CN221067702U - Suspension control arm and vehicle - Google Patents

Abstract

The utility model discloses a suspension control arm and a vehicle, which comprise an arm body, a first connecting part and a second connecting part, wherein the arm body is of a symmetrical structure and is provided with a symmetrical plane, the first connecting part is arranged at a first end of the arm body, the second connecting part is arranged at a second end of the arm body, and the first connecting part and the second connecting part are symmetrically arranged about the symmetrical plane. The suspension control arm provided by the utility model avoids the condition that the suspension in the prior art needs to distinguish the left piece from the right piece, reduces the development cost and improves the transportation and assembly efficiency.

Description

Suspension control arm and vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to a suspension control arm of a vehicle and the vehicle.

Background

The automobile control arm belongs to a guiding mechanism in an automobile chassis suspension, and has the functions of controlling the movement track of wheels, maintaining the four-wheel positioning parameters of the vehicle and transmitting load. However, in the related art, the control arm of the suspension needs to distinguish between left and right parts due to configuration, space and other reasons, so that the control arm needs to be opened again, the assembly efficiency is low, and the transportation and packaging costs are high.

Disclosure of utility model

The present disclosure aims to solve, at least to some extent, one of the technical problems in the related art.

Therefore, the embodiment of the disclosure provides a suspension control arm, which avoids the condition that a suspension in the prior art needs to distinguish left and right parts, reduces development cost and improves transportation and assembly efficiency.

The embodiment of the disclosure also provides a vehicle comprising the suspension control arm.

The suspension control arm of the embodiment of the present disclosure includes:

the arm body is of a symmetrical structure, and is provided with a symmetrical plane which is positioned in the middle of the arm body and enables two parts of the arm body to be in mirror symmetry;

The first connecting portion is arranged at the first end of the arm body, the second connecting portion is arranged at the second end of the arm body, and the first connecting portion and the second connecting portion are symmetrically arranged relative to the symmetry plane.

The suspension control arm of the embodiment of the disclosure avoids the condition that the suspension in the prior art needs to distinguish the left piece from the right piece, reduces development cost, and improves transportation and assembly efficiency.

In some embodiments, the arm is arcuate.

In some embodiments, a plane defined orthogonal to the symmetry plane and passing through the axis of the first connection portion and the axis of the second connection portion is a first plane, a plane defined orthogonal to both the symmetry plane and the first plane is a second plane, and projections of the arm body on both the first plane and the second plane are curved and extend.

In some embodiments, the outer surface of the arm body has a first projection line and a second projection line formed by projection on the second plane, the first projection line and the second projection line are oppositely arranged in a normal direction of the first plane, the first projection line is in a circular arc shape, the first projection line corresponds to a first circle and is formed through a part of the first circle, the second projection line is in a circular arc shape, the second projection line corresponds to a second circle and is formed through a part of the second circle, and the center of the first circle and the center of the second circle are located on the same side of the arm body.

In some embodiments, the first projection line is closer to a center of the first circle than the second projection line, and a radius of the first circle is greater than a radius of the second circle.

In some embodiments, the center of the first circle and the center of the second circle are both located on the symmetry plane.

In some embodiments, the outer surface of the arm body has a third projection line and a fourth projection line formed by projection on the first plane, the third projection line and the fourth projection line are oppositely arranged in a normal direction of the second plane, the third projection line is in a circular arc shape, the third projection line corresponds to a third circle and is formed through a part of the third circle, the fourth projection line is in a circular arc shape, the fourth projection line corresponds to a fourth circle and is formed through a part of the fourth circle, and the center of the third circle and the center of the fourth circle are located on the same side of the arm body.

In some embodiments, the third projection line is closer to a center of the third circle than the fourth projection line, a radius of the third circle being greater than a radius of the fourth circle.

In some embodiments, the center of the third circle and the center of the fourth circle are located on the symmetry plane.

In some embodiments, the angle α formed by the extending direction of the projection of the arm body on the symmetry plane and the axial direction of the first connecting portion or the axial direction of the second connecting portion is an acute angle.

In some embodiments, the width dimension of the projection of the arm body on the first plane increases and decreases from the first end to the second end;

and/or the width dimension of the projection of the arm body on the second plane increases and decreases from the first end to the second end.

In some embodiments, the arm body includes a first arm segment, a second arm segment, and a third arm segment disposed in sequence along an extension direction of a cross section of the arm body, the second arm segment being connected between the first arm segment and the third arm segment, and a thickness dimension of the second arm segment being smaller than a thickness dimension of any one of the first arm segment and the third arm segment.

In some embodiments, the first and second connection portions are bushing structures or spherical pin structures.

A vehicle of an embodiment of the present disclosure includes a suspension control arm as described in any of the embodiments above.

In some embodiments, a rear suspension is included that includes an upper control arm that is the suspension control arm.

Drawings

Fig. 1 is a schematic perspective view of a suspension control arm of an embodiment of the present disclosure.

Fig. 2 is a schematic view of the plane of symmetry of the suspension control arm of fig. 1.

Fig. 3 is a rear schematic view of the suspension control arm of fig. 1.

Fig. 4 is a left side schematic view of the suspension control arm of fig. 1.

Fig. 5 is a schematic cross-sectional view at A-A in fig. 3.

Fig. 6 is a schematic illustration of a first projection line and a second projection line of a suspension control arm of an embodiment of the present disclosure.

Fig. 7 is a schematic illustration of a third projection line and a fourth projection line of a suspension control arm of an embodiment of the present disclosure.

Reference numerals:

An arm body 1; a first arm segment 11; a second arm segment 12; a third arm segment 13; a first projection line 14; a second projection line 15; a third projection line 16; a fourth projection line 17;

A first connection part 2;

a second connection part 3;

A symmetry plane 4; a first plane 41; a second plane 42;

a first circle 5;

a second circle 6;

a third circle 7;

Fourth circle 8.

Detailed Description

Embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings, are described in detail below. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present disclosure and are not to be construed as limiting the present disclosure.

The present disclosure is made based on the discovery and recognition by the inventors of the following facts and problems:

Based on reasons such as arrangement space, the rear suspension upper control arm in the related art is used for avoiding a rear spring space and a lower car body longitudinal beam space, so that the commonality of the left side and the right side is difficult to balance, left and right parts are required to be distinguished, the part dies are required to be distinguished, and the left and right parts are required to be distinguished in links such as packaging, transportation, warehouse-out and assembly.

Therefore, the invisible cost of assembly, transportation, manual work and the like is greatly increased, and meanwhile, due to the existence of the air spring configuration of the existing part of vehicle types, the larger space occupation of the air spring can cause the fact that the upper control arm of the rear suspension is more difficult to be compatible with the sharing of the left and right parts and different configurations, so that the cost is further improved.

The following describes a suspension control arm of an embodiment of the present disclosure.

As shown in fig. 1, the suspension control arm of the embodiment of the present disclosure includes an arm body 1, a first connection portion 2 and a second connection portion 3, wherein the arm body 1 is of a symmetrical structure and has a symmetry plane 4, for example, as shown in fig. 2, the symmetry plane 4 may be one plane perpendicular to the left-right direction and located substantially in the middle of the arm body 1, the arm body 1 may be divided into two parts based on the symmetry plane 4, the two parts being a left half part and a right half part, respectively, and the left half part and the right half part of the arm body 1 are arranged in mirror symmetry with respect to the symmetry plane 4.

The first connecting portion 2 is disposed at a first end of the arm body 1, the second connecting portion 3 is disposed at a second end of the arm body 1, and the first connecting portion 2 and the second connecting portion 3 are symmetrically disposed about the symmetry plane 4. For example, as shown in fig. 1 and 2, the arm body 1 extends generally in the left-right direction, the first end may be the left end of the arm body 1, and the second end may be the right end of the arm body 1. A part of the first connecting portion 2 and a part of the second connecting portion 3 may be integrally formed with the arm body 1. When the suspension is used, the first connecting part 2 and the second connecting part 3 can be pivoted or hinged with other control walls or accessories of the frame and the suspension, so that the use requirements of swing and limit constraint of the suspension control arm are met.

It should be noted that, as illustrated in fig. 2, the first connection portion 2 and the second connection portion 3 may have the same structure, and the first connection portion 2 and the second connection portion 3 may be disposed in mirror symmetry with respect to the symmetry plane 4. Thereby, the first connecting portion 2 and the second connecting portion 3 can both be assembled and fixed with the same mounting point.

Alternatively, the arm body 1 may be made of wrought aluminum, wrought steel, cast iron, or the like. At this time, a part of the first connecting portion 2 and the second connecting portion 3 may be integrally formed with the arm body 1 by casting or the like, thereby sufficiently securing the structural strength of the suspension control arm as a whole.

The whole suspension control arm of the embodiment of the disclosure is of a symmetrical structure, and the control arms of the left side suspension and the right side suspension of the vehicle can be universal during assembly, so that the condition that the suspensions in the prior art need to distinguish left and right parts is avoided, the cost of development, transportation, packaging and the like of the suspensions is reduced, and the transportation and assembly efficiency is also improved.

In some embodiments, the arm 1 is arcuate. For example, as shown in fig. 1 to 3, the arm body 1 may be generally U-shaped or C-shaped, that is, the arm body 1 may extend generally in the left-right direction, and the middle portion of the arm body 1 may be bent downward and convex.

Therefore, on one hand, the overall structural strength and rigidity of the arm body 1 can be enhanced, and on the other hand, the avoiding effect can be achieved by bending the arm body 1, so that the shape of the arm body 1 can be matched with the space formed by surrounding parts.

In some embodiments, the plane defined orthogonal to the plane of symmetry 4 and passing through the axis of the first connection 2 and the axis of the second connection 3 is a first plane 41, the plane defined orthogonal to both the plane of symmetry 4 and the first plane 41 is a second plane 42, and the projections of the arm 1 on both the first plane 41 and the second plane 42 are arc-shaped, for example, the projections of the arm 1 on both the first plane 41 and the second plane 42 are generally crescent-shaped.

Specifically, the first connecting portion 2 and the second connecting portion 3 may be of a bushing structure or a spherical pin structure, and the axes of the first connecting portion 2 and the second connecting portion 3 may extend along the front-rear direction, so that a horizontal plane, i.e. the first plane 41, may be limited by the axes of the first connecting portion 2 and the second connecting portion 3.

The projection of the suspension control arm onto the first plane 41 can be regarded as a shape profile exhibited by the suspension control arm in fig. 7, in which view the arm body 1 is generally C-shaped, and the middle portion of the arm body 1 can be curved and convex to the rear side. Therefore, the front side of the arm body 1 can play a role in avoiding, and the structural strength of the arm body 1 in the front-rear direction can be improved.

The second plane 42 is a plane perpendicular to both the symmetry plane 4 and the first plane 41, and the second plane 42 is also a vertical plane, and the projection of the suspension control arm on the lane of the second plane 42 can be regarded as the shape profile shown by the suspension control arm in fig. 6, in this view, the arm body 1 is also generally C-shaped, and the middle part of the arm body 1 can be bent and protruded downward, so that the upper side of the arm body 1 can play a role of avoiding, and the structural strength of the arm body 1 in the up-down direction can be promoted.

In some embodiments, the outer surface of the arm body 1 has a first projection line 14 and a second projection line 15 formed by projection on the second plane 42, the first projection line 14 and the second projection line 15 are oppositely arranged in a normal direction of the first plane 41, the first projection line 14 is in a circular arc shape, the first projection line 14 corresponds to the first circle 5 and is formed through a part of the first circle 5, the second projection line 15 is in a circular arc shape, the second projection line 15 corresponds to the second circle 6 and is formed through a part of the second circle 6, and a center of the first circle 5 and a center of the second circle 6 are located on the same side of the arm body 1.

For example, the first plane 41 may be a horizontal plane, and a normal direction of the first plane 41 may be an up-down direction, as shown in fig. 6, having the first projection line 14 and the second projection line 15 on the outer surface of the arm body 1. As shown in fig. 6, the first projection line 14 may be regarded as an upper contour line of the projection of the arm body 1 in the front-rear direction, and the second projection line 15 may be regarded as a lower contour line of the projection of the arm body 1 in the front-rear direction. The first projection line 14 and the second projection line 15 are both arc-shaped, wherein the first projection line 14 can be regarded as a part of an arc of the first circle 5 (a circle corresponding to Φa in fig. 6), the second projection line 15 can be regarded as a part of an arc of the second circle 6 (a circle corresponding to Φb in fig. 6), and the center of the first circle 5 and the center of the second circle 6 can be both located on the upper side of the arm body 1. Thereby, both the first projection line 14 and the second projection line 15 are made to curve downward and convex, so that the upper side of the arm body 1 can be made to form an avoidance effect.

In some embodiments, the first projection line 14 is closer to the center of the first circle 5 than the second projection line 15, e.g. the first projection line 14 is located on the upper side of the second projection line 15, and the radius of the first circle 5 is larger than the radius of the second circle 6, i.e. the diameter Φa of the first circle 5 is larger than the diameter Φb of the second circle 6. Thereby, the dimension of the arm body 1 in the front-rear direction can be made to have a gradual effect, so that the overall structural strength can be further improved.

In some embodiments, the center of the first circle 5 and the center of the second circle 6 are both located on the symmetry plane 4. Thereby, symmetry of the radians of the first projection line 14 and the second projection line 15 is ensured.

In some embodiments, the outer surface of the arm body 1 has a third projection line 16 and a fourth projection line 17 formed by projection on the first plane 41, the third projection line 16 and the fourth projection line 17 are oppositely arranged in a normal direction of the second plane 42, the third projection line 16 is in a circular arc shape, the third projection line 16 corresponds to a third circle 7 and is formed by a part of the third circle 7, the fourth projection line 17 is in a circular arc shape, the fourth projection line 17 corresponds to a fourth circle 8 and is formed by a part of the fourth circle 8, and a center of the third circle 7 and a center of the fourth circle 8 are located on the same side of the arm body 1.

For example, the second plane 42 may be a vertical plane, and a normal direction of the second plane 42 may be a front-rear direction, as shown in fig. 7, with the third projection line 16 and the fourth projection line 17 on the outer surface of the arm body 1. The third projection line 16 may be regarded as a front contour line of the projection of the arm body 1 in the up-down direction, and the fourth projection line 17 may be regarded as a rear contour line of the projection of the arm body 1 in the up-down direction.

The third projection line 16 and the fourth projection line 17 are both arc-shaped, wherein the third projection line 16 may be regarded as a part of an arc of the third circle 7 (a circle corresponding to Φc in fig. 7), the fourth projection line 17 may be regarded as a part of an arc of the fourth circle 8 (a circle corresponding to Φd in fig. 7), and both the center of the third circle 7 and the center of the fourth circle 8 may be located at the front side of the arm body 1. Thereby, the third projection line 16 and the fourth projection line 17 are each curved and convex rearward, so that the front side of the arm body 1 can be made to have an avoidance effect.

In some embodiments, the third projection line 16 is closer to the center of the third circle 7 than the fourth projection line 17, e.g., the third projection line 16 is located on the inner surface (which may be considered as the front surface) of the arm body 1, and the fourth projection line 17 is located on the outer surface (which may be considered as the rear surface) of the arm body 1. The radius of the third circle 7 is larger than the radius of the fourth circle 8, i.e. the diameter Φc of the third circle 7 is larger than the diameter Φd of the fourth circle 8. Thereby, the dimension of the arm body 1 in the front-rear direction can be made to have a gradual effect, so that the overall structural strength can be further improved.

In some embodiments, the center of the third circle 7 and the center of the fourth circle 8 are both located on the symmetry plane 4, thereby ensuring symmetry of the radians of the third projection line 16 and the fourth projection line 17.

In some embodiments, the extension direction of the projection of the arm body 1 on the symmetry plane 4 forms an acute angle with the axial direction of the first connection portion 2 or the axial direction of the second connection portion 3.

For example, as shown in fig. 4 and 5, the axis of the first connecting portion 2 and the axis of the second connecting portion 3 each extend substantially in the front-rear direction, the arm body 1 is disposed obliquely substantially in the front-up-rear-down direction, and the projection of the arm body 1 on the symmetry plane 4 also extends substantially in the front-up-rear-down direction, and the angle formed by the extending direction of the projection of the arm body 1 on the symmetry plane 4 and the axis of the first connecting portion 2 may be an angle α, which is an acute angle.

Thereby, on the one hand, the shape of the arm body 1 can be adapted to the space formed by surrounding parts, and on the other hand, the arm body 1 has inclination components in the up-down direction and the front-back direction, so that the arm body 1 can be ensured to have higher structural strength and rigidity in different directions.

In some embodiments, the width dimension of the projection of the arm 1 onto the first plane 41 increases and decreases in a direction from the first end to the second end. Specifically, as shown in fig. 7, the width dimension of the projection of the arm body 1 on the first plane 41 may be regarded as the dimension of the arm body 1 in the front-rear direction, which may be increased and then decreased in the left-to-right direction, so that the torsional strength of the middle portion of the arm body 1 may be improved.

In some embodiments, the width dimension of the projection of the arm 1 onto the second plane 42 increases and decreases in a direction from the first end to the second end. Specifically, as shown in fig. 6, the width dimension of the projection of the arm body 1 on the second plane 42 may be regarded as the dimension of the arm body 1 in the up-down direction, which may be increased and then decreased in the left-to-right direction, so that the torsional strength of the middle portion of the arm body 1 may be further improved.

In some embodiments, as shown in fig. 5, the arm body 1 includes a first arm segment 11, a second arm segment 12, and a third arm segment 13 disposed in this order along the lateral direction (which can be regarded as the extending direction of the cross section) of the arm body 1, the second arm segment 12 is connected between the first arm segment 11 and the third arm segment 13, and the thickness dimension of the second arm segment 12 is smaller than the thickness dimension of either one of the first arm segment 11 and the third arm segment 13. Thereby, the arm body 1 is made to be a generally i-beam, so that the structural strength and torsional strength of the arm body 1 can be further improved.

The following describes a vehicle of an embodiment of the present disclosure.

The vehicle of the embodiments of the present disclosure includes a suspension control arm, which may be the suspension control arm described in any of the embodiments described above. The vehicle can be a new energy vehicle, in particular a car, SUV, bus, pick-up car and other types of vehicles.

In some embodiments, the vehicle includes a rear suspension including an upper control arm, the upper control arm being a suspension control arm. It should be noted that, the vehicle includes two rear suspensions, and two rear suspensions are arranged respectively in the left side and the right side of vehicle, because suspension control arm is symmetrical structure to make the last control arm of two rear suspensions can the position interchangeable and general, thereby avoided needing to distinguish the condition of left control arm and right control arm strictly among the prior art, and then reduced the whole assembly process of rear suspension, promoted assembly efficiency, also corresponding reduction because need distinguish the cost problem that causes about the piece.

While the above embodiments have been shown and described, it will be understood that the above embodiments are illustrative and not to be construed as limiting the present disclosure, and that variations, modifications, alternatives, and variations of the above embodiments will be within the scope of the present disclosure by those of ordinary skill in the art.

Claims (15)

1. A suspension control arm, comprising:

the arm body is of a symmetrical structure, and is provided with a symmetrical plane which is positioned in the middle of the arm body and enables two parts of the arm body to be in mirror symmetry;

The first connecting portion is arranged at the first end of the arm body, the second connecting portion is arranged at the second end of the arm body, and the first connecting portion and the second connecting portion are symmetrically arranged relative to the symmetry plane.

2. The suspension control arm as claimed in claim 1, wherein the arm body is arc-shaped.

3. The suspension control arm according to claim 2, wherein a plane that defines an axis orthogonal to the symmetry plane and passing through the first connection portion and the second connection portion is a first plane, a plane that defines an axis orthogonal to both the symmetry plane and the first plane is a second plane, and projections of the arm body on both the first plane and the second plane are curved and extend.

4. The suspension control arm according to claim 3, wherein the outer surface of the arm body has a first projection line and a second projection line formed by projection on the second plane, the first projection line and the second projection line being arranged opposite each other in a normal direction of the first plane, the first projection line being circular-arc-shaped, and the first projection line corresponding to a first circle and formed via a portion of the first circle, the second projection line being circular-arc-shaped, and the second projection line corresponding to a second circle and formed via a portion of the second circle, a center of the first circle and a center of the second circle being on the same side of the arm body.

5. The suspension control arm of claim 4, wherein the first projection line is closer to a center of the first circle than the second projection line, and wherein a radius of the first circle is greater than a radius of the second circle.

6. The suspension control arm as claimed in claim 4, wherein the center of the first circle and the center of the second circle are both located on the symmetry plane.

7. The suspension control arm according to claim 4, wherein the outer surface of the arm body has a third projection line and a fourth projection line formed by projection on the first plane, the third projection line and the fourth projection line being arranged opposite each other in a normal direction of the second plane, the third projection line being circular-arc-shaped, and the third projection line corresponding to a third circle and formed via a portion of the third circle, the fourth projection line being circular-arc-shaped, and the fourth projection line corresponding to a fourth circle and formed via a portion of the fourth circle, a center of the third circle and a center of the fourth circle being on the same side of the arm body.

8. The suspension control arm according to claim 7, wherein the third projection line is closer to a center of the third circle than the fourth projection line, a radius of the third circle being larger than a radius of the fourth circle.

9. The suspension control arm as claimed in claim 7, wherein the center of the third circle and the center of the fourth circle lie on the symmetry plane.

10. A suspension control arm according to claim 3, wherein the extension direction of the projection of the arm body on the symmetry plane forms an acute angle with the axial direction of the first connection portion or the axial direction of the second connection portion.

11. The suspension control arm as claimed in claim 3, wherein a projected width dimension of the arm body on the first plane increases and then decreases in a direction from the first end to the second end;

and/or the width dimension of the projection of the arm body on the second plane increases and decreases from the first end to the second end.

12. The suspension control arm according to claim 1, wherein the arm body includes a first arm segment, a second arm segment, and a third arm segment that are disposed in this order along an extending direction of a cross section of the arm body, the second arm segment is connected between the first arm segment and the third arm segment, and a thickness dimension of the second arm segment is smaller than a thickness dimension of either one of the first arm segment and the third arm segment.

13. The suspension control arm as claimed in any one of claims 1-12, wherein the first and second connection portions are bushing structures or spherical pin structures.

14. A vehicle comprising a suspension control arm according to any one of claims 1 to 13.

15. The vehicle of claim 14, comprising a rear suspension including an upper control arm, the upper control arm being the suspension control arm.