring gear 33, and the braking mechanism 7 is communicatively connected to the controller 5;

[0047] The locking mechanism 8 locks or unlocks the planet carrier 32, and the locking mechanism 8 is communicatively connected to the controller 5;

[0048] The motor housing 1 includes a motor cavity 101 for accommodating the stator assembly 21 and the rotor assembly 22, and a transmission cavity 102 for accommodating the planetary gear mechanism 3 and the transmission gear set 4. A controller housing 500 is fixedly connected above the motor housing 1, and the controller 5 is accommodated in the controller housing 500;

[0049] The top of the transmission cavity 102 is separated by a partition rib to form a motor three-phase wire connection cavity 103. The motor three-phase wire 13 electrically connected to the motor 2 is accommodated in the motor three-phase wire connection cavity 103. The motor three-phase wire connection seat of the controller 5 is inserted into the motor three-phase wire connection cavity 103 and electrically connected to the motor three-phase wire 13. The side wall of the motor three-phase wire connection cavity 103 is connected to the breather plug 9, and an oil drain groove 1031 is formed at the bottom of the motor three-phase wire connection cavity 103;

[0050] The bottom of the transmission cavity 102 is separated by a partition rib to form an oil suction cavity 104. The filter 10 is accommodated in the oil suction cavity 104, and a part of the electronic pump 11 extends into the oil suction cavity 104 and is connected to the filter 10;

[0051] The motor 2 further includes a motor front bearing 23 and a motor rear bearing 24. The rotor assembly 22 includes a rotor shaft 221, a rotor bracket 222, and a rotor core 223. The rotor bracket 222 supports the rotor shaft 221. One end of the rotor shaft 221 is connected to the sun gear 31, and the other end is connected to the rotor core 223. The motor front bearing 23 and the motor rear bearing 24 are respectively sleeved on the rotor shaft 221. The rotor bracket 222 is respectively provided with a first groove 2221 and a second groove 2222 along the direction parallel to the axis of the rotor shaft 221. The motor front bearing 23 is accommodated in the first groove 2221, and the motor rear bearing 24 is accommodated in the second groove 2222;

[0052] The controller 5 is fixed above the motor housing 1. The controller 5 includes a control circuit board 51, an IGBT module 52, and a capacitor 53. The control circuit board 51 is fixed above the IGBT water channel 54, and the capacitor 53 and the IGBT module 52 are fixed below the IGBT water channel 54;

[0053] The oil cooler 12 is fixed on the motor housing 1. The water channel outlet 541 of the IGBT water channel 54 is communicated with the oil cooler water inlet 121 of the oil cooler 12. The oil cooler 12 is located below the water channel outlet 541 of the IGBT water channel 54.

[0054] Specifically, the engine input shaft of the engine is integrated with the planet carrier 32. The planet carrier 32 is connected to the engine and serves as the power output. The motor 2 includes a stator assembly 21 and a rotor assembly 22. The rotor assembly 22 is connected to the sun gear 31. Through the cooperation of the sun gear 31, the planet carrier 32, the ring gear 33, and a plurality of planet gears 34, power output is achieved. As Figures 7 to 9 shown, wherein, the sun gear 31 meshes with the planet gears 34, thereby adjusting the speed ratio between the engine and the motor 2. By controlling the braking mechanism 7 to lock or unlock the ring gear 33, and by controlling the engine and the motor 2, multiple working modes are achieved. Both the inner and outer sides of the ring gear 33 have teeth.

[0055] Among them, when the braking mechanism 7 locks the ring gear 33, the engine drives the motor 2 to generate electricity through the planet carrier 32 and the sun gear 31. At the same time, due to the speed increasing ratio of the planet gears, both the engine and the motor 2 operate in the high-efficiency region, improving the energy-saving effect.

[0056] When the braking mechanism 7 unlocks the ring gear 33, the ring gear 33 serves as the power output. Therefore, a part of the engine power drives the sun gear 31 through the planet carrier 32, thereby driving the motor 2 to generate electricity. By controlling the speed of the motor 2, the speed ratio is adjusted to achieve stepless speed regulation. On the other hand, the engine power drives the ring gear 33 through the planet carrier 32, outputting a driving torque to drive the vehicle.

[0057] Among them, the braking mechanism 7 can be a drum braking mechanism or a friction plate braking mechanism. The braking mechanism 7 gradually locks the ring gear 33 from the moving state and can disengage with torque. As Figure 7 shown, the braking mechanism 7 is installed at position A of the ring gear 33.

[0058] On the other hand, the ring gear 33 is connected to the vehicle wheels through a transmission gear set 4, and the transmission gear set 4 is connected to the wheels through a differential 6.

[0059] Specifically, the ring gear 33 meshes with the driving gear 41 of the transmission gear set 4, and the driven gear 42 of the transmission gear set 4 meshes with the differential 6. The differential 6 is connected to the wheels. The driving gear 41 and the driven gear 42 rotate together.

[0060] Among them, the differential 6 includes a differential case 61. The differential case 61 is fixedly connected to a differential ring gear 611. The differential case 61 is bolted to the differential ring gear 611. The differential ring gear 611 meshes with the driven gear 42. The driven gear 42 meshes with the differential ring gear 611 of the differential 6 to drive the differential case 61 of the differential 6 to rotate. The rotation of the differential case 61 drives the differential planet gears 612 inside the differential case 61 to rotate, and further drives the left and right axle gears 613 meshing with the differential planet gears 612 to rotate, and drives the rotation of the left and right wheels connected to the left and right axle gears.

[0061] The journal 62 on one side of the differential case 61 extends away from the differential case 61, and a journal bearing 63 is installed at the end of the journal 62. The driving gear 41 is accommodated between the journal bearing 63 and the differential case 61, and a gap is left between the driving gear 41 and the journal 62.

[0062] By elongating the journal 62, a accommodating space for the driving gear 41 is left, thereby improving the layout compactness.

[0063] In some embodiments, the transmission gear set 4 is a reduction gear set.

[0064] In some embodiments, as Figure 10 shown, a disengaging mechanism 43 is provided between the differential 6 and the half shaft. The disengaging mechanism 43 is communicatively connected to the controller. The disengaging mechanism 43 controls the separation or engagement of the differential 6 from the wheels. By means of the disengaging mechanism 43, the churning loss of the reducer and the drag loss of the permanent magnet motor are reduced. Among them, the disengaging mechanism 43 is an existing disengaging mechanism capable of realizing the engagement or separation of the differential from the wheel end.

[0065] In some embodiments, the disengaging mechanism 43 can be implemented by using an existing clutch with a control function. For example, an electromagnetic clutch or the like.

[0066] In some embodiments, the locking mechanism 8 is a one-way clutch capable of changing the locking direction.

[0067] In some embodiments, the locking mechanism 8 for locking or unlocking the planet carrier 32 is a clutch having forward and reverse locking or unlocking functions. The locking mechanism 8 can be implemented by using an existing clutch with a control function. For example, an electromagnetic clutch or a hydraulic clutch.

[0068] The motor housing 1 includes a motor cavity 101, a transmission cavity 102, and a controller housing 500. By separating with multiple cavities, the independent operation of each component is ensured. At the same time, the controller housing 500 is located above the motor cavity 101 and the transmission cavity 102, so that mechanisms such as a reducer + an inverter + a motor + a braking mechanism + a locking mechanism are integrated on one device, realizing a hybrid power assembly with small size, low weight, and high integration.

[0069] In some embodiments, a motor housing cover 1011 and a bearing pressure plate 1012 for closing the motor cavity 101 are provided outside the motor cavity 101; a flywheel housing 1021, a wiring cavity sealing plate 1022, and an oil seal seat sealing plate for closing the transmission cavity 102 are provided outside the transmission cavity 102; a controller upper cover 501 for closing the controller housing 500 is provided above the controller housing 500.

[0070] As Figure 2As shown, a motor three-phase wire connection cavity 103 is separated from the top of the transmission cavity 102 by an isolation rib. The motor three-phase wire 13 electrically connected to the motor 2 is placed in the motor three-phase wire connection cavity 103. The motor three-phase wire connection socket of the controller 5 is inserted into the motor three-phase wire connection cavity 103 and electrically connected to the motor three-phase wire 13.

[0071] The motor three-phase wire 13 is electrically connected to the motor 2 and placed in the motor three-phase wire connection cavity 103. The motor three-phase wire connection cavity 103 is used as a separate wiring cavity, which can not only prevent bolts from falling during assembly, but also enable the removal of the inverter housing without opening the gearbox during after-sales maintenance of the inverter. At the same time, the side wall of the motor three-phase wire connection cavity 103 is connected to the breather plug 9, which can serve as a breather plug labyrinth structure to avoid the situation of splashing oil in the breather plug 9 and affecting the breathability. A drain oil groove 1031 is designed at the bottom of the motor three-phase wire connection cavity 103 to prevent oil from accumulating, and the size (width) of the drain oil groove 1031 is smaller than the bolt size.

[0072] At the same time, since the motor three-phase wire connection cavity 103 is located on one side of the transmission cavity 102, there is no need to route wires from the motor cavity 101, and the wiring box on the motor housing cover 1011 can be cancelled, further reducing the Y-direction size.

[0073] An oil suction cavity 104 is separated from the bottom of the transmission cavity 102 by an isolation rib. The filter 10 is placed in the oil suction cavity 104, and a part of the electronic pump 11 extends into the oil suction cavity 104 and is connected to the filter 10.

[0074] In some embodiments, the electronic pump 11 is an electronic oil pump.

[0075] As Figure 3 shown, the motor 2 further includes a motor front bearing 23 and a motor rear bearing 24. The rotor assembly 22 includes a rotor shaft 221, a rotor bracket 222, and a rotor iron core 223. The rotor bracket 222 supports the rotor shaft 221. One end of the rotor shaft 221 is connected to the sun gear 31, and the other end is connected to the rotor iron core 223. The motor front bearing 23 and the motor rear bearing 24 are respectively sleeved on the rotor shaft 221. The rotor bracket 222 is respectively provided with a first groove 2221 and a second groove 2222 along the direction parallel to the axis of the rotor shaft 221. The motor front bearing 23 is placed in the first groove 2221, and the motor rear bearing 24 is placed in the second groove 2222.

[0076] In some embodiments, it further includes a planet carrier bearing 321, a ring gear right bearing 331, a ring gear left bearing 332, and a sun gear thrust bearing 311.

[0077] In some embodiments, the motor 2 further includes a resolver assembly 25, and the resolver assembly 25 includes a resolver stator 251 and a resolver rotor 252.

[0078] The overall structure of this device is highly integrated in the Y direction in Figure 3 such that the front bearing 23 and the rear bearing 24 of the motor are sunk into the first groove 2221 and the second groove 2222 of the rotor bracket 222 in the Y direction, maximizing the utilization of space.

[0079] As Figure 4 and Figure 5 shown, the controller 5 includes a control circuit board 51, an IGBT module 52, and a capacitor 53. Inside the controller housing 500 is a controller cavity 502, and the control circuit board 51, the IGBT module 52, and the capacitor 53 are accommodated in the controller cavity 502. The controller housing 500 also includes an IGBT water channel 54. The control circuit board 51 is fixed above the IGBT water channel 54, and the capacitor 53 and the IGBT module 52 are fixed below the IGBT water channel 54.

[0080] In some embodiments, the controller 5 is an inverter.

[0081] In some embodiments, the control circuit board 51 is a Printed Circuit Board Assembly (PCBA) circuit board.

[0082] Among them, IGBT is an Insulated Gate Bipolar Transistor.

[0083] In some embodiments, the controller 5 further includes an IGBT three-phase line terminal block 55, a capacitor copper bar 56, and a distribution board 57. Among them, the first copper bar of the IGTB module is connected to the IGBT three-phase line terminal block 55, the IGBT three-phase line terminal block 55 is connected to the motor three-phase line terminal block, and the motor three-phase line terminal block is connected to the motor three-phase line 13. The capacitor copper bar 56 is connected to the second copper bar of the IGBT module, and the capacitor copper bar 56 passes through a magnetic ring and is connected to the battery power supply. The distribution board 57 is connected to the capacitor copper bar 56 through a terminal post. The distribution board 57 is preferably an AC and PTC distribution board.

[0084] The IGBT water channel 54 partially overlaps with the capacitor 53, enabling heat exchange between the cooling water channel and the capacitor 53, increasing the heat dissipation of the capacitor 53, and improving the compatible voltage range. The IGBT module 52 is in an inverted hanging form, and the IGBT water channel 54 is integrated with the controller housing 500, with a more compact layout. The inlet and outlet of the IGBT water channel 54 are designed to be relatively in the X direction as Figure 5 shown, with a simple structure and a small water resistance.

[0085] As Figure 6As shown in the figure, the oil cooler 12 is fixed on the motor housing 1. The oil cooler 12 includes an oil cooler water inlet 121 and an oil cooler water outlet 122. The IGBT water channel 54 includes a water channel inlet 542 and a water channel outlet 541. The water channel outlet 541 of the IGBT water channel 54 is communicated with the oil cooler water inlet 121 of the oil cooler 12. The oil cooler 12 is located below the water channel outlet 541 of the IGBT water channel 54. Therefore, the water channel outlet 541 of the IGBT water channel 54 and the oil cooler water inlet 121 are arranged at the closest distance, reducing the water resistance, reducing the length of the water pipe, and lowering the cost.

[0086] In this embodiment, mechanisms such as a reducer + an inverter + a motor + a braking mechanism + a locking mechanism are integrated on one device to achieve a hybrid power assembly with small size, low weight, and high integration. At the same time, in this embodiment, a motor three-phase wire wiring cavity is added and used as a separate wiring cavity. It can not only prevent bolts from falling during assembly, but also when repairing the inverter after-sales, it is not necessary to open the gearbox to remove the inverter housing. At the same time, it can be used as a breather plug maze structure to avoid the situation of splashing oil in the breather plug, which affects the air permeability, and an oil drain groove is designed to prevent oil accumulation. In addition, the motor structure in this embodiment is highly integrated in the Y direction, maximizing the use of space. Finally, the IGBT water channel in this embodiment is reasonably designed. On the one hand, it dissipates heat for multiple modules with a compact layout. On the other hand, it is arranged at the closest distance to the oil cooler, reducing the water resistance.

[0087] The above-described embodiments merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A power generation and driving integrated device, characterized in that: include: A motor housing (1), a motor (2), a planetary gear mechanism (3), a transmission gear set (4), and a controller (5), wherein the motor (2), the planetary gear mechanism (3), and the transmission gear set (4) are accommodated in the motor housing (1); The planetary gear mechanism (3) comprises a sun gear (31), a planet carrier (32), a ring gear (33) and a plurality of planetary gears (34); the plurality of planetary gears (34) are mounted on the planet carrier (32), and the planetary gears (34) are respectively meshed with the inner rings of the sun gear (31) and the ring gear (33); the planet carrier (32) is connected to an engine; the motor (2) comprises a stator assembly (21) and a rotor assembly (22) accommodated in the stator assembly (21); the rotor assembly (22) is connected to the sun gear (31); The transmission gear set (4) comprises a connected driving gear (41) and a driven gear (42), wherein the driving gear (41) is meshed with the outer ring of the gear ring (33), and the driven gear (42) is used to be connected to the wheels of the vehicle; The controller (5) is fixed above the motor housing (1).

2. The integrated power generation and driving device according to claim 1, characterized in that: It also includes a braking mechanism (7) for locking or unlocking the gear ring (33), and the braking mechanism (7) is communicatively connected to the controller (5).

3. The integrated power generation and driving device according to claim 1, characterized in that: It also includes a locking mechanism (8) for locking or unlocking the planet carrier (32), and the locking mechanism (8) is communicatively connected to the controller (5).

4. The integrated power generation and driving device according to claim 1, characterized in that: The motor housing (1) comprises a motor cavity (101) for accommodating the stator assembly (21) and the rotor assembly (22), and a transmission cavity (102) for accommodating the planetary gear mechanism (3) and the transmission gear set (4); a controller housing (500) is fixedly connected to the top of the motor housing (1), and the controller (5) is accommodated in the controller housing (500).

5. The integrated power generation and driving device according to claim 4, characterized in that: The top of the transmission cavity (102) is separated into a motor three-phase wire connection cavity (103) by an isolation rib. The motor three-phase wire connection cavity (103) contains a motor three-phase wire (13) electrically connected to the motor (2). The motor three-phase wire connection socket of the controller (5) is inserted into the motor three-phase wire connection cavity (103) and is electrically connected to the motor three-phase wire (13). The side wall of the motor three-phase wire connection cavity (103) is connected to a vent plug (9), and an oil drain groove (1031) is provided at the bottom of the motor three-phase wire connection cavity (103).

6. The integrated power generation and driving device according to claim 4, characterized in that: It also comprises a filter (10) and an electronic pump (11); the bottom of the transmission cavity (102) is separated into an oil suction cavity (104) by an isolation rib; the filter (10) is accommodated in the oil suction cavity (104); and a portion of the electronic pump (11) extends into the oil suction cavity (104) and is connected to the filter (10).

7. The integrated power generation and driving device according to claim 1, characterized in that: The motor (2) further comprises a motor front bearing (23) and a motor rear bearing (24); the rotor assembly (22) comprises a rotor shaft (221), a rotor bracket (222) and a rotor core (223); the rotor bracket (222) supports the rotor shaft (221); one end of the rotor shaft (221) is connected to the sun gear (31), and the other end is connected to the rotor core (223); the motor front bearing (23) and the motor rear bearing (24) are respectively sleeved on the rotor shaft (221); the rotor bracket (222) is respectively provided with a first groove (2221) and a second groove (2222) in a direction parallel to the axis of the rotor shaft (221); the motor front bearing (23) is accommodated in the first groove (2221), and the motor rear bearing (24) is accommodated in the second groove (2222).

8. The integrated power generation and driving device according to claim 1, characterized in that: The controller (5) comprises a control circuit board (51), an IGBT module (52), and a capacitor (53); the control circuit board (51) is fixed above an IGBT water channel (54), and the capacitor (53) and the IGBT module (52) are fixed below the IGBT water channel (54).

9. The integrated power generation and driving device according to claim 8, characterized in that: It also includes an oil cooler (12) fixed on the motor housing (1), and the water channel outlet (541) of the IGBT water channel (54) is connected to the oil cooler water inlet (121) of the oil cooler (12).

10. The integrated power generation and driving device according to claim 9, characterized in that: The oil cooler (12) is located below the water channel outlet (541) of the IGBT water channel (54).

11. The integrated power generation and driving device according to any one of claims 1 to 10, characterized in that: The invention also comprises a differential (6) for connecting to the wheels of the vehicle, the differential (6) comprising a differential case (61), the differential case (61) being fixedly connected to a differential ring gear (611), the differential ring gear (611) being meshed with the driven gear (42), a journal (62) on one side of the differential case (61) extending away from the differential case (61), and a journal bearing (63) being installed at the end of the journal (62), the driving gear (41) being accommodated between the journal bearing (63) and the differential case (61), and leaving a gap between the driving gear (41) and the journal (62).

Images