New energy vehicle chassis integrated with electric cabin

Abstract

The new energy vehicle chassis of the integrated electric cabin comprises a first vertical beam, a first cross beam, a second vertical beam and a second cross beam which are connected end to end, a front beam extending forwards is arranged on the first cross beam, the projection of the front beam on the first cross beam is located between the first vertical beam and the second vertical beam, and a supporting beam is connected between the first cross beam and the second cross beam; the supporting beam is arranged along the front beam to bear the axial load of the front beam, the electric cabin is fixedly connected with the first vertical beam and the second vertical beam and erected on the supporting beam, a plug board is fixed to the supporting beam, and the plug board and the electric cabin are connected in an inserted mode to take electricity. The new energy vehicle has the advantages that when the new energy vehicle is impacted by a large impact force, the new energy vehicle is integrally powered off, the problem that the new energy vehicle is on fire due to short circuit of a line is avoided, and the rescue efficiency and safety of the new energy vehicle are improved when a traffic accident occurs.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicle chassis, and in particular to a new energy vehicle chassis with an integrated electrical cabin. Background Art

[0002] New energy vehicles usually use batteries as power sources. The batteries are arranged on the upper side of the new energy vehicle chassis and can simultaneously serve as counterweights to improve the running stability of the new energy vehicle.

[0003] For example, in a Chinese patent document, a chassis assembly of an electric commercial vehicle disclosed on November 12, 2024 with a patent number of CN2024112283912, in which a middle frame is connected between a front frame and a rear frame. The front frame is located in front of the middle frame, and the rear frame is located behind the middle frame. The middle frame and the rear frame are at the same vertical height, and the vertical height of the front frame is lower than that of the middle frame. The electric commercial vehicle includes a cab fixedly installed on the front frame, and a power battery pack fixedly installed on the middle frame and located below the middle frame. With such an arrangement, the main frame adopts a stepped structure with the front part lower and the rear part higher. The cab is arranged on the front frame, and the power battery pack is hung under the middle frame, effectively reducing the center of gravity of the whole vehicle, reducing the risk of rollover, and improving safety performance.

[0004] The deficiencies of the prior art are as follows: When a new energy vehicle is impacted by a large impact force in a car accident, the battery is connected. Due to a short circuit in the circuit, it is easy to catch fire, and it is not easy to rescue compared with traditional fuel vehicles. Summary of the Invention

[0005] In order to overcome the above deficiencies of the prior art, the present invention provides a new energy vehicle chassis with an integrated electrical cabin, which is not easy to catch fire even when the vehicle body is deformed when the vehicle is impacted by a large impact force, improving the rescue efficiency and safety.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions.

[0007] A new energy vehicle chassis with an integrated electrical cabin includes a first longitudinal beam, a first cross beam, a second longitudinal beam, and a second cross beam connected end to end. A front beam extending forward is provided on the first cross beam, and the projection of the front beam on the first cross beam is located between the first longitudinal beam and the second longitudinal beam. A support beam is connected between the first cross beam and the second cross beam and is arranged along the front beam to bear the axial load of the front beam. The electrical cabin is fixedly connected to the first longitudinal beam and the second longitudinal beam and is erected on the support beam. An electric plug board is fixed on the support beam, and the electric plug board and the electrical cabin are plugged and unplugged to obtain power. Plugging and unplugging the electric plug board and the electrical cabin to obtain power means that the electric plug board and the electrical cabin are connected in a pluggable and unplugable manner along the front-rear direction to obtain power.

[0008] When a vehicle is rear-ended or impacted at high speed, it is usually subjected to an impact force from the front to the back. When the front side of the new energy vehicle chassis disclosed in this application is impacted, the front beam transmits the impact force backward, and a relatively large force is transmitted to the support beam. During this process, the rod structures of the first cross beam and the second cross beam are more likely to deform compared to the front beam and the support beam. When the first cross beam and the second cross beam deform backward, the support beam moves backward relative to the first longitudinal beam and the second longitudinal beam, causing the plug-in board and the battery compartment to be disconnected, thus cutting off the power supply of the entire new energy vehicle and avoiding the problem of new energy vehicle fires due to short circuits in the lines, improving the rescue efficiency and safety of new energy vehicles in the event of a car accident.

[0009] Preferably, the second cross beam is provided with an inwardly concave deformation-prone area on the side facing away from the support beam. This weakens the strength of the second cross beam to a certain extent, enhancing the directional deformation ability of the second cross beam. The setting of the deformation-prone area facilitates the change in the position of the support beam relative to the battery compartment, improving the safety performance of the new energy vehicle.

[0010] Preferably, there are two spaced front beams, and a front cross beam is connected to the front ends of the two front beams. The two front beams cooperate with the front cross beam to form the front-end structure of the new energy vehicle chassis, with reliable load-bearing capacity and impact resistance. When the impact force is not sufficient to cause chassis deformation, minor collisions will not affect the structural stability of the chassis.

[0011] Preferably, two rear beams extending backward are provided on the second cross beam, and the two rear beams are axially corresponding to the first longitudinal beam and the second longitudinal beam respectively. The rear beams form the rear-end structure of the new energy vehicle chassis, ensuring the load-bearing capacity of the chassis.

[0012] Preferably, the battery compartment includes a cabin body and a mounting bracket. The mounting bracket is connected to the first longitudinal beam and the second longitudinal beam, the cabin body is fixedly connected to the mounting bracket, and the mounting bracket is erected on the support beam. The connection between the battery compartment and the first longitudinal beam and the second longitudinal beam is achieved through the mounting bracket. The mounting bracket is erected on the support beam and they are not fixed, which can ensure the sliding ability of the support beam relative to the battery compartment.

[0013] Preferably, the mounting bracket is provided with guide grooves that cooperate with the support beam to guide the relative sliding of the mounting bracket and the support beam. By means of the guide grooves cooperating with the support beam, the sliding path of the battery compartment and the support beam is restricted, ensuring the reliable separation of the plug-in board and the battery compartment when the chassis is impacted and moves backward, achieving circuit breakage and ensuring the rescue efficiency.

[0014] Preferably, the plug-in board is vertically connected to the support beam, and a support gusset connecting the support beam is provided on the rear side of the plug-in board. When the battery compartment is installed in place, it is adjacent to or abuts against the plug-in board, and a matching electrical plug is provided between the plug-in board and the battery compartment. This is a setting form of the plug-in board. The setting of the support gusset ensures the structural strength of the plug-in board, and the electrical plug can achieve reliable electrical connection between the plug-in board and the battery compartment, with reliable plug-in board functions.

[0015] Preferably, the support beam includes a first support beam and a second support beam which are arranged in parallel at intervals. The first support beam and the second support beam act together to improve the support strength at the bottom of the chassis and can also reliably arrange the plug-in board.

[0016] Preferably, the front end of the mounting bracket and the first cross beam are arranged at intervals in the axial direction of the support beam to provide a deformation space for the first cross beam. The setting of the deformation space of the first cross beam provides space for the first cross beam to deform under impact. After the first cross beam deforms, it can act on the support beam to deform, realizing the backward power-off of the plug-in board.

[0017] Preferably, the mounting bracket includes a connecting rod and a connecting tray. A number of connecting rods are respectively arranged on both sides of the connecting tray. The number of connecting rods are respectively fixedly connected to the first longitudinal beam and the second longitudinal beam, and the connecting tray and the connecting rods are fixedly connected. The connecting rods cooperate with the support beam to form an overhead structure independent of the first cross beam, the first longitudinal beam, the second cross beam and the second longitudinal beam, and it is difficult to affect the structural stability of the electrical cabin when the vehicle body is laterally impacted, further improving the safety of new energy vehicles.

[0018] After adopting the above scheme, when the new energy vehicle to which the present invention is applied is impacted by a large impact force, the new energy vehicle is powered off as a whole, avoiding the problem of the new energy vehicle catching fire due to a short circuit in the line, and improving the rescue efficiency and safety of the new energy vehicle in the event of a car accident. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of the chassis of a new energy vehicle with an integrated electrical cabin disclosed in the first embodiment of the present invention.

[0020] Figure 2 is Figure 1 an enlarged schematic diagram of the structure at A in

[0021] Figure 3 is Figure 1 a top view of the illustrated embodiment.

[0022] Figure 4 is Figure 1 a schematic structural diagram of the plug-in board in the illustrated embodiment.

[0023] Figure 5 is a schematic structural diagram of the chassis of a new energy vehicle with an integrated electrical cabin disclosed in the second embodiment of the present invention.

[0024] In the figure: the first longitudinal beam 1, the first cross beam 2, the second longitudinal beam 3, the second cross beam 4, the front beam 5, the front cross beam 6, the rear beam 7, the support beam 8, the first support beam 9, the second support beam 10, the electrical cabin 11, the cabin body 12, the mounting bracket 13, the connecting rod 14, the connecting tray 15, the connecting edge 16, the connecting groove 17, the bolt 18, the plug-in board 19, the support angle plate 20, the electrical plug 21, the easily deformable area 22. Detailed implementation manners

[0025] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] The terms "comprising" and "having" and any variations thereof in the description and claims of the present invention are intended to cover non-exclusive inclusion. For example, a method or product comprising a series of technical features does not necessarily limit to those clearly listed technical features, but may also include other technical features that can be included in the method or product and are not clearly listed.

[0027] In the description of the present invention, it should be understood that the technical features defined by the terms "first", "second", etc. with a sequential concept are only for clearly describing the defined technical features, so that the defined technical features can be clearly distinguished from other technical features, rather than being named like this during actual implementation. Therefore, it should not be construed as a limitation to the present invention.

[0028] Embodiment 1 A new energy vehicle chassis with an integrated electric cabin, as Figures 1 to 4 shown, includes a first longitudinal beam 1, a first cross beam 2, a second longitudinal beam 3, and a second cross beam 4 that are connected end to end. The area surrounded by the first longitudinal beam 1, the first cross beam 2, the second longitudinal beam 3, and the second cross beam 4 that are connected end to end is used for overhead installation of the electric cabin 11. The first cross beam 2 is provided with two forwardly extending front beams 5, and the front ends of the two front beams 5 are connected with a front cross beam 6. The projection of the front beam 5 on the first cross beam 2 is located between the first longitudinal beam 1 and the second longitudinal beam 3. The second cross beam 4 is provided with two rear beams 7 extending backward, and the two rear beams 7 are axially aligned with the first longitudinal beam 1 and the second longitudinal beam 3 respectively.

[0029] A support beam 8 is connected between the first cross beam 2 and the second cross beam 4. The support beam 8 includes a first support beam 9 and a second support beam 10 that are arranged in parallel at intervals. The support beam 8 is arranged along the front beam 5 to bear the axial load of the front beam 5. The electrical cabin 11 is fixedly connected to the first longitudinal beam 1 and the second longitudinal beam 3 and is erected on the support beam 8. The electrical cabin 11 includes a cabin body 12 and a mounting bracket 13. The mounting bracket 13 connects the first longitudinal beam 1 and the second longitudinal beam 3. The cabin body 12 is fixedly connected to the mounting bracket 13. The mounting bracket 13 is erected on the support beam 8. A guide groove for cooperating with the support beam 8 is provided on the mounting bracket 13 to guide the relative sliding of the mounting bracket 13 and the support beam 8. The front end of the mounting bracket 13 and the first cross beam 2 are arranged at intervals in the axial direction of the support beam 8 to provide a deformation space for the first cross beam 2. The mounting bracket 13 includes a connecting rod 14 and a connecting tray 15. A plurality of connecting rods 14 are respectively provided on both sides of the connecting tray 15. The plurality of connecting rods 14 are respectively fixedly connected to the first longitudinal beam 1 and the second longitudinal beam 3. The connecting tray 15 is fixedly connected to the connecting rod 14. Specifically, as Figure 1 and Figure 2 shown, two connecting rods 14 are respectively provided on both sides of the connecting tray 15. The two connecting rods 14 on the same side of the connecting tray 15 are arranged at intervals. The connecting rod 14 is fixed to the side surface of the first longitudinal beam 1 or the second longitudinal beam 3 by bolts 18. A connecting edge 16 is provided on the side surface of the connecting tray 15. A plurality of "U"-shaped connecting grooves 17 are provided on the connecting edge 16. After the connecting edge 16 is erected on the connecting rod 14, it is locked with the upper side of the end of the connecting rod 14 through the connecting groove 17. There is a gap between the end of the connecting rod 14 and the side surface of the connecting tray 15, so that although the connecting tray 15 is erected and fixed on the connecting rod 14, it is not completely locked and fixed with the connecting rod 14. When the first longitudinal beam 1 and the second longitudinal beam 3 are deformed, that is, when the side of the new energy vehicle is impacted, the deformation of the first longitudinal beam 1 and the second longitudinal beam 3 is first absorbed by the gap between the connecting rod 14 and the connecting tray 15, and will not directly affect the battery, thereby improving the safety of the side collision of the new energy vehicle.

[0030] An electric plug board 19 is fixed on the support beam 8. The electric plug board 19 is vertically connected to the support beam 8. A support gusset plate 20 for connecting the support beam 8 is provided at the rear side of the electric plug board 19. When the electrical cabin 11 is installed in place, it is adjacent to or abuts against the electric plug board 19. A mating electrical plug 21 is provided between the electric plug board 19 and the electrical cabin 11. The electric plug board 19 and the electrical cabin 11 are plugged to take power. A wire passing hole or a wire passing groove is provided in the support beam 8. The wires connected to the electric plug board 19 are arranged through the wire passing groove.

[0031] When the chassis of the new energy vehicle disclosed in this application is impacted at the front side of the vehicle, the front beam 5 transmits the impact force backward, and a relatively large acting force is transmitted to the support beam 8. In this process, the cross-sectional structures of the first cross beam 2 and the second cross beam 4 are more likely to deform under transverse force than the axial force of the front beam 5 and the support beam 8. When the first cross beam 2 and the second cross beam 4 deform backward, the support beam 8 moves backward relative to the first longitudinal beam 1 and the second longitudinal beam 3, causing the plug-in board 19 and the electrical cabin 11 to be plugged and separated, so that the new energy vehicle is powered off as a whole, avoiding the problem of the new energy vehicle catching fire due to a short circuit in the line, and improving the rescue efficiency and safety of the new energy vehicle when a car accident occurs.

[0032] Embodiment 2, The chassis of the new energy vehicle integrating the electrical cabin 11, as Figure 5 shown. The difference between Embodiment 2 and Embodiment 1 is only that the second cross beam 4 is provided with an inwardly concave deformable area 22 on the side facing away from the support beam 8. The deformable area 22 is an inwardly concave arc groove. By setting the deformable area 22, the strength of the second cross beam 4 is weakened to a certain extent, so that the directional deformation ability of the second cross beam 4 corresponding to the support beam 8 is enhanced. The setting of the deformable area 22 facilitates the change of the position of the support beam 8 relative to the electrical cabin 11, improving the safety performance of the new energy vehicle.

Claims

1. A new energy vehicle chassis with an integrated electrical cabin, characterized in that, It includes a first longitudinal beam, a first cross beam, a second longitudinal beam and a second cross beam that are connected end to end. A front beam extending forward is provided on the first cross beam, and the projection of the front beam on the first cross beam is located between the first longitudinal beam and the second longitudinal beam. A support beam is connected between the first cross beam and the second cross beam, and the support beam is arranged along the front beam to bear the axial load of the front beam. The electrical cabin is fixedly connected to the first longitudinal beam and the second longitudinal beam and is erected on the support beam. An electric plug board is fixed on the support beam, and the electric plug board is plugged and connected to the electrical cabin to draw power.

2. The new energy vehicle chassis of the integrated electric cabin according to claim 1, characterized in that, A concave deformable area is provided on the side of the second cross beam facing away from the support beam.

3. The new energy vehicle chassis of the integrated electronic cabin according to claim 1, characterized in that, There are two spaced front beams, and a front cross beam is connected to the front ends of the two front beams.

4. The new energy vehicle chassis of the integrated electric cabin according to claim 1, characterized in that, Two rear beams extending backward are provided on the second cross beam, and the two rear beams are axially corresponding to the first longitudinal beam and the second longitudinal beam respectively.

5. The new energy vehicle chassis of the integrated electronic cabin according to any one of claims 1 to 4, characterized in that, The electrical cabin includes a cabin body and a mounting bracket. The mounting bracket is connected to the first longitudinal beam and the second longitudinal beam, the cabin body is fixedly connected to the mounting bracket, and the mounting bracket is erected on the support beam.

6. The new energy vehicle chassis of the integrated electronic cabin according to claim 5, characterized in that, A guide groove for cooperating with the support beam is provided on the mounting bracket to guide the relative sliding of the mounting bracket and the support beam.

7. The new energy vehicle chassis of the integrated electric cabin according to any one of claims 1 to 4, characterized in that, The electric plug board is vertically connected to the support beam, a support angle plate connecting the support beam is provided at the rear side of the electric plug board, and when the electrical cabin is installed in place, it is adjacent to or abuts against the electric plug board. A cooperating electrical plug is provided between the electric plug board and the electrical cabin.

8. The new energy vehicle chassis of the integrated electric cabin according to claim 3, characterized in that, The support beam includes a first support beam and a second support beam that are arranged in parallel and spaced apart.

9. The new energy vehicle chassis of the integrated electric cabin according to claim 5, characterized in that, The front end of the mounting bracket and the first cross beam are spaced apart in the axial direction of the support beam to provide a deformation space for the first cross beam.

10. The new energy vehicle chassis of the integrated electric cabin according to claim 5, characterized in that, The mounting bracket includes connecting rods and a connecting tray. A number of connecting rods are respectively provided on both sides of the connecting tray. The number of connecting rods are respectively fixedly connected to the first longitudinal beam and the second longitudinal beam, and the connecting tray is fixedly connected to the connecting rods.

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