CN215096865U - Electrically-driven rear independent suspension assembly - Google Patents
Electrically-driven rear independent suspension assembly Download PDFInfo
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- CN215096865U CN215096865U CN202120336279.6U CN202120336279U CN215096865U CN 215096865 U CN215096865 U CN 215096865U CN 202120336279 U CN202120336279 U CN 202120336279U CN 215096865 U CN215096865 U CN 215096865U
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Abstract
The utility model provides an independent suspension assembly behind electric drive, including back sub vehicle frame assembly, electric drive system and back independent suspension system, back sub vehicle frame assembly is including the back sub vehicle frame longeron that sets up in pairs, connect the back sub vehicle frame of two back sub vehicle frame longeron rear ends and connect the front beam of two back sub vehicle frame longeron front ends, front beam and back sub vehicle frame all are connected with electric drive system suspension, the crooked position structure of back sub vehicle frame longeron is middle part kickup's structure, motor drive system's back driving shaft passes the crooked position of back sub vehicle frame longeron and the clearance between the independent suspension system in back. The utility model discloses an increase the front beam, enlarge back sub vehicle frame well style of calligraphy inner space simultaneously, solve among the electric drive system the problem difficult of arranging of electric drive system and back drive shaft, compact structure can be applicable to electric automobile.
Description
Technical Field
The utility model belongs to the technical field of suspension system, especially indicate an independent suspension assembly behind electric drive.
Background
In a fuel automobile, a multi-link rear independent suspension is a common rear suspension module, and the structural forms of the multi-link rear independent suspension are various, wherein one of the multi-link rear independent suspensions is a trapezoidal multi-link and mainly comprises an H-shaped control arm, a rear lower control arm and a rear upper control arm which are transversely arranged along an automobile body to form a suspension guide mechanism.
The electric automobile needs to arrange an electric drive system in a rear suspension system, and has two difficulties, one is arrangement of a motor and a speed reducer assembly, and the other is arrangement of a rear drive shaft, an H-shaped control arm is relatively large, a rear lower control arm and a rear upper control arm are relatively long, so that the occupied space is too high, the space for arranging the electric drive system cannot be provided, and a front cross beam and a rear cross beam of a rear auxiliary frame body and a left longitudinal beam and a right longitudinal beam are large and are easy to interfere with the electric drive system, so that the electric automobile is not suitable for the electric automobile.
SUMMERY OF THE UTILITY MODEL
The utility model provides an independent suspension assembly behind electric drive through increasing the front beam, enlarges back sub vehicle frame body well style of calligraphy inner space simultaneously, solves among the electric drive system with the back driven difficult problem of arranging, compact structure can be applicable to electric automobile.
The fore-and-aft direction define do, the vehicle direction of advance is the place ahead, vertical promptly. The utility model provides an independent suspension assembly behind electric drive, includes back sub vehicle frame assembly, electric drive system and back independent suspension system, back sub vehicle frame assembly is including the back sub vehicle frame longeron that sets up in pairs, connects the back sub vehicle frame body of two back sub vehicle frame longeron rear ends and connects the front beam of two back sub vehicle frame longeron front ends, the front beam with back sub vehicle frame body all with the suspension of electric drive system is connected, the crooked position structure of back sub vehicle frame longeron is middle part kickup's structure, and the back drive shaft of electric drive system passes the crooked position of back sub vehicle frame longeron with clearance between the independent suspension system in back.
The utility model discloses an increase the front beam, enlarge back sub vehicle frame body well style of calligraphy inner space simultaneously, solve among the electric drive system the problem difficult of arranging of electric drive system and back drive shaft, compact structure can be applicable to electric automobile.
Preferably, the rear independent suspension system includes an H-shaped control arm, a rear lower control arm, a rear upper control arm, a rear stabilizer bar, a coil spring, and a damper, the coil spring is disposed in front of the rear drive shaft, the damper and the rear upper control arm are disposed behind the rear drive shaft, and the rear drive shaft passes through a gap between a bent portion of the rear subframe girder and the H-shaped control arm. In order to facilitate the arrangement of the rear driving shaft, the middle part of the longitudinal beam of the rear auxiliary frame is bent upwards in the vertical direction, and the mounting point of the H-shaped control arm on the rear auxiliary frame body is inclined downwards, so that the middle space is vacated, and the rear driving shaft can be arranged above the H-shaped control arm and below the left longitudinal beam and the right longitudinal beam; the spring is arranged on the H-shaped control arm at a front-biased position in the front-back direction, and the shock absorber and the rear upper control arm are arranged at a rear-biased position, so that the rear driving shaft can be arranged behind the spring and in front of the shock absorber and the rear upper control arm. Solves the problem of insufficient installation space of the rear driving shaft and has compact structure
Preferably, the electric drive system comprises a motor, a speed reducer assembly and a rear driving shaft which are in power connection in sequence, the electric drive system and the front cross beam are in installation connection through 2 suspension points, and the electric drive system is in installation connection with the rear auxiliary frame body through 1 suspension point. The motor and the speed reducer assembly are connected with the rear auxiliary frame assembly through the front two and rear one suspension forms, the front two suspensions are connected to the front cross beam of the rear auxiliary frame body, and the rear one suspension is connected to the rear cross beam of the rear auxiliary frame body. The back sub vehicle frame assembly provides the mounting point for motor and reduction gear assembly, increases the front beam, becomes well type structure by original pi type structure, and has enlarged back sub vehicle frame body well style of calligraphy inner space in order to dodge motor and reduction gear assembly.
Preferably, the rear brake angle unit is further included and comprises a brake, a brake disc and a hub bracket, the rear driving shaft is in transmission connection with the rear brake angle unit, and the rear driving shaft is simple in structure and low in cost.
Preferably, be provided with 4 bushes on the back sub vehicle frame assembly, back sub vehicle frame assembly passes through bolted connection is carried out to girder behind bush and the automobile body, simple structure, and is with low costs.
The utility model has the advantages that:
1. the utility model discloses compact structure, simple is fit for electric automobile
2. The motor and the speed reducer assembly are connected with the rear auxiliary frame assembly through the front two and the rear one in the electric drive system in a suspension mode, wherein the front and rear beams of the rear auxiliary frame body and the left and right longitudinal beams need to be avoided and adjusted, namely, the well-shaped inner space of the rear auxiliary frame body is enlarged, and the installation space requirement of the motor and the speed reducer assembly is met.
3. The rear driving shaft is ingeniously arranged between the rear auxiliary frame longitudinal beam and the H-shaped control arm and between the spring and the shock absorber, and the space requirement for arrangement and jumping of the rear driving shaft is met.
Drawings
Fig. 1 is a schematic view of a mounting structure of a rear sub-frame body assembly of an electrically driven rear independent suspension assembly of the present invention.
Fig. 2 is a schematic diagram of the overall structure of an electrically driven rear independent suspension assembly according to the present invention.
Fig. 3 is an enlarged view in the left-hand direction of fig. 2, showing the spatial disposition position of the rear drive shaft.
Fig. 4 is a schematic structural diagram of the rear independent suspension system of the present invention.
Fig. 5 is a schematic structural view of the rear sub-frame body assembly of the present invention.
Fig. 6 is a schematic structural diagram of a rear brake corner unit according to the present invention.
In the figure: 1-rear subframe body assembly, 101-rear subframe longitudinal beam, 102-rear subframe body, 103-front cross beam, 2-electric drive system, 201-motor, 202-reducer assembly, 203-rear drive shaft, 3-rear independent suspension system, 301-H type control arm, 302-rear lower control arm, 303-rear upper control arm, 304-rear stabilizer bar, 305-spiral spring, 306-shock absorber, 4-rear brake angle unit, 401-brake, 402-brake disc, 403-hub bracket, 5-bush.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments, which are illustrative of the invention and are not to be construed as unduly limiting the invention.
In the description of the present invention, it is to be understood that the terms "left", "right", "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply specific orientations that the device or structure indicated must have, be constructed in specific orientations, and operations, and therefore, should not be construed as limiting the present invention.
Example 1:
as shown in fig. 1 to 3, an electrically driven rear independent suspension assembly is suitable for an electric vehicle, and solves two difficulties in the arrangement of an electric drive system 2 through reasonable design and arrangement: one is the arrangement of the motor 201 and the reducer assembly 202, and the other is the arrangement of the rear drive shaft 203.
This embodiment includes back sub vehicle frame assembly 1, electric drive system 2 and back independent suspension system 3, and back sub vehicle frame assembly 1 is including the back sub vehicle frame longeron 101 that sets up in pairs, connects the back sub vehicle frame body 102 of two back sub vehicle frame longeron 101 rear ends and connects the front beam 103 of two back sub vehicle frame longeron 101 front ends, front beam 103 with back sub vehicle frame body 102 all with the electric drive system suspension is connected, the bending part structure of back sub vehicle frame longeron 101 is middle part kickup's structure, and electric drive system 2's back drive shaft 203 passes the bending part of back sub vehicle frame longeron 101 with the clearance between the independent suspension system 3 of back.
In the embodiment, the motor 201 and the speed reducer assembly 202 in the electric drive system 2 are connected with the rear subframe assembly 1 in a front-second-rear suspension manner, wherein front and rear cross beams and left and right longitudinal beams of the rear subframe body 102 need to be subjected to avoidance adjustment, namely, the well-shaped inner space of the rear subframe body 102 is enlarged, and the installation space requirements of the motor 201 and the speed reducer assembly 202 are met.
As shown in fig. 1 and 3, in the present embodiment, the rear drive axle 203 is skillfully arranged between the rear subframe longitudinal beam 101 and the H-shaped control arm 301, and between the spring and the shock absorber 306, so that the space requirement for arrangement and jumping of the rear drive axle 203 is met.
Example 2:
as shown in fig. 1 to 3, an electrically driven rear independent suspension assembly includes a rear subframe assembly 1, an electric drive system 2 and a rear independent suspension system 3, wherein the rear subframe assembly 1 includes rear subframe longitudinal beams 101 disposed in pairs, a rear subframe body 102 connecting rear ends of the two rear subframe longitudinal beams 101 and a front cross beam 103 connecting front ends of the two rear subframe longitudinal beams 101, the front cross beam 103 and the rear subframe body 102 are both connected to the electric drive system in a suspension manner, a bending portion of the rear subframe longitudinal beam 101 is configured in a structure with an upward bending middle portion, the rear subframe longitudinal beam 101 is disposed above the rear independent suspension system 3, and a rear drive shaft 203 of the electric drive system 2 penetrates through a gap between the bending portion of the rear subframe longitudinal beam 101 and the rear independent suspension system 3. The embodiment solves the problem of mounting the electric drive unit and the rear drive shaft 203 in the electric automobile, and has compact structure.
As shown in fig. 4, in the present embodiment, the rear independent suspension system 3 includes an H-shaped control arm 301, a rear lower control arm 302, a rear upper control arm 303, a rear stabilizer bar 304, a coil spring 305, and a damper 306, the coil spring 305 is disposed in front of the rear drive shaft 203, the damper 306 and the rear upper control arm 303 are disposed behind the rear drive shaft 203, and the rear drive shaft 203 passes through a gap between the bent portion of the rear sub frame side member 101 and the H-shaped control arm 301. As shown in fig. 3, in order to facilitate the arrangement of the rear drive axle 203, the mounting point of the H-shaped control arm 301 on the rear subframe body 102 is offset downward by bending the middle portion of the rear subframe longitudinal member 101 upward in the up-down direction, thereby making a middle space, so that the rear drive axle 203 can be arranged above the H-shaped control arm 301 and below the left and right longitudinal members; the spring is mounted on the H-shaped control arm 301 at a position biased forward in the front-rear direction, and the shock absorber 306 is disposed rearward of the rear upper control arm 303, so that the rear drive shaft 203 can be disposed rearward of the spring, forward of the shock absorber 306 and the rear upper control arm 303. The problem of back drive shaft 203 installation space not enough is solved, compact structure.
As shown in fig. 4, in the present embodiment, one end of the H-shaped control arm 301, the rear lower control arm 302, and the rear upper control arm 303 in the rear independent suspension system 3 is bolted to the swing arm bracket on the rear subframe body 102 through a bushing 5, and the other end is bolted to the hub bracket 403 of the rear brake angle unit 4 through a bushing 5; the rear stabilizer bar 304 is mounted on the rear side of the rear subframe body 102, and the left and right ends thereof are bolted to stabilizer bar links on the H-shaped control arm 301 through ball pins; the lower end of the spring is arranged in a spring groove of the H-shaped control arm 301, and the upper end of the spring is connected with the vehicle body; the shock absorber 306 has a lower end bolted to the hub bracket 403 of the rear brake angle unit 4 and an upper end connected to the vehicle body.
As shown in fig. 1, in the present embodiment, the electric drive system 2 includes a motor 201, a reducer assembly 202 and a rear drive shaft 203, which are connected in sequence, the electric drive system 2 and the front cross member 103 are connected by mounting 2 suspension points, and the electric drive system 2 is connected by mounting 1 suspension point and the rear subframe body 102. The motor 201 and the speed reducer assembly 202 are connected with the rear subframe assembly 1 through the suspension form of the front two and the rear one, the front two suspensions are connected on the front cross beam 103 of the rear subframe body 102, and the rear one is connected on the rear cross beam of the rear subframe body 102. As shown in fig. 5, the rear subframe assembly 1 provides a mounting point for the motor 201 and the reducer assembly 202, adds the front cross beam 103, changes the original pi-shaped structure into a well-shaped structure, and enlarges the well-shaped internal space of the rear subframe body 102 in order to avoid the motor 201 and the reducer assembly 202.
As shown in fig. 6, the present embodiment further includes a rear brake angle unit 4, the rear brake angle unit 4 includes a brake 401, a brake disc 402 and a hub bracket 403, the rear drive shaft 203 is in transmission connection with the rear brake angle unit 4, and the brake 401 and the brake disc 402 in the brake angle unit are mounted on the hub bracket 403. Simple structure and low cost.
As shown in fig. 5, in the present embodiment, the rear subframe assembly 1 is provided with 4 bushings 5, that is, four points at the front, rear, left and right, and the rear subframe assembly 1 is bolted to the rear frame of the vehicle body through the bushings 5, so that the structure is simple and the cost is low.
Claims (5)
1. The utility model provides an independent suspension assembly behind electric drive, includes back sub vehicle frame assembly (1), electric drive system (2) and back independent suspension system (3), its characterized in that: rear sub vehicle frame assembly (1) is including back sub vehicle frame longeron (101) that set up in pairs, connects back sub vehicle frame body (102) of two back sub vehicle frame longeron (101) rear ends and connects front beam (103) of two back sub vehicle frame longeron (101) front ends, front beam (103) with back sub vehicle frame body (102) all with the electricity drives the system suspension and connects, the bending part structure of back sub vehicle frame longeron (101) is middle part kickup's structure, and rear drive axle (203) of electric drive system (2) passes the bending part of back sub vehicle frame longeron (101) with the clearance between the independent suspension system (3) in back.
2. An electrically driven rear independent suspension assembly as set forth in claim 1 wherein: the rear independent suspension system (3) comprises an H-shaped control arm (301), a rear lower control arm (302), a rear upper control arm (303), a rear stabilizer bar (304), a spiral spring (305) and a shock absorber (306), wherein the spiral spring (305) is arranged in front of the rear driving shaft (203), the shock absorber (306) and the rear upper control arm (303) are arranged behind the rear driving shaft (203), and the rear driving shaft (203) penetrates through a gap between the bending part of the rear auxiliary frame (101) and the H-shaped control arm (301).
3. An electrically driven rear independent suspension assembly as set forth in claim 2 wherein: the electric drive system (2) comprises a motor (201), a speed reducer assembly (202) and a rear drive shaft (203) which are in power connection in sequence, the electric drive system (2) is in installation connection with the front cross beam (103) through 2 suspension points, and the electric drive system (2) is in installation connection with the rear auxiliary frame body (102) through 1 suspension point.
4. An electrically driven rear independent suspension assembly as set forth in claim 2 wherein: the brake device is characterized by further comprising a rear brake angle unit (4), wherein the rear brake angle unit (4) comprises a brake (401), a brake disc (402) and a hub bracket (403), and the rear driving shaft (203) is in transmission connection with the rear brake angle unit (4).
5. An electrically driven rear independent suspension assembly as set forth in claim 2 wherein: be provided with 4 bush (5) on back sub vehicle frame assembly (1), back sub vehicle frame assembly (1) passes through behind bush (5) and the automobile body girder carry out bolted connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120336279.6U CN215096865U (en) | 2021-02-05 | 2021-02-05 | Electrically-driven rear independent suspension assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120336279.6U CN215096865U (en) | 2021-02-05 | 2021-02-05 | Electrically-driven rear independent suspension assembly |
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| Publication Number | Publication Date |
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| CN215096865U true CN215096865U (en) | 2021-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120336279.6U Active CN215096865U (en) | 2021-02-05 | 2021-02-05 | Electrically-driven rear independent suspension assembly |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114701318A (en) * | 2022-04-06 | 2022-07-05 | 安徽理工大学环境友好材料与职业健康研究院(芜湖) | Torsion beam type semi-independent suspension electric drive rear axle assembly |
| CN116118870A (en) * | 2023-03-10 | 2023-05-16 | 岚图汽车科技有限公司 | Suspension system and vehicle |
-
2021
- 2021-02-05 CN CN202120336279.6U patent/CN215096865U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114701318A (en) * | 2022-04-06 | 2022-07-05 | 安徽理工大学环境友好材料与职业健康研究院(芜湖) | Torsion beam type semi-independent suspension electric drive rear axle assembly |
| CN116118870A (en) * | 2023-03-10 | 2023-05-16 | 岚图汽车科技有限公司 | Suspension system and vehicle |
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