CN209870077U - Rear suspension structure of power assembly of pure electric vehicle - Google Patents

Rear suspension structure of power assembly of pure electric vehicle Download PDF

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Publication number
CN209870077U
CN209870077U CN201920247954.0U CN201920247954U CN209870077U CN 209870077 U CN209870077 U CN 209870077U CN 201920247954 U CN201920247954 U CN 201920247954U CN 209870077 U CN209870077 U CN 209870077U
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suspension
plate
bracket
bolt
pure electric
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CN201920247954.0U
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Inventor
周站福
王振涛
李佳
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FAW Group Corp
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FAW Group Corp
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Abstract

The utility model discloses a pure electric vehicles power assembly rear suspension structure, which comprises a rear suspension transition bracket, a rear suspension cushion assembly and a rear suspension bracket; the rear suspension transition support is welded on the auxiliary frame; the rear suspension cushion assembly is fixed on the rear suspension transition bracket; the rear suspension support is fixed on the rear suspension cushion assembly and connected with the power assembly. The utility model discloses a suspension structure atress is even behind pure electric vehicles power assembly to reduce the shake of vehicle, improved bearing capacity, satisfied the requirement that the suspension atress is even and satisfy durability behind the pure electric passenger car.

Description

Rear suspension structure of power assembly of pure electric vehicle
Technical Field
The utility model relates to a pure electric vehicles power assembly technical field especially relates to a suspension structure behind pure electric vehicles power assembly.
Background
The rear suspension of the power assembly is one of important core components of a whole vehicle bearing power system of the electric vehicle, and the working state of the power assembly directly influences the whole vehicle performance of the new energy vehicle. The rear suspension structure of the power assembly directly influences the NVH performance and the power performance of the whole vehicle. In the case of the whole vehicle, besides the spatial arrangement of the whole vehicle, the reliability and the force transmission performance of the suspension are also considered, and if the force transmission is not uniform, the shaking of the whole vehicle is caused, so that the driving comfort and the power performance are influenced. If the structural design is unreasonable, the potential safety hazard of the whole vehicle is also great. It is very important to design a suspension structure of a vehicle.
Traditional fuel vehicle engine has a lot of stress points with suspension structure, therefore the combination of suspension and engine is very inseparable, and the power assembly of electric motor car mainly comprises motor and reduction gear, wherein the motor is drive arrangement, the reduction gear is slave unit, and the reduction gear is for following the structure, and the design is independently redeveloped to the non-independence, consequently, the power assembly of electric motor car will restrict all ring edge borders overall arrangement, thereby lead to back suspension support assembly design difficulty, and the uneven shake that produces of suspension structure atress or the not strong condition that leads to the durability performance to go wrong can also appear.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a suspension structure behind pure electric vehicles power assembly for solve the shake that the suspension structure atress inequality leads to and the durability problem that intensity leads to inadequately.
The utility model provides a technical problem adopt following technical scheme:
a rear suspension structure of a power assembly of a pure electric vehicle comprises a rear suspension transition support, a rear suspension cushion assembly and a rear suspension support;
the rear suspension transition support is welded on the auxiliary frame; the rear suspension cushion assembly is fixed on the rear suspension transition bracket; the rear suspension support is fixed on the rear suspension cushion assembly and connected with the power assembly.
Furthermore, the rear suspension transition support comprises a quadrilateral fixing plate, and 4 threaded holes are formed in the fixing plate; and two side edges of the fixed plate in the vertical direction are bent towards the same direction to form a first connecting plate and a second connecting plate.
Further, the rear suspension cushion assembly comprises a connecting bracket, a cylinder framework, a rubber bushing and a first bolt; the connecting bracket is provided with 4 threaded holes, and the positions of the threaded holes of the connecting bracket correspond to the positions of the threaded holes on the fixing plate; the first bolt penetrates through the threaded hole of the connecting bracket and the threaded hole of the fixing plate to connect the connecting bracket and the fixing plate; the cylinder framework is arranged on the connecting support, and the connecting support and the cylinder framework are integrally formed; the rubber bushing is arranged inside the cylindrical framework, and an outer sleeve of the rubber bushing is in interference fit with the inner wall of the cylindrical framework; an inner sleeve is formed in the center of the rubber bushing.
Further, the first bolt is a Q150B1090 bolt standard.
Furthermore, the rear suspension bracket is integrally U-shaped and comprises a support plate, a first side plate and a second side plate; the first side plate and the second side plate are respectively vertically arranged on the supporting plate, and the first side plate and the second side plate are mutually parallel; the supporting plate, the first side plate and the second side plate are integrally formed; a first through hole, a second through hole and a third through hole are sequentially formed in the positions, corresponding to the first side plate and the second side plate, from top to bottom; the axes of the first through hole, the second through hole and the third through hole are not on the same straight line.
Further, the rear suspension bracket is connected with the rear suspension cushion assembly through a second bolt; and the rear suspension bracket is connected with a speed reducer on the power assembly through a third bolt.
Further, the second bolt is preferably a Q150B1090 bolt standard; the third bolt is preferably a Q150B08105 bolt standard.
The utility model discloses following beneficial effect has: the utility model discloses a suspension structure atress is even behind pure electric vehicles power assembly to reduce the shake of vehicle, improved bearing capacity, satisfied the requirement that the suspension atress is even and satisfy durability behind the pure electric passenger car.
Drawings
Fig. 1 is a schematic connection diagram of a rear suspension of a pure electric vehicle powertrain of the present invention;
FIG. 2 is a schematic structural diagram of the rear suspension of the power assembly of the pure electric vehicle of the present invention;
FIG. 3 is a force analysis diagram of the rear suspension of the power assembly of the pure electric vehicle according to the present invention;
FIG. 4 is an exploded view of the rear suspension of the power assembly of the pure electric vehicle of the present invention;
fig. 5 is the utility model discloses a pure electric vehicles power assembly rear mount and power assembly cooperation sketch map.
The notation in the figures means: 1-rear suspension transition support; 2-rear suspension cushion assembly; 3-rear suspension bracket; 4-auxiliary frame; 5, fixing a plate; 6-a first connecting plate; 7-a second connecting plate; 8-connecting the stent; 9-a cylindrical framework; 10-a rubber bushing; 11-a first bolt; 12-outer sleeve; 13-inner sleeve; 14-a support plate; 15-a first side panel; 16-a second side panel; 17-a first via; 18-a second through-hole; 19-a third via; 20-a second bolt; 21-a third bolt; 22-a reducer; 23-theoretical force transfer direction line; 24-force transmission line.
Detailed Description
The technical solution of the present invention will be further explained with reference to the following embodiments and accompanying drawings.
Example 1
The embodiment provides a pure electric vehicle power assembly rear suspension, which comprises a rear suspension transition support 1, a rear suspension cushion assembly 2 and a rear suspension support 3; the rear suspension transition support 1 is welded on the auxiliary frame 4; the rear suspension cushion assembly 2 is fixed on the rear suspension transition support 1; the rear suspension support 3 is fixed on the rear suspension cushion assembly 2, and the rear suspension support 3 is connected with the power assembly.
As shown in FIG. 2, the utility model discloses a pure electric vehicles powertrain rear mount's schematic structure diagram. The rear suspension transition support 1 comprises a quadrilateral fixing plate 5, and 4 threaded holes are formed in the fixing plate 5; two sides of the fixing plate 5 in the vertical direction are bent towards the same direction to form a first connecting plate 6 and a second connecting plate 7. Specifically, the edges of the first connecting plate 6 and the second connecting plate 7 are formed into a shape matched with the auxiliary frame 4, so that the rear suspension transition bracket 1 is welded more firmly.
The rear suspension cushion assembly 2 comprises a connecting bracket 8, a cylindrical framework 9, a rubber bushing 10 and a first bolt 11; the connecting bracket 8 is provided with 4 threaded holes, and the positions of the threaded holes of the connecting bracket 8 correspond to the positions of the threaded holes on the fixing plate 5; the first bolt 11 penetrates through the threaded hole of the connecting bracket 8 and the threaded hole of the fixing plate 5 to connect the connecting bracket 8 and the fixing plate 5; the cylinder framework 9 is arranged on the connecting support 8, and the connecting support 8 and the cylinder framework 9 are integrally formed; the rubber bushing 10 is arranged inside the cylindrical framework 9, and an outer sleeve 12 of the rubber bushing 10 is in interference fit with the inner wall of the cylindrical framework 9; an inner sleeve 13 is also formed in the center of the rubber bushing 10.
Preferably, the first bolt 11 is a Q150B1090 bolt standard.
In this embodiment, the rear suspension cushion assembly is used for isolating and absorbing engine vibration and road excitation, reduces deformation and received impact of a frame, reduces fatigue damage of other parts due to excessive vibration, reduces influence on people in a passenger compartment, and improves smoothness and comfort in the driving process of a vehicle.
The rear suspension bracket 3 is integrally U-shaped and comprises a support plate 14, a first side plate 15 and a second side plate 16; the first side plate 15 and the second side plate 16 are respectively vertically arranged on the support plate 14, and the first side plate 15 and the second side plate 16 are parallel to each other; the support plate 14, the first side plate 15 and the second side plate 16 are integrally formed; a first through hole 17, a second through hole 18 and a third through hole 19 are sequentially formed in the corresponding positions of the first side plate 15 and the second side plate 16 from top to bottom; the axes of the first through hole 17, the second through hole 18 and the third through hole 19 are not on the same straight line.
The rear suspension bracket 3 is connected with the rear suspension cushion assembly 2 through a second bolt 20. Specifically, the second bolt 20 sequentially passes through the third through hole 19 on the first side plate 15, the inner sleeve 13 of the rubber bushing 10 and the third through hole 19 on the second side plate 16, and fixedly connects the rear suspension bracket 3 with the rear suspension cushion assembly 2 through a nut.
The rear suspension bracket 3 is connected with a speed reducer 22 on the power assembly through a third bolt 21. Specifically, two third bolts 21 are respectively inserted through the second through hole 18 and the third through hole 19 to be coupled with the screw holes of the speed reducer 22, thereby connecting the rear suspension bracket 3 and the powertrain.
Further, the second bolt 20 is preferably a Q150B1090 bolt standard; the third bolt 21 is preferably a Q150B08105 bolt standard.
As shown in fig. 3, the rear suspension of the power assembly of the present invention bears the weight of the entire power assembly; the stress analysis is carried out on the whole, at the moment, the rear suspension of the power assembly integrally presents the stress state of a triangular structure, the principle is that a theoretical force transmission direction line 23 and a force transmission line 24 (between bolts) present a triangular state, the triangular state has stability, and the force transmission distance is also shortest. Specifically, the structure can effectively improve the driving embodiment and the whole vehicle power performance of a user, and is applied and verified on a CA6462EV1 vehicle type.
The sequence of the above embodiments is only for convenience of description and does not represent the advantages and disadvantages of the embodiments.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (7)

1. A rear suspension structure of a power assembly of a pure electric vehicle is characterized by comprising a rear suspension transition support, a rear suspension cushion assembly and a rear suspension support;
the rear suspension transition support is welded on the auxiliary frame; the rear suspension cushion assembly is fixed on the rear suspension transition bracket; the rear suspension support is fixed on the rear suspension cushion assembly and connected with the power assembly.
2. The pure electric vehicle power assembly rear suspension structure of claim 1, wherein the rear suspension transition support comprises a quadrilateral fixing plate, and the fixing plate is provided with 4 threaded holes; and two side edges of the fixed plate in the vertical direction are bent towards the same direction to form a first connecting plate and a second connecting plate.
3. The pure electric vehicle power assembly rear suspension structure according to claim 1, wherein the rear suspension cushion assembly comprises a connecting bracket, a cylindrical skeleton, a rubber bushing and a first bolt;
the connecting bracket is provided with 4 threaded holes, and the positions of the threaded holes of the connecting bracket correspond to the positions of the threaded holes on the fixing plate; the first bolt penetrates through the threaded hole of the connecting bracket and the threaded hole of the fixing plate to connect the connecting bracket and the fixing plate; the cylinder framework is arranged on the connecting support, and the connecting support and the cylinder framework are integrally formed; the rubber bushing is arranged inside the cylindrical framework, and an outer sleeve of the rubber bushing is in interference fit with the inner wall of the cylindrical framework; an inner sleeve is formed in the center of the rubber bushing.
4. A pure electric vehicle powertrain rear suspension structure as in claim 3 wherein the first bolt is a Q150B1090 bolt standard.
5. The pure electric vehicle powertrain rear suspension structure of claim 1, wherein the rear suspension bracket is generally U-shaped and includes a support plate, a first side plate and a second side plate;
the first side plate and the second side plate are respectively vertically arranged on the supporting plate, and the first side plate and the second side plate are mutually parallel; the supporting plate, the first side plate and the second side plate are integrally formed; a first through hole, a second through hole and a third through hole are sequentially formed in the positions, corresponding to the first side plate and the second side plate, from top to bottom; the axes of the first through hole, the second through hole and the third through hole are not on the same straight line.
6. The rear suspension structure of a pure electric vehicle power assembly according to claim 5, wherein the rear suspension bracket is connected with the rear suspension cushion assembly through a second bolt; and the rear suspension bracket is connected with a speed reducer on the power assembly through a third bolt.
7. A pure electric vehicle powertrain rear suspension structure as in claim 6 wherein the second bolt is preferably a Q150B1090 bolt standard; the third bolt is preferably a Q150B08105 bolt standard.
CN201920247954.0U 2019-02-27 2019-02-27 Rear suspension structure of power assembly of pure electric vehicle Active CN209870077U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920247954.0U CN209870077U (en) 2019-02-27 2019-02-27 Rear suspension structure of power assembly of pure electric vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920247954.0U CN209870077U (en) 2019-02-27 2019-02-27 Rear suspension structure of power assembly of pure electric vehicle

Publications (1)

Publication Number Publication Date
CN209870077U true CN209870077U (en) 2019-12-31

Family

ID=68953582

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920247954.0U Active CN209870077U (en) 2019-02-27 2019-02-27 Rear suspension structure of power assembly of pure electric vehicle

Country Status (1)

Country Link
CN (1) CN209870077U (en)

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