A drive motor right bracket and suspension system

Abstract

The present application relates to a right bracket and suspension system for a driving motor, belonging to the technical field of suspension systems for electric vehicles, and includes a mounting plate, which includes a top plate and side plates, the top plate and side plates being interconnected to form an "L"-shaped structure, and the side plates being provided with at least two mounting holes; reinforcing ribs, which include a longitudinal rib group vertically fixedly connected to both 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 being fixedly connected to each other to form a grid structure, and at least one of the mounting holes being located within the mesh of the grid structure. Therefore, the longitudinal rib group can direct the force borne by the top plate to the mounting holes below the side plates, while the longitudinal rib group and the transverse rib group being welded to each other to form a grid structure, which can have a good reinforcing 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 stress around the mounting holes, thereby meeting stress design requirements.

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, modality and reliability.

[0003] In engineering applications, it is common to encounter the situation where the same drive motor assembly is installed in different vehicle models, such as light trucks, vans, and sedans. Different vehicle models have very different requirements for the layout of the drive motor, so it is difficult to take into account the mounting holes connecting the drive motor and the mounting bracket for all of the above 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 mounting holes are relatively close in the X direction, the peripheral stress of individual mounting holes in the suspension bracket design will be greater than the allowable stress of the material, thus failing to meet the design requirements. Summary of the Invention

[0005] In response to the deficiencies or one of the deficiencies raised in 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 the 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 side plates, the top plate and side plates being connected to each other to form an L-shaped structure, the side plates being provided with at least two mounting holes for connecting to 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 a first aspect, in some embodiments, the longitudinal reinforcement group includes a first longitudinal reinforcement, a second longitudinal reinforcement, and a third longitudinal reinforcement, wherein the second longitudinal reinforcement is located between the first longitudinal reinforcement and the third longitudinal reinforcement, and the second longitudinal reinforcement is away from one end of the side panel and fixedly connected to the first longitudinal reinforcement;

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

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

[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 on 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 that are welded together 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 together with the second longitudinal reinforcement and the second transverse reinforcement, respectively.

[0014] In the first aspect, in some embodiments, the second longitudinal rib includes a second upper plate and a second lower plate welded 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 welded together in sequence, the third upper plate is welded together with the first transverse reinforcement and the cross-sectional area gradually decreases from top to bottom, and the third middle plate is welded together with the second transverse reinforcement.

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

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

[0021] a motor assembly, the motor assembly being located on 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 elastic bracket assembly of the drive motor and the motor assembly, and a right drive motor bracket as described above in any one of the preceding items connected between the right elastic bracket assembly of the drive motor 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. Since 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, and the side plate is provided with at least two mounting holes for connecting the motor assembly; 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 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 better strengthen the top plate and the side plates, effectively guide the transmission 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 following briefly introduces the drawings required for use in the description of the embodiments. 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 any creative work.

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

[0031] Figure 2 This is a schematic diagram of the connection between the longitudinal reinforcement group and the transverse reinforcement group according to an embodiment of the present application;

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

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

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

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

[0036] Figure 7 This is a schematic diagram of the connection between the connecting plate and the first transverse rib according to an embodiment of the present application;

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

[0038] In the accompanying drawings, the components represented by the reference numerals are 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 reinforcement; 73. Second longitudinal reinforcement; 74. Third longitudinal reinforcement; 75. First transverse reinforcement; 751. Second paint hole; 76. Second transverse reinforcement; 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] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0043] In response to the deficiencies or one of the deficiencies raised in 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 the 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. The side plate 712 is provided with at least two mounting holes for connecting to 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, which includes a top plate 711 and a side plate 712 connected in an integral manner, with the angle between the two being a right angle. The top plate 711 is connected to the right elastic bracket assembly 6 via fasteners, and the side plate 712 is connected to the motor assembly 1 via mounting holes. A longitudinal rib group and a transverse rib group are vertically welded to the side plate 712. The top 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 holes 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 mesh 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] Illustratively, 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. 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] CAE analysis shows that 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, with the stress around the third hole 7122 being the greatest. Therefore, to decompose the stress around the third hole 7122, the third hole 7122 is located in the middle area of ​​the side panel 712, within the grid formed by the longitudinal and transverse reinforcement groups.

[0052] The stress around the third hole 7122 can be reduced to below 450 MPa. The reinforcement of the longitudinal and transverse reinforcement groups also significantly reduces the stress around the fourth and fifth holes 7123 and 7124, effectively reducing the stress ratio around the three holes. DL510 or higher beam steel can be used for bracket welding, with an allowable stress greater than 510 MPa, thus meeting 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, second, and third longitudinal ribs 72, 73, and 74 of the present embodiment are designed to direct the forces borne by the top plate 711 to the periphery of the mounting holes in the side plates 712, thereby improving the overall modal response of the bracket and reducing stress requirements. The second longitudinal rib 73 is located at one end, away from the side plates 712, and is fixedly connected to the first longitudinal rib 72. This allows the forces of the second longitudinal rib 73 to be directed to the first longitudinal rib 72, thereby improving the overall modal response.

[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. 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] A first hole 7111 and a second hole 7112 are provided on the top plate 711 of the embodiment of the present application. 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 the fixing of 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 stress design requirements.

[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] In the embodiment of the present application, the relative positions of the holes and the ribs are set so that the first longitudinal rib 72 can direct 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 direct 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 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, 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. This effectively reduces the stress around the third hole 7122, reducing the stress ratio around the third hole 7122 and meeting the design requirements for stress at that location. Furthermore, the fourth hole 7123 is surrounded by the first longitudinal rib 72, the second transverse rib 76, and the third longitudinal rib 74. The fifth hole 7124 is located near the lower ends of the first longitudinal rib 72 and the third longitudinal rib 74. This reduces the stress around both the fourth and fifth holes 7123 and 7124 to a certain extent.

[0063] For example, 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 showed that the stress around the third hole 7122 was less than 450 MPa, the stress around the fourth hole 7123 was less than 300 MPa, and the stress around the fifth hole 7124 was less than 200 MPa. This significantly reduced the stress ratio around the three holes. When welding and manufacturing the bracket, beam steel of DL510 or above can be selected, whose allowable stress is greater than 510 MPa, 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 welded together 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 to 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] For example, 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 the setting of 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 subjected 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 reinforcement 73 in this embodiment of the application is to direct some of the force borne by the first and second bolts 78-1, 78-2 to the vicinity of the third hole 7122. To prevent excessive force from being borne by the third hole 7122, the second lower plate 732 is welded to the first longitudinal reinforcement 72, which can decouple some of the force from the first longitudinal reinforcement 72 and direct it to the vicinity of the fourth and fifth holes 7123, 7124. The cross-sectional area of ​​the second upper plate 731 gradually decreases from top to bottom, facilitating the concentrated downward force directed to the second lower plate 732.

[0070] Exemplarily, the second longitudinal rib 73 is welded in the middle of the side panel 712, the second upper panel 731 of the second longitudinal rib 73 is perpendicular to the top panel 711 and the side panel 712, the cross-sectional size of the second lower panel 732 is the same as the size of the lower end face of the second upper panel 731, the angle formed by the second upper panel 731 and the second lower panel 732 is approximately 120 degrees, and double-sided welds are used for welding; the end of the second lower panel 732 away from the side panel 712 is flush with the first middle panel 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 welded together in sequence, the first transverse rib 75 of the third upper plate 741 is welded together and the cross-sectional area gradually decreases from top to bottom, and the third middle plate 742 is welded together with 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 facilitates the concentration of force downward onto 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] For example, 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 the setting of 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 subjected 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, and the right bracket 7 of the driving motor 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, and 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] For example, 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, which is convenient for setting the weld.

[0077] It should be noted that the right bracket 7 of the driving 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 half-boxed design, the middle boxed design and the lower half-boxed design of the right bracket 7 of the driving motor improve the modal of the part and reduce the stress; in addition, the right bracket 7 of the driving motor adopts a sheet metal structure formed by sheet metal stamping and welding instead of a cast structure, which is suitable for small-dimensional complete vehicle products 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, wherein 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 panel 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, which can 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 electrophoretic paint during the electrophoresis process of the right bracket 7 of the vehicle drive motor.

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

[0083] The vehicle frame includes a left longitudinal beam assembly 10 and a right longitudinal beam assembly 11 that are spaced apart from each other, and a subframe assembly 12 that is fixedly connected between the left longitudinal beam assembly 10 and the right longitudinal beam assembly 11;

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

[0085] The suspension unit includes 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;

[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 the left drive motor elastic bracket assembly 3 and the motor assembly 1, and a right drive motor bracket 7 of any of the above embodiments connected between the 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 consists of a motor assembly 1, a left bracket 2, a left elastic bracket assembly 3, a drive motor left bracket 4, a right bracket 5, a right elastic bracket assembly 6, a drive motor right bracket 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 mounted on the left longitudinal beam assembly 10 by bolts; the left elastic bracket assembly 3 is mounted on the left bracket 2 by bolts and nuts; the left drive motor bracket 4 is mounted on the motor assembly 1 by bolts and is 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 drive motor is installed on the motor assembly 1 by bolts and is connected to the right elastic bracket assembly 6; the rear suspension assembly 8 is installed on the motor assembly 1 by bolts and is 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 rear suspension assembly 8 not only supports the motor assembly 1 but also provides connection, shock absorption, and vibration isolation. It connects the motor assembly 1 to the rear suspension bracket 9, attenuating and isolating vibrations and forces 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, lightweight, low cost, and easy assembly. It can effectively reduce stress and meet the design requirements. At the same time, it can achieve lightweight design and reduce parts costs.

[0095] In the description of this application, it should be noted that the terms "upper" and "lower" and the like 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 this application and simplifying the description, and do not indicate or imply 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 this 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 an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this 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 used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any 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 comprising 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, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0097] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

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 to the motor assembly (1); Reinforcing ribs, comprising a longitudinal rib group vertically fixedly connected to both the top plate (711) and the side plates (712), and a transverse rib group vertically fixedly connected to the side plates (712), the transverse rib group and the longitudinal rib group being fixedly connected to each other to form a grid-like structure, at least one of the mounting holes being located within a mesh of the grid-like structure; The longitudinal reinforcement group includes a first longitudinal reinforcement (72), a second longitudinal reinforcement (73), and a third longitudinal reinforcement (74), wherein the second longitudinal reinforcement (73) is located between the first longitudinal reinforcement (72) and the third longitudinal reinforcement (74), and the second longitudinal reinforcement (73) is away from one end of the side plate (712) and is fixedly connected to the first longitudinal reinforcement (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).

2. The right bracket of the driving motor according to claim 1, 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).

3. The right bracket of the driving motor according to claim 1, 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) being located between the first transverse rib (75) and the second transverse rib (76), and the fourth hole (7123) being located below the second transverse rib (76) and between the first longitudinal rib (72) and the third longitudinal rib (74).

4. The right bracket of the driving motor according to claim 1, 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 together in sequence, wherein 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 together with the second longitudinal rib (73) and the second transverse rib (76), respectively.

5. The right bracket of the driving motor according to claim 4, 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) is welded to the first transverse rib (75) and its cross-sectional area gradually decreases from top to bottom. The second lower plate (732) is inclined toward the first middle plate (722) and is welded to the first middle plate (722).

6. The right bracket of the driving motor according to claim 1, 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 together 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.

7. The right bracket of the driving motor according to claim 1, 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 one end of the first transverse rib (75) away from the side plate (712) is welded to the connecting plate (77).

8. The right bracket of the driving motor according to claim 7, 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).

9. 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) spaced apart from each other, and a sub-frame assembly (12) 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 on 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), and a right drive motor bracket (7) according to any one of claims 1 to 8 connected between the right drive motor elastic bracket assembly (6) and the motor assembly (1); 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).

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