Generator assembly and vehicle

Abstract

The generator assembly comprises a shell, an input shaft, a power generation mechanism and a switching mechanism, the input shaft is rotatably arranged on the shell, the power generation mechanism is arranged in the shell and comprises a first power generation unit and a second power generation unit, the first power generation unit comprises a first stator and a first rotor, and the second power generation unit comprises a second stator and a second rotor. The second power generation unit comprises a second stator and a second rotor. The switching mechanism is arranged in the shell and used for switching transmission connection or separation between the input shaft and the first rotor and the second rotor. According to the generator assembly, the output shaft is switched to be in transmission connection with or separated from the first rotor and the second rotor through the switching mechanism, so that the generator assembly can flexibly select the first power generation unit and / or the second power generation unit to generate power according to the working condition of the engine, and the efficient interval of the generator assembly can be well widened; therefore, the overlap ratio of the high-efficiency intervals of the generator assembly and the engine can be increased, and the power generation efficiency of the generator assembly is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of generators, and in particular to a generator assembly and a vehicle. Background Art

[0002] The range extender assembly currently used in hybrid vehicles has no speed ratio or a fixed speed ratio between the engine and the generator for power generation. The high-efficiency zone overlap deviation of the range extender engine and the generator with no speed ratio or a single fixed speed ratio is large, resulting in relatively low overall power generation efficiency. Therefore, there is room for improvement. Summary of the invention

[0003] A first aspect of the present invention provides a generator assembly, which has the advantages of a wide high-efficiency range and high power generation efficiency.

[0004] According to the first aspect of the present invention, the generator assembly includes: a housing; an input shaft rotatably disposed in the housing; a power generation mechanism disposed in the housing and including a first power generation unit and a second power generation unit, the first power generation unit including a first stator and a first rotor, the second power generation unit including a second stator and a second rotor; a switching mechanism disposed in the housing and used to switch the transmission connection or separation between the input shaft and the first rotor and the second rotor.

[0005] According to the generator assembly of the first aspect of the present invention, a switching mechanism switches the transmission connection or separation between the output shaft and the first rotor and the second rotor, so that the generator assembly can flexibly select the first power generation unit and / or the second power generation unit for power generation according to the operating conditions of the engine, thereby better widening the high-efficiency range of the generator assembly, and further increasing the overlap of the high-efficiency ranges of the generator assembly and the engine, so as to improve the power generation efficiency of the generator assembly.

[0006] According to some embodiments of the present invention, the switching mechanism includes: a transmission output member, which is provided on the input shaft and rotates synchronously with the input shaft; a first transmission member, which is provided on the first rotor and rotates synchronously with the first rotor; a second transmission member, which is provided on the second rotor and rotates synchronously with the second rotor; a first switching unit and a second switching unit, which are respectively used to control the transmission connection or separation of the first transmission member and the second transmission member with the transmission output member.

[0007] According to some embodiments of the present invention, the first switching unit and the second switching unit are respectively used to drive the first transmission member and the second transmission member to move axially along the input shaft to control the first transmission member and the second transmission member to be connected or separated from the transmission output member.

[0008] According to some embodiments of the present invention, in the axial direction of the input shaft, the first transmission member is movable relative to the first rotor to be drivingly connected to or separated from the transmission output member, and the second transmission member is movable relative to the second rotor to be drivingly connected to or separated from the transmission output member.

[0009] According to some embodiments of the present invention, the first switching unit includes a first elastic return member and a first baffle, the first baffle and the first transmission member define a first hydraulic chamber, the first elastic return member and the first hydraulic chamber are located on opposite sides of the first transmission member, and the second switching unit includes a second elastic return member and a second baffle, the second baffle and the second transmission member define a second hydraulic chamber, and the second elastic return member and the second hydraulic chamber are located on opposite sides of the second transmission member.

[0010] According to some embodiments of the present invention, the generator assembly also includes a fixed shaft, the first stator is fixed to the fixed shaft, and in the axial direction of the input shaft, the first switching unit and the second switching unit are respectively located on opposite sides of the first stator, and a first oil circuit and a second oil circuit are formed on the fixed shaft, the first oil circuit is connected to the first hydraulic chamber, and the second oil circuit is connected to the second hydraulic chamber.

[0011] According to some embodiments of the present invention, the first transmission member and the second transmission member are located on the same side of the transmission output member in the axial direction of the input shaft, and the matching positions of the first transmission member and the second transmission member with the transmission output member are arranged along the radial direction of the input shaft.

[0012] According to some embodiments of the present invention, the first transmission member includes a first transmission part and a first matching part, the second transmission member includes a second transmission part and a second matching part, the first transmission part and the second transmission part are used for transmission connection with the transmission output member, the first matching part and the second matching part are both rotatably arranged on the fixed shaft and are respectively located on opposite sides of the first stator, the first transmission part is located on the side of the first stator facing the transmission output member and is connected to the outer peripheral side of the first matching part, the second transmission part is located on the outer peripheral side of the first transmission member and the first power generation unit and is connected to the outer peripheral side of the second matching part, the first matching part and the first baffle define the first hydraulic chamber, and the second matching part and the second baffle define the second hydraulic chamber.

[0013] According to some embodiments of the present invention, in the axial direction of the input shaft, the first elastic reset member is located on a side of the first matching portion away from the first power generation unit, and the second elastic reset member is located on a side of the second matching portion away from the second power generation unit.

[0014] According to some embodiments of the present invention, the transmission output member, the first transmission member and the second transmission member are all friction disks.

[0015] According to some embodiments of the present invention, the first power generation unit and the second power generation unit are arranged along the radial direction of the input shaft, and the second power generation unit is located on the outer peripheral side of the first power generation unit.

[0016] According to some embodiments of the present invention, the first stator and the first rotor are arranged along the radial direction of the input shaft, and the second stator and the second rotor are arranged along the axial direction of the input shaft.

[0017] According to some embodiments of the present invention, in the axial direction of the input shaft, the second stator has two disposed on opposite sides of the second rotor.

[0018] According to some embodiments of the present invention, the first power generation unit and the second power generation unit have different high efficiency ranges.

[0019] A second aspect of the present invention provides a vehicle.

[0020] A vehicle according to an embodiment of the second aspect of the present invention includes: the above-mentioned generator assembly.

[0021] According to the vehicle of the second aspect of the embodiment of the present invention, a switching mechanism switches the transmission connection or separation between the output shaft and the first rotor and the second rotor, so that the generator assembly can flexibly select the first power generation unit and / or the second power generation unit for power generation according to the operating conditions of the engine, thereby better widening the high-efficiency range of the generator assembly, and then increasing the overlap of the high-efficiency ranges of the generator assembly and the engine, so as to improve the power generation efficiency of the generator assembly.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is an exploded view of a generator assembly according to an embodiment of the present invention;

[0024] Figure 2 is a front view of a generator assembly according to an embodiment of the present invention;

[0025] Figure 3 yes Figure 2 Sectional view along AA;

[0026] Figure 4 is a side view of a generator assembly according to an embodiment of the present invention;

[0027] Figure 5 yes Figure 4 Section along BB;

[0028] Figure 6 yes Figure 5 Enlarged view of the middle C area;

[0029] Figure 7 yes Figure 5 Enlarged view of area D in the middle;

[0030] Figure 8 is a partial exploded view of a generator assembly according to an embodiment of the present invention.

[0031] Reference numerals:

[0032] 100. Generator assembly;

[0033] 1. housing; 11. first housing; 12. second housing; 2. input shaft;

[0034] 3. First power generation unit; 31. First stator; 311. First stator core; 312. First stator winding; 32. First rotor; 321. First rotor core; 322. First magnetic steel; 323. First mounting groove; 324. Slide groove;

[0035] 4. Second power generation unit; 41. Second stator; 411. Second stator core; 412. Second stator winding; 42. Second rotor; 421. Second rotor core; 422. Second magnetic steel; 423. Second mounting slot;

[0036] 51. Transmission output member; 52. First transmission member; 521. First transmission part; 522. First matching part; 523. Sliding block; 53. Second transmission member; 531. Second transmission part; 532. Second matching part; 54. First switching unit; 541. First elastic return member; 542. First baffle; 543. First hydraulic chamber; 55. Second switching unit; 551. Second elastic return member; 552. Second baffle; 553. Second hydraulic chamber;

[0037] 6. Fixed shaft; 61. First oil circuit; 62. Second oil circuit; 63. Fixed groove; 10a. First bearing; 10b. Second bearing; 10c. Third bearing; 10d. Fourth bearing. DETAILED DESCRIPTION

[0038] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0039] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific processes and examples of materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0040] The following describes a generator assembly 100 according to an embodiment of the first aspect of the present invention with reference to the accompanying drawings.

[0041] like Figure 1-Figure 5 As shown, the generator assembly 100 according to the first aspect of the embodiment of the present invention comprises: a housing 1, an input shaft 2, a power generation mechanism and a switching mechanism. Specifically, the input shaft 2 is rotatably arranged in the housing 1, wherein the input shaft 2 is suitable for driving connection with the output shaft of the engine, that is, when the output shaft of the engine rotates, the input shaft 2 can be driven to rotate, thereby inputting mechanical energy into the generator assembly 100. The power generation mechanism is arranged in the housing 1 and comprises a first power generation unit 3 and a second power generation unit 4, the first power generation unit 3 comprises a first stator 31 and a first rotor 32, the second power generation unit 4 comprises a second stator 41 and a second rotor 42, and the switching mechanism is arranged in the housing 1 and is used to switch the driving connection or separation between the input shaft 2 and the first rotor 32 and the second rotor 42.

[0042] That is to say, the switching mechanism can be switched to a state in which the output shaft is transmission-connected with the first rotor 32 and separated from the second rotor 42, so that the rotation of the output shaft can drive the first rotor 32 to rotate relative to the first stator 31 to generate an induced potential, that is, at this time, electricity is generated by the first power generation unit 3; the switching mechanism can also be switched to a state in which the output shaft is transmission-connected with the second rotor 42 and separated from the first rotor 32, so that the rotation of the output shaft can drive the second rotor 42 to rotate relative to the second stator 41 to generate an induced potential, that is, at this time, electricity is generated by the second power generation unit 4; the switching mechanism can be switched to a state in which the output shaft is transmission-connected with the first rotor 32 and the second rotor 42 at the same time, so that the rotation of the output shaft can drive the first rotor 32 to rotate relative to the first stator 31 to generate an induced potential, and at the same time can drive the second rotor 42 to rotate relative to the second stator 41 to generate an induced potential, that is, at this time, electricity is generated by the first power generation unit 3 and the second power generation unit 4 at the same time.

[0043] Among them, it can be understood that there are many different operating conditions during the operation of the engine, and the speed and torque under different operating conditions are different. Therefore, by switching the transmission connection or separation between the output shaft and the first rotor 32 and the second rotor 42 through the switching mechanism, the generator assembly 100 can flexibly select the first power generation unit 3 and / or the second power generation unit 4 to generate electricity according to the operating condition of the engine. For example, the low-power power generation interval only generates electricity through the first power generation unit 3, the medium-power power generation area only generates electricity through the second power generation unit 4, and the high-power power generation interval generates electricity through the first power generation unit 3 and the second power generation unit 4 at the same time, thereby better widening the high-efficiency range of the generator assembly 100, and then increasing the overlap of the high-efficiency range of the generator assembly 100 and the engine, so as to improve the power generation efficiency of the generator assembly 100.

[0044] According to the generator assembly 100 of the first aspect of the embodiment of the present invention, the transmission connection or separation between the output shaft and the first rotor 32 and the second rotor 42 is switched by a switching mechanism, so that the generator assembly 100 can flexibly select the first power generation unit 3 and / or the second power generation unit 4 for power generation according to the working condition of the engine, thereby better widening the high-efficiency range of the generator assembly 100, and further increasing the overlap of the high-efficiency range of the generator assembly 100 and the engine, so as to improve the power generation efficiency of the generator assembly 100.

[0045] In some embodiments, Figure 7 and Figure 8 As shown, the first stator 31 includes a first stator core 311 and a first stator winding 312 wound around the first stator core 311, the first rotor 32 includes a first rotor core 321 and a first magnetic steel 322, the first rotor core 321 is formed with a plurality of first mounting grooves 323 arranged along its circumference, and each first mounting groove 323 is correspondingly provided with a first magnetic steel 322. The second stator 41 includes a second stator core 411 and a second stator winding 412 wound around the second stator core 411, the second rotor 42 includes a second rotor core 421 and a second magnetic steel 422, the second rotor core 421 is formed with a plurality of second mounting grooves 423 arranged along its circumference, and each second mounting groove 423 is correspondingly provided with a second magnetic steel 422. The housing 1 includes a first shell 11 and a second shell 12 that are detachably connected, and the first shell 11 and the second shell 12 jointly define a housing cavity for accommodating a power generation mechanism and a switching mechanism.

[0046] According to some embodiments of the present invention, Figure 3 and Figure 5As shown, the switching mechanism includes: a transmission output member 51, a first transmission member 52, a second transmission member 53, a first switching unit 54 and a second switching unit 55. The transmission output member 51 is arranged on the input shaft 2 and rotates synchronously with the input shaft 2. The first transmission member 52 is arranged on the first rotor 32 and rotates synchronously with the first rotor 32. The second transmission member 53 is arranged on the second rotor 42 and rotates synchronously with the second rotor 42. The first switching unit 54 and the second switching unit 55 are respectively used to control the transmission connection or separation of the first transmission member 52 and the second transmission member 53 with the transmission output member 51. That is to say, the first switching unit 54 is used to control the transmission connection or separation between the first transmission member 52 and the transmission output member 51, such as the first switching unit 54 can control the transmission connection between the first transmission member 52 and the transmission output member 51, so that the input shaft 2 can drive the first rotor 32 to rotate through the first transmission member 52 and the transmission output member 51, so as to control the first power generation unit 3 to generate electricity; the second switching unit 55 is used to control the transmission connection or separation between the second transmission member 53 and the transmission output member 51, such as the second switching unit 55 can control the transmission connection between the second transmission member 53 and the transmission output member 51, so that the input shaft 2 can drive the second rotor 42 to rotate through the transmission output member 51 and the second transmission member 53, so as to control the second power generation unit 4 to generate electricity.

[0047] Therefore, by setting independent first transmission members 52 and second transmission members 53 for the first power generation unit 3 and the second power generation unit 4, and setting corresponding first switching units 54 and second switching units 55 for switching between the first transmission member 52 and the second transmission member 53, the stability of the first transmission member 52 and the second transmission member 53 in switching between the two states of being transmission connected to the transmission output member 51 or being separated from the transmission output member 51 can be improved, and mutual interference between the first transmission member 52 and the second transmission member 53 during the state switching process can be avoided, so as to improve the reliability of the switching mechanism.

[0048] According to some embodiments of the present invention, the first switching unit 54 and the second switching unit 55 are respectively used to drive the first transmission member 52 and the second transmission member 53 to move along the axial direction of the input shaft 2, so as to control the first transmission member 52 and the second transmission member 53 to be connected or separated from the transmission output member 51. That is, the first switching unit 54 is used to drive the first transmission member 52 to move along the axial direction of the input shaft 2 to control the first transmission member 52 to be connected or separated from the transmission output member 51, and the second switching unit 55 is used to drive the second transmission member 53 to move along the axial direction of the input shaft 2 to control the second transmission member 53 to be connected or separated from the transmission output member 51. Among them, since the first transmission member 52 and the second transmission member 53 are both arranged along the axial direction of the input shaft 2 with the transmission output member 51. Therefore, by controlling the first transmission member 52 and the second transmission member 53 to be connected or separated from the transmission output member 51 along the axial direction of the output shaft, the difficulty of connecting or separating the first transmission member 52 and the second transmission member 53 from the transmission output member 51 can be reduced.

[0049] According to some embodiments of the present invention, in the axial direction of the input shaft 2, the first transmission member 52 is movable relative to the first rotor 32 to be transmission-connected or separated from the transmission output member 51, and the second transmission member 53 is movable relative to the second rotor 42 to be transmission-connected or separated from the transmission output member 51. For example, the first rotor 32 and the first transmission member 52 are slidably connected along the axial direction of the input shaft 2, and the second rotor 42 and the second transmission member 53 are slidably connected along the axial direction of the input shaft 2. Therefore, while ensuring that the first transmission member 52 and the second transmission member 53 can be transmission-connected or separated from the transmission output member 51 along the movement of the input shaft 2, the positions of the first rotor 32 and the second rotor 42 in the axial direction of the input shaft 2 can be kept unchanged, thereby preventing the position change of the first rotor 32 or the second rotor 42 from affecting the layout of the first power generation unit 3 and the second power generation unit 4, so as to ensure the reliability of the structure of the first power generation unit 3 and the second power generation unit 4.

[0050] In some embodiments, the first transmission member 52 and the first rotor 32 are arranged along the axial direction of the input shaft 2. In the axial direction of the input shaft 2, the first transmission member 52 is located on the side of the first rotor 32 facing the transmission output member 51. A slide groove 324 is formed on one of the first transmission member 52 and the first rotor 32. A slider 523 is provided on the other of the first transmission member 52 and the first rotor 32. The slider 523 is slidably arranged in the slide groove 324 along the axial direction of the input shaft 2, so that the first transmission member 52 and the first rotor 32 can be slidably connected along the axial direction of the input shaft 2 through the cooperation of the slide groove 324 and the slider 523. Specifically, the slider 523 is arranged on the side of the first transmission part 521 facing the first rotor 32, and the slide groove 324 is formed on the axial end surface of the first rotor core 321 facing the first transmission member 52. The second rotor 42 can be mounted on the second transmission member 53 via a spline sleeve, so that the second rotor 42 can rotate synchronously with the second transmission member 53 while ensuring that the second transmission member 53 can slide relative to the second rotor 42 along the axial direction of the input shaft 2.

[0051] According to some embodiments of the present invention, Figure 6 and Figure 7 As shown, the first switching unit 54 includes a first elastic return member 541 and a first baffle 542, the first baffle 542 and the first transmission member 52 define a first hydraulic chamber 543, the first elastic return member 541 and the first hydraulic chamber 543 are located on opposite sides of the first transmission member 52, the second switching unit 55 includes a second elastic return member 551 and a second baffle 552, the second baffle 552 and the second transmission member 53 define a second hydraulic chamber 553, the second elastic return member 551 and the second hydraulic chamber 553 are located on opposite sides of the second transmission member 53.

[0052] That is, the first transmission member 52 can be pushed to move by squeezing the first elastic return member 541 by injecting hydraulic oil into the first hydraulic chamber 543, and the first elastic return member 541 can be pushed to move toward the direction close to the first baffle 542 by pumping out the hydraulic oil in the first hydraulic chamber 543, that is, the first transmission member 52 is driven to move in the axial direction of the input shaft 2 by the cooperation between the first hydraulic chamber 543 and the first elastic return member 541, so as to control the transmission connection or separation between the first transmission member 52 and the transmission output member 51. The second transmission member 53 can be pushed to move by squeezing the second elastic return member 551 by injecting hydraulic oil into the second hydraulic chamber 553, and the second elastic return member 551 can be pushed to move toward the direction close to the second baffle 552 by pumping out the hydraulic oil in the second hydraulic chamber 553, that is, the second transmission member 53 is driven to move in the axial direction of the input shaft 2 by the cooperation between the second hydraulic chamber 553 and the second elastic return member 551, so as to control the transmission connection or separation between the second transmission member 53 and the transmission output member 51. Therefore, the structures of the first switching unit 54 and the second switching unit 55 can be simplified, and the installation space occupied by the first switching unit 54 and the second switching unit 55 can be reduced, which is conducive to reducing the overall size of the generator assembly 100. In addition, the first transmission member 52 and the second transmission member 53 are driven by hydraulic pressure to move, which has higher stability.

[0053] Of course, in addition to hydraulic drive, in some embodiments, the first transmission member 52 and the second transmission member 53 can also be driven to move by air pressure or other means to achieve stable control of the connection or separation of the first transmission member 52 and the second transmission member 53 with the transmission output member 51.

[0054] According to some embodiments of the present invention, the generator assembly 100 further includes a fixed shaft 6, the first stator 31 is fixedly arranged on the fixed shaft 6, and in the axial direction of the input shaft 2, the first switching unit 54 and the second switching unit 55 are respectively located on opposite sides of the first stator 31, and a first oil circuit 61 and a second oil circuit 62 are formed on the fixed shaft 6, the first oil circuit 61 is communicated with the first hydraulic chamber 543, and the second oil circuit 62 is communicated with the second hydraulic chamber 553. Therefore, by arranging the first switching unit 54 and the second switching unit 55 on opposite sides of the first stator 31, while ensuring that the first hydraulic chamber 543 and the second hydraulic chamber 553 can be respectively communicated with the first oil circuit 61 and the second oil circuit 62 on the fixed shaft 6, the layout of the first switching unit 54 and the second switching unit 55 can make full use of the space on opposite sides of the first stator 31, so as to prevent the risk of mutual interference between the first switching unit 54 and the second switching unit 55 during the operation, and improve the reliability of the switching mechanism.

[0055] According to some embodiments of the present invention, the first transmission member 52 and the second transmission member 53 are located on the same side of the transmission output member 51 in the axial direction of the input shaft 2, and the matching positions of the first transmission member 52 and the second transmission member 53 and the transmission output member 51 are arranged along the radial direction of the input shaft 2. The matching positions of the first transmission member 52 and the second transmission member 53 and the transmission output member 51 here refer to the positions where the first transmission member 52 and the second transmission member 53 are connected to the transmission output member 51 when the first transmission member 52 and the second transmission member 53 are transmission-connected with the transmission output member 51. In other words, the transmission connection position of the first transmission member 52 and the transmission output member 51 and the transmission connection position of the second transmission member 53 and the transmission output member 51 are arranged along the radial direction of the input shaft 2. Therefore, the first transmission member 52 and the second transmission member 53 can make full use of the space of the transmission output member 51 on one side of the axial direction of the input shaft 2, and the structure is compact, so that the space occupied by the switching mechanism in the axial direction of the input shaft 2 can be well reduced to control the axial size of the generator assembly 100.

[0056] According to some embodiments of the present invention, the first transmission member 52 includes a first transmission part 521 and a first matching part 522, and the second transmission member 53 includes a second transmission part 531 and a second matching part 532. The first transmission part 521 and the second transmission part 531 are used for transmission connection with the transmission output member 51. The first matching part 522 and the second matching part 532 are both rotatably arranged on the fixed shaft 6 and are respectively located on opposite sides of the first stator 31. The first transmission part 521 is located on the side of the first stator 31 facing the transmission output member 51 and is connected to the outer peripheral side of the first matching part 522. The second transmission part 531 is located on the outer peripheral side of the first transmission member 52 and the first power generation unit 3 and is connected to the outer peripheral side of the second matching part 532. The first matching part 522 and the first baffle 542 define a first hydraulic chamber 543, and the second matching part 532 and the second baffle 552 define a second hydraulic chamber 553. Therefore, by providing the second transmission part 531 , while ensuring that the first transmission member 52 can cooperate with the transmission output member 51 , it is convenient to arrange the second switching unit 55 on the side of the first stator 31 away from the transmission output member 51 to optimize the layout of the switching mechanism.

[0057] In a specific example, the first baffle 542 and the second baffle 552 are both fixed on the fixed shaft 6 by interference fit, and seals are provided between the first baffle 542 and the first transmission member 52, between the first transmission member 52 and the fixed shaft 6, between the second baffle 552 and the second transmission member 53, and between the second transmission member 53 and the fixed shaft 6 to ensure the sealing of the first hydraulic chamber 543 and the second hydraulic chamber 553.

[0058] According to some embodiments of the present invention, in the axial direction of the input shaft 2, the first elastic reset member 541 is located on the side of the first matching portion 522 away from the first power generation unit 3, and the second elastic reset member 551 is located on the side of the second matching portion 532 away from the second power generation unit 4. Therefore, the first transmission member 52 can be prevented from blocking the first elastic reset member 541, and the second transmission member 53 can be prevented from blocking the second elastic reset key, thereby reducing the difficulty of installing the first elastic reset member 541 and the second elastic reset member 551, so as to improve the assembly efficiency of the generator assembly 100.

[0059] According to some embodiments of the present invention, the transmission output member 51, the first transmission member 52 and the second transmission member 53 are all friction discs. That is to say, the transmission output member 51 and the first transmission member 52 and the second transmission member 53 are transmitted through friction. As a result, the connection structure between the transmission output member 51 and the first transmission member 52 and the second transmission member 53 can be simplified. At the same time, the friction transmission has high stability, low transmission loss and small space occupation. At the same time, NVH problems such as gear whistling, setbacks, knocking, and abnormal noise can be avoided to improve the reliability of the switching mechanism.

[0060] According to some embodiments of the present invention, the first power generation unit 3 and the second power generation unit 4 are arranged along the radial direction of the input shaft 2. Therefore, the radial space of the generator assembly 100 can be fully utilized, so that the axial size of the generator assembly 100 can be well controlled. In addition, the arrangement of the first transmission member 52 and the second transmission member 53 is facilitated to reduce the difficulty of matching the first transmission member 52 with the first rotor 32 and the transmission output member 51, and the difficulty of matching the second transmission member 53 with the second rotor 42 and the transmission output member 51.

[0061] In a specific example, the second power generation unit 4 is located on the outer peripheral side of the first power generation unit 3, the second transmission part 531 of the second transmission member 53 is located on the outer peripheral side of the first power generation unit 3, and the second rotor 42 is sleeved on the second transmission part 531. The first transmission member 52 and the first power generation unit 3 are arranged along the axial direction of the input shaft 2 and are both located on the inner peripheral side of the second transmission part 531, so as to facilitate the cooperation between the first transmission member 52 and the second transmission member 53 and the transmission output member 51.

[0062] According to some embodiments of the present invention, the first stator 31 and the first rotor 32 are arranged along the radial direction of the input shaft 2, and the second stator 41 and the second rotor 42 are arranged along the axial direction of the input shaft 2. It can be understood that in order to control the axial dimension of the generator assembly 100, that is, on the basis of keeping the dimension of the space where the second power generation unit 4 is arranged in the axial direction of the input shaft 2 unchanged, the second stator 41 and the second rotor 42 are arranged along the axial direction of the input shaft 2. The layout can have more second stator windings 412, thereby improving the power generation efficiency of the second power generation unit 4.

[0063] According to some embodiments of the present invention, in the axial direction of the input shaft 2, the second stator 41 has two disposed on opposite sides of the second rotor 42. Thus, distributing the two second stators 41 on opposite sides of the second rotor 42 can improve the heat dissipation efficiency of the two second stators 41 and reduce the magnetic force requirements of the second rotor 42.

[0064] In a specific example, the fixed shaft 6 is interference fit in the housing 1 and is coaxially arranged with the input shaft 2. The fixed shaft 6 is formed with a fixing groove 63 open toward the input shaft 2. The end of the input shaft 2 inserted into the housing 1 is arranged in the fixing groove 63 through a first bearing 10a. The end of the first rotor 32 close to the input shaft 2 is fixed to the outer peripheral surface of the fixed shaft 6 through a second bearing 10b, and the end of the first rotor 32 away from the input shaft 2 is fixed to the second transmission member 53 through a third bearing 10c. Specifically, the third bearing 10c is installed on the side of the second transmission member 53 that is opposite to the first transmission member 52 along the axial direction of the input shaft 2, so that the fixation of the first rotor 32 can make full use of the space on the second transmission member 53 to reduce the space occupied by the first rotor 32 in the axial direction. In addition, the side of the second transmission part 531 away from the input shaft 2 is fixed to the outer peripheral surface of the fixed shaft 6 through a fourth bearing 10d.

[0065] According to some embodiments of the present invention, the high efficiency intervals of the first power generation unit 3 and the second power generation unit 4 are different. That is, the speed interval of the first power generation unit 3 under the high efficiency power generation condition is different from the speed interval of the second power generation unit 4 under the high efficiency power generation condition. Therefore, through the combination of the first power generation unit 3 and the second power generation unit 4, the generator assembly 100 can have three high efficiency intervals, specifically, the first high efficiency interval is when only the first power generation unit 3 generates electricity, the second high efficiency interval is when only the second power generation unit 4 generates electricity, and the third high efficiency interval is when the first power generation unit 3 and the second power generation unit 4 generate electricity at the same time, so that the high efficiency interval of the generator assembly 100 can be better widened to improve the power generation efficiency of the generator assembly 100.

[0066] Of course, it should be noted that in other embodiments, the high-efficiency ranges of the first power generation unit 3 and the second power generation unit 4 can be the same, and the high-efficiency areas of the first power generation unit 3 and the second power generation unit 4 can be flexibly set according to needs, and no specific restrictions are made here.

[0067] A vehicle according to an embodiment of a second aspect of the present invention will be described below with reference to the accompanying drawings.

[0068] A vehicle according to an embodiment of the second aspect of the present invention includes: a generator assembly 100 .

[0069] According to the vehicle of the second aspect of the embodiment of the present invention, the switching mechanism switches the transmission connection or separation between the output shaft and the first rotor 32 and the second rotor 42, so that the generator assembly 100 can flexibly select the first power generation unit 3 and / or the second power generation unit 4 to generate electricity according to the operating conditions of the engine, thereby better widening the high-efficiency range of the generator assembly 100, and further increasing the overlap of the high-efficiency range of the generator assembly 100 and the engine, so as to improve the power generation efficiency of the generator assembly 100.

[0070] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0071] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0072] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A generator assembly, characterized in that: include: shell; An input shaft rotatably disposed on the housing; A power generation mechanism, disposed in the housing and comprising a first power generation unit and a second power generation unit, wherein the first power generation unit comprises a first stator and a first rotor, and the second power generation unit comprises a second stator and a second rotor; The switching mechanism is arranged in the housing and is used for switching the transmission connection or separation between the input shaft and the first rotor and the second rotor.

2. The generator assembly according to claim 1, characterized in that: The switching mechanism comprises: A transmission output member, disposed on the input shaft and rotating synchronously with the input shaft; A first transmission member, disposed on the first rotor and rotating synchronously with the first rotor; A second transmission member, disposed on the second rotor and rotating synchronously with the second rotor; The first switching unit and the second switching unit are used to control the transmission connection or separation of the first transmission member and the second transmission member with the transmission output member, respectively.

3. The generator assembly according to claim 2, characterized in that: The first switching unit and the second switching unit are respectively used to drive the first transmission member and the second transmission member to move axially along the input shaft to control the first transmission member and the second transmission member to be connected or disconnected with the transmission output member.

4. The generator assembly according to claim 3, characterized in that: In the axial direction of the input shaft, the first transmission member is movable relative to the first rotor to be drivingly connected to or separated from the transmission output member, and the second transmission member is movable relative to the second rotor to be drivingly connected to or separated from the transmission output member.

5. The generator assembly according to claim 3, characterized in that: The first switching unit includes a first elastic return member and a first baffle, the first baffle and the first transmission member define a first hydraulic chamber, the first elastic return member and the first hydraulic chamber are located on opposite sides of the first transmission member, and the second switching unit includes a second elastic return member and a second baffle, the second baffle and the second transmission member define a second hydraulic chamber, the second elastic return member and the second hydraulic chamber are located on opposite sides of the second transmission member.

6. The generator assembly according to claim 5, characterized in that: It also includes a fixed shaft, the first stator is fixed on the fixed shaft, and in the axial direction of the input shaft, the first switching unit and the second switching unit are respectively located on the opposite sides of the first stator, and a first oil circuit and a second oil circuit are formed on the fixed shaft, the first oil circuit is connected to the first hydraulic chamber, and the second oil circuit is connected to the second hydraulic chamber.

7. The generator assembly according to claim 6, characterized in that: The first transmission member and the second transmission member are located on the same side of the transmission output member in the axial direction of the input shaft, and the matching positions of the first transmission member and the second transmission member with the transmission output member are arranged along the radial direction of the input shaft.

8. The generator assembly according to claim 7, characterized in that: The first transmission member includes a first transmission part and a first matching part, the second transmission member includes a second transmission part and a second matching part, the first transmission part and the second transmission part are used for transmission connection with the transmission output member, the first matching part and the second matching part are both rotatably arranged on the fixed shaft and are respectively located on opposite sides of the first stator, the first transmission part is located on the side of the first stator facing the transmission output member and is connected to the outer peripheral side of the first matching part, the second transmission part is located on the outer peripheral side of the first transmission member and the first power generation unit and is connected to the outer peripheral side of the second matching part, the first matching part and the first baffle define the first hydraulic chamber, and the second matching part and the second baffle define the second hydraulic chamber.

9. The generator assembly according to claim 8, characterized in that: In the axial direction of the input shaft, the first elastic reset member is located on a side of the first matching portion away from the first power generation unit, and the second elastic reset member is located on a side of the second matching portion away from the second power generation unit.

10. The generator assembly according to claim 2, characterized in that: The transmission output member, the first transmission member and the second transmission member are all friction discs.

11. The generator assembly according to claim 1, characterized in that: The first power generation unit and the second power generation unit are arranged along the radial direction of the input shaft, and the second power generation unit is located on the outer peripheral side of the first power generation unit.

12. The generator assembly according to claim 11, characterized in that: The first stator and the first rotor are arranged along the radial direction of the input shaft, and the second stator and the second rotor are arranged along the axial direction of the input shaft.

13. The generator assembly according to claim 12, characterized in that: In the axial direction of the input shaft, the second stator has two parts distributed on opposite sides of the second rotor.

14. The generator assembly according to claim 1, characterized in that: The first power generation unit and the second power generation unit have different high efficiency ranges.

15. A vehicle, characterized in that: include: A generator assembly according to any one of claims 1 to 14.

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