Auxiliary frame connecting structure and vehicle

Abstract

The utility model provides an auxiliary frame connecting structure and a vehicle, and relates to the technical field of vehicle part manufacturing. The auxiliary frame connecting structure comprises at least two supporting pieces. The at least two supporting pieces are mutually connected in a surrounding mode to form a cavity with an opening, the at least two supporting pieces are connected with the longitudinal beam at the opening, the bottom of the cavity is opposite to the opening, and the bottom is used for being connected with an auxiliary frame; at least one supporting piece is provided with a main body part and a turned edge which are obliquely connected, and the turned edge is connected with the other supporting piece in an attached mode. The structure stability and strength of the cavity are good, the connecting strength between the auxiliary frame and the longitudinal beam is improved, the at least two supporting pieces are connected with each other, design, manufacturing and machining are easy, the welding reliability is improved through the flanging structure, and welding forming is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle parts manufacturing, and in particular relates to a sub-frame connection structure and a vehicle. Background Art

[0002] The subframe is the frame between the front and rear axles of the vehicle, used to support the front and rear axles and suspension system, so that the front and rear axles are connected to the main frame through the subframe, which has the function of blocking vibration and noise.

[0003] The subframe connection structure provides a subframe mounting point for connecting the subframe to the main frame. Its structural strength affects the connection stability between the subframe and the main frame, which in turn directly affects the NVH (Noise, Vibration, Harshness) performance and safety performance of the entire vehicle.

[0004] The strength of the subframe connection structure in the related art needs to be improved. Utility Model Content

[0005] In view of this, the utility model aims to provide a subframe connection structure and a vehicle, which can solve the problem of low strength of the subframe connection structure in the related art.

[0006] In order to solve the above technical problems, the utility model is achieved as follows:

[0007] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0008] A subframe connection structure includes at least two support members;

[0009] At least two of the support members are mutually enclosed and connected to form a cavity with an opening, at least two of the support members are connected to the longitudinal beam at the opening, the bottom of the cavity is opposite to the opening, and the bottom is used to connect the subframe;

[0010] At least one of the support members has a main body and a flange connected obliquely, and the flange is closely connected to another support member.

[0011] Further, the subframe connection structure includes a first support member, a second support member and a third support member;

[0012] The first support member, the second support member and the third support member are mutually enclosed and connected in pairs to form the cavity.

[0013] Furthermore, the subframe mounting structure also includes a reinforcement member;

[0014] The reinforcement is fixed between the side walls of the cavity, the bottom of the cavity has a first through hole, the reinforcement has a second through hole coaxial with the first through hole, and the first through hole and the second through hole are used to fix the threaded tube of the subframe.

[0015] Further, the first support member includes a first side plate, a second side plate and a bottom plate;

[0016] The bottom plate is obliquely connected to one side of the first side plate, and the second side plate is obliquely connected to the other adjacent side of the first side plate;

[0017] The second support member, the third support member, the first side plate and the bottom plate are connected to enclose and form the cavity. The bottom plate is opposite to the opening. The second side plate is located outside the cavity and is used to connect the longitudinal beam.

[0018] Furthermore, the second support member includes a first main body portion and a second main body portion which are connected to each other obliquely;

[0019] One side of the first main body and one side of the second main body are both connected to the bottom plate, the other adjacent side of the first main body is connected to the third support member, the other adjacent side of the second main body is connected to the first side plate, and one side of the first main body and the other opposite side of the second main body are both located at the opening for connection with the longitudinal beam.

[0020] Further, the side edge of the first main body is obliquely connected to a first flange, and / or the side edge of the second main body is obliquely connected to a second flange;

[0021] The first flange is in close contact with at least one of the bottom plate, the third support member or the longitudinal beam;

[0022] The first flange is closely connected to at least one of the bottom plate, the first side plate or the longitudinal beam.

[0023] Furthermore, the third support member includes a third main body portion and at least two third flanges connected obliquely;

[0024] The third main body is connected to the second support member, one side of the third main body is connected to the first side plate through at least one third flange, and the other adjacent side of the third main body is connected to the bottom plate through another third flange.

[0025] Furthermore, the side edge of the reinforcement member obliquely extends with at least three fourth flanges;

[0026] One of the fourth flanges is fitted and connected to the first main body, one of the fourth flanges is fitted and connected to the second main body, and another of the fourth flanges is fitted and connected to the first side panel.

[0027] Furthermore, the side edge of the reinforcement member is obliquely extended with at least two fifth flanges;

[0028] One of the fifth flanged layers is connected between the first flange and the third main body portion, and the other fifth flanged layer is connected between the first side plate and the third flange.

[0029] Compared with the prior art, the subframe connection structure of the utility model has the following advantages:

[0030] The sub-frame connection structure described in the utility model includes at least two support members, at least two support members enclose to form a cavity structure, the cavity has a side wall and a bottom, and the bottom is opposite to the opening of the upper part. The bottom is used to connect the sub-frame, and the support member is connected to the longitudinal beam at the opening. At least one support member has a main body and a flange, the flange is connected to the main body at an angle, and the flange is connected to other support members. First, the cavity structure has good stability and strength. The longitudinal beam is connected to the opening of the cavity and can be connected to at least two support members at the same time, which improves the connection strength between the sub-frame connection structure and the longitudinal beam. At the same time, the bottom is connected to the sub-frame, thereby improving the connection strength between the sub-frame and the longitudinal beam. Secondly, compared with the one-piece molding structure, at least two support members are connected to each other, which is easy to design and manufacture, and at least one support member is connected to other support members by flanges. Since different support members are inclined to each other at a certain angle, the flange structure improves the operability of processing and is conducive to structural molding.

[0031] Another object of the present invention is to provide a vehicle to improve the connection stability of the vehicle subframe.

[0032] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0033] A vehicle comprises the subframe connection structure described in any one of the above items.

[0034] Compared with the prior art, the vehicle described in the present invention has the same advantages as the above-mentioned subframe connection structure, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0036] Figure 1 It is a schematic diagram of the sub-frame connection structure provided by an embodiment of the utility model;

[0037] Figure 2 This is a schematic diagram of the connection between the sub-frame connection structure and the longitudinal beam of an embodiment of the utility model;

[0038] Figure 3 This is a schematic diagram of the structure of the first support member in an embodiment of the utility model;

[0039] Figure 4 It is a schematic diagram of the structure of the second support member in an embodiment of the utility model;

[0040] Figure 5 It is a schematic diagram of the structure of the third support member in the embodiment of the utility model;

[0041] Figure 6 This is a schematic diagram of the internal structure of the cavity of an embodiment of the utility model;

[0042] Figure 7 This utility model embodiment Figure 1 Schematic diagram of the local plane along direction A;

[0043] Figure 8 This utility model embodiment Figure 1 Schematic diagram of the local plane along direction B;

[0044] Fig. 9 This utility model embodiment Figure 1 Plane diagram along the C direction;

[0045] Fig.10 It is a schematic diagram of the connection structure between the third support member and the longitudinal beam outer plate and the longitudinal beam inner plate in the embodiment of the utility model.

[0046] Reference numerals:

[0047] 1-support member, 11-first support member, 111-first side plate, 112-second side plate, 113-bottom plate, 12-second support member, 121-first main body, 122-second main body, 1221-welding through hole, 123-first flange, 124-second flange, 13-third support member, 131-third main body, 132-third flange, 14-first through hole, 2-reinforcement member, 201-second through hole, 21-fourth flange, 22-fifth flange, 3-longitudinal beam, 31-longitudinal beam outer plate, 32-longitudinal beam inner plate, 4-threaded tube. DETAILED DESCRIPTION

[0048] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0049] The sub-frame connection structure and the vehicle provided by the embodiments of the present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0050] The utility model embodiment provides a sub-frame connection structure, referring to Figure 1 and Figure 2 The sub-frame connection structure includes at least two support members 1, at least two of the support members 1 are mutually enclosed and connected to form a cavity with an opening, at least two of the support members 1 are connected to the longitudinal beam 3 at the opening, the bottom of the cavity is opposite to the opening, and the bottom is used to connect the sub-frame; at least one of the support members 1 has a main body and a flange connected obliquely, and the flange is fitted and connected to another support member 1.

[0051] Specifically, if Figure 1 and Figure 2 As shown, the subframe connection structure includes at least two support members 1. In other words, two support members 1, three support members 1 or more support members 1 may be provided. At least two support members 1 are mutually enclosed and connected to form a cavity with an opening, and the bottom of the cavity is opposite to the opening. In one embodiment, when two support members 1 are provided, the bottom plate of at least one support member 1 forms the bottom of the cavity, and the side plates of the two support members 1 are mutually enclosed to form the side walls of the cavity. In another embodiment, as Figure 2 As shown, when three support members 1 are provided, the bottom plate of at least one support member 1 forms the bottom of the cavity, and the side plates of this support member 1 and the side plates of the other two support members 1 are mutually enclosed to form the side walls of the cavity. Since the cavity in this embodiment has four side walls, at least one support member 1 has two mutually perpendicular side plates. When the sub-frame connection structure of this embodiment is used to connect the longitudinal beam 3 of the sub-frame and the main frame, the bottom of the cavity is fitted and connected with the sub-frame, and at least two support members 1 are connected with the longitudinal beam 3 at the opening of the cavity. The cavity structure is relatively stable, which can disperse the force, buffer and absorb energy, and avoid damage to the structure caused by excessive concentration of stress. In addition, the longitudinal beam 3 is connected with at least two support members 1 at the opening, which increases the connection points and improves the connection strength between the sub-frame structure and the longitudinal beam. At the same time, the bottom is fitted and connected with the sub-frame, thereby improving the connection strength between the sub-frame and the longitudinal beam.

[0052] Specifically, at least one of the support members 1 has a main body and a flange connected obliquely, and the angle between the main body and the flange can be set to 70°, 80° or 90°. Taking into account the structural strength and processing difficulty factors, the main body and the flange of this embodiment are perpendicular to each other and form an angle of 90°. In actual processing and manufacturing, due to assembly errors, this angle is generally slightly less than 90°. The flange of one support member 1 is connected to the flange or main body of another adjacent support member 1, and the connection form includes but is not limited to welding, screwing or riveting. In order to improve the connection strength, this embodiment adopts welding connection, and each support member 1 is provided with at least two flanges. For example, Figure 2 As shown, the second support member 12 is provided with at least two first flanges 123 for connecting with the first support member 11 or the third support member 13; the third support member 13 is provided with at least two third flanges 132 for connecting with the first support member 11 or the second support member 12. The support member 1 in this embodiment is an integrally stamped plate, which is easy to control in strength and lighter in weight. The structure formed by at least two support members 1 enclosing and connecting each other can control the overall sub-frame connection structure by changing the shape and size of any one of the support members 1, which is easy to design and manufacture. Since different support members 1 are inclined at a certain angle to each other, direct welding has a certain difficulty. The provision of a flange structure improves welding reliability and facilitates welding.

[0053] The sub-frame connection structure provided by the embodiment of the utility model, firstly, at least two support members enclose to form a cavity structure, the cavity structure has good stability and strength, the longitudinal beam is connected to the opening of the cavity, and can be connected to at least two support members at the same time, which improves the connection strength between the sub-frame connection structure and the longitudinal beam, and at the same time, the bottom is connected to the sub-frame, thereby improving the connection strength between the sub-frame and the longitudinal beam. Secondly, at least two support members are connected to each other, which is easy to design and manufacture, and the provision of a flange structure improves welding reliability and facilitates welding and forming.

[0054] Further, see Figure 1 and Figure 2 The sub-frame connection structure includes a first support member 11, a second support member 12 and a third support member 13; the first support member 11, the second support member 12 and the third support member 13 are mutually enclosed and connected to form the cavity.

[0055] Specifically, if Figure 1 and Figure 2As shown, this embodiment is provided with three support members including a first support member 11, a second support member 12 and a third support member 13. Among them, the first support member 11 has a bottom plate 113 and a side plate, the second support member 12 and the third support member 13 are both connected to the bottom plate 113, the second support member 12, the third support member 13 and the side plate of the first support member 11 are mutually enclosed to form the side wall of the cavity, and the second support member 12 and the third support member 13 are mutually connected at the side, that is, the first support member 11, the second support member 12 and the third support member 13 are mutually enclosed and connected to form a cavity structure, and the connection points are increased to improve the structural strength and connection stability.

[0056] Further, see Figure 1 , Figure 2 and Fig. 9 The sub-frame mounting structure also includes a reinforcement 2; the reinforcement 2 is fixed between the side walls of the cavity, the bottom of the cavity has a first through hole 14, the reinforcement 2 has a second through hole 201 coaxial with the first through hole 14, and the first through hole 14 and the second through hole 201 are used to fix the threaded tube 4 of the sub-frame.

[0057] Specifically, if Figure 1 , Figure 2 and Fig. 9 As shown, the reinforcement 2 is fixed between the side walls of the cavity. When the reinforcement 2 is an integral stamping plate, it has a certain structural strength, which improves the strength and rigidity of the overall structure. When the sub-frame connection structure is subjected to a certain impact force, the reinforcement 2 can reduce the degree of structural deformation of the cavity and ensure structural stability. The bottom of the cavity has a first through hole 14, and the reinforcement 2 is provided with a second through hole 201, and the second through hole 201 is coaxially arranged with the first through hole 14. When the sub-frame connection structure of this embodiment is connected to the sub-frame, the threaded tube 4 of the sub-frame of the sub-frame is penetrated and fixed in the second through hole 201 and the first through hole 14, forming a threaded connection between the sub-frame and the sub-frame connection structure.

[0058] Further, see Figures 1 to 3 The first support member 11 includes a first side panel 111, a second side panel 112 and a bottom panel 113; the bottom panel 113 is obliquely connected to one side of the first side panel 111, and the second side panel 112 is obliquely connected to the other adjacent side of the first side panel 111; the second support member 12, the third support member 13, the first side panel 111 and the bottom panel 113 are connected to form the cavity, the bottom panel 113 is opposite to the opening, and the second side panel 112 is located outside the cavity and is used to connect the longitudinal beam 3.

[0059] Specifically, if Figures 1 to 3As shown, the first support member 11 includes a first side plate 111, a second side plate 112 and a bottom plate 113. The bottom plate 113 forms the bottom of the cavity, the first side plate 111 is obliquely connected to the bottom plate 113, the side edge of the first side plate 111 is obliquely connected to the second side plate 112, the second side plate 112 is located outside the cavity and is spaced apart from the bottom plate 113, and the first side plate 111 and the second side plate 112 are used to connect the longitudinal beam 3. Therefore, the first support member 11 is a three-sided frame-shaped semi-enclosed structure. In this embodiment, the bottom plate 113 is vertically connected to the first side plate 111, and the second side plate 112 is vertically connected to the first side plate 111, so that the first support member 11 has three structural surfaces in orthogonal directions, resisting the impact forces from three orthogonal directions and improving the structural stability. The second support member 12, the third support member 13, the first side plate 111 and the bottom plate 113 are connected to form a cavity, wherein the first side plate 111 forms a side wall of the cavity, the second support member 12 forms two adjacent side walls of the cavity, and the third support member 13 forms a side wall of the cavity.

[0060] Further, see Figure 1 , Figure 2 and Figure 4 The second support member 12 includes a first main body portion 121 and a second main body portion 122 which are connected to each other obliquely; one side of the first main body portion 121 and one side of the second main body portion 122 are both connected to the bottom plate 113, the other adjacent side of the first main body portion 121 is connected to the third support member 13, the other adjacent side of the second main body portion 122 is connected to the first side plate 111, and one side of the first main body portion 121 and the other opposite side of the second main body portion 122 are both located at the opening for connection with the longitudinal beam 3.

[0061] Specifically, if Figure 1 , Figure 2 and Figure 4 As shown, the second support member 12 includes a first main body 121 and a second main body 122 connected to each other obliquely. In this embodiment, the first main body 121 and the second main body 122 are arranged to be perpendicular to each other, so the second support member 12 is an L-shaped structure. The lower parts of the first main body 121 and the second main body 122 are both connected to the bottom plate 113, and the upper parts of the first main body 121 and the second main body 122 are both used for welding with the longitudinal beam 3. The side of the first main body 121 is connected to the third support member 13, and the side of the second main body 122 is connected to the first side plate 111. The connection forms include but are not limited to welding, screwing or riveting.

[0062] Further, see Figure 1 , Figure 2 and Figure 4The side edge of the first main body 121 is obliquely connected to a first flange 123, and / or the side edge of the second main body 122 is obliquely connected to a second flange 124; the first flange 123 is fitted and connected to at least one of the bottom plate 113, the third support member 13 or the longitudinal beam 3; the first flange 123 is fitted and connected to at least one of the bottom plate 113, the first side plate 111 or the longitudinal beam 3.

[0063] Specifically, if Figure 1 , Figure 2 and Figure 4 As shown, at least one of the first main body 121 and the second main body 122 is connected with a flange structure, and the second support member 12 is welded to the first support member 11, the third support member 13 or the longitudinal beam 3 through the flange structure. The flange structure is provided to increase the contact area and facilitate welding and fixing. Both the first flange 123 and the second flange 124 can be set to at least two to improve the welding strength. The side, upper part and lower part of the first main body 121 of this embodiment are each provided with a first flange 123, wherein the first flange 123 of the upper part is welded to the longitudinal beam 3, the first flange 123 of the lower part is welded to the bottom plate 113, and the first flange 123 of the side is welded to the third main body 131 of the third support member 13. The side and lower part of the second main body 122 are each provided with a second flange 124, wherein the second flange 124 of the side is welded to the first side plate 111, and the second flange 124 of the lower part is welded to the bottom plate 113.

[0064] Further, see Figure 1 , Figure 2 and Figure 5 The third support member 13 includes an obliquely connected third main body portion 131 and at least two third flanges 132; the third main body portion 131 is connected to the second support member 12, one side of the third main body portion 131 is fitted and connected to the first side plate 111 through at least one third flange 132, and the other adjacent side of the third main body portion 131 is fitted and connected to the bottom plate 113 through another third flange 132.

[0065] Specifically, if Figure 1 , Figure 2 and Figure 5As shown, the third support member 13 includes a third main body 131 and at least two third flanges 132. The third flanges 132 extend obliquely from the side of the third main body 131. The third main body 131 is welded to the first flange 123 of the first main body 121. The side of the third main body 131 is welded to the first side plate 111 through the third flange 132, and the lower part of the third main body 131 is fitted and connected to the bottom plate 113 through another third flange 132. The third flange 132 structure is provided to facilitate the connection between the third support member 13 and the first support member 11, and the fitting connection method improves the welding strength. The upper part of the third main body 131 is welded to the longitudinal beam 3, as shown in FIG. Fig.10 As shown, the longitudinal beam 3 includes a longitudinal beam outer plate 31 and a longitudinal beam inner plate 32 , and the third main body portion 131 is welded to the longitudinal beam outer plate 31 and the longitudinal beam inner plate 32 in three layers at the upper portion.

[0066] Further, see Figure 1 , Figure 2 and Figure 6 At least three fourth flanges 21 extend obliquely from the side of the reinforcement 2; one of the fourth flanges 21 is fitted and connected to the first main body 121, one of the fourth flanges 21 is fitted and connected to the second main body 122, and another of the fourth flanges 21 is fitted and connected to the first side panel 111.

[0067] Specifically, if Figure 1 , Figure 2 and Figure 6 As shown, the three sides of the reinforcement 2 each extend upward to a fourth flange 21, one of the fourth flanges 21 is connected to the first main body 121 to form a weld, one of the fourth flanges 21 is connected to the second main body 122 to form a weld, and another fourth flange 21 is connected to the first side plate 111 to form a weld. The three fourth flanges 21 are connected to each other to improve the structural strength. That is, the upper part of the reinforcement 2 forms a structural surface in three directions, which improves the fixing strength of the reinforcement 2 in the cavity in three directions to prevent the reinforcement 2 from shaking and displacing due to force, affecting the structural stability of the threaded tube 4.

[0068] Further, see Figure 7 and Figure 8 At least two fifth flanges 22 are obliquely extended from the side of the reinforcement 2; one of the fifth flanges 22 is laminated and connected between the first flange 123 and the third main body 131, and the other fifth flange 22 is laminated and connected between the first side plate 111 and the third flange 132.

[0069] Specifically, if Figure 7 and Figure 8As shown, at least two fifth flanges 22 are extended from the lower part of the reinforcement member 2. One of the fifth flanges 22 is sandwiched between the first flange 123 and the third main body 131 to form a three-layer welded structure, and the other fifth flange 22 is sandwiched between the first side plate 111 and the third flange 132 to form a three-layer welded structure, which improves the connection strength between the reinforcement member 2 and the first support member 11, the second support member 12 and the third support member 13, further limits and fixes the reinforcement member 2, and prevents the reinforcement member 2 from shaking and displacement due to force.

[0070] In addition, specifically, Figure 2 As shown, a welding through hole 1221 is provided near the opening at the upper portion of the second main body portion 122 of the second support member 12, so that an operator can hold a welding tool and extend it into the cavity through the welding through hole 1221 to weld the three-layer structure between the third main body portion 131 of the third support member 13, the longitudinal beam outer plate 31 and the longitudinal beam inner plate 32.

[0071] An embodiment of the utility model further provides a vehicle, comprising the subframe connection structure described in any one of the aforementioned embodiments, so as to improve the connection stability of the vehicle subframe, thereby improving the NVH performance and safety performance of the entire vehicle.

[0072] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A subframe connection structure, It is characterized in that comprising at least two supporting members (1); At least two of the support members (1) are mutually enclosed and connected to form a cavity having an opening, at least two of the support members (1) are connected to the longitudinal beam (3) at the opening, the bottom of the cavity is opposite to the opening, and the bottom is used to connect to the subframe; At least one of the support members (1) comprises a main body portion and a flange which are connected obliquely, and the flange is fittedly connected to another of the support members (1).

2. The subframe connection structure according to claim 1, It is characterized in that The sub-frame connection structure comprises a first support member (11), a second support member (12) and a third support member (13); The first support member (11), the second support member (12) and the third support member (13) are mutually enclosed and connected in pairs to form the cavity.

3. The subframe connection structure according to claim 2, It is characterized in that The subframe mounting structure further includes a reinforcement member (2); The reinforcement member (2) is fixed between the side walls of the cavity, the bottom of the cavity has a first through hole (14), the reinforcement member (2) has a second through hole (201) coaxial with the first through hole (14), and the first through hole (14) and the second through hole (201) are used to fix the threaded tube (4) of the subframe.

4. The subframe connection structure according to claim 3, It is characterized in that The first support member (11) comprises a first side plate (111), a second side plate (112) and a bottom plate (113); The bottom plate (113) is obliquely connected to one side of the first side plate (111), and the second side plate (112) is obliquely connected to the other adjacent side of the first side plate (111); The second support member (12), the third support member (13), the first side plate (111) and the bottom plate (113) are connected to enclose and form the cavity, the bottom plate (113) is opposite to the opening, and the second side plate (112) is located outside the cavity and is used to connect the longitudinal beam (3).

5. The subframe connection structure according to claim 4, It is characterized in that The second support member (12) comprises a first main body portion (121) and a second main body portion (122) which are connected to each other obliquely; One side of the first main body (121) and one side of the second main body (122) are both connected to the bottom plate (113), the other adjacent side of the first main body (121) is connected to the third support member (13), the other adjacent side of the second main body (122) is connected to the first side plate (111), and one side of the first main body (121) and the other opposite side of the second main body (122) are both located at the opening for connection with the longitudinal beam (3).

6. The subframe connection structure according to claim 5, It is characterized in that The side edge of the first main body (121) is obliquely connected to a first flange (123), and / or the side edge of the second main body (122) is obliquely connected to a second flange (124); The first flange (123) is in close contact connection with at least one of the bottom plate (113), the third support member (13) or the longitudinal beam (3); The first flange (123) is fittedly connected to at least one of the bottom plate (113), the first side plate (111) or the longitudinal beam (3).

7. The subframe connection structure according to claim 6, It is characterized in that The third support member (13) comprises a third main body portion (131) and at least two third flanges (132) connected in an inclined manner; The third main body portion (131) is connected to the second support member (12), one side of the third main body portion (131) is fitted and connected to the first side plate (111) via at least one third flange (132), and the other adjacent side of the third main body portion (131) is fitted and connected to the bottom plate (113) via another third flange (132).

8. The subframe connection structure according to claim 5, It is characterized in that The side edge of the reinforcement member (2) is obliquely extended with at least three fourth flanges (21); One of the fourth flanges (21) is fitted and connected to the first main body (121), one of the fourth flanges (21) is fitted and connected to the second main body (122), and the other of the fourth flanges (21) is fitted and connected to the first side panel (111).

9. The subframe connection structure according to claim 7, It is characterized in that The side edge of the reinforcement member (2) is obliquely extended with at least two fifth flanges (22); One of the fifth flanges (22) is laminated and connected between the first flange (123) and the third main body (131), and the other fifth flange (22) is laminated and connected between the first side plate (111) and the third flange (132).

10. A vehicle, It is characterized in that The vehicle includes the subframe mounting structure according to any one of claims 1 to 9.

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