Front swing arm bushing, front auxiliary frame and vehicle body anti-falling structure and vehicle
By designing the front swing arm bushing to increase the connection point between the front subframe and the body, the problem of the front subframe and the body falling off during vehicle collisions is solved, the vehicle safety and modality of the front subframe are improved, and the cost is reduced .
Patent Information
- Application Number
- CN202420999875.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-09
AI Technical Summary
In a vehicle collision, the fall of the front subframe and the rear mounting point of the body will cause the body longitudinal beam to bend and deformation, and the passenger compartment will deform, thereby increasing the risk of occupants injury, and there is a risk of the power battery being squeezed and caught fire.
By designing a front swing arm bushing, including a bushing body, a first mounting part and a second mounting part, it is connected to the front swing arm, a front subframe and a vehicle body, and the connection point between the front subframe and the vehicle body is increased. Make sure the front subframe remains connected to the body during a collision.
The modality of the front subframe and vehicle driving safety are improved, the front subframe and body fall off, and the cost is reduced. No other structural parts are added, and new structural parts are adapted to.
Smart Images
Figure CN222310306U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of vehicles, in particular to a front swing arm bushing, a front auxiliary frame and a vehicle body anti-falling structure and a vehicle. Background Art
[0002] In a vehicle collision, the front subframe is one of the important structures for transmitting collision force. It is necessary to prevent the front subframe from falling off from the rear mounting point of the vehicle body as much as possible. Once the rear mounting point of the front subframe falls off from the vehicle body, the following safety hazards will arise:
[0003] 1. Due to the lack of rear mounting point support, the front subframe lacks a structure for transmitting force backwards, which increases the bending deformation of the body longitudinal beam, resulting in increased deformation of the passenger compartment, and thus increases the risk of injury to the occupants;
[0004] 2. If there is a power battery pack at the rear of the front subframe, there is a risk of the front subframe squeezing the battery pack, thereby increasing the risk of the power battery catching fire.
[0005] In order to solve the above problems, the connection strength of the original mounting points can be improved or the mounting points of the front subframe and the vehicle body can be increased. In the prior art, the mounting points of the front subframe and the vehicle body are often increased by increasing the connection structure between the front subframe and the vehicle body. Although the above technical problems are solved, the cost is also increased. The present application solves the above technical problems by improving the front swing arm bushing connecting the front subframe and the front swing arm. Utility Model Content
[0006] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a front swing arm bushing, a front subframe and a body anti-falling structure and a vehicle, which are used to solve the problem of the front subframe and the body falling off during a vehicle collision in the prior art.
[0007] To achieve the above-mentioned purpose and other related purposes, the utility model provides a front swing arm bushing, which is specifically configured as follows: it includes a bushing body for connecting to the front swing arm; a first mounting portion connected to one side of the bushing body for connecting to the front subframe; and a second mounting portion connected to the other side of the bushing body for connecting to the vehicle body.
[0008] Optionally, when the front swing arm bushing is installed on a vehicle body, the installation position of the second installation portion is higher than that of the first installation portion.
[0009] Optionally, the bushing body is provided with a first connecting hole, the first mounting portion is provided with a second connecting hole, the second mounting portion is provided with a third connecting hole, the center lines of the third connecting hole and the second connecting hole are arranged in parallel, and the first connecting hole is arranged perpendicular to the center lines of the second connecting hole and the third connecting hole, respectively.
[0010] Optionally, more than one second connection hole is provided, and the plurality of second connection holes are spaced apart and distributed along the length direction of the center line of the first connection hole.
[0011] Optionally, a first connecting portion is provided between the bushing body and the first mounting portion, a second connecting portion is provided between the bushing body and the second mounting portion, and both the first connecting portion and the second connecting portion are provided with weight-reducing holes.
[0012] Optionally, the bushing body, the first mounting portion, the second mounting portion, the first connecting portion and the second connecting portion are integrally formed.
[0013] The utility model also provides a front subframe and vehicle body anti-falling structure, comprising a front subframe, a front swing arm, a vehicle body and any one of the front swing arm bushings described above, wherein the front swing arms are arranged on both sides of the front subframe; the vehicle body is arranged above the front subframe; the front swing arm bushing is connected to the front swing arm through the bushing body, the front swing arm bushing is connected to the front subframe through the first mounting portion, and the front swing arm bushing is connected to the vehicle body through the second mounting portion.
[0014] Optionally, the front subframe and vehicle body anti-falling structure further includes a fastener, and the fastener cooperates with the second connecting hole and the third connecting hole to connect the front swing arm bushing and the front subframe, and the front swing arm bushing and the vehicle body.
[0015] Optionally, the front swing arm bushing is sleeved on the front swing arm through the first connecting hole.
[0016] The utility model also provides a vehicle, the vehicle comprising any one of the above-mentioned front sub-frame and vehicle body anti-falling structures.
[0017] As described above, the front swing arm bushing, the front subframe and the vehicle body anti-falling structure and the vehicle of the utility model have the following beneficial effects:
[0018] By respectively arranging the first mounting portion and the second mounting portion on both sides of the bushing body, the front swing arm bushing is connected to the front swing arm through the bushing body, connected to the front subframe through the first mounting portion, and connected to the vehicle body through the second mounting portion, thereby increasing the mounting points for connecting the front subframe and the vehicle body. In the event that a vehicle collides and the front subframe and the rear mounting points of the vehicle body fall off, the front subframe is still connected to the vehicle body through the front swing arm bushing, which is beneficial to improving the mode of the front subframe itself and also beneficial to improving the driving safety of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 Shown is a schematic structural diagram of a front swing arm bushing according to an embodiment of the utility model;
[0020] Figure 2 It is a schematic structural diagram of a front swing arm bushing from another perspective of an embodiment of the utility model;
[0021] Figure 3 Shown is a schematic structural diagram of the front subframe and vehicle body anti-falling structure of an embodiment of the utility model;
[0022] Figure 4 It is a schematic structural diagram showing the connection between the front sub-frame and the front swing arm of an embodiment of the utility model;
[0023] Figure 5 It is a schematic structural diagram showing the connection between the front swing arm bushing and the front swing arm in an embodiment of the utility model.
[0024] Description of Reference Numerals
[0025] 1-bushing body; 11-first connecting hole;
[0026] 2-first mounting portion; 21-second connecting hole;
[0027] 3-second mounting portion; 31-third connecting hole;
[0028] 4-first connecting portion; 41-weight-reducing hole;
[0029] 5- second connecting portion;
[0030] 6-Front subframe;
[0031] 7-Front swing arm;
[0032] 8-body; 81-longitudinal beam;
[0033] 9- Fasteners. DETAILED DESCRIPTION
[0034] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.
[0035] It should be noted that the illustrations provided in this embodiment are only used to illustrate the basic concept of the utility model in a schematic manner, so the illustrations only show the components related to the utility model rather than being drawn according to the number, shape and size of the components in actual implementation. The form, quantity and proportion of each component in actual implementation can be changed at will, and the layout of the components may be more complicated. The structure, proportion, size, etc. shown in the illustrations attached to this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that can be implemented in the utility model, so they have no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed in the utility model without affecting the effect and purpose that can be achieved by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present utility model. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present utility model without substantially changing the technical content.
[0036] See also Figure 1 to Figure 2 The utility model provides a front swing arm bushing, which includes a bushing body 1, a first mounting portion 2 and a second mounting portion 3 connected to each other, wherein the first mounting portion 2 and the second mounting portion 3 are connected to both sides of the bushing body 1. The first mounting portion 2 and the second mounting portion 3 are arranged at a certain angle, which is set according to the angle between the front subframe and the vehicle body. The bushing body 1 is used to connect with the front swing arm ( Figure 1 , Figure 2 The first mounting portion 2 is used to connect with the front subframe ( Figure 1 , Figure 2 The second mounting portion 3 is used to connect with the vehicle body ( Figure 1 , Figure 2 The front subframe and the vehicle body are connected by the front swing arm bushing (not shown), so that the front subframe and the vehicle body are connected through the front swing arm bushing, thereby increasing the installation position of the front subframe and the vehicle body. In the event of a vehicle collision and the front subframe and the rear installation point of the vehicle body fall off, the front subframe and the vehicle body are still connected through the front swing arm bushing, which is conducive to improving the driving safety of the vehicle.
[0037] For example, since the front subframe and the vehicle body are arranged up and down, in order to facilitate the connection between the front swing arm bushing and the two, when the front swing arm bushing is installed on the vehicle body, the installation position of the second mounting part 3 is higher than the first mounting part 2, that is, the second mounting part 3 is located above the first mounting part 2.
[0038] In some embodiments, the bushing body 1 is provided with a first connection hole 11, which runs through the bushing body 1, and the front swing arm bushing is connected to the front swing arm through the first connection hole 11. The first mounting portion 2 is provided with a second connection hole 21, which runs through the first mounting portion 2, and the front swing arm bushing is connected to the front subframe through the second connection hole 21. The second mounting portion 3 is provided with a third connection hole 31, which runs through the second mounting portion 3, and the front swing arm bushing is connected to the vehicle body through the third connection hole 31. In order to facilitate the connection of the front swing arm bushing with the front swing arm, the front subframe and the vehicle body, the center lines of the third connection hole 31 and the second connection hole 21 are arranged in parallel, and the center lines of the first connection hole 11 and the second connection hole 21, and the first connection hole 11 and the third connection hole 31 are arranged perpendicularly, which is conducive to connecting with the front swing arm bushing without changing the position of the front swing arm, the front subframe and the vehicle body.
[0039] Exemplarily, the thickness of the bushing body 1 can be set to be greater than or equal to 32 mm, that is, the centerline depth of the first connecting hole 11 is greater than or equal to 32 mm, which is conducive to ensuring the strength of the front swing arm bushing itself and avoiding breakage during a collision. The thickness of the first mounting portion 2 can be set to be greater than or equal to 50 mm, that is, the centerline depth of the second connecting hole 21 is greater than or equal to 50 mm, which is conducive to ensuring the connection strength between the front swing arm bushing and the front subframe and avoiding breakage during a collision. The thickness of the second mounting portion 3 can be set to be greater than or equal to 35 mm, that is, the centerline depth of the third connecting hole 31 is greater than or equal to 35 mm, which is conducive to ensuring the connection strength between the front swing arm bushing and the vehicle body and avoiding breakage during a collision.
[0040] In some embodiments, more than one second connection hole 21 is provided, and the number can be set to 1, 2, 3, etc., according to actual needs. When multiple second connection holes 21 are provided, the multiple second connection holes 21 are spaced and distributed along the length direction of the center line of the first connection hole 11. By providing multiple second connection holes 21, the connection strength between the front swing arm bushing and the front subframe is increased. It should be noted that the same number of mounting holes are correspondingly provided on the front subframe so that the mounting holes are matched and connected with the second connection holes 21.
[0041] In this embodiment, two second connecting holes 21 are provided, and two mounting holes matching with the second connecting holes 21 are correspondingly provided on the front sub-frame.
[0042] In some embodiments, a first connection portion 4 is provided between the bushing body 1 and the first mounting portion 2, a second connection portion 5 is provided between the bushing body 1 and the second mounting portion 3, and both the first connection portion 4 and the second connection portion 5 are provided with weight-reducing holes 41, which is beneficial to reducing the weight of the front swing arm bushing. Two adjacent weight-reducing holes 41 of the first connection portion 4 and the second connection portion 5 are connected by ribs, which is beneficial to increasing the strength of the first connection portion 4 and the second connection portion 5.
[0043] Exemplarily, the minimum thickness of the second connecting portion 5 can be set to 25 mm. The thickness of the second connecting portion 5 is the dimension of the radial cross section along the first connecting hole 11, thereby ensuring the connection strength between the bushing body 1 and the second mounting portion 3 to avoid breakage during a collision.
[0044] In some embodiments, the bushing body 1, the first mounting portion 2, the second mounting portion 3, the first connecting portion 4 and the second connecting portion 5 are integrally formed, which is beneficial to improving the strength of the front swing arm bushing itself.
[0045] For example, the material of the front swing arm bushing can be A356 cast aluminum, which is produced by casting.
[0046] See also Figures 3 to 5 The utility model also provides a front sub-frame and vehicle body anti-falling structure, comprising a front sub-frame 6, a front swing arm 7, a vehicle body 8 and the front swing arm bushing. The front swing arm 7 is located on both sides of the front sub-frame 6, the vehicle body 8 is located above the front sub-frame 6, the front swing arm bushing is installed on the front swing arm 7 through a bushing body 1, the front sub-frame 6 is connected to the front swing arm bushing through a first mounting portion 2 of the front swing arm bushing, and the vehicle body 8 is connected to the front swing arm bushing through a second mounting portion 3 of the front swing arm bushing, so that the front sub-frame 6 and the vehicle body 8 are indirectly connected through the front swing arm bushing, thereby adding a mounting point for the front sub-frame 6 to be connected to the vehicle body 8. When the vehicle collides and the rear mounting point connecting the front subframe 6 and the vehicle body 8 is disconnected, the newly added mounting point through the front swing arm bushing allows the front subframe 6 and the vehicle body 8 to continue to maintain a connection relationship, so as to keep the front subframe 6 continuing to transmit the collision force to the vehicle body 8 during the collision, which is beneficial to improving the mode of the front subframe 6 itself and also beneficial to reducing the damage to the occupants caused by the collision.
[0047] It should be noted that in the prior art, the front swing arm bushing is only used to connect the front subframe 6 and the front swing arm 7. The present application improves the structure of the front swing arm bushing so that the front swing arm bushing can be used not only to connect the front subframe 6 and the front swing arm 7, but also to connect the vehicle body 8 and the front swing arm 7, so that the front subframe 6 and the vehicle body 8 are indirectly connected, and the installation points connected between the front subframe 6 and the vehicle body 8 are increased, which is conducive to solving the problem of the front subframe 6 and the vehicle body 8 falling off during the vehicle collision, and is also conducive to providing better performance for the NVH (noise, vibration and harshness) of the vehicle. In addition, the present application does not add other structural parts to increase the installation points between the front subframe 6 and the vehicle body 8, which is conducive to reducing costs, and is also conducive to reducing changes to the structures of other structural parts to adapt to the newly added structural parts.
[0048] Specifically, the front swing arm bushing is connected to the longitudinal beam 81 of the vehicle body 8 through the second mounting portion 3 .
[0049] Exemplarily, the front swing arm bushing is sleeved on the front swing arm 7 through the first connecting hole 11 , and the first connecting hole 11 is interference fit with the front swing arm 7 so as to fix the front swing arm bushing on the front swing arm 7 .
[0050] In some embodiments, the anti-drop structure of the front subframe 6 mounting point further includes a fastener 9, which cooperates with the second connecting hole 21 and the third connecting hole 31 to connect the front swing arm bushing to the front subframe 6, and the front swing arm bushing to the vehicle body 8.
[0051] Exemplarily, the fastener 9 is used to connect the front swing arm bushing and the front subframe 6, the front swing arm bushing and the vehicle body 8, including but not limited to being set as a screw or the like.
[0052] The utility model also provides a vehicle, which comprises the above-mentioned front sub-frame and vehicle body anti-falling structure.
[0053] In summary, the utility model provides a front swing arm bushing, a front subframe and a vehicle body anti-falling structure, and a vehicle, wherein a first mounting portion and a second mounting portion are respectively arranged on both sides of a bushing body, wherein the front swing arm bushing is connected to the front swing arm through the bushing body, connected to the front subframe through the first mounting portion, and connected to the vehicle body through the second mounting portion, thereby increasing the mounting points for connecting the front subframe and the vehicle body. When the vehicle collides and the rear mounting points of the front subframe and the vehicle body fall off, the front subframe is still connected to the vehicle body through the front swing arm bushing, which is beneficial to improving the mode of the front subframe itself and also beneficial to improving the driving safety of the vehicle. No new structural parts are added, which is beneficial to controlling costs.
[0054] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.
Claims
1. A front swing arm bushing, characterized in that: include: The bushing body is provided with a first connecting hole for connecting with the front swing arm; A first mounting portion, connected to one side of the bushing body, provided with a second connecting hole for connecting to a front sub-frame; A second mounting portion, connected to the other side of the bushing body, is provided with a third connecting hole for connecting to the vehicle body; The center lines of the third connection hole and the second connection hole are arranged in parallel, and the first connection hole is arranged perpendicular to the center lines of the second connection hole and the third connection hole respectively.
2. The front swing arm bushing according to claim 1, characterized in that: When the front swing arm bushing is installed on a vehicle body, the installation position of the second installation portion is higher than that of the first installation portion.
3. The front swing arm bushing according to claim 1, characterized in that: There is more than one second connection hole, and the plurality of second connection holes are spaced apart along the length direction of the center line of the first connection hole.
4. The front swing arm bushing according to claim 1, characterized in that: A first connecting portion is provided between the bushing body and the first mounting portion, a second connecting portion is provided between the bushing body and the second mounting portion, and both the first connecting portion and the second connecting portion are provided with weight-reducing holes.
5. The front swing arm bushing according to claim 4, characterized in that: The bushing body, the first mounting portion, the second mounting portion, the first connecting portion, and the second connecting portion are integrally formed.
6. A front subframe and vehicle body anti-falling structure, characterized in that: include: front subframe; A front swing arm, arranged on both sides of the front subframe; A vehicle body, arranged above the front subframe; The front swing arm bushing as described in any one of claims 1 to 5, wherein the front swing arm bushing is connected to the front swing arm through the bushing body, the front swing arm bushing is connected to the front subframe through the first mounting portion, and the front swing arm bushing is connected to the vehicle body through the second mounting portion.
7. The front subframe and vehicle body anti-falling structure according to claim 6, characterized in that: The front subframe and vehicle body anti-falling structure further includes a fastener, which cooperates with the second connecting hole and the third connecting hole to connect the front swing arm bushing and the front subframe, and the front swing arm bushing and the vehicle body.
8. The front subframe and vehicle body anti-falling structure according to claim 6 or 7, characterized in that: The front swing arm bushing is sleeved on the front swing arm through the first connecting hole.
9. A vehicle, characterized in that: The vehicle comprises a front subframe and vehicle body anti-falling structure as described in any one of claims 6 to 8.