CAIXA DE ENGRENAGENS, SISTEMA DE ENERGIA HÍBRIDO, E, VEÍCULO

Abstract

A gearbox, a hybrid power system, and an automobile. The gearbox comprises: a first main shaft (11), a second main shaft (12), a first clutch assembly (21), a second clutch assembly (22), a first gear train (31), and a second gear train (32). The first main shaft (11) and the second main shaft (12) are arranged in parallel; the first main shaft (11) is configured to be transmittingly connected to an electric motor; and the second main shaft (12) is configured to be transmittingly connected to wheels. The first clutch assembly (21) connects with the first main shaft (11) and is transmittingly connected to an engine by means of the first gear train (31); the second clutch assembly (22) connects with the first main shaft (11) and is transmittingly connected to the second main shaft (12) by means of the second gear train (32).

Description

24 GEARBOX, HYBRID POWER SYSTEM, AND VEHICLE TECHNICAL FIELD

[001] The present invention relates to the field of vehicle technology and, in particular, to a gearbox, a hybrid power system and a vehicle. FUNDAMENTALS

[002] Fossil fuels (such as gasoline and diesel) are mainly used in traditional vehicles to power their engines, and the exhaust gases emitted by these engines cause environmental pollution. Therefore, it is crucial to use vehicles powered by new energies, which utilize new non-polluting energy sources, such as electricity, to replace fossil fuels as energy sources. New energy vehicles are the trend of development. Hybrid vehicles are an important type of new energy vehicle. SUMMARY

[003] The embodiments of the present invention provide a gearbox, a hybrid power system and a vehicle. The technical solutions are as follows.

[004] According to some embodiments of the present invention, a gearbox is provided. The gearbox includes a first main shaft, a second main shaft, a first clutch assembly, a second clutch assembly, a first gear train and a second gear train; wherein the first main shaft is parallel to the second main shaft, the first main shaft is configured to be drivenly connected to a motor, and the second main shaft is configured to be drivenly connected to the wheels; one end of the first gear train is drivenly connected to a propeller, and the other end of the first gear train is driven to a propeller. Petition 870250076750, dated 08 / 28 / 2025, page 53 / 82 / 24 gears are connected in an actuated manner to the first main shaft by means of the first clutch assembly; and one end of the second gear train is connected in an actuated manner to the first main shaft by means of the second clutch assembly, and the other end of the second gear train is connected in an actuated manner to the second main shaft.

[005] In some embodiments, the first clutch assembly includes a first annular steel disc, a first clutch disc, a first clutch collar, and a first hollow shaft, wherein an outer circumferential wall of the first annular steel disc is connected to an inner wall of the first clutch collar, the first clutch disc is movably axially lined onto the first hollow shaft, the first clutch disc is circumferentially locked to the first hollow shaft, the first hollow shaft is movably lined onto the first main shaft, the first clutch collar is coaxially connected to the first main shaft, an input gear of the first gear train is configured to be coaxially connected to an output shaft of a propeller, and an output gear of the first gear train is fixedly lined onto the first hollow shaft;and the second clutch assembly includes a second annular steel disc, a second clutch disc, a second clutch collar, and a second hollow shaft, wherein an outer circumferential wall of the second annular steel disc is connected to an inner wall of the second clutch collar, the second clutch disc is movably axially coated on the second hollow shaft, the second clutch disc is circumferentially locked onto the second hollow shaft, the second hollow shaft is movably coated on the first main shaft, the second clutch collar is coaxially connected to the first main shaft, and an input gear of the second gear train is fixed; Petition 870250076750, dated 08 / 28 / 2025, page 54 / 82 / 24 coated on the second hollow shaft and an output gear of the second gear train is fixedly coated on the second main shaft.

[006] In some embodiments, the gearbox additionally includes a third main shaft, a third clutch assembly and a third gear train, wherein the third main shaft is parallel to the first main shaft;wherein the third clutch assembly includes a third annular steel disc, a third clutch disc, a third clutch collar, and a third hollow shaft, wherein an outer circumferential wall of the third annular steel disc is connected to an inner wall of the third clutch collar, the third clutch disc is movably axially coated on the third hollow shaft, the third clutch disc is circumferentially locked to the third hollow shaft, the third hollow shaft is movably coated on the third main shaft, the third clutch collar is coaxially connected to the third main shaft, an input gear of the third gear train is fixedly coated on the third hollow shaft, and an output gear of the third gear train is fixedly coated on the second main shaft.

[007] In some embodiments, the gearbox additionally includes a fourth main shaft, wherein the fourth main shaft and the first main shaft are coaxially spaced, and the fourth main shaft is configured to be drivenly connected to a motor or propeller; wherein the third gear train additionally includes at least one intermediate gear, and the intermediate gear of the third gear train is fixedly attached to the fourth main shaft.

[008] In some embodiments, the gearbox additionally includes a telescopic shaft and a transmission cylinder, wherein the transmission cylinder has one closed end and one closed end. Petition 870250076750, dated 08 / 28 / 2025, page 55 / 82 / 24 open opposite the closed end, the closed end is coaxially connected to one end of the telescopic shaft, and the other end of the telescopic shaft is coaxially connected to the fourth main shaft; wherein the teeth of the first gear are circumferentially spaced on an outer circumferential wall of the transmission cylinder, the teeth of the second gear are circumferentially spaced on an inner wall of the second hollow shaft, and an outer diameter of the transmission cylinder is less than an inner diameter of the second hollow shaft;The telescopic shaft is configured to control the transmission cylinder to move to a first or second position; the transmission cylinder is inserted into the second hollow shaft in the case where the transmission cylinder is in the first position, and the teeth of the first gear are engaged with the teeth of the second gear; and the transmission cylinder is outside the second hollow shaft in the case where the transmission cylinder is in the second position.

[009] In some embodiments, the gearbox additionally includes a shift lever and an actuating element, wherein one end of the shift lever is connected to the actuating element, and the actuating element is configured to actuate the shift lever to move along an axial direction of the telescopic shaft; wherein a positioning slider is disposed at the other end of the shift lever, an annular dovetail groove is disposed at the closed end, the annular dovetail groove is coaxial with a central axis of the transmission cylinder, and the positioning slider is disposed in a sliding manner in the annular dovetail groove.

[0010] In some embodiments, the telescopic shaft includes a first subshaft and a second subshaft that are coaxially coated, wherein a hole is disposed on an end surface of a first end. Petition 870250076750, dated 08 / 28 / 2025, page 56 / 82 / 24 of the second subshaft, a first end of the first subshaft is inserted coaxially into the hole, the first subshaft is circumferentially locked to the second subshaft, a second end of the first subshaft is connected to the closed end and a second end of the second subshaft is connected to the fourth main shaft.

[0011] According to some embodiments of the present invention, a hybrid power system is provided. The hybrid power system includes a propeller, a first motor and the gearbox, as described above; an output shaft of the motor is drivenly connected to a second connecting part of the first clutch assembly, a shaft of the first motor is coaxially connected to the first main shaft, and the first main shaft is coaxially connected to a first connecting part of the first clutch assembly.

[0012] In some embodiments, the hybrid power system additionally includes a power supply assembly, in which the power supply assembly includes a battery and an inverter, where the inverter is connected to the battery, and the first motor is connected to the inverter.

[0013] In some embodiments, the hybrid power system additionally includes a differential, wherein the differential is driven-connected to the second main axle, and the differential is configured to be driven-connected to the wheels.

[0014] According to some embodiments of the present invention, a vehicle is provided. The vehicle includes a body and the hybrid power system as described above, wherein the hybrid power system is disposed in the vehicle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] For clearer descriptions of the technical solutions according to the embodiments of the present invention, the accompanying drawings necessary to describe the embodiments are briefly presented below. Petition 870250076750, dated 08 / 28 / 2025, page 57 / 82 / 24 Apparently, the attached drawings in the following description show only a few examples of the present invention, and those skilled in the art can still derive other designs from these attached drawings without creative effort.

[0016] Figure 1 is a structural diagram of a hybrid energy system according to some embodiments of the present invention; Figure 2 is a structural diagram of a gearbox according to some embodiments of the present invention; Figure 3 is a partial structural diagram of another gearbox according to some embodiments of the present invention; Figure 4 is a partial structural diagram of another gearbox according to some embodiments of the present invention; Figure 5 is a power transmission diagram of a hybrid power system according to some embodiments of the present invention; Figure 6 is a power transmission diagram of a hybrid power system according to some embodiments of the present invention; Figure 7 is a power transmission diagram of a hybrid power system according to some embodiments of the present invention; Figure 8 is a power transmission diagram of a hybrid power system according to some embodiments of the present invention; Figure 9 is a power transmission diagram of a hybrid power system according to some embodiments of the present invention; and Figure 10 is a power transmission diagram of a hybrid power system according to some embodiments of the present invention. Petition 870250076750, dated 08 / 28 / 2025, page 58 / 82 / 24 invention. DETAILED DESCRIPTION

[0017] Unless otherwise defined, the technical or scientific terms contained in this document shall have the common meaning understood by those skilled in the art to which this invention relates. The terms “first,” “second,” “third,” and similar terms in the descriptive report and claims of this patent invention do not indicate any order, quantity, or importance, but are used only to distinguish different components. Similarly, terms such as “a” or “an” do not imply a limitation of quantity, but indicate the presence of at least one. Terms such as “including” or “comprising” indicate that the elements or objects listed before “including” or “comprising” encompass the elements or objects listed after “including” or “comprising” and their equivalents, without excluding other elements or objects.“Connected” or “connected to” and similar terms are not limited to physical or mechanical connections, but may include electrical connections, direct or indirect. “Above,” “below,” “left,” “right,” and similar terms are used only to indicate relative positional relationships. When the absolute position of the object described changes, the relative positional relationships may also change consequently.

[0018] For clearer descriptions of the objectives, technical solutions and advantages of the present invention, embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0019] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described with reference to the drawings are exemplary and are intended to explain the present invention and should not be interpreted as Petition 870250076750, dated 08 / 28 / 2025, p. 59 / 82 / 24 limitations of the scope of the present invention.

[0020] In the related art, the hybrid vehicle utilizes a hybrid power system for locomotion. A hybrid power system typically includes a propulsion system, an electric motor, a first main shaft, and a second main shaft. The electric motor shaft is drivenly connected to the first main shaft. The first main shaft is drivenly connected to the second main shaft via a gear system. The second main shaft is configured to be drivenly connected to the wheels. The electric motor shaft is also drivenly connected to the propulsion system's output shaft.

[0021] When the hybrid system is in operation, part of the propeller's energy drives the motor to generate electricity, and the other part drives the wheels. In this way, the propeller's energy cannot be fully utilized for power generation, which affects the efficiency of power generation. Furthermore, in single-motor drive mode, the motor's output energy is transmitted to the propeller and drags it to rotate, which causes energy loss.

[0022] Figure 1 is a structural diagram of a hybrid power system according to some embodiments of the present invention. As shown in Figure 1 and Figure 2, the gearbox includes a first main shaft 11, a second main shaft 12, a first clutch assembly 21, and a second clutch assembly 22. The first main shaft 11 is parallel to the second main shaft 12. The first main shaft 11 is configured to be drivenly connected to the motor (first motor 52), and the second main shaft 12 is configured to be drivenly connected to the wheels. One end of the first gear train 31 is drivenly connected to the motor 51, and the other end is drivenly connected to the first main shaft 11 via the first clutch assembly 21. One end of the second Petition 870250076750, dated 08 / 28 / 2025, page 60 / 82 / 24 gear train 32 is connected in an actuated manner to the first main shaft 11 by means of the second clutch assembly 22, and the other end is connected in an actuated manner to the second main shaft 12.

[0023] In the gearbox according to some embodiments of the present invention, the first gear train 31 is drivenly connected to the first main shaft 11 by means of the first clutch assembly 21, thus controlling whether the power of the propeller 51 is transmitted to the motor (first motor 52). In addition, the second gear train 32 is drivenly connected to the first main shaft 11 by means of the second clutch assembly 22, thus controlling whether the power of the motor (first motor 52) is transmitted to the second main shaft 12 to make the wheels rotate.

[0024] In the case of pure power generation mode, the first clutch assembly 21 is engaged and the second clutch assembly 22 is disengaged, so that the engine power is transmitted only to the motor (first motor 52), without being transmitted to the second main shaft 12 and dragging other components, thus reducing energy loss. In the case of single motor mode, the first clutch assembly 21 is disengaged and the second clutch assembly 22 is engaged, so that the engine power (first motor 52) is transmitted only to the second main shaft 12 to drive the wheels, without being transmitted to the propeller 51, thus avoiding energy loss.

[0025] As shown in Figure 2, the first clutch assembly 21 includes a first annular steel disc 211, a first clutch disc 212, a first clutch collar 213, and a first hollow shaft 214. The outer circumferential wall of the first annular steel disc 211 is connected to the inner wall of the first clutch collar 213. The first clutch disc 212 is movably axially coated. Petition 870250076750, dated 08 / 28 / 2025, page 61 / 82 / 24 regarding the first hollow shaft 214, and the first clutch disc 212 is circumferentially locked to the first hollow shaft 214. The first hollow shaft 214 is movably coated on the first main shaft 11. The first clutch collar 213 is coaxially connected to the first main shaft 11. The input gear of the first gear train 31 is coaxially connected to the output shaft of the propeller 51. The output gear of the first gear train 31 is fixedly coated on the first hollow shaft 214.

[0026] As shown in Figure 2, the second clutch assembly 22 includes a second annular steel disc 221, a second clutch disc 222, a second clutch collar 223, and a second hollow shaft 224. The outer circumferential wall of the second annular steel disc 221 is connected to the inner wall of the second clutch collar 223. The second clutch disc 222 is movably axially fitted onto the second hollow shaft 224, and the second clutch disc 222 is circumferentially locked to the second hollow shaft 224. The second hollow shaft 224 is movably fitted onto the first main shaft 11. The second clutch collar 223 is coaxially connected to the first main shaft 11. The input gear of the second gear train 32 is fixedly fitted onto the second hollow shaft 224. The output gear of the second gear train 32 is fixedly fitted onto the second main shaft 12.

[0027] In the gearbox according to some embodiments of the present invention, the first clutch collar 213 of the first clutch assembly 21 is connected to the first main shaft 11, and the first hollow shaft of the first clutch assembly 21 is connected to the propeller by means of the first gear train 31, so that the first clutch assembly 21 controls whether the power of the propeller 51 is transmitted to the motor (first motor 52). Furthermore, the second collar of Petition 870250076750, dated 08 / 28 / 2025, page 62 / 82 / 24 clutch of the second clutch assembly 22 is connected to the first main shaft 11, and the second hollow shaft of the second clutch assembly 22 is connected to the second main shaft 12 by means of the second gear train 32, so that the second clutch assembly 22 controls whether the power from the motor (first motor 52) is transmitted to the second main shaft 12 to drive the wheels.

[0028] In the case of needing pure power generation mode, the first annular steel disc 211 and the first clutch disc 212 of the first clutch assembly 21 are engaged, and the second annular steel disc 211 and the second clutch disc 212 of the second clutch assembly 22 are disengaged, so that the motor power is transmitted only to the motor (first motor 52) without the second main shaft 12, thus reducing power loss. In the case of single-motor mode being required, the first annular steel disc 211 and the first clutch disc 212 of the first clutch assembly 21 are disengaged, and the second annular steel disc 221 and the second clutch disc 222 of the second clutch assembly 22 are engaged, so that the power from the motor (first motor 52) is transmitted only to the second main shaft 12 to drive the wheels, and not transmitted to the propeller 51, thus avoiding power loss.

[0029] For example, an axially extending groove is disposed on the inner wall of the first clutch collar 213, and a protrusion is disposed on the outer circumferential wall of the first annular steel disc 211. The protrusion can slide axially along the first clutch collar 213 within the groove, thus achieving circumferential locking of the annular steel disc when installed on the first clutch collar 213.

[0030] For example, an axially extending groove is arranged on the outer wall of the first hollow shaft 214, and a protrusion is Petition 870250076750, dated 08 / 28 / 2025, page 63 / 82 / 24 disposed on the wall of the inner hole of the first clutch disc 212. The protrusion can slide axially along the first hollow shaft 214 within the groove, so that the first clutch disc 212 is locked circumferentially to the first hollow shaft 214.

[0031] In the event that the first clutch assembly 21 needs to be engaged, the actuating device controls the first annular steel disc 211 to come into contact with the first clutch disc 212, thus establishing a power transmission connection between the first hollow shaft 214 and the first clutch collar 213.

[0032] In embodiments of the present invention, the first gear train 31 includes at least one input gear and one output gear, and the input gear is driven connected to the output gear, so that power is transmitted from the input gear to the output gear.

[0033] In some embodiments, in the first gear train 31, the input gear and the output gear are directly engaged, or at least a connecting gear is arranged between the input gear and the output gear.

[0034] It should be noted that the specific number of gears in the first gear train 31 is determined based on actual needs.

[0035] For example, a protrusion is arranged on the outer circumferential wall of the second annular steel disc 221, the protrusion can slide axially along the inner wall of the second clutch collar within the groove, thus achieving circumferential locking of the second annular steel disc 221 when installed on the second clutch collar.

[0036] For example, an axially extending groove is arranged on the outer wall of the second hollow shaft 224, and a protrusion is Petition 870250076750, dated 08 / 28 / 2025, page 64 / 82 / 24 disposed on the wall of the inner hole of the second clutch disc 222, and the protrusion can slide axially along the second hollow shaft 224 within the groove, so that the second clutch disc 222 is locked circumferentially to the second hollow shaft 224.

[0037] In the event that the second clutch assembly needs to be engaged, the actuating device controls the second annular steel disc 221 to come into contact with the second clutch disc 222, thus establishing a power transmission connection between the second hollow shaft 224 and the second clutch collar 213.

[0038] In embodiments of the present invention, the second gear train 32 includes at least one input gear and one output gear, and the input gear is drivenly connected to the output gear, such that power is transmitted from the input gear to the output gear.

[0039] In some embodiments, in the second gear train 32, the input gear and the output gear are directly engaged, or at least a connecting gear is arranged between the input gear and the output gear.

[0040] It should be noted that the specific number of gears in the second gear train 32 is determined based on actual needs.

[0041] In some embodiments, as shown in Figure 1 and Figure 2, the gearbox additionally includes a third main shaft 13, a third clutch assembly 23 and a third gear train 33, wherein the third main shaft 13 is parallel to the first main shaft 11.

[0042] As shown in Figure 1, the third clutch assembly 23 includes a third annular steel disc 231, a third clutch disc 232, a third clutch collar 233 and a third shaft. Petition 870250076750, dated 08 / 28 / 2025, page 65 / 82 / 24 hollow 234. The outer circumferential wall of the third annular steel disc 231 is connected to the inner wall of the third clutch collar 233. The third clutch disc 232 is movably axially coated on the hollow third shaft 234, and the third clutch disc 232 is circumferentially locked to the hollow third shaft 234. The hollow third shaft 234 is movably coated on the main third shaft 13. The clutch collar 233 is coaxially connected to the main third shaft 13. The input gear of the third gear train 33 is fixedly coated on the hollow third shaft 234.

[0043] For example, a protrusion is disposed on the outer circumferential wall of the third annular steel disc 231, and the protrusion can slide axially along the inner wall of the third clutch collar 233 within the groove, thus achieving circumferential locking of the third annular steel disc 231 when installed on the third clutch collar 233.

[0044] For example, an axially extending groove is disposed on the outer wall of the hollow third shaft 234, a protrusion is disposed on the inner bore wall of the clutch third disc 232, and the protrusion can slide axially along the hollow third shaft 234 within the groove, so that the clutch third disc 232 is circumferentially locked to the hollow third shaft 234.

[0045] In the event that the third clutch assembly 23 is engaged, the actuating device controls the third annular steel disc 231 to come into contact with the third clutch disc 232, thus establishing a power transmission connection between the third hollow shaft 234 and the third clutch collar 233.

[0046] In the above embodiments, the third main shaft 13 is connected to the input gear of the third gear train 33 by means of the third clutch assembly 23, and the third main shaft 13 is Petition 870250076750, dated 08 / 28 / 2025, page 66 / 82 / 24 configured to be connected in an actuated manner to the propeller 51, so that the third clutch assembly 23 controls whether the energy from the propeller 51 is transmitted to the wheels by means of the third main shaft 13 and the third gear train 33.

[0047] In the event that the propeller 51 needs to be engaged, the first annular steel disc 211 and the first clutch disc 212 of the first clutch assembly 21 are disengaged, and the third annular steel disc 231 and the third clutch disc 232 of the third clutch assembly 23 are engaged, so that the energy of the propeller 51 is transmitted to the second main shaft 12 only through the third gear train 33, thus achieving the first gear mode of the propeller 51. Furthermore, the first annular steel disc and the first clutch disc of the first clutch assembly 21 are engaged, and the second annular steel disc and the second clutch disc of the second clutch assembly 22 are engaged, so that the energy of the propeller 51 is transmitted through the second gear train 32 to the second main shaft 12, thus achieving the second gear mode of the propeller 51.

[0048] In embodiments of the present invention, the third gear train 33 includes at least one input gear and one output gear, and the input gear is drivenly connected to the output gear, such that power is transmitted from the input gear to the output gear.

[0049] In some embodiments, in the third gear train 33, the input gear and the output gear are directly engaged, or at least a connecting gear is arranged between the input gear and the output gear.

[0050] It should be noted that the specific number of gears in the third gear train 33 is determined based on requirements. Petition 870250076750, dated 08 / 28 / 2025, page 67 / 82 / 24 reais.

[0051] In some embodiments, as shown in Figure 1 and Figure 2, the gearbox additionally includes a fourth main shaft 14, and the fourth main shaft 14 is coaxially spaced from the first main shaft 11. The fourth main shaft 14 is configured to be drivenly connected to the motor (second motor 53) or propeller 51.

[0052] As shown in Figure 1 and Figure 2, the third gear train 33 additionally includes at least one intermediate gear, and the intermediate gear of the third gear train 33 is fixedly coated onto the outer part of the fourth main shaft 14.

[0053] The fourth main shaft 14 is installed on the intermediate gear of the third gear train 33, and the power supply is drivenly connected to the fourth main shaft 14, so that the power from the power supply is transmitted through the fourth main shaft 14 and the third gear train 33 to the second main shaft 12, thus improving the power performance of the hybrid power system.

[0054] For example, the power supply for the fourth main axis 14 is an electric motor (second motor 53) or a propeller 51, which is not limited to the present invention.

[0055] Figure 3 is a partial structural diagram of another gearbox according to some embodiments of the present invention. As shown in Figure 3, the gearbox additionally includes an extendable shaft 41 and a transmission cylinder 42. The transmission cylinder 42 has a closed end and an open end opposite the closed end, the closed end is coaxially connected to one end of the extendable shaft 41, and the other end of the extendable shaft 41 is coaxially connected to the fourth main shaft 14.

[0056] As shown in Figure 3, the teeth of the first Petition 870250076750, dated 08 / 28 / 2025, page 68 / 82 / 24 gear 421 are circumferentially spaced on the outer circumferential wall of transmission cylinder 42, and the teeth of the second gear 225 are circumferentially spaced on the inner surface of the second hollow shaft 224. The outer diameter of transmission cylinder 42 is smaller than the inner diameter of the second hollow shaft 224.

[0057] As shown in Figures 3 and 4, the telescopic shaft 41 is configured to control the transmission cylinder 42 to move to the first position or to the second position. In the case where the transmission cylinder 42 is in the first position, the transmission cylinder 42 is inserted into the second hollow shaft 224, and the teeth of the first gear 421 are engaged with the teeth of the second gear 225.

[0058] In embodiments of the present invention, as shown in Figure 3, when the transmission cylinder 42 is in the second position, the transmission cylinder 42 is outside the second hollow shaft 224. When the first motor 52 rotates, the energy from the first motor 52 is transmitted sequentially through the first main shaft 11 and the second gear train 32 to the second main shaft 12. When the second motor 53 rotates, the energy from the second motor 53 is transmitted sequentially through the fourth main shaft 14 and the third gear train 33 to the second main shaft 12.

[0059] In embodiments of the present invention, as shown in Figure 4, when the transmission cylinder 42 is shifted to the first position, the transmission cylinder 42 is inserted into the second hollow shaft 224, and the teeth of the first gear 421 on the outer wall of the transmission cylinder 42 engage with the teeth of the second gear 225 inside the second hollow shaft 224, circumferentially locking the transmission cylinder 42 and the second hollow shaft 224, so that the transmission cylinder 42 and the second hollow shaft 224 rotate together. When the first motor 52 rotates, in the case of the second clutch assembly 22 being Petition 870250076750, dated 08 / 28 / 2025, page 69 / 82 / 24 engaged, the energy from the first motor 52 is transmitted sequentially through the first main shaft 11, the second clutch assembly 22, the second hollow shaft 224, the fourth main shaft 14 and the third gear train 33 to the second main shaft 12. When the second motor 53 rotates, in the case of the second clutch assembly 22 not being engaged, the energy from the second motor 53 is transmitted to the second main shaft 12 through the fourth main shaft 14, the second hollow shaft 224 and the second gear train 32.

[0060] In this way, the motor's energy is transmitted to the second main shaft 12 through the second gear train 32 and the third gear train 33, so that the motor operates in a plurality of change modes.

[0061] In some embodiments, as shown in Figure 3, the gearbox additionally includes a shift lever 43 and an actuating element 44. One end of the shift lever 43 is connected to the actuating element 44, and the actuating element 44 is configured to actuate the shift lever 43 to move axially along the telescopic shaft 41.

[0062] As shown in Figure 3, a positioning slider 431 is disposed at the other end of the shift lever 43, and an annular dovetail groove 420 is disposed at the closed end. The annular dovetail groove 420 is coaxial with the central axis of the transmission cylinder 42, and the positioning slider 431 is disposed in a sliding manner in the annular dovetail groove 420.

[0063] When installing a dovetail positioning slide 431 at one end of the lever 43 and the annular dovetail groove 420 at the closed end, if the positioning slide 430 is installed in the annular dovetail groove 420, when the transmission cylinder 42 rotates, the slide of Petition 870250076750, dated 08 / 28 / 2025, page 70 / 82 / 24 positioning 431 can slide inside the annular dovetail groove 420, so that the transmission cylinder 42 transmits power to the second hollow shaft 224.

[0064] In embodiments of the present invention, the lever 43 is connected to an actuating element. For example, the actuating element 44 includes an electric telescopic rod, one end of which is connected to one end of the lever. This allows the electric telescopic rod to control the extension and retraction of the transmission cylinder, enabling the transmission cylinder 42 to switch between the first and second positions.

[0065] In some embodiments, as shown in Figure 3, the telescopic shaft 41 includes a first subshaft 411 and a second subshaft 412 that are coaxially coated, a hole is disposed in the end face of the first end of the second subshaft 412, the first end of the first subshaft 411 is inserted coaxially into the hole, and the first subshaft 411 is circumferentially locked to the second subshaft 412. The second end of the first subshaft 411 is connected to the closed end, and the second end of the second subshaft 412 is connected to the fourth main shaft 14.

[0066] In the above embodiments, the extension function of the telescopic shaft 41 is achieved by the two mounted subshafts, thus allowing the transmission cylinder to be inserted and fitted into the second hollow shaft.

[0067] For example, an inner flange is arranged in the hole opening position, and the inner flange can prevent the first subshaft from sliding out of the second subshaft hole, thus increasing the reliability of the telescopic shaft.

[0068] Figure 1 is a schematic diagram of a hybrid energy system according to some embodiments of the present invention. Petition 870250076750, dated 08 / 28 / 2025, pages 71 / 82 / 24 As shown in Figure 1, the hybrid power system includes a propeller 51, a first motor 52, and the gearbox as described above.

[0069] The output shaft of the propeller 51 is drivenly connected to the second connecting part of the first clutch assembly 21. The shaft of the first motor 52 is coaxially connected to the first main shaft 11, and the first main shaft 11 is coaxially connected to the first connecting part of the first clutch assembly 21.

[0070] As shown in Figure 1, the propeller output shaft 51 is coaxially connected to the third main shaft 13, and the third main shaft 13 is connected to the first hollow shaft 214 of the first clutch assembly 21 by means of the first gear train 31, so that the power of the propeller 51 is transmitted to the first clutch assembly 21.

[0071] In the above embodiments, the energy of the propeller 51 is transmitted to the first main shaft 11 by means of the first clutch assembly 21, so that the energy of the propeller 51 is used to drive the first motor 52 for energy generation, or the energy of the propeller 51 is transmitted to the second main shaft 12 to make the wheels turn.

[0072] If the first motor 52 needs to generate electricity, the first and second connecting parts of the first clutch assembly 21 are engaged, and the first and second connecting parts of the second clutch assembly 22 are disengaged. In this way, the power from the propeller 51 is transmitted only to the motor and is not transmitted to the second main shaft 12 to drive other components to rotate, thus reducing energy loss. If only the first motor 52 needs to operate, the first and second connecting parts of the first clutch assembly 21 are disengaged, and the first and second connecting parts of the second assembly Petition 870250076750, dated 08 / 28 / 2025, page 72 / 82 / 24 of clutch 22 are engaged, so that the engine power is transmitted only to the second main shaft 12 to drive the wheels, without being transmitted to the propeller 51, thus avoiding energy loss.

[0073] In some embodiments, as shown in Figure 1, the hybrid system additionally includes a second motor 53, and the shaft of the second motor 53 is connected coaxially to the fourth main shaft 14, so that the energy from the second motor 53 is transmitted to the second main shaft 12 via the fourth main shaft 14 and the third gear train 33 to make the wheels turn.

[0074] In this way, the second engine 53 acts as a drive motor and can generate energy to power the car and improve the energy performance of the hybrid system.

[0075] In some embodiments, as shown in Figure 1, the hybrid system additionally includes a differential, and the differential is connected to the second main axle 12.

[0076] The differential causes the wheels connected to the differential's output shaft to rotate at different speeds. When the vehicle is turning, the turning radius of the inner wheels is different from the turning radius of the outer wheels, and the outer wheels have a larger turning radius than the inner wheels. Therefore, the outer wheels need to rotate at a higher speed than the inner wheels during turns. The differential causes the two wheels to rotate at different speeds, thus achieving a speed difference between the two wheels.

[0077] In some embodiments, the hybrid power system additionally includes a power supply assembly 60, and the power supply assembly 60 includes a battery 61 and an inverter 62. The inverter 62 is connected to the battery 61, and the first motor 52 and the second motor 53 are connected to the inverter 62.

[0078] For example, power supply component 60 includes Petition 870250076750, dated 08 / 28 / 2025, page 73 / 82 / 24 two inverters 62, and inverter 62 is connected to battery 61. The first motor 52 is connected to one of the two inverters 62, and the second motor 53 is connected to the other inverter 62.

[0079] By configuring two inverters 62, battery 61 is connected to the first motor 52 via one inverter 62, and battery 61 is connected to the second motor 53 via the other inverter 62. Battery 61 is a rechargeable battery 61, and inverter 62 is arranged in the battery 61 output circuit to convert the DC power output of battery 61 into three-phase AC power to drive either the first motor 52 or the second motor 53.

[0080] Taking the hybrid system shown in Figure 1 as an example, several energy modes of the hybrid system are explained below.

[0081] If the hybrid system is in purely electric mode, the hybrid system includes the following situations.

[0082] The first mode is shown in Figure 5. The propeller 51 and the first motor 52 are not working, and the first clutch assembly 21, the second clutch assembly 22 and the third clutch assembly 23 are all disengaged, and the vehicle is driven by the second motor 53. The second motor 53 converts electrical energy into mechanical energy, which is transmitted to the fourth main shaft 14, the third gear train 33 and the second main shaft 12, and then transmitted to the wheels via the differential, so that the second motor 53 drives the vehicle.

[0083] The second mode is shown in Figure 6, the propeller 51 does not work, the first clutch assembly 21 and the third clutch assembly 23 are disengaged and the second clutch assembly 22 is engaged. The vehicle is driven by the first motor 52 and the second motor 53, thus achieving a dual-motor drive in the vehicle.

[0084] If the hybrid system is in series hybrid drive mode, as shown in Figure 7, the propeller 51, the first motor 52 and the second motor 53 operate in coordination to drive the Petition 870250076750, dated 08 / 28 / 2025, page 74 / 82 / 24 vehicle as a whole. In this mode, the first clutch assembly 21 is engaged, and the second clutch assembly 22 and the third clutch assembly 23 are disengaged. The propeller 51 operates in high-efficiency mode to drive the first motor 52 to generate electricity, which is supplied to the second motor 53 to power the vehicle. Excess electricity is stored in the power supply assembly 60 and, in case power generation is insufficient, the power supply assembly 60 supplements the power.

[0085] If the hybrid power system is in parallel hybrid drive mode, as shown in Figure 8, the vehicle operates in first-gear parallel hybrid drive mode. Propulsion unit 51, first motor 52, and second motor 53 operate to power the vehicle, which can generate more power and improve overall vehicle performance. In this mode, the first clutch assembly 21 and the second clutch assembly 22 are engaged, and the third clutch assembly 23 is disengaged. Propulsion unit 51 and the first motor 52 drive the second axle 12 via the first main shaft 11, and the second motor 53 drives the second axle 12 via the fourth main shaft 14.

[0086] If the hybrid system is in direct drive mode of the motor 51, as shown in Figure 9, the vehicle operates in first gear direct drive mode of the motor. Different combinations of the three clutch assemblies allow for different modes of operation. In one mode, the first clutch assembly 21 and the second clutch assembly 22 are engaged, and the third clutch assembly 23 is disengaged. Part of the motor's energy drives the first motor 52 to generate electricity, and the other part of the energy is transmitted through the second gear train 32 to the second main shaft 12, which causes the wheels to rotate.

[0087] In the event that the hybrid system is in recovery mode Petition 870250076750, dated 08 / 28 / 2025, page 75 / 82 / 24 energy, as shown in Figure 10, the vehicle is in neutral or braking, and the hybrid system provides reverse torque to the vehicle, converting part of the vehicle's kinetic energy into electrical energy through the first motor 52 or the second motor 53, which is stored in the power supply component 60 for future use.

[0088] The present invention provides a vehicle comprising a body and the hybrid power system described above, and the hybrid power system is disposed within the vehicle body.

[0089] The above description is only an optional embodiment of the present invention and is not intended to limit the scope of the present invention. Any modifications, equivalent substitutions, improvements or the like made within the principles of the present invention will be included in the scope of protection of the present invention. Petition 870250076750, dated 08 / 28 / 2025, pp. 76 / 82

Claims

1 / 5 CLAIMS 1. Gearbox, characterized in that it comprises: a first main shaft, a second main shaft, a first clutch assembly, a second clutch assembly, a first gear train and a second gear train; wherein the first main shaft is parallel to the second main shaft, the first main shaft is configured to be drivenly connected to a motor, and the second main shaft is configured to be drivenly connected to the wheels; one end of the first gear train is drivenly connected to a motor, and the other end of the first gear train is drivenly connected to the first main shaft by means of the first clutch assembly;One end of the second gear train is actuatedly connected to the first main shaft via the second clutch assembly, and the other end of the second gear train is actuatedly connected to the second main shaft.

2. Gearbox according to claim 1, characterized in that the first clutch assembly comprises a first annular steel disc, a first clutch disc, a first clutch collar and a first hollow shaft, wherein an outer circumferential wall of the first annular steel disc is connected to an inner wall of the first clutch collar, the first clutch disc is movably axially coated on the first hollow shaft, the first clutch disc is circumferentially locked to the first hollow shaft, the first hollow shaft is movably coated on the first main shaft, the first clutch collar is coaxially connected to the first main shaft, an input gear of the first gear train of Petition 870250076750, dated 08 / 28 / 2025,pg. 77 / 82 2 / 5 gears are configured to be connected coaxially to an output shaft of the propeller and an output gear of the first gear train is fixedly fitted onto the first hollow shaft; and the second clutch assembly comprises a second annular steel disc, a second clutch disc, a second clutch collar and a second hollow shaft, wherein an outer circumferential wall of the second annular steel disc is connected to an inner wall of the second clutch collar, the second clutch disc is movably fitted axially onto the second hollow shaft, the second clutch disc is circumferentially fitted to the second hollow shaft, the second hollow shaft is movably fitted onto the first main shaft, the second clutch collar is coaxially connected to the first main shaft,An input gear of the second gear train is fixedly mounted on the second hollow shaft, and an output gear of the second gear train is fixedly mounted on the second main shaft.

3. Gearbox according to claim 2, characterized in that it further comprises a third main shaft, a third clutch assembly and a third gear train, wherein the third main shaft is parallel to the first main shaft; wherein the third clutch assembly comprises a third annular steel disc, a third clutch disc, a third clutch collar and a third hollow shaft, wherein an outer circumferential wall of the third annular steel disc is connected to an inner wall of the third clutch collar, the third clutch disc is movably axially coated on the third hollow shaft, the third clutch disc is circumferentially locked to the third hollow shaft, the third hollow shaft is movably coated on the third Petition 870250076750, dated 08 / 28 / 2025, p.78 / 82 3 / 5 main shaft, the third clutch collar is connected coaxially to the third main shaft, an input gear of the third gear train is fixedly coated on the hollow third shaft and an output gear of the third gear train is fixedly coated on the second main shaft.

4. Gearbox according to claim 3, characterized in that it further comprises: a fourth main shaft, wherein the fourth main shaft and the first main shaft are coaxially spaced, and the fourth main shaft is configured to be drivenly connected to a motor or propeller; wherein the third gear train further comprises at least one intermediate gear, wherein the intermediate gear of the third gear train is fixedly mounted on the fourth main shaft. 5.Gearbox according to claim 4, characterized in that it further comprises: a telescopic shaft and a transmission cylinder, wherein the transmission cylinder has a closed end and an open end opposite the closed end, wherein the closed end is coaxially connected to one end of the telescopic shaft, and the other end of the telescopic shaft is coaxially connected to the fourth main shaft; wherein the teeth of the first gear are circumferentially spaced on an outer circumferential wall of the transmission cylinder, the teeth of the second gear are circumferentially spaced on an inner wall of the second hollow shaft, and an outer diameter of the transmission cylinder is smaller than the inner diameter of the second hollow shaft; and the telescopic shaft is configured to control the transmission cylinder to move to a first or second position. Petition 870250076750, dated 08 / 28 / 2025, p.79 / 82 4 / 5 position, the transmission cylinder is inserted into the second hollow shaft and the teeth of the first gear are engaged with the teeth of the second gear in a case where the transmission cylinder is in the first position, and the transmission cylinder is outside the second hollow shaft in a case where the transmission cylinder is in the second position.

6. Gearbox according to claim 5, characterized in that it further comprises: a shift lever and an actuating element, wherein one end of the shift lever is connected to the actuating element, and the actuating element is configured to actuate the shift lever to move along an axial direction of the telescopic shaft; wherein a positioning slider is disposed at the other end of the shift lever, an annular dovetail groove is disposed at the closed end, the annular dovetail groove is coaxial with a central axis of the transmission cylinder, and the positioning slider is disposed in a sliding manner in the annular dovetail groove.

7. Gearbox according to claim 5, characterized in that the telescopic shaft comprises a first subshaft and a second subshaft that are coaxially coated, wherein a hole is defined in an end surface of a first end of the second subshaft, a first end of the first subshaft is inserted coaxially into the hole, the first subshaft is circumferentially locked to the second subshaft, a second end of the first subshaft is connected to the closed end and a second end of the second subshaft is connected to the fourth main shaft.

8. Hybrid power system, characterized in that it comprises: a propeller, a first motor and the gearbox as defined in any of claims 1 to 7; Petition 870250076750, dated 08 / 28 / 2025, page 80 / 82 5 / 5 wherein an output shaft of the propeller is connected in a driven manner to a second connecting part of the first clutch assembly, a shaft of the first motor is connected coaxially to the first main shaft, and the first main shaft is connected coaxially to a first connecting part of the first clutch assembly.

9. Hybrid power system according to claim 8, characterized in that it further comprises: a power supply assembly, wherein the power supply assembly comprises a battery and an inverter, wherein the inverter is connected to the battery, and the first motor is connected to the inverter.

10. Vehicle, characterized in that it comprises a vehicle body and the hybrid power system as defined in claim 8 or 9, wherein the hybrid power system is disposed in the vehicle body. Petition 870250076750, dated 08 / 28 / 2025, pp. 81 / 82

Images