Vibration isolation system and vehicle

Abstract

The utility model relates to a vibration isolation system and a vehicle, and relates to the technical field of automobiles. The vibration isolation system comprises an electric drive shell, a vibration isolation object, at least one connecting piece and at least one vibration isolation mechanism. The vibration isolation object comprises at least one mounting hole. And the at least one connecting piece is correspondingly arranged in the at least one mounting hole in a penetrating manner and is connected with the electric drive shell. And the at least one vibration isolation mechanism is correspondingly arranged between the at least one connecting piece and the at least one mounting hole. Therefore, the vibration isolation effect of the vibration isolation system can be improved, and the NVH performance of an automobile is improved; in addition, the vibration isolation mechanism is small in mass, so that the vibration isolation system is light in weight.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile, especially relates to a vibration isolation system and vehicle. BACKGROUND

[0002] In the all-in-one electric drive system, the motor and the reducer are integrated together to form an electric drive. The vibration excitation of the motor and the reducer will be transmitted to the structure (for example, a control housing) connected with the electric drive, so that the noise caused by the vibration is radiated to the surrounding air. Especially when the surface area of the structure connected with the electric drive is large, the noise caused by the vibration is also radiated to the surrounding air. Moreover, when the noise caused by the vibration is transmitted to the vehicle, it will affect the user experience of the driver and the passenger. The existing solutions generally increase damping materials on the surface of the structure connected with the electric drive to suppress the vibration, or wrap acoustic materials on the surface of the structure connected with the electric drive to isolate the propagation of the noise, so that the weight of the structure connected with the electric drive is large.

[0003] CN220553890U discloses a vibration and noise reduction motor rotary variable structure cover plate structure, which comprises a rotary variable structure cover plate and a damping composite structure attached to the surface of the rotary variable structure cover plate. The damping composite structure comprises at least one steel plate. Preferably, the damping composite structure comprises one steel plate, which is attached to the rotary variable structure cover plate by pressure-sensitive adhesive. Further, the damping composite structure comprises at least two steel plates, which are attached to the rotary variable structure cover plate layer by layer. Furthermore, the adjacent two steel plates are attached by damping glue, and the damping composite structure and the rotary variable structure cover plate are attached by pressure-sensitive adhesive. The above-mentioned damping composite structure is applied to the rotary variable structure cover plate, which is not conducive to the lightweight of the rotary variable structure cover plate. SUMMARY

[0004] The utility model discloses a kind of vibration isolation systems, vehicles to at least solve the technical problem of heavy weight of vibration isolation mode used in relevant technology.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0006] According to the first aspect of the present application, a vibration isolation system is provided, comprising: an electric drive housing, a vibration isolation object, at least one connecting piece, and at least one vibration isolation mechanism. The vibration isolation object includes at least one mounting hole. The at least one connecting piece is correspondingly arranged in the at least one mounting hole and connected with the electric drive housing. The at least one vibration isolation mechanism is correspondingly arranged between the at least one connecting piece and the at least one mounting hole.

[0007] According to the technical means, when the electric drive structure is working, the motor and the speed reducer in the electric drive structure generate vibration excitation, and the vibration is transmitted to the vibration isolation object through the electric drive shell, the connecting piece and the vibration isolation mechanism. Due to the vibration isolation effect of the vibration isolation mechanism, the vibration amplitude is attenuated when the vibration passes through the vibration isolation mechanism, so that the vibration is reduced when transmitted to the vibration isolation object, and the noise radiated to the surrounding air by the vibration isolation object is reduced. Moreover, the vibration isolation mechanism has a small size, so that the vibration isolation system is lightweight.

[0008] In a possible implementation, the vibration isolation mechanism is arranged in the mounting hole and surrounds the connecting piece. The side surface of the vibration isolation mechanism is fixed to the hole wall of the mounting hole.

[0009] According to the technical means, the vibration isolation mechanism can block the vibration excitation from each direction around the connecting piece, so that the vibration of the vibration isolation object is reduced.

[0010] In a possible implementation, the electric drive shell comprises at least one first connecting part. The at least one connecting piece is connected to the at least one first connecting part in correspondence. The connecting piece comprises a head part and a rod part connected to each other. The vibration isolation mechanism comprises a first tubular part, a second tubular part and a third tubular part arranged in sequence in a direction away from the hole wall of the mounting hole. The connecting piece is arranged in the third tubular part.

[0011] The one end surface of the third tubular part abuts against the head part of the connecting piece, and the other end surface of the third tubular part abuts against the first connecting part.

[0012] According to the technical means, the vibration isolation object and the electric drive shell can be connected and fastened more firmly.

[0013] In a possible implementation, the material of the second tubular part comprises a damping material.

[0014] According to the technical means, the vibration amplitude transmitted to the vibration isolation object can be greatly attenuated.

[0015] In a possible implementation, the size of the second tubular part in the first direction is smaller than the size of the third tubular part in the first direction. The first direction is the extension direction of the vibration isolation mechanism.

[0016] According to the technical means, the vibration isolation mechanism can be reduced in abrasion.

[0017] In a possible implementation, in the first direction, the end surface of the second tubular part close to the head part of the connecting piece has a spacing with the head part of the connecting piece. In the first direction, the end surface of the second tubular part close to the first connecting part has a spacing with the first connecting part.

[0018] According to the technical means, the vibration isolation mechanism can effectively absorb and disperse vibration changes, and improve the vibration isolation effect.

[0019] In a possible implementation, the size of the first tubular part along the first direction is greater than or equal to the size of the second tubular part along the first direction, and less than or equal to the size of the third tubular part along the first direction. The first direction is the extension direction of the vibration isolation mechanism.

[0020] According to the technical means, the contact area of the first tubular part and the mounting hole can be increased, and the loosening of the vibration isolation mechanism during vibration can be prevented.

[0021] In a possible implementation, the rod part of the connecting part is threadedly connected with the first connecting part. A gap is arranged between the third tubular part and the rod part of the connecting part.

[0022] According to the technical means, the connecting part and the first connecting part can be conveniently installed.

[0023] In a possible implementation, the vibration isolation object includes a first shell, at least one second connecting part, and at least one support plate. The at least one second connecting part is fixed to the first shell. The second connecting part includes a mounting hole. The at least one support plate is connected between the second connecting part and the first shell.

[0024] According to the technical means, the connection between the connecting part and the vibration isolation object can be fastened, so that the vibration isolation object can remain stable when subjected to external vibration or impact, and the transmission of vibration can be reduced.

[0025] In a possible implementation, the electric drive shell includes a second shell and a support structure. The support structure is fixed to the second shell. One or more first connecting parts are fixed to the support structure.

[0026] According to the technical means, the first connecting part can be arranged flexibly, which is beneficial to the reliability of the first connecting part and improves the stability of the vibration isolation system.

[0027] In a possible implementation, the number of mounting holes is greater than or equal to 1 and less than or equal to 6. The number of connecting parts is greater than or equal to 1 and less than or equal to 6. The number of vibration isolation mechanisms is greater than or equal to 1 and less than or equal to 6.

[0028] According to the technical means, the vibration isolation effect of the vibration isolation system can be improved on the basis of ensuring the connection firmness.

[0029] According to the second aspect, a vehicle is provided, which includes the vibration isolation system and the electric drive structure in any of the possible implementations, and the electric drive structure is arranged in the inner cavity of the electric drive shell.

[0030] The utility model discloses the beneficial effect of:

[0031] (1) the application provides a vibration isolation system, and the connecting piece is arranged in the mounting hole, and is connected with the electric drive shell and the vibration isolation object, can make the vibration isolation object and the electric drive shell have better positioning, make the vibration isolation object can be stably connected on the electric drive shell, and the vibration isolation mechanism is located between the connecting piece and the mounting hole, and the vibration isolation mechanism includes damping material, and the electric drive shell and the vibration isolation object are soft connection, can absorb and reduce the vibration and noise from the electric drive shell to the vibration isolation object, make the vibration and noise when passing through the vibration isolation mechanism vibration amplitude will be attenuated, and then make the vibration and noise that the vibration isolation system is passed to the vibration isolation object and the vibration and noise that the vibration isolation object radiates to the surrounding air will reduce, thereby the NVH performance of car is promoted, and the more comfortable driving experience is brought.

[0032] (2) the vibration isolation mechanism in the vibration isolation system provided by the application is small in size, low in cost, light in weight.

[0033] It should be noted that the technical effects brought by the second aspect implementation mode can be referred to the technical effects brought by the corresponding implementation mode in the first aspect, which will not be repeated here.

[0034] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0035] The drawings incorporated into the specification and forming part of the specification, show the embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application, and do not constitute undue limitation on the present application.

[0036] Figure 1 A top view of a vibration isolation system shown as an exemplary embodiment;

[0037] Figure 2 An explosion view of a vibration isolation system shown as an exemplary embodiment;

[0038] Figure 3 An explosion view of a vibration isolation object shown as an exemplary embodiment;

[0039] Figure 4 A partial sectional view of a vibration isolation system shown as an exemplary embodiment;

[0040] Figure 5 An implementation effect diagram of a vibration isolation system shown as an exemplary embodiment.

[0041] In the figure, 10 is a vibration isolation object, 11 is a mounting hole, 12 is a first shell, 13 is a second connecting part, 14 is a support plate, 20 is an electric drive shell, 21 is a first connecting part, 22 is a second shell, 23 is a support structure, 30 is a connecting piece, 31 is a head of the connecting piece, 32 is a rod of the connecting piece, 40 is a vibration isolation mechanism, 41 is a first tubular piece, 42 is a second tubular piece, and 43 is a third tubular piece. DETAILED DESCRIPTION

[0042] In order for those skilled in the art to better understand the technical solutions of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings.

[0043] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0044] The NVH performance of a vehicle refers to the comprehensive performance of noise, vibration, and harshness, and is a key indicator of the quality of automobile manufacturing. The NVH performance directly affects the user's driving experience.

[0045] In some embodiments of the present disclosure, a vehicle is provided, comprising a vibration isolation system and an electric drive structure. The electric drive structure is arranged in the inner cavity of the electric drive shell.

[0046] In some embodiments, the vehicle further comprises a control device. The control device is arranged in the inner cavity of the vibration reduction object.

[0047] In the vehicle, the electric drive structure is the core of the electric vehicle, which converts electrical energy into mechanical energy to drive the vehicle forward. The electric drive structure is usually composed of a motor and a speed reducer. The motor and the speed reducer work together to achieve efficient conversion of electrical energy and power transmission.

[0048] The above-mentioned electric drive structure is usually connected with a control device. The control device mainly controls the operation of the electric drive structure, receives instructions from the vehicle controller, such as acceleration, deceleration, braking, etc., and sends corresponding control signals to the motor to drive the vehicle to travel. Arranging the control device in the inner cavity of the vibration reduction object can reduce the influence of vibration and impact on the control device during vehicle travel.

[0049] The main purpose of the vibration isolation system is to reduce or eliminate the influence of vibration on the vehicle and its internal components, thereby improving the NVH performance of the automobile. In a multi-in-one electric drive system, the motor, reduction device and control device are integrated together. This highly integrated design makes the vibration excitation of the motor and reduction device transmitted to the control device. Since the control device is a precision electronic equipment sensitive to mechanical vibration, this vibration transmission may affect its performance and service life.

[0050] To solve this problem, it is necessary to optimize the vibration isolation system to reduce the transmission of vibration energy and assembly radiation noise. For example, the influence of vibration on the controller can be reduced by vibration isolation design of the isolation object (such as the shell of the control device) or optimization of the vibration characteristics of the motor and reduction device. In the existing technology, the influence of vibration on the isolation object is reduced by installing a bracket structure on the isolation object, but the installation of the bracket is only applicable to the scenario where the isolation object and the electric drive structure are separate, and the installation of the bracket is not conducive to low cost and lightweight control.

[0051] Based on this, as Figures 1-4 shown, some embodiments of the present application provide a vibration isolation system, which includes an electric drive shell 20, a vibration isolation object 10, at least one connecting piece 30 and at least one vibration isolation mechanism 40.

[0052] The vibration isolation object 10 includes at least one mounting hole 11. The at least one connecting piece 30 is correspondingly arranged in the at least one mounting hole 11 and connected with the electric drive shell 20. And the at least one vibration isolation mechanism 40 is correspondingly arranged between the at least one connecting piece 30 and the at least one mounting hole 11.

[0053] As for the connection mode of the connecting piece and the electric drive shell 20, it is not limited here, for example, it can be any one of buckle connection, tin soldering, rivet, bolt.

[0054] As for the shape of the mounting hole 11, it is not limited here, for example, as Figure 3 shown, it can be a round hole.

[0055] It can be understood that the connecting piece 30 is arranged in the mounting hole 11 and connects the electric drive shell 20 and the vibration isolation object 10, which can make better positioning between the vibration isolation object 10 and the electric drive shell 20, so that the vibration isolation object 10 can be stably connected to the electric drive shell 20. The vibration isolation mechanism 40 is located between the connecting piece 30 and the mounting hole 11, which can absorb and reduce the vibration and noise transmitted from the electric drive shell 20 to the vibration isolation object 10.

[0056] That is, through the above setting, when the electric drive structure is working, the motor and the speed reducer inside the electric drive structure will generate vibration excitation, the vibration will be transmitted to the electric drive shell 20, then to the connecting piece 30, and then through the vibration isolation mechanism 40, and finally to the vibration isolation object 10; due to the vibration isolation effect of the vibration isolation mechanism 40, the vibration amplitude will be attenuated when passing through the vibration isolation mechanism 40, so that the vibration transmitted to the vibration isolation object 10 will be reduced, and the vibration and noise radiated to the surrounding air by the vibration isolation object 10 will be reduced, thereby improving the NVH performance of the automobile and bringing a more comfortable driving experience; and the vibration isolation mechanism 40 has small size and low cost, so that the vibration isolation system is lightweight.

[0057] In some embodiments, the noise sound pressure levels of vehicles provided with the vibration isolation system described in some embodiments of the present application and vehicles not provided with the vibration isolation system are tested at different motor speeds, and the test results are as shown in Figure 5 From Figure 5 it can be concluded that, at the same motor speed, the noise sound pressure level of the vehicle provided with the vibration isolation system is significantly lower than that of the vehicle not provided with the vibration isolation system (original state in the figure), which shows that the vibration isolation effect of the vehicle including the vibration isolation system is good.

[0058] In some embodiments, as shown in Figure 4 the vibration isolation mechanism 40 is arranged in the mounting hole 11 and surrounds the connecting piece 30. The side surface of the vibration isolation mechanism 40 is fixed to the hole wall of the mounting hole 11.

[0059] The way in which the side surface of the vibration isolation mechanism 40 is fixed to the hole wall of the mounting hole 11 is not limited here, for example, it can be any one of welding, clamps or interference fit connection.

[0060] Through the above setting, the vibration isolation mechanism 40 and the mounting hole 11 are fixedly connected, the vibration isolation mechanism 40 is embedded in the vibration isolation object 10, and the vibration isolation mechanism 40 surrounds the connecting piece 30, so that when the vibration excitation is transmitted to the connecting piece 30 and then to the vibration isolation object 10, the vibration isolation mechanism 40 can block the vibration from each direction of the connecting piece 30, so that the vibration transmitted to the vibration isolation object 10 is reduced.

[0061] In some embodiments, as shown in Figure 2 and Figure 4 the electric drive shell 20 includes at least one first connecting part 21. The at least one connecting piece 30 is connected to the at least one first connecting part 21 correspondingly.

[0062] The connecting member 30 comprises a head 31 and a stem 32. The vibration isolation mechanism 40 comprises a first tubular member 41, a second tubular member 42 and a third tubular member 43 arranged in sequence along a direction away from the hole wall of the mounting hole 11. The connecting member 30 is arranged through the third tubular member 43.

[0063] The one end surface of the third tubular member 43 abuts against the head of the connecting member 30, and the other end surface of the third tubular member 43 abuts against the first connecting portion 21.

[0064] With the above arrangement, the at least one first connecting portion 21 on the electric drive shell 20 provides a fixed position for the connecting member 30, so that a stable connection between the electric drive shell 20 and the vibration isolation object 10 is established. The connecting member 30 is arranged through the third tubular member 43 and connected with the first connecting portion 21. The one end surface of the third tubular member 43 abuts against the head of the connecting member 30, and the other end surface of the third tubular member 43 abuts against the first connecting portion 21, so that the vibration isolation mechanism 40 can be limited between the connecting member 30 and the first connecting portion 21, and the connection stability between the vibration isolation object 10 and the electric drive shell 20 is increased.

[0065] In some embodiments, the material of the second tubular member 42 comprises a damping material.

[0066] For example, the damping material can be rubber.

[0067] With the above arrangement, the damping material can effectively absorb and disperse the vibration when the vibration passes through the vibration isolation mechanism 40, so that the vibration amplitude is greatly attenuated, thereby reducing the vibration transmitted to the vibration isolation object 10.

[0068] In some embodiments, as shown in Figure 4 The dimension of the second tubular member 42 along the first direction Y is smaller than the dimension of the third tubular member 43 along the first direction Y. The first direction Y is the extension direction of the vibration isolation mechanism 40.

[0069] With the above arrangement, the second tubular member 42 is relatively shorter than the third tubular member 43, so that the second tubular member 42 can at least not contact one of the vibration isolation mechanism 40 and the vibration isolation object 10. On the one hand, it can prevent the second tubular member 42 from being worn during vibration. On the other hand, it can prevent the first connecting portion 21 or the connecting member 30 from affecting the deformation of the damping material.

[0070] The longer third tubular member 43 can provide more uniform force distribution and larger support area, thereby reducing the wear and deformation of the vibration isolation mechanism 40.

[0071] In some embodiments, as shown in Figure 4As shown, the end face of the second tubular member 42 close to the head 31 of the connecting member 30 has a spacing with the head 31 of the connecting member 30 along the first direction Y. The end face of the second tubular member 42 close to the first connecting part 21 has a spacing with the first connecting part 21 along the first direction Y.

[0072] With the above arrangement, the second tubular member 42 is neither in contact with the head 31 of the connecting member 30 nor in contact with the first connecting part 21, so that the second tubular member 42 has a space for deformation or dimensional change when subjected to vibration, so that the vibration isolation mechanism 40 can more effectively absorb and disperse the vibration change, improving the vibration isolation effect.

[0073] In some embodiments, as shown, the dimension of the first tubular member 41 along the first direction Y is greater than or equal to the dimension of the second tubular member 42 along the first direction Y and less than or equal to the dimension of the third tubular member 43 along the first direction. The first direction Y is the extension direction of the vibration isolation mechanism 40. Figure 4 With the above arrangement, the contact area between the first tubular member 41 and the mounting hole 11 can be increased, so that the first tubular member 41 and the mounting hole 11 form a close contact, and the contact area between the first tubular member 41 and the mounting hole 11 can be increased, preventing the loosening of the vibration isolation mechanism 40 during vibration, thereby achieving good vibration isolation effect.

[0074] In some embodiments, as shown, the rod part of the connecting member 30 is threadedly connected with the first connecting part 21. A gap is provided between the third tubular member 43 and the rod part of the connecting member 30.

[0075] Figure 4 Here, the first connecting part 21 is, for example, a threaded sleeve.

[0076] With the above arrangement, when the connecting member 30 is installed, the rod part of the connecting member 30 is less hindered when rotating by the third tubular member 43, facilitating the installation of the connecting member 30 with the first connecting part 21.

[0077] In some embodiments, as shown, the vibration isolation object 10 comprises: a first shell 12, at least one second connecting part 13 and at least one support plate 14. The at least one second connecting part 13 is fixed to the first shell 12. The second connecting part 13 comprises a mounting hole 11. And the at least one support plate 14 is connected between the second connecting part 13 and the first shell 12.

[0078] For example, the first shell 12, the second connecting part 13 and the support plate 14 can be integrally formed. Figure 2 For example, the first shell 12, the second connecting part 13 and the support plate 14 can be integrally formed.

[0079]

[0080] ​​The first shell 12 is the main structure of the vibration isolation object 10, which not only carries various components inside the vibration isolation object 10, but also provides a mounting and fixing base for other components, such as the second connecting part 13 and the support plate 14. The second connecting part 13 is connected with the first shell 12, and the second connecting part 13 provides a mounting position for the mounting hole 11, so that the connecting piece 30 can be connected with the vibration isolation object 10 through the vibration isolation mechanism 40 and the mounting hole 11, and at the same time, the support plate 14 plays a role in strengthening and stabilizing the connection between the second connecting part 13 and the first shell 12.

[0081] Through the above arrangement, the first shell 12, the at least one second connecting part 13 and the at least one support plate 14 cooperate together to increase the connection stability between the connecting piece 30 and the vibration isolation object 10, so that the vibration isolation object 10 can remain stable when subjected to external vibration or impact, and the transmission of vibration is reduced.

[0082] In some embodiments, the electric drive shell 20 comprises a second shell 22 and a support structure 23. The support structure 23 is fixed to the second shell 22; wherein one or more first connecting parts 21 are fixed to the support structure 23.

[0083] For example, the second shell 22 can be integrally formed with the first connecting part 21.

[0084] In some examples, due to the irregularity of the shape of the electric drive structure, the second shell 22 is shaped as a special shape as a whole structure frame, and therefore, in order to meet the requirements of a specific installation space or structural strength, the support structure 23 can be arranged according to requirements, and the shape of the support structure 23 is not limited; and the first connecting part 21 is arranged on the support structure 23, which is used together with the first connecting part 21 arranged on the second shell 22 to connect the electric drive shell 20 and the connecting piece 30; the support structure 23 is fixed to the second shell 22, so that the arrangement position of the first connecting part 21 is flexible, which is beneficial to the rationality of the arrangement of the first connecting part 21, so as to improve the connection stability of the electric drive shell 20 and the vibration isolation object 10.

[0085] Through the above arrangement, the first shell 12, the at least one second connecting part 13 and the at least one support plate 14 cooperate together to increase the connection stability between the connecting piece 30 and the vibration isolation object 10, so that the vibration isolation object 10 can remain stable when subjected to external vibration or impact, and the transmission of vibration is reduced.

[0086] In some embodiments, the number of mounting holes 11 is greater than or equal to 1 and less than or equal to 6. The number of connecting pieces 30 is greater than or equal to 1 and less than or equal to 6. The number of vibration isolation mechanisms 40 is greater than or equal to 1 and less than or equal to 6.

[0087] Through the above setting, the appropriate number of mounting holes 11 can enable the vibration isolation mechanism 40 to be stably mounted into the vibration isolation object 10, the appropriate number of connecting pieces 30 can enable the connection between the vibration isolation object 10 and the electric drive shell 20 to be firm and reliable, and the appropriate number of vibration isolation mechanisms 40 can effectively reduce the transmission of vibration, so that the vibration isolation effect of the vibration isolation system is improved.

[0088] The above merely provides a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any change or replacement within the technical scope disclosed in the present application should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An isolation system, characterized by The application relates to an electric drive shell (20), a vibration isolation object (10) comprising at least one mounting hole (11), at least one connecting piece (30) corresponding to the at least one mounting hole (11) and connected with the electric drive shell (20), and at least one vibration isolation mechanism (40) corresponding to the at least one connecting piece (30) and the at least one mounting hole (11). The vibration isolation mechanism (40) is arranged in the mounting hole (11) and surrounds the connecting piece (30); the side surface of the vibration isolation mechanism (40) is fixed to the hole wall of the mounting hole (11). The electric drive shell (20) comprises at least one first connecting part (21), and the at least one connecting piece (30) is connected with the at least one first connecting part (21); The connecting piece (30) comprises a head part (31) and a rod part (32) connected with each other; The vibration isolation mechanism (40) comprises a first tubular part (41), a second tubular part (42) and a third tubular part (43) arranged in sequence in a direction away from the hole wall of the mounting hole (11); and the connecting piece (30) is arranged in the third tubular part (43).

2. The isolation system of claim 1, wherein One end surface of the third tubular part (43) abuts against the head part (31) of the connecting piece (30), and the other end surface of the third tubular part (43) abuts against the first connecting part (21).

3. The isolation system of claim 2, wherein, The material of the second tubular part (42) comprises a damping material. The size of the second tubular part (42) in a first direction is smaller than the size of the third tubular part (43) in the first direction; the first direction is the extension direction of the vibration isolation mechanism (40). In the first direction, the end surface of the second tubular part (42) close to the head part (31) of the connecting piece (30) has a spacing with the head part (31) of the connecting piece (30). In the first direction, the end surface of the second tubular part (42) close to the first connecting part (21) has a spacing with the first connecting part (21).

4. The isolation system of claim 3, wherein The size of the first tubular part (41) in the first direction is greater than or equal to the size of the second tubular part (42) in the first direction and smaller than or equal to the size of the third tubular part (43) in the first direction; the first direction is the extension direction of the vibration isolation mechanism (40).

5. The isolation system of claim 4, wherein The rod part (32) of the connecting piece (30) is threadedly connected with the first connecting part (21); and a gap is arranged between the third tubular part (43) and the rod part (32) of the connecting piece (30).

6. The isolation system of claim 5, wherein The vibration isolation object (10) comprises a first shell (12), at least one second connecting part (13) fixed to the first shell (12), wherein the second connecting part (13) comprises the mounting hole (11), and at least one support plate (14) connected between the second connecting part (13) and the first shell (12). The electric drive shell (20) comprises a second shell (22) and a support structure (23) fixed to the second shell (22).

7. The isolation system of claim 3, wherein ​ 8. The isolation system of claim 3, wherein ​ 9. The isolation system according to any one of claims 1 to 8, characterized in that ​ ​ ​ ​ 10. A vibration isolation system according to any one of claims 3 to 8, characterised in that, ​ ​ ​ One or more of the first connecting parts (21) are fixed to the support structure (23).

11. The isolation system according to any one of claims 1 to 8, characterized in that The number of the mounting holes (11) is greater than or equal to 1 and less than or equal to 6; The number of the connecting pieces (30) is greater than or equal to 1 and less than or equal to 6; The number of the vibration isolation mechanisms (40) is greater than or equal to 1 and less than or equal to 6.

12. A vehicle characterized by comprising: Comprise: The vibration isolation system according to any one of claims 1-11; The electric drive structure is arranged in the inner cavity of the electric drive shell (20).

Images