Auxiliary frame and vehicle

Abstract

The utility model discloses an auxiliary frame and a vehicle. The auxiliary frame comprises an auxiliary frame longitudinal beam and an auxiliary frame longitudinal beam, the sleeve is connected with one end of the auxiliary frame longitudinal beam, and the sleeve is suitable for being connected with a vehicle body; one end of the connecting reinforcing plate is connected with the sleeve, and the other end of the connecting reinforcing plate is connected with the auxiliary frame longitudinal beam. Therefore, the connecting reinforcing plate is arranged on the auxiliary frame, one end of the connecting reinforcing plate is connected with the sleeve, and the other end of the connecting reinforcing plate is connected with the auxiliary frame longitudinal beam, so that the wrap angle of the longitudinal beam and the sleeve can be increased, the rigidity and the bearing capacity of the auxiliary frame structure are improved, the stress of a welding area between the auxiliary frame longitudinal beam and the sleeve can be reduced, and the service life of the auxiliary frame is prolonged. Welding failure caused by stress concentration in the welding area is prevented, the durability of the welding area can be improved, in addition, the acting force transmitted to the vehicle body part by the auxiliary frame can be reduced, the damping effect is achieved, the stability and safety of the vehicle can be improved, and the competitiveness of products is improved.

Description

Technical Field

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

[0002] With the development of science and technology and the improvement of users' living standards, vehicles have become an indispensable means of transportation for people. The subframe is an important part of the vehicle chassis. The subframe can not only play a supporting role, but also play a role in vibration reduction and noise reduction, providing a more comfortable driving experience.

[0003] In the related art, the vehicle chassis includes a frame and a subframe. The subframe is connected to the vehicle body through a bushing through a subframe longitudinal beam. When the vehicle is driving, the excitation of the road surface transfers the load to the vehicle body through the subframe bushing. However, the subframe longitudinal beam is a round tube beam, which is welded to the sleeve, and its welding angle is less than 180°, which will lead to a high stress concentration in the welding area. In addition, there are electrophoresis leakage holes, which makes the weld unable to be fully welded and there are disconnection points, resulting in low durability of the weld and a risk of welding failure. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a subframe, which has high rigidity and good weld durability, and can effectively improve the reliability of the structure.

[0005] The utility model further provides a vehicle.

[0006] The subframe of the utility model comprises: a subframe longitudinal beam; a sleeve connected to one end of the subframe longitudinal beam and suitable for being connected to a vehicle body; and a connecting reinforcement plate, one end of the connecting reinforcement plate being connected to the sleeve and the other end being connected to the subframe longitudinal beam.

[0007] Therefore, by arranging a connecting reinforcement plate on the subframe, one end of the connecting reinforcement plate is connected to the sleeve, and the other end is connected to the subframe longitudinal beam. This can not only increase the wrap angle between the longitudinal beam and the sleeve, thereby improving the rigidity and bearing capacity of the subframe structure, but also reduce the force on the welding area between the subframe longitudinal beam and the sleeve, prevent welding failure in the welding area due to stress concentration, and improve the durability of the welding area. In addition, it can also reduce the force transmitted from the subframe to the vehicle body, achieve a vibration reduction effect, and then improve the stability and safety of the vehicle, and enhance the competitiveness of the product.

[0008] In some examples of the present invention, the sleeve is cylindrical, the connecting reinforcement plate and the cylindrical sleeve are fitted together and welded, and the connecting reinforcement plate is arranged on one side of the subframe longitudinal beam and the sleeve corresponding to the radial direction of the sleeve.

[0009] In some examples of the present invention, a weld exists between the subframe longitudinal beam and the sleeve, an end of the weld away from the connecting reinforcement plate is a first end, an end of the connecting reinforcement plate connected to the sleeve is a second end, a circumferential portion of the sleeve corresponding to the portion from the first end to the second end is an angle arc, a central angle of the angle arc is α, and α satisfies the relationship: α>180°.

[0010] In some examples of the present invention, α satisfies the relationship: 180°<α<270°.

[0011] In some examples of the present invention, one end of the subframe longitudinal beam is a connecting end, a leakage hole is provided on a radial side of the connecting end corresponding to the sleeve, and the connecting reinforcement plate is provided on a side of the connecting end radially corresponding to the leakage hole.

[0012] In some examples of the present invention, one end of the auxiliary frame longitudinal beam is a connecting end, the connecting end is connected to the sleeve, the connecting end is provided with a leakage hole, and the connecting reinforcement plate is spaced apart from the leakage hole.

[0013] In some examples of the present invention, the connecting reinforcement plate includes a main board and two side boards, the main board is arranged relative to the sub-frame longitudinal beam and / or the sleeve, the two side boards are arranged on both sides of the main board and are bent and extended relative to the main board, and the side of the side board away from the main board is connected and fixed to the sub-frame longitudinal beam and / or the sleeve.

[0014] In some examples of the present invention, the two side plates are spaced apart and arranged on both sides of the leakage hole.

[0015] In some examples of the present invention, the connection reinforcement plate is provided with weight-reducing holes, and there are a plurality of weight-reducing holes, which are spaced apart from each other on the connection reinforcement plate.

[0016] A vehicle according to an embodiment of the utility model includes: the subframe mentioned above.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a partial schematic diagram of a subframe according to an embodiment of the utility model;

[0020] Figure 2 is a partial schematic diagram of a subframe according to an embodiment of the utility model;

[0021] Figure 3 It is a partial exploded view of a subframe according to an embodiment of the utility model.

[0022] Reference numerals:

[0023] 100. Subframe;

[0024] 10. Subframe longitudinal beam; 101. Connection end; 102. Leakage hole;

[0025] 20. casing; 201. wrap angle arc;

[0026] 30. Connecting reinforcing plate; 301. Main plate; 302. Side plate; 303. Weight reduction hole;

[0027] 40. Weld; 401. First end; 402. Second end. DETAILED DESCRIPTION

[0028] The embodiments of the present utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model are described in detail below.

[0029] Reference below Figure 1-Figure 3 A subframe 100 according to an embodiment of the present invention is described. The subframe 100 may be applied to a vehicle.

[0030] Combination Figure 1-Figure 3 As shown, the sub-frame 100 according to the present invention can mainly include: a sub-frame longitudinal beam 10, a sleeve 20 and a connection reinforcement plate 30. Among them, there is more than one sub-frame longitudinal beam 10, and multiple sub-frame longitudinal beams 10 together define the overall framework of the sub-frame 100. The sub-frame longitudinal beam 10 can not only support and fix other components to ensure the overall strength of the sub-frame 100, but also play an energy absorption role, which can prevent the sub-frame 100 structure from being deformed or broken when the vehicle collides, and can also reduce the force transmitted from the sub-frame 100 to the vehicle body, which can ensure the vibration reduction effect of the vehicle.

[0031] The sleeve 20 is connected to one end of the sub-frame longitudinal beam 10, and the sleeve 20 is suitable for being connected to the vehicle body. Specifically, the sleeve 20 is arranged at one end of the sub-frame longitudinal beam 10, and the sleeve 20 is connected to the vehicle body, so that the sub-frame longitudinal beam 10 is connected to the vehicle body, which can support the vehicle body and ensure the rationality and reliability of the vehicle structure. In addition, the sleeve 20 is connected to one end of the sub-frame longitudinal beam 10, and the connection and fixing method between the sleeve 20 and the sub-frame longitudinal beam 10 is mainly welding, which can not only make the connection between the sleeve 20 and the sub-frame longitudinal beam 10 simple and direct, but also improve the stability of the connection between the sleeve 20 and the sub-frame longitudinal beam 10, thereby improving the stability and reliability of the sub-frame 100 structure.

[0032] One end of the connecting reinforcement plate 30 is connected to the sleeve 20, and the other end is connected to the sub-frame longitudinal beam 10. Specifically, after the sleeve 20 is connected to one end of the sub-frame longitudinal beam 10, a welding angle is formed at the connection. By adding a connecting reinforcement plate 30 in the connection area between the sub-frame longitudinal beam 10 and the sleeve 20, and one end of the connecting reinforcement plate 30 is connected to the sleeve 20, and the other end is connected to the sub-frame longitudinal beam 10, not only can the angle arc 201 formed by welding between the sleeve 20 and the sub-frame longitudinal beam 10 be structurally increased, thereby increasing the welding angle and improving the strength of the welding area between the sleeve 20 and the sub-frame longitudinal beam 10, but also can prevent the welding failure caused by stress concentration in the welding area, can share the force in the welding area, and improve the durability of the welding area, so that the strength of the sub-frame 100 structure can be improved, and the service life of the sub-frame 100 structure can be extended.

[0033] Furthermore, by adding a connection reinforcement plate 30 in the connection area between the subframe longitudinal beam 10 and the sleeve 20, when the road excitation is transmitted to the subframe 100 structure, the connection reinforcement plate 30 can absorb a part of the force transmitted from the subframe longitudinal beam 10 to the vehicle body through the sleeve 20, weaken the force, and thus reduce the force on the vehicle body. This can not only improve the connection strength between the subframe longitudinal beam 10 and the sleeve 20, thereby increasing the strength and bearing capacity of the subframe 100 structure, but also play an energy-absorbing role, reduce the force on the vehicle body structure, so that the vehicle body does not vibrate or reduces the vibration amplitude of the vehicle body, thereby improving the stability of the vehicle structure and improving the user's driving experience.

[0034] Therefore, by arranging the connection reinforcement plate 30 on the subframe 100, one end of the connection reinforcement plate 30 is connected to the sleeve 20, and the other end is connected to the subframe longitudinal beam 10, which can not only increase the wrap angle between the longitudinal beam and the sleeve 20, thereby improving the rigidity and bearing capacity of the subframe 100 structure, but also reduce the force on the welding area between the subframe longitudinal beam 10 and the sleeve 20, prevent the welding area from failing due to stress concentration, and improve the durability of the welding area. In addition, it can also reduce the force transmitted from the subframe 100 to the vehicle body, achieve a vibration reduction effect, and then improve the stability and safety of the vehicle, and enhance the competitiveness of the product.

[0035] In some embodiments of the present invention, the vehicle body and the sleeve 20 of the subframe 100 may be connected by bolts.

[0036] Combination Figure 1 , Figure 2 and Figure 3 As shown, the sleeve 20 is cylindrical, the connecting reinforcement plate 30 and the cylindrical sleeve 20 are mutually attached and welded, and the connecting reinforcement plate 30 is arranged on the side of the sub-frame longitudinal beam 10 and the sleeve 20 corresponding to the radial direction of the sleeve 20. Specifically, the sleeve 20 is cylindrical, so that the force on the tube wall of the sleeve 20 can be evenly distributed, preventing the tube wall from bursting due to uneven force. In addition, according to the maximum area of ​​the same circumference circle, setting the sleeve 20 to a cylindrical shape can not only reduce the structural materials and avoid material waste, but also increase the volume of the vehicle body bracket to increase the stability of the structure.

[0037] Furthermore, by arranging the connection reinforcement plate 30 on the radial side of the subframe longitudinal beam 10 and the sleeve 20 corresponding to the sleeve 20, the connection reinforcement plate 30 and the cylindrical sleeve 20 are fitted together and welded and fixed, which not only can improve the strength of the structure while meeting the structural requirements, but also can make the connection between the connection reinforcement plate 30 and the cylindrical sleeve 20 simple and direct, as well as stable and firm, to ensure the stability of the structure.

[0038] Combination Figure 1 , Figure 2 and Figure 3As shown, there is a weld 40 between the sub-frame longitudinal beam 10 and the sleeve 20, the end of the weld 40 away from the connecting reinforcement plate 30 is the first end 401, the end of the connecting reinforcement plate 30 connected to the sleeve 20 is the second end 402, the portion of the sleeve 20 corresponding to the first end 401 to the second end 402 in the circumferential direction is the wrapping arc 201, the center angle of the wrapping arc 201 is α, and α satisfies the relationship: α>180°. Specifically, after the sub-frame longitudinal beam 10 is connected to the sleeve 20, there is a weld 40 between the sub-frame longitudinal beam 10 and the sleeve 20, and the wrapping arc 201 is formed in the portion of the sleeve 20 corresponding to the first end 401 to the second end 402 of the weld 40, and the center angle of the wrapping arc 201 is required to be greater than 180 degrees, so that not only can the welding failure caused by stress concentration in the welding area be prevented, the durability of the welding area can be improved, and the strength and stability of the structure can be improved.

[0039] Combination Figure 1 , Figure 2 and Figure 3 As shown, α satisfies the relationship: 180°<α<270°. Specifically, the central angle of the wrap arc 201 should be set to be greater than 180 degrees and less than 270 degrees, which can prevent the size of the connecting plate from being too large, avoid adding unnecessary weight and cost, avoid material waste, and improve the rationality and reliability of the structure.

[0040] Combination Figure 1 , Figure 2 and Figure 3 As shown, one end of the sub-frame longitudinal beam 10 is a connection end 101, and a leakage hole 102 is provided on the radial side of the sleeve 20 corresponding to the connection end 101, and a connection reinforcement plate 30 is provided on the side of the connection end 101 corresponding to the leakage hole 102. Specifically, by providing the leakage hole 102 on the radial side of the sleeve 20 corresponding to the connection end 101 of the sub-frame longitudinal beam 10, the leakage hole 102 can be used as a through hole for the electrophoretic liquid to enter and exit the internal cavity of the vehicle body, which can facilitate the circulation of the electrophoretic liquid and enhance the electrophoretic effect. In addition, by providing the connection reinforcement plate 30 on the side of the connection end 101 of the sub-frame longitudinal beam 10 corresponding to the leakage hole 102, not only the strength of the connection end 101 of the sub-frame longitudinal beam 10 can be increased, but also the strength and durability of the leakage hole 102 and its surrounding areas can be effectively improved, and the leakage hole 102 can be prevented from being deformed. In addition, the risk of damage or leakage caused by liquid flow, pressure change or impact force can be reduced.

[0041] Combination Figure 1 , Figure 2 and Figure 3As shown, one end of the auxiliary frame longitudinal beam 10 is a connection end 101, which is connected to the sleeve 20, and is provided with a leakage hole 102, and the connection reinforcement plate 30 is arranged at intervals from the leakage hole 102. Specifically, by arranging the connection end 101 at one end of the auxiliary frame longitudinal beam 10, the connection end 101 is connected to the sleeve 20, and by arranging the connection reinforcement plate 30 and the leakage hole 102 of the connection end 101 at intervals, not only can a cavity position be reserved for the electrophoresis liquid, but also liquid accumulation and blockage can be prevented when the electrophoresis liquid flows through the leakage hole 102 to reach the position of the connection reinforcement plate 30, and the normal electrophoresis process can be ensured, and further, the reliability of the structure of the auxiliary frame 100 can be ensured.

[0042] Combination Figure 1 , Figure 2 and Figure 3 As shown, the connecting reinforcing plate 30 includes a main plate 301 and two side plates 302. The main plate 301 is arranged at a relative interval with the auxiliary frame longitudinal beam 10 and / or the sleeve 20. The two side plates 302 are arranged on both sides of the main plate 301 and are bent and extended relative to the main plate 301. The side of the side plate 302 away from the main plate 301 is connected and fixed to the auxiliary frame longitudinal beam 10 and / or the sleeve 20. Specifically, the connecting reinforcing plate 30 includes a main plate 301 and two side plates 302. By arranging the main plate 301 and the auxiliary frame longitudinal beam 10 and / or the sleeve 20 at a relative interval, a gap is formed between the main plate 301 and the auxiliary frame longitudinal beam 10 and / or the sleeve 20, and then two side plates 302 are arranged on both sides of the main plate 301 and are bent and extended relative to the main plate 301. In this way, it is convenient to connect and fix the connecting reinforcing plate 30 structure with the auxiliary frame longitudinal beam 10 and / or the sleeve 20, which can meet the structural requirements and improve the strength and reliability of the structure.

[0043] Furthermore, by arranging the main plate 301 and the sub-frame longitudinal beam 10 and / or the sleeve 20 relatively to each other and fixing the side plate 302 away from the main plate 301 to the sub-frame longitudinal beam 10 and / or the sleeve 20, a cavity can be formed between the connecting reinforcement plate 30 and the sub-frame longitudinal beam 10 and / or the sleeve 20 for the circulation of the electrophoretic liquid, thereby enhancing the electrophoretic effect.

[0044] Combination Figure 1 , Figure 2 and Figure 3 As shown, two side plates 302 are spaced apart on both sides of the leakage hole 102. Specifically, by spaced apart on both sides of the leakage hole 102, it is not only possible to ensure that the connection reinforcement plate 30 can effectively cover and support the area around the leakage hole 102, but also to prevent the side plates 302 of the connection reinforcement plate 30 from obstructing the flow of the electrophoretic liquid, so that the electrophoretic liquid can pass through the leakage hole 102 normally, and the reliability of the structure of the sub-frame 100 can be improved.

[0045] Combination Figure 1 , Figure 2 and Figure 3 As shown, the connection reinforcement plate 30 is provided with a weight-reducing hole 303, and there are a plurality of weight-reducing holes 303, which are arranged at intervals on the connection reinforcement plate 30. Specifically, by arranging a plurality of weight-reducing holes 303 at intervals on the connection reinforcement plate 30, the weight-reducing effect can be achieved while ensuring the structural stability, which can not only prevent the weight of the sub-frame 100 from being excessively increased due to the addition of the connection reinforcement plate 30, but also prevent the weight-reducing holes 303 from being too dense, thereby causing the structural imbalance of the connection reinforcement plate 30 or making the structure easy to break, further, the structural stability can be improved, and the weight of the overall structure of the sub-frame 100 can be effectively reduced.

[0046] The vehicle according to the utility model can mainly include: the above-mentioned subframe 100. Specifically, since the subframe 100 has a higher structural strength and good stability and reliability, the subframe 100 is applied to the vehicle, which can not only improve the reliability and safety of the vehicle, but also reduce the force transmitted from the subframe 100 to the vehicle body, thereby achieving a vibration reduction effect, thereby improving the driving experience of passengers.

[0047] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0049] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A subframe, characterized in that: include: Subframe longitudinal members; a sleeve connected to one end of the subframe longitudinal beam, the sleeve being suitable for being connected to a vehicle body; A connecting reinforcement plate, one end of which is connected to the sleeve, and the other end of which is connected to the auxiliary frame longitudinal beam.

2. The subframe according to claim 1, characterized in that: The sleeve is cylindrical, the connecting reinforcement plate and the cylindrical sleeve are mutually attached and welded, and the connecting reinforcement plate is arranged on one side of the auxiliary frame longitudinal beam and the sleeve corresponding to the radial direction of the sleeve.

3. The subframe according to claim 2, characterized in that: There is a weld between the auxiliary frame longitudinal beam and the sleeve, the end of the weld away from the connecting reinforcement plate is the first end, the end of the connecting reinforcement plate connected to the sleeve is the second end, the circumferential portion of the sleeve corresponding to the first end to the second end is an angle arc, the central angle of the angle arc is α, and α satisfies the relationship: α>180°.

4. The subframe according to claim 3, characterized in that: α satisfies the relationship: 180°<α<270°.

5. The subframe according to claim 2, characterized in that: One end of the auxiliary frame longitudinal beam is a connecting end, a leakage hole is arranged on a radial side of the connecting end corresponding to the sleeve, and the connecting reinforcement plate is arranged on a side of the connecting end corresponding to the leakage hole in a radial direction.

6. The subframe according to claim 1, characterized in that: One end of the auxiliary frame longitudinal beam is a connecting end, the connecting end is connected to the sleeve, the connecting end is provided with a leakage hole, and the connecting reinforcement plate is spaced apart from the leakage hole.

7. The subframe according to claim 6, characterized in that: The connecting reinforcement plate includes a main plate and two side plates. The main plate is arranged relative to the auxiliary frame longitudinal beam and / or the sleeve at an interval. The two side plates are arranged on both sides of the main plate and are bent and extended relative to the main plate. The side of the side plate away from the main plate is connected and fixed to the auxiliary frame longitudinal beam and / or the sleeve.

8. The subframe according to claim 7, characterized in that: The two side plates are respectively arranged at intervals on both sides of the leakage hole.

9. The subframe according to claim 1, characterized in that: The connection reinforcement plate is provided with a plurality of weight-reducing holes, and the plurality of weight-reducing holes are arranged at intervals on the connection reinforcement plate.

10. A vehicle, characterized in that: include: The subframe according to any one of claims 1 to 9.

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