Electric drive system and vehicle

Abstract

The application provides an electric drive system and a vehicle. The electric drive system comprises a motor assembly, an electric control assembly and a sound insulation assembly. The electric control assembly is arranged on one side of the motor assembly. The electric control assembly comprises an electric control structure and an electric control shell, and the electric control structure is arranged in the electric control shell. The sound insulation assembly comprises a first sound absorption piece and an acoustic package. The first sound absorption piece is clamped between the motor assembly and the electric control assembly and fills the gap between the motor assembly and the electric control assembly. The acoustic package is arranged on the outer side of the electric control assembly and is fixedly connected with the electric control shell. In this way, the noise can be effectively reduced, and the user experience is improved.

Description

Technical Field

[0001] This application relates to the field of vehicle noise reduction, and more particularly to an electric drive system and vehicle. Background Technology

[0002] NVH (Noise, Vibration, and Harshness) comfort is crucial for user experience, brand image, and market competitiveness. NVH refers to a vehicle's noise, vibration, and harshness. Good NVH performance creates a quieter and smoother cabin environment, enhancing the driving experience. High-level NVH performance also strengthens a vehicle's sense of luxury and quality. Superior NVH performance has become a key factor in brand differentiation. In particular, NVH optimization of the vehicle's electric drive system is not only related to user satisfaction and health and safety, but also a significant reflection of brand competitiveness and technological strength.

[0003] When the electric drive system of some vehicles is running, the gear set of the reducer of the electric drive system makes a whistling sound, and the electromagnetic noise of the motor structure can be transmitted to the interior of the vehicle through the air and structure, resulting in greater interior noise and a poor user experience. Utility Model Content

[0004] This application provides an electric drive system and vehicle that can effectively reduce noise and improve the user experience.

[0005] This application provides an electric drive system, including a motor assembly, an electronic control assembly, and a sound insulation assembly; the electronic control assembly is disposed on one side of the motor assembly; the electronic control assembly includes an electronic control structure and an electronic control housing, the electronic control structure being disposed within the electronic control housing; the sound insulation assembly includes a first sound-absorbing element and an acoustic package;

[0006] The first sound-absorbing component is sandwiched between the motor assembly and the electronic control assembly, and fills the gap between the motor assembly and the electronic control assembly; the acoustic enclosure is disposed on the outside of the electronic control assembly and connected to the electronic control housing.

[0007] Furthermore, the first sound-absorbing component includes a sound-absorbing main body; the sound-absorbing main body includes a main structure, a first noise reduction part, and a second noise reduction part, the first noise reduction part and the second noise reduction part being respectively connected to opposite sides of the main structure; the thickness of the first noise reduction part and the second noise reduction part is greater than the thickness of the main structure;

[0008] The first noise reduction unit and the second noise reduction unit are arranged on both sides of the motor assembly in the radial direction of the motor assembly and fill the gap between the motor assembly and the electronic control assembly.

[0009] Furthermore, the thickness of the first noise reduction part is 7mm to 13mm; and / or

[0010] The thickness of the second noise reduction part is 7mm to 13mm.

[0011] Furthermore, the main structure is provided with a first hollow portion, which is located between the first noise reduction portion and the second noise reduction portion; the top of the motor assembly passes through the first hollow portion and protrudes outside the first sound-absorbing component.

[0012] Furthermore, the motor assembly is provided with a liquid inlet, and the electronic control assembly is provided with a liquid outlet, the liquid outlet of the electronic control assembly being connected to the liquid inlet of the motor assembly; the first noise reduction part is provided with a second hollowed-out part, the second hollowed-out part being disposed corresponding to the liquid inlet; and / or

[0013] The motor assembly is provided with a first mounting base, and the electronic control assembly is provided with a second mounting base. The first mounting base is connected to the second mounting base so that the motor assembly is connected to the electronic control assembly. The edge of the first noise reduction part or the main structure is provided with a third hollow part, which is provided corresponding to the first mounting base.

[0014] Furthermore, the electric drive system also includes a fixed bracket connected to the side wall of the motor assembly; the first sound-absorbing component includes a sound-absorbing main body and a positioning edge; the positioning edge is connected to the sound-absorbing main body and extends out of the motor assembly, and the positioning edge is clamped between the fixed bracket and the electronic control component.

[0015] Furthermore, the electric drive system also includes an adhesive assembly, which includes a first adhesive member connected to the motor assembly via the fixing bracket;

[0016] The fixing bracket includes a first part and a second part, the first part extending along a first direction, and the second part extending from the edge of the first part along a second direction perpendicular to the first direction; the first part is connected to the side wall of the motor assembly, and the first adhesive is connected to the second part.

[0017] Furthermore, the first sound-absorbing component is sound-absorbing cotton.

[0018] Furthermore, the acoustic package includes a soundproof enclosure and a second sound-absorbing component, the second sound-absorbing component being attached to the inner surface of the soundproof enclosure.

[0019] Furthermore, the soundproof enclosure is made of EPDM rubber; and / or

[0020] The second sound-absorbing component is sound-absorbing cotton.

[0021] Furthermore, the electric drive system also includes an adhesive assembly, which includes a first adhesive member and a second adhesive member. The first adhesive member is connected to the motor assembly, and the second adhesive member is connected to the soundproof cover and disposed on the outer side wall of the soundproof cover. The second adhesive member is engaged with the first adhesive member.

[0022] This application provides a vehicle including an electric drive system as described in any of the above embodiments.

[0023] The electric drive system provided in this application includes a sound insulation component. The sound insulation component comprises a first sound-absorbing element and an acoustic enclosure. The first sound-absorbing element is sandwiched between a motor assembly and an electronic control assembly, filling the gap between them to prevent noise leakage and thus reduce noise. The acoustic enclosure is located outside the electronic control assembly and is fixedly connected to its housing, isolating it from noise transmission. Therefore, the combination of the first sound-absorbing element and the acoustic enclosure more effectively reduces noise and improves the user experience.

[0024] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0026] Figure 1 The figure shown is a perspective view of an electric drive system according to an embodiment of this application;

[0027] Figure 2 As shown Figure 1 A three-dimensional schematic diagram of the electric drive system from another angle;

[0028] Figure 3 As shown Figure 1 The diagram shown is a three-dimensional representation of the electric drive system after the acoustic package has been removed.

[0029] Figure 4 As shown Figure 1 The diagram shown is a three-dimensional representation of the electric drive system after removing the acoustic package and electronic control components.

[0030] Figure 5 As shown Figure 1 A top view of the first sound-absorbing component of the electric drive system shown;

[0031] Figure 6 As shown Figure 1 A three-dimensional schematic diagram of the acoustic package of the electric drive system shown. Detailed Implementation

[0032] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0033] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, the technical or scientific terms used in this application should be understood in their ordinary sense by one of ordinary skill in the art to which this application pertains. The use of words such as “a” or “one” in this specification and claims does not indicate a limitation of quantity, but rather indicates the presence of at least one. The use of words such as “comprising” or “including” means that the element or object preceding “comprising” or “including” encompasses the element or object listed following “comprising” or “including” and its equivalents, and does not exclude other elements or objects. The use of words such as “connected” or “linked” is not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect. The singular forms “a,” “the,” and “the” used in this specification and appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0034] To better understand the technical solution of this application, the electric drive system and vehicle of this application will be described in detail below with reference to the accompanying drawings. Unless otherwise specified, the features of the following embodiments and implementation methods can be combined with each other.

[0035] See Figure 1 , Figure 2 and Figure 3As shown, this application provides an electric drive system 10, which includes a motor assembly 11, an electronic control assembly 12, and a sound insulation assembly 13. The motor assembly 11 and the electronic control assembly 12 can also be designed as separate units. The electronic control assembly 12 is located on one side of the motor assembly 11. The electronic control assembly 12 can be located on one side of the motor assembly 11 in its radial direction. In one embodiment, the electric drive system 10 further includes a reducer 14, which is located on one side of the motor assembly 11 in its axial direction. The reducer 14 includes a reducer housing 34 and a gear set, which is located within the reducer housing 34. The motor assembly 11 is connected to the gear set and drives the gear set to rotate. The electronic control assembly 12 can be located above the motor assembly 11 and the reducer 14. The electronic control assembly 12 includes an electronic control structure and an electronic control housing 15, which is located within the electronic control housing 15 and serves to protect the electronic control structure. In one embodiment, the electronic control housing 15 includes an electronic control cover 18 and an electronic control base 19. The electronic control cover 18 is connected to the electronic control base 19 and can be detachably connected to the electronic control base 19. The electronic control structure is disposed within the space formed by the electronic control cover 18 and the electronic control base 19. The sound insulation component 13 includes a first sound-absorbing element 16 and an acoustic package 17.

[0036] The first sound-absorbing component 16 is sandwiched between the motor assembly 11 and the electronic control assembly 12, and fills the gap between them. In one embodiment, the first sound-absorbing component 16 is sound-absorbing cotton. The sound-absorbing cotton may include a sound-absorbing body and two pieces of non-woven fabric, with the sound-absorbing body sandwiched between the two pieces of non-woven fabric, and the edges of the sound-absorbing cotton are edged with high-temperature plastic molding. In this embodiment, during the assembly of the electric drive system 10, the reducer 14 can be installed on one side of the motor assembly 11 first, then the first sound-absorbing component 16 can be installed above the motor assembly 11, and finally the electronic control assembly 12 can be installed above the first sound-absorbing component 16.

[0037] The acoustic package 17 covers the outside of the electronic control assembly 12 and is connected to the electronic control housing 15. The acoustic package 17 is detachably connected to the electronic control housing 15. "The acoustic package 17 covers the outside of the electronic control assembly 12" means that the acoustic package 17 covers the outside of the electronic control housing 15. In one embodiment, the electric drive system 10 includes a first connector 20 and a second connector 21. The first connector 20 can pass through the top wall of the acoustic package 17 and connect to the electronic control cover 18. The first connector 20 can be a screw, such as an M4 screw. The second connector 21 can pass through the side wall of the acoustic package 17 and connect to the side wall of the electronic control base 19. The second connector 21 can be a screw, such as an M6 screw. Thus, the acoustic package 17 can be connected to the electronic control housing 15 via the first connector 20 and the second connector 21. In this embodiment, there are 6 first connectors 20 and 1 second connector 21, resulting in a more secure installation.

[0038] The electric drive system 10 provided in this application includes a sound insulation component 13, which includes a first sound-absorbing element 16 and an acoustic package 17. The first sound-absorbing element 16 is sandwiched between the motor assembly 11 and the electronic control assembly 12, and fills the gap between them. Since the gap between the motor assembly 11 and the electronic control assembly 12 amplifies noise, this arrangement prevents noise leakage from the gap, thereby reducing noise. The acoustic package 17 covers the outside of the electronic control assembly 12 and is connected to the electronic control housing 15. The electronic control cover 18 amplifies noise, and this arrangement isolates noise transmission from the electronic control assembly 12 to the outside. Simultaneously, the combination of the first sound-absorbing element 16 and the acoustic package 17 more effectively reduces noise and improves the user experience.

[0039] See Figure 4 and Figure 5 As shown, in one embodiment, the first sound-absorbing component 16 includes a sound-absorbing main body 22. The sound-absorbing main body 22 includes a main structure 23, a first noise-reducing part 24, and a second noise-reducing part 25, which are respectively connected to opposite sides of the main structure 23. The thickness of the first noise-reducing part 24 and the second noise-reducing part 25 is greater than the thickness of the main structure 23. In one embodiment, the thickness of the first noise-reducing part 24 is 7mm to 13mm. In another embodiment, the thickness of the second noise-reducing part 25 is 7mm to 13mm. Thus, the thickness of the first noise-reducing part 24 and the second noise-reducing part 25 is more suitable. In this embodiment, the initial thickness of the first sound-absorbing component 16 can be 20mm, and the thickness of the first noise-reducing part 24 and the second noise-reducing part 25 after processing can both be 10mm, and the thickness of the main structure 23 can be 1mm. The edges of the main structure 23, the first noise-reducing part 24, and the second noise-reducing part 25 can be made with high-temperature plastic edging.

[0040] The first noise reduction part 24 and the second noise reduction part 25 are arranged on both sides of the motor assembly 11 in the radial direction and fill the gap between the motor assembly 11 and the electronic control assembly 12. The motor assembly 11 includes a motor structure and a motor housing 26 extending circumferentially along the motor structure, with the motor structure disposed within the motor housing 26. The motor housing 26 serves to protect the motor structure. Due to the annular extension of the motor housing 26, there will be gaps between the motor housing 26 and the electronic control assembly 12 on both sides in the radial direction. The relatively thick thickness of the first noise reduction part 24 and the second noise reduction part 25 allows them to fill the gaps between the motor assembly 11 and the electronic control assembly 12, preventing noise leakage from the motor assembly 11 in the radial direction. The main body structure 23 can fit against the surface of the motor housing 26, and the main body structure 23 can be designed according to the shape of the motor housing 26, thus ensuring the assembly accuracy between the motor assembly 11 and the electronic control assembly 12.

[0041] In one embodiment, the main structure 23 has a first hollow portion 27, which is located between the first noise reduction portion 24 and the second noise reduction portion 25. The top of the motor assembly 11 passes through the first hollow portion 27 and protrudes outside the first sound-absorbing member 16. The first hollow portion 27 can be designed according to the shape of the motor housing 26. In this way, while ensuring the assembly accuracy between the motor assembly 11 and the electronic control assembly 12, noise can be conducted within the area of ​​the first hollow portion 27 and the noise amplitude can be reduced by the first sound-absorbing member 16.

[0042] In one embodiment, the motor assembly 11 has a liquid inlet 28, and the electronic control assembly 12 has a liquid outlet, with the liquid outlet of the electronic control assembly 12 connected to the liquid inlet 28 of the motor assembly 11. The first noise reduction part 24 has a second hollow part 29, which can be square or circular in shape. The second hollow part 29 is provided corresponding to the liquid inlet 28. The second hollow part 29 can avoid the liquid inlet 28 and the liquid outlet, and can also serve a positioning function.

[0043] In one embodiment, the motor assembly 11 is provided with a first mounting base 30, and the electronic control assembly 12 is provided with a second mounting base. The first mounting base 30 is connected to the second mounting base so that the motor assembly 11 is connected to the electronic control assembly 12. The first mounting base 30 can be connected to the second mounting base by screws. The edge of the first noise reduction part 24 or the main body structure 23 is provided with a third cutout part 31, which is provided corresponding to the first mounting base 30. The third cutout part 31 can be designed according to the shape of the motor housing 26, can avoid the first mounting base 30 and the second mounting base, and can also play a positioning role.

[0044] In one embodiment, the electric drive system 10 further includes a fixing bracket 32 ​​connected to the side wall of the motor assembly 11, and the fixing bracket 32 ​​can be connected to the side wall of the motor housing 26. The first sound-absorbing member 16 includes a positioning edge 33, the thickness of which can be the same as or different from the thickness of the sound-absorbing main body 22. In this embodiment, the thickness of the positioning edge 33 is 1 mm. The positioning edge 33 is connected to the sound-absorbing main body 22 and extends beyond the motor assembly 11, and is clamped between the fixing bracket 32 ​​and the electronic control assembly 12. The positioning edge 33 serves a positioning function.

[0045] In one embodiment, the electric drive system 10 further includes an adhesive assembly 35, which includes a first adhesive member 36 connected to the motor assembly 11 via a fixing bracket 32. The fixing bracket 32 ​​includes a first portion 37 and a second portion 38 (e.g., ...). Figure 1As shown, a first portion 37 extends along a first direction, and a second portion 38 extends from the edge of the first portion 37 along a second direction perpendicular to the first direction. The first portion 37 is connected to the side wall of the motor assembly 11, and the first portion 37 can be connected to the side wall of the motor assembly 11 by screws. A first adhesive member 36 is connected to the second portion 38. The first adhesive member 36 can be connected to the second portion 38 by screws. This method of fixing the first adhesive member 36 is simple. The number of first adhesive members 36 can be at least two, and the positioning edge 33 can be located between two adjacent first adhesive members 36.

[0046] In this embodiment, when the rotor of the motor structure of the motor assembly 11 is running, power is transmitted to the gear set in the reducer 14 and transmitted to the motor housing 26 and the reducer housing 34 through vibration. Thus, noise radiates from both sides of the motor housing 26 in the radial direction to the outside of the electric drive system 10. The electric drive system 10 of this application includes a sound insulation component 13, which includes a first sound-absorbing component 16. The first sound-absorbing component 16 is sandwiched between the motor assembly 11 and the electronic control component 12 and fills the gap between them. Noise can be contained between the motor assembly 11 and the electronic control component 12 for conduction, and absorbed by the first sound-absorbing component 16, thereby reducing the noise amplitude. Actual measurements of the electric drive system 10 on an EOL test bench show that, in a specific frequency band, both the electromagnetic noise of the motor structure of the motor assembly 11 and the gear set whine of the reducer 14 are optimized to varying degrees, with the maximum noise optimization amplitude exceeding 10 dB. Meanwhile, thanks to the optimization of component-level NVH performance, the comfort inside the vehicle has been significantly improved.

[0047] See Figure 4 and Figure 6 As shown, in one embodiment, the acoustic package 17 includes a soundproof enclosure 39 and a second sound-absorbing element. In one embodiment, the soundproof enclosure 39 is made of ethylene propylene diene monomer (EPDM). In another embodiment, the second sound-absorbing element is sound-absorbing cotton. The second sound-absorbing element is attached to the inner surface of the soundproof enclosure 39, and can be bonded to the inner surface of the soundproof enclosure 39 using hot melt adhesive. The second sound-absorbing element can completely cover the inner surface of the soundproof enclosure 39. Alternatively, two pieces of sound-absorbing cotton can be attached to the inner surface of the soundproof enclosure 39. This method effectively reduces noise.

[0048] In one embodiment, the adhesive assembly 35 includes a second adhesive member 40. A first adhesive member 36 is connected to the motor assembly 11, and the second adhesive member 40 is connected to the soundproof enclosure 39 and disposed on the outer side wall of the soundproof enclosure 39. The second adhesive member 40 can be attached to the soundproof enclosure 39 using a rivet. The second adhesive member 40 mates with the first adhesive member 36. The first adhesive member 36 and the second adhesive member 40 can be Velcro, allowing the rough side of the first adhesive member 36 to be adhered to the adhesive side of the second adhesive member 40 to securely fasten the acoustic package 17 and the electronic control assembly 12.

[0049] In this embodiment, the acoustic enclosure 17 is disposed on the outside of the electronic control component 12 and connected to the electronic control housing 15, which has the following advantages:

[0050] 1) Subjective evaluation of in-vehicle NVH performance, that is, the reviewers conducted actual vehicle tests and subjectively scored the noise, vibration and acoustic roughness. Compared with the electric drive system 10 without acoustic package 17, there is a score increase of 0.5 points.

[0051] 2) Based on objective noise test data during vehicle coasting and acceleration, compared to the electric drive system 10 without acoustic package 17, under vehicle coasting conditions, when the motor structure's speed is in the range of 2000rpm to 2400rpm, the noise generated by the 24th-order electromagnetic excitation can be reduced by 12dB. Under vehicle coasting conditions, when the motor structure's speed is in the range of 1000rpm to 1400rpm, the noise generated by the 35th-order electromagnetic excitation can be reduced by 11dB. Under vehicle acceleration conditions, when the motor structure's speed is in the range of 1600rpm to 2500rpm, the noise generated by the 24th-order electromagnetic excitation can be reduced by 5dB. Under vehicle acceleration conditions, when the motor structure's speed is in the range of 900rpm to 1200rpm, the noise generated by the 35th-order electromagnetic excitation can be reduced by 10dB. It can be seen that the noise under vehicle coasting conditions can be reduced by at least 11dB, and the noise under vehicle acceleration conditions can be reduced by at least 5dB.

[0052] 3) The acoustic package 17 in this embodiment weighs approximately 700g, which is three-quarters lighter and two-thirds cheaper than the fully enclosed electric drive system 10. This allows the acoustic package 17 in this embodiment to significantly reduce weight and implementation cost while maintaining noise reduction performance.

[0053] 4) Actual vehicle testing confirmed that the acoustic package 17 in this embodiment has little impact on the heat dissipation of the electric drive system 10, thus ensuring the heat dissipation performance of the electric drive system 10.

[0054] In this embodiment, the first sound-absorbing component 16 is clamped between the motor assembly 11 and the electronic control assembly 12, and fills the gap between them. The acoustic package 17 is placed over the outside of the electronic control assembly 12 and connected to the electronic control housing 15. Thus, without the need for additional tooling, and with a lighter weight and lower cost, NVH performance can be optimized along the sound radiation transmission path to improve the NVH quality of the electric drive system 10 and the comfort of the vehicle interior, maximizing benefits. At the same time, this arrangement has little impact on the power and heat dissipation of the electric drive system 10 and does not affect the vehicle chassis assembly.

[0055] This application provides a vehicle, which can be a new energy vehicle. The vehicle includes an electric drive system. It should be noted that the description of the electric drive system in the above embodiments and implementations also applies to the vehicle in the embodiments of this application.

[0056] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. An electric drive system, characterized in that, It includes a motor assembly, an electronic control assembly, and a sound insulation assembly; the electronic control assembly is disposed on one side of the motor assembly; the electronic control assembly includes an electronic control structure and an electronic control housing, the electronic control structure being disposed within the electronic control housing; the sound insulation assembly includes a first sound-absorbing element and an acoustic package; The first sound-absorbing component is sandwiched between the motor assembly and the electronic control assembly, and fills the gap between the motor assembly and the electronic control assembly; the acoustic enclosure is disposed on the outside of the electronic control assembly and connected to the electronic control housing.

2. The electric drive system according to claim 1, characterized in that, The first sound-absorbing component includes a sound-absorbing main body; the sound-absorbing main body includes a main structure, a first noise reduction part, and a second noise reduction part, the first noise reduction part and the second noise reduction part being respectively connected to opposite sides of the main structure; the thickness of the first noise reduction part and the second noise reduction part is greater than the thickness of the main structure; The first noise reduction unit and the second noise reduction unit are arranged on both sides of the motor assembly in the radial direction of the motor assembly and fill the gap between the motor assembly and the electronic control assembly.

3. The electric drive system according to claim 2, characterized in that, The thickness of the first noise reduction part is 7mm to 13mm; and / or The thickness of the second noise reduction part is 7mm to 13mm.

4. The electric drive system according to claim 2, characterized in that, The main structure has a first hollow section, which is located between the first noise reduction section and the second noise reduction section; the top of the motor assembly passes through the first hollow section and protrudes outside the first sound-absorbing component.

5. The electric drive system according to claim 2, characterized in that, The motor assembly has a liquid inlet, and the electronic control assembly has a liquid outlet, with the liquid outlet of the electronic control assembly connected to the liquid inlet of the motor assembly; the first noise reduction part has a second hollowed-out part, which is positioned corresponding to the liquid inlet; and / or The motor assembly is provided with a first mounting base, and the electronic control assembly is provided with a second mounting base. The first mounting base is connected to the second mounting base so that the motor assembly is connected to the electronic control assembly. The edge of the first noise reduction part or the main structure is provided with a third hollow part, which is provided corresponding to the first mounting base.

6. The electric drive system according to claim 1, characterized in that, The electric drive system further includes a fixed bracket connected to the side wall of the motor assembly; the first sound-absorbing component includes a sound-absorbing main body and a positioning edge; the positioning edge is connected to the sound-absorbing main body and extends out of the motor assembly, and the positioning edge is clamped between the fixed bracket and the electronic control component.

7. The electric drive system according to claim 6, characterized in that, The electric drive system further includes an adhesive assembly, which includes a first adhesive member connected to the motor assembly via the fixing bracket. The fixing bracket includes a first part and a second part, the first part extending along a first direction, and the second part extending from the edge of the first part along a second direction perpendicular to the first direction; The first part is connected to the side wall of the motor assembly, and the first adhesive is connected to the second part.

8. The electric drive system according to claim 1, characterized in that, The first sound-absorbing component is sound-absorbing cotton.

9. The electric drive system according to claim 1, characterized in that, The acoustic package includes a soundproof enclosure and a second sound-absorbing component, the second sound-absorbing component being attached to the inner surface of the soundproof enclosure.

10. The electric drive system according to claim 9, characterized in that, The soundproof enclosure is made of EPDM rubber; and / or The second sound-absorbing component is sound-absorbing cotton.

11. The electric drive system according to claim 9, characterized in that, The electric drive system further includes an adhesive assembly, which includes a first adhesive member and a second adhesive member. The first adhesive member is connected to the motor assembly, and the second adhesive member is connected to the soundproof enclosure and disposed on the outer side wall of the soundproof enclosure. The second adhesive component is connected to the first adhesive component.

12. A vehicle, characterized in that, Includes the electric drive system as described in any one of claims 1-11.

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