CN218316219U

CN218316219U - Suspension structure of electric automobile

Info

Publication number: CN218316219U
Application number: CN202222696785.3U
Authority: CN
Inventors: 杨圣利; 张凯; 马涛锋; 杨林利
Original assignee: Chery New Energy Automobile Co Ltd
Current assignee: Chery New Energy Automobile Co Ltd
Priority date: 2022-10-13
Filing date: 2022-10-13
Publication date: 2023-01-17
Anticipated expiration: 2032-10-13

Abstract

The utility model discloses an electric automobile suspension structure, including skeleton, sleeve pipe and main spring assembly, sleeve pipe fixed connection is on the skeleton, and main spring assembly pressure equipment is in the sleeve pipe, and the inner tube of main spring assembly passes through bolted connection on power assembly, and the one end of skeleton is connected on the automobile body, and the other end of skeleton passes through the inner tube connection of main spring assembly on power assembly. The utility model has simple structure, low manufacturing cost and short development period; and the problem of main spring cracking and NVH caused by the fact that split power is converted into a three-in-one power assembly can be solved. The main spring adopts a central symmetry structure, so that the stress of the main spring is uniform, and the service life of the main spring is prolonged.

Description

Suspension structure of electric automobile

Technical Field

The utility model belongs to the technical field of the new energy automobile, concretely relates to electric automobile suspension structure.

Background

The existing motor, the reducer and the electric controller are fixed through an external structure completed as a whole, and the main spring of the rear suspension of the three-in-one assembly of the motor, the reducer and the electric controller has the problems of cracking and abnormal sound. Aiming at the problem, measures such as amplifying the size of a main spring, adopting an asymmetric main spring structure and the like are mostly adopted at present, but the size of the main spring can cause a suspension system to occupy more space, if a moving project causes more peripheral part association changes, the development range is enlarged, the cost is increased, the main spring adopting the asymmetric main spring structure is unevenly stressed so as to be beneficial to long-term service life, and the cost is reduced due to the fact that a casting is unfavorable.

SUMMERY OF THE UTILITY MODEL

To the not enough that exists among the prior art, the utility model aims to provide an electric automobile suspension structure simple structure, convenient to use, with low costs solves the problem of main spring fracture, abnormal sound.

In order to achieve the above purpose, the technical scheme of the utility model is that: the utility model provides an electric automobile suspension structure, includes skeleton, sleeve pipe and main spring assembly, and sleeve pipe fixed connection is on the skeleton, and main spring assembly pressure equipment is in the sleeve pipe, and the inner tube of main spring assembly passes through bolted connection on power assembly, and the one end of skeleton is connected on the automobile body, and the other end of skeleton passes through the inner tube connection of main spring assembly on power assembly.

Furthermore, the main spring assembly comprises an outer pipe, a main spring and an inner pipe, the main spring and the outer pipe are sequentially arranged from inside to outside, the main spring is sleeved on the inner pipe, the outer pipe is sleeved on the main spring, and the main spring, the inner pipe and the outer pipe are connected through vulcanization.

Furthermore, the outer tube is press-fitted in the sleeve, and the outer wall of the outer tube is tightly attached to the inner wall of the sleeve.

Furthermore, the outer diameter of the inner pipe is larger than one third of the inner diameter of the outer pipe and is smaller than or equal to one half of the inner diameter of the outer pipe.

Furthermore, the type of the restriction structure is arranged on the main spring, the type of the restriction structure is uniformly distributed along the circumference of the main spring, the type of the restriction structure is a hollow structure, and the main spring is a centrosymmetric structure.

Further, the main spring is further provided with limiting rubber, the limiting rubber is arranged between the type of structure and the inner tube, one side of the limiting rubber is attached to the outer wall of the inner tube, and the other side of the limiting rubber is attached to the top of the type of structure.

Further, the suspension structure still includes welded plate and reinforcing plate, and the reinforcing plate welding is on the skeleton, and the skeleton welding is on the welded plate.

Adopt the utility model discloses technical scheme's advantage does:

1. the utility model has simple structure, low manufacturing cost and short development period; and the main spring cracking problem and the NVH problem caused by the fact that split power is converted into a three-in-one power assembly can be solved. The main spring adopts a central symmetry structure, so that the stress of the main spring is uniform, and the service life of the main spring is prolonged.

2. The arrangement of the reinforcing plate of the utility model can improve the structural strength and the connection stability of the whole suspension; the limit rubber is arranged, so that the limit deformation of the main spring rubber can be reduced; the outer diameter of the inner pipe is increased, the stress area of the rubber can be increased under the same condition, and the stress concentration is reduced; the main spring cracking and abnormal sound problems are solved.

Drawings

The invention will be described in further detail with reference to the following drawings and detailed description:

FIG. 1 is a schematic view of the interior of the suspension structure of the present invention;

fig. 2 is a schematic view of the suspension structure of the utility model.

The labels in the above figures are: 1. a framework; 2. a sleeve; 3. an outer tube; 4. a main spring; 41. a coding rate type structure; 42. limiting rubber; 5. an inner tube; 6. welding the plate; 7. a reinforcing plate.

Detailed Description

In the present invention, it is to be understood that the term "length"; "Width"; "Up"; "Down"; "front"; "Back"; "left"; "Right"; "vertical"; "horizontal"; "Top"; "bottom" "inner"; "outer"; "clockwise"; "counterclockwise"; "axial"; "planar direction"; the directional or positional relationship indicated as "circumferential" or the like is based on the directional or positional relationship shown in the drawings, and is only for convenience of description and simplified description, and does not indicate or imply that the device or element referred to must have a particular orientation; constructed and operative in a particular orientation and therefore should not be construed as limiting the invention.

As shown in fig. 1 and 2, an electric vehicle suspension structure includes a framework 1, a sleeve 2 and a main spring assembly, wherein the sleeve 2 is fixedly connected to the framework 1, the main spring assembly is press-fitted in the sleeve 2, an inner tube 5 of the main spring assembly is connected to a power assembly through a bolt, one end of the framework 1 is connected to a vehicle body, and the other end of the framework 1 is connected to the power assembly through the inner tube 5 of the main spring assembly. The utility model has simple structure, low manufacturing cost and short development period; and the main spring cracking problem and the NVH problem caused by the fact that split power is converted into a three-in-one power assembly can be solved. The main spring adopts a central symmetry structure, so that the stress of the main spring is uniform, and the service life of the main spring is prolonged.

The main spring assembly comprises an outer tube 3, a main spring 4 and an inner tube 5, the main spring 4 and the outer tube 3 are sequentially arranged from inside to outside, the main spring 4 is sleeved on the inner tube 5, the outer tube 3 is sleeved on the main spring 4, and the main spring 4 is connected with the inner tube 5 and the outer tube 3 through vulcanization. The outer tube 3 is press-fitted in the sleeve 2, and the outer wall of the outer tube 3 is tightly attached to the inner wall of the sleeve 2. The vibration of the vehicle body and the road surface is transmitted to the framework and the main spring, and the noise and the vibration of the power assembly are transmitted to the main spring by the inner pipe.

The outer diameter of the inner tube 5 is greater than one third of the inner diameter of the outer tube 3 and less than or equal to one half of the inner diameter of the outer tube 3. By enlarging the inner pipe, the stress area of the rubber can be increased under the same condition, and the stress concentration is reduced.

The type structure 41 on the main spring 4 is uniformly distributed along the circumference of the main spring 4, the type structure 41 is of a hollow structure, the main spring 4 is of a centrosymmetric structure, and the force on the main spring is uniform, so that the life of the main spring is prolonged. And the width of the main spring structural rib is increased by the structure.

The main spring 4 is further provided with limiting rubber 42, the limiting rubber 42 is arranged between the coding and coding structure and the inner tube 5, one side of the limiting rubber 42 is attached to the outer wall of the inner tube 5, and the other side of the limiting rubber 42 is attached to the top of the coding and coding structure. The increase of the stopper rubber 42 can reduce the limit deformation amount of the rubber.

The suspension structure further comprises a welding plate 6 and a reinforcing plate 7, wherein the reinforcing plate 7 is welded on the framework, and the framework 1 is welded on the welding plate 6. The arrangement of the reinforcing plate 7 improves the structural strength and the connection stability of the whole suspension.

The framework 1 is welded with the welding plate 6, the framework 1 is welded with the sleeve 2, the sleeve 2 is pressed with the outer pipe 3, the outer pipe 3 is vulcanized with the main spring 4, and the main spring 4 is vulcanized with the inner pipe 5.

One end of the framework is connected with the vehicle body through three fixed points, and the other end of the framework is connected with the movable main through an inner pipe of the main spring through a bolt; the vibration of the vehicle body and the road surface is transmitted to the framework and the main spring, and the noise and the vibration of the power assembly are transmitted to the main spring by the inner pipe.

The utility model has simple structure, low manufacturing cost and short development period; and the main spring cracking problem and the NVH problem caused by the fact that split power is converted into a three-in-one power assembly can be solved.

The utility model discloses under the condition that does not change former suspension material and overall dimension, through changing the embedded reinforcing plate of rubber main spring structure and skeleton and solve the actual problem, compromise split type power assembly and trinity power assembly system simultaneously.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial improvements can be made without the technical solutions of the present invention, or the present invention can be directly applied to other occasions without the improvements, and all are within the protection scope of the present invention.

Claims

1. The utility model provides an electric automobile suspension structure which characterized in that: the automobile power assembly comprises a framework (1), a sleeve (2) and a main spring assembly, wherein the sleeve (2) is fixedly connected onto the framework (1), the main spring assembly is pressed in the sleeve (2), an inner tube (5) of the main spring assembly is connected onto the power assembly through a bolt, one end of the framework (1) is connected onto an automobile body, and the other end of the framework (1) is connected onto the power assembly through the inner tube (5) of the main spring assembly.

2. The suspension structure of an electric vehicle according to claim 1, characterized in that: the main spring assembly comprises an outer tube (3), a main spring (4) and an inner tube (5), the main spring (4) and the outer tube (3) are sequentially arranged from inside to outside, the main spring (4) is sleeved on the inner tube (5), the outer tube (3) is sleeved on the main spring (4), and the main spring (4) is connected with the inner tube (5) and the outer tube (3) through vulcanization.

3. The suspension structure of an electric vehicle according to claim 2, characterized in that: the outer tube (3) is pressed in the sleeve (2), and the outer wall of the outer tube (3) is tightly attached to the inner wall of the sleeve (2).

4. The suspension structure of an electric vehicle according to claim 3, characterized in that: the outer diameter of the inner pipe (5) is larger than one third of the inner diameter of the outer pipe (3) and is smaller than or equal to one half of the inner diameter of the outer pipe (3).

5. The suspension structure of an electric vehicle according to claim 4, wherein: the coding and decoding type structure is characterized in that the main spring (4) is provided with the coding and decoding type structure (41), the coding and decoding type structure is uniformly distributed along the circumference of the main spring (4), the coding and decoding type structure (41) is a hollow structure, and the main spring (4) is a centrosymmetric structure.

6. The suspension structure of an electric vehicle according to claim 5, characterized in that: the input type structure is characterized in that the main spring (4) is further provided with limiting rubber (42), the limiting rubber (42) is arranged between the inner tube (5) and the type structure, one side of the limiting rubber (42) is attached to the outer wall of the inner tube (5), and the other side of the limiting rubber (42) is attached to the top of the type structure.

7. The suspension structure of an electric vehicle according to claim 1 or 6, characterized in that: the suspension structure further comprises a welding plate (6) and a reinforcing plate (7), the reinforcing plate (7) is welded on the framework (1), and the framework (1) is welded on the welding plate (6).