Rear auxiliary frame assembly and vehicle

Abstract

The utility model discloses a rear auxiliary frame assembly and a vehicle, the rear auxiliary frame assembly comprises a rear auxiliary frame main body, the rear auxiliary frame main body comprises a front cross beam, a rear cross beam, a left longitudinal beam and a right longitudinal beam, the front cross beam and the rear cross beam, the left longitudinal beam and the right longitudinal beam are all constructed into tubular beams and are connected with each other, and the rear cross beam and the left longitudinal beam are connected with each other. Control arm mounting brackets are symmetrically arranged on the left longitudinal beam and the right longitudinal beam; the two ends of the reinforcing beam are connected with the front cross beam and the rear cross beam respectively, the reinforcing beam is symmetrically arranged between the front cross beam and the rear cross beam, and the reinforcing beam is fixed to the control arm installation support. According to the rear auxiliary frame assembly, the front cross beam, the rear cross beam, the left longitudinal beam and the right longitudinal beam are of a tubular beam structure, the overall weight is reduced, the reinforcing beam is arranged to be connected with the control arm installation support, the front cross beam and the rear cross beam, the lateral rigidity and the longitudinal rigidity of the rear auxiliary frame assembly are improved, and the comfort of a whole vehicle is improved.

Description

Technical Field

[0001] The utility model relates to the field of vehicles, in particular to a rear subframe assembly and a vehicle. Background Art

[0002] In the prior art, the main structure of the rear subframe is mostly made of sheet metal parts stamped and welded, which has a complex structure, a low lightweight level, and a relatively high cost. In order to increase the rigidity of the subframe, the method of increasing the main body size and material thickness is usually adopted, which makes the overall weight of the subframe large. In order to meet the lightweight demand, the main body strength can be increased by installing a reinforcing beam, but it is usually a transverse reinforcing beam structure, and the reinforcing beam is not installed on the main load-bearing transverse and longitudinal beams, which has a poor effect on improving the lateral rigidity of the subframe, and the versatility of the suspension mounting structure of the subframe is poor. Therefore, how to optimize the subframe structure so that it can achieve lightweight while improving its strength and improve the versatility of the suspension mounting structure has become a problem to be solved in this field. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a rear subframe assembly. The rear subframe assembly of the utility model constructs the front crossbeam, the rear crossbeam, the left longitudinal beam and the right longitudinal beam into a tubular beam structure to reduce the overall weight, and by providing a reinforcing beam connected to the control arm mounting bracket and the front crossbeam and the rear crossbeam, the lateral stiffness and longitudinal stiffness of the rear subframe assembly are improved, thereby improving the comfort of the entire vehicle.

[0004] The utility model also provides a vehicle with the rear subframe assembly.

[0005] According to the utility model, the rear subframe assembly includes: a rear subframe body, the rear subframe body includes a front crossbeam and a rear crossbeam, a left longitudinal beam and a right longitudinal beam, the front crossbeam and the rear crossbeam, the left longitudinal beam and the right longitudinal beam are all constructed as tubular beams and connected to each other, the left longitudinal beam and the right longitudinal beam are symmetrically provided with control arm mounting brackets; a reinforcing beam, the two ends of the reinforcing beam are respectively connected to the front crossbeam and the rear crossbeam and are symmetrically arranged between the front crossbeam and the rear crossbeam, and the reinforcing beam is fixed to the control arm mounting bracket.

[0006] According to the rear subframe assembly of the utility model, the front cross beam, the rear cross beam, the left longitudinal beam and the right longitudinal beam are constructed as tubular beams and connected to each other, so that the structure of the rear subframe main body is simpler and easier to process, and the weight of the rear subframe assembly is lower, thereby achieving lightweight of the entire vehicle. Control arm mounting brackets are respectively provided on the left longitudinal beam and the right longitudinal beam, and the reinforcing beam is respectively connected to the front cross beam, the rear cross beam and the control arm mounting bracket, thereby solving the problem of weak structural rigidity of the control arm mounting bracket, improving the lateral stiffness and longitudinal stiffness of the rear subframe assembly, reducing vehicle body vibration, and improving the comfort of the entire vehicle.

[0007] According to some embodiments of the utility model, the reinforcing beam is constructed in plurality and the middle portions of the plurality of reinforcing beams are bent in a direction away from each other, and a support portion is formed at the bend of each of the reinforcing beams and is arranged opposite to the control arm mounting bracket, and the support portion is connected to the control arm mounting bracket.

[0008] According to some embodiments of the present invention, the reinforcement beam is configured as a tubular beam.

[0009] According to some embodiments of the utility model, suspension mounting brackets are symmetrically arranged on the left longitudinal beam and the right longitudinal beam, and avoidance gaps open toward each other are formed on the two suspension mounting brackets, and the avoidance gaps penetrate to the top of the suspension mounting brackets in the height direction, and suspension mounting seats recessed downward in the height direction are formed on the front and rear sides of the avoidance gaps.

[0010] According to some embodiments of the present invention, the end of the front cross beam and the end of the rear cross beam are respectively provided with a bushing installation portion, and a bushing is provided in the bushing installation portion.

[0011] According to some embodiments of the present invention, the rear subframe assembly also includes: a first reinforcement and a second reinforcement, wherein two ends of the first reinforcement are respectively connected to the front cross beam and the left longitudinal beam, and two ends of the second reinforcement are respectively connected to the front cross beam and the right longitudinal beam.

[0012] According to some embodiments of the present invention, a plurality of weight-reducing holes are respectively provided on the first reinforcement member and the second reinforcement member.

[0013] A vehicle according to another embodiment of the present invention will be briefly described below.

[0014] The vehicle according to the utility model includes the rear subframe assembly described in any one of the above-mentioned embodiments. Since the vehicle according to the utility model includes the rear subframe assembly described in any one of the above-mentioned embodiments, the rear subframe on the vehicle according to the utility model has higher strength and smaller weight, and the suspension mounting structure in the vehicle has higher versatility.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1It is a structural schematic diagram of a rear subframe assembly according to an embodiment of the utility model.

[0018] Reference numerals:

[0019] Rear subframe assembly 1;

[0020] Front cross beam 111, rear cross beam 112, left longitudinal beam 113, and right longitudinal beam 114;

[0021] The reinforcing beam 12 ; the control arm mounting bracket 13 ; the suspension mounting bracket 14 , the avoidance gap 141 , the suspension mounting seat 142 , the mounting hole 1421 ; the bushing 15 ; the first reinforcing member 161 , and the second reinforcing member 162 . DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] In the prior art, the main structure of the rear subframe is mostly made of sheet metal parts stamped and welded, which has a complex structure, a low lightweight level, and a relatively high cost. In order to increase the rigidity of the subframe, the method of increasing the main body size and material thickness is usually adopted, which makes the overall weight of the subframe large. In order to meet the lightweight demand, the main body strength can be increased by installing a reinforcing beam, but it is usually a transverse reinforcing beam structure, and the reinforcing beam is not installed on the main load-bearing transverse and longitudinal beams, which has a poor effect on improving the lateral rigidity of the subframe, and the versatility of the suspension mounting structure of the subframe is poor. Therefore, how to optimize the subframe structure so that it can achieve lightweight while improving its strength and improve the versatility of the suspension mounting structure has become a problem to be solved in this field.

[0024] Reference below Figure 1 A rear subframe assembly according to an embodiment of the present utility model is described.

[0025] According to the utility model, the rear subframe assembly 1 includes: a rear subframe body, the rear subframe body includes a front crossbeam 111 and a rear crossbeam 112, a left longitudinal beam 113 and a right longitudinal beam 114, the front crossbeam 111 and the rear crossbeam 112, the left longitudinal beam 113 and the right longitudinal beam 114 are all constructed as tubular beams and connected to each other, the left longitudinal beam 113 and the right longitudinal beam 114 are symmetrically provided with a control arm mounting bracket 13; a reinforcing beam 12, the two ends of the reinforcing beam 12 are respectively connected to the front crossbeam 111 and the rear crossbeam 112 and are symmetrically arranged between the front crossbeam 111 and the rear crossbeam 112, and the reinforcing beam 12 is fixed to the control arm mounting bracket 13.

[0026] Specifically, the front cross beam 111, the rear cross beam 112, the left longitudinal beam 113 and the right longitudinal beam 114 are all constructed as a tubular beam structure, and the rear sub-frame main structure is simply formed, which reduces the complexity of the rear sub-frame main structure, thereby reducing the mold cost of the rear sub-frame main structure, and the front cross beam 111, the rear cross beam 112, the left longitudinal beam 113 and the right longitudinal beam 114 are all constructed as tubular beams, so that the total weight of the rear sub-frame main body is lower, wherein the control arm mounting bracket 13 is symmetrically arranged on the left longitudinal beam 113 and the right longitudinal beam 114, and the control arm mounting bracket 13 is used to connect and fix the control arm, and is between the front cross beam 111 and the rear cross beam 112. A reinforcing beam 12 is provided. The reinforcing beam 12 is constructed into two and is symmetrically arranged between the front cross beam 111 and the rear cross beam 112. Each reinforcing beam 12 is fixed to a control arm mounting bracket 13 respectively. Since the control arm mounting bracket 13 is arranged on the left longitudinal beam 113 and the right longitudinal beam 114, the reinforcing beam 12 is not only connected to the front cross beam 111 and the rear cross beam 112, but also overlaps with the left longitudinal beam 113 and the right longitudinal beam 114, thereby improving the structural rigidity of the front cross beam 111, the rear cross beam 112, the left longitudinal beam 113 and the right longitudinal beam 114, improving the comfort of the whole vehicle, and the structure of the reinforcing beam 12 is simple, and the processing technology is simpler, which is conducive to reducing the processing cost.

[0027] According to the rear sub-frame assembly 1 of the utility model, the front cross beam 111, the rear cross beam 112, the left longitudinal beam 113 and the right longitudinal beam 114 are constructed as tubular beams and connected to each other, so that the structure of the rear sub-frame main body is simpler and easier to process, and the weight of the rear sub-frame assembly 1 is lower, thereby achieving lightweight of the entire vehicle. Control arm mounting brackets 13 are respectively provided on the left longitudinal beam 113 and the right longitudinal beam 114, and the support beams are respectively connected to the front cross beam 111, the rear cross beam 112 and the control arm mounting bracket 13, thereby solving the problem of weak structural rigidity of the control arm mounting bracket 13, improving the lateral stiffness and longitudinal stiffness of the rear sub-frame assembly 1, reducing vehicle body vibration, and improving the comfort of the entire vehicle.

[0028] According to some embodiments of the utility model, the reinforcing beam 12 is constructed as a plurality of reinforcing beams 12, and the middle portions of the plurality of reinforcing beams 12 are bent in a direction away from each other, and a support portion is formed at the bend of each reinforcing beam 12 and is arranged opposite to the control arm mounting bracket 13, and the support portion is connected to the control arm mounting bracket 13.

[0029] like Figure 1As shown in the figure, there are two reinforcing beams 12, and the middle parts of the two reinforcing beams 12 are bent in directions away from each other, and a support portion that is directly opposite to and connected to the control arm mounting bracket 13 is formed at the bending part of each reinforcing beam 12. The control arm mounting bracket 13 is arranged on the left longitudinal beam 113 and the right longitudinal beam 114. The two ends of the reinforcing beam 12 are respectively connected to the front cross beam 111 and the rear cross beam 112, and the support portion on the reinforcing beam 12 is connected to the control arm mounting bracket 13, so that the structural rigidity of the control arm mounting bracket 13 and the left longitudinal beam 113 and the right longitudinal beam 114 is improved, and the lateral rigidity and longitudinal rigidity of the rear subframe body are improved, so as to avoid severe vibration during the driving of the vehicle, which is beneficial to improving the comfort of the whole vehicle.

[0030] According to some embodiments of the present invention, the reinforcement beam 12 is configured as a tubular beam.

[0031] Specifically, the reinforcing beam 12 is constructed as a tubular beam, which has a simple structure and high structural strength, which is beneficial to improving the overall rigidity of the rear subframe body, reducing vehicle body vibration, and improving the comfort of the entire vehicle. In addition, the weight of the tubular beam is low, so constructing the reinforcing beam 12 as a tubular beam is beneficial to achieving lightweight of the rear subframe assembly 1.

[0032] According to some embodiments of the utility model, suspension mounting brackets 14 are symmetrically arranged on the left longitudinal beam 113 and the right longitudinal beam 114, and avoidance gaps 141 open toward each other are formed on the two suspension mounting brackets 14. The avoidance gaps 141 penetrate to the top of the suspension mounting bracket 14 in the height direction, and suspension mounting seats 142 recessed downward in the height direction are formed on the front and rear sides of the avoidance gaps 141.

[0033] Specifically, avoidance gaps 141 open toward each other are respectively formed on the two suspension mounting brackets. After the suspension is installed on the suspension mounting bracket, the avoidance gap 141 is used to avoid the suspension. At least a portion of the suspension is accommodated in the avoidance gap 141 to facilitate the installation of the suspension. Suspension mounting seats 142 are formed on the front and rear sides of the avoidance gap 141. The suspension mounting seats 142 are recessed downward in the height direction of the suspension mounting bracket 14 to reduce the installation height of the suspension. A mounting hole 1421 is provided on the suspension mounting seat. The suspension can be connected to the mounting hole 1421 by bolts. Since the suspension is accommodated in the cavity of the avoidance gap 141, more space is made available for motor arrangement inside the sub-frame, so that the sub-frame can match and install motors of various models, thereby improving the versatility of the sub-frame.

[0034] According to some embodiments of the present invention, the ends of the front cross beam 111 and the ends of the rear cross beam 112 are respectively provided with bushing installation portions, and bushings 15 are provided in the bushing installation portions.

[0035] Specifically, the bushing 15 is constructed as a rubber part. The bushing 15 is provided at the end of the front cross beam 111 and the rear cross beam 112. The bushing 15 is provided between the rear subframe body and the vehicle body, and can isolate the vibration and noise from the subframe, and improve the NVH (noise, vibration and harshness) performance of the vehicle. Since the bushing 15 can reduce the vibration and noise of the vehicle, the passengers will feel less bumps and noise during driving, thereby improving the riding comfort.

[0036] According to some embodiments of the present invention, the rear subframe assembly 1 further includes a first reinforcement 161 and a second reinforcement 162, wherein two ends of the first reinforcement 161 are respectively connected to the front cross beam 111 and the left longitudinal beam 113, and two ends of the second reinforcement 162 are respectively connected to the front cross beam 111 and the right longitudinal beam 114.

[0037] Specifically, a first reinforcement 161 is arranged between the front cross beam 111 and the left longitudinal beam 113, and a second reinforcement 162 is arranged between the front cross beam 111 and the right longitudinal beam 114. A stable supporting structure is formed between the first reinforcement 161 and the front cross beam 111 and the left longitudinal beam 113, and a stable supporting structure is formed between the second reinforcement 162 and the front cross beam 111 and the right longitudinal beam 114, so as to avoid deformation between the front cross beam 111 and the left longitudinal beam 113 and the right longitudinal beam 114, thereby improving the structural strength between the front cross beam 111 and the left longitudinal beam 113 and the right longitudinal beam 114.

[0038] According to some embodiments of the present invention, a plurality of weight-reducing holes are respectively provided on the first reinforcement 161 and the second reinforcement 162. By providing a plurality of weight-reducing holes on the first reinforcement 161 and the second reinforcement 162, the weight of the first reinforcement 161 and the second reinforcement 162 is reduced to achieve lightweighting.

[0039] The vehicle according to the present utility model is briefly described below.

[0040] The vehicle according to the utility model includes the rear subframe assembly 1 described in any one of the above-mentioned embodiments. Since the vehicle according to the utility model includes the rear subframe assembly 1 described in any one of the above-mentioned embodiments, the rear subframe on the vehicle according to the utility model has higher strength and smaller weight, and the suspension mounting structure in the vehicle has higher versatility.

[0041] In the description of the present invention, it should be understood that the terms "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 indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0042] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0043] In the description of the present invention, "plurality" means two or more.

[0044] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.

[0045] In the description of the present invention, a first feature “above”, “over” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" 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 utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0047] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A rear subframe assembly, characterized in that: include: A rear subframe body, the rear subframe body comprising a front crossbeam (111) and a rear crossbeam (112), a left longitudinal beam (113) and a right longitudinal beam (114), the front crossbeam (111) and the rear crossbeam (112), the left longitudinal beam (113) and the right longitudinal beam (114) are all constructed as tubular beams and are connected to each other, and the left longitudinal beam (113) and the right longitudinal beam (114) are symmetrically provided with control arm mounting brackets (13); A reinforcing beam (12), wherein two ends of the reinforcing beam (12) are respectively connected to the front cross beam (111) and the rear cross beam (112) and are symmetrically arranged between the front cross beam (111) and the rear cross beam (112), and the reinforcing beam (12) is fixed to the control arm mounting bracket (13).

2. The rear subframe assembly according to claim 1, characterized in that: The reinforcing beam (12) is constructed as a plurality of reinforcing beams (12), and the middle portions of the plurality of reinforcing beams (12) are bent in a direction away from each other, and a support portion is formed at the bend of each reinforcing beam (12) and is arranged opposite to the control arm mounting bracket (13), and the support portion is connected to the control arm mounting bracket (13).

3. The rear subframe assembly according to claim 2, characterized in that: The reinforcing beam (12) is configured as a tubular beam.

4. The rear subframe assembly according to claim 2, characterized in that: Suspension mounting brackets (14) are symmetrically arranged on the left longitudinal beam (113) and the right longitudinal beam (114); avoidance notches (141) open toward each other are formed on the two suspension mounting brackets (14); the avoidance notches (141) penetrate to the top of the suspension mounting bracket (14) in the height direction; and suspension mounting seats (142) recessed downward in the height direction are formed on the front and rear sides of the avoidance notches (141).

5. The rear subframe assembly according to claim 1, characterized in that: The end of the front cross beam (111) and the end of the rear cross beam (112) are respectively provided with bushing mounting portions, and bushings (15) are arranged in the bushing mounting portions.

6. The rear subframe assembly according to claim 1, characterized in that: Also includes: A first reinforcement member (161) and a second reinforcement member (162), wherein two ends of the first reinforcement member (161) are respectively connected to the front cross beam (111) and the left longitudinal beam (113), and two ends of the second reinforcement member (162) are respectively connected to the front cross beam (111) and the right longitudinal beam (114).

7. The rear subframe assembly according to claim 6, characterized in that: The first reinforcement member (161) and the second reinforcement member (162) are respectively provided with a plurality of weight-reducing holes.

8. A vehicle, characterized in that: The invention comprises a rear subframe assembly as claimed in any one of claims 1 to 7.

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