A front wheel arch assembly and front compartment structure for a non-load-bearing body

Abstract

This invention belongs to the field of vehicle engineering technology, specifically relating to a front wheel arch assembly and front compartment structure for a non-load-bearing body. The aforementioned front wheel arch assembly includes two symmetrically arranged front wheel arch units. Each front wheel arch unit includes a fender inner panel assembly, a wheel arch upper side beam assembly, and a pillar. The fender inner panel assembly is located on the outside of the wheel arch upper side beam assembly in the left-right direction of the body. The front ends of both the fender inner panel assembly and the wheel arch upper side beam assembly are fixedly connected to the pillar. The rear ends of both the fender inner panel assembly and the wheel arch upper side beam assembly are fixedly connected to the A-pillar of the body. The pillar is fixedly connected to the front crossbeam assembly of the body. By setting the pillar, the fender inner panel assembly, and the wheel arch upper side beam assembly, the front compartment structure of the non-load-bearing body equipped with the front wheel arch assembly of this invention can form two collision force transmission channels in the front-rear direction on both the left and right sides.

Description

Technical Field

[0001] This invention belongs to the field of vehicle engineering technology, specifically relating to a front wheel arch assembly and front compartment structure for a non-load-bearing body. Background Technology

[0002] Body-on-frame construction, due to its superior torsional rigidity and load-bearing capacity, is widely used in off-road vehicles, trucks, buses, and other vehicles that need to withstand significant weight and impact. The main structure of a body-on-frame construction includes an independent chassis beam and the body suspended above it. The chassis beam is typically made of high-strength steel, while the body is flexibly connected to the chassis beam via rubber bushings or springs. This design allows the chassis beam to withstand most of the impacts and loads, while the body primarily bears the weight of passengers and cargo. This design concentrates road impacts on the chassis beam, while the body, connected to the chassis beam via rubber shock-absorbing bearings, can only transfer a small portion of the load. This design results in the chassis beam bearing the majority of the load under heavy loads.

[0003] In existing technologies, chassis beams are made of high-strength steel, while the body itself uses relatively soft materials to provide better comfort and shock absorption. As a result, compared to unibody construction, the front compartment structure of existing non-unibody vehicles typically has poor energy absorption in a collision, with more collision energy being transferred to the passenger compartment. With the rapid development of vehicle technology, the requirements for the collision safety performance of the front compartment structure of non-unibody vehicles are becoming increasingly stringent, which makes the problems of poor energy absorption and insufficient collision safety performance of the existing non-unibody vehicle front compartment structure even more prominent. Summary of the Invention

[0004] To address the shortcomings of the prior art, the present invention provides a front wheel arch assembly and front compartment structure for a non-load-bearing vehicle body to solve the technical problems of poor energy absorption and insufficient collision safety performance of the existing front compartment structure of non-load-bearing vehicles.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows:

[0006] A non-load-bearing body front wheel arch assembly includes two front wheel arch units symmetrically arranged on the left and right sides; each front wheel arch unit includes a fender inner panel assembly, a wheel arch upper side beam assembly, and a pillar.

[0007] The inner fender assembly is located on the outside of the upper wheel arch beam assembly in the left-right direction of the vehicle body, and the front ends of both the inner fender assembly and the upper wheel arch beam assembly are fixedly connected to the pillar.

[0008] The rear ends of both the inner fender panel assembly and the upper wheel arch beam assembly are used for fixed connection with the A-pillar of the vehicle body.

[0009] The column is used for fixed connection with the front crossbeam assembly of the vehicle body.

[0010] By setting the pillar, the front ends of the fender inner panel assembly and the wheel arch upper side beam assembly are fixedly connected to the pillar, and the rear ends of the fender inner panel assembly and the wheel arch upper side beam assembly are fixedly connected to the A-pillar of the vehicle body. This allows the front compartment structure of the non-load-bearing vehicle body equipped with the front wheel arch assembly of the non-load-bearing vehicle body provided by the present invention to form two front-to-back collision force transmission channels on both the left and right sides (one collision force transmission channel is formed by the fender inner panel assembly, and the other collision force transmission channel is formed by the wheel arch upper side beam assembly). Compared with the existing non-load-bearing vehicle body front compartment structure, which only forms one front-to-back collision force transmission channel on both the left and right sides (usually only formed by the wheel arch upper side beam), this is beneficial for the transmission of force during a frontal collision and improves the safety of the passenger compartment. It solves the technical problems of poor energy absorption and insufficient collision safety performance of the existing non-load-bearing vehicle body front compartment structure.

[0011] Based on the non-load-bearing body front wheel arch assembly provided by the present invention, the present invention also provides a non-load-bearing body front compartment structure, including a front crossbeam assembly and the non-load-bearing body front wheel arch assembly provided by the present invention.

[0012] The front crossbeam assembly is fixedly installed between the two pillars of the front wheel arch assembly.

[0013] Furthermore, the front crossbeam assembly includes a first reinforcing beam and a water tank mounting crossbeam assembly arranged sequentially from top to bottom;

[0014] Both the first reinforcing beam and the water tank mounting beam assembly are fixedly installed between the two columns;

[0015] The water tank mounting beam assembly is used to install the water tank and the water tank frame;

[0016] The first reinforcing beam and the water tank mounting beam assembly are arranged sequentially from rear to front in the front-rear direction of the vehicle body.

[0017] By setting the first reinforcing beam, the front compartment structure of the non-load-bearing body provided by the present invention can obtain an additional collision force transmission channel in the left and right directions through the first reinforcing beam compared with the existing front compartment structure of the non-load-bearing body. This enhances the energy absorption effect of the front compartment structure of the non-load-bearing body, improves the collision safety performance, and can further protect the automotive components installed in the front compartment.

[0018] Furthermore, the water tank mounting beam assembly includes an upper water tank beam and a lower water tank beam arranged sequentially from top to bottom;

[0019] Both the upper crossbeam and the lower crossbeam of the water tank are fixedly installed between the two columns.

[0020] An engine hood lock is provided in the middle of the upper side of the upper crossbeam of the water tank. The upper crossbeam of the water tank is used to install the water tank frame. The lower crossbeam of the water tank is used to fix it to the bottom of the water tank.

[0021] Furthermore, the upper crossbeam and the lower crossbeam of the water tank are arranged sequentially from back to front in the front-rear direction of the vehicle body;

[0022] A set of energy-absorbing boxes is provided on the rear side of both ends of the lower crossbeam of the water tank. The two ends of the lower crossbeam of the water tank are respectively fixedly connected to the front side of the column on the same side through the corresponding energy-absorbing boxes.

[0023] The upper sides of both sets of energy-absorbing boxes are used for fixed connection with the bottom of the water tank.

[0024] By utilizing the energy-absorbing box to absorb collision energy through deformation, a low-speed collision deformation zone is formed at the front of the vehicle body. This reduces the energy transferred to other parts of the vehicle body during a frontal collision and completely absorbs collision energy during a low-speed frontal collision to protect other body structures, greatly reducing maintenance costs.

[0025] Furthermore, the water tank mounting beam assembly also includes two connecting brackets; one of the connecting brackets is fixedly connected to each of the left and right ends of the lower water tank beam.

[0026] The connecting bracket is disposed on the outside of the energy-absorbing box on the same side in the left-right direction of the vehicle body;

[0027] The connecting bracket is used for fixed connection with the column.

[0028] By setting a connecting bracket on the outer side of each of the two energy-absorbing boxes and connecting the column and the lower crossbeam of the water tank with the connecting bracket, the connection strength between the lower crossbeam of the water tank and the column can be guaranteed while a deformation zone for low-speed collision is formed at the front of the vehicle body, thereby ensuring that the energy-absorbing box and the lower crossbeam of the water tank can stably support the water tank.

[0029] Furthermore, the water tank mounting beam assembly also includes an engine hood lock support frame, the upper end of which is fixedly connected to the middle of the lower side of the upper beam of the water tank, and the lower end of the engine hood lock is fixedly connected to the middle of the lower beam of the water tank.

[0030] Furthermore, the front compartment structure of the non-load-bearing body also includes two diagonal bracing tube beams that are symmetrically arranged on the left and right sides and are fixedly connected to the first reinforcing beam.

[0031] One end of the diagonal bracing tube beam is fixedly connected to the first reinforcing beam, and the other end of the diagonal bracing tube beam is fixedly connected to the column on the same side.

[0032] By setting the diagonal bracing tube beam, the strength of the first reinforcing beam can be improved, which can better protect the automotive components installed in the front compartment.

[0033] Furthermore, a radiator mounting bracket is fixedly connected to the first reinforcing beam, and the radiator mounting bracket is used to fix and install the water tank radiator.

[0034] Furthermore, the front compartment structure of the non-load-bearing body also includes a front bulkhead assembly, which is fixedly installed between the two A-pillars of the body.

[0035] Furthermore, the front bulkhead assembly includes an upper front bulkhead and a lower front bulkhead, with the lower end of the upper front bulkhead fixedly connected to the upper end of the lower front bulkhead.

[0036] A second reinforcing beam extending vertically is provided on the front side of the lower front panel, and the second reinforcing beam is welded to the front side of the lower front panel.

[0037] Existing non-load-bearing vehicle bodies typically have a front bulkhead crossbeam between the upper and lower front bulkhead panels. However, since non-load-bearing vehicle bodies do not require many force transmission paths, the front compartment structure of the non-load-bearing vehicle body provided by this invention eliminates the front bulkhead crossbeam, effectively reducing the weight of the front compartment structure. Simultaneously, since the front bulkhead assembly typically also houses components such as electrical controllers, water pipes, brake lines, high and low voltage wiring harnesses, sound insulation pads, carpets, and supports such as cabin wiring harness brackets, instrument panel mounting brackets, adjustment mounting brackets, controller mounting brackets, and cooling water pipe mounting brackets, the second reinforcing beam effectively ensures the stability of the front bulkhead assembly in supporting these components and brackets. In the event of a vehicle collision, the front bulkhead assembly can absorb and disperse some of the collision energy, reducing the impact on the passenger compartment and improving vehicle safety. Attached Figure Description

[0038] To more clearly illustrate the technical solution of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the structure of the left front wheel arch unit of the non-load-bearing body front wheel arch assembly in the embodiment. Figure 1 ;

[0040] Figure 2 This is a schematic diagram of the structure of the left front wheel arch unit of the non-load-bearing body front wheel arch assembly in the embodiment. Figure 2 ;

[0041] Figure 3 This is a schematic diagram of the front compartment structure of the non-load-bearing vehicle body in the embodiment. Figure 1 ;

[0042] Figure 4 This is a schematic diagram of the front compartment structure of the non-load-bearing vehicle body in the embodiment. Figure 2 ;

[0043] Figure 5 This is a schematic diagram of the structure of the lower crossbeam of the water tank in the embodiment;

[0044] Figure 6 This is a schematic diagram of the assembly structure of the engine hood lock support frame and the water tank upper crossbeam in the embodiment;

[0045] Figure 7 This is a schematic diagram of the structure of the first reinforcing beam in the embodiment;

[0046] Figure 8 This is a schematic diagram of the structure of the upper front panel in the embodiment;

[0047] Figure 9 This is a schematic diagram of the structure of the lower front baffle in the embodiment. Figure 1 ;

[0048] Figure 10 This is a schematic diagram of the structure of the lower front baffle in the embodiment. Figure 2 ;

[0049] Among them, 1—left front wheel arch unit, 2—right front wheel arch unit, 3—A-pillar, 4—front crossbeam assembly, 5—front bulkhead assembly;

[0050] 1.1—Fender inner panel assembly; 1.2—Wheel cover upper side beam assembly; 1.3—Column;

[0051] 4.1—First reinforcing beam; 4.2—Upper crossbeam of water tank; 4.3—Lower crossbeam of water tank; 4.4—Hood lock; 4.5—Energy absorption box; 4.6—Connecting bracket; 4.7—Hood lock support frame; 4.8—Diagonal brace tube beam; 4.9—Radiator mounting bracket; 5.1—Upper front panel baffle; 5.2—Lower front panel baffle; 5.3—Second reinforcing beam. Detailed Implementation

[0052] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0053] Example 1:

[0054] like Figures 1 to 2 As shown, Embodiment 1 provides a front wheel arch assembly for a non-load-bearing vehicle body, including two front wheel arch units (including a left front wheel arch unit 1 and a right front wheel arch unit 2) arranged symmetrically on the left and right sides; the front wheel arch unit includes a fender inner panel assembly 1.1, a wheel arch upper side beam assembly 1.2 and a pillar 1.3;

[0055] The inner fender assembly 1.1 is located on the outside of the upper wheel arch beam assembly 1.2 in the left-right direction of the vehicle body. The front ends of both the inner fender assembly 1.1 and the upper wheel arch beam assembly 1.2 are fixedly connected to the pillar 1.3.

[0056] The rear ends of the inner fender panel assembly 1.1 and the upper wheel arch beam assembly 1.2 are both used for fixed connection with the A-pillar 3 of the vehicle body;

[0057] The column 1.3 is used for fixed connection with the front crossbeam assembly 4 of the vehicle body.

[0058] By setting up a pillar 1.3, the front ends of the fender inner panel assembly 1.1 and the wheel arch upper side beam assembly 1.2 are fixedly connected to the pillar 1.3, and the rear ends of the fender inner panel assembly 1.1 and the wheel arch upper side beam assembly 1.2 are fixedly connected to the A-pillar 3 of the vehicle body. This allows the front compartment structure of the non-load-bearing body equipped with the front wheel arch assembly of the non-load-bearing body provided by this invention to form two front-to-back collision force transmission channels on both the left and right sides (one collision force transmission channel is formed by the fender inner panel assembly 1.1, and the other collision force transmission channel is formed by the wheel arch upper side beam assembly 1.2). Compared with the existing non-load-bearing body front compartment structure, which only forms one front-to-back collision force transmission channel on both the left and right sides (usually only formed by the wheel arch upper side beam), this is beneficial for the transmission of force during a frontal collision and improves the safety of the passenger compartment. It solves the technical problems of poor energy absorption and insufficient collision safety performance of the existing non-load-bearing body front compartment structure.

[0059] Example 2:

[0060] like Figure 3 and Figure 4 As shown, based on the non-load-bearing body front wheel arch assembly provided in Embodiment 1, Embodiment 2 provides a non-load-bearing body front compartment structure, including a front crossbeam assembly 4 and the non-load-bearing body front wheel arch assembly provided by the present invention;

[0061] The front crossbeam assembly 4 is fixedly installed between the two pillars 1.3 of the front wheel arch assembly.

[0062] In one embodiment, such as Figures 3 to 7 As shown, the front crossbeam assembly 4 includes a first reinforcing beam 4.1 and a water tank mounting crossbeam assembly arranged sequentially from top to bottom;

[0063] The first reinforcing beam 4.1 and the water tank mounting beam assembly are both fixedly installed between the two columns 1.3;

[0064] The water tank mounting beam assembly is used to install the water tank and water tank frame;

[0065] The first reinforcing beam 4.1 and the water tank mounting beam assembly are arranged sequentially from rear to front in the front-rear direction of the vehicle body.

[0066] By setting the first reinforcing beam 4.1, the front compartment structure of the non-load-bearing body provided by the present invention can obtain an additional collision force transmission channel in the left and right directions through the first reinforcing beam 4.1 compared with the existing front compartment structure of the non-load-bearing body, thereby enhancing the energy absorption effect of the front compartment structure of the non-load-bearing body, improving the collision safety performance, and further protecting the automotive components installed in the front compartment.

[0067] In one embodiment, such as Figures 3 to 7 As shown, the water tank mounting beam assembly includes an upper water tank beam 4.2 and a lower water tank beam 4.3 arranged sequentially from top to bottom;

[0068] The upper crossbeam 4.2 and the lower crossbeam 4.3 of the water tank are both fixedly installed between the two columns 1.3;

[0069] An engine hood lock 4.4 is provided in the middle of the upper side of the upper crossbeam 4.2 of the water tank. The upper crossbeam 4.2 of the water tank is used to install the water tank frame; the lower crossbeam 4.3 of the water tank is used to fix it to the bottom of the water tank.

[0070] In one embodiment, such as Figures 3 to 5 As shown, the upper crossbeam 4.2 and the lower crossbeam 4.3 of the water tank are arranged sequentially from back to front in the front-rear direction of the vehicle body;

[0071] A set of energy-absorbing boxes 4.5 are respectively installed on the rear side of both ends of the lower crossbeam 4.3 of the water tank. Both ends of the lower crossbeam 4.3 of the water tank are fixedly connected to the front side of the column 1.3 on the same side through the corresponding energy-absorbing boxes 4.5.

[0072] The upper sides of both sets of energy-absorbing boxes 4.5 are used for fixed connection to the bottom of the water tank.

[0073] By utilizing the energy-absorbing box 4.5 to absorb collision energy through deformation, a low-speed collision deformation zone is formed at the front of the vehicle body. This reduces the energy transferred to other parts of the vehicle body during a frontal collision and completely absorbs collision energy during a low-speed frontal collision to protect other body structures, greatly reducing maintenance costs.

[0074] In one embodiment, such as Figure 7As shown, the water tank mounting beam assembly also includes two connecting brackets 4.6; a connecting bracket 4.6 is fixedly connected to each of the left and right ends of the lower water tank beam 4.3;

[0075] The connecting bracket 4.6 is located on the outside of the energy-absorbing box 4.5 on the same side of the vehicle body in the left-right direction;

[0076] The connecting bracket 4.6 is used for fixed connection with the column 1.3.

[0077] By setting a connecting bracket 4.6 on the outside of each of the two energy-absorbing boxes 4.5, and using the connecting bracket 4.6 to connect the column 1.3 and the lower crossbeam 4.3 of the water tank, the connection strength between the lower crossbeam 4.3 of the water tank and the column 1.3 can be guaranteed while a deformation zone for low-speed collisions is formed at the front of the vehicle body. This ensures that the energy-absorbing box 4.5 and the lower crossbeam 4.3 of the water tank can stably support the water tank.

[0078] Preferably, in this embodiment 2, as Figures 3 to 6 As shown, the water tank mounting beam assembly also includes an engine hood lock support bracket 4.7. The upper end of the engine hood lock support bracket 4.7 is fixedly connected to the middle of the lower side of the upper water tank beam 4.2, and the lower end of the engine hood lock 4.4 is fixedly connected to the middle of the lower water tank beam 4.3.

[0079] Preferably, in this embodiment 2, as Figure 3 , Figure 4 and Figure 7 As shown, the front compartment structure of the non-load-bearing body also includes two diagonal bracing tube beams 4.8 that are symmetrically arranged on the left and right sides and are fixedly connected to the first reinforcing beam 4.1;

[0080] One end of the diagonal bracing tube beam 4.8 is fixedly connected to the first reinforcing beam 4.1, and the other end of the diagonal bracing tube beam 4.8 is fixedly connected to the column 1.3 on the same side.

[0081] By setting the diagonal bracing tube beam 4.8, the strength of the first reinforcing beam 4.1 can be improved, which can better protect the automotive components installed in the front compartment.

[0082] Preferably, in this embodiment 2, as Figure 7 As shown, a radiator mounting bracket 4.9 is fixedly connected to the first reinforcing beam 4.1. The radiator mounting bracket 4.9 is used to fix and install the water tank radiator.

[0083] In one embodiment, such as Figure 3 , Figure 4 , Figure 8 , Figure 9 and Figure 10 As shown, the front compartment structure of the non-load-bearing body also includes a front bulkhead assembly 5, which is fixedly installed between the two A-pillars 3 of the body.

[0084] Preferably, in this embodiment 2, as Figures 8 to 10 As shown, the front bulkhead assembly 5 includes an upper front bulkhead 5.1 and a lower front bulkhead 5.2, with the lower end of the upper front bulkhead 5.1 fixedly connected to the upper end of the lower front bulkhead 5.2.

[0085] A second reinforcing beam 5.3 extending vertically is provided on the front side of the lower front panel 5.2, and the second reinforcing beam 5.3 is welded to the front side of the lower front panel 5.2.

[0086] In existing non-load-bearing vehicle bodies, a front bulkhead crossbeam is typically installed between the upper front bulkhead 5.1 and the lower front bulkhead 5.2. However, since the front bulkhead of a non-load-bearing vehicle body does not require many force transmission paths, the front compartment structure of the non-load-bearing vehicle body provided by this invention eliminates the front bulkhead crossbeam, effectively reducing the weight of the front compartment structure. Simultaneously, since the front bulkhead assembly 5 typically also houses components such as electrical controllers, water pipes, brake lines, high and low voltage wiring harnesses, sound insulation pads, carpets, as well as supports for cabin wiring harness brackets, instrument panel mounting brackets, adjustment mounting brackets, controller mounting brackets, and cooling water pipe mounting brackets, the second reinforcing beam 5.3 effectively ensures the stability of the front bulkhead assembly 5 in supporting these components and supports. During a vehicle collision, the front bulkhead assembly 5 can absorb and disperse some of the collision energy, reducing the impact on the passenger compartment and improving vehicle safety.

[0087] The non-load-bearing body front wheel arch assembly and front compartment structure provided by the present invention have at least the following technical effects or advantages:

[0088] 1. By setting up a pillar 1.3, the front ends of the fender inner panel assembly 1.1 and the wheel arch upper side beam assembly 1.2 are fixedly connected to the pillar 1.3, and the rear ends of the fender inner panel assembly 1.1 and the wheel arch upper side beam assembly 1.2 are fixedly connected to the A-pillar 3 of the vehicle body. This allows the front compartment structure of the non-load-bearing vehicle body equipped with the front wheel arch assembly of the non-load-bearing vehicle body provided by this invention to form two front-to-back collision force transmission channels on both the left and right sides (one collision force transmission channel is formed by the fender inner panel assembly 1.1, and the other collision force transmission channel is formed by the wheel arch upper side beam assembly 1.2). Compared with the existing non-load-bearing vehicle body front compartment structure, which only forms one front-to-back collision force transmission channel on both the left and right sides (usually only formed by the wheel arch upper side beam), this is beneficial for the transmission of force during a frontal collision and improves the safety of the passenger compartment. It solves the technical problems of poor energy absorption effect and insufficient collision safety performance of the existing non-load-bearing vehicle body front compartment structure.

[0089] 2. By setting the first reinforcing beam 4.1, the front compartment structure of the non-load-bearing body provided by the present invention can obtain an additional collision force transmission channel in the left and right directions through the first reinforcing beam 4.1 compared with the existing front compartment structure of the non-load-bearing body, thereby enhancing the energy absorption effect of the front compartment structure of the non-load-bearing body, improving the collision safety performance, and further protecting the automotive components installed in the front compartment.

[0090] 3. By utilizing the energy-absorbing box 4.5 to absorb collision energy through deformation, a low-speed collision deformation zone is formed at the front of the vehicle body. This reduces the energy transferred to other parts of the vehicle body during a frontal collision and completely absorbs collision energy during a low-speed frontal collision to protect other body structures, greatly reducing maintenance costs.

[0091] 4. By setting a connecting bracket 4.6 on the outside of each of the two energy-absorbing boxes 4.5, and using the connecting bracket 4.6 to connect the column 1.3 and the lower crossbeam 4.3 of the water tank, the connection strength between the lower crossbeam 4.3 of the water tank and the column 1.3 can be guaranteed while a deformation zone for low-speed collision is formed at the front of the vehicle body. This ensures that the energy-absorbing box 4.5 and the lower crossbeam 4.3 of the water tank can stably support the water tank.

[0092] 5. By setting the diagonal bracing tube beam 4.8, the strength of the first reinforcing beam 4.1 can be improved, which can better protect the automotive parts installed in the front compartment.

[0093] 6. Existing non-load-bearing body structures typically have a front bulkhead crossbeam between the upper front bulkhead 5.1 and the lower front bulkhead 5.2. However, since non-load-bearing body structures do not require many force transmission paths, the front compartment structure of the non-load-bearing body provided by this invention eliminates the front bulkhead crossbeam, effectively reducing the weight of the front compartment structure. Simultaneously, since the front bulkhead assembly 5 typically also houses electrical controllers, water pipes, brake pipes, high and low voltage wiring harnesses, sound insulation pads, carpets, and other components, as well as brackets for cabin wiring harnesses, instrument panel mounting brackets, adjustment mounting brackets, controller mounting brackets, and cooling water pipe mounting brackets, the second reinforcing beam 5.3 effectively ensures the stability of the front bulkhead assembly 5 in supporting these components and brackets. During a vehicle collision, the front bulkhead assembly 5 can absorb and disperse some of the collision energy, reducing the impact on the passenger compartment and improving vehicle safety.

[0094] The above are merely specific application examples of the present invention and do not constitute any limitation on the scope of protection of the present invention. All technical solutions formed by equivalent transformation or equivalent substitution fall within the scope of protection of the present invention.

Claims

1. A front wheel arch assembly for a non-load-bearing vehicle body, characterized in that, It includes two front wheel arch units arranged symmetrically on the left and right sides; each front wheel arch unit includes a fender inner panel assembly, a wheel arch upper beam assembly, and a pillar. The inner fender assembly is located on the outside of the upper wheel arch beam assembly in the left-right direction of the vehicle body, and the front ends of both the inner fender assembly and the upper wheel arch beam assembly are fixedly connected to the pillar. The rear ends of both the inner fender panel assembly and the upper wheel arch beam assembly are used for fixed connection with the A-pillar of the vehicle body. The column is used for fixed connection with the front crossbeam assembly of the vehicle body.

2. A front compartment structure for a non-load-bearing vehicle body, characterized in that: Includes the front crossbeam assembly and the front wheel arch assembly of the non-load-bearing body as described in claim 1; The front crossbeam assembly is fixedly installed between the two pillars of the front wheel arch assembly.

3. The front compartment structure of the non-load-bearing vehicle body according to claim 2, characterized in that: The front crossbeam assembly includes a first reinforcing beam and a water tank mounting crossbeam assembly arranged sequentially from top to bottom; Both the first reinforcing beam and the water tank mounting beam assembly are fixedly installed between the two columns; The water tank mounting beam assembly is used to install the water tank and the water tank frame; The first reinforcing beam and the water tank mounting beam assembly are arranged sequentially from rear to front in the front-rear direction of the vehicle body.

4. The front compartment structure of the non-load-bearing vehicle body according to claim 3, characterized in that: The water tank mounting beam assembly includes an upper water tank beam and a lower water tank beam arranged sequentially from top to bottom. Both the upper crossbeam and the lower crossbeam of the water tank are fixedly installed between the two columns. An engine hood lock is provided in the middle of the upper side of the upper crossbeam of the water tank. The upper crossbeam of the water tank is used to install the water tank frame. The lower crossbeam of the water tank is used to fix it to the bottom of the water tank.

5. The front compartment structure of the non-load-bearing vehicle body according to claim 4, characterized in that: The upper crossbeam and the lower crossbeam of the water tank are arranged sequentially from back to front in the front-rear direction of the vehicle body; A set of energy-absorbing boxes is provided on the rear side of both ends of the lower crossbeam of the water tank. The two ends of the lower crossbeam of the water tank are respectively fixedly connected to the front side of the column on the same side through the corresponding energy-absorbing boxes. The upper sides of both sets of energy-absorbing boxes are used for fixed connection with the bottom of the water tank.

6. The front compartment structure of the non-load-bearing vehicle body according to claim 5, characterized in that: The water tank mounting beam assembly also includes two connecting brackets; one of the connecting brackets is fixedly connected to each of the left and right ends of the lower water tank beam. The connecting bracket is disposed on the outside of the energy-absorbing box on the same side in the left-right direction of the vehicle body; The connecting bracket is used for fixed connection with the column.

7. The front compartment structure of the non-load-bearing vehicle body according to claim 4, characterized in that: The water tank mounting beam assembly also includes an engine hood lock support frame, the upper end of which is fixedly connected to the middle of the lower side of the upper beam of the water tank, and the lower end of the engine hood lock is fixedly connected to the middle of the lower beam of the water tank.

8. The front compartment structure of the non-load-bearing vehicle body according to claim 3, characterized in that: The front compartment structure of the non-load-bearing body also includes two diagonal bracing tube beams that are symmetrically arranged on the left and right sides and fixedly connected to the first reinforcing beam. One end of the diagonal bracing tube beam is fixedly connected to the first reinforcing beam, and the other end of the diagonal bracing tube beam is fixedly connected to the column on the same side.

9. The front compartment structure of the non-load-bearing vehicle body according to claim 2, characterized in that: The front compartment structure of the non-load-bearing body also includes a front bulkhead assembly, which is fixedly installed between the two A-pillars of the body.

10. The front compartment structure of the non-load-bearing vehicle body according to claim 9, characterized in that: The front bulkhead assembly includes an upper front bulkhead and a lower front bulkhead, with the lower end of the upper front bulkhead fixedly connected to the upper end of the lower front bulkhead. A second reinforcing beam extending vertically is provided on the front side of the lower front panel, and the second reinforcing beam is welded to the front side of the lower front panel.

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