Bracket structure and vehicle

Abstract

The present application provides a bracket structure and a vehicle. The bracket structure includes an upper crossbeam, a lower crossbeam and a connecting beam which are integrally formed by centrifugal casting. The connecting beam is located between the upper crossbeam and the lower crossbeam and is connected to the upper crossbeam and the lower crossbeam. An upper chamber arranged along the length direction thereof is formed in the upper crossbeam, and a lower chamber arranged along the length direction thereof is formed in the lower crossbeam. The upper crossbeam, the lower crossbeam and the connecting beam of the present application are integrally formed by centrifugal casting, and the bracket structure has a high degree of integration, a small number of parts and a low manufacturing cost. At the same time, the present application is provided with an upper chamber and a lower chamber, and the arrangement of the chambers enables the bracket structure to have a higher rigidity and a better collision force transmission effect.

Description

Technical Field

[0001] The present application relates to the field of vehicles, and in particular to a bracket structure and a vehicle. Background Art

[0002] As people's living standards continue to improve, many different types of vehicles have appeared on the market. The front engine compartment assembly is an important part of the vehicle. The modules, pipes, wiring harnesses and other components arranged in the front engine compartment assembly are numerous and complex. The integrated modules and compressors in existing vehicles are arranged irregularly, and the brackets are designed directly in the front engine compartment. The bracket is welded and assembled with multiple stamping parts, with low integration, a large number of parts and high manufacturing costs. Some bracket structures use plate structures or rod structures, which cannot form closed chambers, and the bracket structure has low rigidity and poor collision force transmission effect.

[0003] Therefore, it is necessary to provide an improved bracket structure and vehicle to solve the above problems. Summary of the invention

[0004] The present application provides a bracket structure and a vehicle with high integration and rigidity and good collision force transmission effect.

[0005] The present application provides a bracket structure, comprising an upper crossbeam, a lower crossbeam and a connecting beam integrally formed by centrifugal casting; the connecting beam is located between the upper crossbeam and the lower crossbeam and connected to the upper crossbeam and the lower crossbeam; an upper chamber is formed in the upper crossbeam along its length direction, and a lower chamber is formed in the lower crossbeam along its length direction.

[0006] Furthermore, the connecting beam includes two inclined beams; the two inclined beams are arranged obliquely relative to the upper cross beam and the lower cross beam.

[0007] Furthermore, the width of the lower chamber is greater than that of the upper chamber, and in the width direction, the lower chamber protrudes forward relative to the upper chamber; the inclined beam is arranged along the vertical direction and is perpendicular to the upper cross beam and the lower cross beam; the main body of the inclined beam is trapezoidal, and the front and rear sides of the inclined beam are both hypotenuses.

[0008] Furthermore, a concave cavity is formed on one side of the inclined beam, and a plurality of oblique reinforcing ribs and a plurality of horizontal reinforcing ribs are arranged in the concave cavity; the plurality of oblique reinforcing ribs and the plurality of horizontal reinforcing ribs are both arranged through the inclined beam.

[0009] Furthermore, a partition wall arranged along the length direction is formed in the lower chamber; the partition wall forms at least two sub-cavities in the lower chamber; the partition wall is connected to the top wall and the bottom wall of the lower chamber and passes through the lower chamber.

[0010] Furthermore, an S-shaped beam is assembled on the upper crossbeam, the bottom of the S-shaped beam is connected to the middle of the upper crossbeam; the S-shaped beam is arranged to be tilted backward relative to the upper crossbeam; and a water flow trough connection portion is provided at the top of the S-shaped beam.

[0011] Furthermore, a joint portion is provided on the outer side of the upper chamber; the joint portion is assembled to the upper chamber; and the length of the lower chamber is greater than the length of the upper chamber.

[0012] Furthermore, a joint portion is provided on the outer side of the upper chamber, and the joint portion is integrally formed with the upper chamber; the joint portion forms a groove structure; a wheel cover fixing hole is provided on the joint portion; and a positioning pin is provided at the lower part of the joint portion.

[0013] Furthermore, a mounting frame and / or a mounting chamber are integrally formed on the upper crossbeam and the lower crossbeam, and mounting points are provided on the mounting frame and / or the mounting chamber; and the mounting chamber is communicated with the lower chamber.

[0014] Furthermore, the installation points include multiple refrigerant module installation points, multiple compressor installation points and multiple coolant module installation points; the refrigerant module installation points and the coolant module installation points are provided on the upper crossbeam; the refrigerant module installation points, the compressor installation points and the coolant module installation points are provided on the lower crossbeam.

[0015] Furthermore, a local thickening portion is formed at the end of the lower chamber, the height of the local thickening portion is the same as the height of the end of the lower chamber, and a machined through hole is provided on the local thickening portion.

[0016] Furthermore, the bracket structure is made of steel; the centrifugal casting uses a sand core as a mold, and vacuum adsorption technology is used during centrifugal pouring; the main bodies of the upper crossbeam, the lower crossbeam and the connecting beam are all thin-walled structures; the upper chamber and the lower chamber are both closed structures in the circumferential direction.

[0017] The present application also provides a vehicle, comprising a front cabin assembly and the above-mentioned bracket structure, wherein the bracket structure is connected to the front cabin assembly; the front cabin assembly comprises a front longitudinal beam and a front wheel cover, wherein the front wheel cover is arranged on the outer side of the front longitudinal beam along the width direction of the vehicle body; the two ends of the upper cross beam are connected to the front wheel cover, and the two ends of the lower cross beam are connected to the front longitudinal beam.

[0018] Furthermore, the lower cross beam is connected to the front cabin assembly via at least two support seats, and the support seats are connected to the front longitudinal beam or the front wheel cover.

[0019] The upper crossbeam, lower crossbeam and connecting beam of the present application are integrally formed by centrifugal casting, the bracket structure has high integration, fewer parts and lower manufacturing cost. The bracket structure is integrally formed to form an upper chamber and a lower chamber, and the arrangement of the chamber makes the bracket structure have higher rigidity and better collision force transmission effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the bracket structure of the present application.

[0021] Figure 2 yes Figure 1 A side view of the bracket structure is shown.

[0022] Figure 3 yes Figure 1 A top view of the bracket structure is shown.

[0023] Figure 4 yes Figure 1 Schematic diagram of the bracket structure shown without the splayed beam assembled.

[0024] Figure 5 yes Figure 4 A front view of the bracket structure is shown.

[0025] Figure 6 yes Figure 4 A cross-sectional view of the bracket structure along line AA is shown.

[0026] Figure 7 yes Figure 4 A cross-sectional view of the bracket structure along line BB is shown.

[0027] Figure 8 It is a rear view of another embodiment of the bracket structure of the present application.

[0028] Fig. 9 It is a schematic diagram of the structure of the vehicle of the present application, wherein only a part of the vehicle is shown.

[0029] Fig.10 yes Fig. 9 A schematic diagram of a vehicle from another perspective is shown, wherein only part of the bracket structure is shown.

[0030] Description of Figure Numbers:

[0031] 100, upper chamber; 101, joint; 102, groove structure; 103, wheel cover fixing hole; 104, positioning pin; 105, slope surface; 200, lower chamber; 300, front cabin assembly; 400, front longitudinal beam; 500, front wheel cover; 600, support seat; 601, vertical side wall; 602, horizontal side wall; 10, upper crossbeam; 11, fourth force transmission path; 12, fifth force transmission path; 20, lower crossbeam; 201, first sub-chamber; 202, second sub-chamber; 203, third sub-chamber; 21, partition wall; 211, first partition wall; 212, second partition wall; 22, Top wall; 23, bottom wall; 24, side wall; 25, local thickening portion; 251, through hole; 26, first force transmission path; 27, second force transmission path; 30, connecting beam; 301, concave cavity; 302, oblique stiffener; 303, horizontal stiffener; 31, cable-stayed beam; 32, cable-stayed beam; 33, third force transmission path; 40, eight-shaped beam; 41, bottom; 42, top; 421, water flow trough connection; 50, mounting frame; 51, stiffener; 60, mounting chamber; 70, mounting point; 71, refrigerant module mounting point; 72, compressor mounting point; 73, coolant module mounting point. DETAILED DESCRIPTION

[0032] Here, the technical solutions in the embodiments (or "implementation methods") of the present application will be described clearly and completely in conjunction with the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0033] If there are terms involving directional indications or positional relationships in the embodiments of the present application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first" and "second" in the embodiments of the present application are only used for the purpose of convenience of description and cannot be understood as indicating or implying relative importance.

[0034] See also Figure 1 to Figure 2 As shown, the present application provides a bracket structure, including an upper crossbeam 10, a lower crossbeam 20, a connecting beam 30 and an eight-shaped beam 40. The upper crossbeam 10 is parallel to the lower crossbeam 20, and the connecting beam 30 is located between the upper crossbeam 10 and the lower crossbeam 20. The connecting beam 30 is connected to the upper crossbeam 10 and the lower crossbeam 20. The eight-shaped beam 40 is assembled on the upper crossbeam 10. The eight-shaped beam 40 is tilted backward relative to the upper crossbeam 10. The upper crossbeam 10, the lower crossbeam 20, and the connecting beam 30 are integrally formed by centrifugal casting.

[0035] Centrifugal casting uses a sand core as a mold, and vacuum adsorption technology is used during centrifugal casting. The main bodies of the upper crossbeam 10, the lower crossbeam 20 and the connecting beam 30 are all thin-walled structures. An upper chamber 100 is formed in the upper crossbeam 10 along its length, and a lower chamber 200 is formed in the lower crossbeam 20 along its length. The upper chamber 100 and the lower chamber 200 are both closed structures in the circumferential direction.

[0036] According to the implementation of the present application, the bracket structure is made of steel. The bracket structure uses steel ingots as raw materials, melts the steel ingots into molten steel, and then uses vacuum adsorption technology when centrifugal casting is injected into the sand core mold. The cost of the sand core mold and steel materials is lower than that of aluminum castings.

[0037] Please also see Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, a joint portion 101 is provided on the outer side of the upper chamber 100. There are two joint portions 101, which are respectively located at the two ends of the upper chamber 100. The joint portion 101 is integrally formed with the upper chamber 100. The joint portion 101 forms a groove structure 102. The opening direction of the groove structure 102 faces upward. A wheel cover fixing hole 103 is provided in the groove structure 102 of the joint portion 101. A positioning pin 104 is integrally formed at the lower part of the joint portion 101. A slope surface 105 is formed in the groove structure 102, and one end of the slope surface 105 is smoothly connected to the bottom of the groove structure 102. The other end of the slope surface 105 is integrally formed with the top wall of the upper crossbeam 10.

[0038] According to the embodiment of the present application, the number of the positioning pins 104 is set to two or more. When the bracket structure is installed on the vehicle, the relative position of the bracket structure and the vehicle body can be positioned by the positioning pins 104 to improve the installation accuracy of the trailer structure.

[0039] In some embodiments, the diameter of the bottom of the positioning pin 104 may be smaller than the diameter of the top of the positioning pin 104 to form an approximately conical shape, which may serve as a guide so that the positioning pin 104 protrudes into the positioning hole of the vehicle body.

[0040] According to other embodiments of the present application, the joint portion may also be designed to be separate from the upper crossbeam 10 , and the joint portion is assembled to the upper chamber 100 . Figure 8 Only the structure of the integrally formed part of the bracket structure is shown, and the joint part that needs to be assembled later is not shown. The joint part can be screwed and fixed to the two ends of the upper crossbeam 10 by bolts, screws and other fixing parts. The length of the lower chamber 200 is greater than the length of the upper chamber 100, that is, the length of the lower crossbeam 20 is greater than the length of the upper crossbeam 10. The length difference between the lower chamber 200 and the upper chamber 100 on one side (such as Figure 8The horizontal distance h shown in [figure] is greater than or equal to 45 mm.

[0041] There are two installation processes for installing the bracket structure on the vehicle body, namely the lifting process and the hoisting process. The lifting process is to lift the bracket structure upward along the height direction of the vehicle body so that the bracket structure is installed on the vehicle body. In order to avoid interference between the upper cross beam 10 and the other components of the vehicle body during installation in the lifting process, the length of the upper cross beam 10 needs to be less than the length of the lower cross beam 20. At this time, the joint part is separately arranged from the upper cross beam 10. After the bracket structure is lifted to the installation position, the joint part is then screwed to the upper cross beam 10. A lapping surface of 30 mm and a lifting safety distance of 15 mm need to be set between the lower cross beam 20 and the vehicle body. Therefore, the horizontal distance h between the end of the upper cross beam 10 and the end of the lower cross beam 20 along the length direction of the bracket structure is greater than or equal to 45 mm, and the end of the lower cross beam 20 is located outside the end of the upper cross beam 10.

[0042] In some other embodiments, when the length of the lapping surface between the lower cross beam 20 and the vehicle body is less than 30 mm or the lifting safety distance is also less than 15 mm, the length difference between one side of the lower chamber 200 and the upper chamber 100 can also be set to be less than 45 mm.

[0043] The hoisting process is to lower the bracket structure downward along the height direction of the vehicle body so that the bracket structure is installed on the vehicle body. The length of the upper cross beam 10 can be greater than the length of the lower cross beam 20. The joint part 101 can be integrally formed with the upper chamber 100, or the split joint part can be screwed to the upper cross beam 10 and then hoisted to the installation position on the vehicle body.

[0044] The lower cross beam 20 includes a top wall 22, a bottom wall 23 and two opposite side walls 24. A partition wall 21 arranged along the length direction is formed in the lower chamber 200. The partition wall 21 is integrally formed by centrifugal casting with the lower cross beam 20, the upper cross beam 10 and the connecting beam 30. The partition wall 21 forms at least two sub-chambers in the lower chamber 200. The partition wall 21 is connected to the top wall 22 and the bottom wall 23 of the lower chamber 200 and penetrates through the lower chamber 200.

[0045] In some embodiments, the cross-section after the partition wall 21 is arranged in the lower chamber 200 can be in the shape of "day" or "eye", or a cross-section with different sub-chamber areas. The arrangement of the partition wall 21 improves the anti-deformation ability and stiffness of the lower cross beam 20.

[0046] According to an embodiment of the present application, the partition wall 21 includes a first partition wall 211 and a second partition wall 212. The first partition wall 211, the top wall 22, the bottom wall 23 and the side wall 24 together form a first sub-cavity 201. The first partition wall 211, the second partition wall 212, the top wall 22 and the bottom wall 23 together form a second sub-cavity 202. The second partition wall 212, the top wall 22, the bottom wall 23 and the side wall 24 together form a third sub-cavity 203. The first sub-cavity 201, the second sub-cavity 202 and the third sub-cavity 203 are all closed structures in the circumferential direction.

[0047] The end of the lower chamber 200 is formed with a local thickening portion 25, and the height of the local thickening portion 25 is the same as the height of the end of the lower chamber 200. The local thickening portion 25 is provided with a machined through hole 251. When the bracket structure is installed to the vehicle body by a lifting process, the through hole 251 can be a machined threaded mounting hole. When the bracket structure is installed to the vehicle body by a hoisting process, the through hole 251 can be a machined mounting through hole.

[0048] The connecting beam 30 includes two inclined beams 31 and 32. The two inclined beams 31 and 32 are arranged obliquely in the width direction relative to the upper cross beam 10 and the lower cross beam 20. The two inclined beams 31 and 32 are arranged near the middle of the length direction of the upper cross beam 10 and the lower cross beam 20. The width of the lower chamber 200 is greater than the width of the upper chamber 100. In the width direction, the lower chamber 200 is arranged to protrude forward relative to the upper chamber 100, and the lower chamber 200 is arranged roughly flush with the rear side of the upper chamber 100. The inclined beams 31 and 32 are arranged in the vertical direction and are perpendicular to the upper cross beam 10 and the lower cross beam 20.

[0049] refer to Figure 2 The main body of the inclined beams 31 and 32 is trapezoidal, with a narrow upper side and a wide lower side. The upper side and the lower side of the inclined beams 31 and 32 are respectively connected to the upper cross beam 10 and the lower cross beam 20. The front and rear sides of the inclined beams 31 and 32 are both inclined sides, and the inclination angle of the rear side of the inclined beams 31 and 32 is greater than the inclination angle of the front side.

[0050] The side surfaces of the inclined beam 31 and the inclined beam 32 facing away from each other respectively form a cavity 301. The opening of the cavity 301 faces the two ends of the upper cross beam 10 and the lower cross beam 20. A plurality of oblique reinforcing ribs 302 and a plurality of horizontal reinforcing ribs 303 are arranged in the cavity 301. The plurality of oblique reinforcing ribs 302 and the plurality of horizontal reinforcing ribs 303 are arranged through the inclined beams 31 and 32. The plurality of oblique reinforcing ribs 302 and the plurality of horizontal reinforcing ribs 303 are integrally formed with the upper cross beam 10, the lower cross beam 20 and the connecting beam 30 by centrifugal casting.

[0051] There are four oblique reinforcing ribs 302, and the four oblique reinforcing ribs 302 are obliquely arranged along the width direction relative to the upper cross beam 10 and the lower cross beam 20. The length of the oblique reinforcing ribs 302 connected to the edges of the upper cross beam 10 and the lower cross beam 20 is greater than the oblique reinforcing ribs 302 connected to the middle of the upper cross beam 10 and the lower cross beam 20. The oblique reinforcing ribs 302 are connected to the upper cross beam 10 and the lower cross beam 20 respectively. The horizontal reinforcing ribs 303 are connected to the front and rear sides of the inclined beams 31 and 32 respectively.

[0052] The number of horizontal reinforcing ribs 303 is three, and the three horizontal reinforcing ribs 303 are parallel to the upper cross beam 10 and the lower cross beam 20. The length of the horizontal reinforcing rib 303 close to the lower cross beam 20 is greater than the length of the horizontal reinforcing rib 303 close to the upper cross beam 10.

[0053] According to an embodiment of the present application, the inclined beam 31 and the inclined beam 32 are both arranged vertically and parallel to each other. According to another embodiment of the present application, the two inclined beams may not be arranged in parallel, but may be arranged in an outward-facing "X" shape. The two inclined beams are arranged obliquely along the length direction relative to the upper cross beam 10 and the lower cross beam 20, that is, the main body of the inclined beam is inclined. The two inclined beams in an outward-facing "X" shape can make the collision force transmission to the upper cross beam 10 more efficient.

[0054] When the bracket structure is hit, the first impacted position is the lower cross beam 20. The lower chamber 200 enables the lower cross beam 20 to have a good anti-deformation ability, and forms a first force transmission path 26 and a second force transmission path 27 along the length direction of the lower cross beam 20. The collision force is transmitted to the front longitudinal beam 400 of the vehicle along the first force transmission path 26 and the second force transmission path 27 (see FIG. Fig. 9 ). At the same time, the two inclined beams 31 and 32 transmit force upward. The oblique reinforcement ribs 302 on the inclined beams 31 and 32 can provide multiple third force transmission paths 33. The collision force is transmitted to the upper cross beam 10 along the third force transmission path 33. The upper chamber 100 enables the upper cross beam 10 to have better anti-deformation ability, and forms a fourth force transmission path 11 and a fifth force transmission path 12 along the length direction of the upper cross beam 10. The collision force is transmitted to the front wheel cover 500 of the vehicle on both sides along the fourth force transmission path 11 and the fifth force transmission path 12 (see Fig. 9 ).

[0055] The eight-shaped beam 40 includes a bottom 41 and a top 42. The bottom 41 is connected to the middle of the upper cross beam 10. The eight-shaped beam 40 is arranged to be tilted backward relative to the upper cross beam 10, that is, the eight-shaped beam 40 is tilted backward along the length direction of the vehicle body. The top 42 of the eight-shaped beam 40 is provided with a water flow channel connection part 421. The eight-shaped beam 40 is formed separately and then assembled to the bracket structure.

[0056] According to various embodiments of the present application, the S-shaped beam 40 can be selectively used according to the height and property requirements of the vehicle. When the vehicle model is a high vehicle, the upper cross beam 10 is connected to the water flow channel of the vehicle by setting the S-shaped beam 40 to improve the rigidity of the bracket structure. When the vehicle model is a low vehicle, the S-shaped beam 40 may not be set but the upper cross beam 10 is directly connected to the water flow channel. Or different types of S-shaped beams 40 can be selected according to the height and low vehicle models to make the bracket structure more versatile.

[0057] The upper cross beam 10 and the lower cross beam 20 are integrally formed with a mounting frame 50. The mounting frame 50 is provided with a mounting point 70. The mounting frame 50 is a cantilever structure integrally formed on the upper cross beam 10 and the lower cross beam 20. A reinforcing rib 51 may also be integrally formed between the mounting frame 50 and the upper cross beam 10 and the lower cross beam 20 to improve the strength of the mounting frame 50.

[0058] The lower cross beam 20 is integrally formed with an installation chamber 60. The installation chamber 60 is provided with an installation point 70. The installation chamber 60 is connected to the lower chamber 200 and is perpendicular to the lower chamber 200. The opening direction of the installation chamber 60 is different from the opening directions of the two ends of the lower cross beam 20.

[0059] According to other embodiments of the present application, an installation chamber may also be integrally formed on the upper cross beam 10 , and an installation point is provided on the installation chamber. The installation chamber is connected to the upper chamber 100 and is perpendicular to the upper chamber 100 .

[0060] In some embodiments, the mounting frame 50 and the mounting chamber 60 may be disposed on both the upper beam 10 and the lower beam 20 , or only one of them may be disposed.

[0061] The mounting points 70 include a plurality of refrigerant module mounting points 71, a plurality of compressor mounting points 72, and a plurality of coolant module mounting points 73. The upper cross beam 10 is provided with the refrigerant module mounting points 71 and the coolant module mounting points 73. The refrigerant module mounting points 71 and the coolant module mounting points 73 on the upper cross beam 10 are respectively located on both sides of the connecting beam 30 and are both provided on the mounting frame 50.

[0062] The lower cross beam 20 is provided with a refrigerant module mounting point 71, a compressor mounting point 72 and a coolant module mounting point 73. The refrigerant module mounting point 71 and the coolant module mounting point 73 on the lower cross beam 20 are respectively located on both sides of the connecting beam 30 and are both arranged on the mounting chamber 60. The compressor mounting point 72 on the lower cross beam 20 is located between the refrigerant module mounting point 71 and the coolant module mounting point 73 and is arranged on the mounting frame 50.

[0063] The refrigerant module mounting point 71 on the upper cross beam 10 and the lower cross beam 20 is used to mount the refrigerant module of the vehicle. The coolant module mounting point 73 on the upper cross beam 10 and the lower cross beam 20 is used to mount the coolant module of the vehicle. The compressor mounting point 72 on the upper cross beam 10 and the lower cross beam 20 is used to mount the compressor of the vehicle. The compressor is arranged between the coolant module and the refrigerant module, and is located between the two inclined beams 31 and 32.

[0064] See also Fig. 9 and Fig.10 As shown, the present application also provides a vehicle, including a front cabin assembly 300 and the above-mentioned bracket structure. The bracket structure is connected to the front cabin assembly 300. The front cabin assembly 300 includes a front longitudinal beam 400 and a front wheel cover 500. Along the width direction of the vehicle body, the front wheel cover 500 is arranged on the outside of the front longitudinal beam 400. Both ends of the upper cross beam 10 are connected to the front wheel cover 500, and both ends of the lower cross beam 20 are connected to the front longitudinal beam 400.

[0065] The coolant module, compressor and refrigerant integrated module of the vehicle can be installed in two ways, namely, drop-down installation and suspension installation. For drop-down installation, the lower crossbeam 20 is the main load-bearing beam, and the lower crossbeam 20 is connected to the front longitudinal beam 400. The upper crossbeam 10 plays an auxiliary connecting role, and the two ends of the upper crossbeam 10 are connected to the front wheel cover 500. For suspension installation, the upper crossbeam 10 is the main load-bearing beam, and the lower crossbeam 20 plays an auxiliary connecting role.

[0066] The lower cross beam 20 is connected to the front cabin assembly 300 through at least two support seats 600. The support seat 600 can be connected to the front longitudinal beam 400 or the front wheel cover 500. The support seat 600 includes a vertical side wall 601 and a horizontal side wall 602 connected together. When the bracket structure adopts the lifting process, the support seat 600 is L-shaped, and the vertical side wall 601 is connected to the front wheel cover 500 (such as Fig.10 ), the lateral side wall 602 overlaps the top of the lower cross beam 20. The lateral side wall 602 is connected to the top wall 22, and the through hole 251 is a threaded mounting hole.

[0067] According to other embodiments of the present application, when the bracket structure adopts a hoisting process, the support seat 600 is in an inverted L-shape, the vertical side wall is connected to the front longitudinal beam 400, and the lower cross beam 20 is overlapped on the top of the transverse side wall. The transverse side wall is connected to the bottom wall 23, and the through hole 251 is an installation hole. The support seat 600 is connected to the front longitudinal beam 400 or the front wheel cover 500, so that the bracket structure can maintain its stability under different installation processes. During the lifting process, the support seat 600 is connected to the front wheel cover 500 to better withstand the vertical load brought by the bracket structure, and under the hoisting process, the support seat is connected to the front longitudinal beam, which can evenly transfer the load to the front longitudinal beam to avoid local stress concentration.

[0068] The upper crossbeam 10, the lower crossbeam 20 and the connecting beam 30 of the present application are integrally formed by centrifugal casting, and the bracket structure has high integration, a small number of parts and low manufacturing cost. At the same time, the present application sets an upper chamber 100 and a lower chamber 200, and the setting of the chamber makes the bracket structure have higher rigidity and better collision force transmission effect.

[0069] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without causing conflicts. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the drawings; all modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this application should be included in the scope of protection of this application.

Claims

1. A bracket structure, characterized in that: It comprises an upper crossbeam, a lower crossbeam and a connecting beam which are integrally formed by centrifugal casting; the connecting beam comprises two inclined beams; the two inclined beams are inclined relative to the upper crossbeam and the lower crossbeam; the connecting beam is located between the upper crossbeam and the lower crossbeam and is connected to the upper crossbeam and the lower crossbeam; an upper chamber is formed in the upper crossbeam along its length direction, and a lower chamber is formed in the lower crossbeam along its length direction; the width of the lower chamber is greater than the width of the upper chamber, and the lower chamber protrudes forward relative to the upper chamber in the width direction; the main body of the inclined beam is trapezoidal.

2. The bracket structure according to claim 1, characterized in that: The inclined beam is arranged along the vertical direction and is perpendicular to the upper cross beam and the lower cross beam; the front side and the rear side of the inclined beam are both inclined sides.

3. The bracket structure according to claim 1, characterized in that: A concave cavity is formed on one side of the inclined beam, and a plurality of oblique reinforcing ribs and a plurality of horizontal reinforcing ribs are arranged in the concave cavity; the plurality of oblique reinforcing ribs and the plurality of horizontal reinforcing ribs are both arranged through the inclined beam.

4. The bracket structure according to claim 1, characterized in that: A partition wall arranged along the length direction is formed in the lower chamber; the partition wall forms at least two sub-cavities in the lower chamber; the partition wall is connected to the top wall and the bottom wall of the lower chamber and passes through the lower chamber.

5. The bracket structure according to claim 1, characterized in that: An S-shaped beam is assembled on the upper crossbeam, the bottom of the S-shaped beam is connected to the middle of the upper crossbeam; the S-shaped beam is arranged to be tilted backward relative to the upper crossbeam; and a water flow trough connection part is arranged at the top of the S-shaped beam.

6. The bracket structure according to claim 1, characterized in that: A joint portion is provided on the outer side of the upper chamber; the joint portion is assembled to the upper chamber; and the length of the lower chamber is greater than the length of the upper chamber.

7. The bracket structure according to claim 1, characterized in that: A joint portion is provided on the outer side of the upper chamber, and the joint portion is integrally formed with the upper chamber; the joint portion forms a groove structure; a wheel cover fixing hole is provided on the joint portion; and a positioning pin is provided at the lower part of the joint portion.

8. The bracket structure according to claim 1, characterized in that: A mounting frame and / or a mounting chamber are integrally formed on the upper cross beam and the lower cross beam, and mounting points are arranged on the mounting frame and / or the mounting chamber; the mounting chamber is communicated with the lower chamber.

9. The bracket structure according to claim 8, characterized in that: The installation points include multiple refrigerant module installation points, multiple compressor installation points and multiple coolant module installation points; the refrigerant module installation points and the coolant module installation points are arranged on the upper crossbeam; the refrigerant module installation points, the compressor installation points and the coolant module installation points are arranged on the lower crossbeam.

10. The bracket structure according to claim 1, characterized in that: A local thickening portion is formed at the end of the lower chamber, the height of the local thickening portion is the same as the height of the end of the lower chamber, and a machined through hole is provided on the local thickening portion.

11. The bracket structure according to claim 1, characterized in that: The bracket structure is made of steel; the centrifugal casting uses a sand core as a mold, and vacuum adsorption technology is used during centrifugal pouring; the upper crossbeam, the lower crossbeam and the main body of the connecting beam are all thin-walled structures; the upper chamber and the lower chamber are both closed structures in the circumferential direction.

12. A vehicle, characterized in that: It comprises a front engine compartment assembly and a bracket structure as described in any one of claims 1 to 11, wherein the bracket structure is connected to the front engine compartment assembly; the front engine compartment assembly comprises a front longitudinal beam and a front wheel cover, wherein the front wheel cover is arranged on the outer side of the front longitudinal beam along the width direction of the vehicle body; the two ends of the upper cross beam are connected to the front wheel cover, and the two ends of the lower cross beam are connected to the front longitudinal beam.

13. The vehicle according to claim 12, characterized in that The lower cross beam is connected to the front cabin assembly through at least two support seats; the support seat is connected to the front longitudinal beam or the front wheel cover.

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