CN215621352U - Suspension structure of electric automobile - Google Patents
Suspension structure of electric automobile Download PDFInfo
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- CN215621352U CN215621352U CN202122084774.5U CN202122084774U CN215621352U CN 215621352 U CN215621352 U CN 215621352U CN 202122084774 U CN202122084774 U CN 202122084774U CN 215621352 U CN215621352 U CN 215621352U
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Abstract
The utility model discloses an electric automobile suspension structure, which comprises a suspension bracket, a large-head mandrel component and a small-head mandrel component, wherein the large-head mandrel component is arranged on the suspension bracket and is used for connecting an auxiliary frame, and the small-head mandrel component is arranged on the suspension bracket and is used for connecting a motor; the small-head mandrel assemblies are arranged on the suspension support in a triangular mode, rubber is added in the rigid connection area of the suspension small heads and the support, and in the later suspension NVH matching process, the modal frequency of the whole suspension can be adjusted on the premise that the rigidity of the rubber main spring bushing is not changed, so that the NVH performance is improved, the durability of the large-head mandrel is not influenced, the noise generated in the using process of a product is effectively reduced, and the product quality is improved.
Description
Technical Field
The utility model relates to the field of automobile parts, in particular to a suspension structure of an electric automobile.
Background
The power assembly suspension system is a part for mounting the power assembly on a vehicle body and a vehicle frame. The power assembly suspension system supports the power assembly, isolates and reduces vibration and noise of the power assembly, limits movement displacement of the power assembly under various working conditions, and provides good NVH performance and driving performance for a driver and passengers. With the increase of the consumption level, the requirements of customers on the vibration and the noise of the automobile are higher and higher.
Many electric automobile's suspension in the present market still establish to evolve on the basis of engine mounting and come, hardly guarantee the NVH effect of whole car. And electric automobile on the market generally has the shortcoming that the impact is felt by force in the car under some operating modes, and the travelling comfort is poor and high-frequency noise is big, its reason is that motor assembly suspension is difficult to suspension holistic rigidity, mode adjustment in NVH mediation stage for the structural performance that product output back is difficult to reach needs.
Therefore, in order to solve the above problems, an electric vehicle suspension structure is needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In view of this, according to the suspension bracket of the technical scheme, rubber is added in the rigid connection area of the suspension small head and the bracket, and in the later suspension NVH matching process, the modal frequency of the whole suspension can be adjusted on the premise of not changing the rigidity of the rubber main spring bushing, so that the NVH performance is improved, the durability of the large-head mandrel is not affected, the noise generated in the use process of a product is effectively reduced, and the product quality is improved.
A suspension structure of an electric automobile comprises a suspension bracket, a large-head mandrel assembly and a small-head mandrel assembly, wherein the large-head mandrel assembly is arranged on the suspension bracket and used for being connected with an auxiliary frame, and the small-head mandrel assembly is arranged on the suspension bracket and used for being connected with a motor; the small-head mandrel assemblies are a plurality of small-head mandrel assemblies and a plurality of large-head mandrel assemblies which are arranged on the suspension bracket in a triangular mode.
Further, the big head mandrel component comprises a main spring rubber bushing and a big head mandrel sleeved in the main spring rubber bushing; the main spring rubber bushing is fixedly connected and arranged on the support.
Furthermore, one end of the support is provided with a mounting hole for positioning and mounting the main spring rubber bushing, a positioning boss is formed in the mounting hole by protruding inwards along the radial direction, and a mounting cavity used for being matched with the positioning boss is formed on the main spring rubber bushing.
Furthermore, the cross section of the big-head core shaft is square, four side surfaces of the big-head core shaft are fixedly connected with the main spring rubber bushing, the middle part of the big-head core shaft is provided with a positioning installation hole, and a plurality of lightening holes are formed in the positioning installation hole in the circumferential direction.
Furthermore, the whole suspension bracket is in a triangular shape, and a plurality of reinforcing rib plates are arranged on the suspension bracket.
Furthermore, the small-end mandrel assemblies are three and have the same structure, and each small-end mandrel assembly comprises a small mandrel and a rubber mat arranged on the suspension bracket and used for positioning and installing the small mandrel.
Furthermore, three positioning holes for mounting the small-head mandrel component are formed in the suspension support, and the small mandrel protrudes out of the surface of the suspension support.
The utility model has the beneficial effects that: according to the suspension support, rubber is added in the rigid connection area of the suspension small head and the support, and in the later suspension NVH matching process, the modal frequency of the whole suspension can be adjusted on the premise of not changing the rigidity of the rubber main spring bushing, so that the NVH performance is improved, the durability of the large head mandrel is not affected, the noise generated in the use process of a product is effectively reduced, and the product quality is improved.
Drawings
The utility model is further described below with reference to the following figures and examples:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a top view of the present invention.
Detailed Description
FIG. 1 is a schematic view of the overall structure of the present invention; fig. 2 is a schematic diagram of a front wall middle plate, and as shown in the figure, an electric vehicle suspension structure includes a suspension bracket 1, a large-head mandrel assembly arranged on the suspension bracket for connecting an auxiliary frame, and a small-head mandrel assembly arranged on the suspension bracket for connecting a motor; the small-head mandrel assemblies are multiple, and the small-head mandrel assemblies and the large-head mandrel assemblies are arranged on the suspension bracket in a triangular shape; according to the suspension support, rubber is added in the rigid connection area of the suspension small head and the support, and in the later suspension NVH matching process, the modal frequency of the whole suspension can be adjusted on the premise of not changing the rigidity of the rubber main spring bushing, so that the NVH performance is improved, the durability of the large head mandrel is not affected, the noise generated in the use process of a product is effectively reduced, and the product quality is improved.
In this embodiment, the big-end mandrel assembly includes a main spring rubber bushing 5 and a big-end mandrel 2 sleeved in the main spring rubber bushing; and the main spring rubber bushing 5 is fixedly connected and arranged on the bracket. The big end mandrel component is connected with the auxiliary frame through a bolt, the big end mandrel is nested with the support 1 through a main spring rubber bushing 5, the suspended small end mandrel component is connected with the motor through a bolt, and the small end is nested with the support through a rubber pad 4.
In this embodiment, one end of the bracket 1 is provided with a mounting hole for positioning and mounting a main spring rubber bushing, a positioning boss is formed in the mounting hole by protruding inward along the radial direction, and a mounting cavity 51 used for cooperating with the positioning boss is formed on the main spring rubber bushing. The main spring rubber bushing 5 is provided with a mounting cavity 51 in the circumferential direction, so that the main spring rubber bushing and the bracket are positioned, connected and mounted more closely and reliably when the main spring rubber bushing and the bracket are subjected to vulcanization processing.
In this embodiment, the cross section of the big-head core shaft is square, four side surfaces of the big-head core shaft are fixedly connected with the main spring rubber bushing, the middle of the big-head core shaft is provided with a positioning installation hole 22, and the positioning installation hole is provided with a plurality of lightening holes 21 in the circumferential direction. The middle part is provided with a positioning mounting hole 22, so that the connecting and mounting with other parts are convenient, and the lightening holes arranged in the circumferential direction realize light-weight production.
In this embodiment, the suspension bracket is entirely triangular, and a plurality of reinforcing ribs 11 are provided on the suspension bracket. The structural strength of the product is improved by the arrangement of the plurality of reinforcing rib plates 11, the suspension bracket is formed by casting, the manufacturing process is simple, and the processing and forming are convenient.
In this embodiment, the microcephaly dabber subassembly is three and three microcephaly dabber subassembly structures is the same, microcephaly dabber subassembly includes microcephaly spindle 3 and sets up the cushion 4 that is used for fixing a position the installation microcephaly dabber on the suspension support, and three microcephaly dabber subassemblies that the structure is the same are arranged in homonymy direction, form the triangle-shaped structure with major part dabber subassembly, have effectively promoted the holistic structural strength of product.
In this embodiment, the suspension bracket is provided with three positioning holes for mounting the small-end mandrel assembly, and the small mandrel 3 protrudes out of the surface of the suspension bracket. The protruding surface of the small mandrel 3 realizes the positioning connection between the parts, and the assembly is convenient.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (7)
1. The utility model provides an electric automobile suspension structure which characterized in that: the auxiliary frame comprises a suspension bracket, a big-end mandrel component arranged on the suspension bracket and used for connecting an auxiliary frame, and a small-end mandrel component arranged on the suspension bracket and used for connecting a motor; the small-head mandrel assemblies are a plurality of small-head mandrel assemblies and a plurality of large-head mandrel assemblies which are arranged on the suspension bracket in a triangular mode.
2. The electric vehicle suspension structure according to claim 1, characterized in that: the big-end mandrel component comprises a main spring rubber bushing and a big-end mandrel sleeved in the main spring rubber bushing; the main spring rubber bushing is fixedly connected and arranged on the support.
3. The electric vehicle suspension structure according to claim 2, characterized in that: the mounting hole that is used for location installation main spring rubber bush is seted up to the one end of support, along the inside arch formation location boss of radial direction in the mounting hole, be formed with on the main spring rubber bush and be used for with the installation cavity of location boss cooperation use.
4. The electric vehicle suspension structure according to claim 3, characterized in that: the section of the big-head mandrel is square, four side faces of the big-head mandrel are fixedly connected with the main spring rubber bushing, a positioning mounting hole is formed in the middle of the big-head mandrel, and a plurality of lightening holes are formed in the positioning mounting hole in the circumferential direction.
5. The electric vehicle suspension structure according to claim 4, characterized in that: the suspension bracket is integrally triangular, and a plurality of reinforcing rib plates are arranged on the suspension bracket.
6. The electric vehicle suspension structure according to claim 5, characterized in that: the small-end mandrel assemblies are three and have the same structure, and each small-end mandrel assembly comprises a small mandrel and a rubber mat arranged on the suspension bracket and used for positioning and installing the small mandrel.
7. The electric vehicle suspension structure according to claim 6, characterized in that: three positioning holes for mounting the small-head mandrel component are formed in the suspension bracket, and the small mandrel protrudes out of the surface of the suspension bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122084774.5U CN215621352U (en) | 2021-08-31 | 2021-08-31 | Suspension structure of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122084774.5U CN215621352U (en) | 2021-08-31 | 2021-08-31 | Suspension structure of electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215621352U true CN215621352U (en) | 2022-01-25 |
Family
ID=79904982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122084774.5U Active CN215621352U (en) | 2021-08-31 | 2021-08-31 | Suspension structure of electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215621352U (en) |
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2021
- 2021-08-31 CN CN202122084774.5U patent/CN215621352U/en active Active
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