Lower control arm structure, integrated angle module and automobile

Abstract

The utility model provides a lower control arm structure, an integrated angle module and an automobile, and belongs to the field of automobile design and manufacturing. The two ends, in the Y direction, of the lower control arm structure are used for being connected with a vehicle body and a bogie assembly respectively. An avoiding space is formed between the two ends of the lower control arm structure in the Y direction; the lower control arm structure is provided with a mounting part, and the mounting part is located in the avoiding space and faces the bogie assembly in the Y direction so as to be used for mounting a steering shock absorber, so that at least part of the movement envelope of the steering shock absorber is limited in the avoiding space. According to the lower control arm structure, the integrated angle module and the automobile, the upper stress and the lower stress of the bogie assembly can be more balanced, and after the lower control arm structure is additionally provided with the mounting part for mounting the steering damper, the lower control arm structure can be lifted to the height of the steering damper, so that the lower control arm structure has a higher ground clearance.

Description

Technical Field

[0001] The utility model relates to the field of automobile design and manufacturing, in particular to a lower control arm structure, an integrated corner module and an automobile. Background Art

[0002] The integrated corner module is an assembly that integrates drive, braking, suspension and steering modules. The steering drive of the left and right wheels is achieved through steering motors in independent integrated corner modules, so that each wheel can rotate independently, thereby reducing a large number of mechanical transmission components and optimizing the vehicle layout space.

[0003] Traditional integrated corner modules usually include components such as a bogie assembly, a lower control arm structure, and a steering motor. In vehicles using traditional integrated corner modules, the left and right wheels are not rigidly connected using traditional racks or steering tie rods. The gear meshing clearance of the reduction mechanism of the steering motor easily causes the integrated corner module to shimmy when the vehicle is driving. For this reason, in the prior art, a steering damper is added to the integrated corner module. The steering damper is connected to the bogie assembly and the vehicle body and is located in the top space of the lower control arm structure to alleviate the shimmy phenomenon by telescopic swing when the bogie assembly rotates. However, in the prior art, in order to avoid the motion envelope of the steering damper and allow the steering damper to move unobstructed in the top space of the lower control arm structure, the lower control arm structure needs to be arranged at a lower position along the Z direction, resulting in a lower ground clearance of the lower control arm structure.

[0004] In view of the above, the present utility model is proposed. Utility Model Content

[0005] The utility model provides a lower control arm structure, an integrated corner module and a car, aiming to solve the problem of low ground clearance of the lower control arm structure caused by the addition of a steering damper in the prior art.

[0006] The utility model firstly provides a lower control arm structure, wherein two ends of the lower control arm structure along the Y direction are respectively used to connect a vehicle body and a bogie assembly; an avoidance space is formed between the two ends of the lower control arm structure along the Y direction; the lower control arm structure is provided with a mounting portion, which is located in the avoidance space and faces the bogie assembly along the Y direction, so as to be used for mounting a steering damper, so that a motion envelope of the steering damper is at least partially restricted in the avoidance space.

[0007] In some embodiments, the lower control arm structure includes a main body, a first connecting part, a second connecting part, a third connecting part and a mounting part; the first connecting part and the second connecting part are respectively arranged at both ends of the main body along the X direction for connecting the vehicle body; the second connecting part and the third connecting part are respectively arranged at both ends of the main body along the Y direction, and the third connecting part is connected to the bogie assembly; the main body and the first connecting part and the third connecting part together enclose an avoidance space, and the mounting part is located in the avoidance space and connected to the main body.

[0008] In some embodiments, the mounting portion includes a first extension portion and a second extension portion, the first extension portion and the second extension portion are spaced apart in the Z direction and are respectively connected to the main body portion, and the first extension portion, the main body portion and the second extension portion together form a receiving cavity; the receiving cavity is used to receive one end of the steering damper, so that the steering damper is connected to the first extension portion and the second extension portion in the Z direction.

[0009] In some embodiments, the receiving cavity is a "V"-shaped cavity.

[0010] In some embodiments, the main body includes a main section and an extension section, the extension section is formed at the edge of the main section and protrudes up and down from the main section in the Z direction, and the extension section extends from the first connecting portion to the third connecting portion; the mounting portion is arranged on the extension section.

[0011] In some embodiments, the main body is an L-shaped structure, and the first connection portion, the second connection portion, and the third connection portion are respectively arranged at three corners of the main body; and / or the internal cross-section of the main body is T-shaped.

[0012] In some embodiments, the main body portion further includes a reinforcing rib, which is disposed on a side of the extension section away from the mounting portion and connected to the extension section and the main body section, and the reinforcing rib is disposed adjacent to the mounting portion.

[0013] The utility model also provides an integrated corner module, including a lower control arm structure, a steering damper and a bogie assembly as described above; the lower control arm structure is arranged on one side of the bogie assembly along the Z direction and is connected to the bogie assembly in the Z direction; the steering damper is arranged in the avoidance space, and one end of the steering damper is connected to the mounting portion, and the other end is connected to the bogie assembly in the Z direction, and can move in the avoidance space.

[0014] In some embodiments, the steering damper is opposite to the lower control arm structure along the Y direction in the avoidance space, and is arranged in parallel with at least a portion of the lower control arm structure along the X direction.

[0015] In some embodiments, the bogie assembly includes a bogie and a steering motor, and the steering motor is used to be set on the vehicle body; the bogie includes a main body, a first mating part and a second mating part, the main body is used to install the steering motor, the first mating part and the second mating part both protrude from the main body along the Z direction, the first mating part is connected to the lower control arm structure, and the second mating part is connected to the steering damper.

[0016] The utility model also provides an automobile, comprising a vehicle body, a subframe and the above-mentioned integrated corner module, wherein the bogie assembly is connected to the vehicle body, and the lower control arm structure is connected to the vehicle body or the subframe.

[0017] Compared with the prior art, the lower control arm structure, integrated corner module and automobile provided by the utility model have at least the following beneficial effects:

[0018] By optimizing the design of the lower control arm structure, the two ends of the lower control arm structure along the Y direction are respectively used to connect the vehicle body and the bogie assembly, so that the lower control arm structure can disperse the load borne by the bogie assembly by connecting the vehicle body or the subframe, so as to avoid excessive force on the mounting point at the top of the bogie assembly, thereby making the force on the bogie assembly more uniform, so as to ensure the strength of the bogie assembly; an avoidance space is formed between the two ends of the lower control arm structure along the Y direction, and a mounting portion facing the bogie assembly along the Y direction is arranged in the avoidance space, and the mounting portion is used to connect the steering damper, so that the steering damper can be respectively connected to the bogie assembly and the lower control arm structure in the avoidance space, so that the movement envelope of the steering damper is at least partially limited in the avoidance space, thereby avoiding the movement of the steering damper from affecting the top space of the upper control arm structure, so that the lower control arm structure does not need to be arranged at a lower position along the Z direction, and thus the lower control arm structure can obtain more ground clearance.

[0019] Other features and advantages of the lower control arm structure, the integrated corner module and the automobile provided by the utility model will be further described in the subsequent specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific implementation or the prior art description. Obviously, the drawings described below are some implementations of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 A schematic diagram of the overall structure of the lower control arm structure provided in an embodiment of the present application;

[0022] Figure 2 A schematic diagram of the overall structure of the lower control arm structure provided in an embodiment of the present application;

[0023] Figure 3 A bottom view of the overall structure of the lower control arm structure provided in an embodiment of the present application;

[0024] Figure 4 A top view of a lower control arm structure provided in an embodiment of the present application;

[0025] Figure 5 AA cross-sectional schematic diagram of the lower control arm structure provided in an embodiment of the present application;

[0026] Figure 6 A BB cross-sectional schematic diagram of a lower control arm structure provided in an embodiment of the present application;

[0027] Figure 7 A CC cross-sectional schematic diagram of a lower control arm structure provided in an embodiment of the present application;

[0028] Figure 8 A DD cross-sectional schematic diagram of a lower control arm structure provided in an embodiment of the present application;

[0029] Fig. 9 EE cross-sectional schematic diagram of the lower control arm structure provided in an embodiment of the present application;

[0030] Fig.10 A bottom view of the overall structure of the integrated corner module provided in an embodiment of the present application;

[0031] Fig.11 An exploded view of an integrated corner module provided in an embodiment of the present application;

[0032] Fig.12 A schematic diagram of the structure of the integrated corner module provided in the embodiment of the present application when it is placed in front;

[0033] Fig.13 A schematic diagram of a module of a car provided in an embodiment of the present application.

[0034] The reference numerals are as follows:

[0035] 100, lower control arm structure; 101, avoidance space; 110, main body; 111, main section; 112, extension section; 113, reinforcing rib; 120, first connecting portion; 130, second connecting portion; 140, third connecting portion; 141, tapered hole; 150, mounting portion; 151, first extension portion; 152, second extension portion; 153, receiving cavity;

[0036] 10. Integrated corner module;

[0037] 200. Steering damper;

[0038] 300, bogie assembly; 310, bogie; 311, body; 312, first mating portion; 313, second mating portion; 320, steering motor;

[0039] 1000, automobile; 20, subframe; 30, body. DETAILED DESCRIPTION

[0040] In the description of the present application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear to indicate the orientation or position relationship, unless otherwise specified, they are understood to be based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present 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 limiting the present application.

[0041] In addition, if there is a feature defined as "first" or "second", it is only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Features defined as "first" or "second" may explicitly or implicitly include at least one of the defined features. If there is a description of "plurality", the general meaning is to include at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0042] In this application, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed" and so on should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated 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, it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0043] In the description of this specification, if the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" appear, it means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0044] It should be noted that the coordinate descriptions such as "X direction, Y direction, Z direction" mentioned in the description of the embodiments of the present invention are interpreted with reference to the coordinate system of the entire vehicle, that is, the straight line where the front direction of the vehicle is located is the X direction, the axial direction of the front wheels is the Y direction, and the direction perpendicular to the ground is the Z direction.

[0045] Based on the above, the general concept of the embodiment of the utility model is to provide a lower control arm structure 100. Considering that the lower control arm structure 100 in the prior art needs to avoid the steering damper 200 on the top, which leads to a lower ground clearance of the lower control arm structure 100, the two ends of the lower control arm structure 100 along the Y direction are respectively used to connect the vehicle body 30 and the bogie assembly 300, so as to disperse the load borne by the bogie assembly 300 by connecting the vehicle body 30 or the subframe 20; and, an avoidance space 101 is formed between the two ends of the lower control arm structure 100 along the Y direction, and the avoidance space 101 is used for arranging the steering damper 200, and in order to install the steering damper 200, a mounting portion 150 is further provided in the avoidance space 101 of the lower control arm structure 100, and the mounting portion 150 faces the bogie assembly 300 along the Y direction, so that the steering damper 200 can be arranged in the avoidance space 101 along the Y direction, and the two ends of the steering damper 200 are respectively connected to the bogie assembly 300 and the mounting portion 150, so that the movement envelope of the steering damper 200 is at least partially restricted in the avoidance space 101, thereby avoiding the steering damper 200 from affecting the top space of the lower control arm structure 100 when moving, so that the lower control arm structure 100 does not need to be arranged at a lower position along the Z direction, thereby improving the ground clearance of the lower control arm structure 100.

[0046] Based on the above general concept, reference Figures 1 to 12As shown, an embodiment of the utility model provides a lower control arm structure 100, wherein the two ends of the lower control arm structure 100 along the Y direction are respectively used to connect the vehicle body 30 and the bogie assembly 300; an avoidance space 101 is formed between the two ends of the lower control arm structure 100 along the Y direction; the lower control arm structure 100 is provided with a mounting portion 150, which is located in the avoidance space 101 and faces the bogie assembly 300 along the Y direction, so as to be used for mounting a steering damper 200, so that the motion envelope of the steering damper 200 is at least partially confined within the avoidance space.

[0047] In the optional solutions of the embodiment of the utility model, please refer to Figures 1 to 9 The lower control arm structure 100 includes a main body 110, a first connection part 120, a second connection part 130, a third connection part 140 and a mounting part 150; the first connection part 120 and the second connection part 130 are respectively arranged at both ends of the main body 110 along the X direction, and are used to connect the vehicle body 30 or the subframe 20, the second connection part 130 and the third connection part 140 are respectively arranged at both ends of the main body 110 along the Y direction, and the third connection part 140 is connected to the bogie assembly 300; the main body 110, the first connection part 120 and the third connection part 140 together enclose an avoidance space 101, and the mounting part 150 is located in the avoidance space 101 and connected to the main body 110.

[0048] In this embodiment, the lower control arm structure 100 is an integrally formed plate-shaped structure, including a main body 110, a first connecting portion 120, a second connecting portion 130, a third connecting portion 140 and a mounting portion 150. The first connecting portion 120 and the second connecting portion 130 are respectively arranged at both ends of the main body 110 along the X direction. Through holes are provided in the first connecting portion 120 and the second connecting portion 130 along the Z direction for bolts to pass through and then connect to the vehicle body 30 or the subframe 20. The second connecting portion 130 and the third connecting portion 140 are respectively arranged at both ends of the main body 110 along the Y direction. The third connecting portion 140 is provided with a tapered hole 141 in the Z direction for the ball pin rod of the first matching portion 312 of the bogie assembly 300 to pass through. The main body 110, the first connection part 120 and the third connection part 140 together form an escape space 101. The mounting part 150 is located in the escape space 101, and is located between the first connection part 120 and the second connection part 130 in the X direction and between the first connection part 120 and the third connection part 140 in the Y direction. After the steering damper 200 is connected to the mounting part 150, it can be telescopically swung in the escape space 101 driven by the bogie 310 of the bogie assembly 300 to avoid affecting the Z-direction space of the lower control arm structure 100, so that the lower control arm structure 100 can be arranged at a higher position in the Z direction to increase the ground clearance of the lower control arm structure 100.

[0049] In the optional embodiment of the utility model, reference Figure 1 As shown, the mounting portion 150 includes a first extension portion 151 and a second extension portion 152, which are spaced apart in the Z direction and are respectively connected to the main body 110, and the first extension portion 151, the main body 110 and the second extension portion 152 together form a receiving cavity 153, and the receiving cavity 153 is used to receive one end of the steering damper 200, so that the steering damper 200 is connected to the first extension portion 151 and the second extension portion 152 in the Z direction.

[0050] It can be understood that in this embodiment, the mounting portion 150 includes a first extension portion 151 and a second extension portion 152, the first extension portion 151 and the second extension portion 152 are arranged relatively spaced apart along the Z direction, and are respectively connected to the main body 110, the first extension portion 151, the second extension portion 152 and the thickness surface of the main body 110 together form a receiving cavity 153, and the opening of the receiving cavity 153 faces the avoidance space 101; the first extension portion 151 and the second extension portion 152 are provided with coaxial through holes along the Z direction, turning A through hole in the Z direction may be provided at one end of the shock absorber 200 away from the bogie assembly 300. During assembly, the end of the steering shock absorber 200 away from the bogie assembly 300 is inserted into the accommodating cavity 153 along the Y direction, so that the bolt may pass through the second extension portion 152, the steering shock absorber 200 and the first extension portion 151 in sequence along the Z direction and then be fixed by a nut to fix the steering shock absorber 200 on the mounting portion 150, so that the motion envelope of the steering shock absorber 200 is located within the avoidance space 101.

[0051] In the preferred embodiment of the present invention, the thickness surface of the main body 110 at the mounting portion 150 is transitioned along an arc-like shape, and the receiving cavity 153 enclosed by the first extension portion 151 and the second extension portion 152 is a "V"-shaped cavity. The receiving cavity 153 faces the axis direction of the steering damper 200 to adapt to the motion envelope of the steering damper 200 when it is telescopic and swung. It is fan-shaped in a top view (reference Figure 1 and Figure 2 The steering damper 200 can move flexibly in the avoidance space 101.

[0052] In order to improve the strength of the lower control arm structure 100, as Figure 1 and Figure 3 As shown, in an optional scheme of an embodiment of the utility model, the main body 110 includes a main section 111 and an extension section 112, the extension section 112 is formed at the edge of the main section 111 and protrudes upward and downward from the main section 111 in the Z direction, and the extension section 112 extends from the first connecting portion 120 to the third connecting portion 140; the mounting portion 150 is arranged on the extension section 112.

[0053] It can be understood that the thickness of the main section 111 in the present embodiment in the Z direction is smaller than that of the extension section 112, the extension section 112 is formed at the edge of the main section 111 and protrudes up and down from the main section 111 in the Z direction, and the extension section 112 extends from the first connection portion 120 to the third connection portion 140, the thickness surface of the extension section 112 faces the avoidance space 101, and the mounting portion 150 is arranged on the extension section 112, so that the load transmitted by the bogie 310 and the steering damper 200 of the bogie assembly 300 can be dispersed through the extension section 112, and the design of the extension section 112 is conducive to improving the load resistance strength of the main section 110 in the Y direction and the X direction, thereby improving the overall strength of the lower control arm structure 100.

[0054] In a specific embodiment, Figure 4 As shown, the main body 110 is an L-shaped structure, and the first connecting portion 120, the second connecting portion 130, and the third connecting portion 140 are respectively arranged at three corners of the main body 110; Figure 6 As shown, the inner cross-section of the main body 110 is T-shaped.

[0055] In this embodiment, the main body 110 is a plane-like L-shaped structure, and the first connecting portion 120, the second connecting portion 130, and the third connecting portion 140 are respectively arranged at three corners of the main body 110 to adapt to the fan-shaped motion envelope of the steering damper 200; wherein, the main body 110 between the second connecting portion 130 and the third connecting portion 140 is arranged in parallel with the steering damper 200 along the X direction, and the outer end of the steering damper 200 (the end facing the bogie assembly 300) is connected to the bogie 310 of the bogie assembly 300 by a ball pin structure that can rotate at a large angle to meet the 90° steering requirement of the integrated corner module 10. Since the steering damper 200 has a smaller swing angle relative to the lower control arm structure 100, the inner end (the end facing the mounting portion 150) can be connected to the mounting portion 150 by a rubber bushing with better vibration isolation performance, thereby further alleviating the shimmy phenomenon when the vehicle is traveling at high speed.

[0056] refer to Figure 6 In the main body 110 of the present embodiment, since the extension section 112Z protrudes upward and downward from the main body section 111, the internal cross-section of the main body 110 is T-shaped, and the cross-sectional structure is very consistent with the stress condition of the lower control arm structure 100. While improving the overall structural strength of the lower control arm structure 100, the main body section 111 can have a thinner thickness and can be provided with weight-reducing holes, thereby improving the material utilization rate, making the overall structure of the lower control arm structure 100 more simplified and compact, and further achieving the purpose of reducing the weight of components.

[0057] To improve the strength of the mounting portion 150, refer to Figure 2 , Figure 3 and Figure 8In an optional solution of an embodiment of the utility model, the main body 110 also includes a reinforcing rib 113, which is arranged on the side of the extension section 112 away from the mounting portion 150 and is connected to the extension section 112 and the main body section 111, and the reinforcing rib 113 is arranged adjacent to the mounting portion 150.

[0058] Since the mounting portion 150 needs to be used for mounting the steering damper 200, the mounting portion 150 needs to bear more loads, so the main body 110 in this embodiment is designed with multiple reinforcing ribs 113, and the reinforcing ribs 113 are all arranged on the side of the extension section 112 away from the mounting portion 150 and connected to the extension section 112 and the main body section 111, and are adjacent to the mounting portion 150, thereby improving the strength of the mounting portion 150 accommodating cavity 153 on the lower control arm structure 100.

[0059] refer to Figure 10 to Figure 12 The embodiment of the utility model further provides an integrated corner module 10, comprising the above-mentioned lower control arm structure 100, steering damper 200 and bogie assembly 300; the lower control arm structure 100 is arranged at one side of the bogie assembly 300 along the Z direction and connected to the bogie assembly 300 in the Z direction, and the lower control arm structure 100 is used to be connected to the vehicle body 30 or the subframe 20 and form an avoidance space 101; the steering damper 200 is arranged in the avoidance space 101, and one end of the steering damper 200 is connected to the lower control arm structure 100, and the other end is connected to the bogie assembly 300 in the Z direction, and moves in the avoidance space 101.

[0060] It can be understood that in this embodiment, the bogie assembly 300 is connected to the lower control arm structure 100 in the Z direction, and the top can be connected to the vehicle body 30, and the end of the lower control arm structure 100 away from the bogie assembly 300 can be connected to the vehicle body 30 or the subframe 20, so that there are two load transfer paths between the bogie assembly 300 and the vehicle body 30, for example, one load transfer path can be through the top of the bogie assembly 300 connected to the vehicle body 30 for load transfer, and the other load transfer path can be the lower control arm structure 100 connected to the bogie assembly 300 to transfer load to the vehicle body 30 or the subframe 20. In this way, the phenomenon of large force on the connection point between the bogie assembly 300 and the vehicle body 30 caused by the large offset between the connection point where the top of the bogie 310 is higher than the wheel and the wheel center can be alleviated, and the lower control arm structure 100 can share the various directional forces transmitted from the wheel to the bogie assembly 300, so that the force on the connection point between the integrated corner module 10 and the vehicle body 30 is more uniform.

[0061] In addition, through the avoidance space 101 formed by the lower control arm structure 100, the steering damper 200 can be arranged in the avoidance space 101, and one end of the steering damper 200 is connected to the lower control arm structure 100, and the other end is connected to the bogie assembly 300 in the Z direction, so that when the bogie 310 turns and rotates, it can drive the steering damper 200 to move in the avoidance space 101, and eliminate or reduce the polarization phenomenon when the vehicle is driving through the damping force; moreover, the steering damper 200 is arranged in the avoidance space 101 formed by the lower control arm structure 100, and can maintain the same arrangement height as the lower control arm structure 100, so as to avoid occupying the top space of the lower control arm structure 100 during the movement, so that the lower control arm structure 100 can be arranged at a higher position along the Z direction, thereby improving the ground clearance of the lower control arm structure 100.

[0062] It should be understood that the steering damper 200 in the present embodiment is respectively connected to the bogie assembly 300 and the lower control arm structure 100, so that the steering damper 200 of the integrated corner module 10 can be in a fully constrained state before final assembly, so as to avoid collision with surrounding components during transportation and damage to parts; at the same time, the steering damper 200 is connected to the lower control arm structure 100, which reduces the number of installation points designed on the vehicle body 30 or the subframe 20 to ensure the connection of the steering damper 200, thereby reducing the manufacturing cost and improving the final assembly efficiency.

[0063] In an optional solution of the embodiment of the utility model, the steering damper 200 is opposite to the lower control arm structure 100 along the Y direction in the avoidance space 101, and is arranged in parallel with at least a part of the lower control arm structure 100 along the X direction.

[0064] In this embodiment, the steering damper 200 is opposite to the lower control arm structure 100 along the Y direction in the avoidance space 101, so as to ensure that the steering damper 200 assembly can have a similar or same Z-direction height as the lower control arm structure 100, avoid occupying the top space of the lower control arm structure 100, so that the lower control arm structure 100 can be arranged at a higher Z-direction height to have more ground clearance; and the steering damper 200 is arranged in parallel with at least part of the lower control arm structure 100 along the X direction, for example, the part of the lower control arm structure 100 connected to the bogie assembly 300 is arranged in parallel along the X direction, so that the motion envelope of the steering damper 200 during the telescopic swinging process is in the avoidance space 101, so as to avoid affecting the arrangement of the lower control arm structure 100, and at the same time improve the wheel side space utilization rate.

[0065] refer to Fig.10 and Fig.11In an optional solution of the embodiment of the utility model, the bogie assembly 300 includes a bogie 310 and a steering motor 320, and the steering motor 320 is used to be arranged on the vehicle body 30; the bogie 310 includes a main body 311, a first matching portion 312 and a second matching portion 313, the main body 311 is used to install the steering motor 320, the first matching portion 312 and the second matching portion 313 both protrude from the main body 311 along the Z direction, the first matching portion 312 is connected to the lower control arm structure 100, and the second matching portion 313 is connected to the steering damper 200.

[0066] The bogie assembly 300 in this embodiment is mainly composed of a bogie 310 and a steering motor 320. The bogie 310 includes a body portion 311, a first matching portion 312 and a second matching portion 313. The first matching portion 312 and the second matching portion 313 are located at the bottom of the body portion 311. A steering motor 320 is fixedly disposed on the top of the body portion 311. The steering motor 320 is connected to the vehicle body 30. The steering motor 320 is mainly used to drive the bogie 310 to rotate and drive the wheels to steer. The first matching portion 312 and the second matching portion 313 both protrude from the body portion 311 along the Z direction and are arranged at intervals. The first matching portion 312 is connected to the lower control arm structure 100, and the second matching portion 313 is connected to the steering damper 200 to drive the steering damper 200 to move in the avoidance space 101, thereby ensuring that the top space of the lower control arm structure 100 is not affected by the arrangement of the steering damper 200, so that the lower control arm structure 100 has a higher ground clearance.

[0067] In a specific embodiment, Fig.11 As shown, the first matching portion 312 is aligned with the steering motor 320 along the Z direction, and the first matching portion 312 is designed with a ball pin rod, and the ball pin rod is tapered with a gradually decreasing cross-sectional size downward along the Z direction, and the end of the lower control arm structure 100 close to the bogie 310 is provided with an adapted tapered hole 141 facing the Z direction (refer to Figure 5 ), the tapered hole 141 on the lower control arm structure 100 is connected by matching with the tapered surface of the ball pin rod, and the bottom of the ball pin rod is provided with a thread, so that it can pass through the tapered hole 141 and then be tightened on the lower control arm structure 100 by screwing with a nut. A threaded hole is designed on the second matching portion 313, and a ball pin is designed on the end of the steering damper 200 facing the bogie 310, and a through hole in the Z direction is opened on the ball pin, so that a bolt can pass through the outer ball pin through hole and be fixed in the threaded hole on the second matching portion 313, so as to fix the steering damper 200 to the bottom of the bogie 310. When the vehicle turns, the bogie 310 rotates along the steering motor 320, and the second matching portion 313 drives the steering damper 200 to expand and contract through the bolt, so that the steering damper 200 is driven by the bogie 310 to swing in the avoidance space 101, forming a fan-shaped motion envelope from a top-down perspective.

[0068] It should be noted that, in some embodiments, when the lower control arm structure 100 and the bogie 310 of the bogie assembly 300 are connected by a ball pin, the ball pin seat can be designed on the first matching portion 312 of the bogie 310, and can also be set on the third connection portion 140 of the lower control arm structure 100. There is only relative rotational movement between the bogie 310 and the lower control arm structure 100 and the vehicle body 30, and there is no relative bounce; the lower control arm structure 100 and the vehicle body 30 or the subframe 20 can be rigidly connected by bolts, or flexibly connected by bushings. In practice, an appropriate selection can be made according to the force requirements and the level of processing accuracy to absorb the influence of size and assembly tolerance on the steering movement, which is not limited in the embodiments of the present application.

[0069] It should be noted that the integrated corner module 10 in the embodiment of the present invention can be placed in front or in the rear of the automobile 1000 to respectively adapt to the front and rear wheels of the automobile 1000; when the integrated corner module 10 is placed in the front (such as Fig.12 When the integrated corner module 10 is rearwardly disposed (not shown), the “L”-shaped opening of the lower control arm structure 100 faces forward. When the integrated corner module 10 is rearwardly disposed (not shown), the “L”-shaped opening of the lower control arm structure 100 faces rearward.

[0070] refer to Fig.13 The embodiment of the utility model further provides an automobile 1000, including a vehicle body 30, a subframe 20 and the above-mentioned integrated corner module 10, wherein the bogie assembly 300 is connected to the vehicle body 30, and the lower control arm structure 100 is connected to the vehicle body 30 or the subframe 20.

[0071] It can be understood that the steering damper 200 in this embodiment is directly connected to the lower control arm structure 100 and is located in the avoidance space 101 on the side of the lower control arm structure 100. The lower control arm structure 100 can be directly connected to the vehicle body 30 or directly connected to the subframe 20. The bogie assembly 300 is connected to the vehicle body 30 through the steering motor 320. The ground reaction forces in all directions exerted on the wheels of the automobile 1000 arranged outward of the bogie assembly 300Y can be transmitted to the bogie 310 through the suspension rod system, and then transmitted to the vehicle body 30 through the two force transmission paths at the top and bottom of the bogie 310 (the top is transmitted to the vehicle body 30 through the steering motor 320, and the bottom is transmitted to the vehicle body 30 or the subframe 20 through the lower control arm), so that the upper and lower forces of the bogie 310 are more balanced, ensuring the strength of the bogie 310 while facilitating the thin-walled and lightweight structural design of the bogie 310.

[0072] In summary, a lower control arm structure 100, an integrated corner module 10 and an automobile 1000 provided by an embodiment of the utility model optimize the structure of the integrated corner module 10, so that the lower control arm structure 100 can disperse the load borne by the bogie assembly 300 by connecting the vehicle body 30 or the subframe 20, so as to avoid excessive force on the installation point at the top of the bogie assembly 300, thereby making the force on the bogie assembly 300 more uniform, so as to ensure the strength of the bogie assembly 300; at the same time, the avoidance space 101 formed by the lower control arm structure 100 can allow the steering damper 200 to be arranged in the avoidance space 101 and move, thereby avoiding affecting the top space of the lower control arm structure 100, so that the lower control arm structure 100 does not need to be arranged at a lower position along the Z direction, so that the lower control arm structure 100 can obtain more ground clearance.

[0073] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A lower control arm structure, characterized in that: The two ends of the lower control arm structure (100) along the Y direction are respectively used to connect the vehicle body (30) and the bogie assembly (300); An escape space (101) is formed between two ends of the lower control arm structure (100) along the Y direction; The lower control arm structure (100) is provided with a mounting portion (150), and the mounting portion (150) is located in the avoidance space (101) and faces the bogie assembly (300) along the Y direction, so as to be used for mounting a steering damper (200), so that the motion envelope of the steering damper (200) is at least partially restricted within the avoidance space (101).

2. The lower control arm structure according to claim 1, characterized in that: The lower control arm structure (100) comprises a main body portion (110), a first connecting portion (120), a second connecting portion (130), a third connecting portion (140) and the mounting portion (150); The first connection portion (120) and the second connection portion (130) are respectively arranged at two ends of the main body (110) along the X direction, and are used to connect the vehicle body (30); The second connection portion (130) and the third connection portion (140) are respectively arranged at two ends of the main body (110) along the Y direction, and the third connection portion (140) is used to connect the bogie assembly (300); The main body (110), the first connection part (120) and the third connection part (140) together enclose the avoidance space (101), and the mounting part (150) is located in the avoidance space (101) and connected to the main body (110).

3. The lower control arm structure according to claim 2, characterized in that: The mounting portion (150) comprises a first extension portion (151) and a second extension portion (152), the first extension portion (151) and the second extension portion (152) being arranged at intervals in the Z direction and respectively connected to the main body portion (110), and the first extension portion (151), the main body portion (110) and the second extension portion (152) together form a receiving cavity (153); The receiving cavity (153) is used to receive one end of the steering damper (200), so that the steering damper (200) is connected to the first extension portion (151) and the second extension portion (152) in the Z direction.

4. The lower control arm structure according to claim 2, characterized in that: The main body (110) comprises a main section (111) and an extension section (112), wherein the extension section (112) is formed at the edge of the main section (111) and protrudes upward and downward from the main section (111) in the Z direction, and the extension section (112) extends from the first connecting portion (120) to the third connecting portion (140); The mounting portion (150) is disposed on the extending section (112).

5. The lower control arm structure according to claim 3, characterized in that: The main body (110) is an L-shaped structure, and the first connecting portion (120), the second connecting portion (130), and the third connecting portion (140) are respectively arranged at three corners of the main body (110); and / or The internal cross-section of the main body (110) is T-shaped; and / or The receiving cavity (153) is a "V"-shaped cavity.

6. The lower control arm structure according to claim 4, characterized in that: The main body (110) further comprises a reinforcing rib (113), wherein the reinforcing rib (113) is arranged on a side of the extension section (112) away from the mounting section (150) and connected to the extension section (112) and the main body section (111), and the reinforcing rib (113) is arranged adjacent to the mounting section (150).

7. An integrated corner module, characterized in that: It comprises a lower control arm structure (100), a steering damper (200) and a bogie assembly (300) according to any one of claims 1 to 6; The lower control arm structure (100) is arranged on one side of the bogie assembly (300) along the Z direction and is connected to the bogie assembly (300) in the Z direction; The steering damper (200) is arranged in the avoidance space (101), and one end of the steering damper (200) is connected to the mounting portion (150), and the other end is connected to the bogie assembly (300) in the Z direction, and is capable of moving in the avoidance space (101).

8. The integrated corner module according to claim 7, characterized in that The steering damper (200) is opposite to the lower control arm structure (100) along the Y direction in the avoidance space (101), and is arranged in parallel with at least a portion of the lower control arm structure (100) along the X direction.

9. The integrated corner module according to claim 7, characterized in that: The bogie assembly (300) comprises a bogie (310) and a steering motor (320), wherein the steering motor (320) is used to connect to a vehicle body (30); The bogie (310) comprises a main body (311), a first matching portion (312) and a second matching portion (313); the main body (311) is used to install the steering motor (320); the first matching portion (312) and the second matching portion (313) both protrude from the main body (311) along the Z direction; the first matching portion (312) is connected to the lower control arm structure (100); and the second matching portion (313) is connected to the steering damper (200).

10. An automobile, characterized in that: The invention comprises a vehicle body (30), a subframe (20) and an integrated corner module (10) as claimed in any one of claims 7 to 9, wherein the bogie assembly (300) is connected to the vehicle body (30), and the lower control arm structure (100) is connected to the vehicle body (30) or the subframe (20).

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