Multi-connecting-rod rear suspension and automobile

Abstract

The multi-connecting-rod rear suspension comprises a vehicle body rear floor, a vehicle body rear longitudinal beam is arranged on the vehicle body rear floor, a first connecting rod and a second connecting rod are arranged on the vehicle body rear longitudinal beam, and a rear longitudinal arm assembly and a hub assembly are arranged on the two sides of the vehicle body rear floor. A shock absorber and a spring are arranged between the vehicle body rear floor and the hub assembly. According to the multi-connecting-rod rear suspension and the automobile, the automobile body rear longitudinal beam is used for replacing an original auxiliary frame, mounting points are provided for the connecting rods, the overall height of the rear suspension is reduced, and therefore the height of a rear floor of an automobile body is reduced, and the space of a trunk is enlarged; the structure is simple and easy to realize; an auxiliary frame is omitted, so that the rear suspension is simpler in overall structure, light in weight and low in cost; the shock absorber and the spring are integrated, parts are simplified, and cost and weight are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile rear suspension, and more specifically, to a multi-link rear suspension and an automobile. Background Art

[0002] In recent years, as automobile products have become increasingly rich and automobile functions have become increasingly complex, users' requirements for vehicle space have also become higher and higher.

[0003] The rear multi-link suspension of current models is composed of a subframe, shock absorbers, springs, connecting rods, etc. Affected by the height of the subframe and springs, the height of the rear longitudinal beam of the vehicle body is relatively high, resulting in a high rear floor and limited trunk space.

[0004] Therefore, there is an urgent need for a multi-link rear suspension and a car. Summary of the invention

[0005] The purpose of the present invention is to provide a multi-link rear suspension and a car to solve the above-mentioned problems in the prior art, replace the original subframe with the rear longitudinal beam of the car body, provide a mounting point for the connecting rod, reduce the overall height of the rear suspension, thereby reducing the height of the rear floor of the car body and expanding the luggage compartment space.

[0006] The present invention provides a multi-link rear suspension, which comprises: a vehicle body rear floor, a vehicle body rear longitudinal beam is arranged on the vehicle body rear floor, a first connecting rod and a second connecting rod are arranged on the vehicle body rear longitudinal beam, a rear longitudinal arm assembly and a wheel hub assembly are arranged on both sides of the vehicle body rear floor, and a shock absorber and a spring are arranged between the vehicle body rear floor and the wheel hub assembly.

[0007] In the multi-link rear suspension as described above, preferably, the spring is integrated with the shock absorber.

[0008] In the multi-link rear suspension as described above, preferably, the spring is sleeved on the shock absorber.

[0009] In the multi-link rear suspension as described above, preferably, the first link and the second link are respectively arranged between the wheel hub assembly and the rear longitudinal beam of the vehicle body.

[0010] The present invention also provides a car comprising the multi-link rear suspension.

[0011] The present invention provides a multi-link rear suspension and an automobile, and proposes a rear suspension form without a subframe, in which a rear longitudinal beam of a vehicle body is used to replace the original subframe, and a mounting point is provided for a connecting rod, so that the overall height of the rear suspension is reduced, thereby reducing the height of the rear floor of the vehicle body and expanding the luggage compartment space; the structure is simple and easy to implement; the subframe is eliminated, and the overall structure of the rear suspension is simpler, light in weight and low in cost; the shock absorber and the spring are integrated, the parts are simplified, and the cost and weight are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described below with reference to the accompanying drawings, in which:

[0013] Figure 1 A schematic structural diagram of an embodiment of a multi-link rear suspension provided by the present invention;

[0014] Figure 2 for Figure 1 AA section view in the figure.

[0015] Explanation of the reference numerals: 1- shock absorber, 2- spring, 3- rear longitudinal beam of vehicle body, 4- rear floor of vehicle body, 5- wheel hub assembly, 6- first connecting rod, 7- second connecting rod, 8- rear longitudinal arm assembly. DETAILED DESCRIPTION

[0016] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the present disclosure and its application or use. The present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present disclosure thorough and complete and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the components and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limiting.

[0017] The words "first", "second" and similar words used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprises" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0018] In the present disclosure, when a specific component is described as being located between a first component and a second component, there may or may not be an intermediate component between the specific component and the first component or the second component. When a specific component is described as being connected to other components, the specific component may be directly connected to the other components without an intermediate component, or may not be directly connected to the other components but have an intermediate component.

[0019] All terms (including technical terms or scientific terms) used in the present disclosure have the same meanings as those understood by ordinary technicians in the field to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0020] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0021] The rear multi-link suspension of current models is composed of a subframe, shock absorbers, springs, connecting rods, etc., wherein one end of the first link and the second link is fixed to the wheel hub assembly, and the other end is fixed to the rear subframe; one end of the spring is fixed to the rear cross arm assembly, and the other end is fixed to the lower surface of the rear longitudinal beam of the vehicle body. Affected by the installation of the rear subframe and springs, the height of the rear floor cannot be lowered, and the trunk height cannot be maximized.

[0022] like Figure 1 and Figure 2 As shown, the multi-link rear suspension provided in this embodiment includes: a vehicle body rear floor 4, on which a vehicle body rear longitudinal beam 3 is arranged, on which a first connecting rod 6 and a second connecting rod 7 are arranged, on which a rear longitudinal arm assembly 8 and a wheel hub assembly 5 are arranged on both sides of the vehicle body rear floor 4, and between which a shock absorber 1 and a spring 2 are arranged.

[0023] The present invention eliminates the subframe and directly fixes the first connecting rod 6 and the second connecting rod 7 on the rear longitudinal beam 3 of the vehicle body, so that the height of the rear longitudinal beam 3 of the vehicle body and the rear floor 4 of the vehicle body can be reduced, and the space of the trunk can be significantly increased.

[0024] The first connecting rod 6 and the second connecting rod 7 are respectively arranged between the wheel hub assembly 5 and the rear longitudinal beam 3 of the vehicle body.

[0025] Furthermore, the spring 2 is integrated with the shock absorber 1. Specifically, the spring 2 is sleeved on the shock absorber 1. The shock absorber 1 and the spring 2 are integrated to simplify parts and components, and reduce cost and weight.

[0026] The present invention realizes a rear suspension design without a subframe structure by transferring the rear suspension connecting rod fixing point to the rear longitudinal beam 3 of the vehicle body, and integrates the shock absorber 1 with the spring 2 to reduce the overall height of the rear suspension and expand the trunk space.

[0027] The present invention also provides an automobile, comprising the multi-link rear suspension.

[0028] The multi-link rear suspension and automobile provided in the embodiments of the present invention propose a rear suspension form without a subframe, in which the original subframe is replaced by the rear longitudinal beam of the vehicle body to provide a mounting point for the connecting rod, so that the overall height of the rear suspension is reduced, thereby reducing the height of the rear floor of the vehicle body and expanding the luggage compartment space; the structure is simple and easy to implement; the subframe is eliminated, and the overall structure of the rear suspension is simpler, light in weight and low in cost; the shock absorber and spring are integrated, the parts are simplified, and the cost and weight are reduced.

[0029] So far, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0030] Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A multi-link rear suspension, characterized in that: include: A vehicle body rear floor is provided with a vehicle body rear longitudinal beam on the vehicle body rear floor, a first connecting rod and a second connecting rod are provided on the vehicle body rear longitudinal beam, a rear longitudinal arm assembly and a wheel hub assembly are provided on both sides of the vehicle body rear floor, and a shock absorber and a spring are provided between the vehicle body rear floor and the wheel hub assembly.

2. The multi-link rear suspension according to claim 1, characterized in that: The spring is integrated with the shock absorber.

3. The multi-link rear suspension according to claim 2, characterized in that: The spring sleeve is arranged on the shock absorber.

4. The multi-link rear suspension according to claim 1, characterized in that: The first connecting rod and the second connecting rod are respectively arranged between the wheel hub assembly and the rear longitudinal beam of the vehicle body.

5. A car, characterized in that: A multi-link rear suspension comprising the multi-link rear suspension as described in any one of claims 1 to 4.

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