Power device, power system and vehicle

Abstract

The invention relates to a power device, a power system and a vehicle, the power device comprises a first motor and a planetary transmission mechanism, and the planetary transmission mechanism is integrally mounted on the first motor; the planetary transmission mechanism is integrally installed on the first motor, so that the integration degree of the power device can be improved, the overall size of the power device is reduced, and space arrangement of the whole vehicle is facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of vehicles, and particularly to a power device, a power system and a vehicle. Background Art

[0002] In the related art, the power system is longitudinally arranged on the body of a new energy vehicle to provide kinetic energy output for the vehicle. However, this arrangement will result in an overlong overall length and an increased weight of the power system, which is not conducive to the overall vehicle space layout. Summary of the Invention

[0003] Embodiments of the present application provide a power device, a power system and a vehicle, which improve the integration degree of the power system, thereby being conducive to the overall vehicle space layout to at least partially solve the above technical problems.

[0004] To achieve the above object, according to the first aspect of the present application, a power device is provided, and the power device includes:

[0005] A first motor; and

[0006] A planetary transmission mechanism, integrally installed on the first motor.

[0007] In some embodiments, the first motor includes:

[0008] A housing, and the planetary transmission mechanism is arranged inside the housing.

[0009] In some embodiments, the first motor further includes:

[0010] A rotor, rotatably arranged inside the housing and in transmission connection with the planetary transmission mechanism.

[0011] In some embodiments, the planetary transmission mechanism includes:

[0012] A ring gear;

[0013] A planet carrier, located inside the ring gear, and at least one planet gear is arranged on the planet carrier, and the planet gear meshes with the ring gear; and

[0014] A sun gear, meshing with the planet gear;

[0015] Wherein, two of the ring gear, the planet carrier and the sun gear can move relative to the other one of the ring gear, the planet carrier and the sun gear; the rotor is fixedly connected to one of the ring gear, the planet carrier and the sun gear.

[0016] In some embodiments, the other one of the ring gear, the planet carrier and the sun gear is fixed to the housing.

[0017] In some embodiments, the rotor is hollow;

[0018] Among them, at least one of the ring gear, the planet carrier and the sun gear is disposed within the rotor.

[0019] In some embodiments, the first motor further includes:

[0020] A stator fixedly disposed within the housing;

[0021] Wherein, the rotor is disposed within the enclosed space of the stator and is rotatable relative to the stator.

[0022] In some embodiments, the power device further includes:

[0023] A coupling structure, drivingly connected to the planetary transmission mechanism, for transmitting power between the planetary transmission mechanism and the first actuator or disconnecting the power transmission between the planetary transmission mechanism and the first actuator.

[0024] In some embodiments, the coupling structure is integrally mounted on the first motor.

[0025] In some embodiments, the first motor includes:

[0026] A housing, the coupling structure is disposed within the housing.

[0027] In some embodiments, the first motor further includes:

[0028] A rotor rotatably disposed within the housing and drivingly connected to the coupling structure.

[0029] In some embodiments, the coupling structure includes:

[0030] A main body portion; and

[0031] A movable portion capable of moving relative to the main body portion;

[0032] Wherein, one of the main body portion and the movable portion is fixedly connected to the rotor.

[0033] In some embodiments, the rotor is hollow;

[0034] Wherein, at least one of the main body portion and the movable portion is disposed within the rotor.

[0035] In some embodiments, the rotor is hollow, and at least part of the coupling structure and the planetary transmission mechanism are located within the rotor;

[0036] Wherein, the coupling structure and the planetary transmission mechanism are arranged along the axial direction of the rotor.

[0037] In some embodiments, the first motor is a flat motor.

[0038] According to the second aspect of the present application, there is also provided a power system, the power system includes:

[0039] Power unit; and

[0040] A first output device, which is in transmission connection with both the first motor and the planetary transmission mechanism, and is used to drive the first motor to supply energy to the power source and transmit kinetic energy to the first execution component through the planetary transmission mechanism.

[0041] In some embodiments, the power system further includes:

[0042] A coupling structure, which is in transmission connection with the planetary transmission mechanism, and is used to transmit power between the planetary transmission mechanism and the first execution component or disconnect the power transmission between the planetary transmission mechanism and the first execution component; and

[0043] A first transmission structure, the input end of the first transmission structure is in transmission connection with the output end of the coupling structure, and the output end of the first transmission structure is used to drive the first execution component to work.

[0044] In some embodiments, the first transmission structure includes:

[0045] A first gear, which is fixedly connected to the output end of the coupling structure; and

[0046] A second gear, which meshes with the first gear and forms the output end of the first transmission structure.

[0047] In some embodiments, the power system further includes:

[0048] A second output device, the output end of the second output device is in transmission connection with at least one of the first gear and the second gear.

[0049] In some embodiments, the power system further includes:

[0050] A third gear, which is arranged at the output end of the second output device;

[0051] Wherein, the third gear meshes with the second gear or the third gear is arranged between the first gear and the second gear and meshes with both the first gear and the second gear.

[0052] In some embodiments, the power system further includes:

[0053] A differential, the input end of the differential is in transmission connection with the output end of the first transmission structure, and the output end of the differential is used to drive the first execution component to work.

[0054] In some embodiments, the power system further includes:

[0055] A second transmission structure, the input end of the second transmission structure is in transmission connection with the output end of the planetary transmission mechanism, and the output end of the second transmission structure is in transmission connection with the input end of the coupling structure.

[0056] In some embodiments, the second transmission structure includes:

[0057] A fourth gear, forming an input end of the second transmission structure; and

[0058] A fifth gear, meshing with the fourth gear and forming an output end of the second transmission structure.

[0059] In some embodiments, the power system further includes:

[0060] A second output device for transmitting kinetic energy to the first execution component.

[0061] In some embodiments, the power system has a first working mode;

[0062] When the power system is in the first working mode, the first output device drives the first motor to supply energy to the power source, and the second output device transmits kinetic energy to the first execution component.

[0063] In some embodiments, the power system has a second working mode;

[0064] When the power system is in the second working mode, the first output device transmits kinetic energy to the first execution component through the planetary transmission mechanism, and the second output device transmits kinetic energy to the first execution component.

[0065] In some embodiments, the power system has a third working mode;

[0066] When the power system is in the third working mode, the first output device drives the first motor to supply energy to the power source, and transmits kinetic energy to the first execution component through the planetary transmission mechanism, and the second output device does not work.

[0067] In some embodiments, the power system further includes:

[0068] A third output device for drivingly connecting with the second execution component to drive the second execution component to work.

[0069] According to a third aspect of the present application, a vehicle is further provided, including a power system.

[0070] The power device in the embodiments of the present application includes a first motor and a planetary transmission mechanism, and the planetary transmission mechanism is integrally installed on the first motor; wherein, by integrally installing the planetary transmission mechanism on the first motor, the integration degree of the power device can be improved, so that the overall size of the power device is reduced, which is beneficial to the overall vehicle space layout.

[0071] Other features and advantages of the present application will be described in detail in the subsequent specific implementation part. Description of the Drawings

[0072] To more clearly illustrate the technical solutions in the embodiments of the present application, the accompanying drawings required for the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other accompanying drawings based on these drawings without creative efforts.

[0073] To more fully understand the present application and its beneficial effects, the following description will be made in conjunction with the accompanying drawings, where the same reference numerals in the following description represent the same parts.

[0074] Figure 1 is a partial structural block diagram of the power system provided in the exemplary embodiment of the present application;

[0075] Figure 2 is a partial internal structural schematic diagram of the power supply structure provided in the exemplary embodiment of the present application;

[0076] Figure 3 is a three-dimensional structural schematic diagram of the cooperation between the planetary gear reduction structure and the rotor provided in the exemplary embodiment of the present application;

[0077] Figure 4 is a structural schematic diagram of the cooperation between the planetary gear reduction structure and the rotor provided in the exemplary embodiment of the present application;

[0078] Figure 5 is an assembly schematic diagram among the first output device, the planetary gear reduction structure and the power supply structure provided in the exemplary embodiment of the present application;

[0079] Figure 6 is another assembly schematic diagram among the first output device, the planetary gear reduction structure and the power supply structure provided in the exemplary embodiment of the present application;

[0080] Figure 7 is yet another assembly schematic diagram among the first output device, the planetary gear reduction structure and the power supply structure provided in the exemplary embodiment of the present application;

[0081] Figure 8 is a partial structural block diagram of the power system provided in the exemplary embodiment of the present application;

[0082] Figure 9 is a partial structural block diagram of the power system provided in the exemplary embodiment of the present application;

[0083] Figure 10 is a partial assembly schematic diagram of the power system provided in the exemplary embodiment of the present application;

[0084] Figure 11It is a partial assembly schematic diagram of another perspective of the power system provided in the exemplary embodiment of the present application;

[0085] Figure 12 It is a structural block diagram of the power system provided in the exemplary embodiment of the present application.

[0086] Explanation of reference numerals:

[0087] 1. First motor; 11. Stator; 12. Rotor; 13. Housing; 2. Planetary transmission mechanism; 201. Ring gear; 202. Planet carrier; 203. Sun gear; 3. First output device; 4. First actuator; 5. Planet gear; 6. Coupling structure; 61. Main body part; 62. Movable part; 7. First transmission structure; 71. First gear; 72. Second gear; 8. Second output device; 9. Third gear; 10. Differential; 14. Second transmission structure; 141. Fourth gear; 142. Fifth gear; 15. Third output device; 16. Second actuator; 17. Sixth gear; 18. Seventh gear; 19. Power source; 21. Third transmission structure. Detailed implementation manners

[0088] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present application.

[0089] The present application proposes a power device, Figures 1 to 12 These are some embodiments of the present application.

[0090] Please refer to Figures 1 to 2 , in some embodiments of the present application, the power device includes a first motor 1 and a planetary transmission mechanism 2, and the planetary transmission mechanism 2 is integrally installed on the first motor 1.

[0091] In the technical solution of the present application, by integrally installing the planetary transmission mechanism 2 on the first motor 1, the integration degree of the power device can be improved, so that the overall size of the power device is reduced, which is beneficial to the layout of the vehicle space.

[0092] Among them, the first motor 1 in the above embodiment can be a generator or a drive motor, and the following will respectively explain with the first motor 1 being a generator or a drive motor:

[0093] When the first motor 1 is a drive motor and the planetary transmission mechanism 2 serves as a reduction mechanism for the first motor 1, integrating the planetary transmission mechanism 2 on the first motor 1 can eliminate at least some of the connecting components between the output motor and the planetary transmission device in the related art, thereby improving the integration degree of the power device, reducing the overall size of the power device, and being beneficial to the overall vehicle space layout.

[0094] When the first motor 1 is a generator, and the planetary transmission mechanism 2 serves as a transmission component connecting the first motor 1 and the first output device 3, integrating the planetary transmission mechanism 2 on the first motor 1 can eliminate at least some of the connecting components between the planetary transmission device and the generator in the related art, thereby improving the integration degree of the power device, reducing the overall size of the power device, and being beneficial to the overall vehicle space layout.

[0095] In this embodiment, the first output device 3 is an engine.

[0096] It should be added that the planetary transmission device in the related art is the same as the planetary transmission mechanism 2 in the above embodiment and also plays a role in speed reduction.

[0097] In some embodiments of the present application, the first motor 1 is a generator, and the generator is used to supply energy to the power source 19 of the power system; wherein, the power source 19 is a battery, that is, the first motor 1 can charge the battery pack in the power system when working.

[0098] Wherein, the planetary transmission mechanism 2 is used to adjust the transmission ratio of the first output device 3 output to the first execution component 4 and can transmit the kinetic energy of the first output device 3 to the first motor 1; that is, the first motor 1 is in transmission connection with the first output device 3.

[0099] The following embodiments are described with the first motor 1 as a generator; of course, when the first motor 1 is a drive motor, it is also suitable for the power device in the embodiments of the present application.

[0100] In the related art, in a longitudinally arranged power system with an engine, a generator and a planetary transmission structure, the engine, the generator and the planetary transmission structure are separately arranged and connected to each other through transmission components, so that the overall length of the power system is relatively long and it is not conducive to the overall vehicle space layout. However, in the above embodiments of the present application, by integrating the planetary transmission mechanism 2 on the first motor 1, the integration degree of the power device can be improved, the overall size of the power device can be reduced, and it is beneficial to the overall vehicle space layout.

[0101] Among them, in the planetary transmission mechanism 2, the kinetic energy output by the first output device 3 is transmitted to the first execution component 4; the types of the first output device 3 and the first execution component 4 are not limited. The first output device 3 can be an engine or a drive motor, and the first execution component 4 can be a wheel, a fan, a water pump, etc.

[0102] In some embodiments of the present application, the first output device 3 is an engine, and the first execution component 4 is a wheel. Then the planetary transmission mechanism 2 can transmit the kinetic energy output by the engine to the wheel so that the wheel can rotate.

[0103] In the above embodiment, while playing the role of transmitting kinetic energy, the planetary transmission mechanism 2 can also reduce the high-speed rotation speed of the input shaft to the low-speed rotation speed required by the output shaft, that is, adjust the transmission ratio of the first output device 3 output to the first execution component 4, and at the same time increase the torque to meet the low-speed and high-torque requirements of the wheel.

[0104] In addition, integrating and installing the planetary transmission mechanism 2 in the first motor 1 means that the overall structure of the planetary transmission mechanism 2 can be integrally installed outside the first motor 1; it can also be that the overall structure of the planetary transmission mechanism 2 is integrally installed inside the first motor 1.

[0105] In some embodiments of the present application, the first motor 1 includes a housing 13, and the planetary transmission mechanism 2 is arranged inside the housing 13; in this embodiment, by integrally installing the planetary transmission mechanism 2 in the housing 13 of the first motor 1, the integration degree of the first motor 1 and the planetary transmission mechanism 2 is further improved.

[0106] In addition, the housing 13 can provide protection for the planetary transmission mechanism 2 to prevent the planetary transmission mechanism 2 from being exposed.

[0107] In some embodiments of the present application, the first motor 1 further includes a rotor 12. The rotor 12 is rotatably arranged inside the housing 13 and is in transmission connection with the planetary transmission mechanism 2; in this embodiment, the rotation of the rotor 12 can supply power to the first motor 1. By setting the rotor 12 in transmission connection with the planetary transmission mechanism 2, the first output device 3 can drive the rotor 12 to rotate through the planetary transmission mechanism 2 so that the first motor 1 supplies power to the power source 19.

[0108] Please refer to Figures 3 to 4, in some embodiments of the present application, the planetary transmission mechanism 2 includes a ring gear 201, a planet carrier 202, and a sun gear 203. The planet carrier 202 is located inside the ring gear 201. At least one planet gear 5 is provided on the planet carrier 202. The planet gear 5 meshes with the ring gear 201, and the sun gear 203 meshes with the planet gear 5. Among them, two of the ring gear 201, the planet carrier 202, and the sun gear 203 can move relative to the other one of the ring gear 201, the planet carrier 202, and the sun gear 203. The rotor 12 is fixedly connected to one of the ring gear 201, the planet carrier 202, and the sun gear 203.

[0109] In the above embodiments, when one of the ring gear 201, the planet carrier 202, and the sun gear 203 is fixed, the other two are respectively used as the input end and the output end so that kinetic energy is transmitted in the planetary transmission mechanism 2. Since the rotor 12 is in transmission connection with the planetary transmission mechanism 2, the rotor 12 is in transmission connection with the output end of the planetary transmission mechanism 2 to achieve the integration of the first motor 1 and the planetary transmission mechanism 2.

[0110] It should be added that one of the ring gear 201, the planet carrier 202, and the sun gear 203 is fixed to the rotor 12, that is, one of the ring gear 201, the planet carrier 202, and the sun gear 203 can be located on one side of the rotor 12 and fixedly connected to the rotor 12; or one of the ring gear 201, the planet carrier 202, and the sun gear 203 is arranged inside the rotor 12 and fixedly connected to the rotor. There is no limitation here.

[0111] Since one of the ring gear 201, the planet carrier 202, and the sun gear 203 needs to be fixed to achieve the kinetic energy transmission function of the planetary transmission mechanism 2, and the planetary transmission mechanism 2 is arranged inside the housing 13, one of the ring gear 201, the planet carrier 202, and the sun gear 203 can be fixed to any fixed structure inside the housing 13 or the housing 13. There is no limitation here.

[0112] In some embodiments of the present application, another one of the ring gear 201, the planet carrier 202, and the sun gear 203 is fixed to the housing 13. With such a setting, the housing 13 for installing and protecting the rotor 12 can be reused, and there is no need to separately provide components for fixing one of the ring gear 201, the planet carrier 202, and the sun gear 203 inside the first motor 1, thereby improving the integration of the first motor 1.

[0113] Please refer to again Figures 1 to 2, in some embodiments of the present application, the rotor 12 is provided in a hollow manner, and at least one of the ring gear 201, the planet carrier 202, and the sun gear 203 is disposed inside the rotor 12; with such a setting, when the planetary transmission mechanism 2 is integrated into the first motor 1, it can be ensured that the length of the first motor 1 in its axial direction will not be too long, thereby further reducing the size of the power system in the axial direction of the first motor 1 to improve the integration degree of the power system.

[0114] Wherein, the length of the first motor 1 in its axial direction refers to the length of the first motor 1 in the axial direction of the rotor 12.

[0115] In some embodiments of the present application, the ring gear 201, the planet carrier 202, and the sun gear 203 are all located inside the rotor 12 to further ensure that the length of the first motor 1 in its axial direction will not be too long.

[0116] Wherein, since the dimensions of the rotor 12, the ring gear 201, the planet carrier 202, and the sun gear 203 are different in the axial direction of the first motor 1; the ring gear 201, the planet carrier 202, and the sun gear 203 can be completely located inside the rotor 12 or can partially protrude from the rotor 12; no limitation is made here.

[0117] Of course, in order to enable the ring gear 201, the planet carrier 202, and the sun gear 203 to be fixed to the housing 13, an installation portion is provided on the housing 13, and the installation portion extends in the axial direction of the first motor 1 for installing the ring gear 201 or the planet carrier 202 or the sun gear 203.

[0118] In some embodiments of the present application, the first motor 1 further includes a stator 11, and the stator 11 is fixedly disposed inside the housing 13; wherein, the rotor 12 is disposed in the enclosed space of the stator 11 and can rotate relative to the stator; wherein, the planetary transmission mechanism 2 is integrally installed on the rotor 12 to drive the rotor 12 to rotate; in this embodiment, the first output device 3 can drive the rotor 12 to rotate through the planetary transmission mechanism 2. When the first motor 1 operates, the stator 11 can generate a magnetic field. When the rotor 12 rotates in the magnetic field, it will cut the magnetic force lines and generate an induced electromotive force to generate electricity.

[0119] It should be noted that when the first motor 1 is powered, the stator 11 and the rotor 12 can perform the above process and consume the kinetic energy generated by the first output device 3 at the same time.

[0120] When the first motor 1 is not operating, the stator 11 will not generate a magnetic field. Therefore, the stator 11 will not provide resistance to the rotor 12 when the rotor 12 rotates, that is, the rotation of the rotor 12 relative to the stator 11 will not consume too much kinetic energy generated by the first output device 3.

[0121] Such as Figure 5As shown, in some embodiments of the present application, the sun gear 203 is fixed, the output shaft of the first output device 3 is fixedly connected to the planet carrier 202, and the ring gear 201 is fixedly connected to the rotor 12. When the first output device 3 drives the planet carrier 202 to rotate, it can drive the ring gear 201 to rotate through the planet gears 5, and then drive the rotor 12 to rotate relative to the stator 11.

[0122] As Figure 6 shown, in some embodiments of the present application, the ring gear 201 is fixed, the output shaft of the first output device is fixedly connected to the planet carrier 202, and the sun gear 203 is fixedly connected to the rotor 12. When the first output device 3 drives the planet carrier 202 to rotate, it can drive the sun gear 203 to rotate through the planet gears 5, and then drive the rotor 12 to rotate relative to the stator 11.

[0123] As Figure 7 shown, in some embodiments of the present application, the planet carrier 202 is fixed, the output shaft of the first output device is fixed to the ring gear 201, and the sun gear 203 is fixedly connected to the rotor 12. When the first output device 3 drives the ring gear 201 to rotate, it can drive the sun gear 203 to rotate through the planet gears 5, and then drive the rotor 12 to rotate relative to the stator 11.

[0124] In the above embodiments, the number of the planet gears 5 is not limited and can be one or more.

[0125] Specifically, in some embodiments of the present application, the number of the planet gears 5 is three.

[0126] Among them, in the embodiment where the first output device 3 is an engine and the first motor 1 is a generator, as Figures 5 to 7 shown, the assembly methods of the sun gear 203, the planet carrier 202 and the ring gear 201 in the three embodiments can be adapted to the assembly methods of different engines and different generators.

[0127] As Figure 1 shown, the planetary transmission mechanism 2 is integrally installed in the rotor 12, the input shaft of the first output device 3 extends into the housing 13 and is fixedly connected to the planet carrier 202, and the ring gear 201 is fixedly connected to the rotor 12 and is connected with an output shaft to transmit kinetic energy to the first execution component 4 through this output shaft.

[0128] Please refer to Figure 1 、 Figure 8 and Figure 9, in some embodiments of the present application, the power system further includes a coupling structure 6, which is used to transmit power between the planetary transmission mechanism 2 and the first actuator 4 or disconnect the power transmission between the planetary transmission mechanism 2 and the first actuator 4; that is, in this embodiment, the coupling structure 6 can disconnect or connect the kinetic energy transmission between the planetary transmission mechanism 2 and the first actuator 4 according to the user's needs.

[0129] Wherein, the input end of the coupling structure 6 is drivingly connected to the output end of the planetary transmission mechanism 2, and the output end of the coupling structure 6 is drivingly connected to the first actuator 4.

[0130] It can be understood that when the first output device 3 is in the working state, if it is necessary to drive the first actuator 4 to work, the coupling structure 6 is controlled so that the coupling structure 6 can transmit the kinetic energy of the planetary transmission mechanism 2 to the first actuator 4; at this time, the first motor 1 can be controlled to be in the working or non-working state to supply energy to the power source 19 or not supply energy to the power source 19.

[0131] Similarly, when the first output device 3 is in the working state, if it is not necessary to drive the first actuator 4 to work, the coupling structure 6 is controlled so that the coupling structure 6 cannot transmit the kinetic energy of the planetary transmission mechanism 2 to the first actuator 4; at this time, the first motor 1 can be controlled to be in the working or non-working state to supply energy to the power source 19 or not supply energy to the power source 19.

[0132] Please refer to Figures 8 to 9 , in some embodiments of the present application, the coupling structure 6 is integrally installed on the first motor 1; wherein, on the basis that the planetary transmission mechanism 2 is integrally installed on the first motor 1, the coupling structure 6 is further integrally installed on the first motor 1. Since kinetic energy needs to be transmitted between the planetary transmission mechanism 2 and the coupling structure 6, such a setting can cancel the shafts, gears or other components for transmitting kinetic energy between the planetary transmission mechanism 2 and the coupling structure 6, so as to further improve the integration degree of the power device.

[0133] Integrally installing the coupling structure 6 in the first motor 1 means that the overall structure of the coupling structure 6 can be integrally installed outside the first motor 1; it can also be that the overall structure of the coupling structure 6 is integrally installed inside the first motor 1.

[0134] In some embodiments of the present application, the first motor 1 includes a housing 13, and the coupling structure 6 is arranged inside the housing 13; in this embodiment, by integrally installing the coupling structure 6 in the housing 13 of the first motor 1, the integration degree of the power device is further improved.

[0135] In addition, the housing 13 can provide protection for the coupling structure 6 to prevent the coupling structure 6 from being exposed.

[0136] In some embodiments of the present application, the first motor 1 further includes a rotor 12, which is rotatably disposed within a housing 13 and is in transmission connection with a coupling structure 6; in this embodiment, when the rotor 12 rotates, it can drive the coupling structure 6 to rotate, thereby transmitting kinetic energy to the first actuator 4.

[0137] Specifically, the first output device 3 transmits kinetic energy to a planetary transmission mechanism 2, the planetary transmission mechanism 2 transmits kinetic energy to the rotor 12, the rotor 12 transmits kinetic energy to the coupling structure 6, and the coupling structure 6 can transmit kinetic energy to the first actuator 4.

[0138] Wherein, since both the planetary transmission mechanism 2 and the coupling structure 6 are integrated with the rotor, there is no transmission stage between the planetary transmission mechanism 2 and the coupling structure 6, the number of components in the power system is reduced, and the cost is lowered. When the first output device 3 is the power input source of the first actuator 4, the transmission stage of the power system is reduced and the efficiency is improved.

[0139] In some embodiments of the present application, the coupling structure 6 includes a main body portion 61 and a movable portion 62, and the movable portion 62 can move relative to the main body portion 61; wherein, one of the main body portion 61 and the movable portion 62 is fixedly connected to the rotor 12; in this embodiment, when the main body portion 61 contacts the movable portion 62, the coupling structure 6 can achieve the transmission of kinetic energy between the planetary transmission mechanism 2 and the first actuator 4, and when the main body portion 61 is separated from the movable portion 62, the coupling structure 6 disconnects the transmission of kinetic energy between the planetary transmission mechanism 2 and the first actuator 4.

[0140] Wherein, one of the main body portion 61 and the movable portion 62 is fixedly connected to the rotor 12, which can ensure that when the main body portion 61 and the movable portion 62 are in contact with each other, the coupling structure 6 can rotate along with the rotor 12.

[0141] In some embodiments of the present application, the rotor 12 is provided with a hollow interior; wherein, at least one of the main body portion 61 and the movable portion 62 is disposed within the rotor 12; with such a setting, when integrating the coupling structure 6 into the first motor 1, it can ensure that the length of the first motor 1 in its axial direction will not be too long, thereby further reducing the size of the power system in the axial direction of the first motor 1 to improve the integration degree of the power device.

[0142] In some embodiments of the present application, both the main body portion 61 and the movable portion 62 are located within the rotor 12 to reduce the size of the power system in the axial direction of the first motor 1 and improve the integration degree of the power device.

[0143] Please refer to Figure 8, in some embodiments of the present application, the rotor 12 is hollow, and at least part of the coupling structure 6 and the planetary transmission mechanism 2 are located inside the rotor 12; wherein, the coupling structure 6 and the planetary transmission mechanism 2 are arranged along the axial direction of the rotor 12; in this embodiment, since the rotor 12 is in transmission connection with both the coupling structure 6 and the planetary transmission mechanism 2 and at least part of the coupling structure 6 and the planetary transmission mechanism 2 are located inside the rotor 12, the integration degree of the power device is higher.

[0144] In some embodiments of the present application, the first motor 1 is a flat motor; wherein, the first motor 1 is used as a generator and adopts a flat motor, which can greatly reduce the axial dimension of the first motor 1.

[0145] The present application also proposes a power system, which includes a power device and a first output device. The power device is as described above. Since the power system adopts all the technical solutions of the above-mentioned all embodiments, it has at least the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated here one by one.

[0146] Among them, the first output device 3 is in transmission connection with both the first motor 1 and the planetary transmission mechanism 2, and is used to drive the first motor 1 to supply energy to the power source 19 of the power system and transmit kinetic energy to the planetary transmission mechanism 2; in this embodiment, when the first output device 3 is in a working state, it can drive the first motor 1 to supply energy to the power source 19 of the power system, and at the same time, it can also transmit kinetic energy to the first execution component 4 through the planetary transmission mechanism 2.

[0147] Based on the first output device 3 being applied to a vehicle, the first motor 1 being a generator, and the power source 19 being a battery pack, the first output device 3 can drive the vehicle to travel and drive the generator to supply power to the battery pack.

[0148] In some embodiments of the present application, the first output device 3 is an engine.

[0149] In some embodiments of the present application, the power system further includes a coupling structure 6 and a first transmission structure 7. The coupling structure 6 is in transmission connection with the planetary transmission mechanism 2 and is used to transmit power between the planetary transmission mechanism 2 and the first execution component 4 or disconnect the power transmission between the planetary transmission mechanism 2 and the first execution component 4. The input end of the first transmission structure 7 is in transmission connection with the output end of the coupling structure 6, and the output end of the first transmission structure 7 is used to drive the first execution component 4 to work; in this embodiment, the first transmission structure 7 can realize the kinetic energy transmission between the coupling structure 6 and the first execution component 4.

[0150] In some embodiments of the present application, the first transmission structure 7 includes a first gear 71 and a second gear 72, the first gear 71 is fixedly connected to the output end of the coupling structure 6; the second gear 72 is meshed with the first gear 71 and forms the output end of the first transmission structure 7; in this embodiment, the meshing of the first gear 71 and the second gear 72 can realize the kinetic energy transmission between the coupling structure 6 and the first actuator 4.

[0151] like Figure 1 As shown, in Figure 1 In the working condition where the first output device 3 is used as the output power source, the first gear 71 and the second gear 72 are the secondary transmission gears of the first output device 3 .

[0152] In some embodiments of the present application, the power system also includes a second output device 8, and the output end of the second output device 8 is transmission-connected to at least one of the first gear 71 and the second gear 72; in this embodiment, by setting the second output device 8 to be transmission-connected to the first gear 71 and the second gear 72, the second output device 8 can transmit kinetic energy to the first actuator 4 through the first transmission structure 7, that is, the second output device 8 can reuse the components on the power transmission path of the first output device 3 to transmit kinetic energy, so as to further improve the integration of the power system.

[0153] In some embodiments of the present application, the second output device 8 is a first driving motor.

[0154] In some embodiments of the present application, the power system also includes a third gear 9, which is arranged at the output end of the second output device 8; wherein the third gear 9 is meshed with the second gear 72 or the third gear 9 is arranged between the first gear 71 and the second gear 72 and is meshed with both the first gear 71 and the second gear 72; in this embodiment, through the meshing relationship between the third gear 9 and the first gear 71 and the second gear 72, the kinetic energy of the second output device 8 can be transmitted from the first transmission structure 7 to the first actuator 4.

[0155] In some embodiments of the present application, the third gear 9 meshes with the first gear 71 .

[0156] See also Figure 9 In some other embodiments of the present application, the third gear 9 is disposed between the first gear 71 and the second gear 72 and is meshed with both the first gear 71 and the second gear 72; this can reduce the axial and radial dimensions of the power system and improve the lightweight requirements of the power system.

[0157] Specifically, see Figure 1, a gear is shared between the first-level driven shaft in the power transmission path between the second output device 8 and the first execution component 4 and the second-level driven shaft in the power transmission path between the first output device 3 and the first execution component 4, making the power system simple in structure, reduced in size, and better in cost lightweight.

[0158] Please refer to Figure 8 , in some other embodiments of the present application, the third gear 9 meshes with the second gear 72.

[0159] In some embodiments of the present application, the power system further includes a differential 10. The input end of the differential 10 is in transmission connection with the output end of the first transmission structure 7, and the output end of the differential 10 is used to drive the first execution component 4 to work; wherein, the output end of the differential 10 is respectively connected to two axles, the first execution component 4 includes two wheels, and the two wheels are respectively connected to the two axles; the differential 10 can make the two wheels rotate at different speeds while transmitting kinetic energy, thereby improving the driving stability and controllability of the vehicle.

[0160] In some embodiments of the present application, the power system further includes a sixth gear 17 and a seventh gear 18. The sixth gear 17 is connected to the second gear 72 through a connecting shaft, and the seventh gear 18 meshes with the sixth gear 17 as a part of the differential 10 to realize the kinetic energy transmission between the first transmission structure 7 and the differential 10.

[0161] Wherein, since the sixth gear 17 can transmit kinetic energy to the differential 10, the kinetic energy of the first output device 3 and the second output device 8 will finally be transmitted to the differential 10 through the sixth gear 17.

[0162] On the basis that the first output device 3 and the second output device 8 are an engine and a first drive motor respectively, the vehicle shares the sixth gear 17 to output kinetic energy under the direct drive condition and the pure electric condition, thereby being able to reduce the axial and radial dimensions of the power system, greatly improving the integration degree of the power system, reducing the weight of the power system, and making more layout space available for increasing the battery capacity, increasing the pure electric range of the vehicle.

[0163] In some embodiments of the present application, both the sixth gear 17 and the seventh gear 18 are bevel gears.

[0164] Please refer to Figure 1 , Figure 10 and Figure 11 , in some embodiments of the present application, the power system further includes a second transmission structure 14. The input end of the second transmission structure 14 is in transmission connection with the output end of the planetary transmission mechanism 2, and the output end of the second transmission structure 14 is in transmission connection with the input end of the coupling structure 6; in this embodiment, the second transmission structure 14 can realize the kinetic energy transmission between the planetary transmission mechanism 2 and the coupling structure 6.

[0165] In some embodiments of the present application, the second transmission structure 14 includes a fourth gear 141 and a fifth gear 142. The fourth gear 141 forms the input end of the second transmission structure 14; the fifth gear 142 meshes with the fourth gear 141 and forms the output end of the second transmission structure 14; in this embodiment, the meshing between the fifth gear 142 and the fourth gear 141 can realize the kinetic energy transmission between the planetary transmission mechanism 2 and the coupling structure 6.

[0166] In some embodiments of the present application, the power system further includes a second output device 8, and the second output device 8 is used to transmit kinetic energy to the first actuator 4; that is to say, in this embodiment, the first output device 3 and the second output device 8 can be used to output kinetic energy to the first actuator 4 respectively, so that the power system has different working modes under different working conditions.

[0167] Taking the power system applied to a vehicle as an example, the first output device 3 is an engine, the second output device 8 is a first drive motor, and the first actuator 4 is the wheel of the vehicle for explanation. It can be understood that if the vehicle is a front-wheel drive vehicle, the first actuator 4 is the front wheel of the vehicle; if the vehicle is a rear-wheel drive vehicle, the first actuator 4 is the rear wheel of the vehicle.

[0168] In some embodiments of the present application, the power system has a first working mode. When the power system is in the first working mode, the first output device 3 drives the first motor 1 to supply energy to the power source 19, and the second output device 8 transmits kinetic energy to the wheels; that is to say, in this embodiment, the engine only works to drive the generator to charge the battery pack, and the battery pack supplies power to the first drive motor, and the first drive motor drives the wheels to rotate to realize the operation of the vehicle.

[0169] In some embodiments of the present application, the power system has a second working mode. When the power system is in the second working mode, the first output device 3 transmits kinetic energy to the first actuator 4 through the planetary transmission mechanism 2, and the second output device 8 transmits kinetic energy to the first actuator 4; that is to say, in this embodiment, the engine only works to transmit kinetic energy to the wheels through the planetary transmission mechanism 2 to drive the wheels to rotate, and at the same time the first drive motor also drives the wheels to rotate, so as to realize the operation of the vehicle.

[0170] In some embodiments of the present application, the power system has a third working mode. When the power system is in the third working mode, the first output device 3 drives the first motor 1 to supply energy to the power source 19, and transmits kinetic energy to the first actuator 4 through the planetary transmission mechanism 2, and the second output device does not work; that is to say, in this embodiment, the engine can work to drive the generator to charge the battery pack, and can also transmit kinetic energy to the wheels through the planetary transmission mechanism 2 to drive the wheels to rotate, so as to realize the operation of the vehicle.

[0171] Please refer to Figure 12 Figure 12 , in some embodiments of the present application, the power system further includes a third output device 15, and the third output device 15 is used for driving connection with the second execution component 16 to drive the second execution component 16 to work; wherein, the third output device 15 can transmit kinetic energy to the second execution component 16 to drive the second execution component 16 to work.

[0172] In some embodiments of the present application, the third output device 15 is a second driving motor.

[0173] In some embodiments of the present application, the power system further includes a third transmission structure 21, and the third output device 15 transmits kinetic energy to the second execution component 16 through the third transmission structure 21.

[0174] In some embodiments of the present application, the second execution component 16 is the rear wheel of the vehicle, and the power system can drive the rear wheel of the vehicle to work.

[0175] Taking the power system applied to a vehicle, the first output device 3 is an engine, the second output device 8 is a first driving motor, the third output device 15 is a second driving motor, the first execution component 4 is the front wheel of the vehicle, and the second execution component 16 is the rear wheel of the vehicle as an example, various working conditions of the vehicle are described.

[0176] Pure electric mode:

[0177] When the remaining battery power is relatively high or the driver selects the pure electric working mode, the whole vehicle can, according to actual needs, through the control of the coupling structure 6, the second output device 8 and the third output device 15, realize three pure electric working modes of front-wheel drive, rear-wheel drive and four-wheel drive.

[0178] Specifically as follows.

[0179] The second output device 8 works to drive the front wheels to rotate, and the third output device 15 does not work, that is, the vehicle is front-wheel drive.

[0180] The second output device 8 does not work, and the third output device 15 works to drive the rear wheels to rotate, that is, the vehicle is rear-wheel drive.

[0181] The second output device 8 works to drive the front wheels to rotate, and the third output device 15 works to drive the rear wheels to rotate, that is, the vehicle is four-wheel drive.

[0182] Direct drive mode:

[0183] When the vehicle speed is relatively high or the remaining power of the power battery is relatively low, the coupling structure 6 is combined, and the direct drive function of the first output device 3 can be realized, and the front-wheel drive or four-wheel drive function can be realized in cooperation with the third output device 15. When the remaining power of the power battery is relatively low and the whole vehicle is in a parked state, the in-situ power generation function can be realized.

[0184] As follows.

[0185] When the first output device 3 is in the working state and the coupling structure 6 does not transfer kinetic energy, when the first motor 1 works, the first output device 3 can drive the first motor 1 to supply energy to the power source 19; that is, supply power to the battery pack.

[0186] When the first output device 3 is in the working state and the coupling structure 6 transfers kinetic energy, the first output device 3 can drive the front wheels to work; at this time, if the first motor 1 works, the first motor 1 can supply energy to the power source 19; if the third output device 15 works, the first output device 3 can cooperate with the third output device 15 to achieve four-wheel drive of the vehicle.

[0187] Series mode

[0188] When the vehicle speed is too high or the remaining power of the power battery is low, the coupling structure 6 is not engaged, and the first output device 3 can drive the first motor 1 to generate electricity. Cooperating with the third output device 15, functions such as series front-wheel drive, rear-wheel drive, and four-wheel drive can be achieved.

[0189] The first output device 3 works, the coupling structure 6 is not engaged, and the first motor 1 works. At this time, the first motor 1 can supply power to the power source 19. On this basis, when the second output device 8 works and the vehicle is front-wheel drive, when the third output device 15 works, the vehicle is rear-wheel drive, and when the second output device 8 and the third output device 15 work, the vehicle is four-wheel drive.

[0190] Parallel mode

[0191] When the vehicle is overtaking or in high-power off-road working conditions, the coupling structure 6 is engaged, and the first output device 3, the second output device 8, and the third output device 15 can be jointly driven, greatly improving the power performance and off-road performance.

[0192] Among them, if the first output device 3 and the second output device 8 work, the vehicle is front-wheel drive; if the first output device 3, the second output device 8, and the third output device 15 work simultaneously, the vehicle is four-wheel drive. In summary, the power system in the embodiment of the present application can realize the pure electric mode, direct drive mode, series mode, and parallel mode of the vehicle. The first motor 1 adopts a flat motor, and a planetary transmission mechanism 2 is integrated in the rotor 12. Through the speed ratio adjustment of the planetary transmission mechanism 2, an efficient matching between the first motor 1 and the first output device 3 can be achieved, which can greatly improve the power generation efficiency. At the same time, since the planetary transmission mechanism 2 is integrated in the rotor 12, the axial and radial dimensions of the power system are synchronously reduced, the integration degree of the power system is greatly improved, the weight of the power system is reduced, and the layout space can be used more for increasing the battery capacity, increasing the pure electric cruising range of the vehicle.

[0193] The present application also provides a vehicle, which includes a power system as described above. Since the vehicle adopts all the technical solutions of the above-mentioned all embodiments, it has at least the beneficial effects brought by the technical solutions of the above-mentioned embodiments.

[0194] In the description of the present application, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "a plurality of" means two or more, unless otherwise specifically defined.

[0195] In the above embodiments, each embodiment is described with emphasis. For the parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0196] Among the embodiments, implementation manners and related technical features of the present application, they can be combined and replaced with each other without conflict.

[0197] The above are only the preferred embodiments of the present application and do not impose any form of limitation on the present application. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application still fall within the scope of the technical solution of the present application.

Claims

1. A power device, characterized in that, Comprising: A first motor; And A planetary transmission mechanism, integrally installed on the first motor.

2. The power device according to claim 1, characterized in that, The first motor includes: A housing, and the planetary transmission mechanism is disposed within the housing.

3. The power device according to claim 2, wherein, The first motor further includes: A rotor, rotatably disposed within the housing and drivingly connected to the planetary transmission mechanism.

4. The power device according to claim 3, characterized in that, The planetary transmission mechanism includes: A ring gear; A planet carrier, located within the ring gear, at least one planet gear is disposed on the planet carrier, and the planet gear meshes with the ring gear; and A sun gear, meshing with the planet gear; Wherein, two of the ring gear, the planet carrier and the sun gear are capable of moving relative to the other one of the ring gear, the planet carrier and the sun gear; the rotor is fixedly connected to one of the ring gear, the planet carrier and the sun gear.

5. The power device according to claim 4, characterized in that, The other one of the ring gear, the planet carrier and the sun gear is fixed to the housing.

6. The power device according to claim 4, characterized in that, The rotor is provided with a hollow interior; Wherein, at least one of the ring gear, the planet carrier and the sun gear is disposed within the rotor.

7. The power device according to claim 3, characterized in that, The first motor further includes: A stator, fixedly disposed within the housing; Wherein, the rotor is disposed within the enclosed space of the stator and is capable of rotating relative to the stator.

8. The power device according to any one of claims 1 to 7, characterized in that, The power device further includes: A coupling structure, drivingly connected to the planetary transmission mechanism, for transmitting power between the planetary transmission mechanism and a first actuating member or disconnecting the power transmission between the planetary transmission mechanism and the first actuating member.

9. The power device according to claim 8, characterized in that, The coupling structure is integrally installed on the first motor.

10. The power device according to claim 9, characterized in that, The first motor includes: A housing, and the coupling structure is disposed within the housing.

11. The power device according to claim 10, characterized in that, The first motor further includes: A rotor, rotatably disposed within the housing and drivingly connected to the coupling structure.

12. The power device according to claim 11, characterized in that, The coupling structure includes: A main body portion; and A movable portion, capable of moving relative to the main body portion; Wherein, one of the main body portion and the movable portion is fixedly connected to the rotor.

13. The power device according to claim 12, characterized in that, The rotor is provided with a hollow interior; Wherein, at least one of the main body portion and the movable portion is disposed within the rotor.

14. The power device according to claim 11, characterized in that, The rotor is provided with a hollow interior, and at least a part of the coupling structure and the planetary transmission mechanism are both located within the rotor; Wherein, the coupling structure and the planetary transmission mechanism are arranged along the axial direction of the rotor.

15. The power device according to any one of claims 1 to 7, characterized in that, The first motor is a flat motor.

16. A power system, characterized in that, Comprising: The power device according to any one of claims 1 to 15; And A first output device, drivingly connected to both the first motor and the planetary transmission mechanism, for driving the first motor to supply energy to a power source and transmitting kinetic energy to a first actuating member through the planetary transmission mechanism.

17. The power system according to claim 16, characterized in that, The power system further includes: A coupling structure, drivingly connected to the planetary transmission mechanism, for transmitting power between the planetary transmission mechanism and the first actuating member or disconnecting the power transmission between the planetary transmission mechanism and the first actuating member; and A first transmission structure, an input end of the first transmission structure is drivingly connected to an output end of the coupling structure, and an output end of the first transmission structure is used for driving the first actuating member to operate.

18. The power system according to claim 17, wherein The first transmission structure includes: A first gear, fixedly connected to the output end of the coupling structure; and The second gear, which meshes with the first gear and forms the output end of the first transmission structure.

19. The power system according to claim 18, characterized in that, The power system further includes: A second output device, the output end of which is drivingly connected to at least one of the first gear and the second gear.

20. The power system according to claim 19, characterized in that, The power system further includes: A third gear, which is disposed at the output end of the second output device; wherein the third gear meshes with the second gear or the third gear is disposed between the first gear and the second gear and meshes with both the first gear and the second gear.

21. The power system according to claim 17, characterized in that, The power system further includes: A differential, the input end of which is drivingly connected to the output end of the first transmission structure, and the output end of which is used to drive the first actuating member to operate.

22. The power system according to claim 17, characterized in that, The power system further includes: A second transmission structure, the input end of which is drivingly connected to the output end of the planetary transmission mechanism, and the output end of which is drivingly connected to the input end of the coupling structure.

23. The power system according to claim 22, characterized in that, The second transmission structure includes: A fourth gear, which forms the input end of the second transmission structure; and A fifth gear, which meshes with the fourth gear and forms the output end of the second transmission structure.

24. The power system according to any one of claims 16 to 23, characterized in that, The power system further includes: A second output device, which is used to transmit kinetic energy to the first actuating member.

25. The power system according to claim 24, wherein The power system has a first operating mode; When the power system is in the first operating mode, the first output device drives the first motor to supply energy to the power source, and the second output device transmits kinetic energy to the first actuating member.

26. The power system according to claim 24, characterized in that, The power system has a second operating mode; When the power system is in the second operating mode, the first output device transmits kinetic energy to the first actuating member through the planetary transmission mechanism, and the second output device transmits kinetic energy to the first actuating member.

27. The power system according to claim 24, characterized in that, The power system has a third operating mode; When the power system is in the third operating mode, the first output device drives the first motor to supply energy to the power source and transmits kinetic energy to the first actuating member through the planetary transmission mechanism, and the second output device does not operate.

28. The power system according to any one of claims 16 to 23, characterized in that, The power system further includes: A third output device, which is used to be drivingly connected to a second actuating member to drive the second actuating member to operate.

29. A vehicle, characterized in that, Comprising the power device according to any one of claims 1 to 15 or the power system according to any one of claims 16 to 28.

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