Suspension support, power assembly and vehicle

Abstract

The invention discloses a suspension support, a power assembly and a vehicle, and belongs to the technical field of vehicles, the suspension support comprises a support arm, an outer shell, a vibration isolation piece and a buffer limiting piece, the support arm is suitable for being connected with an engine, the outer shell is suitable for being connected with a vehicle body, at least part of the vibration isolation piece is arranged in the outer shell, the support arm is connected with the outer shell through the vibration isolation piece, and the buffer limiting piece is arranged in the outer shell. The buffer limiting piece is detachably installed on the outer shell, and at least part of the buffer limiting piece is located between the outer shell and the supporting arm. According to the suspension support, the buffer limiting piece is detachably installed on the outer shell, the buffer limiting piece with the corresponding rigidity can be selected according to the using working condition of the suspension support so that the suspension support can be adjusted conveniently, the development period of the suspension support can be shortened, and in addition, when the buffer limiting piece is damaged or abraded, the buffer limiting piece can not be damaged or abraded. In addition, the buffer limiting piece can be detached from the outer shell and replaced, the whole suspension support does not need to be replaced, and therefore the maintenance cost of the suspension support can be reduced.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and more specifically, to a suspension bracket, a powertrain, and a vehicle. Background Technology

[0002] Currently, the automotive industry is developing rapidly. While the requirements for vehicle NVH (noise, vibration, and harshness) are gradually increasing, product iteration is accelerating, development cycles are shortening, and maintainability requirements are gradually increasing.

[0003] As an important vibration isolation system for vehicles, the design requirements for vehicle mounts are gradually increasing. Conventional vehicle mounts have long development cycles and poor maintainability. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the aforementioned technical problems in the prior art. To this end, the present invention proposes a suspension bracket that can shorten the development cycle of the suspension bracket and reduce its maintenance costs.

[0005] The present invention also proposes a powertrain having the above-described suspension bracket.

[0006] The present invention also proposes a vehicle having the above-described powertrain.

[0007] According to an embodiment of the present invention, a suspension bracket includes: a support arm adapted to be connected to an engine; a housing adapted to be connected to a vehicle body; a vibration damper, at least a portion of which is disposed within the housing, and the support arm is connected to the housing via the vibration damper; and a buffer limiting member detachably mounted to the housing, with at least a portion of which is located between the housing and the support arm.

[0008] According to the embodiments of the present invention, the buffer limiting member is detachably installed on the housing. The buffer limiting member with the corresponding stiffness can be selected according to the operating conditions of the suspension bracket, so as to facilitate the adjustment of the suspension bracket and shorten the development cycle of the suspension bracket. In addition, when the buffer limiting member is damaged or worn, the buffer limiting member can be removed from the housing and replaced without replacing the entire suspension bracket, thereby helping to reduce the maintenance cost of the suspension bracket.

[0009] According to some embodiments of the present invention, the outer casing has a mounting groove, and the buffer limiting member is snapped into the mounting groove.

[0010] According to some embodiments of the present invention, the bottom wall of the mounting groove is provided with a plurality of limiting holes; the buffer limiting member includes: a buffer pad and a plurality of snap-fit ​​posts connected thereto, the plurality of snap-fit ​​posts corresponding one-to-one with the plurality of limiting holes, and each snap-fit ​​post being snap-fit ​​connected to the corresponding limiting hole.

[0011] According to some embodiments of the present invention, the snap-fit ​​post includes: a tube body and a tapered snap-fit ​​part, the tapered snap-fit ​​part being connected to the buffer pad through the tube body, the tapered snap-fit ​​part engaging with the limiting hole, the tube body being a hollow structure, and the buffer pad having an assembly hole communicating with the tube body.

[0012] According to some embodiments of the present invention, the buffer pad has a clearance groove on the side facing the support arm, and the mounting hole is located at the bottom of the clearance groove.

[0013] According to some embodiments of the present invention, the buffer limiting member further includes: a limiting rib, the limiting rib being connected to the buffer pad, and the bottom wall of the mounting groove being provided with a limiting groove that cooperates with the limiting rib.

[0014] According to some embodiments of the present invention, the limiting rib is located between the two snap-fit ​​posts.

[0015] According to some embodiments of the present invention, the buffer pad has a plurality of spaced buffer protrusions on the side facing the support arm.

[0016] According to another embodiment of the present invention, the powertrain includes the above-described suspension bracket.

[0017] A vehicle according to another embodiment of the present invention includes the powertrain described above.

[0018] The powertrain and vehicle described above have the same advantages over the prior art as the aforementioned suspension bracket, and will not be repeated here.

[0019] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] Figure 1 This is an exploded view of the suspension bracket according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the outer casing according to an embodiment of the present invention; Figure 3 This is a schematic diagram of a buffer limiting member according to an embodiment of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of a buffer limiting member according to an embodiment of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the powertrain and subframe according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the rear suspension according to an embodiment of the present invention.

[0021] Figure label: Outrigger 1; 2. Outer shell; 21. Mounting groove; 22. Limiting hole; 23. Limiting groove; Vibration isolation component 3; main spring 31; inner frame 32; flow channel cover plate 33; decoupling membrane 34; steel ball 35; nylon frame 36; flow channel plate 37; lower shell 38; leather cup 39; Buffer limiting component 4; buffer pad 41; mounting hole 411; clearance groove 412; snap-fit ​​post 42; tube body 421; conical snap-fit ​​part 422; limiting rib 43; buffer protrusion 44; Suspension bracket 10; Left suspension bracket 10a; Right suspension bracket 10b; Rear suspension 20; upper bushing 201; lower bushing 202; tie rod 203; bracket assembly 204; Engine 30; Subframe 40. Detailed Implementation

[0022] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0023] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0026] The following describes in detail, with reference to the accompanying drawings, the suspension bracket 10, the powertrain, and the vehicle according to embodiments of the present invention.

[0027] Reference Figures 1-5 As shown, the suspension bracket 10 according to a first aspect embodiment of the present invention includes: a support arm 1, a housing 2, a vibration isolator 3, and a buffer limiting member 4. The support arm 1 is adapted to be connected to an engine 30, the housing 2 is adapted to be connected to a vehicle body, at least a portion of the vibration isolator 3 is disposed within the housing 2, the support arm 1 is connected to the housing 2 via the vibration isolator 3, and the buffer limiting member 4 is detachably installed on the housing 2, and at least a portion of the buffer limiting member 4 is located between the housing 2 and the support arm 1.

[0028] Specifically, the engine 30 can be connected to the vehicle body via the suspension bracket 10. The suspension bracket 10 can support and fix the engine 30 and reduce the transmission of vibration between the engine 30 and the vehicle body, thereby improving the NVH quality of the vehicle.

[0029] In the suspension bracket 10, the support arm 1 can be connected to the engine 30 via fasteners, and the housing 2 can be connected to the vehicle body via fasteners. The vibration damper 3 is connected to the support arm 1 and the housing 2 respectively. The vibration damper 3 can reduce the transmission of vibration between the support arm 1 and the housing 2. The buffer limiter 4 is detachably installed on the housing 2, and at least part of the buffer limiter 4 is located between the housing 2 and the support arm 1. When the vehicle is turning or in other working conditions, the engine 30 is subjected to Y-direction (left and right direction) force. At this time, the vibration damper 3 deforms, and the housing 2 and the support arm 1 will collide. The buffer limiter 4 can block the direct collision between the housing 2 and the support arm 1 to buffer the collision impact between the two, improve the overall NVH quality of the vehicle, and reduce the transmission of engine 30 vibration to the vehicle interior.

[0030] According to the embodiment of the present invention, the buffer limiting member 4 of the suspension bracket 10 is detachably installed on the housing 2. The buffer limiting member 4 with the corresponding stiffness can be selected according to the operating conditions of the suspension bracket 10, so as to facilitate the adjustment of the suspension bracket 10 and shorten the development cycle of the suspension bracket 10. In addition, when the buffer limiting member 4 is damaged or worn, the buffer limiting member 4 can be removed from the housing 2 and replaced without replacing the entire suspension bracket 10, thereby helping to reduce the maintenance cost of the suspension bracket 10.

[0031] In some embodiments of the present invention, reference is made to... Figures 1-3 As shown, the outer shell 2 has a mounting groove 21, and the buffer limiting member 4 is snapped into the mounting groove 21.

[0032] Specifically, the outer shell 2 may have a mounting groove 21 on the side facing the support arm 1. A part of the buffer limiting member 4 may be located in the mounting groove 21 and snapped into the mounting groove 21. The mounting groove 21 can increase the contact area between the buffer limiting member 4 and the outer shell 2 and limit the buffer limiting member 4 to improve the stability of the connection between the buffer limiting member 4 and the outer shell 2.

[0033] In other embodiments of the invention (not shown in the figures), the buffer limiter 4 can also be detachably connected to the housing 2 via fasteners.

[0034] In some embodiments of the present invention, reference is made to... Figure 2 and Figure 3 As shown, the bottom wall of the mounting groove 21 is provided with multiple limiting holes 22. The buffer limiting component 4 includes a buffer pad 41 and multiple snap-fit ​​posts 42 connected thereto. The multiple snap-fit ​​posts 42 correspond one-to-one with the multiple limiting holes 22, and each snap-fit ​​post 42 is snapped into connection with the corresponding limiting hole 22.

[0035] Specifically, the buffer pad 41 and multiple snap-fit ​​posts 42 can be integrally formed. The buffer pad 41 can prevent direct collision between the outer shell 2 and the support arm 1. The buffer pad 41 can be snapped and connected to multiple limiting holes 22 through multiple snap-fit ​​posts 42. The connection between multiple snap-fit ​​posts 42 and multiple limiting holes 22 can improve the stability and reliability of the connection between the buffer limiting member 4 and the outer shell 2.

[0036] In some embodiments of the present invention, reference is made to... Figures 2-4 As shown, the snap-fit ​​post 42 includes a tube body 421 and a conical snap-fit ​​part 422. The conical snap-fit ​​part 422 is connected to the buffer pad 41 through the tube body 421. The conical snap-fit ​​part 422 engages with the limiting hole 22. The tube body 421 is a hollow structure. The buffer pad 41 has an assembly hole 411 that communicates with the tube body 421.

[0037] Specifically, the tapered snap-fit ​​part 422 can form a mushroom head structure. The tapered outer surface of the tapered snap-fit ​​part 422 can provide guidance when it is inserted into the limiting hole 22, and after being inserted into the limiting hole 22, it forms a snap-fit ​​with the inner wall of the limiting hole 22 through an interference fit. The tapered snap-fit ​​part 422 is connected to the buffer pad 41 through the tube body part 421. The tube body part 421 can be a hollow cylindrical tube structure. The buffer pad 41 has an assembly hole 411, which is connected to the tube body part 421.

[0038] When assembling the buffer limiter 4 with the outer shell 2, a hard rod-shaped tool can be used to assist in the assembly. The rod-shaped tool can be inserted into the tube part 421 through the assembly hole 411 to support the conical snap-fit ​​part 422, so that the conical snap-fit ​​part 422 can be inserted into a deeper position of the limit hole 22. Even when the material of the buffer limiter 4 is relatively soft, the conical snap-fit ​​part 422 can still be assembled in place, reducing the assembly difficulty of the buffer limiter 4.

[0039] In some embodiments of the present invention, reference is made to... Figure 1 and Figure 4 As shown, the buffer pad 41 has a relief groove 412 on the side facing the support arm 1. The mounting hole 411 is located at the bottom of the relief groove 412. The relief groove 412 can prevent the mounting hole 411 from direct impact from the support arm 1, avoid stress concentration at the mounting hole 411, and reduce the risk of damage at the connection between the tube body 421 and the buffer pad 41. Optionally, the relief groove 412 can be a through groove extending to the edge of the buffer pad 41 to facilitate demolding of the buffer limiting member 4 during manufacturing.

[0040] In some embodiments of the present invention, reference is made to... Figure 2 and Figure 3 As shown, the buffer limiting member 4 also includes a limiting rib 43, which is connected to the buffer pad 41. The bottom wall of the mounting groove 21 is also provided with a limiting groove 23 that cooperates with the limiting rib 43. The limiting rib 43 can be inserted into the limiting groove 23 and cooperate with the limiting groove 23. The cooperation between the limiting rib 43 and the limiting groove 23 can further improve the connection strength between the buffer limiting member 4 and the outer shell 2, and reduce the risk of the buffer limiting member 4 moving relative to the outer shell 2 when subjected to lateral force.

[0041] In some embodiments of the present invention, reference is made to... Figure 3 As shown, the limiting rib 43 is located between the two snap-fit ​​posts 42. When the buffer limiting member 4 is subjected to lateral force, the limiting groove 23 can support and limit the limiting rib 43 to reduce the force and deformation of the snap-fit ​​posts 42 on both sides and reduce the risk of the snap-fit ​​posts 42 coming out of the limiting hole 22.

[0042] In some embodiments of the present invention, reference is made to... Figure 4 As shown, the buffer pad 41 has multiple buffer protrusions 44 arranged at intervals on the side facing the support arm 1. The buffer protrusions 44 can be cylindrical protrusions. Multiple buffer protrusions 44 can form an array structure on the surface of the buffer pad 41. When the support arm 1 hits the buffer pad 41, it will first compress the buffer protrusions 44 and then hit the body of the buffer protrusions 44, thereby achieving multi-level buffering. At the same time, the gaps between the multiple buffer protrusions 44 can provide space for the deformation of the buffer protrusions 44 and the buffer pad 41, and help the airflow to be discharged, reducing the abnormal noise generated when the support arm 1 collides with the buffer pad 41.

[0043] Reference Figure 1 As shown, the vibration isolator 3 includes: a main spring 31, an inner frame 32, a flow channel cover plate 33, a decoupling membrane 34, steel balls 35, a nylon frame 36, a flow channel plate 37, a lower housing 38, and a cup 39. The main spring 31 is connected to the inner frame 32 and the nylon frame 36 by vulcanization. The flow channel cover plate 33, the decoupling membrane 34, the flow channel plate 37, and the cup 39 are assembled with the main spring 31 by the snap-fit ​​structure of the lower housing 38 and the boss of the nylon frame 36. The steel balls 35 are installed inside the flow channel plate 37. The outer housing 2 is press-fitted to the nylon frame 36 by an interference fit. The support arm 1 is press-fitted to the inner frame 32 by an interference fit.

[0044] According to the embodiment of the present invention, the suspension bracket 10 has a buffer limiting member 4 made of integrally molded rubber material, which meets the durability requirements. For example, under the test conditions of ambient temperature of 87°C to 93°C, Z-direction (vehicle height direction) load: -1g, Y-direction (the direction in which the buffer limiting member 422 is pressed in the vehicle width) load: 2000N, X-direction (vehicle length direction) load: -1300N to 1300N, frequency of 5Hz, single cycle number of 3000, and cycle number of 10, the buffer limiting member 4 has no abnormal noise, no falling off, residual thickness after wear is greater than 3mm, and crack depth at cracked parts is less than 3mm.

[0045] According to a second aspect of the present invention, the powertrain includes the suspension bracket 10 of the above embodiment.

[0046] Reference Figure 5 and Figure 6 As shown, the powertrain may include an engine 30, two suspension brackets 10, and a rear suspension 20. The two suspension brackets 10 are a left suspension bracket 10a and a right suspension bracket 10b, which are symmetrically arranged on the left and right sides of the engine 30. The rear suspension 20 connects the engine 30 to the vehicle body at the rear of the engine 30. The rear suspension 20 includes an upper bushing 201, a lower bushing 202, a tie rod 203, and a bracket assembly 204. The upper bushing 201 and the lower bushing 202 can be press-fitted into the subframe 40 of the vehicle body. The upper bushing 201 and the lower bushing 202 are connected to the tie rod 203 by bolts. One end of the bracket assembly 204 is connected to the tie rod 203, and the other end of the bracket assembly 204 is connected to the engine 30. The rear suspension 20 can achieve the limiting and vibration isolation functions through the combined action of the upper bushing 201 and the lower bushing 202. A connecting bushing is provided between the bracket assembly 204 and the tie rod 203 to provide better NVH performance.

[0047] According to the powertrain of the present invention, the buffer limiting member 4 of the suspension bracket 10 is detachably installed on the housing 2. The buffer limiting member 4 with corresponding stiffness can be selected according to the operating conditions of the suspension bracket 10, so as to facilitate the adjustment of the suspension bracket 10 and shorten the development cycle of the suspension bracket 10. In addition, when the buffer limiting member 4 is damaged or worn, the buffer limiting member 4 can be removed from the housing 2 and replaced without replacing the entire suspension bracket 10, thereby helping to reduce the maintenance cost of the powertrain.

[0048] A vehicle according to a third aspect of the present invention includes the powertrain described above.

[0049] According to an embodiment of the present invention, the buffer limiting member 4 of the suspension bracket 10 is detachably installed on the housing 2. The buffer limiting member 4 with corresponding stiffness can be selected according to the operating conditions of the suspension bracket 10, so as to facilitate the adjustment of the suspension bracket 10 and shorten the development cycle of the suspension bracket 10. In addition, when the buffer limiting member 4 is damaged or worn, the buffer limiting member 4 can be removed from the housing 2 and replaced without replacing the entire suspension bracket 10, thereby helping to reduce the maintenance cost of the vehicle.

[0050] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0051] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A suspension bracket, characterized in that, include: Support arm (1), said support arm (1) being adapted to be connected to engine (30); The outer casing (2) is adapted to be connected to the vehicle body; Vibration isolation member (3), at least a portion of which is disposed inside the outer shell (2), and the support arm (1) is connected to the outer shell (2) through the vibration isolation member (3); A buffer stop (4) is detachably mounted on the housing (2), and at least a portion of the buffer stop (4) is located between the housing (2) and the support arm (1).

2. The suspension bracket according to claim 1, characterized in that, The outer shell (2) has a mounting groove (21), and the buffer limiting member (4) is snapped into the mounting groove (21).

3. The suspension bracket according to claim 2, characterized in that, The bottom wall of the mounting groove (21) is provided with multiple limiting holes (22); The buffer limiting member (4) includes a buffer pad (41) and a plurality of snap-fit ​​posts (42) connected thereto. The plurality of snap-fit ​​posts (42) correspond one-to-one with the plurality of limiting holes (22), and each snap-fit ​​post (42) is snapped into connection with the corresponding limiting hole (22).

4. The suspension bracket according to claim 3, characterized in that, The snap-fit ​​post (42) includes a tube body (421) and a tapered snap-fit ​​part (422). The tapered snap-fit ​​part (422) is connected to the buffer pad (41) through the tube body (421). The tapered snap-fit ​​part (422) engages with the limiting hole (22). The tube body (421) is a hollow structure. The buffer pad (41) has an assembly hole (411) that communicates with the tube body (421).

5. The suspension bracket according to claim 4, characterized in that, The buffer pad (41) has a relief groove (412) on the side facing the support arm (1), and the mounting hole (411) is located at the bottom of the relief groove (412).

6. The suspension bracket according to claim 3, characterized in that, The buffer limiting member (4) further includes a limiting rib (43), which is connected to the buffer pad (41), and the bottom wall of the mounting groove (21) is also provided with a limiting groove (23) that cooperates with the limiting rib (43) for limiting.

7. The suspension bracket according to claim 6, characterized in that, The limiting rib (43) is located between the two snap-fit ​​posts (42).

8. The suspension bracket according to any one of claims 3-7, characterized in that, The buffer pad (41) has a plurality of spaced buffer bumps (44) on the side facing the support arm (1).

9. A powertrain, characterized in that, Includes the suspension bracket according to any one of claims 1-8.

10. A vehicle, characterized in that, Including the powertrain according to claim 9.

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