Driving motor right support and suspension system

Abstract

The invention relates to a driving motor right support and a suspension system, and belongs to the technical field of electric automobile suspension systems, the driving motor right support comprises a mounting plate, the mounting plate comprises a top plate and a side plate, the top plate and the side plate are mutually connected to form an L-shaped structure, and at least two mounting holes are formed in the side plate; the reinforcing ribs comprise longitudinal rib groups and transverse rib groups, the longitudinal rib groups are vertically and fixedly connected with the top plate and the side plates, the transverse rib groups are vertically and fixedly connected with the side plates, the transverse rib groups and the longitudinal rib groups are fixedly connected with each other to form a latticed structure, and at least one mounting hole is located in a mesh of the latticed structure. Therefore, the longitudinal rib groups can lead the force borne by the top plate to the mounting holes below the side plates, and meanwhile, the longitudinal rib groups and the transverse rib groups are connected in a welded manner to form the latticed structure, so that the top plate and the side plates can be well reinforced, the force transmission can be effectively guided, and the stress around the mounting holes in the area covered by the latticed structure can be decomposed; the ratio of peripheral stress of the mounting hole is reduced, so that the stress design requirement is met.

Description

Technical Field

[0001] The present application relates to the technical field of electric vehicle suspension systems, and in particular to a right bracket of a drive motor and a suspension system. Background Art

[0002] The suspension system of an electric vehicle has the functions of isolating vibration, supporting and positioning the drive motor, protecting the drive motor, and overcoming the reaction force generated by the motor torque output; this requires that the components of the suspension system must have sufficient stiffness, strength, mode and reliability.

[0003] In engineering applications, it is often encountered that the same drive motor assembly is installed in different vehicle models, such as light trucks, VAN vehicles, sedans, etc., and different vehicle models have quite different requirements for the layout of the drive motor, so the mounting holes connecting the drive motor and the mounting bracket are difficult to take into account the above-mentioned vehicle models at the same time.

[0004] In particular, the mounting holes of the right bracket of the drive motor are mainly on the mounting surface parallel to the ZOX plane of the vehicle and are mainly arranged in the Z direction. In addition, when the distance between the mounting holes in the X direction is small, the peripheral stress of individual mounting holes in the suspension bracket design will be greater than the allowable stress of the material, thereby failing to meet the design requirements. Summary of the invention

[0005] In response to the deficiencies or one of the deficiencies raised by the above-mentioned background technology, an embodiment of the present application provides a right bracket of a driving motor and a suspension system, so that the right bracket of the driving motor can reasonably guide the distribution of force and divert the stress in the area with greater stress to meet the design requirements of installation stress.

[0006] In a first aspect, an embodiment of the present application provides a right bracket of a driving motor, comprising:

[0007] A mounting plate, comprising a top plate and a side plate, wherein the top plate and the side plate are connected to each other to form an "L"-shaped structure, and the side plate is provided with at least two mounting holes for connecting the motor assembly;

[0008] The reinforcing ribs include a longitudinal rib group vertically fixedly connected to the top plate and the side plates, and a transverse rib group vertically fixedly connected to the side plates, the transverse rib group and the longitudinal rib group are fixedly connected to each other to form a grid structure, and at least one of the mounting holes is located in a mesh of the grid structure.

[0009] In the first aspect, in some embodiments, the longitudinal rib group includes a first longitudinal rib, a second longitudinal rib and a third longitudinal rib, the second longitudinal rib is located between the first longitudinal rib and the third longitudinal rib, the second longitudinal rib is away from one end of the side plate and is fixedly connected to the first longitudinal rib;

[0010] The transverse reinforcement group includes a first transverse reinforcement and a second transverse reinforcement, wherein two ends of the first transverse reinforcement are respectively fixedly connected to the second longitudinal reinforcement and the third longitudinal reinforcement, and two ends of the second transverse reinforcement are respectively fixedly connected to the first longitudinal reinforcement and the third longitudinal reinforcement.

[0011] In the first aspect, in some embodiments, a first hole located between the first and second longitudinal ribs, and a second hole located between the second and third longitudinal ribs are provided on the top plate, and a first bolt is installed in the first hole, and a second bolt is installed in the second hole.

[0012] In the first aspect, in some embodiments, the mounting holes include a third hole, a fourth hole and a fifth hole distributed from top to bottom, the third hole is located between the first transverse rib and the second transverse rib, and the fourth hole is located at the lower side of the second transverse rib and between the first longitudinal rib and the third longitudinal rib.

[0013] In the first aspect, in some embodiments, the first longitudinal reinforcement includes a first upper plate, a first middle plate and a first lower plate which are welded in sequence, the cross-sectional area of ​​the first upper plate gradually decreases from top to bottom, and the first middle plate extends obliquely toward the third longitudinal reinforcement and is welded to the second longitudinal reinforcement and the second transverse reinforcement respectively.

[0014] On the first aspect, in some embodiments, the second longitudinal rib includes a second upper plate and a second lower plate that are welded to each other in sequence, the second upper plate is welded to the first transverse rib and its cross-sectional area gradually decreases from top to bottom, and the second lower plate is inclined toward the first middle plate and is welded to the first middle plate.

[0015] In the first aspect, in some embodiments, the third longitudinal reinforcement includes a third upper plate, a third middle plate and a third lower plate which are welded in sequence, the third upper plate is welded to the first transverse reinforcement and the cross-sectional area gradually decreases from top to bottom, and the third middle plate is welded to the second transverse reinforcement.

[0016] In the first aspect, some embodiments further include a connecting plate, wherein each side of the connecting plate is respectively welded to the second longitudinal rib, the first longitudinal rib, the second transverse rib and the third longitudinal rib, and an end of the first transverse rib away from the side plate is welded to the connecting plate.

[0017] In the first aspect, in some embodiments, the side plate has an outer contour matching the first longitudinal rib, and the connecting plate is provided with a clearance hole located between the first transverse rib and the second transverse rib;

[0018] The side plate is provided with a first paint through hole located on the upper side of the first transverse rib, the first transverse rib is provided with a second paint through hole, and the second transverse rib is provided with a third paint through hole.

[0019] In a second aspect, an embodiment of the present application provides a suspension system, including:

[0020] A vehicle frame, the vehicle frame comprising a left longitudinal beam assembly and a right longitudinal beam assembly which are spaced apart from each other, and a sub-frame assembly which is fixedly connected between the left longitudinal beam assembly and the right longitudinal beam assembly;

[0021] A motor assembly, the motor assembly being located at the front side of the subframe assembly and between the left longitudinal beam assembly and the right longitudinal beam assembly;

[0022] A suspension unit, the suspension unit comprising a left bracket connected to the left longitudinal beam assembly and a right bracket connected to the right longitudinal beam assembly;

[0023] A left elastic bracket assembly connected to the left bracket, and a right elastic bracket assembly connected to the right bracket;

[0024] A left drive motor bracket connected between the left drive motor elastic bracket assembly and the motor assembly, and a right drive motor bracket as described in any of the above items connected between the right drive motor elastic bracket assembly and the motor assembly;

[0025] A rear suspension bracket connected to the subframe assembly, and a rear suspension assembly connected between the rear suspension bracket and the motor assembly.

[0026] The beneficial effects of the technical solution provided by this application include:

[0027] An embodiment of the present application provides a right bracket and suspension system for a driving motor. The right bracket of the driving motor of the present application is provided with a mounting plate and reinforcing ribs. The mounting plate includes a top plate and a side plate. The top plate and the side plates are interconnected to form an "L"-shaped structure. The side plate is provided with at least two mounting holes for connecting a motor assembly. The reinforcing ribs include a longitudinal rib group vertically fixedly connected to both the top plate and the side plate, and a transverse rib group vertically fixedly connected to the side plate. The transverse rib group and the longitudinal rib group are fixedly connected to each other to form a grid structure, and at least one mounting hole is located in the mesh of the grid structure.

[0028] Therefore, the longitudinal reinforcement group can lead the force borne by the top plate to the mounting holes under the side plates. At the same time, the longitudinal reinforcement group and the transverse reinforcement group are welded to each other to form a grid structure, which can have a good reinforcement effect on the top plate and the side plates, effectively guide the transfer of force, decompose the stress around the mounting holes in the area covered by the grid structure, and reduce the ratio of the stress around the mounting holes, thereby meeting the stress design requirements, so that the right bracket of the drive motor has the advantages of simple structure, ingenious design, stable structure, good reliability, strong bearing capacity, lightweight, low cost and easy assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 This is a schematic diagram of the structure of the right bracket of the driving motor according to an embodiment of the present application;

[0031] Figure 2 A schematic diagram of the connection between the longitudinal reinforcement group and the transverse reinforcement group in an embodiment of the present application;

[0032] Figure 3 This is a schematic diagram of the structure of the mounting plate of an embodiment of the present application;

[0033] Figure 4 This is a schematic diagram of the structure of the longitudinal reinforcement group of an embodiment of the present application;

[0034] Figure 5 This is a schematic diagram of the structure of the connecting plate of an embodiment of the present application;

[0035] Figure 6 A schematic diagram of the distribution of mounting holes on the side panel of an embodiment of the present application;

[0036] Figure 7 A schematic diagram of the connection between the connecting plate and the first transverse rib in an embodiment of the present application;

[0037] Figure 8 Schematic diagram of the structure of the suspension system of the embodiment of the present application.

[0038] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0039] 1. Motor assembly; 2. Left bracket; 3. Left elastic bracket assembly; 4. Drive motor left bracket; 5. Right bracket; 6. Right elastic bracket assembly; 7. Drive motor right bracket; 8. Rear suspension assembly; 9. Rear suspension bracket; 10. Left longitudinal beam assembly; 11. Right longitudinal beam assembly; 12. Subframe assembly;

[0040] 71, mounting plate; 72, first longitudinal rib; 73, second longitudinal rib; 74, third longitudinal rib; 75, first transverse rib; 751, second paint hole; 76, second transverse rib; 761, third paint hole; 77, connecting plate; 771, clearance hole; 771-775, edge; 78-1, first bolt; 78-2, second bolt;

[0041] 711, top plate; 7111, first hole; 7112, second hole; 712, side plate; 7121, first paint hole; 7122, third hole; 7123, fourth hole; 7124, fifth hole; 7125, outer contour; 721, first upper plate; 722, first middle plate; 723, first lower plate; 731, second upper plate; 732, second lower plate; 741, third upper plate; 742, third middle plate; 743, third lower plate. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0043] In response to the deficiencies or one of the deficiencies raised by the above-mentioned background technology, an embodiment of the present application provides a right bracket of a driving motor and a suspension system, so that the right bracket of the driving motor can reasonably guide the distribution of force and divert the stress in the area with greater stress to meet the design requirements of installation stress.

[0044] See also Figures 1 to 7 As shown, the first aspect of the embodiment of the present application provides a right bracket of a driving motor, comprising:

[0045] The mounting plate 71 includes a top plate 711 and a side plate 712, the top plate 711 and the side plate 712 are connected to each other to form an "L"-shaped structure, and the side plate 712 is provided with at least two mounting holes for connecting the motor assembly 1;

[0046] The reinforcing ribs include a longitudinal rib group vertically fixedly connected to the top plate 711 and the side plate 712, and a transverse rib group vertically fixedly connected to the side plate 712. The transverse rib group and the longitudinal rib group are fixedly connected to each other to form a grid structure, and at least one mounting hole is located in the mesh of the grid structure.

[0047] The right bracket 7 of the driving motor of the embodiment of the present application is provided with a mounting plate 71, and the mounting plate 71 includes a top plate 711 and a side plate 712 connected in an integral manner, and the angle between the two is a right angle. The top plate 711 is connected to the right elastic bracket assembly 6 through a fastener, and the side plate 712 is connected to the motor assembly 1 through a mounting hole. A longitudinal rib group and a transverse rib group are vertically welded on the side plate 712, and the top end of the longitudinal rib group is vertically welded to the top plate 711, so that the force borne by the top plate 711 can be directed to the mounting hole below.

[0048] At the same time, the longitudinal reinforcement group and the transverse reinforcement group are welded to each other to form a grid structure, and the mounting holes are arranged in the meshes of the grid structure. Since the grid structure has a good reinforcement effect, it can effectively guide the transmission of force, decompose the stress around the mounting holes covered by the grid structure area, and reduce the ratio of the stress around the mounting holes, so that the right bracket 7 of the drive motor can meet the stress design requirements.

[0049] Exemplarily, in this example, after the right bracket 7 of the driving motor is installed, the side plate 712 is parallel to the longitudinal plane XOZ of the vehicle. Figure 6 The X-axis direction is the length (front and back) direction of the vehicle, and the Z-axis direction is the height (up and down) direction of the vehicle.

[0050] The mounting holes include a third hole 7122, a fourth hole 7123 and a fifth hole 7124, and the distribution of the third hole 7122, the fourth hole 7123 and the fifth hole 7124 tends to be in the Z direction; the distance C between the third hole 7122 and the fourth hole 7123 in the Z direction is greater than 60 mm, and the distance A in the X direction is greater than 30 mm; the distance D between the third hole 7122 and the fifth hole 7124 in the Z direction is greater than 150 mm, and the distance B in the X direction is greater than 25 mm.

[0051] According to CAE analysis, the stress around the third hole 7122 is greater than 800MPa, the stress around the fourth hole 7123 is greater than 400Mpa, and the stress around the fifth hole 7124 is greater than 150Mpa, and the stress around the third hole 7122 is the greatest. Therefore, in order to decompose the stress around the third hole 7122, the third hole 7122 is set in the middle area of ​​the side plate 712 and is located in the grid surrounded by the longitudinal reinforcement group and the transverse reinforcement group.

[0052] The stress around the third hole 7122 can be reduced to below 450MPa; with the reinforcement of the longitudinal and transverse reinforcement groups, the stress around the fourth hole 7123 and the fifth hole 7124 is also greatly reduced, effectively reducing the stress ratio around the three holes. When welding the bracket, beam steel of DL510 or above can be selected, and its allowable stress is greater than 510Mpa, so it can meet the bracket design requirements.

[0053] In some optional embodiments, see Figures 1 to 7 As shown, the embodiment of the present application provides a right bracket of a driving motor, wherein the longitudinal rib group of the right bracket 7 of the driving motor includes a first longitudinal rib 72, a second longitudinal rib 73 and a third longitudinal rib 74, wherein the second longitudinal rib 73 is located between the first longitudinal rib 72 and the third longitudinal rib 74, and the second longitudinal rib 73 is away from one end of the side plate 712 and fixedly connected to the first longitudinal rib 72;

[0054] The transverse reinforcement group includes a first transverse reinforcement 75 and a second transverse reinforcement 76 . The two ends of the first transverse reinforcement 75 are fixedly connected to the second longitudinal reinforcement 73 and the third longitudinal reinforcement 74 , respectively. The two ends of the second transverse reinforcement 76 are fixedly connected to the first longitudinal reinforcement 72 and the third longitudinal reinforcement 74 , respectively.

[0055] The first longitudinal rib 72, the second longitudinal rib 73 and the third longitudinal rib 74 of the embodiment of the present application are used to guide the force borne by the top plate 711 to the periphery of the mounting hole on the side plate 712, thereby improving the overall modality of the bracket and reducing the stress requirements. Among them, the second longitudinal rib 73 is far away from one end of the side plate 712 and is fixedly connected to the first longitudinal rib 72, so that the force of the second longitudinal rib 73 can be guided to the first longitudinal rib 72, thereby improving the overall modality.

[0056] At the same time, the two ends of the first transverse rib 75 are welded to the second longitudinal rib 73 and the third longitudinal rib 74 respectively, and the two ends of the second transverse rib 76 are welded to the first longitudinal rib 72 and the third longitudinal rib 74 respectively, thereby forming a grid structure. The mounting holes on the side panel 712 can be arranged in the mesh of the grid structure, thereby effectively decomposing the stress around the mounting holes and reducing the ratio of the stress around the mounting holes, so that the right bracket 7 of the drive motor can meet the design requirements.

[0057] In some optional embodiments, see Figures 1 to 7 As shown, an embodiment of the present application provides a right bracket of a driving motor, and a first hole 7111 located between the first longitudinal rib 72 and the second longitudinal rib 73, and a second hole 7112 located between the second longitudinal rib 73 and the third longitudinal rib 74 are provided on the top plate 711 of the right bracket 7 of the driving motor, and the first hole 7111 is installed with a first bolt 78-1, and the second hole 7112 is installed with a second bolt 78-2.

[0058] The top plate 711 of the embodiment of the present application is provided with a first hole 7111 and a second hole 7112. The first bolt 78-1 can be welded in the first hole 7111 in advance, and the second bolt 78-2 can be welded in the first hole 7111 in advance, so as to facilitate fixing the right elastic bracket assembly 6 to the top plate 711 by the first bolt 78-1 and the second bolt 78-2.

[0059] The first hole 7111 is located between the first longitudinal rib 72 and the second longitudinal rib 73, and can effectively direct the force borne by the first bolt 78-1 to the first longitudinal rib 72 and the second longitudinal rib 73; the second hole 7112 is located between the second longitudinal rib 73 and the third longitudinal rib 74, and can effectively direct the force borne by the second bolt 78-2 to the second longitudinal rib 73 and the third longitudinal rib 74, so that the larger stress borne by the top plate 711 can be diverted, thereby meeting the design requirements of stress.

[0060] In some optional embodiments, see Figures 1 to 7As shown, an embodiment of the present application provides a right bracket of a driving motor, and the mounting holes of the right bracket 7 of the driving motor include a third hole 7122, a fourth hole 7123 and a fifth hole 7124 distributed from top to bottom, the third hole 7122 is located between the first transverse rib 75 and the second transverse rib 76, and the fourth hole 7123 is located on the lower side of the second transverse rib 76 and between the first longitudinal rib 72 and the third longitudinal rib 74.

[0061] The embodiment of the present application sets the relative positions of the holes and the ribs so that the first longitudinal rib 72 can guide a portion of the force borne by the first bolt 78-1 to the vicinity of the third hole 7122, the fourth hole 7123 and the fifth hole 7124, the second longitudinal rib 73 can guide a portion of the force borne by the first bolt 78-1 and the second bolt 78-2 to the vicinity of the third hole 7122, and the third longitudinal rib 74 can guide the force borne by the second bolt 78-2 to the vicinity of the third hole 7122, the fourth hole 7123 and the fifth hole 7124, thereby achieving the purpose of decomposing stress and improving the overall mode.

[0062] The third hole 7122 is surrounded by the first longitudinal rib 72, the second longitudinal rib 73, the first transverse rib 75, the third longitudinal rib 74, and the second transverse rib 76, so the stress around the third hole 7122 can be effectively decomposed, the ratio of the stress around the third hole 7122 can be reduced, and the design requirements of the stress at this location can be met. In addition, the fourth hole 7123 is surrounded by the first longitudinal rib 72, the second transverse rib 76, and the third longitudinal rib 74, and the fifth hole 7124 is located near the lower ends of the first longitudinal rib 72 and the third longitudinal rib 74, so that the stress around the fourth hole 7123 and the fifth hole 7124 can be reduced to a certain extent.

[0063] Exemplarily, in this embodiment, the distribution of the third hole 7122, the fourth hole 7123 and the fifth hole 7124 tends to be in the Z direction; the distance C between the third hole 7122 and the fourth hole 7123 in the Z direction is greater than 60 mm, and the distance A in the X direction is greater than 30 mm; the distance D between the third hole 7122 and the fifth hole 7124 in the Z direction is greater than 150 mm, and the distance B in the X direction is greater than 25 mm; according to CAE analysis, the stress around the third hole 7122 is greater than 800 MPa, the stress around the fourth hole 7123 is greater than 400 MPa, and the stress around the fifth hole 7124 is greater than 150 MPa, and the stress around the third hole 7122 is the largest.

[0064] After arranging the holes and ribs in the above-mentioned positional relationship, CAE analysis shows that the stress around the third hole 7122 is less than 450MPa, the stress around the fourth hole 7123 is less than 300Mpa, and the stress around the fifth hole 7124 is less than 200Mpa, which greatly reduces the stress ratio around the three holes. When welding and manufacturing the bracket, DL510 or above beam steel can be selected, and its allowable stress is greater than 510Mpa, so that the bracket product can meet the design requirements.

[0065] In some optional embodiments, see Figures 1 to 7 As shown, an embodiment of the present application provides a right bracket of a driving motor, and the first longitudinal rib 72 of the right bracket 7 of the driving motor includes a first upper plate 721, a first middle plate 722 and a first lower plate 723 which are welded in sequence, and the cross-sectional area of ​​the first upper plate 721 gradually decreases from top to bottom, and the first middle plate 722 extends obliquely toward the third longitudinal rib 74 and is welded to the second longitudinal rib 73 and the second transverse rib 76 respectively.

[0066] The function of the first longitudinal rib 72 of the embodiment of the present application is to direct the force borne by the first bolt 78-1 to the vicinity of the third hole 7122, the fourth hole 7123, and the fifth hole 7124. The first longitudinal rib 72 is composed of a first upper plate 721, a first middle plate 722, and a first lower plate 723, and is fixed by welding; the cross-sectional area of ​​the first upper plate 721 gradually decreases from top to bottom, which facilitates the concentration of force downward onto the first middle plate 722; the first middle plate 722 has a zigzag extension structure, which can better disperse and withstand external loads, thereby improving the strength and rigidity of the bracket.

[0067] Exemplarily, the first longitudinal rib 72 is welded to the left side of the mounting plate 71 and a certain distance is left from the side of the side plate 712 to facilitate setting the weld; the first upper plate 721 and the first middle plate 722 of the first longitudinal rib 72 are welded using double-sided welds to improve welding performance and reliability; the first lower plate 723 is subject to less stress and a single-sided weld can be used to increase the welding speed.

[0068] In some optional embodiments, see Figures 1 to 7 As shown, an embodiment of the present application provides a right bracket of a driving motor, and the second longitudinal rib 73 of the right bracket 7 of the driving motor includes a second upper plate 731 and a second lower plate 732 welded in sequence, the second upper plate 731 is welded to the first transverse rib 75 and the cross-sectional area gradually decreases from top to bottom, and the second lower plate 732 is inclined toward the first middle plate 722 and is welded to the first middle plate 722.

[0069] The function of the second longitudinal rib 73 of the embodiment of the present application is to guide part of the force borne by the first bolt 78-1 and the second bolt 78-2 to the vicinity of the third hole 7122; to prevent the third hole 7122 from bearing too much force, the second lower plate 732 is welded to the first longitudinal rib 72, and part of the force can be decomposed to the first longitudinal rib 72 to guide it to the vicinity of the fourth hole 7123 and the fifth hole 7124. Among them, the cross-sectional area of ​​the second upper plate 731 gradually decreases from top to bottom, which facilitates the concentrated force to be guided downward to the second lower plate 732.

[0070] Exemplarily, the second longitudinal rib 73 is welded in the middle of the side plate 712, the second upper plate 731 of the second longitudinal rib 73 is perpendicular to the top plate 711 and the side plate 712, the cross-sectional size of the second lower plate 732 is the same as the size of the lower end surface of the second upper plate 731, the angle formed by the second upper plate 731 and the second lower plate 732 is approximately 120 degrees, and double-sided welds are used for welding; the end of the second lower plate 732 away from the side plate 712 is flush with the first middle plate 722, which is convenient for subsequent welding and fixing of the connecting plate 77.

[0071] In some optional embodiments, see Figures 1 to 7 As shown, an embodiment of the present application provides a right bracket of a driving motor, and the third longitudinal rib 74 of the right bracket 7 of the driving motor includes a third upper plate 741, a third middle plate 742 and a third lower plate 743 which are welded in sequence, the third upper plate 741 is welded to the first transverse rib 75 and the cross-sectional area gradually decreases from top to bottom, and the third middle plate 742 is welded to the second transverse rib 76.

[0072] The function of the third longitudinal rib 74 of the embodiment of the present application is to direct the force borne by the second bolt 78-2 to the vicinity of the third hole 7122, the fourth hole 7123, and the fifth hole 7124. The third longitudinal rib 74 is composed of a third upper plate 741, a third middle plate 742, and a third lower plate 743, and is fixed by welding; the cross-sectional area of ​​the third upper plate 741 gradually decreases from top to bottom, which is convenient for concentrating the force downward on the first middle plate 722; the third middle plate 742 has a zigzag extension structure, which can better disperse and withstand external loads, thereby improving the strength and rigidity of the bracket.

[0073] Exemplarily, the third longitudinal rib 74 is welded to the right side of the mounting plate 71, and a certain distance is left from the side of the side plate 712 to facilitate setting the weld; the third upper plate 741 and the third middle plate 742 of the third longitudinal rib 74 are welded using double-sided welds to improve welding performance and reliability; the third lower plate 743 is subject to less stress, and a single-sided weld can be used to increase the welding speed.

[0074] In some optional embodiments, see Figures 1 to 7 As shown, an embodiment of the present application provides a right bracket of a driving motor, which also includes a connecting plate 77, and each side of the connecting plate 77 is welded to the second longitudinal rib 73, the first longitudinal rib 72, the second transverse rib 76 and the third longitudinal rib 74 respectively, and the end of the first transverse rib 75 away from the side plate 712 is welded to the connecting plate 77.

[0075] The edges 772, 773, 774, 775, 776 of the connecting plate 77 of the embodiment of the present application are welded to the second longitudinal rib 73, the first longitudinal rib 72, the second transverse rib 76 and the third longitudinal rib 74, respectively. At the same time, the end of the first transverse rib 75 away from the side plate 712 is welded to the connecting plate 77, so that the cross-section of the area corresponding to the connecting plate 77 forms a "mouth"-shaped beam structure. The "mouth"-shaped beam has good mechanical properties, can effectively improve the overall mode and reduce the stress in the area, thereby further reducing the stress around the third hole 7122 and achieving a lightweight design.

[0076] Exemplarily, in this embodiment, the first middle plate 722, the second lower plate 732, the third middle plate 742 and the end of the second transverse rib 76 away from the side plate 712 are located in the same plane, which is convenient for welding the connecting plate 77; the second upper plate 731, the third upper plate 741 and the end of the first transverse rib 75 away from the side plate 712 are located in the same plane, which is convenient for welding the connecting plate 77; the edges 775 and 776 of the connecting plate 77 are respectively kept at a certain distance from the third middle plate 742 and the third lower plate 743 to facilitate the setting of the weld.

[0077] It should be noted that the right bracket 7 of the drive motor in the embodiment of the present application is a welded part structure as a whole, and its outstanding advantage lies in the structural design of the first longitudinal rib 72, the second longitudinal rib 73, the third longitudinal rib 74, the first transverse rib 75 and the second transverse rib 76, which effectively guides the transmission of force; at the same time, the upper semi-boxed design, the middle boxed design and the lower semi-boxed design of the right bracket 7 of the drive motor improve the mode of the part and reduce the stress; in addition, the right bracket 7 of the drive motor adopts a sheet metal structure formed by sheet metal stamping and welding instead of a cast structure, which is suitable for complete vehicle products with small dimensions and reduces the cost of parts.

[0078] In some optional embodiments, see Figures 1 to 7 As shown, the embodiment of the present application provides a right bracket of a driving motor, the side plate 712 of the right bracket 7 of the driving motor has an outer profile 7125 matching the first longitudinal rib 72, and the connecting plate 77 is provided with a clearance hole 771 located between the first transverse rib 75 and the second transverse rib 76;

[0079] The side plate is provided with a first paint through hole 7121 located on the upper side of the first transverse rib 75 , the first transverse rib 75 is provided with a second paint through hole 751 , and the second transverse rib 76 is provided with a third paint through hole 761 .

[0080] The side plate 712 of the embodiment of the present application has an outer contour 7125 that matches the first longitudinal rib 72, and the outer contour 7125 is used to match the shape of the connecting end of the motor assembly 1; the connecting plate 77 is provided with a clearance hole 771 located between the first transverse rib 75 and the second transverse rib 76, and the clearance hole 771 is coaxial with the third hole 7122 and has a larger aperture than the third hole 7122, so as to meet the placement space of the sleeve when installing the connecting bolts between the right bracket 7 of the drive motor and the motor assembly 1.

[0081] In addition, the first paint through hole 7121 opened on the side panel, the second paint through hole 751 opened on the first transverse rib 75, and the third paint through hole 761 opened on the second transverse rib 76 all serve to remove the electrophoretic paint during the electrophoresis process of the right bracket 7 of the vehicle driving motor.

[0082] See also Figure 8 As shown, the second aspect of the embodiment of the present application provides a suspension system, including:

[0083] A vehicle frame, the vehicle frame comprising a left longitudinal beam assembly 10 and a right longitudinal beam assembly 11 which are spaced apart from each other, and a sub-frame assembly 12 which is fixedly connected between the left longitudinal beam assembly 10 and the right longitudinal beam assembly 11;

[0084] The motor assembly 1 is located at the front side of the subframe assembly 12 and between the left longitudinal beam assembly 10 and the right longitudinal beam assembly 11;

[0085] A suspension unit, the suspension unit includes a left bracket 2 connected to a left longitudinal beam assembly 10, and a right bracket 5 connected to a right longitudinal beam assembly 11;

[0086] A left elastic bracket assembly 3 connected to the left bracket 2, and a right elastic bracket assembly 6 connected to the right bracket 5;

[0087] A left drive motor bracket 4 connected between a left drive motor elastic bracket assembly 3 and a motor assembly 1, and a right drive motor bracket 7 of any of the above embodiments connected between a right drive motor elastic bracket assembly 6 and the motor assembly 1;

[0088] A rear suspension bracket 9 connected to the subframe assembly 12 , and a rear suspension assembly 8 connected between the rear suspension bracket 9 and the motor assembly 1 .

[0089] The suspension system of the embodiment of the present application is composed of a motor assembly 1, a left bracket 2, a left elastic bracket assembly 3, a left bracket of a driving motor 4, a right bracket 5, a right elastic bracket assembly 6, a right bracket of a driving motor 7, a rear suspension assembly 8, a rear suspension bracket 9, a left longitudinal beam assembly 10, a right longitudinal beam assembly 11, and a subframe assembly 12.

[0090] The left bracket 2 is installed on the left longitudinal beam assembly 10 by bolts; the left elastic bracket assembly 3 is installed on the left bracket 2 by bolts and nuts; the left drive motor bracket 4 is installed on the motor assembly 1 by bolts and connected to the left elastic bracket assembly 3.

[0091] The right bracket 5 is installed on the right longitudinal beam assembly 11 by bolts; the right elastic bracket assembly 6 is installed on the right bracket 5 by bolts and nuts; the right bracket 7 of the driving motor is installed on the motor assembly 1 by bolts and connected to the right elastic bracket assembly 6; the rear suspension assembly 8 is installed on the motor assembly 1 by bolts and connected to the rear suspension bracket 9.

[0092] The left drive motor bracket 4, the right drive motor bracket 7, and the rear suspension assembly 8 jointly support the motor assembly 1; the left bracket 2, the right bracket 5, and the rear suspension bracket 9 jointly connect the motor assembly 1 to the vehicle body and the subframe; the left elastic bracket assembly 3, the right elastic bracket assembly 6, and the rear suspension assembly 8 play the role of connection, shock absorption, and vibration isolation.

[0093] The above-mentioned rear suspension assembly 8 not only supports the motor assembly 1, but also plays the role of connection, shock absorption and vibration isolation. The rear suspension assembly 8 connects the motor assembly 1 and the rear suspension bracket 9, and plays the role of attenuating and isolating the vibration and force transmitted from the motor assembly 1 to the rear suspension bracket 9.

[0094] Among them, the suspension system adopts the right bracket 7 of the driving motor of any of the above-mentioned embodiments. The right bracket 7 of the driving motor has the advantages of simple structure, ingenious design, stable structure, good reliability, strong bearing capacity, light weight, low cost, and easy assembly. It can effectively reduce stress and meet the design requirements, while achieving lightweight design and reducing parts costs.

[0095] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0096] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0097] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A right bracket of a driving motor, characterized in that: include: A mounting plate (71), comprising a top plate (711) and a side plate (712), wherein the top plate (711) and the side plate (712) are connected to each other to form an "L"-shaped structure, and the side plate (712) is provided with at least two mounting holes for connecting the motor assembly (1); The reinforcing ribs include a longitudinal rib group vertically fixedly connected to the top plate (711) and the side plate (712), and a transverse rib group vertically fixedly connected to the side plate (712), wherein the transverse rib group and the longitudinal rib group are fixedly connected to each other to form a grid structure, and at least one of the mounting holes is located in a mesh of the grid structure.

2. The right bracket of the driving motor according to claim 1, characterized in that: The longitudinal rib group comprises a first longitudinal rib (72), a second longitudinal rib (73) and a third longitudinal rib (74), wherein the second longitudinal rib (73) is located between the first longitudinal rib (72) and the third longitudinal rib (74), and the second longitudinal rib (73) is located away from one end of the side plate (712) and is fixedly connected to the first longitudinal rib (72); The transverse reinforcement group comprises a first transverse reinforcement (75) and a second transverse reinforcement (76), wherein two ends of the first transverse reinforcement (75) are respectively fixedly connected to the second longitudinal reinforcement (73) and the third longitudinal reinforcement (74), and two ends of the second transverse reinforcement (76) are respectively fixedly connected to the first longitudinal reinforcement (72) and the third longitudinal reinforcement (74).

3. The right bracket of the driving motor according to claim 2, characterized in that: The top plate (711) is provided with a first hole (7111) located between the first longitudinal rib (72) and the second longitudinal rib (73), and a second hole (7113) located between the second longitudinal rib (73) and the third longitudinal rib (74); the first hole (7111) is installed with a first bolt (78-1), and the second hole (7113) is installed with a second bolt (78-2).

4. The right bracket of the driving motor according to claim 2, characterized in that: The mounting holes include a third hole (7122), a fourth hole (7123) and a fifth hole (7124) distributed from top to bottom, the third hole (7122) is located between the first transverse rib (75) and the second transverse rib (76), and the fourth hole (7123) is located at the lower side of the second transverse rib (76) and between the first longitudinal rib (72) and the third longitudinal rib (74).

5. The right bracket of the driving motor according to claim 2, characterized in that: The first longitudinal rib (72) comprises a first upper plate (721), a first middle plate (722) and a first lower plate (723) which are welded in sequence, the cross-sectional area of ​​the first upper plate (721) gradually decreases from top to bottom, and the first middle plate (722) extends obliquely toward the third longitudinal rib (74) and is welded to the second longitudinal rib (73) and the second transverse rib (76) respectively.

6. The right bracket of the driving motor according to claim 5, characterized in that: The second longitudinal rib (73) comprises a second upper plate (731) and a second lower plate (732) which are welded to each other in sequence, the second upper plate (731) being welded to the first transverse rib (75) and having a cross-sectional area which gradually decreases from top to bottom, and the second lower plate (732) being inclined toward the first middle plate (722) and being welded to the first middle plate (722).

7. The right bracket of the driving motor according to claim 2, characterized in that: The third longitudinal rib (74) comprises a third upper plate (741), a third middle plate (742) and a third lower plate (743) which are welded in sequence; the third upper plate (741) and the first transverse rib (75) are welded together and the cross-sectional area gradually decreases from top to bottom; the third middle plate (742) and the second transverse rib (76) are welded together.

8. The right bracket of the driving motor according to claim 2, characterized in that: It also includes a connecting plate (77), each side of which is welded to the second longitudinal rib (73), the first longitudinal rib (72), the second transverse rib (76) and the third longitudinal rib (74), and the end of the first transverse rib (75) away from the side plate (712) is welded to the connecting plate (77).

9. The right support of the driving motor according to claim 8, characterized in that: The side plate (712) has an outer contour (7125) matching the first longitudinal rib (72), and the connecting plate (77) is provided with a clearance hole (771) located between the first transverse rib (75) and the second transverse rib (76); The side plate is provided with a first paint through hole (7121) located on the upper side of the first transverse rib (75), the first transverse rib (75) is provided with a second paint through hole (751), and the second transverse rib (76) is provided with a third paint through hole (761).

10. A suspension system, characterized in that: include: A vehicle frame, the vehicle frame comprising a left longitudinal beam assembly (10) and a right longitudinal beam assembly (11) which are spaced apart from each other, and a sub-frame assembly (12) which is fixedly connected between the left longitudinal beam assembly (10) and the right longitudinal beam assembly (11); A motor assembly (1), the motor assembly (1) being located at the front side of the subframe assembly (12) and between the left longitudinal beam assembly (10) and the right longitudinal beam assembly (11); A suspension unit, the suspension unit comprising a left bracket (2) connected to the left longitudinal beam assembly (10), and a right bracket (5) connected to the right longitudinal beam assembly (11); A left elastic bracket assembly (3) connected to the left bracket (2), and a right elastic bracket assembly (6) connected to the right bracket (5); A left drive motor bracket (4) connected between the left drive motor elastic bracket assembly (3) and the motor assembly (1); a right drive motor bracket (7) according to any one of claims 1 to 9 connected between the right drive motor elastic bracket assembly (6) and the motor assembly (1); A rear suspension bracket (9) connected to the auxiliary frame assembly (12), and a rear suspension assembly (8) connected between the rear suspension bracket (9) and the motor assembly (1).

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