Vibration reduction assembly of range extender and vehicle

Abstract

The utility model discloses a vibration reduction assembly of a range extender and a vehicle, and the vibration reduction assembly of the range extender comprises a vibration reduction shaft which is suitable for penetrating through an inner hole of a crankshaft and / or an inner hole of a rotor; and the power vibration reduction part is arranged on the vibration reduction shaft in a sleeving mode, and the power vibration reduction part is used for being in contact fit with the crankshaft or the rotor. Therefore, vibration and impact transmitted to the damping shaft by the crankshaft and the rotor can be reduced, vibration transmitted to the generator can be reduced, the service life of the generator can be prolonged, and noise can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of range extenders, in particular to a vibration reduction component of a range extender and a vehicle. Background Art

[0002] In the prior art, a flywheel and a torsional vibration damper are installed between the engine and the generator. The generator is generally connected to the engine through the torsional vibration damper to reduce the vibration transmitted to the generator assembly. However, this connection method is heavy, long, and costly, which is not conducive to the rapid development and application of range extender technology. In addition, the vibration of the engine is directly transmitted to the generator assembly without any attenuation, resulting in a reduction in the service life of the generator assembly components and causing corresponding

[0003] Noise problem. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a vibration reduction assembly of a range extender, which can reduce the vibration and impact transmitted from the crankshaft and the rotor to the vibration reduction shaft, thereby reducing the vibration transmitted to the generator, extending the service life of the generator, and reducing noise.

[0005] The utility model further provides a vehicle.

[0006] The vibration reduction assembly of the range extender according to the first embodiment of the utility model comprises: a vibration reduction shaft, the vibration reduction shaft is suitable for passing through the inner hole of the crankshaft and / or the inner hole of the rotor; a power vibration reduction member, the power vibration reduction member is sleeved on the vibration reduction member

[0007] The dynamic vibration damper is used for contacting and cooperating with the crankshaft or the rotor.

[0008] Therefore, the vibration damping assembly can reduce the vibration and impact transmitted from the crankshaft and the rotor to the vibration damping shaft, thereby reducing

[0009] The vibration transmitted to the generator can also extend the service life of the generator and reduce noise.

[0010] According to some embodiments of the utility model, the vibration damping shaft comprises: a crankshaft mating section, the crankshaft mating section is suitable for penetrating the inner hole of the crankshaft; a rotor mating section, the rotor mating section is connected to the crankshaft mating section, the rotor mating section is suitable for penetrating the inner hole of the rotor; wherein at least one of the crankshaft mating section and the rotor mating section

[0011] A sleeve is provided with the dynamic vibration damping member.

[0012] According to some embodiments of the present invention, at least one of the crankshaft mating section and the rotor mating section is provided with a first mounting groove, a portion of the power vibration damper is provided in the first mounting groove and another portion protrudes out of the first mounting groove.

[0013] According to some embodiments of the utility model, the vibration damping shaft also includes: a bearing fitting section, the bearing fitting section is connected to one end of the rotor fitting section away from the crankshaft fitting section; the vibration damping assembly also includes: a bearing vibration damping member, the bearing vibration damping member is sleeved on the bearing fitting section, and the bearing vibration damping member is suitable for passing through the inner ring of the bearing and suitable for contacting and fitting with the inner ring.

[0014] According to some embodiments of the present invention, the bearing fitting section is provided with a second installation groove, a portion of the bearing vibration damper is provided in the second installation groove and another portion protrudes out of the second installation groove.

[0015] According to some embodiments of the utility model, the vibration damping assembly of the range extender further includes: an elastic vibration damping member, which is sleeved on the bearing mating section, one side of the elastic vibration damping member abuts against the rotor mating section and the other side is suitable for abutting against the bearing.

[0016] According to some embodiments of the utility model, the elastic vibration damping member includes: a spring portion; a planar contact portion, wherein the planar contact portion is respectively connected to two opposite sides of the spring portion, the planar contact portion on one side abuts against the rotor mating section and the planar contact portion on the other side is suitable for abutting against the bearing.

[0017] According to some embodiments of the present invention, a limiting protrusion is provided on the outer circumference of the rotor matching section, and the limiting protrusion is used for circumferential limiting matching with the rotor.

[0018] According to the second aspect of the present invention, the range extender comprises: a crankshaft; a rotor, the rotor comprising a rotor bracket; the above-mentioned vibration reduction assembly of the range extender, the vibration reduction shaft passing through the inner hole of the crankshaft and / or the inner hole of the rotor bracket.

[0019] A vehicle according to an embodiment of the third aspect of the utility model includes: the above-mentioned range extender.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 is a schematic structural diagram of a range extender according to an embodiment of the utility model;

[0023] Figure 2 is a cross-sectional view of the vibration reduction assembly according to an embodiment of the utility model in cooperation with the crankshaft and the rotor;

[0024] Figure 3 is a schematic structural diagram of a vibration reduction assembly according to an embodiment of the utility model;

[0025] Figure 4 is a cross-sectional view of a vibration reduction assembly according to an embodiment of the utility model;

[0026] Figure 5 It is a schematic diagram of the structure of the crankshaft matching section containing a power vibration damping member matching with the crankshaft according to an embodiment of the utility model;

[0027] Figure 6 It is a structural schematic diagram of a crankshaft matching section provided with a dynamic vibration damping member according to an embodiment of the utility model;

[0028] Figure 7 It is a cross-sectional view of a crankshaft matching section provided with a dynamic vibration damping member according to an embodiment of the utility model;

[0029] Figure 8 It is a schematic diagram of the structure of the rotor matching section including the dynamic vibration damping member matching with the rotor according to an embodiment of the utility model;

[0030] Fig. 9 It is a structural schematic diagram of a rotor matching section provided with a dynamic vibration damping member according to an embodiment of the utility model;

[0031] Fig.10 It is a cross-sectional view of a rotor matching section provided with a dynamic vibration damping member according to an embodiment of the utility model;

[0032] Fig.11 is a schematic structural diagram of an elastic vibration damping member according to an embodiment of the utility model;

[0033] Fig.12 is a schematic structural diagram of a rotor support according to an embodiment of the utility model;

[0034] Fig.13 It is a cross-sectional view of a rotor bracket according to an embodiment of the utility model.

[0035] Reference numerals:

[0036] 200, range extender;

[0037] 100. Vibration reduction assembly;

[0038] 10. Vibration damping shaft; 11. Crankshaft matching section; 12. Rotor matching section; 121. Position limiting protrusion; 13. Bearing matching section; 131. Second mounting groove;

[0039] 20. Power vibration damping parts;

[0040] 30. first mounting groove; 40. bearing vibration damping member;

[0041] 50. elastic vibration damping member; 51. spring portion; 52. plane contact portion;

[0042] 60, crankshaft; 70, rotor; 71, rotor bracket; 72, rotor matching part; 73, positioning groove; 74, mounting hole; 75, rotor core supporting part;

[0043] 80. Bearings. DETAILED DESCRIPTION

[0044] Embodiments of the present invention are described in detail below, and the embodiments described with reference to the accompanying drawings are exemplary.

[0045] Reference below Figure 1-Figure 13 The vibration reduction assembly 100 of the range extender 200 according to the embodiment of the present invention is described.

[0046] like Figure 1 As shown, the vibration damping assembly 100 of the range extender 200 according to the first aspect of the embodiment of the utility model includes: a vibration damping shaft 10 and a power vibration damping member 20, the vibration damping shaft 10 is suitable for passing through the inner hole of the crankshaft 60 and / or the inner hole of the rotor 70, the power vibration damping member 20 is sleeved on the vibration damping shaft 10, and the power vibration damping member 20 is used to contact and cooperate with the crankshaft 60 or the rotor 70.

[0047] Specifically, the connection method between the shaft systems in the traditional powertrain is hard connection, which causes the vibration of the engine to be directly transmitted to the generator assembly without any weakening. This will cause the components of the generator assembly to vibrate, causing corresponding noise problems and reducing the service life of the powertrain.

[0048] Therefore, the vibration damping assembly 100 of the range extender 200 is mainly composed of a vibration damping shaft 10 and a power vibration damping member 20. The vibration damping shaft 10 is suitable for passing through the inner hole of the crankshaft 60 and / or the inner hole of the rotor 70. That is to say, when the vibration damping shaft 10 passes through the inner hole of the crankshaft 60, it is convenient for the vibration damping shaft 10 to be connected and matched with the crankshaft 60, so that the power of the crankshaft 60 can be directly transmitted to the generator through the vibration damping shaft 10.

[0049] Alternatively, the damper shaft 10 passes through the inner hole of the crankshaft 60, and at the same time, the damper shaft 10 also passes through the inner hole of the rotor 70 of the generator, so that the damper shaft 10 can be connected and cooperated with the crankshaft 60 and the rotor 70 at the same time, so that part of the power of the crankshaft 60 is directly transmitted through the damper shaft 10, and the other part of the power of the crankshaft 60 first passes through the rotor 70, and then is transmitted to the damper shaft 10, and finally is transmitted to the generator.

[0050] Alternatively, the damper shaft 10 only passes through the inner hole of the rotor 70, and the damper shaft 10 is connected to the crankshaft 60 through the rotor 70. In this way, when the crankshaft 60 rotates, the crankshaft 60 can transmit power to the damper shaft 10 through the rotor 70. Finally, the damper shaft 10 transmits power to the generator. The power transmission method can be selected according to actual conditions, and it has good adaptability.

[0051] In addition, a power vibration damper 20 is sleeved on the vibration damping shaft 10. The power vibration damper 20 can be set at the contact and matching position of the vibration damping shaft 10 and the crankshaft 60, or the power vibration damper 20 can be set at the contact and matching position of the vibration damping shaft 10 and the rotor 70, or the power vibration damper 20 is set at the contact and matching position of the vibration damping shaft 10 and the crankshaft 60 and the rotor 70. In this way, the vibration damping shaft 10 can be softly connected with the crankshaft 60 and the rotor 70 respectively, and the vibration of the crankshaft 60 and the rotor 70 can be buffered and absorbed by the power vibration damper 20. In this way, the vibration and impact transmitted to the vibration damping shaft 10 by the crankshaft 60 and the rotor 70 can be reduced, thereby reducing the vibration transmitted to the generator, extending the service life of the generator, and reducing noise.

[0052] Furthermore, the power vibration damper 20 can be a vibration damping rubber ring, which can be integrated with the vibration damping shaft 10 by injection molding, or fixedly installed on the vibration damping shaft 10. The vibration damping rubber ring extends along the axial direction of the vibration damping shaft 10. Since the vibration damping rubber ring can be elastically deformed, the vibration damping rubber ring can play a buffering role. When the power vibration damper 20 is in contact with the crankshaft 60, the vibration can be reduced from the source of the crankshaft 60, thereby preventing the transmission of the vibration of the crankshaft 60. When the power vibration damper 20 is in contact with the rotor 70, the vibration transmitted from the rotor 70 to the vibration damping shaft 10 can be reduced. When the crankshaft 60 is running, yaw vibration and axial movement will be generated. Due to the setting of the power vibration damper 20, the vibration damping shaft 10 can buffer the vibration and impact of the crankshaft 60 on the generator shaft from both radial and axial directions.

[0053] Therefore, the vibration reduction assembly 100 can reduce the vibration and impact transmitted to the vibration reduction shaft 10 by the crankshaft 60 and the rotor 70, thereby reducing the vibration transmitted to the generator, extending the service life of the generator, and reducing noise.

[0054] According to some embodiments of the present invention, Figure 3 As shown, the vibration damping shaft 10 includes: a crankshaft mating section 11 and a rotor mating section 12, the crankshaft mating section 11 is suitable for passing through the inner hole of the crankshaft 60, the rotor mating section 12 is connected to the crankshaft mating section 11, and the rotor mating section 12 is suitable for passing through the inner hole of the rotor 70, wherein at least one of the crankshaft mating section 11 and the rotor mating section 12 is sleeved with a dynamic vibration damping part 20.

[0055] Among them, the outer diameters of the crankshaft mating section 11 and the rotor mating section 12 are different. The outer diameter of the crankshaft mating section 11 is smaller than the outer diameter of the rotor mating section 12, so that the crankshaft mating section 11 and the rotor mating section 12 are stepped. In this way, the crankshaft mating section 11 passes through the inner hole of the crankshaft 60, so that the crankshaft mating section 11 and the crankshaft 60 can be limited and matched, and the rotor mating section 12 passes through the inner hole of the rotor 70, so that the rotor mating section 12 and the rotor 70 can be limited and matched.

[0056] In addition, at least one of the crankshaft mating section 11 and the rotor mating section 12 is sleeved with a power damper 20, that is, the crankshaft mating section 11 can be sleeved with the power damper 20, so that the vibration and impact force transmitted to the damping shaft 10 can be reduced from the crankshaft 60 at the source. Or the rotor mating section 12 is sleeved with the power damper 20, so that the vibration generated by the crankshaft 60 during operation can be attenuated by the rotor 70, and then the rotor 70 absorbs the attenuated vibration through the power damper 20, so that the vibration transmitted to the damping shaft 10 can be further reduced.

[0057] Furthermore, the crankshaft mating section 11 and the rotor mating section 12 are both sleeved with a dynamic vibration damper 20. In this way, not only can the transmission of vibration between the crankshaft 60 and the crankshaft mating section 11 be reduced, but secondary vibration reduction can also be performed through the dynamic vibration damper 20 between the rotor 70 and the rotor mating section 12. This can further attenuate the transmission of vibration, thereby reducing vibration and impact, extending the service life of components, and making the vibration damping shaft 10 more stable during operation.

[0058] In addition, a weight-reducing hole is opened inside the vibration-damping shaft 10, and the weight-reducing hole is a through hole. The weight-reducing hole extends along the central axis direction of the vibration-damping shaft 10, so that it can not only play a role in weight reduction, but also because the middle part of the vibration-damping shaft 10 is a through hole, an energy-absorbing cavity can be formed in the middle part of the vibration-damping shaft 10, thereby further reducing the vibration of the vibration-damping shaft 10.

[0059] According to some embodiments of the present invention, Figure 2 As shown, at least one of the crankshaft mating section 11 and the rotor mating section 12 is provided with a first mounting groove 30 , a portion of the power vibration damper 20 is disposed in the first mounting groove 30 , and another portion of the power vibration damper 20 protrudes out of the first mounting groove 30 .

[0060] Among them, at least one of the crankshaft mating section 11 and the rotor mating section 12 is provided with a first mounting groove 30, that is, when the crankshaft mating section 11 is provided with a power vibration damper 20, the outer periphery of the crankshaft mating section 11 is correspondingly provided with a first mounting groove 30, and when the rotor mating section 12 is provided with a power vibration damper 20, the outer periphery of the rotor mating section 12 is correspondingly provided with a first mounting groove 30, and when both the crankshaft mating section 11 and the rotor mating section 12 are provided with a power vibration damper 20, the outer periphery of the crankshaft mating section 11 is correspondingly provided with a first mounting groove 30, and the outer periphery of the rotor mating section 12 is also provided with a first mounting groove 30.

[0061] In addition, a part of the power damper 20 is disposed in the first mounting groove 30, and a part of the power damper 20 is embedded in the first mounting groove 30, which can limit the movement and dislocation of the power damper 20, so that a part of the power damper 20 can be more closely matched with the first mounting groove 30. Moreover, another part of the power damper 20 protrudes out of the first mounting groove 30, which can facilitate contact and matching with the crankshaft 60 or the rotor 70. During the matching process, the part of the power damper 20 protruding out of the first mounting groove 30 is squeezed and elastically deformed, which can not only make the power damper 20 more closely matched with the crankshaft 60 or the rotor 70, but also play a buffering role to reduce vibration.

[0062] According to some embodiments of the present invention, Figure 3 As shown, the vibration damping shaft 10 also includes: a bearing mating section 13, the bearing mating section 13 is connected to the end of the rotor mating section 12 away from the crankshaft mating section 11, and the vibration damping assembly 100 also includes: a bearing vibration damping member 40, the bearing vibration damping member 40 is sleeved on the bearing mating section 13, the bearing vibration damping member 40 is suitable for passing through the inner ring of the bearing 80, and the bearing vibration damping member 40 is suitable for contacting and mating with the inner ring.

[0063] The bearing fitting section 13 can provide an installation space for the bearing 80 of the generator, so that the bearing fitting section 13 of the vibration-damping shaft 10 can transmit power to the generator for generating electricity.

[0064] In addition, the bearing vibration damper 40 is sleeved on the bearing mating section 13, and the bearing vibration damper 40 passes through the inner ring of the bearing 80, so that the vibration and impact of the vibration damping shaft 10 can be buffered and absorbed for the third time, thereby reducing the vibration between the bearing mating section 13 and the bearing 80.

[0065] Specifically, the bearing vibration damper 40 is an O-ring, and there are multiple bearing vibration dampers 40. The multiple bearing vibration dampers 40 are arranged at intervals along the axial direction of the bearing mating section 13. This can not only ensure that the inner ring of the bearing 80 rotates with the vibration damping shaft 10 without any relative speed difference, but also prevent the inner ring of the bearing 80 from micro-wear, thereby extending the service life of the bearing 80.

[0066] For example, two bearing vibration dampers 40 can be provided, and two O-rings are arranged at intervals in the bearing mating section 13, so that the inner ring of the bearing 80 and the vibration damping shaft 10 can be softly connected through the bearing vibration damper 40, so that the vibration and impact are buffered for the third time and then transmitted to the bearing 80 of the generator, thereby extending the service life of the bearing 80.

[0067] According to some embodiments of the present invention, Figure 2 As shown, the bearing fitting section 13 is provided with a second installation groove 131 , a portion of the bearing vibration damper 40 is disposed in the second installation groove 131 , and another portion of the bearing vibration damper 40 protrudes out of the second installation groove 131 .

[0068] Part of the bearing vibration damper 40 is embedded in the second installation groove 131, which can limit the movement and dislocation of the bearing vibration damper 40, so that part of the bearing vibration damper 40 can be more closely matched with the second installation groove 131. In addition, another part of the bearing vibration damper 40 protrudes out of the second installation groove 131, which can facilitate the contact and matching between the bearing vibration damper 40 and the inner ring of the bearing 80. During the matching process, the part of the bearing vibration damper 40 protruding out of the second installation groove 131 is squeezed and elastically deformed, which can not only make the bearing vibration damper 40 and the inner ring of the bearing 80 more closely matched, but also play a buffering role to reduce vibration.

[0069] According to some embodiments of the present invention, Figure 2 As shown, the vibration damping assembly 100 of the range extender 200 also includes: an elastic vibration damping member 50, which is sleeved on the bearing mating section 13, one side of the elastic vibration damping member 50 is abutted against the rotor mating section 12, and the other side of the elastic vibration damping member 50 is suitable for abutting against the bearing 80.

[0070] Among them, the elastic vibration damper 50 can provide a certain preload force for the bearing 80. During the operation of the engine crankshaft 60, the crankshaft 60 produces axial movement, which will cause an axial impact force on the bearing 80 of the generator. The elastic vibration damper 50 is located between the rotor mating section 12 and the bearing 80, so that the elastic vibration damper 50 can reduce the axial impact and further extend the service life of the bearing 80.

[0071] According to the specific embodiment of the utility model, Figure 2 and Fig.11 As shown, the elastic vibration damper 50 includes: a spring portion 51 and a planar contact portion 52, the planar contact portion 52 is respectively connected to the opposite sides of the spring portion 51, the planar contact portion 52 on one side abuts and cooperates with the rotor matching section 12, and the planar contact portion 52 on the other side is suitable for abutting and cooperating with the bearing 80.

[0072] Specifically, the elastic vibration damper 50 is mainly composed of a spring portion 51 and a planar contact portion 52. The planar contact portion 52 is located at both ends of the spring portion 51. In this way, the planar contact portion 52 adopts a planar design. The planar spring portion 51 at one end of the spring portion 51 contacts and cooperates with the end face of the rotor mating section 12, and the planar spring portion 51 at the other end of the spring portion 51 contacts and cooperates with the inner ring end face of the bearing 80, which can increase the contact area, thereby making the elastic vibration damper 50 more stably connected to the end face of the rotor mating section 12 and the inner ring end face of the bearing 80 respectively.

[0073] Furthermore, the length of the elastic vibration damper 50 when not compressed is greater than the axial distance between the end face of the rotor mating section 12 and the inner ring end face of the bearing 80. When the elastic vibration damper 50 is arranged between the end face of the rotor mating section 12 and the inner ring end face of the bearing 80, the spring portion 51 can be compressed, thereby providing a certain preload force to the bearing 80.

[0074] According to some embodiments of the present invention, Figure 6 and Figure 7 As shown, a limiting protrusion 121 is provided on the outer circumference of the rotor matching section 12 , and the limiting protrusion 121 is used for limiting the circumferential matching with the rotor 70 .

[0075] There are multiple limiting protrusions 121, and the multiple limiting protrusions 121 are evenly spaced along the circumference of the rotor matching section 12, so that the limiting protrusions 121 and the rotor 70 can be more tightly and firmly matched in the circumferential limit direction. For example, two limiting protrusions 121 can be provided, and the two limiting protrusions 121 are symmetrically arranged in the upper and lower directions of the outer circumference of the rotor matching section 12, so that when the limiting protrusion 121 is matched with the rotor 70, the force between the limiting protrusion 121 and the rotor 70 can be more uniform.

[0076] In addition, the limiting protrusion 121 is connected to the annular protrusion, the annular protrusion abuts against one end of the elastic vibration damping member 50, and the other end of the elastic vibration damping member 50 abuts against the inner ring of the bearing 80, thereby providing a preload force to the bearing 80.

[0077] According to the range extender 200 of the second embodiment of the utility model, Figure 1 and Figure 2As shown, it includes: a crankshaft 60 , a rotor 70 and the vibration reduction assembly 100 of the range extender of the above embodiment, the rotor 70 includes a rotor bracket 71 , and the vibration reduction shaft 10 passes through the inner hole of the crankshaft 60 and / or the inner hole of the rotor bracket 71 .

[0078] Specifically, the vibration damping shaft 10 can pass through the inner hole of the crankshaft 60, the inner hole of the rotor bracket 71 and the inner ring of the bearing 80. A rotor matching portion 72 is provided in the middle of the rotor bracket 71. The rotor matching portion 72 protrudes toward the bearing 80. A positioning groove 73 is provided at one end of the rotor matching portion 72 close to the limiting protrusion 121. A plurality of positioning grooves 73 can be provided. The plurality of positioning grooves 73 are arranged at intervals along the circumference of the rotor matching portion 72. The limiting protrusion 121 extends into the positioning groove 73, which can ensure that the vibration damping shaft 10 and the rotor bracket 71 run synchronously without a relative speed difference, and can also realize the limiting matching function of the rotor bracket 71 and the vibration damping shaft 10, and can also realize the rapid positioning and installation of the rotor bracket 71 and the vibration damping shaft 10.

[0079] Furthermore, a plurality of mounting holes 74 are provided on the outer periphery of the rotor mating portion 72, and the plurality of mounting holes 74 are arranged at intervals along the circumference of the rotor mating portion 72. The plurality of mounting holes 74 are fixedly connected to the crankshaft 60 via fasteners, and the fasteners may be bolts, thereby making the connection between the rotor bracket 71 and the crankshaft 60 more stable and firm.

[0080] In addition, the rotor bracket 71 further includes: a rotor core support portion 75, and the rotor core support portion 75 is arranged around the rotor matching portion 72, so that the rotor core support portion 75 can provide support force and installation position for the rotor core.

[0081] A vehicle according to an embodiment of the third aspect of the utility model includes: the range extender 200 of the above embodiment.

[0082] The vibration reduction assembly 100 in the range extender 200 can buffer the vibration and impact of the crankshaft 60 on the generator shaft in both radial and axial directions, thereby extending the service life of the generator and reducing noise.

[0083] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0084] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" 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 utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0085] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate 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 vibration reduction assembly for a range extender, characterized in that: include: A vibration-damping shaft, wherein the vibration-damping shaft is suitable for passing through the inner hole of the crankshaft and / or the inner hole of the rotor; A power vibration damper is sleeved on the vibration damping shaft and is used for contacting and cooperating with the crankshaft or the rotor.

2. The vibration reduction assembly of the range extender according to claim 1, characterized in that: The vibration-damping shaft comprises: A crankshaft mating section, wherein the crankshaft mating section is suitable for penetrating the inner hole of the crankshaft; a rotor mating section, the rotor mating section being connected to the crankshaft mating section, the rotor mating section being suitable for penetrating the inner hole of the rotor; Wherein, at least one of the crankshaft mating section and the rotor mating section is sleeved with the dynamic vibration damping component.

3. The vibration reduction assembly of the range extender according to claim 2, characterized in that: At least one of the crankshaft mating section and the rotor mating section is provided with a first mounting groove, a portion of the power vibration damper is provided in the first mounting groove and another portion protrudes out of the first mounting groove.

4. The vibration reduction assembly of the range extender according to claim 2, characterized in that: The vibration-damping shaft further comprises: A bearing fitting section, the bearing fitting section being connected to an end of the rotor fitting section away from the crankshaft fitting section; The vibration reduction assembly also includes: A bearing vibration damper is sleeved on the bearing matching section, and the bearing vibration damper is suitable for passing through the inner ring of the bearing and for contacting and matching with the inner ring.

5. The vibration reduction assembly of the range extender according to claim 4, characterized in that: The bearing fitting section is provided with a second installation groove, a portion of the bearing vibration damping member is arranged in the second installation groove and another portion protrudes out of the second installation groove.

6. The vibration reduction assembly of the range extender according to claim 4, characterized in that: Also includes: An elastic vibration damping member is sleeved on the bearing matching section, one side of the elastic vibration damping member is in abutment with the rotor matching section and the other side is suitable for abutment with the bearing.

7. The vibration reduction assembly of the range extender according to claim 6, characterized in that: The elastic vibration damping member comprises: Spring part; A planar contact portion is connected to two opposite sides of the spring portion, wherein the planar contact portion on one side is in abutment with the rotor matching section and the planar contact portion on the other side is suitable for abutment with the bearing.

8. The vibration reduction assembly of the range extender according to claim 2, characterized in that: A limiting protrusion is arranged on the outer circumference of the rotor matching section, and the limiting protrusion is used for matching with the rotor in the circumferential limiting direction.

9. A range extender, characterized in that: include: Crankshaft; A rotor, the rotor comprising a rotor support; The vibration damping assembly of the range extender according to any one of claims 1 to 8, wherein the vibration damping shaft passes through the inner hole of the crankshaft and / or the inner hole of the rotor bracket.

10. A vehicle, characterized in that: include: The range extender as claimed in claim 9.

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