Power assembly and vehicle

Abstract

The utility model discloses a power assembly and a vehicle, and relates to the technical field of vehicles, the power assembly is applied to the vehicle, the vehicle is provided with a girder, and the power assembly comprises an auxiliary frame and an auxiliary frame, the range extenders are arranged on the auxiliary frame, and the range extenders are arranged on the auxiliary frame; the first damping device is arranged between the auxiliary frame and the girder, and the auxiliary frame is connected with the girder through the first damping device. According to the technical scheme, the NVH performance of the vehicle is improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a powertrain and a vehicle. Background Technology

[0002] A range-extended electric vehicle (REEV) is an electric vehicle that uses other energy sources (such as gasoline) to replenish its electrical power when the battery is low. The main characteristic of this type of electric vehicle is that it operates in pure electric mode most of the time, and in range-extending mode in a few situations. In this mode, the electrical energy generated by the range extender powers the motor through the battery and can also charge the battery.

[0003] Existing range-extended electric vehicles mount the range extender directly onto the vehicle's frame. When the range extender is working, the vibration generated by the range extender acts directly on the frame, adversely affecting the vehicle's NVH (Noise, Vibration, Harshness) performance. Utility Model Content

[0004] The main objective of this invention is to propose a powertrain and vehicle designed to improve the vehicle's NVH performance.

[0005] To achieve the above objectives, the present invention proposes a powertrain for use in a vehicle, the vehicle having a frame, the powertrain comprising:

[0006] Subframe;

[0007] Range extenders, wherein at least two range extenders are provided and mounted on the subframe; and

[0008] A first vibration damping device is disposed between the subframe and the main beam, and the subframe is connected to the main beam through the first vibration damping device.

[0009] In one embodiment, the powertrain further includes a second damping device, through which the range extender is mounted to the subframe.

[0010] In one embodiment, the first vibration damping device includes a plurality of first vibration damping components, and the first vibration damping components are provided on both sides of the subframe in the width direction. The subframe is mounted to the main beam through the plurality of first vibration damping components.

[0011] In one embodiment, the first vibration damping component includes:

[0012] The first bracket is used to connect the main beam;

[0013] A first mounting component is connected to the subframe; and

[0014] A first elastic structure elastically connects the first bracket and the first mounting component.

[0015] In one embodiment, the first bracket is provided with a first receiving groove, the first mounting member at least partially extends into the interior of the first receiving groove and has a gap with the inner wall of the first receiving groove, the first elastic structure is disposed within the gap and connects the inner wall of the first receiving groove and the outer wall of the first mounting member; and / or,

[0016] The first elastic structure is located on the side of the subframe facing the ground.

[0017] In one embodiment, the second vibration damping device includes:

[0018] A second damping assembly is located at the front end of the range extender and connected to the subframe; and

[0019] The third damping component is provided on both sides of the range extender in the width direction, and each of the third damping components is connected to the subframe.

[0020] In one embodiment, the subframe includes:

[0021] The transverse frame, the third damping assembly connecting the range extender and the transverse frame; and

[0022] A vertical frame, fixed to the horizontal frame and extending along the height direction of the vehicle, and a second damping assembly connecting the front end of the range extender and the vertical frame.

[0023] In one embodiment, the transverse frame includes two first crossbeams and two longitudinal beams arranged opposite each other, with each of the first crossbeams connected to the two longitudinal beams at both ends, and the third vibration damping component disposed on the longitudinal beams;

[0024] The vertical frame includes a first sub-frame and at least one second sub-frame. The first sub-frame is located on the first crossbeam, and the second sub-frame is located between the two longitudinal beams and connects the two longitudinal beams.

[0025] In one embodiment, the second sub-frame includes:

[0026] Two vertical beams are provided opposite to each other, and each vertical beam is perpendicularly connected to the longitudinal beam; and

[0027] There are two second crossbeams, each connected to two vertical beams at both ends, and the second vibration damping component is located on the second crossbeam.

[0028] In one embodiment, the second vibration damping component includes:

[0029] The second bracket is fixed to the second crossbeam, and the second bracket is provided with a second receiving slot;

[0030] A second elastic structure is disposed inside the second receiving groove; and

[0031] The second mounting component has one end inserted into the interior of the second elastic structure, and the other end connected to the front end of the range extender.

[0032] In one embodiment, the third vibration damping component includes:

[0033] The third bracket is fixed to the longitudinal beam;

[0034] The third mounting component connects to the side wall of the range extender; and

[0035] A third elastic structure elastically connects the third bracket and the third mounting component.

[0036] In one embodiment, the third elastic structure is located on the side of the longitudinal beam facing away from the ground.

[0037] This utility model also proposes a vehicle, comprising:

[0038] The aforementioned powertrain; and

[0039] The powertrain is connected to the main beam.

[0040] The powertrain in this invention includes a subframe, range extenders, and a first vibration damping device. At least two range extenders are provided, increasing the number of range extenders improves the vehicle's power performance and charging efficiency. These range extenders are mounted on the same subframe, which is then connected to the main frame via the first vibration damping device. At the subframe level, the vibrations generated by multiple range extenders are coupled into a single vibration source, preventing two or more range extenders from resonating with the main frame separately. This reduces the number of vibration sources directly acting on the main frame and makes the vibration of the entire powertrain easier to control and eliminate, thereby improving the vehicle's ride smoothness and comfort, and ultimately enhancing its NVH performance. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0042] Figure 1A partial structural schematic diagram of an embodiment of the vehicle provided by this utility model;

[0043] Figure 2 A schematic diagram of the structure of an embodiment of the powertrain provided by this utility model Figure 1 ;

[0044] Figure 3 A schematic diagram of the structure of an embodiment of the powertrain provided by this utility model Figure 2 ;

[0045] Figure 4 A partial structural diagram of an embodiment of the powertrain provided by this utility model Figure 1 ;

[0046] Figure 5 A partial structural diagram of an embodiment of the powertrain provided by this utility model Figure 2 ;

[0047] Figure 6 A partial structural diagram of an embodiment of the powertrain provided by this utility model Figure 3 ;

[0048] Figure 7 A schematic diagram of the structure of the first vibration damping component of the first vibration damping device for the powertrain provided by this utility model;

[0049] Figure 8 A schematic diagram of the structure of the second vibration damping component of the second vibration damping device for the powertrain provided by this utility model.

[0050] Explanation of icon numbers:

[0051] 100. Subframe; 110. Transverse frame; 111. First crossbeam; 112. Longitudinal beam; 120. Vertical frame; 121. First subframe; 122. Second subframe; 1221. Vertical beam; 1222. Second crossbeam;

[0052] 200. Range extender;

[0053] 300. First vibration damping device; 310. First vibration damping assembly; 311. First bracket; 312. First mounting component; 313. First elastic structure;

[0054] 400. Second vibration damping device; 410. Second vibration damping assembly; 411. Second bracket; 412. Second mounting component; 420. Third vibration damping assembly; 421. Third bracket; 422. Third mounting component; 423. Third elastic structure;

[0055] 500, main beam.

[0056] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0057] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0058] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0059] In this utility model, unless otherwise explicitly specified and limited, the terms "connection" and "fixation" should be interpreted broadly. For example, "fixation" can mean a fixed connection, a detachable connection, or an integral part; "connection" can mean a mechanical connection or an electrical connection, a direct connection or an indirect connection through an intermediate medium, or a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0060] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0061] This utility model proposes a powertrain.

[0062] Please see Figures 1 to 2 , Figure 1 This is a partial structural schematic diagram of an embodiment of the vehicle provided by this utility model. Figure 2 A schematic diagram of the structure of an embodiment of the powertrain provided by this utility model Figure 1 .

[0063] In one embodiment of this utility model, the powertrain is applied to a vehicle, the vehicle having a frame 500, and the powertrain includes:

[0064] Subframe 100;

[0065] Range extender 200, having at least two units and mounted on subframe 100; and

[0066] The first vibration damping device 300 is located between the subframe 100 and the main beam 500, and the subframe 100 is connected to the main beam 500 through the first vibration damping device 300.

[0067] The powertrain in this utility model includes a subframe 100, range extenders 200, and a first vibration damping device 300. At least two range extenders 200 are provided. By increasing the number of range extenders 200, the vehicle's power performance and charging efficiency are improved. These range extenders 200 are mounted on the same subframe 100, which is then connected to the main beam 500 via the first vibration damping device 300. At the subframe 100 level, the vibrations generated by multiple range extenders 200 are coupled into a single vibration source, preventing two or more range extenders 200 from resonating with the main beam 500 separately. This reduces the number of vibration sources directly acting on the main beam 500 and makes the vibration of the entire powertrain easier to control and eliminate, thereby improving the vehicle's ride smoothness and comfort, and ultimately enhancing its NVH performance.

[0068] In one embodiment, the powertrain further includes a second damping device 400, through which the range extender 200 is mounted on the subframe 100.

[0069] Combination Figures 1 to 5 In this embodiment of the invention, the powertrain further includes a second damping device 400. The range extender 200 is connected to the subframe 100 via the second damping device 400, instead of being directly fixed to the subframe 100. Vibrations generated by the range extender 200 during operation are partially absorbed and reduced as they are transmitted to the subframe 100 via the second damping device 400. Then, as they are transmitted from the subframe 100 to the main beam 500 via the first damping device 300, they are again partially absorbed and reduced, achieving dual-stage damping. This significantly reduces the vibration transmitted from the range extender 200 to the main beam 500, further lowering the overall vehicle vibration level and improving vehicle comfort. Furthermore, the second damping device 400 also reduces the impact on the range extender 200 during vehicle operation, which helps extend the service life of the range extender 200.

[0070] In one embodiment, the first vibration damping device 300 includes a plurality of first vibration damping components 310. The first vibration damping components 310 are provided on both sides of the subframe 100 in the width direction. The subframe 100 is mounted on the main beam 500 through the plurality of first vibration damping components 310.

[0071] Combination Figure 1 and Figure 3 In this embodiment of the invention, the first vibration damping device 300 includes a plurality of first vibration damping components 310, which are distributed on both sides of the subframe 100 in the width direction. This helps to evenly disperse and absorb vibrations and impacts from the vehicle during operation, and improves the stability and reliability of the connection between the subframe 100 and the main beam 500. Furthermore, the first vibration damping device 300, formed by a plurality of first vibration damping components 310, is highly adaptable and can better meet the requirements of different vehicle models and powertrains, exhibiting strong adaptability. Specifically, in this embodiment, the first vibration damping device 300 includes four first vibration damping components 310, symmetrically arranged along the centerline of the subframe 100 in the width direction, with two first vibration damping components 310 on each side, improving the uniformity of the vibration damping effect of the first vibration damping device 300.

[0072] In one embodiment, the first vibration damping component 310 includes:

[0073] The first bracket 311 is used to connect the main beam 500;

[0074] The first mounting component 312 is connected to the subframe 100; and

[0075] The first elastic structure 313 elastically connects the first bracket 311 and the first mounting component 312.

[0076] Reference Figure 7 In this embodiment of the invention, the first vibration damping assembly 310 includes a first bracket 311, a first mounting component 312, and a first elastic structure 313. The first bracket 311 is fixed to the main beam 500 by bolts, welding, or other mechanical connections. The first mounting component 312 is connected to the subframe 100 by bolts, welding, or other mechanical connections. The first bracket 311 and the first mounting component 312 are made of materials such as iron alloy or aluminum alloy, possessing high strength and rigidity. The first elastic structure 313 is an elastic element, such as a rubber bushing or spring, connecting the first bracket 311 and the first mounting component 312. It is responsible for absorbing and buffering vibrations and impacts during vehicle operation, thereby improving the vehicle's ride smoothness and comfort, enhancing NVH performance, and extending the service life of the range extender 200. The entire first vibration damping assembly 310 has a simple structure and is easy to manufacture.

[0077] In one embodiment, the first bracket 311 is provided with a first receiving groove, the first mounting member 312 extends at least partially into the interior of the first receiving groove and has a gap with the inner wall of the first receiving groove, and the first elastic structure 313 is disposed within the gap and connects the inner wall of the first receiving groove and the outer wall of the first mounting member 312; and / or,

[0078] The first elastic structure 313 is located on the side of the subframe 100 facing the ground.

[0079] Reference Figure 7 In an embodiment of this utility model, the first bracket 311 is provided with a first receiving groove, a part of the first mounting member 312 is inserted into the first receiving groove, and the first elastic structure 313 fills the gap between the outer wall of the first mounting member 312 and the inner wall of the first receiving groove, so that the first elastic structure 313 wraps around the outside of the first mounting member 312. After the vibration of the subframe 100 in different directions is transmitted to the first mounting member 312, it can be absorbed and buffered by the first elastic structure 313, thereby improving the vibration reduction effect of the first damping component 310 and further improving the ride smoothness and comfort of the vehicle.

[0080] Combination Figures 5 to 7 In this embodiment of the present invention, the first elastic structure 313 is disposed on the side of the subframe 100 facing the ground. The first elastic structure 313, the first mounting member 312 and part of the first bracket 311 support the side of the subframe 100 facing the ground, so that the first elastic structure 313 can absorb and reduce the impact and vibration of the subframe 100 in the vertical direction, further improve the comfort of riding and the stability of driving, and further extend the service life of the range extender 200.

[0081] In one embodiment, the second vibration damping device 400 includes:

[0082] The second damping assembly 410 is located at the front end of the range extender 200 and connected to the subframe 100; and

[0083] The third damping component 420 is provided on both sides of the range extender 200 in the width direction, and each third damping component 420 is connected to the subframe 100.

[0084] Reference Figure 2 , Figure 3 as well as Figure 5In an embodiment of this utility model, the second vibration damping device 400 includes a second vibration damping component 410 and a third vibration damping component 420. The second vibration damping component 410 is located at the front end of the range extender 200 and connected to the subframe 100, effectively absorbing and reducing vibrations generated in the longitudinal direction of the range extender 200. At least one third vibration damping component 420 is provided on each side of the range extender 200 in the width direction, effectively absorbing and reducing vibrations in the width direction of the range extender 200. By providing vibration damping components at the front end and on both sides, the vibrations generated by the range extender 200 can be absorbed more comprehensively, improving the vibration damping effect of the second vibration damping device 400 and helping to maintain the stability of the range extender 200 under various driving conditions. Specifically, in this embodiment, a third damping component 420 is provided on each side of the range extender 200 in the width direction. The third damping component 420 is located near the rear end of the range extender 200. The second damping component 410 and the two third damping components form a three-point support for the range extender 200, which improves the stability of the range extender 200 on the subframe 100.

[0085] In one embodiment, the subframe 100 includes:

[0086] The transverse frame 110, the third damping assembly 420 connects the range extender 200 and the transverse frame 110; and

[0087] The vertical frame 120 is fixed to the horizontal frame 110 and extends along the height direction of the vehicle. The second damping assembly 410 connects the front end of the range extender 200 and the vertical frame 120.

[0088] Reference Figures 2 to 4 In this embodiment of the invention, the subframe 100 includes a transverse frame 110 and a vertical frame 120. The vertical frame 120 is fixed to the transverse frame 110 and extends along the height direction of the vehicle. The vertical frame 120 enhances the rigidity and stability of the subframe 100, helping to reduce vibration and impact on the subframe 100 and preventing deformation and twisting. The second damping component 410 connects the front end of the range extender 200 to the vertical frame 120, and the third damping component 420 connects the side of the range extender 200 to the transverse frame 110, enabling the entire subframe 100 to provide support for the range extender 200 in multiple directions, thereby further improving the stability of the range extender 200 mounted on the subframe 100.

[0089] In one embodiment, the transverse frame 110 includes two first transverse beams 111 arranged opposite to each other and two longitudinal beams 112 arranged opposite to each other. The two ends of each first transverse beam 111 are connected to the two longitudinal beams 112, and the third vibration damping component 420 is disposed on the longitudinal beam 112.

[0090] The vertical frame 120 includes a first sub-frame 121 and at least one second sub-frame 122. The first sub-frame 121 is located on the first crossbeam 111, and the second sub-frame 122 is located between and connects the two longitudinal beams 112.

[0091] Reference Figure 2 and Figure 5 In an embodiment of this utility model, the transverse frame 110 includes two first crossbeams 111 and two longitudinal beams 112 arranged opposite to each other. The two first crossbeams 111 and the two longitudinal beams 112 are connected end to end to form a frame structure, which makes the transverse frame 110 itself have good rigidity and a simple structure that is easy to manufacture. The vertical frame 120 includes a first sub-frame 121 and at least one second sub-frame 122. The first sub-frame 121 is located on the first crossbeam 111, and the second sub-frame 122 is located between the two longitudinal beams 112. The total number of first sub-frames 121 and second sub-frames 122 corresponds to the number of range extenders 200. For example, if two range extenders 200 are provided, then one first sub-frame 121 and one second sub-frame 122 are provided. One range extender 200 is connected to the first sub-frame 121 through a second vibration damping component 410, and the other range extender 200 is connected to the second sub-frame 122 through the second vibration damping component 410. The second subframe 122 is located between and connects the two longitudinal beams 112, thereby improving the strength and stiffness of the transverse frame 110.

[0092] In one embodiment, the second subframe 122 includes:

[0093] Two vertical beams 1221 are provided opposite to each other, and each vertical beam 1221 is perpendicularly connected to the longitudinal beam 112; and

[0094] There are two second crossbeams 1222, each of which is connected to two vertical beams 1221 at both ends. The second vibration damping component 410 is provided on the second crossbeam 1222.

[0095] Reference Figure 5 In this embodiment of the invention, the second sub-frame 122 includes two vertical beams 1221 and two horizontal beams 1222 arranged opposite to each other. The two vertical beams 1221 and the two horizontal beams 1222 are connected end to end to form a frame structure, giving the second sub-frame 122 itself good rigidity and a simple structure that is easy to manufacture. Specifically, in this embodiment, the two vertical beams 1221 are arranged between the two longitudinal beams 112, and each vertical beam 1221 is perpendicularly connected to the longitudinal beam 112, so that the second sub-frame 122 is supported inside the horizontal frame 110. The second sub-frame 122 strengthens the rigidity of the horizontal frame 110 and prevents deformation of the horizontal frame 110.

[0096] Specifically, in this embodiment, the second crossbeam 1222 and the first subframe 121 are respectively provided with a second vibration damping component 410 to connect to the front end of the range extender 200.

[0097] In one embodiment, the second vibration damping component 410 includes:

[0098] The second bracket 411 is fixed to the second crossbeam 1222, and the second bracket 411 is provided with a second receiving groove.

[0099] The second elastic structure is disposed inside the second receiving slot; and

[0100] The second mounting component 412 has one end inserted into the interior of the second elastic structure, and the other end connected to the front end of the range extender 200.

[0101] Reference Figure 2 , Figure 5 as well as Figure 8 In this embodiment of the invention, the second vibration damping assembly 410 includes a second bracket 411, a second mounting member 412, and a second elastic structure. The second bracket 411 is fixed to the second crossbeam 1222 by bolts, welding, or other mechanical connections. The second mounting member 412 is connected to the front end of the range extender 200 by bolts, welding, or other mechanical connections. The second bracket 411 and the second mounting member 412 are made of materials such as iron alloy or aluminum alloy, possessing high strength and rigidity. The second elastic structure is an elastic element, such as a rubber bushing or spring, connecting the second bracket 411 and the second mounting member 412. It is responsible for absorbing and buffering vibrations and impacts during the operation of the range extender 200, thereby reducing the vibrations and impacts transmitted to the subframe 100, thus improving the vehicle's ride smoothness and comfort, enhancing NVH performance, and extending the service life of the range extender 200. The entire second vibration damping assembly 410 has a simple structure and is easy to manufacture. Specifically, the second bracket 411 is provided with a second receiving groove, and the second elastic structure is provided in the second receiving groove. One end of the second mounting member 412 is inserted into the second elastic structure, so that the second elastic structure wraps around the outside of the second mounting member 412. After the vibration of the range extender 200 is transmitted to the second mounting member 412 in different directions, it can be absorbed and buffered by the second elastic structure, which improves the vibration reduction effect of the second damping component 410, thereby further improving the ride smoothness and comfort of the vehicle.

[0102] In one embodiment, the third vibration damping component 420 includes:

[0103] The third bracket 421 is fixed to the longitudinal beam 112;

[0104] The third mounting component 422 connects to the side wall of the range extender 200; and

[0105] The third elastic structure 423 elastically connects the third bracket 421 and the third mounting component 422.

[0106] Reference Figure 6 In this embodiment of the invention, the third vibration damping assembly 420 includes a third bracket 421, a third mounting component 422, and a third elastic structure 423. The third bracket 421 is fixed to the longitudinal beam 112 by bolts, welding, or other mechanical connections. The third mounting component 422 is connected to the side wall of the range extender 200 by bolts, welding, or other mechanical connections. The third bracket 421 and the third mounting component 422 are made of materials such as iron alloy or aluminum alloy, possessing high strength and rigidity. The third elastic structure 423 is an elastic element, such as a rubber bushing or spring, connecting the third bracket 421 and the third mounting component 422. It is responsible for absorbing and buffering vibrations and impacts during the operation of the range extender 200, thereby reducing the vibrations and impacts transmitted to the subframe 100, improving the vehicle's ride smoothness and comfort, enhancing NVH performance, and extending the service life of the range extender 200. The entire third vibration damping assembly 420 has a simple structure and is easy to manufacture.

[0107] In one embodiment, the third elastic structure 423 is provided on the side of the longitudinal beam 112 away from the ground.

[0108] Reference Figure 6 In this embodiment of the present invention, the third elastic structure 423 is disposed on the side of the longitudinal beam 112 away from the ground, so that the longitudinal beam 112 of the subframe 100 supports the third bracket 421, the third elastic structure 423 and part of the third mounting component 422, so that the third elastic structure 423 can absorb and reduce the impact and vibration of the range extender 200 in the vertical direction, further improve the ride comfort and driving stability, and further extend the service life of the range extender 200.

[0109] Reference Figure 1 This utility model also proposes a vehicle, comprising:

[0110] The aforementioned powertrain; and

[0111] The frame is 500, and the powertrain is connected to the frame 500.

[0112] The specific structure of the powertrain is as described in the above embodiments. Since this vehicle adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be repeated here. In particular, by mounting multiple range extenders 200 on the same subframe 100, and the subframe 100 being connected to the main beam 500 through the first vibration damping device 300, the vibrations generated by the multiple range extenders 200 are coupled into a single vibration source at the subframe 100 level. This avoids the situation where two or more range extenders 200 resonate with the main beam 500 separately, reduces the number of vibration sources, thereby improving the ride smoothness and comfort of the vehicle, and thus improving the vehicle's NVH performance.

[0113] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A powertrain for use in a vehicle, the vehicle having a chassis, characterised by, The power assembly comprises: a subframe; a range extender, the range extender being provided with at least two and mounted on the subframe; and a first damping device, provided between the subframe and the girder, the subframe being connected with the girder through the first damping device.

2. The powertrain of claim 1, wherein, The power assembly further comprises a second damping device, the range extender being mounted on the subframe through the second damping device.

3. The powertrain of claim 1, wherein, The first damping device comprises a plurality of first damping components, the first damping components being provided on both sides of the subframe in the width direction, and the subframe being mounted on the girder through the plurality of first damping components.

4. The powertrain of claim 3, wherein, The first damping component comprises: a first support for connecting the girder; a first mounting member connected with the subframe; and a first elastic structure elastically connecting the first support and the first mounting member.

5. The powertrain of claim 4, wherein, The first support is provided with a first receiving groove, the first mounting member at least partially extends into the interior of the first receiving groove and has a gap with the inner wall of the first receiving groove, the first elastic structure is arranged in the gap and connects the inner wall of the first receiving groove and the outer wall of the first mounting member; and / or The first elastic structure is arranged on the side of the subframe facing the ground.

6. The powertrain of claim 2, wherein, The second damping device comprises: a second damping component provided at the front end of the range extender and connected with the subframe; and a third damping component, at least one third damping component being provided on both sides of the range extender in the width direction, and each third damping component being connected with the subframe.

7. The powertrain of claim 6, wherein, The subframe comprises: a transverse frame, the third damping component connecting the range extender and the transverse frame; and a vertical frame fixed to the transverse frame and extending along the height direction of the vehicle, the second damping component connecting the front end of the range extender and the vertical frame.

8. The powertrain of claim 7, wherein, The transverse frame comprises two first cross beams arranged oppositely and two longitudinal beams arranged oppositely, both ends of each first cross beam being connected with two longitudinal beams, and the third damping component being arranged on the longitudinal beam; The vertical frame comprises a first sub-frame and at least one second sub-frame, the first sub-frame being arranged on the first cross beam, and the second sub-frame being arranged between and connecting two longitudinal beams.

9. The powertrain of claim 8, wherein, The second sub-frame comprises: a vertical beam, two vertical beams being arranged oppositely and each vertical beam being connected perpendicularly with the longitudinal beam; and a second cross beam, two second cross beams being arranged oppositely, both ends of each second cross beam being connected with two vertical beams, and the second damping component being arranged on the second cross beam.

10. The powertrain of claim 9, wherein, The second damping component comprises: a second support fixed to the second cross beam, the second support being provided with a second receiving groove; a second elastic structure arranged in the interior of the second receiving groove; and a second mounting member, one end of the second mounting member being inserted into the interior of the second elastic structure, and the other end of the second mounting member being connected with the front end of the range extender.

11. The powertrain of claim 8, wherein, The third damping component comprises: a third support fixed to the longitudinal beam; a third mounting member connected with the side wall of the range extender; and a third elastic structure elastically connecting the third support and the third mounting member.

12. The powertrain of claim 11, wherein, The third elastic structure is arranged on the side of the longitudinal beam away from the ground.

13. A vehicle characterized by comprising: comprising: a powertrain as in any of claims 1 to 12; and a girder to which the powertrain is connected.

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