Middle tower structure and vehicle

Abstract

The utility model belongs to the field of vehicle technical equipment, and particularly relates to a middle tower structure and a vehicle. The middle tower structure comprises a first structural part, a second structural part and a third structural part, the first structural part is connected with the vehicle body longitudinal beam, the second structural part is connected with the auxiliary frame, a limiting groove is formed in the second structural part, and the third structural part penetrates through the limiting groove and is connected with the first structural part and the second structural part. The limiting groove is provided with an avoiding notch located in the groove width direction of the limiting groove, and the third structural part can slide out of the limiting groove through the avoiding notch under the action of external force so as to release connection between the first structural part and the second structural part. According to the utility model, road noise can be effectively reduced and the NVH performance of a vehicle can be improved; and when collision occurs, the middle tower structure can decouple the vehicle body longitudinal beam and the auxiliary frame in time, so that the safety is improved.

Description

Technical Field

[0001] The utility model belongs to the field of vehicle technical equipment, and particularly relates to a middle tower structure and a vehicle. Background Art

[0002] At present, with the rapid popularization of automobiles, consumers not only satisfy the driving function and safety of automobiles, but also pay more attention to the NVH (Noise, Vibration, Harshness) performance of automobiles, and regard the NVH performance as a key measurement factor when purchasing automobiles. During the driving process of an automobile, road noise is one of the main noise sources of in-vehicle noise, which directly affects the driving experience of in-vehicle personnel. Especially for new energy vehicle models, without the coverage of engine noise, the contribution of road noise to in-vehicle noise will be further increased compared with traditional vehicle models.

[0003] In order to reduce the tire-road noise of NVH, generally, a connecting member is added between the subframe and the vehicle body longitudinal beam. However, when the vehicle undergoes a frontal collision and a high-speed collision, the subframe and the vehicle body structure are fixed by the connecting member and cannot be decoupled in time. At the same time, the vehicle body longitudinal beam cannot be bent and deformed well, resulting in large intrusion amounts and accelerations to the occupant compartment. Excessive intrusion amounts and accelerations are not conducive to protecting the occupants in the occupant compartment. At the same time, due to the impact of the subframe along the direction of vehicle movement, the battery pack located on the vehicle chassis will be damaged. In this way, it is also not conducive to the protection of the battery pack, and the damage of the battery pack may lead to the occurrence of safety accidents. Summary of the Utility Model

[0004] The purpose of the embodiment of the present application is to provide a middle tower structure, aiming to solve the problem of how to improve the safety of a vehicle and reduce road noise.

[0005] To achieve the above purpose, the technical solution adopted by the present application is as follows:

[0006] In a first aspect, a middle tower structure is provided for detachably connecting a vehicle body longitudinal beam and a subframe. The middle tower structure includes: a first structural member, a second structural member, and a third structural member. The first structural member is connected to the vehicle body longitudinal beam, the second structural member is connected to the subframe, a limiting groove is formed in the second structural member, the third structural member passes through the limiting groove and connects the first structural member and the second structural member; the limiting groove has an avoidance notch in the direction of its groove width, and the third structural member can slide out of the limiting groove through the avoidance notch under the action of an external force to release the connection between the first structural member and the second structural member.

[0007] In some embodiments, the second structural member has a first surface and a second surface respectively located on both sides of the avoidance slot, and along the depth direction of the limiting slot, the height of the first surface is greater than the height of the second surface, and the third structural member slides out of the limiting slot at the second surface.

[0008] In some embodiments, the second surface is a convex arc surface to guide the third structure to slide out of the limiting groove, and / or the first surface is a plane.

[0009] In some embodiments, the second structural member includes a structural body and a limiting plate having the limiting groove, the structural body having a first end connected to the first structural member and a second end arranged opposite to the first end and connected to the sub-frame, the limiting plate is connected to the first end, the first surface and the second surface are both located on the same side panel surface of the limiting plate, the first structural member has a positioning groove corresponding to the position of the limiting plate, and the limiting plate is clamped in the positioning groove.

[0010] In some embodiments, both intersecting side surfaces of the limiting plate are connected to the first end, and the first surface extends and intersects with the first end.

[0011] In some embodiments, the first structural member is provided with a first connecting hole penetrating the positioning groove, and two ends of the third structural member are respectively inserted into the first connecting hole and the limiting groove.

[0012] In some embodiments, the first end is further provided with a second connection hole, and / or the second end is provided with a third connection hole for connecting with the sub-frame.

[0013] In some embodiments, the positioning groove is formed at one end of the first structure, and the other end of the first structural member extends in a direction away from the first end and is connected to the vehicle body longitudinal beam.

[0014] In some embodiments, a surface of the first structural member facing away from the positioning groove is provided with an avoidance zone.

[0015] In a second aspect, a vehicle is provided, which includes the mid-tower structure, and the vehicle also includes the vehicle body longitudinal beam and the subframe.

[0016] The beneficial effects of the present application are as follows: The middle tower structure detachably connects the first structural member and the second structural member through the third structural member, which can improve the overall connection strength and connection stiffness of the vehicle longitudinal beam and the subframe, effectively reduce road noise and improve the NVH performance of the vehicle; in the event of a collision, the middle tower structure can decouple the vehicle longitudinal beam and the subframe in a timely manner. By allowing the subframe to fall off, the front EDS motor of the powertrain connected to the subframe also sinks together, which can reduce the intrusion of the front-end structure into the battery pack and the occupant compartment, avoid damage to the battery pack, strengthen the protection of the battery pack, prevent new energy vehicles from catching fire and causing safety accidents of vehicle destruction and human death, and improve safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or exemplary technical descriptions. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 is a three-dimensional structural schematic diagram of the middle tower structure provided by an embodiment of the present application;

[0019] Figure 2 is a three-dimensional structural schematic diagram of the middle tower structure provided by another embodiment of the present application;

[0020] Figure 3 is Figure 1 an exploded schematic diagram of the middle tower structure of.

[0021] Among them, the reference numerals in the drawings are as follows:

[0022] 100, middle tower structure;

[0023] 200, subframe;

[0024] 11, first structural member;

[0025] 111, avoidance section; 112, positioning groove; 113, first connection hole; 114, fourth connection hole;

[0026] 12, second structural member;

[0027] 121, limiting plate; 122, structural body;

[0028] 1211, first surface; 1212, second surface; 1213, limiting groove;

[0029] 1221, first end; 1222, second end; 1223, second connection hole; 1224, third connection hole;

[0030] 13. The third structural member. Detailed implementation manners

[0031] In order to make the objectives, technical solutions and advantages of the present application clearer and more understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0032] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly or indirectly connected to the other component. The orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present application. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances. The terms "first" and "second" are only used for the purpose of convenient description, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of technical features. The meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0033] Please refer to Figures 1 to 3 , the embodiment of the present application provides a middle tower structure 100 and a vehicle having the same. The vehicle further includes a vehicle body longitudinal beam and a subframe 200. The middle tower structure 100 is used to detachably connect the vehicle body longitudinal beam and the subframe 200. In the actual use process, the vehicle body longitudinal beam can be located above the subframe 200 in the vertical direction, and the middle tower structure 100 is located between the vehicle body longitudinal beam and the subframe 200.

[0034] The middle tower structure 100 includes: a first structural member 11, a second structural member 12, and a third structural member 13. It can be understood that, in order to improve strength and structural stiffness, the materials of the first structural member 11, the second structural member 12, and the third structural member 13 can be metals, such as metallic iron or alloy steel. There is no limitation here, and it can be selected according to actual situations.

[0035] Please refer to Figures 1 to 3, the first structural member 11 is connected to the vehicle longitudinal beam, the second structural member 12 is connected to the subframe 200, the second structural member 12 is provided with a limiting groove 1213, the third structural member 13 passes through the limiting groove 1213 and is connected to the first structural member 11 and the second structural member 12; the limiting groove 1213 has an avoidance notch in the direction of its groove width, and the third structural member 13 can slide out of the limiting groove 1213 through the avoidance notch under the action of an external force to release the connection between the first structural member 11 and the second structural member 12. It can be understood that the cross-sectional shape of the limiting groove 1213 in the vertical direction is U-shaped, one end of the third structural member 13 is accommodated in the limiting groove 1213 to connect the second structural member 12, and the other end of the third structural member 13 extends out of the limiting groove 1213 and is connected to the first structural member 11.

[0036] During normal driving of the vehicle, the inner wall of the limiting groove 1213 can provide support for the third structural member 13, so as to maintain the connection strength between the first structural member 11 and the second structural member 12 and the overall stiffness, and further ensure the connection strength between the vehicle longitudinal beam and the subframe 200 and the overall connection stiffness, which is beneficial to reducing road noise and improving NVH performance.

[0037] Please refer to Figures 1 to 3 , when a vehicle undergoes a frontal collision, the impact force will squeeze the vehicle longitudinal beam. Since the limiting groove 1213 has an avoidance notch, when the vehicle longitudinal beam is squeezed, it will drive the third structural member 13 to move upward in the vertical direction until the third structural member 13 slides out of the limiting groove 1213 through the avoidance notch. At this time, the subframe 200 is decoupled from the vehicle longitudinal beam, and the subframe 200 and the electrical equipment on the subframe 200 can sink, reducing the extrusion and intrusion into the occupant compartment, increasing the deformation energy absorption space of the occupant compartment, and thus being able to better protect the occupants.

[0038] Please refer to Figures 1 to 3 , the middle tower structure 100 provided by the embodiment of the present application detachably connects the first structural member 11 and the second structural member 12 through the third structural member 13, which can improve the overall connection strength and connection stiffness between the vehicle longitudinal beam and the subframe 200, and can effectively reduce road noise and improve the NVH performance of the vehicle; while in the event of a collision, the middle tower structure 100 can decouple the vehicle longitudinal beam and the subframe 200 in time. By allowing the subframe 200 to fall off, the front EDS motor of the powertrain connected to the subframe 200 also sinks together, which can reduce the intrusion of the front-end structure into the battery pack and the occupant compartment, avoid damage to the battery pack, strengthen the protection of the battery pack, avoid the safety accident of a new energy vehicle catching fire and causing the vehicle to be destroyed and people to die, and improve safety.

[0039] Please refer to Figures 1 to 3, in some embodiments, the second structural member 12 has a first surface 1211 and a second surface 1212 respectively located on both sides of the avoidance notch, and along the depth direction of the limit groove 1213, the height of the first surface 1211 is greater than the height of the second surface 1212, and the third structural member 13 slides out of the limit groove 1213 at the second surface 1212.

[0040] Optionally, by setting the height difference between the first surface 1211 and the second surface 1212, the sliding-out position of the third structural member 13 can be set, enhancing the fixing effect of the third structural member 13 in the limit groove 1213. This height difference ensures the stability of the third structural member 13, prevents the third structural member 13 from slipping out of the limit groove 1213 under unexpected circumstances, and also ensures that the third structural member 13 can slide out of the limit groove 1213 in time during a collision, improving safety.

[0041] In some embodiments, the second surface 1212 is a convex arc surface to guide the third structural member 13 to slide out of the limit groove 1213.

[0042] Please refer to Figures 1 to 3 , optionally, the second surface 1212 provided with a convex arc surface helps to guide the third structural member 13 to smoothly slide out of the limit groove 1213, simplifies the separation process, reduces the external force required when disconnecting the vehicle longitudinal beam and the subframe 200, and enables the vehicle longitudinal beam and the subframe 200 to be decoupled in time during a collision.

[0043] In some embodiments, the first surface 1211 is a flat surface.

[0044] Optionally, during the actual driving process of the vehicle, the first surface 1211 is arranged upward, so as to provide support for the structural member connected to the vehicle longitudinal beam. The flat first surface 1211 provides stable support for it, ensuring that it is not easy to slide or loosen under normal working conditions, and improving the convenience of installing the structural member on the vehicle longitudinal beam.

[0045] Please refer to Figures 1 to 3, in some embodiments, the second structural member 12 includes a structural body 122 and a limiting plate 121 connected to the structural body 122. The structural body 122 has a first end 1221 connected to the first structural member 11 and a second end 1222 disposed opposite to the first end 1221 and connected to the subframe 200. The limiting plate 121 is connected to the first end 1221, the limiting groove 1213 is formed in the limiting plate 121, both the first surface 1211 and the second surface 1212 are located on the same side plate surface of the limiting plate 121, and a positioning groove 112 is formed in the first structural member 11 at a position corresponding to the limiting plate 121. The limiting plate 121 is clamped in the positioning groove 112.

[0046] Please refer to Figures 1 to 3 , optionally, in the vertical direction, both the first surface 1211 and the second surface 1212 are located on the upper surface of the limiting plate 121. During the driving process of the vehicle, the first end 1221 is located above the second end 1222. By providing the limiting plate 121 at the first end 1221 and clamping it in the positioning groove 112 of the first structural member 11, the connection stability between the first structural member 11 and the structural body 122 is enhanced, ensuring the strength and stiffness of the connection between the first structural member 11 and the second structural member 12.

[0047] Optionally, the limiting plate 121 and the structural body 122 are integrally formed. For example, the second structural member 12 is integrally extruded from metal aluminum through an extrusion die; of course, the limiting plate 121 and the structural body 122 can also be connected into one body by a welding process, which is not limited here and can be selected according to actual situations.

[0048] Please refer to Figures 1 to 3 , so that during the driving process of the vehicle, the connections between the structural members are firm, not easily loosened or detached, improving the strength and stiffness of the overall structure of the vehicle, which is beneficial to reducing road noise and improving reliability.

[0049] In some embodiments, both side plate surfaces where the limiting plate 121 intersects are connected to the first end 1221. In the vertical direction, the lower side plate surface of the limiting plate 121 and one side plate surface of the limiting plate 121 are both connected to the first end 1221, and the first surface 1211 extends and intersects with the first end 1221.

[0050] Please refer to Figures 1 to 3 , in some embodiments, the first structural member 11 is provided with a first connection hole 113 penetrating through the positioning groove 112, and both ends of the third structural member 13 are respectively inserted into the first connection hole 113 and the limiting groove 1213.

[0051] Please refer to Figures 1 to 3, optionally, the connecting hole can be a threaded hole. The first connecting hole 113 penetrates through the two side walls of the positioning groove 112. The third structural member 13 can be a bolt, and the third structural member 13 can be in threaded fit with the first connecting hole 113. The settings of the first connecting hole 113 and the limiting groove 1213 provide double fixation, enabling the third structural member 13 to be screwed into the first connecting hole 113 after insertion and firmly connecting the first structural member 11 and the second structural member 12.

[0052] Please refer to Figures 1 to 3 , in some embodiments, a second connecting hole 1223 is further provided at the first end 1221. The second connecting hole 1223 can also be a threaded hole. The second connecting hole 1223 is used for threadedly connecting the front motor. By the threaded fit of the bolt with the second connecting hole 1223, the front motor can be detachably connected to the second structural member 12.

[0053] In some embodiments, a third connecting hole 1224 for connecting the subframe 200 is provided at the second end 1222.

[0054] Please refer to Figures 1 to 3 , optionally, the third connecting hole 1224 can also be a threaded hole. By the threaded fit of the bolt with the third connecting hole 1224, the second structural member 12 can be detachably connected to the subframe 200.

[0055] Please refer to Figures 1 to 3 , in some embodiments, a positioning groove 112 is provided at one end of the first structure, and the other end of the first structural member 11 extends in a direction away from the first end 1221 and is connected to the vehicle longitudinal beam.

[0056] Please refer to Figures 1 to 3 , optionally, the first structural member 11 is located above the limiting groove 1213 in the vertical direction. When a frontal collision occurs to the vehicle, it is convenient for the first structural member 11 to drive the third structural member 13 to slide out of the limiting groove 1213, and at the same time, it is convenient for the second structural member 12 to sink with the subframe 200.

[0057] Optionally, a fourth connecting hole 114 is provided on the first structural member 11. The fourth connecting hole 114 can also be a threaded hole, and through the cooperation of the bolt and the threaded hole, the first structural member 11 can be detachably connected to the vehicle longitudinal beam.

[0058] Please refer to Figures 1 to 3 , in some embodiments, an avoidance section 111 is provided on the surface of the first structural member 11 facing away from the positioning groove 112.

[0059] Please refer to Figures 1 to 3, optionally, by setting the avoidance section 111, it is convenient for the structural member installed on the vehicle longitudinal beam to extend into the avoidance section 111, improving the convenience of installing the structural member on the vehicle longitudinal beam.

[0060] The present utility model also proposes a vehicle, which includes a middle tower structure 100. The specific structure of the middle tower structure 100 refers to the above-mentioned embodiments. Since this vehicle adopts all the technical solutions of the above-mentioned all embodiments, it also has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be elaborated here one by one.

[0061] Please refer to Figures 1 to 3 , in some embodiments, the vehicle further includes the vehicle longitudinal beam and the subframe 200, and the vehicle further includes an occupant compartment that connects both the vehicle longitudinal beam and the subframe 200. The vehicle longitudinal beam is connected to the first structural member 11, the subframe 200 is connected to the second structural member 12, and the vehicle further includes a battery pack disposed below the occupant compartment. It can be understood that the vehicle can be a new energy vehicle that uses a rechargeable battery as the main power source.

[0062] The above are only optional embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A middle tower structure for detachably connecting a vehicle body longitudinal beam and a subframe, characterized in that, The mid-tower structure includes: a first structural member, a second structural member and a third structural member, the first structural member is connected to the vehicle body longitudinal beam, the second structural member is connected to the subframe, the second structural member is provided with a limiting groove, the third structural member passes through the limiting groove and connects the first structural member and the second structural member; the limiting groove has an avoidance notch located in the groove width direction, and the third structural member can slide out of the limiting groove through the avoidance notch under the action of external force to release the connection between the first structural member and the second structural member.

2. The middle tower structure according to claim 1, characterized in that: The second structural member has a first surface and a second surface, the first surface and the second surface are respectively located on both sides of the avoidance groove; and along the groove depth direction of the limiting groove, the height of the first surface is greater than the height of the second surface, and the third structural member slides out of the limiting groove at the second surface.

3. The middle tower structure according to claim 2, wherein: The second surface is a convex arc surface to guide the third structure to slide out of the limiting groove, and / or the first surface is a plane.

4. The middle tower structure according to any one of claims 2-3, characterized in that: The second structural member includes a structural body and a limiting plate provided with the limiting groove, the structural body having a first end connected to the first structural member and a second end arranged opposite to the first end and connected to the sub-frame, the limiting plate is connected to the first end, the first surface and the second surface are both located on the same side plate surface of the limiting plate, the first structural member is provided with a positioning groove at a position corresponding to the limiting plate, and the limiting plate is clamped in the positioning groove.

5. The middle tower structure according to claim 4, characterized in that: Both intersecting side surfaces of the limiting plate are connected to the first end, and the first surface extends and intersects with the first end.

6. The middle tower structure according to claim 5, characterized in that: The first structural member is provided with a first connecting hole penetrating the positioning groove, and two ends of the third structural member are respectively inserted into the first connecting hole and the limiting groove.

7. The middle tower structure according to claim 5, characterized in that: The first end is further provided with a second connection hole, and / or the second end is provided with a third connection hole connected to the sub-frame.

8. The middle tower structure according to claim 5, characterized in that: The positioning groove is formed at one end of the first structure, and the other end of the first structural member extends in a direction away from the first end and is connected to the vehicle body longitudinal beam.

9. The middle tower structure according to claim 5, wherein: A surface of the first structural member facing away from the positioning groove is provided with an escape zone.

10. A vehicle, characterized in that, The vehicle comprises the mid-tower structure as described in any one of claims 1 to 9, and further comprises the vehicle body longitudinal beam and the subframe.

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