CN220842110U

CN220842110U - Suspension system and vehicle

Info

Publication number: CN220842110U
Application number: CN202322805428.0U
Authority: CN
Inventors: 邬勇
Original assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Remote Commercial Vehicle R&D Co Ltd; Zhejiang Geely Remote New Energy Commercial Vehicle Group Co Ltd
Current assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Remote Commercial Vehicle R&D Co Ltd; Zhejiang Geely Remote New Energy Commercial Vehicle Group Co Ltd
Priority date: 2023-10-18
Filing date: 2023-10-18
Publication date: 2024-04-26
Anticipated expiration: 2033-10-18

Abstract

The utility model discloses a suspension system and a vehicle, wherein the suspension system comprises two trailing arms and two shock absorber assemblies, and the two trailing arms comprise a connecting part used for being connected with a vehicle body, a wheel rim part used for installing the wheel rim assembly and an installing part; one end of the shock absorber assembly is arranged on one mounting part, and the other end of the shock absorber assembly is inclined along the direction away from the wheel edge part and is used for being connected with a vehicle body. Compared with the traditional plate spring suspension, the technical scheme of the utility model is beneficial to enlarging the space of a container.

Description

Suspension system and vehicle

Technical Field

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

Background

Light new energy logistics vehicles play a role in transporting goods at the tail ends, and the demand of vehicles is also increasing. The light new energy logistics vehicles are more and more stored, the competition is aggravated, and the low-cargo-level and large-volume logistics vehicles are the main stream requirements of the current light new energy logistics vehicles.

Disclosure of utility model

The main purpose of the utility model is to provide a suspension system, which aims to increase the square quantity of a container of a vehicle under the condition of the same vehicle height.

To achieve the above object, the present utility model provides a suspension system comprising:

the two trailing arms comprise connecting parts used for being connected with a vehicle body, wheel edge parts used for installing the wheel edge assembly and installing parts; and

And one end of the shock absorber assembly is installed on one installation part, and the other end of the shock absorber assembly is inclined along the direction away from the wheel edge part and is used for being connected with a vehicle body.

Optionally, an angle between one of the damper assemblies and one of the trailing arms is A, 30A 75 or more.

Optionally, the connecting part comprises an external connection part close to the rim part and an internal connection part which is inwards relative to the external connection part, and the external connection part and the internal connection part are arranged in a y shape.

Optionally, the suspension system further includes a coil spring, the trailing arm further includes a fixing portion, one end of the coil spring is mounted on the fixing portion, the other end of the coil spring is connected with the vehicle body, the mounting portion and the fixing portion are located on two opposite sides of the wheel rim portion, the mounting portion is close to the external connection portion, and the fixing portion is close to the internal connection portion.

Optionally, the suspension system further comprises a cushion bearing portion for abutting against a cushion block of the vehicle body.

Optionally, the buffer bearing part includes a first bearing part and a second bearing part, the first bearing part is located at an intersection of the external connection part and the internal connection part, the second bearing part is located at the fixing part, and the buffer block is matched with the first bearing part or the second bearing part.

Optionally, the external connection part is provided with a first inner lining part, the internal connection part is provided with a second inner lining part, an included angle between a connecting line of the circle centers between the first inner lining part and the second inner lining part and a horizontal line is Q, and the range of the angle Q is 4-12 degrees.

Optionally, the external connection part and the internal connection part have a height difference H in the height direction of the vehicle body, and the range of H is 5mm-30mm.

Optionally, the suspension system further comprises a stabilizer bar, and the two trailing arms are connected through the stabilizer bar.

The utility model also proposes a vehicle comprising a suspension system as described above.

According to the technical scheme, the two trailing arms and the two shock absorber assemblies are adopted, and each trailing arm comprises a connecting part used for being connected with a vehicle body, a wheel edge part used for installing the wheel edge assembly and an installing part; one end of the shock absorber assembly is arranged on one mounting part, and the other end of the shock absorber assembly is inclined along the direction away from the wheel edge part and is used for being connected with a vehicle body; the intersection between the damper assembly and the trailing arm is in an angle, and the requirements of the front drive, the rear drive and the four drives of the light new energy logistics vehicle on the same platform arrangement can be met by adopting a trailing arm structure; the space occupied by the container is very small, the arrangement is convenient, and a large amount of space can be saved in the container body, so that the square quantity of the container can be improved compared with the traditional plate spring suspension; and the shock absorber assembly adopts the slope to arrange, compares in traditional vertical arrangement scheme, and the peak of shock absorber assembly reduces to make cargo bed height reduce, under the prerequisite of equal car height, be favorable to increasing the packing box space.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a suspension system according to an embodiment of the present utility model;

FIG. 2 is a schematic view of the structure of FIG. 1 from another view;

FIG. 3 is a schematic view of another embodiment of a suspension system according to the present utility model;

FIG. 4 is a schematic view of the structure of FIG. 3 from another view;

fig. 5 is a schematic structural diagram of another view of fig. 3.

Reference numerals illustrate:

Reference numerals	Name of the name	Reference numerals	Name of the name
				100	Suspension system	260	Fixing part
200	Trailing arm	270	Buffer bearing part
				210	Connecting part	271	A first bearing part
220	External connection part	272	A second bearing part
				221	A first inner lining part	300	Shock absorber assembly
230	Inner joint	400	Spiral spring
				231	Second inner lining part	500	Buffer block
240	Rim portion	600	Stabilizer bar
				250	Mounting part	700	Wheel rim system

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indications (such as up, down, left, right, front, back … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular gesture (as shown in the drawings), and if the particular gesture changes, the directional indication changes accordingly.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides a suspension system, which aims to increase the square quantity of a container of a vehicle under the condition of the same vehicle height.

Referring to fig. 1 to 5, in an embodiment of the present utility model, the suspension system 100 includes two trailing arms 200 and two damper assemblies 300, the suspension system 100 belongs to a rear suspension, and is located under a cargo box of a vehicle, that is, at a rear wheel of the vehicle, and each of the trailing arms 200 includes a connection portion 210 for connection with a vehicle body, a rim portion 240 for mounting the rim assembly, and a mounting portion 250; the rim portion 240 is used to mount a rim system 700, and the rim system 700 is composed of main parts such as a tire, a rim, a hub, etc., and transmits motion and force, positions the tire, and supports the whole vehicle. The two wheel edge parts 240 are connected through a driving shaft, so that the requirements of the same-platform arrangement of the front drive, the rear drive and the four drives of the light new energy logistics car can be met.

To increase the square of the cargo box of the vehicle under the same vehicle height, one end of the shock absorber assembly 300 is mounted to one of the mounting portions 250, and the other end is inclined in a direction away from the rim portion 240 and is connected to the vehicle body; an intersection between one of the damper assemblies 300 and one of the trailing arms 200 is angled. The adoption of the trailing arm 200 structure occupies very little space of a cargo box, is well arranged, can save a large amount of space in the cabin body, so that the square quantity of the cargo box can be improved compared with the traditional plate spring suspension, and the shock absorber assembly 300 is obliquely arranged, so that the vehicle cargo box is at least reduced by 15% on the basis of the plate spring suspension, and as can be understood, the highest point of the shock absorber assembly 300 is obliquely arranged, so that the height of the cargo box is reduced, and the square quantity of the cargo box space is improved by about 10% on the premise of the same vehicle height.

According to the technical scheme, two trailing arms 200 and two shock absorber assemblies 300 are adopted, wherein each trailing arm 200 comprises a connecting part 210 used for being connected with a vehicle body, a wheel rim part 240 used for installing the wheel rim assembly and an installing part 250; one end of the damper assembly 300 is mounted to one of the mounting portions 250, and the other end is inclined in a direction away from the rim portion 240 and is adapted to be coupled to a vehicle body; the intersection between one damper assembly 300 and one trailing arm 200 is in an angle, and the requirements of the same-platform arrangement of front driving, rear driving and four driving of the light new energy logistics vehicle can be met by adopting the structure of the trailing arm 200; the space occupied by the container is very small, the container is well arranged, and a large amount of space can be saved in the container body, so that the square quantity of the container can be improved compared with the traditional plate spring suspension; and the shock absorber assembly 300 adopts the slope to arrange, compares in traditional vertical arrangement scheme, and the peak of shock absorber assembly 300 reduces to make cargo bed height reduce, the cargo box space square volume promotes about 10% under the prerequisite of equal car height.

Referring to FIG. 3, in particular, the angle between one of the damper assemblies 300 and one of the trailing arms 200 is A, 30A 75. When the angle between the damper assembly 300 and the trailing arm 200 is less than 30 °, the damping effect of the damper assembly 300 is difficult to ensure, and when the angle between the damper assembly 300 and the trailing arm 200 is greater than 75 °, the cargo bed off-ground height is reduced only to a limited extent, and the lifting of the cargo bed space is not obvious. In one embodiment, the angle between the damper assembly 300 and the trailing arm 200 is 30 °. In another embodiment, the angle between the damper assembly 300 and the trailing arm 200 is 40 °, and in particular, in this embodiment, a is 45 °, which can ensure operation of the damper assembly 300 and increase the cargo box space volume on the premise of equal body heights.

Referring to fig. 1 to 5, specifically, the connecting portion 210 includes an external connection portion 220 near the rim portion 240 and an internal connection portion 230 relatively inward of the external connection portion 220, and the external connection portion 220 and the internal connection portion 230 are arranged in a y-shape, so that space can be saved, occupation of space of a cargo box can be reduced, the structure is simple, the cost is low, and under the same vehicle weight, the self weight of the trailing arm 200 is lower, and the vehicle carrying capacity is improved in a phase-change manner.

Specifically, in one embodiment, the suspension system 100 further includes a coil spring 400, the trailing arm 200 further includes a fixing portion 260, one end of the coil spring 400 is mounted on the fixing portion 260, the other end is connected to the vehicle body, the mounting portion 250 and the fixing portion 260 are located at two sides opposite to the rim portion 240, the mounting portion 250 is near the external portion 220, the fixing portion 260 is near the internal portion 230, the rim portion 240 is located at an end of the y-shape, the damper assembly 300 is located at two opposite sides of the y-shape, and the coil spring 400 is disposed behind the wheel axis, so that the bearing force of the coil spring 400 is reduced under the same load. Here, the wheel axis refers to a connecting line between the left and right wheels, the wheel axis passes through the shock absorber assembly 300 and the spiral spring 400, and the rear frame of the spiral spring 400 and the front frame of the shock absorber assembly are arranged in a staggered interval between the two, so that enough space is reserved for driving shafts, and the requirements of the same-platform arrangement of the front drive, the rear drive and the four drives of the light new energy logistics vehicle are conveniently met. And the damper assembly 300 and the coil springs 400 are positioned on two opposite sides of the wheel axis, the damper assembly 300 is arranged in front of the wheel axis, the stroke of the damper assembly 300 can be reduced, the utilization rate of the suspended space after the lifting is improved, the vertex of the damper assembly 300 is inclined inwards by a certain angle, so that the height of the upper point of the damper assembly 300 can be reduced, the ground clearance of the vehicle cargo platform, namely the bottom plate of the container is reduced, and the space square quantity of the container is improved.

In another embodiment, coil spring 400 is disposed with a shock absorber.

Specifically, the fixing portion 260 does not exceed the upper surface of the trailing arm 200, and in an embodiment, the fixing portion 260 is inclined from the upper surface to the lower surface, so that the height of the fixing portion 260 is reduced, the space between the cargo box and the trailing arm 200 is not occupied, the installation height of the coil spring 400 is advantageously increased, the vibration reduction effect is also advantageously increased, and the riding comfort is advantageously improved.

Further, the suspension system 100 further includes a buffer bearing portion 270, the buffer bearing portion 270 is configured to abut against a buffer block 500 of the vehicle body, the buffer block 500 is mounted on the vehicle body, and during a downward movement of the vehicle body, the buffer block 500 abuts against the buffer bearing portion 270, so as to avoid interference between the vehicle body and the wheels.

In an embodiment, the buffer carrier 270 may be welded or riveted or bolted to the trailing arm 200, i.e., two separate pieces prior to assembly; in another embodiment, the buffer bearing 270 is a structure of a buffer block 500 formed on the trailing arm 200 and adapted to the vehicle body, and is integrally formed with the trailing arm 200.

In order to adapt to different vehicle types, the buffer carrier 270 includes a first carrier 271 and a second carrier 272, the first carrier 271 is located at an intersection of the external connection portion 220 and the internal connection portion 230, the second carrier 272 is located at the fixing portion 260, and the buffer block 500 is matched with the first carrier 271 or the second carrier 272. Specifically, the buffer block 500 may be disposed on different frames according to the design load and comfort requirements of the vehicle, for example, when the load is small and the comfort requirements are high, the buffer block 500 is matched with the second bearing portion 272 disposed inside the coil spring behind the wheel axis when acting; when the rear suspension arrangement space utilization rate and comfort are required to be improved, such as a large load and low comfort requirement, the buffer block 500 can be matched with the first bearing part 271 arranged in front of the wheel axis during the action.

Referring to fig. 4, in order to enhance riding comfort of an occupant and to enhance traveling comfort of an automobile and passing performance of a complex road surface, the external connection portion 220 is provided with a first internal portion 221, the internal connection portion 230 is provided with a second internal portion 231, an angle between a line of a center of a circle between the first internal portion 221 and the second internal portion 231 and a horizontal line between the external connection portion 220 and the internal connection portion 230 is Q, and the angle Q ranges from 4 ° to 12 °. Further, the external connection part 220 and the internal connection part 230 have a height difference H in the height direction of the vehicle body in a range of 5mm to 30mm. Therefore, the vehicle can be ensured to have higher roll center, roll control is enhanced, and driving safety is improved. The suspension system 100 thus forms a rear independent suspension bridge system that has excellent shock absorbing performance, stable driving performance, and excellent braking effect. The coil spring 400 and the damper assembly ensure that the trailing arm assembly oscillates up and down at a relatively smooth rate over a prescribed range of amplitude, and the oscillations of the left and right rear trailing arms 200 are relatively independent, thereby allowing the two rear wheels to also move relatively independently.

Further, the suspension system 100 further includes a stabilizer bar 600, and the stabilizer bars 600 through which the brackets of the two trailing arms 200 are connected. Specifically, when the vehicle turns, the vehicle body is tilted, the jumping of the trailing arms 200 at the two sides is inconsistent, the outer trailing arms 200 can press the stabilizer bar 600, the stabilizer bar 600 can twist, the elasticity of the bar body can prevent the wheels from lifting, so that the vehicle body is balanced as much as possible, the transverse stabilizing effect is achieved, and the vehicle body is balanced as much as possible.

The present utility model also proposes a vehicle, which includes a suspension system 100, where the specific structure of the suspension system 100 refers to the above embodiment, and since the vehicle adopts all the technical solutions of all the above embodiments, the vehicle has at least all the beneficial effects brought by the technical solutions of the above embodiments, which are not described in detail herein.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. A suspension system comprising:

2. The suspension system of claim 1 wherein an angle between one of said shock absorber assemblies and one of said trailing arms is a,30 ° or more a or less than 75 °.

3. The suspension system of claim 2 wherein said connection portion includes an outboard portion proximate to the rim portion and an inboard portion inboard of said outboard portion, said outboard portion and said inboard portion being disposed in a y-shape.

4. The suspension system of claim 3 wherein the suspension system further comprises a coil spring, the trailing arm further comprising a securing portion, one end of the coil spring being mounted to the securing portion and the other end being adapted to be coupled to the vehicle body, the mounting portion and the securing portion being located on opposite sides of the rim portion, the mounting portion being adjacent the external portion, the securing portion being adjacent the internal portion.

5. The suspension system of claim 4 further comprising a shock mount for abutting a shock bump of a vehicle body.

6. The suspension system of claim 5 wherein the shock absorbing carrier includes a first carrier portion and a second carrier portion, the first carrier portion being located at the intersection of the outer and inner connection portions, the second carrier portion being located at the fixed portion, the shock absorbing mass being mated with either the first carrier portion or the second carrier portion.

7. The suspension system of claim 3 wherein the outer joint portion is provided with a first inner joint portion and the inner joint portion is provided with a second inner joint portion, wherein an angle between a line connecting centers of circles of the first inner joint portion and the second inner joint portion and a horizontal line is Q, and wherein the angle Q ranges from 4 ° to 12 °.

8. The suspension system according to claim 3 wherein the external connection portion and the internal connection portion have a height difference H in the height direction of the vehicle body, the H being in the range of 5mm to 30mm.

9. The suspension system of claim 1 further comprising a stabilizer bar, the stabilizer bar being connected between the two trailing arms.

10. A vehicle comprising a suspension system as claimed in any one of claims 1 to 9.