Rear-drive motor suspension system and hydrogen-powered vehicle

Abstract

A rear-drive motor suspension system and a hydrogen-powered vehicle relate to the technical field of hydrogen-powered vehicles. The system is used to connect and suspend the motor system to the longitudinal and cross beams of a subframe. The motor system includes a drive motor and a transmission connected to the drive motor. The system also includes a rear suspension assembly, disposed at the rear of the motor system and connected between the transmission and the cross beam. A left suspension assembly is connected between the drive motor and the longitudinal beam on the left side of the subframe. A right suspension assembly is disposed at the right side of the motor system and connected between the drive motor and the longitudinal beam on the right side of the subframe. The present invention utilizes a common structure to improve component versatility, thereby reducing the required suspension layout space, the number of components, and costs.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen-powered vehicles, and in particular to a rear-wheel drive motor suspension system and a hydrogen-powered vehicle. Background Art

[0002] Fuel cell hydrogen vehicles are vehicles powered by hydrogen. Existing hydrogen vehicles generally consist of two powertrains: a fuel cell stack powertrain that uses hydrogen as an energy source to generate electricity through a chemical reaction, and a motor powertrain that uses the drive motor as the direct power source to provide propulsion for the vehicle. Therefore, hydrogen vehicles generally require two mounting systems: a motor mount system and a fuel cell stack mount system.

[0003] In fuel cell hydrogen vehicles, the motor suspension system refers to a device installed between the powertrain (usually consisting of a motor and a gearbox) and the subframe or subframe, and which supports, limits and isolates the powertrain from vibration.

[0004] Compared with traditional fuel vehicles and pure electric vehicles, fuel cell hydrogen vehicles not only include motor powertrains, but also other system devices such as stack suspension systems and hydrogen supply systems. Due to the limited layout space of the entire vehicle, fuel cell hydrogen vehicles have higher requirements on the spatial layout of the motor suspension system, making the existing motor suspension system configuration not simple enough, the structure not compact enough, occupying a large space, and the installation operation relatively inconvenient. Summary of the Invention

[0005] The purpose of the present invention is to overcome the shortcomings of the hydrogen car rear-wheel drive motor suspension system in the background technology, such as insufficient simplicity of configuration, insufficient compactness of structure, large space occupation, and inconvenient installation and operation, thereby providing a rear-wheel drive motor suspension system.

[0006] To solve the above problems, the present invention provides a rear-drive motor suspension system for connecting and suspending a motor system on a subframe longitudinal beam and a subframe crossbeam. The motor system includes a drive motor and a transmission connected to the drive motor, including:

[0007] a rear suspension assembly, disposed on the rear side of the motor system, connected between the transmission of the motor system and the subframe cross member, comprising a rear suspension bracket, a rubber bushing, an anti-collision pad, and a rear suspension support, wherein the rear suspension bracket and the rear suspension support are connected via the rubber bushing and the anti-collision pad, the rear suspension bracket is connected to the subframe cross member, and the rear suspension support is connected to the transmission;

[0008] a left suspension assembly connected between the drive motor of the motor system and the longitudinal beam on the left side of the subframe, the left suspension assembly comprising a left suspension support, a left suspension bracket, a rubber bushing, and an anti-collision pad; the left suspension bracket is connected to the left suspension support via the rubber bushing and the anti-collision pad; the left suspension bracket is connected to the longitudinal beam on the left side of the subframe; and the left suspension support is connected to the left end face of the drive motor;

[0009] The right suspension assembly is arranged on the right side of the motor system. The right suspension assembly is connected between the drive motor of the motor system and the longitudinal beam on the right side of the subframe. The right suspension assembly includes a right suspension bracket, a rubber bushing, an anti-collision pad and a right suspension support. The right suspension bracket and the right suspension support are connected through the rubber bushing and the anti-collision pad. The right suspension bracket is connected to the longitudinal beam on the right side of the subframe, and the right suspension support is connected to the right end face of the drive motor.

[0010] Optionally, the rear suspension support includes a rear support panel and a rear support bushing frame integrally formed with the rear support panel, and the rear support panel is provided with a plurality of rear support panel mounting screw holes for mounting the transmission.

[0011] Optionally, the left suspension support includes a left support panel and a left support bushing frame integrally formed with the left support panel, and the left support panel is provided with a plurality of left support panel mounting screw holes for mounting the drive motor.

[0012] Optionally, the right suspension support includes a right support panel and a right support bushing frame integrally formed with the right support panel, and the right support panel is provided with a plurality of right support panel mounting screw holes for installing the drive motor, and the positions of the right support panel mounting screw holes correspond one-to-one with the positions of the left support panel mounting screw holes.

[0013] Optionally, the rear support bushing frame, the left support bushing frame and the right support bushing frame are all cylindrical shells with the same structure, and are located on the side away from the motor system, and rubber bushings are embedded in the rear support bushing frame, the left support bushing frame and the right support bushing frame.

[0014] Optionally, the rubber bushing includes a steel ring, a rubber main spring and a core, the steel ring is embedded in the rear support bushing frame, the left support bushing frame and the right support bushing frame, the rubber main spring is embedded in the steel ring and is vulcanized to the steel ring, and the core is inserted in the rubber main spring and is vulcanized to the rubber main spring.

[0015] Optionally, the anti-collision pad is made of rubber material, is snap-connected to the rubber main spring, and is respectively located at both ends of the rubber main spring.

[0016] Optionally, the left suspension bracket includes a left bracket base and a pair of left support plates vertically connected to the left bracket base, the left bracket base is evenly provided with a plurality of left bracket base mounting screw holes, the left bracket base is connected to the longitudinal beam on the left side of the subframe through the left bracket base mounting screw holes, a second through bolt hole is provided on the left support plate, and the left support plate is respectively installed on both sides of the left support bushing frame and the anti-collision pad through the second through bolt hole.

[0017] Optionally, the right suspension bracket includes a right bracket base and a pair of right support plates vertically connected to the right bracket base, a plurality of right bracket base mounting screw holes are evenly arranged on the right bracket base, the right bracket base is connected to the longitudinal beam on the right side of the subframe through the right bracket base mounting screw holes, a third through bolt hole is provided on the right support plate, and the right support plate is respectively installed on both sides of the right support bushing frame and the anti-collision pad through the third through bolt hole.

[0018] Compared with the prior art, the present invention has the following beneficial effects: by setting the motor suspension system to a three-point suspension, namely the rear suspension assembly, the left suspension assembly and the right suspension assembly, each suspension assembly includes a suspension bracket assembly and a suspension support assembly, so that the configuration is simpler and the structure is more compact; the fuel cell hydrogen energy vehicle drive motor system adopts suspension to be connected with the subframe crossbeam and the subframe longitudinal beam, and the rear suspension assembly, the left suspension assembly and the right suspension assembly adopt universal rubber bushings and anti-collision pads, taking into account the human-machine requirements and the narrow cabin layout space, the occupied space of the motor suspension system is further reduced, and the installation operation is facilitated.

[0019] Another object of the present invention is to provide a hydrogen-powered vehicle comprising the rear-wheel drive motor suspension system as described above.

[0020] The advantages of the hydrogen-powered vehicle over existing technologies are the same as those of the aforementioned rear-wheel drive motor suspension system, and will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the structure of the rear-drive motor suspension system in an embodiment of the present invention;

[0022] Figure 2 is a structural schematic diagram of a specific example of a rear suspension assembly in an embodiment of the present invention;

[0023] Figure 3 is a structural schematic diagram of a specific example of a left suspension assembly in an embodiment of the present invention;

[0024] Figure 4 is a structural schematic diagram of a specific example of a right suspension assembly in an embodiment of the present invention;

[0025] Figure 5 Schematic diagram of the explosion structure of the left suspension support, rubber bushing and anti-collision pad in an embodiment of the present invention;

[0026] Figure 6 This is a structural diagram of a left suspension bracket in an embodiment of the present invention;

[0027] Figure 7 This is a schematic structural diagram of the left suspension bracket in another direction according to an embodiment of the present invention;

[0028] Figure 8 Schematic diagram of the structure of the right suspension bracket in an embodiment of the present invention;

[0029] Figure 9 Schematic diagram of the interface between the subframe crossbeam and the left and right suspension brackets in an embodiment of the present invention.

[0030] Figure 10 This is a schematic diagram of the interface between the subframe cross member and the left and right suspension brackets in another direction according to an embodiment of the present invention.

[0031] Description of reference numerals:

[0032] 1 - Rear suspension assembly; 11 - Rear suspension support frame; 111 - Rear support panel; 1111 - First rear support panel mounting bolt hole; 1112 - Second rear support panel mounting bolt hole; 1113 - Third rear support panel mounting bolt hole; 112 - Rear support bushing frame; 12 - Rear suspension bracket; 121 - U-shaped notch; 122 - First through-bolt hole; 13 - First rear support panel mounting bolt; 14 - Second rear support panel mounting bolt; 15 - Third rear support panel mounting bolt;

[0033] 2-Left suspension assembly; 21-Left suspension support frame; 211-Left support panel; 2111-First left suspension support mounting bolt hole; 2112-Second left suspension support mounting bolt hole; 2113-Third left suspension support mounting bolt hole; 212-Left support bushing frame; 22-Left suspension bracket; 221-Left bracket base; 2211-First left bracket base mounting bolt hole; 2212-Second left bracket base mounting bolt hole; 2213-Third left bracket base mounting bolt hole; 222-Left support plate; 2221-Second through-bolt hole; 23-First left bracket base mounting bolt; 24-Second left bracket base mounting bolt; 25-Third left bracket base mounting bolt;

[0034] 3 - Right suspension assembly; 31 - Right suspension support frame; 311 - Right support panel; 3111 - First right support panel mounting bolt hole; 3112 - Second right support panel mounting bolt hole; 3113 - Third right support panel mounting bolt hole; 312 - Right support bushing frame; 32 - Right suspension bracket; 321 - Right bracket base; 3211 - First right bracket base mounting bolt hole; 3212 - Second right bracket base mounting bolt hole; 3213 - Second right bracket base mounting bolt hole; 322 - Right support plate; 3221 - Third through-bolt hole; 33 - First right bracket base mounting bolt; 34 - Second right bracket base mounting bolt; 35 - Third right bracket base mounting bolt;

[0035] 4- rubber bushing; 41- steel ring; 42- rubber main spring; 43- core; 5- anti-crash pad; 51- first anti-crash pad; 52- second anti-crash pad; 6- drive motor; 7- transmission; 8- subframe crossbeam; 9- subframe longitudinal beam. DETAILED DESCRIPTION

[0036] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be noted that the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0038] It should be noted that in the coordinate system X, Y, and Z provided in this article, the positive direction of the X axis represents the back, the negative direction of the X axis represents the front, the positive direction of the Y axis represents the right, the negative direction of the Y axis represents the left, the positive direction of the Z axis represents the top, and the negative direction of the Z axis represents the bottom.

[0039] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components; wireless connections or wired connections. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0040] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0041] Compared with traditional fuel vehicles and pure electric vehicles, fuel cell hydrogen vehicles not only include motor powertrains, but also other system devices such as battery stack systems and hydrogen supply systems. Due to the limited layout space of the entire vehicle, fuel cell hydrogen vehicles have higher requirements on the spatial layout of the motor suspension system, making the design of the motor suspension system more difficult, resulting in the existing motor suspension system configuration not being simple enough, the structure not being compact enough, occupying a large space, and the installation operation being relatively inconvenient.

[0042] To solve the above problems, Figure 1-10 As shown, an embodiment of the present invention provides a rear-drive motor suspension system for connecting and suspending the motor system on the subframe longitudinal beam 9 and the subframe cross beam 8. The motor system includes a drive motor 6 and a transmission 7 connected to the drive motor 6. The rear-drive motor suspension system includes:

[0043] The rear suspension assembly 1 is arranged on the rear side of the motor system. The rear suspension assembly 1 is connected between the transmission 7 of the motor system and the subframe cross member 8. The rear suspension assembly 1 includes a rear suspension support frame 11, a rear suspension bracket 12, a rubber bushing 4 and an anti-collision pad 5. The rear suspension bracket 12 is connected to the rear suspension support frame 11 through the rubber bushing 4 and the anti-collision pad 5. The rear suspension bracket 12 is connected to the subframe cross member 8, and the rear suspension support frame 11 is connected to the transmission 7.

[0044] The left suspension assembly 2 is connected between the drive motor 6 of the motor system and the longitudinal beam on the left side of the subframe. The left suspension assembly 2 includes a left suspension support frame 21, a left suspension bracket 22, a rubber bushing 4 and an anti-collision pad 5. The left suspension bracket 22 is connected to the left suspension support frame 21 through the rubber bushing 4 and the anti-collision pad 5. The left suspension bracket 22 is connected to the longitudinal beam on the left side of the subframe, and the left suspension support frame 21 is connected to the left end face of the drive motor 6.

[0045] The right suspension assembly 3 is arranged on the right side of the motor system. The right suspension assembly 3 is connected between the drive motor 6 of the motor system and the longitudinal beam on the right side of the subframe. The right suspension assembly 3 includes a right suspension support frame 31, a right suspension bracket 32, a rubber bushing 4 and an anti-collision pad 5. The right suspension bracket 32 ​​is connected to the right suspension support frame 31 through the rubber bushing 4 and the anti-collision pad 5. The right suspension bracket 32 ​​is connected to the longitudinal beam on the right side of the subframe, and the right suspension support frame 31 is connected to the right end face of the drive motor 6.

[0046] Therefore, in an embodiment of the present invention, by setting the motor suspension system to a three-point suspension, namely the rear suspension assembly, the left suspension assembly and the right suspension assembly, each suspension assembly includes a suspension bracket assembly and a suspension support assembly, so that the configuration is simpler and the structure is more compact; the fuel cell hydrogen energy vehicle drive motor system adopts suspension to be connected with the subframe cross beam and the subframe longitudinal beam, and the rear suspension assembly, the left suspension assembly and the right suspension assembly adopt universal rubber bushings and anti-collision pads, taking into account the human-machine requirements and the narrow cabin layout space, the space occupied by the motor suspension system is further reduced, and the installation operation is facilitated.

[0047] Specifically, combined Figure 2 As shown, the rear suspension support frame 11 includes a rear support panel 111 and a rear support bushing frame 112 integrally formed with the rear support panel 111. The rear support panel 111 is provided with a plurality of rear support panel mounting screw holes for mounting the transmission 7. In this embodiment, preferably, three rear support panel mounting screw holes are provided, namely Figure 2 The first rear support panel mounting bolt hole 1111, the second rear support panel mounting bolt hole 1112 and the third rear support panel mounting bolt hole 1113 shown can fix the rear suspension support frame 11 on the transmission 7 through the three rear support panel mounting screw holes.

[0048] In an embodiment of the present invention, a pair of rear support bushing frames 112 are also provided with a first through bolt hole 122, through which the rear suspension support frame 11 is rotatably connected to the rear suspension bracket 12, so that the rear suspension support frame 11 can adjust the vibration position of the transmission 7.

[0049] Specifically, combined Figure 3 As shown, the left suspension support frame 21 includes a left support panel 211 and a left support bushing frame 212 integrally formed with the left support panel 211. The left support panel 211 is provided with a plurality of left support panel mounting screw holes for mounting the drive motor 6. In this embodiment, preferably, the rear support panel mounting screw holes are set to three, namely Figure 3 The first rear support panel mounting bolt hole 1111, the second rear support panel mounting bolt hole 2112 and the third rear support panel mounting bolt hole 2113 shown can fix the left suspension support frame 21 on the left end face of the drive motor 6 through the three left support panel mounting screw holes.

[0050] Specifically, combined Figure 4 As shown, the right suspension support frame 31 includes a right support panel 311 and a right support bushing frame 312 integrally formed with the right support panel 311. The right support panel 311 is provided with a plurality of right support panel mounting screw holes for installing the drive motor 6. The positions of the right support panel mounting screw holes correspond one-to-one with the positions of the left support panel mounting screw holes.

[0051] It should be noted that the right suspension support frame 31 and the left suspension support frame 21 have substantially the same structure and are symmetrically arranged to improve the utilization of the space layout and ensure the stability of the installation of the drive motor 6 .

[0052] Specifically, combined Figure 2-5 As shown, rear support bushing frame 112, left support bushing frame 212, and right support bushing frame 312 are all cylindrical shells with the same structure, located on the side away from the motor system. Left support bushing frame 212 is embedded with rubber bushing 4. This arrangement ensures that the internal structure of the left and right suspension supports is identical to that of the rear suspension. While ensuring the performance of the suspension system, the rear, left, and right suspensions use fully oriented rubber bushings to ensure component commonality.

[0053] Specifically, combined Figure 5 As shown, the rubber bushing 4 includes a steel ring 41, a rubber main spring 42 and a core 43. The steel ring 41 is embedded in the rear support bushing frame 112, the left support bushing frame 212 and the right support bushing frame 312. The rubber main spring 42 is embedded in the steel ring 41 and is vulcanized to the steel ring 41. The core 43 is inserted in the rubber main spring 42 and is vulcanized to the rubber main spring 42.

[0054] In an embodiment of the present invention, the rear support bushing frame 112, the left support bushing frame 212 and the right support bushing frame 312 are interference fit with the steel ring 41 and are pressed together by a press. The steel ring 41 and the rubber main spring 42 are connected together by a vulcanization process, and the rubber main spring 42 and the core 43 are connected together by a vulcanization process. The steel ring 41, the rubber main spring 42 and the core 43 are an integrated vulcanized part, collectively referred to as a rubber bushing.

[0055] Specifically, if Figure 5 As shown, the anti-crash pad 5 is made of rubber material, and the anti-crash pad 5 is snap-connected with the rubber main spring 42 and is respectively located at both ends of the rubber main spring 42. The first anti-crash pad 51, the rubber main spring 42 and the first anti-crash pad 52 are installed through a snap-fit ​​structure.

[0056] Specifically, combined Figure 6-7 As shown, the left suspension bracket 22 includes a left bracket base 221 and a pair of left support plates 222 vertically connected to the left bracket base 221. A plurality of left bracket base mounting screw holes are evenly arranged on the left bracket base 221. The left bracket base 221 is connected to the longitudinal beam on the left side of the subframe through the left bracket base mounting screw holes. A second through bolt hole 2221 is provided on the left support plate 222. The left support plate 222 is respectively mounted on both sides of the left support bushing frame 212 and the anti-collision pad 5 through the second through bolt hole 2221.

[0057] Among them, preferably, there are three left bracket base mounting screw holes, namely the first left bracket base mounting bolt hole 2211, the second left bracket base mounting bolt hole 2212 and the third left bracket base mounting bolt hole 2213. Such a setting, by integrating the threaded holes for connecting and mating the first left bracket base mounting bolt 23, the second left bracket base mounting bolt 24 and the third left bracket base mounting bolt 25 on the left suspension bracket 22, can greatly reduce the volume of the left suspension bracket 22 and the space it occupies, and ultimately further reduce the overall size of the assembly of the subframe cross beam 8 and the subframe longitudinal beam 9.

[0058] Specifically, combined Figure 8 As shown, the right suspension bracket 32 ​​includes a right bracket base 321 and a pair of right support plates 322 vertically connected to the right bracket base 321. A plurality of right bracket base mounting screw holes are evenly arranged on the right bracket base 321. The right bracket base 321 is connected to the longitudinal beam on the right side of the subframe through the right bracket base mounting screw holes. A third through-bolt hole 3221 is provided on the right support plate 322. The right support plate 322 is respectively mounted on both sides of the right support bushing frame 312 and the anti-collision pad 5 through the third through-bolt hole 3221.

[0059] In the embodiment of the present invention, combined with Figure 9-10 As shown, the subframe's cross member 8 and longitudinal members 9, along with the left and right overhang mounting bolts, are all installed from bottom to top. The bolt holes for these mounting bolts are all through-holes and large, round holes, facilitating adjustments and accommodating tolerances during powertrain assembly.

[0060] An embodiment of the present invention further provides a hydrogen-powered vehicle comprising the rear-wheel drive motor suspension system as described above.

[0061] The advantages of hydrogen vehicles over existing technologies are the same as those of the above-mentioned rear-wheel drive motor suspension system and will not be elaborated here.

[0062] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A rear-drive motor suspension system for connecting and suspending a motor system on a subframe longitudinal beam (9) and a subframe cross beam (8), wherein the motor system comprises a drive motor (6) and a transmission (7) connected to the drive motor (6), and is characterized in that: include: A rear suspension assembly (1) is arranged at the rear side of the motor system, the rear suspension assembly (1) is connected between the transmission (7) of the motor system and the subframe crossbeam (8), the rear suspension assembly (1) comprises a rear suspension bracket (12), a rubber bushing (4), an anti-collision pad (5) and a rear suspension support frame (11), the rear suspension bracket (12) and the rear suspension support frame (11) are connected via the rubber bushing (4) and the anti-collision pad (5), the rear suspension bracket (12) is connected to the subframe crossbeam (8), and the rear suspension support frame (11) is connected to the transmission (7); The rear suspension support frame (11) comprises a rear support panel (111) and a rear support bushing frame (112) integrally formed with the rear support panel (111), and the rear support panel (111) is provided with a plurality of rear support panel mounting screw holes for mounting the transmission (7); A left suspension assembly (2) is connected between the drive motor (6) of the motor system and the longitudinal beam on the left side of the subframe, the left suspension assembly (2) comprising a left suspension support frame (21), a left suspension bracket (22), a rubber bushing (4) and an anti-collision pad (5), the left suspension bracket (22) and the left suspension support frame (21) are connected via the rubber bushing (4) and the anti-collision pad (5), the left suspension bracket (22) is connected to the longitudinal beam on the left side of the subframe, and the left suspension support frame (21) is connected to the left end face of the drive motor (6); The left suspension support frame (21) comprises a left support panel (211) and a left support bushing frame (212) integrally formed with the left support panel (211); the left support panel (211) is provided with a plurality of left support panel mounting screw holes for mounting the drive motor (6); A right suspension assembly (3) is arranged on the right side of the motor system. The right suspension assembly (3) is connected between the drive motor (6) of the motor system and the longitudinal beam on the right side of the subframe. The right suspension assembly (3) includes a right suspension bracket (32), a rubber bushing (4), an anti-collision pad (5) and a right suspension support frame (31). The right suspension bracket (32) is connected to the right suspension support frame (31) through the rubber bushing (4) and the anti-collision pad (5). The right suspension bracket (32) is connected to the longitudinal beam on the right side of the subframe. The right suspension support frame (31) is connected to the right end face of the drive motor (6). The left suspension bracket (22) includes a left bracket base (221) and a pair of left support plates (222) vertically connected to the left bracket base (221); a plurality of left bracket base mounting screw holes are evenly arranged on the left bracket base (221); the left bracket base (221) is connected to the longitudinal beam on the left side of the sub-frame through the left bracket base mounting screw holes; a second through-bolt hole (2221) is provided on the left support plate (222); the left support plate (222) is respectively mounted on both sides of the left support bushing frame (212) and the anti-collision pad (5) through the second through-bolt hole (2221); The right suspension support frame (31) comprises a right support panel (311) and a right support bushing frame (312) integrally formed with the right support panel (311), the right support panel (311) being provided with a plurality of right support panel mounting screw holes for mounting the drive motor (6), the positions of the right support panel mounting screw holes corresponding to the positions of the left support panel mounting screw holes; The right suspension bracket (32) includes a right bracket base (321) and a pair of right support plates (322) vertically connected to the right bracket base (321), the right bracket base (321) is evenly provided with a plurality of right bracket base mounting screw holes, the right bracket base (321) is connected to the longitudinal beam on the right side of the subframe through the right bracket base mounting screw holes, the right support plate (322) is provided with a third through-bolt hole (3221), and the right support plate (322) is respectively mounted on both sides of the right support bushing frame (312) and the anti-collision pad (5) through the third through-bolt hole (3221).

2. The rear-drive motor suspension system according to claim 1, wherein: The rear support bushing frame (112), the left support bushing frame (212) and the right support bushing frame (312) are all cylindrical shells with the same structure and are located on a side away from the motor system. Rubber bushings (4) are embedded in the rear support bushing frame (112), the left support bushing frame (212) and the right support bushing frame (312).

3. The rear-drive motor suspension system according to claim 2, wherein: The rubber bushing (4) comprises a steel ring (41), a rubber main spring (42) and a core (43); the steel ring (41) is embedded in the rear support bushing frame (112), the left support bushing frame (212) and the right support bushing frame (312); the rubber main spring (42) is embedded in the steel ring (41) and is vulcanized to the steel ring (41); the core (43) is inserted in the rubber main spring (42) and is vulcanized to the rubber main spring (42).

4. The rear-drive motor suspension system according to claim 3, wherein: The anti-collision pad (5) is made of rubber material, and the anti-collision pad (5) is snap-connected to the rubber main spring (42) and is respectively located at both ends of the rubber main spring (42).

5. A hydrogen car, characterized in that: It comprises the rear-wheel drive motor suspension system according to any one of claims 1 to 4.

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