Subframe mechanism and vehicle
By setting a limiting component, including a limiting element and an elastic element, between the subframe and the exhaust pipe, the design challenge of the gap between the exhaust pipe and the subframe was solved, thereby improving stability and vibration isolation.
Patent Information
- Application Number
- CN202520262150.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-02-18
AI Technical Summary
In the shared platform design of pure electric and range-extended electric vehicles, the gap design between the exhaust pipe and the subframe is difficult to balance the normal operation of the power system, vehicle stability and overall performance, especially how to reduce the gap to improve vibration isolation.
The system employs a limiting assembly, including a limiting member, a limiting seat, and an elastic member. The elastic member provides elastic support between the limiting member and the limiting seat, thereby limiting the minimum gap between the subframe and the exhaust pipe, preventing contact or collision, and reducing noise and vibration.
It effectively reduces the gap between the subframe and the exhaust pipe, improving vehicle stability and vibration isolation, and avoiding noise and vibration caused by collisions.
Smart Images
Figure CN223721007U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of vehicles, in particular to a subframe mechanism and a vehicle. BACKGROUND
[0002] In the current development process of automobile products, platformization and architecture design patterns have been widely applied in the development of various vehicle models, especially on the basis of chassis and body architecture, while being compatible with different types of power systems (such as motors, engines) and electronic and electrical systems. For the co-platform design of pure electric and extended-range electric vehicles, vehicle design faces multiple challenges, among which the gap design between the exhaust pipe and the subframe has become a major problem. Due to the different structures of the power systems of pure electric vehicles and extended-range electric vehicles, the arrangement of the exhaust pipe and the subframe in the traditional design needs to be optimized in a limited space to ensure the normal operation of the power system and the overall performance of the vehicle. Under such complex design requirements, how to effectively reduce the gap between the exhaust pipe and the subframe, both to ensure the stability and safety of the vehicle and to improve the vibration isolation effect of the whole vehicle, has become a technical problem to be solved. CONTENT OF THE UTILITY MODEL
[0003] The technical problem solved by the present application is to provide a subframe mechanism and a vehicle that can reduce the gap between the subframe and the exhaust pipe and improve the stability of the subframe mechanism.
[0004] To solve the above technical problems, one technical solution adopted by the present application is to provide a subframe mechanism, comprising: a subframe; an exhaust pipe, which is spaced apart from the subframe in a first direction; and a limiting assembly provided at the gap, comprising a limiting piece, a limiting seat, and an elastic piece, the limiting piece being connected to the exhaust pipe, the limiting seat being connected to the subframe, the limiting piece and the limiting seat being movably connected in the first direction, the elastic piece being elastically supported between the limiting piece and the limiting seat, and the elastic piece being extendable in the first direction.
[0005] Among them, the limiting piece comprises a limiting disc and a limiting shaft arranged coaxially, the limiting disc is connected to the end of the limiting shaft, and the limiting seat is provided with a mounting hole for the limiting shaft to pass through; wherein the elastic piece is sleeved on the limiting shaft, and the elastic piece is elastically supported between the limiting disc and the limiting seat.
[0006] Among them, the limiting piece further comprises a limiting ball arranged on the side of the limiting disc away from the limiting shaft and connected to the limiting disc; at the same time, the subframe mechanism further comprises: a limiting tray connected to the exhaust pipe, and the limiting tray is provided with a limiting groove for receiving the limiting ball, the shape of the limiting groove matches the shape of the limiting ball, so that the limiting ball can rotate in the limiting groove.
[0007] The outer edge surface of the limiting tray is provided with a guide surface, so that the limiting ball is installed along the guide surface.
[0008] The exhaust pipe is provided with a limiting tray mounting hole for mounting the limiting tray.
[0009] The limiting seat comprises a connecting shaft connected to the auxiliary frame at one end and provided with the mounting hole for the limiting shaft at the other end, and a connecting disc connected to the other end of the connecting shaft, wherein the connecting disc comprises a connecting ring coaxially arranged with the connecting shaft and an inner side wall of the connecting ring connected to the annular side wall of the connecting shaft.
[0010] The elastic member comprises a spring, and the spring is sleeved on the limiting shaft.
[0011] The auxiliary frame mechanism further comprises a connecting piece, the auxiliary frame is provided with a first support, the exhaust pipe is provided with a second support, and the connecting piece is sleeved on the first support and the second support.
[0012] The material of the connecting piece comprises rubber.
[0013] To solve the above technical problems, another technical solution adopted by the present application is to provide a vehicle comprising the auxiliary frame mechanism according to any one of the above.
[0014] The beneficial effects of the present application are as follows: different from the prior art, the limiting assembly is arranged between the exhaust pipe and the auxiliary frame in the present application, the limiting assembly is used to reduce the interval between the auxiliary frame and the exhaust pipe, which facilitates the development of the structure, the limiting assembly comprises a limiting piece, a limiting seat and an elastic member, the elastic member is elastically supported between the limiting piece and the limiting seat, the limiting piece is connected to the exhaust pipe, the limiting seat is connected to the auxiliary frame, the minimum interval between the auxiliary frame and the exhaust pipe is limited by the elastic member, and contact or collision between the auxiliary frame and the exhaust pipe is avoided, so that the noise and vibration caused by the collision are avoided. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. Among them:
[0016] Figure 1 is a structural schematic view of an embodiment of the auxiliary frame mechanism of the present application;
[0017] Figure 2 is Figure 1A side view of the middle sub-frame mechanism;
[0018] Figure 3 is Figure 2 A partial enlarged view at A in the middle;
[0019] Figure 4 is Figure 3 An exploded view of the limiting assembly in the middle;
[0020] Figure 5 is Figure 4 A structural schematic view of the limiting piece in the middle;
[0021] Figure 6 is Figure 4 A structural schematic view of the limiting seat in the middle;
[0022] Figure 7 is Figure 4 A structural schematic view of the limiting tray in the middle;
[0023] Figure 8 is Figure 1 A structural schematic view of an embodiment of the connecting piece in the middle. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.
[0025] In the prior art, the exhaust pipe and the sub-frame are only installed by rubber lugs, and the gap between the two usually needs to be greater than 25 mm. Since the pure electric vehicle type and the extended range vehicle type share a platform design, the driving motor and the battery of the pure electric vehicle type are arranged relatively low, and there is no exhaust pipe structure. After the exhaust pipe is added to the extended range vehicle type, the gap range makes it difficult to design the gap between the exhaust pipe and the sub-frame after the exhaust pipe meets the ground clearance requirement. In order to reduce the gap between the exhaust pipe and the sub-frame, the following technical solutions are proposed.
[0026] Referring to Figures 1 to 4 , the sub-frame mechanism 1 includes a sub-frame 10, an exhaust pipe 20, and a limiting assembly 30.
[0027] In the first direction X, the exhaust pipe 20 and the auxiliary frame 10 are provided with a gap, and the limiting assembly 30 is arranged at the gap, the limiting assembly 30 comprising a limiting piece 310, a limiting seat 320 and an elastic piece 330, the limiting piece 310 being connected with the exhaust pipe 20, the limiting seat 320 being connected with the auxiliary frame 10, and the limiting piece 310 and the limiting seat 320 being movably connected in the first direction X, and the elastic piece 330 being elastically supported between the limiting piece 310 and the limiting seat 320 and being stretchable in the first direction X.
[0028] Specifically, the limiting assembly 30 is arranged at the gap between the exhaust pipe 20 and the auxiliary frame 10, for connecting the exhaust pipe 20 and the auxiliary frame 10, wherein the limiting piece 310 is connected with the exhaust pipe 20, the limiting seat 320 is connected with the auxiliary frame 10, the elastic piece 330 is arranged between the limiting piece 310 and the limiting seat 320, the limiting piece 310 and the limiting seat 320 are used for limiting the activity range of the elastic piece 330, and the elastic piece 330 is stretchable in the first direction X, so that the limiting piece 310 and the limiting seat 320 are movably connected in the first direction X.
[0029] In the present application, the limiting assembly 30 is arranged between the exhaust pipe 20 and the auxiliary frame 10, so as to reduce the gap between the auxiliary frame 10 and the exhaust pipe 20, facilitate the development of architecture, and the limiting assembly 30 comprises the limiting piece 310, the limiting seat 320 and the elastic piece 330, the elastic piece 330 is elastically supported between the limiting piece 310 and the limiting seat 320, the limiting piece 310 is connected with the exhaust pipe 20, and the limiting seat 320 is connected with the auxiliary frame 10, and the minimum gap between the auxiliary frame 10 and the exhaust pipe 20 is limited by the elastic piece 330, so as to avoid the contact or collision between the auxiliary frame 10 and the exhaust pipe 20, thereby avoiding the noise and vibration caused by the collision.
[0030] Referring to Figure 5 and Figure 6 , the limiting piece 310 comprises a limiting disc 3110 and a limiting shaft 3120 arranged coaxially, the limiting disc 3110 is connected with the end of the limiting shaft 3120, and the limiting seat 320 is provided with a mounting hole 32110 for the limiting shaft 3120 to pass through, wherein the elastic piece 330 is sleeved on the limiting shaft 3120, and the elastic piece 330 is elastically supported between the limiting disc 3110 and the limiting seat 320.
[0031] Specifically, the limiting shaft 3120 in the limiting member 310 is inserted into the mounting hole 32110 of the limiting seat 320, the distance between the limiting disc 3110 of the limiting member 310 and the limiting seat 320 is used to limit the length range of the stretching and compression of the elastic member 330, the limiting shaft 3120 makes the elastic member 330 stretch or compress along the first direction X, which is used to limit the direction of the stretching or compression of the elastic member 330, by limiting the stretching or compression of the elastic member 330 along the axial direction, and limiting the length change range of the elastic member 330, so as to reduce the irregular vibration and impact between the auxiliary frame 10 and the exhaust pipe 20, and improve the overall stability and smoothness.
[0032] In another embodiment, the limiting member 310 can also be provided with only the limiting disc 3110, and the elastic member 330 is connected to the limiting disc 3110 and the limiting seat 320 at both ends, so as to reduce the vibration and impact between the auxiliary frame 10 and the exhaust pipe 20.
[0033] In combination with Figure 4 , Figure 5 and Figure 6 , the limiting member 310 further comprises a limiting ball 3130, which is arranged on the side of the limiting disc 3110 away from the limiting shaft 3120 and connected with the limiting disc 3110, and the auxiliary frame mechanism 1 further comprises a limiting tray 340, which is connected with the exhaust pipe 20 and provided with a limiting groove 3410 for receiving the limiting ball 3130, the shape of the limiting groove 3410 matches that of the limiting ball 3130, so that the limiting ball 3130 can rotate in the limiting groove 3410.
[0034] Specifically, the limiting tray 340 is provided with the limiting groove 3410, and the limiting ball 3130 of the limiting member 310 can be put into the limiting groove 3410 of the limiting tray 340. In this embodiment, the limiting member 310 is not directly connected with the exhaust pipe 20, but is movably connected with the limiting tray 340 located on the exhaust pipe 20. When the limiting ball 3130 is subjected to the elastic force of the elastic member 330, the elastic force pushes the limiting ball 3130 into the limiting tray 340, and the contact area between the limiting tray 340 and the limiting ball 3130 is small, so as to reduce the noise generated by the impact during the contact.
[0035] In an embodiment, the limiting groove 3410 of the limiting tray 340 is a concave spherical surface, so that the limiting groove 3410 cooperates with the limiting ball 3130 to form a spherical surface motion radius, which is used to transmit forces and torques in all directions.
[0036] Referring to Figure 7The outer edge surface of the limiting tray 340 is provided with a guide surface 341, so that the limiting ball 3130 is installed along the guide surface 341. Specifically, the guide surface 341 of the limiting tray 340 is a tapered surface, so that the limiting ball 3130 of the limiting member 310 is installed into the limiting tray 340 along the guide surface 341, facilitating the installation of the limiting member 310 and the limiting tray 340.
[0037] In combination Figure 3 And Figure 4 The exhaust pipe 20 is provided with a limiting tray mounting hole 210 for mounting the limiting tray 340.
[0038] Specifically, the limiting tray 340 is placed in the limiting tray mounting hole 210, so as to determine the connection position of the limiting tray 340 on the exhaust pipe 20, and then the limiting tray 340 is welded on the exhaust pipe 20 by arc welding, gas welding, spot welding, laser welding and the like, so as to install the limiting tray 340 on the exhaust pipe 20.
[0039] Further, in an embodiment, the material of the welding material between the limiting tray 340 and the exhaust pipe 20 includes at least one of aluminum, copper and nickel, and the welding material can be only aluminum, only nickel, or a mixture of aluminum and copper. It should be noted that the material of the welding material is not limited in the present application.
[0040] Referring to Figure 6 The limiting seat 320 includes a connecting shaft 3210 and a connecting disc 3220. One end of the connecting shaft 3210 is connected with the auxiliary frame 10, and the other end is provided with a mounting hole 32110 for the limiting shaft 3120 to pass through. The connecting disc 3220 is connected with the other end of the connecting shaft 3210, and the connecting disc 3220 includes a connecting ring 32210 coaxially arranged with the connecting shaft 3210 and an inner side wall 32211 of the connecting ring 32210 connected with the annular side wall 32220 of the connecting shaft 3210.
[0041] Specifically, one end of the connecting shaft 3210 is connected with the auxiliary frame 10, which can be connected by arc welding, gas welding, spot welding, laser welding and the like. The limiting shaft 3120 of the limiting member 310 passes through the mounting hole 32110 of the other end of the connecting shaft 3210, and the elastic member 330 is limited between the limiting disc 3110 of the limiting member 310 and the connecting shaft 3210 of the limiting seat 320. The annular side wall 32220 of the connecting disc 3220 can wrap the elastic member 330, so that it is located in the annular side wall 32220, and the connecting ring 32210 of the connecting disc 3220 facilitates installation.
[0042] Referring to Figure 4In an embodiment, the elastic member 330 comprises a spring (not shown in the figure) which is sleeved on the limiting shaft 3120. Specifically, one end of the spring contacts the limiting disc 3110 and the other end contacts the limiting seat 320, and the spring is located between the limiting disc 3110 and the limiting seat 320. Due to the elastic property of the spring, the spring can deform, for example, stretch or compress, under the action of an external force, and can restore to its original state after the external force is removed, thereby reducing the vibration between the auxiliary frame 10 and the exhaust pipe 20. In addition, when the spring is compressed to the limit, it cannot be compressed further, and there is still a gap between the exhaust pipe 20 and the auxiliary frame 10 to avoid collision between the exhaust pipe 20 and the auxiliary frame 10.
[0043] In an embodiment, when the spring is compressed to the limit, the gap between the exhaust pipe 20 and the auxiliary frame 10 is in the range of 4-5 mm, for example, the gap between the exhaust pipe 20 and the auxiliary frame 10 can be 4.1 mm, 4.2 mm, 4.3 mm, 4.4 mm, 4.6 mm or 4.9 mm, and the present application does not limit the value of the gap between the exhaust pipe 20 and the auxiliary frame 10.
[0044] In another embodiment, the elastic member 330 can also be an elastic rubber column which is sleeved on the limiting shaft 3120 for limiting the distance between the exhaust pipe 20 and the auxiliary frame 10 and buffering the vibration between the exhaust pipe 20 and the auxiliary frame 10.
[0045] Continuing to refer to Figure 1 The auxiliary frame mechanism 1 further comprises a connecting member 40, the first support 110 is arranged on the auxiliary frame 10, the second support 220 is arranged on the exhaust pipe 20, and the connecting member 40 is sleeved on the first support 110 and the second support 220.
[0046] Specifically, the first support 110 on the auxiliary frame 10 and the second support 220 on the exhaust pipe 20 are connected by the connecting member 40, which improves the stability of the connection between the auxiliary frame 10 and the exhaust pipe 20 and improves the connection strength of the auxiliary frame 10 and the exhaust pipe 20.
[0047] Referring to Figure 8 In an embodiment, the connecting member 40 comprises a lug 410 which is sleeved on the first support 110 and the second support 220, and the lug 410 is used to fix the exhaust pipe 20 on the auxiliary frame 10 to prevent displacement of the exhaust pipe 20 due to vibration or impact force during driving. The lug 410 is provided with two openings 4110, and the first support 110 and the second support 220 pass through the openings 4110 respectively for connecting the exhaust pipe 20 and the auxiliary frame 10.
[0048] Further, in an embodiment, the lug 410 is provided with a buffer through hole 4120, which improves the vibration isolation effect of the first support 110 and the second support 220 and reduces the transmission of vibration.
[0049] In another embodiment, the first support 110 and the second support 220 can be directly connected without the lug 410, for example, by welding, bonding or other methods.
[0050] In an embodiment, the material of the connecting piece 40 includes rubber. First, the high elasticity of rubber can effectively absorb impact and vibration energy, and using rubber for the connecting piece 40 can reduce the vibration between the subframe 10 and the exhaust pipe 20. Second, the rubber surface has large friction, which facilitates the reduction of mutual sliding between the first support 110 and the second support 220, thereby reducing the vibration between the subframe 10 and the exhaust pipe 20. In addition, the density of rubber is lower than that of metal, which can reduce the overall weight of the subframe mechanism 1.
[0051] In another embodiment, the material of the connecting piece 40 can also be at least one of silica gel, metal or carbon fiber, for example, the material of the connecting piece 40 can be only silica gel, or only metal, or a mixture of metal and silica gel.
[0052] The application also protects a vehicle including the subframe mechanism 1 according to any one of the above. The vehicle includes a fuel vehicle, an electric vehicle, a hybrid vehicle, and a hydrogen fuel cell vehicle, and of course includes a sedan, a sport utility vehicle, a multi-purpose commercial vehicle, etc. It should be noted that the type of vehicle is not limited. The specific structure of the subframe mechanism 1 is as described above and will not be repeated here.
[0053] The above is only an embodiment of the application, and does not limit the patent scope of the application. Any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the application.
Claims
1. A subframe mechanism characterized by comprising: The application relates to a subframe mechanism. The subframe mechanism comprises a subframe, an exhaust pipe, a limiting assembly, a limiting member, a limiting seat, an elastic member, a limiting disc, a limiting shaft, a limiting ball, a limiting tray, a connecting shaft, a connecting disc, a connecting member, and a rubber material. The subframe mechanism comprises a subframe, an exhaust pipe, a limiting assembly, a limiting member, a limiting seat, an elastic member, a limiting disc, a limiting shaft, a limiting ball, a limiting tray, a connecting shaft, a connecting disc, a connecting member, and a rubber material. The limiting member comprises a limiting disc and a limiting shaft.
2. The subframe mechanism according to claim 1, characterized by The limiting disc is connected with the limiting shaft. The limiting seat is provided with a mounting hole for the limiting shaft.
3. The subframe mechanism of claim 2, wherein The elastic member is sleeved on the limiting shaft. The limiting disc is connected with the limiting ball. The limiting tray is connected with the exhaust pipe.
4. The subframe mechanism of claim 3, wherein The limiting tray is provided with a limiting groove for receiving the limiting ball.
5. The subframe mechanism of claim 3, wherein The limiting groove is matched with the limiting ball in shape.
6. The subframe mechanism of claim 2, wherein The limiting ball can rotate in the limiting groove. The limiting tray is provided with a guide surface. The limiting ball is installed along the guide surface.
7. The subframe mechanism of claim 2, wherein The exhaust pipe is provided with a limiting tray mounting hole for mounting the limiting tray.
8. The subframe mechanism of claim 1, wherein The connecting shaft is connected with the subframe.
9. The subframe mechanism of claim 8, wherein The other end of the connecting shaft is provided with the mounting hole for the limiting shaft.
10. A vehicle characterized by comprising: The connecting disc is connected with the other end of the connecting shaft. The connecting disc comprises a connecting ring coaxial with the connecting shaft and an inner side wall connected with the connecting ring. The elastic member comprises a spring. The spring is sleeved on the limiting shaft. The subframe mechanism further comprises a connecting member. The subframe is provided with a first support. The exhaust pipe is provided with a second support. The connecting member is sleeved on the first support and the second support. The material of the connecting member comprises rubber. The subframe mechanism comprises the subframe mechanism according to any one of claims 1 to 9. The subframe mechanism comprises the subframe mechanism according to any one of claims 1 to 9.