Suspension assembly for hybrid new energy vehicle

Abstract

The suspension assembly for the hybrid new energy vehicle comprises a left suspension, a right suspension and a rear suspension, the left suspension comprises a connecting base, a cylindrical shell is welded to the top of the connecting base, a support metal plate support is arranged on the upper right side of the rear end of the cylindrical shell, a left main spring is fixedly installed on the inner wall of the cylindrical shell, and a right main spring is fixedly installed on the inner wall of the cylindrical shell. A left supporting arm is arranged on the front side of the left main spring, first bosses are arranged on the left side and the right side of the left main spring, limiting pads are arranged on the left inner side wall and the right inner side wall of the left main spring, a second boss is arranged on the upper side of the left main spring, and a third boss is arranged on the lower side of the left main spring. The utility model has the advantages of good dynamic and static characteristics, meeting the NVH (Noise Vibration and Harshness) requirement of the whole vehicle and reducing abnormal sound.

Description

Technical Field

[0001] The utility model relates to the field of automobile suspension, and in particular to a suspension assembly for a hybrid new energy vehicle. Background Art

[0002] The existing new energy vehicle models are integrated into platforms, and the powertrain needs to meet the requirements of different models and different torque modes under the platform. This leads to more stringent requirements for the suspension system of hybrid new energy vehicles. The existing technology has the following problems: insufficient dynamic stiffness of the suspension assembly product installation point; platform-based high-torque models increase the suspension force, and the dynamic and static characteristics of the existing structure are difficult to meet the requirements of all models on the platform. The NVH test results of the whole vehicle are not good, and the whole vehicle has abnormal noise under the line. A hybrid vehicle suspension assembly is urgently needed to solve the above problems. Utility Model Content

[0003] In order to solve the problems existing in the background technology, the utility model proposes a suspension assembly for a hybrid new energy vehicle.

[0004] A suspension assembly for a hybrid new energy vehicle comprises a left suspension, a right suspension and a rear suspension, the left suspension comprising a connecting seat, a cylindrical shell is welded on the top of the connecting seat, a support sheet metal bracket is arranged on the upper right side of the rear end of the cylindrical shell, a left main spring is fixedly installed on the inner wall of the cylindrical shell, a left supporting arm is arranged on the front side of the left main spring, a first boss is arranged on the left and right sides of the left main spring, a limiting pad is arranged on the left and right inner walls of the left main spring, a second boss is arranged on the top wall of the left main spring, and a third boss is arranged on the bottom wall of the left main spring.

[0005] Based on the above, the surface array of the limiting pad is provided with a plurality of linear grooves, and the linear grooves are parallel to the axis of the cylindrical shell, and the two limiting pads, the second boss and the third boss are arranged in a circular array on the inner wall of the cylindrical shell.

[0006] Based on the above, the right suspension includes a right bracket, a right main spring is arranged inside the right bracket, a right support arm is arranged on the front side of the right main spring, a sealed cavity is enclosed between the right main spring and the lower half of the right bracket, the sealed cavity is filled with ethylene glycol, a partition is arranged in the sealed cavity, the partition separates the sealed cavity into two parts, an annular flow channel and a decoupling membrane are arranged under the partition, the decoupling membrane is provided with bumps and incisions, the annular flow channel is used to connect the upper and lower parts of the sealed cavity, a leather cup and a leather cup cover are arranged in the lower half of the sealed cavity, and a plurality of arc-shaped protrusions are arranged on the leather cup.

[0007] Based on the above, the right bracket is provided with a liquid injection hole connected with the sealing cavity, and a sealing steel ball is arranged in the liquid injection hole.

[0008] Based on the above, the rear suspension includes a rear bracket, a frame is fixedly installed on the right end of the rear bracket, an annular liner is fixedly installed on the inner wall of the frame, the front and rear side walls of the annular liner are integrally formed with rear main springs, a rubber sleeve is integrally formed between the two rear main springs, a main spring inner skeleton is embedded in the rubber sleeve, the main spring inner skeleton is A-shaped, and the tip is facing the right side, a fourth boss is integrally formed on the right side wall of the annular liner, a fifth boss is integrally formed on the middle part of the left end of the rubber sleeve, and a sixth boss is integrally formed on the left side wall of the annular liner.

[0009] Based on the above, a mounting hole is provided through the right half of the main spring inner frame, and two through slots are provided through the left half of the main spring inner frame.

[0010] Based on the above, a bushing outer frame is provided through the front side of the rear bracket, a bushing rubber body is provided inside the bushing outer frame, and a bushing inner frame is provided inside the bushing rubber body.

[0011] The utility model has substantial characteristics and progress compared with the prior art. Specifically, the utility model improves the dynamic and static characteristics in the X direction to meet the NVH requirements of the whole vehicle by arranging limiting structures such as the first boss and the limiting pad, the fourth boss and the right end of the main spring inner frame, the fifth boss and the sixth boss in the left suspension and the rear suspension; and in the right suspension, reinforcing ribs are arranged on the right bracket to enhance the strength of the bracket; and protrusions and incisions are added to the surface of the decoupling membrane to reduce abnormal noise caused by impact; the utility model has the advantages of good dynamic and static characteristics, meeting the NVH requirements of the whole vehicle and reducing abnormal noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the left suspension of the utility model.

[0013] Figure 2 It is a schematic diagram of the main structure of the left suspension of the utility model.

[0014] Figure 3 It is a schematic diagram of the three-dimensional structure of the right suspension of the utility model.

[0015] Figure 4 It is a schematic diagram of the top view of the right suspension structure of the utility model.

[0016] Figure 5 The utility model Figure 4 Schematic diagram of the structure cut along AA.

[0017] Figure 6 The utility model Figure 5 Schematic diagram of the structure cut along BB.

[0018] Figure 7 It is a three-dimensional structural schematic diagram of the rear suspension of the utility model.

[0019] Figure 8 It is a schematic diagram of the top view structure of the rear suspension of the utility model.

[0020] Fig. 9 The utility model Figure 8 Schematic diagram of the structure cut along CC.

[0021] Description of reference numerals: 100, left suspension; 200, right suspension; 300, rear suspension; 101, connecting seat; 102, cylindrical shell; 103, support sheet metal bracket; 104, left main spring; 105, left supporting arm; 106, first boss; 107, limit pad; 108, second boss; 109, third boss; 201, right bracket; 202, right main spring; 203, right supporting arm; 204, annular flow channel; 205, leather cup; 206 , partition; 207, sealing steel ball; 208, decoupling membrane; 209, leather cup cover; 301, rear bracket; 302, frame; 303, annular lining; 304, rear main spring; 305, rubber sleeve; 306, main spring inner frame; 307, mounting hole; 308, through groove; 309, fourth boss; 310, fifth boss; 311, sixth boss; 312, bushing outer frame; 313, bushing rubber body; 314, bushing inner frame. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-Figure 9 As shown, a suspension assembly for a hybrid new energy vehicle includes a left suspension 100, a right suspension 200 and a rear suspension 300. The left suspension 100 is assembled on the left side of the powertrain of the vehicle, connected to the EHS, the longitudinal beam of the vehicle body and the wheel bag, and adopts a circular bushing structure. The left suspension 100 includes a connecting seat 101, a cylindrical shell 102 is welded on the top of the connecting seat 101, a support sheet metal bracket 103 is arranged on the upper right side of the rear end of the cylindrical shell 102, a left main spring 104 is fixedly installed on the inner wall of the cylindrical shell 102, a left supporting arm 105 is arranged on the front side of the left main spring 104, and the left main spring 104 and the left supporting arm 105, and the left main spring 104 and the cylindrical shell 102 are all interference fit.

[0024] The left main spring 104 is provided with a first boss 106 on both sides, the left and right inner walls of the left main spring 104 are provided with a limit pad 107, the top wall of the left main spring 104 is provided with a second boss 108, and the bottom wall of the left main spring 104 is provided with a third boss 109. The surface array of the limit pad 107 is provided with a plurality of linear grooves, and the linear grooves are parallel to the axis of the cylindrical shell 102. The first boss 106 cooperates with the limit pad 107 to limit in the X+ / X- direction, improve the dynamic and static characteristics in the X direction, and meet the NVH requirements of the whole vehicle. The two limit pads 107, the second boss 108 and the third boss 109 are arranged in a circular array on the inner wall of the cylindrical shell 102.

[0025] When in use, the right suspension 200 is assembled on the right side of the powertrain of the car, connecting the engine, the subframe and the body. The right suspension 200 adopts a side-pressure T-type hydraulic suspension structure. The right suspension 200 includes a right bracket 201, a right main spring 202 is arranged inside the right bracket 201, a right supporting arm 203 is arranged on the front side of the right main spring 202, and reinforcing ribs are arranged on the right bracket 201 and the right supporting arm 203 to enhance the strength of the structure and increase the load-bearing and destructive force value of the right suspension 200. The right main spring 202 and the lower half of the right bracket 201 enclose a sealed cavity, which is filled with ethylene glycol, and a partition is arranged in the sealed cavity, and the partition is made of metal.

[0026] The partition separates the sealed cavity into two parts, an annular flow channel 204 and a decoupling membrane 208 are arranged under the partition. The annular flow channel 204 and the decoupling membrane 208 are used to connect the upper and lower parts of the sealed cavity. The lower half of the sealed cavity is provided with a leather cup 205 and a leather cup cover plate 209. The leather cup 205 is provided with a plurality of arc-shaped protrusions. The decoupling membrane 208 is provided with convex points and cutouts, so as to reduce the abnormal noise generated by the collision of the decoupling membrane during the movement of the vehicle. The right bracket 201 is provided with a liquid injection hole connected to the sealed cavity, and a sealing steel ball 207 is arranged in the liquid injection hole.

[0027] Specifically, the rear suspension 300 is assembled at the lower rear side of the powertrain of the vehicle, connecting the EHS and the subframe. The rear suspension 300 is a tie rod suspension, which adopts an integral vulcanized structure. The rear suspension 300 includes a rear bracket 301, and a frame 302 is fixedly installed on the right end of the rear bracket 301. An annular liner 303 is fixedly installed on the inner wall of the frame 302, and the front and rear side walls of the annular liner 303 are integrally formed with rear main springs 304, and the two rear main springs 304 are both inclined to the left. A rubber sleeve 305 is integrally formed between the two rear main springs 304, and a main spring inner skeleton 306 is embedded in the rubber sleeve 305, and the rubber sleeve 305 is fixed inside the rubber sleeve 305 by vulcanization.

[0028] The main spring inner frame 306 is in an A shape, with the tip facing the right side, the right side wall of the annular liner 303 is integrally formed with a fourth boss 309, the middle part of the left end of the rubber sleeve 305 is integrally formed with a fifth boss 310, and the left side wall of the annular liner 303 is integrally formed with a sixth boss 311. The right end of the main spring inner frame 306 cooperates with the fourth boss 309, and the fifth boss 310 cooperates with the sixth boss 311 to limit the position, so as to meet the NVH requirements of the whole vehicle.

[0029] In reality, a mounting hole 307 is provided through the right half of the main spring inner frame 306, and two through slots 308 are provided through the left half of the main spring inner frame 306. A bushing outer frame 312 is provided through the front side of the rear bracket 301, a bushing rubber body 313 is provided inside the bushing outer frame 312, and a bushing inner frame 314 is provided inside the bushing rubber body 313. Both ends of the bushing inner frame 314 are provided with knurling.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A suspension assembly for a hybrid new energy vehicle, characterized in that: It includes a left suspension, a right suspension and a rear suspension, the left suspension includes a connecting seat, a cylindrical shell is welded on the top of the connecting seat, a support sheet metal bracket is arranged on the upper right side of the rear end of the cylindrical shell, a left main spring is fixedly installed on the inner wall of the cylindrical shell, a left supporting arm is arranged on the front side of the left main spring, a first boss is arranged on the left and right sides of the left main spring, limiting pads are arranged on the left and right inner walls of the left main spring, a second boss is arranged on the upper side of the left main spring, and a third boss is arranged on the lower side of the left main spring.

2. The suspension assembly for hybrid new energy vehicles according to claim 1 is characterized in that: The surface array of the limiting pad is provided with a plurality of linear grooves, and the linear grooves are parallel to the axis of the cylindrical shell. The two limiting pads, the second boss and the third boss are arranged in a circular array on the inner wall of the left main spring.

3. The suspension assembly for hybrid new energy vehicles according to claim 1 is characterized in that: The right suspension includes a right bracket, a right main spring is arranged inside the right bracket, a right support arm is arranged on the front side of the right main spring, a sealed cavity is enclosed between the right main spring and the lower half of the right bracket, the sealed cavity is filled with ethylene glycol, a partition is arranged in the sealed cavity, the partition separates the sealed cavity into an upper and lower part, an annular flow channel and a decoupling membrane are arranged under the partition, the decoupling membrane is provided with protrusions and incisions, the annular flow channel and the decoupling membrane are used to connect the upper and lower parts of the sealed cavity, a leather cup and a leather cup cover are arranged in the lower half of the sealed cavity, and a plurality of arc-shaped protrusions are arranged on the leather cup.

4. The suspension assembly for hybrid new energy vehicles according to claim 3 is characterized in that: The right bracket is provided with a liquid injection hole communicated with the sealing cavity, and a sealing steel ball is installed in the liquid injection hole.

5. The suspension assembly for hybrid new energy vehicles according to claim 1 is characterized in that: The rear suspension includes a rear bracket, a frame is fixedly installed on the right end of the rear suspension, an annular liner is fixedly installed on the inner wall of the frame, the front and rear side walls of the annular liner are integrally formed with rear main springs, a rubber sleeve is integrally formed between the two rear main springs, a main spring inner skeleton is embedded in the rubber sleeve, the main spring inner skeleton is A-shaped, and the tip faces to the right, a fourth boss is integrally formed on the right side wall of the annular liner, a fifth boss is integrally formed on the middle part of the left end of the rubber sleeve, and a sixth boss is integrally formed on the left side wall of the annular liner.

6. The suspension assembly for hybrid new energy vehicles according to claim 5 is characterized in that: A mounting hole is provided through the right half of the main spring inner frame, and two through slots are provided through the left half of the main spring inner frame.

7. The suspension assembly for hybrid new energy vehicles according to claim 5 is characterized in that: A bushing outer frame is provided through the front side of the rear bracket, a bushing rubber body is provided inside the bushing outer frame, and a bushing inner frame is provided inside the bushing rubber body.

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