Powertrain mount and vehicle

Abstract

The application provides a power assembly suspension and a vehicle. The power assembly suspension has a suspension framework, a through hole is formed in the suspension framework, a suspension inner core is arranged in the through hole, a plurality of liquid chambers arranged side by side are formed in the suspension inner core, a flow channel for connecting the liquid chambers is arranged, and a driving rod with two ends extending out of the suspension inner core is arranged in each liquid chamber. Each driving rod is slid in the corresponding liquid chamber through a piston part formed on the driving rod, and damping liquid is filled in each liquid chamber and the flow channel. The power assembly suspension can meet the damping needs of the power assembly under different working conditions, can improve the use effect of the suspension, and has good practicability.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle parts, in particular to a power assembly suspension, and also relates to a vehicle adopting the power assembly suspension. BACKGROUND

[0002] In a vehicle, a power assembly suspension mainly plays the role of supporting, limiting and vibration isolation, so that the power assembly maintains a good posture during operation, does not interfere with the surrounding parts, and at the same time, the generated motion excitation is reduced to a certain extent, so that the driver has a quiet and comfortable driving experience.

[0003] The existing power assembly suspension mainly adopts a rubber structure, but rubber has the inherent characteristic of high-frequency hardening, and under high-frequency vibration, the stiffness of the rubber will increase sharply, losing its own damping ability, so the rubber suspension still has many deficiencies in specific applications.

[0004] In addition, for the power assembly rear suspension (the power assembly is generally mounted on the vehicle body through the left and right suspensions and the rear suspension), in vehicle operation, the rear suspension has a greater contribution to limiting the displacement of the power assembly in the X direction (the length direction of the vehicle body), especially in special working conditions such as sudden acceleration and sudden deceleration. However, in order to better cope with these special working conditions, the traditional rear suspension often adjusts the rubber stiffness and changes the limiting structure, but the effect is not ideal. Moreover, the change of the rubber stiffness and the limiting structure can also affect the suspension performance of the vehicle under idling and starting conditions. SUMMARY

[0005] Therefore, the present application aims to provide a power assembly suspension to meet the use needs under different working conditions and improve the use effect of the suspension.

[0006] To achieve the above-mentioned purpose, the technical scheme of the present application is as follows:

[0007] A power assembly suspension has a suspension framework, a through hole is formed in the suspension framework, and a suspension inner core is arranged in the through hole.

[0008] A plurality of liquid chambers are arranged side by side in the suspension inner core, a flow channel for connecting the liquid chambers to each other is arranged, each liquid chamber is provided with a driving rod with two ends extending out of the suspension inner core, each driving rod slides in the corresponding liquid chamber through the piston part formed on the driving rod, and the liquid chambers and the flow channel are filled with damping liquid.

[0009] Further, each of the liquid chambers comprises a middle liquid chamber in the middle, and two end liquid chambers in communication with the middle liquid chamber, and the piston part on each of the driving rods is arranged in each of the end liquid chambers.

[0010] Further, each of the driving rods is provided with a buffer block made of elastic material, and each of the driving rods abuts against the suspension framework through the buffer block arranged thereon.

[0011] Further, the suspension framework is provided with a limiting structure made of elastic material, and each of the driving rods abuts against the limiting structure.

[0012] Further, the limiting structure comprises a limiting plate connected to the inner wall of the through hole, and a limiting block on the limiting plate, the thickness of the limiting block is greater than that of the limiting plate, part of each of the driving rods abuts against the limiting block, and the other part abuts against the limiting plate.

[0013] Further, the plurality of liquid chambers comprises a main liquid chamber, and a vice liquid chamber arranged on both sides of the main liquid chamber, and the driving rods comprise a driving rod arranged in the main liquid chamber, and a driven rod arranged in each of the vice liquid chambers.

[0014] Further, the length of the driving rod is greater than that of the driven rod.

[0015] Further, an elastic mechanism is arranged between the driving rod and the suspension inner core to apply elastic force to the driving rod, and the elastic mechanism is at least one pair arranged along the length direction of the driving rod, and the directions of the elastic force applied by the two elastic mechanisms of each pair are opposite.

[0016] Further, the elastic mechanism adopts a spring sleeved on the driving rod, and the spring is arranged in the main liquid chamber, one end of the spring abuts against the suspension inner core, and the other end abuts against the piston part on the driving rod.

[0017] Compared with the prior art, the present application has the following advantages:

[0018] The power assembly suspension of the present application is composed of a hydraulic system of liquid chambers and flow channels filled with damping liquid, when the suspension inner core moves with the vibration of the power assembly, part of the driving rods abut against the suspension framework and slide, and the part of the driving rods after sliding can slide the other part of the driving rods by pushing the damping liquid.

[0019] Thus, the power assembly suspension of the present application can be in the general working condition of small power assembly vibration and small suspension inner core movement, in which each driving rod is not in abutment with the suspension framework and only the rubber main spring is used for vibration reduction. In the working condition of slightly large power assembly vibration and slightly large suspension inner core movement, part of the driving rods are in abutment with the suspension framework, and the rubber main spring and the part of the driving rods are used for vibration reduction simultaneously. In the special working condition of large power assembly vibration and large suspension inner core movement, another part of the driving rods are also in abutment with the suspension framework, and not only the rubber main spring and the driving rods are used for vibration reduction simultaneously, but also the abutment of the driving rods and the suspension framework can limit the displacement of the power assembly.

[0020] Therefore, the power assembly suspension of the present application can meet the vibration reduction requirement in the general working condition and can meet the vibration reduction and limiting requirements in the special working condition, and can meet the use requirements of the power assembly suspension in different working conditions, and can improve the use effect of the suspension.

[0021] Another object of the present application is to provide a vehicle in which the power assembly suspension is used.

[0022] The vehicle of the present application uses the power assembly suspension, can meet the vibration reduction requirement of the power assembly in different working conditions, can improve the use effect of the suspension, and has good practicability. BRIEF DESCRIPTION OF DRAWINGS

[0023] The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the application, and are incorporated herein for purposes of illustrating the preferred embodiments of the present application and explaining the principles of the present application. In the drawings:

[0024] Figure 1 The structure schematic view of the power assembly suspension of the embodiment of the present application;

[0025] Figure 2 The schematic view of the suspension framework, the rubber main spring and the limiting structure of the embodiment of the present application;

[0026] Figure 3 The setting schematic view of the driving rod and the driven rod in the suspension inner core of the embodiment of the present application;

[0027] Figure 4 The filling state schematic view of the damping liquid in the suspension inner core of the embodiment of the present application;

[0028] Figure 5 The structure schematic view of the driving rod of the embodiment of the present application;

[0029] Figure 6 The structure schematic view of the driven rod of the embodiment of the present application;

[0030] Figure 7 Positional schematic view of the suspension inner core in the general working condition described in the embodiments of the present application;

[0031] Figure 8 Schematic view of the state of the main and driven rods in the special working condition 1 described in the embodiments of the present application;

[0032] Figure 9 Schematic view of the flow of the damping liquid in the special working condition 1 described in the embodiments of the present application;

[0033] Figure 10 Schematic view of the state of the main and driven rods in the special working condition 2 described in the embodiments of the present application.

[0034] Explanation of reference signs:

[0035] 1, suspension framework; 2, suspension inner core; 3, rubber main spring; 4, main rod; 5, driven rod; 6, main rod buffer block; 7, driven rod buffer block; 8, first limiting structure; 9, second limiting structure; 10, spring; 11, liquid sealing bead; 12, damping liquid;

[0036] 101, through hole; 102, power assembly connecting hole;

[0037] 201, vehicle body connecting hole; 202, main liquid chamber; 203, auxiliary liquid chamber; 204, flow channel;

[0038] 401, main rod piston part; 501, driven rod piston part;

[0039] 801, first limiting plate; 802, first limiting block; 901, second limiting plate; 902, second limiting block;

[0040] a, middle liquid chamber; b, end liquid chamber. DETAILED DESCRIPTION

[0041] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0042] In the description of the present application, it should be noted that if terms indicating orientation or positional relationship such as “upper”, “lower”, “inner”, “outer” and the like appear, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, if the terms “first”, “second” and the like appear, they are also only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0043] Furthermore, in the description of the present application, unless otherwise explicitly defined, the terms "mounting", "connection", "connected", "connector" should be understood in a broad sense. For example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood in combination with the specific circumstances.

[0044] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0045] The present embodiment relates to a power assembly suspension, which can meet the use requirements of the power assembly suspension under different working conditions, thereby improving the use effect of the suspension.

[0046] Overall structure, as shown in Figure 1 and Figure 2 The power assembly suspension of the present embodiment has a suspension skeleton 1, a through hole 101 is formed on the suspension skeleton 1, and a suspension inner core 2 is arranged in the through hole 101.

[0047] Among them, similar to the existing suspension structure for mounting the power assembly, the suspension inner core 2 of the present embodiment is also connected in the through hole 101 on the suspension skeleton 1 through the rubber main spring 3. The through hole 101 penetrates the suspension skeleton 1 along the thickness direction to provide arrangement space for the rubber main spring 3 and the suspension inner core 2. Moreover, as a preferred implementation form, the rubber main spring 3 is divided into two parts arranged on the two opposite sides of the suspension inner core 2, and is connected with the suspension skeleton 1 and the suspension inner core 2 respectively by vulcanization.

[0048] In the present embodiment, the through hole 101 is located at one end of the suspension skeleton 1, and a power assembly connecting hole 102 is also arranged at the other end of the suspension skeleton 1, so that the suspension skeleton 1 and the power assembly can be connected together by bolts. In addition, a vehicle body connecting hole 201 is also arranged on the suspension inner core 2, so that the suspension inner core 2 and the vehicle body can be connected together by bolts, and it should be noted that when a subframe is arranged in the vehicle body, the suspension inner core 2 is generally connected to the subframe through the vehicle body connecting hole 201.

[0049] Further in the present embodiment, a plurality of liquid chambers arranged side by side are formed in the suspension inner core 2, and a flow channel 204 is arranged to communicate the liquid chambers with each other, and a driving rod extending out of the suspension inner core 2 at both ends is arranged in each liquid chamber, each driving rod slides in the corresponding liquid chamber through the piston part formed thereon, and the damping liquid 12 is filled in each liquid chamber and the flow channel 204.

[0050] At this time, as a preferred implementation form, specifically, as shown in Figure 3 and Figure 4As shown in the figure, the plurality of liquid chambers includes a main liquid chamber 202 and a sub-liquid chamber 203, and the main liquid chamber 202 and the sub-liquid chamber 203 are connected into a loop through a flow channel 204 located at both ends of the suspension inner core 2. Meanwhile, the driving rod also includes a driving rod 4 arranged in the main liquid chamber 202 and extending out of the suspension inner core 2 at both ends, and a driven rod 5 arranged in the sub-liquid chamber 203 and extending out of the suspension inner core 2 at both ends, and the damping liquid 12 is filled in the main liquid chamber 202, the sub-liquid chamber 203 and the flow channel 204.

[0051] In this embodiment, preferably, a sub-liquid chamber 203 is also arranged on both sides of the main liquid chamber 202, and a driven rod 5 is arranged in each sub-liquid chamber 203. In combination with Figure 5 and Figure 6 As shown in the figure, for the convenience of description, the piston part on the driving rod 4 is referred to as a driving rod piston part 401, and the piston part on the driven rod 5 is referred to as a driven rod piston part 501. In specific implementation, the driving rod piston part 401 and the driven rod piston part 501 are respectively integrally formed on the driving rod 4 and the driven rod 5. Of course, in order to ensure smooth sliding of the driving rod 4 and the driven rod 5, the driving rod piston part 401 and the inner wall of the main liquid chamber 202, and the driven rod piston part 501 and the inner wall of the sub-liquid chamber 203 should be smoothly abutted.

[0052] At the same time, in order to reliably push the damping liquid 12 by the driving rod piston part 401 and to reliably drive the driven rod 5 to slide by the damping liquid 12, of course, on the basis of ensuring smooth sliding, the driving rod piston part 401 and the inner wall of the main liquid chamber 202, and the driven rod piston part 501 and the inner wall of the sub-liquid chamber 203 should also have good sealing performance. In specific implementation, the design of the driving rod piston part 401 and the driven rod piston part 501 can be achieved by referring to the arrangement of the piston in the existing hydraulic cylinder.

[0053] In this embodiment, the piston parts on the driving rod 4 and the driven rod 5 can be arranged as only one. However, in order to reduce the frictional resistance between the piston part and the inner wall of the liquid chamber, and to make the sliding of the driving rod 4 and the driven rod 5 more smooth and stable, the piston parts on the driving rod 4 and the driven rod 5 can be arranged as two. Figure 3 and Figure 4 As shown in the figure, one side of the sub-liquid chamber 203 is taken as an example, the main liquid chamber 202 and the sub-liquid chamber 203 of this embodiment both include a middle liquid chamber a located in the middle, and two end liquid chambers b in communication with the middle liquid chamber a. Meanwhile, the piston parts on the driving rod 4 and the driven rod 5 are both arranged as two.

[0054] When the main liquid chamber 202 and the sub-liquid chamber 203 are both composed of the middle liquid chamber a and the end liquid chamber b in communication, it should be noted that the damping liquid 12 is filled in the middle liquid chamber a and the end liquid chamber b, and in specific implementation, the arrangement of the piston parts on the driving rod 4 and the driven rod 5 can be achieved by referring to Figure 3 andFigure 4 The liquid sealing bead 11 is used to seal the liquid injection port after the damping liquid 12 is injected into the liquid chamber through the liquid injection port.

[0055] In the embodiment, referring to Figure 4 , the length of the driving rod 4 is greater than that of the driven rod 5, and preferably, the diameter of the driving rod 4 is also greater than that of the driven rod 5, because the driven rod 5 is two and is driven by the same driving rod 4 through the transmission of the damping liquid 12 in operation. At this time, the greater length of the driving rod 4 can make the end of the driving rod 4 abut against the suspension framework 1 first when the suspension inner core 2 moves with the driving assembly, so that the hydraulic system composed of the main and auxiliary liquid chambers and the flow channel 203 filled with the damping liquid 12 is triggered to work by the driving rod 4, so as to drive the driven rod 5.

[0056] In order to avoid the end of the driving rod 4 and the driven rod 5 directly abutting against the suspension framework 1 and producing collision noise in use, the embodiment as a preferred implementation form is provided with a buffer block made of elastic material on the driving rod 4 and the driven rod 5, and the driving rod 4 and the driven rod 5 abut against the suspension framework 1 through the buffer blocks arranged thereon.

[0057] For the convenience of description, still as shown in Figure 5 and Figure 6 , the buffer block on the driving rod 4 is specifically referred to as a driving rod buffer block 6, and the buffer block on the driven rod 5 is specifically referred to as a driven rod buffer block 7. In specific implementation, preferably, the driving rod buffer block 6 and the driven rod buffer block 7 can both be made of rubber and connected to the end of the driving rod 4 or the driven rod 5 through vulcanization. Of course, in addition to rubber, the elastic material constituting the buffer block can also be other suitable materials.

[0058] In addition to the above buffer block, as another feasible implementation form, still referring to Figure 1 and Figure 2 , in specific implementation, a limiting structure made of elastic material can also be arranged on the suspension framework 1, and the ends of the driving rod 4 and the driven rod 5 both abut against the limiting structure.

[0059] At this time, because both ends of the driving rod 4 and the driven rod 5 will abut against the suspension framework 1 in use, the above limiting structure is two and is specifically referred to as a first limiting structure 8 and a second limiting structure 9. Moreover, as a preferred structure form, each limiting structure of the embodiment specifically includes a limiting plate connected to the inner wall of the through hole 101 and a limiting block on the limiting plate. The thickness of the limiting block is greater than that of the limiting plate, and the driving rod 4 abuts against the limiting block, and the driven rod 5 abuts against the limiting plate.

[0060] Continuing asFigure 2 As shown, in the arrangement, in view of the cross-sectional shape of the through hole 101 in the suspension frame 1, the first limiting structure 8 and the second limiting structure 9 are also different in structure. Specifically, the first limiting plate 801 in the first limiting structure 8 is arc-shaped, and the second limiting plate 901 in the second limiting structure 9 is in the shape of a broken line with multiple bends. The first limiting block 802 is located at the middle of the first limiting plate 801, and at the same time, the second limiting block 902 is also located at the middle of the second limiting plate 901, so as to be arranged in correspondence with the two ends of the driving rod 4 respectively. In the suspended working state, the two ends of the driving rod 4 abut against the first limiting block 802 or the second limiting block 902 respectively, and each driven rod 5 abuts against the corresponding part of the first limiting plate 801 or the second limiting plate 901.

[0061] In the implementation, the above-mentioned limiting structure can also be made of rubber and vulcanized on the inner wall of the through hole 101, and in addition to rubber, the elastic material constituting the limiting structure can also be other suitable materials. It should also be pointed out that in addition to the separate arrangement of the above-mentioned buffer block or limiting structure, the buffer block and the limiting structure can also be combined to form a buffer block with limiting function. Figure 1 As shown, preferably, the present embodiment can set the limiting structure on the suspension frame 1 at the same time, and also set the buffer block on the driving rod 4 and the driven rod 5, so as to obtain better buffering effect.

[0062] In the present embodiment, as a preferred implementation form, an elastic mechanism for applying elastic force to the driving rod 4 is also arranged between the driving rod 4 and the suspension inner core 2, and the elastic mechanism is at least one pair arranged along the length direction of the driving rod 4, and the directions of the elastic forces applied by the two elastic mechanisms of each pair to the driving rod 4 are opposite.

[0063] At this time, continue as Figure 4 and Figure 5 As shown, preferably, the above-mentioned elastic mechanism can adopt a spring 10 sleeved on the driving rod 4, the spring 10 is located in the main liquid chamber 202, and one end of the spring 10 abuts against the suspension inner core 2, and the other end abuts against the driving rod piston part 401 on the driving rod 4. Through the arrangement of the elastic mechanism, the present embodiment can keep the position of the suspension inner core 2 in the non-working state, and in the working state, it can also work together with the damping liquid 12 to have better buffering capacity.

[0064] The power assembly suspension of the present embodiment, in the implementation, the suspension frame 1, the suspension inner core 2, and the driving rod 4 and the driven rod 5 can all be made of aluminum alloy, and the suspension inner core 2 can adopt a two-half-shell structure connected by buckling, and after the driving rod 4 and the driven rod 5 are arranged in the liquid chamber, the two half-shell structures can generally be fixed together by ultrasonic welding, so as to help reduce the weight of the product and facilitate the miniaturization of the product.

[0065] In order to facilitate ultrasonic welding, welding protrusions can be added to the half-shell structure constituting the suspension inner core 2. After the two half-shell structures are welded together by ultrasonic welding to form the suspension inner core 2, a seal for each liquid chamber can be formed between the two half-shell structures. For the gap between the active rod 4 and the suspension inner core 2 and the gap between the driven rod 5 and the suspension inner core 2, vulcanized rubber can be added to the suspension inner core 2 to achieve a seal between the active rod 4 and the driven rod 5.

[0066] In addition, by replacing different damping liquids 12 and changing the materials, shapes, and the like of the limiting structures and the bumpers, the power assembly suspension of the embodiment can also meet the use requirements of different vehicle models, thereby improving the platform application capability of the suspension structure and reducing research and development investment.

[0067] In specific use, it should be noted that the length direction of the active rod 4 and the driven rod 5 in the power assembly suspension of the embodiment is generally arranged along the direction in which the displacement of the power assembly is large. For example, when the power assembly suspension of the embodiment is used as a power assembly rear suspension, the length direction of the active rod 4 and the driven rod 5 is along the X direction, i.e., the vehicle length direction.

[0068] At this time, based on the above description, it can be understood that, when the power assembly suspension of the embodiment works, as the power assembly generates vibration displacement, the suspension inner core 2 moves relative to the suspension frame 1, the active rod 4 abuts against and slides with the suspension frame 1, the sliding active rod 4 pushes the damping liquid 12, the driven rod 5 is driven to slide in the opposite direction of the active rod 4, and the sliding driven rod 5 can approach the suspension frame 1 or abut against the suspension frame 1.

[0069] Therefore, in combination with Figures 7 to 10 When the vehicle is in a general working condition, for example, the vehicle is static (stopped or idling) or in a gear position of 3 or more than 3, the vehicle state is relatively stable, the power assembly vibration is small, and therefore, as shown in Figure 7 the displacement of the suspension inner core 2 is small, which is not enough to make the active rod 4 abut against the limiting block, and the power assembly suspension reduces vibration through the rubber main springs 3 on both sides.

[0070] When the vehicle is in a gear position of 3 or more than 3 to 1 or 2, at this time, as the output torque increases, the vibration displacement of the power assembly increases, which can be regarded as a special working condition compared with the above general working condition, and in order to distinguish from another special working condition described below, the working condition when the vehicle is in a gear position of 3 or more than 3 to 1 or 2 can be referred to as special working condition 1.

[0071] In the special working condition 1, as shown in Figure 8As shown, taking the displacement in one direction as an example, the active rod 5 abuts against the first limiting block 802, and as the suspension inner core 2 continuously moves, the active rod 5 starts to slide relative to the suspension inner core 2. The sliding active rod 5 pushes the damping liquid 12 along the direction shown by the active rod piston part 501 on the active rod 5, and the flowing damping liquid 12 starts to drive the driven rod 5 to slide in the direction opposite to the active rod 4. Figure 9 As shown, the flowing damping liquid 12 starts to drive the driven rod 5 to slide in the direction opposite to the active rod 4. That is, the active rod 4 slides relative to the suspension inner core 2 to the side of the second limiting structure 9, and the driven rod 5 slides to the side of the first limiting structure 8.

[0072] In the special working condition 1, as the displacement of the suspension inner core 2 with the vibration of the power assembly is not enough to make the driven rod 5 abut against the limiting plate, in this working condition, the suspension reduces the vibration through the rubber main spring 3 and the active rod 4.

[0073] When the vehicle is in the 1st and 2nd gears full throttle to abuse working condition, which is the special working condition 2, at this time, the abuse working condition is, for example, the original pedal full throttle, or the vehicle is bottomed and the throttle is forward, etc. In the special working condition 2, compared with the above special working condition 1, the displacement of the suspension inner core 2 is larger, so referring to Figure 10 As shown, not only the active rod 4 and the limiting block abut against each other, but also the driven rod 5 and the limiting plate abut against each other. In this way, in the special working condition 2, on the one hand, the vibration can be reduced through the rubber main spring 3, the active rod 4 and the driven rod 5, and on the other hand, the abutment of the active rod 4 and the driven rod 5 against the first limiting structure 8 can also play a good supporting role to limit the further expansion of the displacement of the power assembly.

[0074] The power assembly suspension of the embodiment can meet the vibration reduction requirements of the power assembly when the vehicle is in the general working condition, and can meet the vibration reduction and limiting requirements of the power assembly when the vehicle is in the special working condition, which can meet the use requirements of the power assembly suspension in different working conditions, can improve the use effect of the suspension, and has good practicability.

[0075] Moreover, compared with the existing rubber suspension which can only adjust the rubber stiffness and change the limiting structure, the embodiment can realize the change of the suspension stiffness by adjusting the material, shape of each rubber part, and the parameters such as the grade of the damping liquid 12, the sliding stroke of the active rod and the driven rod, etc. through the increase of the hydraulic system, which can meet the use requirements of various vehicle driving styles and special working conditions. Meanwhile, it should be noted that in the above working conditions, the sliding displacement of the active rod 4 changes slightly with the vibration period, which can further consume the vibration energy by using the movement of the damping liquid 12, and thus the vibration reduction effect of the suspension can also be improved.

[0076] Finally, the present embodiment also relates to a vehicle in which the powertrain mount described above is employed. In this vehicle, the powertrain mount is particularly suitable for rear mounting of the powertrain, and the working conditions of the powertrain mount during use of the vehicle can be seen from the above description.

[0077] The above description is merely preferred embodiments of the present application, and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A power assembly suspension, having a suspension skeleton (1) with a through hole (101) formed thereon, and a suspension inner core (2) arranged in the through hole (101), characterized in that: a plurality of liquid chambers are arranged side by side in the suspension inner core (2), and a flow channel (204) is arranged to communicate the liquid chambers with each other, and each of the liquid chambers is provided with a driving rod with two ends extending out of the suspension inner core (2), each of the driving rods is arranged to slide in the corresponding liquid chamber through a piston arranged on the driving rod, and the liquid chambers and the flow channel (204) are filled with damping liquid (12); the plurality of liquid chambers include a main liquid chamber (202) and a pair of auxiliary liquid chambers (203) arranged on both sides of the main liquid chamber (202), and the driving rods include a main driving rod (4) arranged in the main liquid chamber (202) and a pair of driven rods (5) arranged in the auxiliary liquid chambers (203) respectively, and the length of the main driving rod (4) is greater than that of the driven rods (5); an elastic mechanism is arranged between the main driving rod (4) and the suspension inner core (2) to apply elastic force to the main driving rod (4), and the elastic mechanism is at least one pair of elastic mechanisms arranged along the length direction of the main driving rod (4), and each pair of the elastic mechanisms apply elastic force to the main driving rod (4) in opposite directions.

2. The power assembly suspension according to claim 1, characterized in that: each of the liquid chambers includes a middle liquid chamber (a) in the middle and two end liquid chambers (b) communicating with the middle liquid chamber (a), and the piston on each of the driving rods is arranged in two parts in the end liquid chambers (b).

3. The power assembly suspension according to claim 1, characterized in that: a buffer block made of elastic material is arranged on each of the driving rods, and each of the driving rods abuts against the suspension skeleton (1) through the buffer block arranged thereon.

4. The power assembly suspension according to claim 1, characterized in that: a limiting structure made of elastic material is arranged on the suspension skeleton (1), and each of the driving rods abuts against the limiting structure.

5. The power assembly suspension according to claim 4, characterized in that: the limiting structure includes a limiting plate connected to the inner wall of the through hole (101) and a limiting block arranged on the limiting plate, the thickness of the limiting block is greater than that of the limiting plate, and part of each of the driving rods abuts against the limiting block and the other part abuts against the limiting plate.

6. The power assembly suspension according to claim 1, characterized in that: the elastic mechanism is a spring (10) arranged on the main driving rod (4), and the spring (10) is arranged in the main liquid chamber (202), one end of the spring (10) abuts against the suspension inner core (2), and the other end abuts against the piston on the main driving rod (4).

7. A vehicle, characterized in that: the vehicle is provided with the power assembly suspension according to any one of claims 1 to 6. ​ ​ ​ ​ ​ ​ ​ ​ ​

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