Front auxiliary frame structure suitable for electric automobile

Abstract

The front auxiliary frame structure suitable for the electric automobile comprises the frame front beam, the frame cross beam and the frame rear beam, the two ends of the frame cross beam are connected with the frame front beam and the frame rear beam respectively, the arrangement problem of modules on the front auxiliary frame can be optimized, the balance weight of the whole automobile is optimized, light weight of the automobile is achieved, and the service life of the automobile is prolonged. The energy absorption unit is arranged on the frame cross beam, the strength and rigidity of the whole automobile are improved, the crumple space of the front end of the automobile body is increased, when the front end structure of the automobile body is subjected to direct collision crumple deformation, extrusion damage to all modules is reduced, and the energy absorption effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of automobile front subframe, concretely, the utility model relates to a front subframe structure suitable for electric automobile. BACKGROUND

[0002] The collision safety of pure electric vehicle is concerned, the high voltage battery pack and driving system are the core components of pure electric vehicle, and the high voltage battery pack and driving system are relatively large in size, therefore the protection and maintenance of high voltage battery pack and driving system are extremely important, a plurality of separate modules are directly installed on the front subframe, and then installed on the vehicle body, the strength and rigidity of the front subframe structure in the prior art are poor, when the front end structure of the vehicle body occurs positive crash collapse deformation, the positive crash collapse deformation space is small, the extrusion damage to each control module is large, and the energy absorption effect is poor.

[0003] In order to solve the above problems, the patent document with the authorization announcement number 104340272B discloses a front subframe assembly, a vehicle and a mounting method of the front subframe assembly and the front bumper. The front subframe assembly comprises a front subframe main body and a front extension beam; the front end of the front subframe main body on both sides is provided with a first connecting plate facing the front, and the first connecting plate is provided with a hanging hole; the two ends of the front extension beam are provided with a second connecting plate facing the front end of the front subframe main body, and the second connecting plate is provided with a hook matched with the hanging hole; the first connecting plate and the second connecting plate are overlapped and connected, and the hook is hung in the hanging hole, but the above problems cannot be solved.

[0004] Therefore, in order to improve or solve at least one of the above problems, it is necessary to optimize the existing front subframe, provide a front subframe structure suitable for electric automobile, which can optimize the arrangement of each module on the front subframe, optimize the overall vehicle weight, realize the lightweight of automobile, improve the overall strength and rigidity of automobile, increase the collapse space of the front end of vehicle body, reduce the extrusion damage to each module when the front end structure of the vehicle body occurs positive crash collapse deformation, and improve the energy absorption effect. SUMMARY

[0005] The utility model is in order to solve above-mentioned problem and carries out, the purpose lies in providing a kind of front subframe structure suitable for electric automobile, which can optimize the arrangement of each module on the front subframe, optimize the overall vehicle weight, realize the lightweight of automobile, improve the overall strength and rigidity of automobile, increase the collapse space of the front end of vehicle body, reduce the extrusion damage to each module when the front end structure of the vehicle body occurs positive crash collapse deformation, and improve the energy absorption effect, to realize above-mentioned purpose, the technical scheme that the utility model adopts is as follows:

[0006] The utility model provides a front subframe structure suitable for electric automobile has such characteristics, including frame front beam, frame crossbeam and frame rear beam, the both ends of frame crossbeam are connected with frame front beam and frame rear beam respectively, is equipped with energy absorption unit on frame crossbeam.

[0007] In the front subframe structure suitable for electric automobile provided by the utility model, the frame crossbeam can comprise a left crossbeam and a right crossbeam, the both ends of the left crossbeam are connected with the frame front beam and the frame rear beam respectively, and the both ends of the right crossbeam are connected with the frame front beam and the frame rear beam respectively.

[0008] In the front subframe structure suitable for electric automobile provided by the utility model, a first supporting plate can be arranged between the left crossbeam and the frame front beam, and a second supporting plate can be arranged between the right crossbeam and the frame front beam.

[0009] In the front subframe structure suitable for electric automobile provided by the utility model, the energy absorption unit can comprise a first induced deformation hole, a second induced deformation hole and a third induced deformation hole arranged on the left crossbeam, and the energy absorption unit can further comprise a fourth induced deformation hole, a fifth induced deformation hole and a sixth induced deformation hole arranged on the right crossbeam.

[0010] In the front subframe structure suitable for electric automobile provided by the utility model, a first bolt connecting hole can be arranged at one end of the left crossbeam close to the frame front beam, and a second bolt connecting hole can be arranged at one end of the right crossbeam close to the frame front beam.

[0011] In the front subframe structure suitable for electric automobile provided by the utility model, the both ends of the frame front beam can be provided with a front beam connecting seat, and the both ends of the frame rear beam can be provided with a rear beam connecting seat.

[0012] In the front subframe structure suitable for electric automobile provided by the utility model, a first supporting base can be arranged on the left crossbeam, and a second supporting base can be arranged on the right crossbeam; a first steering gear with a cross tie rod connecting base can be arranged on the left crossbeam, and a second steering gear with a cross tie rod connecting base can be arranged on the right crossbeam.

[0013] In the front subframe structure suitable for electric automobile provided by the utility model, a power assembly supporting seat can be arranged on the frame front beam and the frame rear beam.

[0014] In the front subframe structure suitable for electric automobile provided by the utility model, an air conditioning system supporting seat can be arranged on the frame rear beam.

[0015] The technical effects of this utility model are as follows: The front subframe structure for electric vehicles provided by this utility model includes a front frame beam, a frame crossbeam, and a frame rear beam. The two ends of the frame crossbeam are connected to the front frame beam and the frame rear beam, respectively. This optimizes the arrangement of various modules on the front subframe, optimizes the overall vehicle weight distribution, and achieves vehicle lightweighting. The frame crossbeam is equipped with energy-absorbing units, which helps to improve the overall strength and rigidity of the vehicle, increases the crumple zone at the front of the vehicle body, and reduces the crushing damage to various modules when the front structure of the vehicle body undergoes frontal collision crumple deformation, thus improving the energy absorption effect.

[0016] Therefore, the front subframe structure for electric vehicles provided by this utility model can optimize the arrangement of various modules on the front subframe, optimize the overall vehicle weight distribution, achieve vehicle lightweighting, improve the overall strength and rigidity of the vehicle, increase the crumple space at the front of the vehicle body, reduce the crushing damage to various modules when the front structure of the vehicle body undergoes frontal collision crumple deformation, and improve the energy absorption effect. Attached Figure Description

[0017] This manual includes the following figures, which illustrate the following:

[0018] Figure 1 This is a schematic diagram of the front subframe structure applicable to electric vehicles in an embodiment of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the left and right crossbeams in an embodiment of this utility model;

[0020] Figure 3 This is a schematic diagram of the right crossbeam in the side view direction in an embodiment of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the front beam of the vehicle frame in an embodiment of this utility model;

[0022] Figure 5 This is a schematic diagram showing the connection of the front subframe structure, the left and right front longitudinal beam assemblies, and the power support assembly in an embodiment of this utility model.

[0023] Figure 6 This is a schematic diagram of the various modules installed on the front subframe structure, the left and right front longitudinal beam assemblies, and the power support assembly in an embodiment of this utility model.

[0024] The markings in the diagram are as follows: Front beam of the frame -10, front beam connecting seat -11, cross beam of the frame -20, left cross beam -21, first bolt connection hole -211, first bolt connection base -212, first support base -213, first steering gear with tie rod connecting base -214, right cross beam -22, second bolt connection hole -221, second bolt connection base -222, second support base -223, second steering gear with tie rod connecting base -224, first support plate -23, second support plate -24, rear beam of the frame -30, rear beam connecting seat -31, energy absorption unit -40, first induced deformation hole -41, second induced deformation hole -42, third induced deformation hole -43, fourth induced deformation hole -44, fifth induced deformation hole -45, sixth induced deformation hole -46, powertrain support seat -50, air conditioning system support seat -60. Detailed Implementation

[0025] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention, and to facilitate its implementation.

[0026] Figure 1 This is a schematic diagram of the front subframe structure applicable to electric vehicles in an embodiment of this utility model.

[0027] like Figure 1 As shown, the front subframe structure for electric vehicles provided by this utility model includes a front frame beam 10, a frame crossbeam 20, and a rear frame beam 30. The two ends of the frame crossbeam 20 are connected to the front frame beam 10 and the rear frame beam 30, respectively. This optimizes the arrangement of various modules on the front subframe, optimizes the overall vehicle weight distribution, and achieves vehicle lightweighting. The frame crossbeam 20 is equipped with an energy-absorbing unit 40, which helps to improve the overall strength and rigidity of the vehicle, increases the crumple zone at the front of the vehicle body, and reduces the crushing damage to various modules when the front structure of the vehicle body undergoes frontal collision crumple deformation, thus improving the energy absorption effect.

[0028] Figure 2 This is a schematic diagram of the structure of the left and right crossbeams in an embodiment of this utility model.

[0029] like Figure 2 As shown, the frame crossbeam 20 includes a left crossbeam 21 and a right crossbeam 22. The two ends of the left crossbeam 21 are connected to the front frame beam 10 and the rear frame beam 30, respectively, and the two ends of the right crossbeam 22 are connected to the front frame beam 10 and the rear frame beam 30, respectively, thereby improving the structural strength and rigidity of the front subframe and improving the overall strength and rigidity of the vehicle.

[0030] A first support plate 23 is provided between the left crossbeam 21 and the front beam 10 of the frame. The two sides of the first support plate 23 are connected to the left crossbeam 21 and the front beam 10 of the frame respectively, utilizing the stability of the triangular structure. A second support plate 24 is provided between the right crossbeam 22 and the front beam 10 of the frame. The two sides of the second support plate 24 are connected to the left crossbeam 21 and the front beam 10 of the frame respectively, utilizing the stability of the triangular structure, further improving the structural strength and rigidity of the front subframe, which is beneficial to improving the overall strength and rigidity of the vehicle.

[0031] Figure 3 This is a schematic diagram of the right crossbeam in the side view direction in an embodiment of this utility model.

[0032] like Figure 2 and Figure 3 As shown, the energy absorption unit 40 includes a first induced deformation hole 41, a second induced deformation hole 42, and a third induced deformation hole 43 disposed on the left crossbeam 21. The first induced deformation hole 41 and the second induced deformation hole 42 are located on the left crossbeam 21 near the rear beam 30 of the frame, and the third induced deformation hole 43 is located on the left crossbeam 21 near the front beam 10 of the frame. The energy absorption unit 40 also includes a fourth induced deformation hole 44, a fifth induced deformation hole 45, and a sixth induced deformation hole 46 disposed on the right crossbeam 22. The fourth induced deformation hole 44 and the fifth induced deformation hole 45 are located on the right crossbeam 22 near the rear beam 30 of the frame, and the sixth induced deformation hole 46 is located on the right crossbeam 22 near the rear beam 30 of the frame. 46 is located on the right crossbeam 22 at one end near the front beam 10 of the frame. The position of the first induced deformation hole 41 corresponds to the position of the fourth induced deformation hole 44, the position of the second induced deformation hole 42 corresponds to the position of the fifth induced deformation hole 45, and the position of the third induced deformation hole 43 corresponds to the position of the sixth induced deformation hole 46. The induced deformation holes increase the stiffness of the frame crossbeam 20 while ensuring that the deformation of the frame crossbeam 20 does not interfere with each other along the beam direction. This helps to improve the energy absorption capacity of the frame crossbeam 20. When the front end structure of the car body undergoes frontal collision crumpling deformation, it reduces the crushing damage to each module, which is conducive to improving the energy absorption effect and enhancing the protection of other modules in the frame.

[0033] Figure 4 This is a schematic diagram of the front beam of the vehicle frame in an embodiment of this utility model.

[0034] like Figure 4 As shown, the left crossbeam 21 has a first bolt connection hole 211 at one end near the front beam 10 of the frame, and the right crossbeam 22 has a second bolt connection hole 221 at one end near the front beam 10 of the frame. The first bolt connection hole 211 and the second bolt connection hole 221 are connected by bolts to fix the frame crossbeam 20 and the left and right connecting plates of the door sill to each other.

[0035] like Figure 4As shown, the left crossbeam 21 is provided with a first bolt connection base 212 at one end near the front beam 10 of the frame, and the right crossbeam 22 is provided with a second bolt connection base 222 at one end near the front beam 10 of the frame. The first bolt connection base 212 and the second bolt connection base 222 are used to connect with the power bracket assembly, which helps to optimize the layout of various modules on the front subframe, optimize the vehicle weight distribution, achieve vehicle lightweighting, and increase the crumple zone at the front of the vehicle body.

[0036] The front beam 10 of the frame is provided with front beam connecting seats 11 at both ends. The front beam connecting seats 11 are used to connect the front beam 10 of the frame to the power support assembly. The rear beam 30 of the frame is provided with rear beam connecting seats 31 at both ends. The rear beam connecting seats 31 are used to connect the rear beam 30 of the frame to the power support assembly.

[0037] The left crossbeam 21 is provided with a first support base 213, and the right crossbeam 22 is provided with a second support base 223. The first support base 213 and the second support base 223 are used to connect with the rest of the front structure of the vehicle body, which helps to optimize the layout of the modules on the front subframe, optimize the weight distribution of the whole vehicle, achieve vehicle lightweighting, and increase the crumple space at the front of the vehicle body.

[0038] The left crossbeam 21 is provided with a first steering gear with tie rod connecting base 214, and the right crossbeam 22 is provided with a second steering gear with tie rod connecting base 224. The first steering gear with tie rod connecting base 214 and the second steering gear with tie rod connecting base 224 are used to connect with the vehicle steering gear, which helps to optimize the layout of various modules on the front subframe, optimize the vehicle weight distribution, achieve vehicle lightweighting, and increase the crumple zone at the front of the vehicle body.

[0039] The front beam 10 and rear beam 30 of the frame are equipped with powertrain support seats 50, which are used to connect the front subframe and the power support assembly. The rear beam 30 of the frame is also equipped with an air conditioning system support seat 60, which is used to connect the front subframe and the air conditioning system. This helps to optimize the layout of various modules on the front subframe, optimize the overall vehicle weight distribution, achieve vehicle lightweighting, and increase the crumple zone at the front of the vehicle body.

[0040] Figure 5 This is a schematic diagram showing the connection of the front subframe structure, the left and right front longitudinal beam assemblies, and the power support assembly in an embodiment of this utility model. Figure 6 This is a schematic diagram of the various modules installed on the front subframe structure, the left and right front longitudinal beam assemblies, and the power support assembly in an embodiment of this utility model.

[0041] like Figure 5 and Figure 6As shown, when the front subframe structure for electric vehicles provided by this utility model is connected to the left and right front longitudinal beam assemblies and the power support assembly, the front subframe has two power assembly mounting towers and one power assembly mounting bracket on the front beam 10 and rear beam 30 of the frame, respectively. The electric drive assembly is fixed by bolt connection and welding. The motor controller assembly is bolted to the upper bracket of the power support crossbeam and mounted above the power support assembly. The power supply system assembly is bolted to the lower bracket of the power support crossbeam and mounted above the power support assembly. A set of redundant screw holes is also provided on the lower bracket of the power support crossbeam, allowing for the installation of other specifications of power supply system assemblies according to actual conditions. This reasonable spatial arrangement effectively avoids the deformation mode of the vehicle body structure directly compressing the motor controller assembly, power supply system assembly, and electric drive assembly after crumpling deformation, improving the safety of the power battery system in the lower part of the vehicle body.

[0042] The front subframe structure for electric vehicles provided by this utility model includes a front frame beam 10, a frame crossbeam 20, and a rear frame beam 30. The two ends of the frame crossbeam 20 are connected to the front frame beam 10 and the rear frame beam 30, respectively. This can optimize the arrangement of various modules on the front subframe, optimize the overall vehicle weight distribution, and achieve vehicle lightweighting. The frame crossbeam 20 is equipped with an energy-absorbing unit 40, which helps to improve the overall strength and rigidity of the vehicle, increase the crumple zone at the front of the vehicle body, reduce the crushing damage to various modules when the front structure of the vehicle body undergoes frontal collision crumple deformation, and improve the energy absorption effect.

[0043] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A front subframe structure suitable for electric vehicles, characterized in that, The vehicle includes a front frame beam (10), a frame crossbeam (20), and a frame rear beam (30). The two ends of the frame crossbeam (20) are connected to the front frame beam (10) and the frame rear beam (30) respectively. An energy-absorbing unit (40) is provided on the frame crossbeam (20). The frame crossbeam (20) includes a left crossbeam (21) and a right crossbeam (22). The two ends of the left crossbeam (21) are connected to the front frame beam (10) and the frame rear beam (30) respectively. The two ends of the right crossbeam (22) are connected to the front frame beam (10) and the frame rear beam (30) respectively. A first support plate (23) is provided between the left crossbeam (21) and the front beam of the frame (10), and a second support plate (24) is provided between the right crossbeam (22) and the front beam of the frame (10). The energy absorption unit (40) includes a first induced deformation hole (41), a second induced deformation hole (42) and a third induced deformation hole (43) provided on the left crossbeam (21). The energy absorption unit (40) also includes a fourth induced deformation hole (44), a fifth induced deformation hole (45) and a sixth induced deformation hole (46) provided on the right crossbeam (22).

2. The front subframe structure for electric vehicles according to claim 1, characterized in that, The left crossbeam (21) has a first bolt connection hole (211) at one end near the front beam (10) of the frame, and the right crossbeam (22) has a second bolt connection hole (221) at one end near the front beam (10) of the frame; the left crossbeam (21) has a first bolt connection base (212) at one end near the front beam (10) of the frame, and the right crossbeam has a second bolt connection base (222) at one end near the front beam (10) of the frame.

3. The front subframe structure for electric vehicles according to claim 2, characterized in that, The front beam (10) of the frame is provided with front beam connecting seats (11) at both ends, and the rear beam (30) of the frame is provided with rear beam connecting seats (31) at both ends.

4. The front subframe structure for electric vehicles according to claim 3, characterized in that, The left crossbeam (21) is provided with a first support base (213), and the right crossbeam (22) is provided with a second support base (223); the left crossbeam (21) is provided with a first steering gear with a tie rod connecting base (214), and the right crossbeam (22) is provided with a second steering gear with a tie rod connecting base (224).

5. The front subframe structure for electric vehicles according to claim 4, characterized in that, The front beam (10) and the rear beam (30) of the frame are provided with powertrain support seats (50).

6. The front subframe structure for electric vehicles according to claim 5, characterized in that, An air conditioning system support seat (60) is provided on the rear beam (30) of the frame.

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