Front wheel cover assembly and forecabin structure of non-bearing type vehicle body

Abstract

The invention belongs to the technical field of vehicle engineering, and particularly relates to a front wheel cover assembly and a forecabin structure of a non-bearing type vehicle body. The front wheel cover assembly comprises two front wheel cover units which are symmetrically arranged left and right; the front wheel cover unit comprises a fender inner plate assembly, a wheel cover roof side rail assembly and a stand column. The fender inner plate assembly is arranged on the outer side of the wheel cover roof side rail assembly in the left-right direction of the automobile body, and the front end of the fender inner plate assembly and the front end of the wheel cover roof side rail assembly are both fixedly connected to the stand column. The rear ends of the fender inner plate assembly and the wheel cover roof side rail assembly are both used for being fixedly connected with a column A of an automobile body; the stand column is used for being fixedly connected with a front beam assembly of a vehicle body. By arranging the stand column, the fender inner plate assembly and the wheel cover roof side rail assembly, two collision force transmission channels in the front-back direction can be formed on the left side and the right side of a forecabin structure, provided with the front wheel cover assembly of the non-bearing type vehicle body, of the non-bearing type vehicle body.

Description

Technical Field

[0001] The invention belongs to the technical field of vehicle engineering, and in particular relates to a front wheel cover assembly and a front cabin structure of a non-load-bearing vehicle body. Background Art

[0002] Due to its superior torsional rigidity and load capacity, the non-load-bearing body is widely used in off-road vehicles, trucks, buses and other vehicles that need to withstand large weight and impact. The main structure of the non-load-bearing body includes an independent chassis beam and the body body suspended on it. The chassis beam is usually made of high-strength steel, and the body body is flexibly connected to the chassis beam through rubber pads or springs. This design allows the chassis beam to withstand most of the impact and load, while the body body mainly bears the gravity from passengers and cargo. This design makes the road impact mainly concentrated on the chassis beam, while the body body is connected to the chassis beam through rubber shock-absorbing bearings and can only transfer a small part of the load. This design causes the chassis beam to bear most of the load when it is under heavy load;

[0003] In the prior art, the chassis beam is made of high-strength steel, while the body of the vehicle is made of relatively soft materials to provide better comfort and shock absorption. As a result, the front cabin structure of the existing non-load-bearing body usually has poor energy absorption effect during a collision compared to the load-bearing body, and the collision energy is transferred more to the passenger compartment. With the rapid development of the field of vehicle technology, the requirements for the collision safety performance of the front cabin structure of the non-load-bearing body are getting higher and higher, which also makes the problems of poor energy absorption effect and insufficient collision safety performance of the front cabin structure of the existing non-load-bearing body more prominent. Summary of the invention

[0004] In order to solve the defects of the above-mentioned prior art, the present invention provides a front wheel cover assembly and a front cabin structure of a non-load-bearing vehicle body to solve the technical problems of poor energy absorption effect and insufficient collision safety performance of the existing front cabin structure of a non-load-bearing vehicle body.

[0005] In order to achieve the above object, the technical solution of the present invention is as follows:

[0006] A front wheel cover assembly of a non-load-bearing vehicle body comprises two front wheel cover units which are arranged symmetrically on the left and right; the front wheel cover units comprise a fender inner panel assembly, a wheel cover upper side beam assembly and a column;

[0007] The fender inner panel assembly is arranged on the outer side of the wheel house upper side beam assembly in the left-right direction of the vehicle body, and the front ends of the fender inner panel assembly and the wheel house upper side beam assembly are fixedly connected to the pillar;

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

[0009] The upright column is used for being fixedly connected to the front cross beam assembly of the vehicle body.

[0010] By setting the upright column, the front ends of the fender inner panel assembly and the wheel house upper side beam assembly are fixedly connected to the upright column, and the rear ends of the fender inner panel assembly and the wheel house upper side beam assembly are fixedly connected to the A-pillar of the vehicle body, so that the front cabin structure of the non-load-bearing vehicle body installed with the front wheel house assembly of the non-load-bearing vehicle body provided by the present invention can form two collision force transmission channels in the front-to-back direction on both 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 house upper side beam assembly). Compared with the existing non-load-bearing vehicle body, the front cabin structure only forms one collision force transmission channel in the front-to-back direction on both sides (usually only formed by the wheel house upper side beam), which is beneficial to the transmission of force during 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 cabin structure.

[0011] Based on the front wheel cover assembly of the non-load-bearing vehicle body provided by the present invention, the present invention further provides a front cabin structure of the non-load-bearing vehicle body, comprising a front crossbeam assembly and the front wheel cover assembly of the non-load-bearing vehicle body provided by the present invention;

[0012] The front cross beam assembly is fixedly installed between two upright posts of the front wheel cover assembly.

[0013] Further, the front crossbeam assembly includes a first reinforcement beam and a water tank installation crossbeam assembly arranged in sequence from top to bottom;

[0014] The first reinforcement beam and the water tank installation cross beam assembly are both fixedly installed between the two columns;

[0015] The water tank mounting crossbeam assembly is used to mount the water tank and the water tank frame;

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

[0017] By providing the first reinforcing beam, the front cabin structure of the non-load-bearing vehicle 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 to the front cabin structure of the existing non-load-bearing vehicle body, thereby enhancing the energy absorption effect of the front cabin structure of the non-load-bearing vehicle body, improving the collision safety performance, and further protecting the automobile components installed in the front cabin.

[0018] Furthermore, the water tank installation beam assembly includes a water tank upper beam and a water tank lower beam arranged in sequence from top to bottom;

[0019] The water tank upper cross beam and the water tank lower cross beam are both fixedly installed between the two upright columns;

[0020] An engine hood lock is arranged in the middle of the upper side surface of the upper cross beam of the water tank. The upper cross beam of the water tank is used to install the water tank frame; and the lower cross beam of the water tank is used to be fixedly connected with the bottom of the water tank.

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

[0022] A set of energy absorption boxes are correspondingly arranged on the rear side surfaces of the left and right ends of the lower cross beam of the water tank, and the two ends of the lower cross beam of the water tank are respectively fixedly connected to the front side surfaces of the pillars on the same side through the corresponding energy absorption boxes;

[0023] The upper side surfaces of the two groups of energy absorption boxes are used to be fixedly connected to the bottom end of the water tank.

[0024] The energy absorption box absorbs collision energy through deformation, forming a deformation zone for low-speed collision at the front of the vehicle body, which can reduce the energy transferred to other parts of the vehicle body in the event of a frontal collision, and completely absorb the collision energy in the event of a low-speed frontal collision to protect other vehicle body structures, greatly reducing maintenance costs.

[0025] Furthermore, the water tank installation beam assembly also includes two connecting brackets; the left and right ends of the lower cross beam of the water tank are respectively fixedly connected with one of the connecting brackets;

[0026] The connecting bracket is arranged on the outer side of the energy absorption 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 arranging a connecting bracket on the outer sides of the two energy absorption boxes and connecting the pillar and the lower cross beam of the water tank by using the connecting bracket, a deformation zone of a low-speed collision is formed at the front of the vehicle body, while the connection strength between the lower cross beam of the water tank and the pillar can be ensured, thereby ensuring that the energy absorption box and the lower cross beam of the water tank can stably support the water tank.

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

[0030] Furthermore, the front cabin structure of the non-load-bearing vehicle body further includes two diagonal bracing tube beams which are symmetrically arranged on the left and right and are both 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 providing the diagonal bracing tube beam, the strength of the first reinforcing beam can be improved, and the automobile components installed in the front cabin can be better protected.

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

[0034] Furthermore, the front cabin structure of the non-load-bearing vehicle body also includes a front dash panel assembly, and the front dash panel assembly is fixedly installed between two A-pillars of the vehicle body.

[0035] Further, the front dash panel assembly includes a front dash upper panel and a front dash lower panel, and the lower end of the front dash upper panel is fixedly connected to the upper end of the front dash lower panel;

[0036] A second reinforcing beam extending in a vertical direction is arranged on the front side surface of the front lower baffle plate, and the second reinforcing beam is welded to the front side surface of the front lower baffle plate.

[0037] A dash panel cross beam is usually arranged between the dash upper panel and the dash lower panel of the existing non-load-bearing vehicle body. However, since the dash panel of the non-load-bearing vehicle body does not require too many force transmission paths, the front cabin structure of the non-load-bearing vehicle body provided by the present invention eliminates the dash panel cross beam, which can effectively reduce the weight of the front cabin structure. At the same time, since the dash panel assembly usually also needs to be installed with electrical controllers, water pipes, brake pipes, high and low voltage wiring harnesses, sound insulation pads, carpets and other components, as well as cockpit wiring harness brackets, instrument panel mounting brackets, adjustment mounting brackets, controller mounting brackets, cooling water pipe mounting brackets and other brackets, the stability of the dash panel assembly supporting the above-mentioned components and brackets can be effectively guaranteed by providing the second reinforcing beam. When the vehicle collides, the dash panel assembly can absorb and disperse part of the collision energy, reduce the impact on the passenger compartment, and improve the safety of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the implementation mode will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0039] Figure 1 The structure of the left front wheel cover unit of the front wheel cover assembly of the non-load-bearing vehicle body in the embodiment is schematically shown. Figure 1 ;

[0040] Figure 2 The structure of the left front wheel cover unit of the front wheel cover assembly of the non-load-bearing vehicle body in the embodiment is schematically shown. Figure 2 ;

[0041] Figure 3 Schematic diagram of the front cabin structure of the non-load-bearing vehicle body in the embodiment Figure 1 ;

[0042] Figure 4 Schematic diagram of the front cabin structure of the non-load-bearing vehicle body in the embodiment Figure 2 ;

[0043] Figure 5 2 is a schematic diagram of the structure of the lower cross beam of the water tank in the embodiment;

[0044] Figure 6 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 is a schematic structural diagram of a first reinforcing beam in an embodiment;

[0046] Figure 8 is a schematic structural diagram of the front upper baffle in the embodiment;

[0047] Fig. 9 The structure of the front lower baffle in the embodiment is shown in FIG. Figure 1 ;

[0048] Fig.10 The structure of the front lower baffle in the embodiment is shown in FIG. Figure 2 ;

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

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

[0051] 4.1—first reinforcement beam, 4.2—upper cross beam of radiator, 4.3—lower cross beam of radiator, 4.4—engine hood lock, 4.5—energy absorption box, 4.6—connecting bracket, 4.7—engine hood lock support frame, 4.8—diagonal bracing tube beam, 4.9—radiator mounting bracket; 5.1—front upper baffle, 5.2—front lower baffle, 5.3—second reinforcement beam. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0053] Embodiment 1:

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

[0055] The fender inner panel assembly 1.1 is arranged on the outer side of the wheel house upper side beam assembly 1.2 in the left-right direction of the vehicle body, and the front ends of the fender inner panel assembly 1.1 and the wheel house upper side beam assembly 1.2 are fixedly connected to the pillar 1.3;

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

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

[0058] By setting the column 1.3, the front ends of the fender inner panel assembly 1.1 and the wheel cover upper side beam assembly 1.2 are fixedly connected to the column 1.3, and the rear ends of the fender inner panel assembly 1.1 and the wheel cover upper side beam assembly 1.2 are fixedly connected to the A-pillar 3 of the vehicle body, so that the front cabin structure of the non-load-bearing vehicle body installed with the front wheel cover assembly of the non-load-bearing vehicle body provided by the present invention can form two collision force transmission channels in the front and rear directions on both 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 cover upper side beam assembly 1.2). Compared with the existing non-load-bearing vehicle body, the front cabin structure only forms one collision force transmission channel in the front and rear directions on both sides (usually only formed by the wheel cover upper side beam), which is beneficial to the transmission of force during 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 cabin structure.

[0059] Embodiment 2:

[0060] like Figure 3 and Figure 4 As shown, based on the front wheel cover assembly of the non-load-bearing vehicle body provided in Example 1, Example 2 provides a front cabin structure of the non-load-bearing vehicle body, including a front cross beam assembly 4 and the front wheel cover assembly of the non-load-bearing vehicle body provided by the present invention;

[0061] The front crossbeam assembly 4 is fixedly mounted between two upright posts 1.3 of the front wheel housing assembly.

[0062] In one embodiment, if 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 in sequence from top to bottom;

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

[0064] The water tank installation crossbeam assembly is used to install the water tank and the water tank frame;

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

[0066] By providing the first reinforcing beam 4.1, the front cabin structure of the non-load-bearing vehicle 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 to the front cabin structure of the existing non-load-bearing vehicle body, thereby enhancing the energy absorption effect of the front cabin structure of the non-load-bearing vehicle body, improving the collision safety performance, and further protecting the automobile components installed in the front cabin.

[0067] In one embodiment, if Figures 3 to 7 As shown, the water tank installation beam assembly includes a water tank upper beam 4.2 and a water tank lower beam 4.3 arranged in sequence from top to bottom;

[0068] The upper cross beam 4.2 of the water tank and the lower cross beam 4.3 of the water tank are both fixedly installed between the two upright posts 1.3;

[0069] An engine hood lock 4.4 is provided in the middle of the upper side of the water tank upper cross beam 4.2, and the water tank upper cross beam 4.2 is used to install the water tank frame; the water tank lower cross beam 4.3 is used to be fixedly connected with the bottom of the water tank.

[0070] In one embodiment, if Figures 3 to 5 As shown, the water tank upper cross beam 4.2 and the water tank lower cross beam 4.3 are arranged in sequence from rear to front in the front-rear direction of the vehicle body;

[0071] A set of energy absorption boxes 4.5 are correspondingly arranged on the rear side surfaces of the left and right ends of the lower cross beam 4.3 of the water tank, and the two ends of the lower cross beam 4.3 of the water tank are respectively fixedly connected to the front side surfaces of the columns 1.3 on the same side through the corresponding energy absorption boxes 4.5;

[0072] The upper side surfaces of the two sets of energy absorption boxes 4.5 are used to be fixedly connected to the bottom end of the water tank.

[0073] The energy absorbing box 4.5 absorbs collision energy through deformation, forming a deformation zone for low-speed collision at the front of the vehicle body. It can reduce the energy transferred to other parts of the vehicle body in the event of a frontal collision, and completely absorb the collision energy in a low-speed frontal collision to protect other vehicle body structures, greatly reducing maintenance costs.

[0074] In one embodiment, if Figure 7As shown, the water tank installation beam assembly also includes two connecting brackets 4.6; the left and right ends of the water tank lower beam 4.3 are respectively fixedly connected with a connecting bracket 4.6;

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

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

[0077] By arranging a connecting bracket 4.6 on the outer side of each of the two energy absorption boxes 4.5, and connecting the pillar 1.3 and the lower cross beam 4.3 of the water tank by using the connecting bracket 4.6, a deformation zone of a low-speed collision is formed at the front of the vehicle body, while the connection strength between the lower cross beam 4.3 of the water tank and the pillar 1.3 can be ensured, thereby ensuring that the energy absorption box 4.5 and the lower cross beam 4.3 of the water tank can stably support the water tank.

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

[0079] Preferably, in this embodiment 2, Figure 3 , Figure 4 and Figure 7 As shown, the front cabin structure of the non-load-bearing vehicle body also includes two diagonal bracing tube beams 4.8 which are symmetrically arranged on the left and right and are both 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 providing the diagonal bracing tube beam 4.8, the strength of the first reinforcing beam 4.1 can be improved, and the automobile components installed in the front cabin can be better protected.

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

[0083] In one embodiment, if Figure 3 , Figure 4 , Figure 8 , Fig. 9 and Fig.10 As shown, the front cabin structure of the non-load-bearing vehicle body also includes a front dash panel assembly 5, and the front dash panel assembly 5 is fixedly installed between two A-pillars 3 of the vehicle body.

[0084] Preferably, in this embodiment 2, Figures 8 to 10 As shown, the dash panel assembly 5 includes a dash upper panel 5.1 and a dash lower panel 5.2, and the lower end of the dash upper panel 5.1 is fixedly connected to the upper end of the dash lower panel 5.2;

[0085] A second reinforcing beam 5.3 extending in the vertical direction is arranged on the front side surface of the front lower baffle plate 5.2. The second reinforcing beam 5.3 is welded to the front side surface of the front lower baffle plate 5.2.

[0086] A dash panel cross beam is usually arranged between the dash panel upper baffle 5.1 and the dash panel lower baffle 5.2 of the existing non-load-bearing body. However, since the dash panel of the non-load-bearing body does not require too many force transmission paths, the dash panel cross beam is eliminated in the front cabin structure of the non-load-bearing body provided by the present invention, which can effectively reduce the weight of the front cabin structure. At the same time, since the dash panel assembly 5 is usually also equipped with electrical controllers, water pipes, brake pipes, high and low voltage wiring harnesses, sound insulation pads, carpets and other components, as well as cockpit wiring harness brackets, instrument panel mounting brackets, adjustment mounting brackets, controller mounting brackets, cooling water pipe mounting brackets and other brackets, the stability of the dash panel assembly 5 supporting the above-mentioned components and brackets can be effectively guaranteed by providing a second reinforcing beam 5.3. When the vehicle collides, the dash panel assembly 5 can absorb and disperse part of the collision energy, reduce the impact on the passenger compartment, and improve the safety of the vehicle.

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

[0088] 1. By setting a column 1.3, the front ends of the fender inner panel assembly 1.1 and the wheel house upper side beam assembly 1.2 are fixedly connected to the column 1.3, and the rear ends of the fender inner panel assembly 1.1 and the wheel house upper side beam assembly 1.2 are fixedly connected to the A-pillar 3 of the vehicle body, so that the front cabin structure of the non-load-bearing vehicle body equipped with the front wheel house assembly provided by the present invention can form two collision force transmission channels in the front and rear directions on both 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 house upper side beam assembly 1.2). Compared with the existing non-load-bearing vehicle body, the front cabin structure only forms one collision force transmission channel in the front and rear directions on both sides (usually only formed by the wheel house upper side beam), which is beneficial to the transmission of force during frontal collision and improves the safety of the passenger compartment; and solves the technical problems of poor energy absorption effect and insufficient collision safety performance of the existing non-load-bearing vehicle body front cabin structure.

[0089] 2. By providing the first reinforcing beam 4.1, the front cabin structure of the non-load-bearing vehicle 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 to the front cabin structure of the existing non-load-bearing vehicle body, thereby enhancing the energy absorption effect of the front cabin structure of the non-load-bearing vehicle body, improving the collision safety performance, and further protecting the automobile parts installed in the front cabin.

[0090] 3. The energy absorbing box 4.5 absorbs collision energy through deformation, forming a deformation zone for low-speed collision at the front of the vehicle body. This can reduce the energy transferred to other parts of the vehicle body in a frontal collision, and completely absorb the collision energy in a low-speed frontal collision to protect other vehicle body structures, greatly reducing maintenance costs.

[0091] 4. By arranging a connecting bracket 4.6 on the outer side of each of the two energy absorption boxes 4.5, and connecting the pillar 1.3 and the lower cross beam 4.3 of the water tank by using the connecting bracket 4.6, a deformation zone of low-speed collision is formed at the front of the vehicle body, and the connection strength between the lower cross beam 4.3 of the water tank and the pillar 1.3 can be ensured, thereby ensuring that the energy absorption box 4.5 and the lower cross beam 4.3 of the water tank can stably support the water tank.

[0092] 5. The diagonal bracing tube beam 4.8 can be provided to improve the strength of the first reinforcing beam 4.1, thereby better protecting the automobile components installed in the front cabin.

[0093] 6. A dash panel cross beam is usually arranged between the dash upper panel 5.1 and the dash lower panel 5.2 of the existing non-load-bearing vehicle body. However, since the dash panel of the non-load-bearing vehicle body does not require too many force transmission paths, the dash panel cross beam is eliminated in the front cabin structure of the non-load-bearing vehicle body provided by the present invention, which can effectively reduce the weight of the front cabin structure. At the same time, since the dash panel assembly 5 is usually also equipped with electrical controllers, water pipes, brake pipes, high and low voltage wiring harnesses, sound insulation pads, carpets and other components, as well as cockpit wiring harness brackets, instrument panel mounting brackets, adjustment mounting brackets, controller mounting brackets, cooling water pipe mounting brackets and other brackets, the stability of the dash panel assembly 5 supporting the above components and brackets can be effectively guaranteed by providing a second reinforcing beam 5.3. When the vehicle collides, the dash panel assembly 5 can absorb and disperse part of the collision energy, reduce the impact on the passenger compartment, and improve the safety of the vehicle.

[0094] The above are only specific application examples of the present invention and do not constitute any limitation to the protection scope of the present invention. Any technical solutions formed by equivalent transformation or equivalent replacement shall fall within the protection scope of the present invention.

Claims

1. A front wheel cover assembly of a non-load-bearing vehicle body, characterized in that: It comprises two front wheel cover units which are arranged symmetrically on the left and right sides; the front wheel cover unit comprises a fender inner panel assembly, a wheel cover upper side beam assembly and a column; The fender inner panel assembly is arranged on the outer side of the wheel house upper side beam assembly in the left-right direction of the vehicle body, and the front ends of the fender inner panel assembly and the wheel house upper side beam assembly are fixedly connected to the pillar; The rear ends of the fender inner panel assembly and the wheel house upper side beam assembly are both used for fixed connection with the A-pillar of the vehicle body; The upright column is used for being fixedly connected to the front cross beam assembly of the vehicle body.

2. A front cabin structure of a non-load-bearing vehicle body, characterized in that: The invention comprises a front cross beam assembly and a front wheel cover assembly of a non-load-bearing vehicle body as claimed in claim 1; The front cross beam assembly is fixedly installed between two upright posts of the front wheel cover assembly.

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

4. The front cabin structure of the non-load-bearing vehicle body according to claim 3, characterized in that: The water tank installation beam assembly comprises a water tank upper beam and a water tank lower beam arranged in sequence from top to bottom; The water tank upper cross beam and the water tank lower cross beam are both fixedly installed between the two upright columns; An engine hood lock is arranged in the middle of the upper side surface of the upper cross beam of the water tank. The upper cross beam of the water tank is used to install the water tank frame; and the lower cross beam of the water tank is used to be fixedly connected with the bottom of the water tank.

5. The front cabin structure of the non-load-bearing vehicle body according to claim 4, characterized in that: The water tank upper cross beam and the water tank lower cross beam are arranged in sequence from rear to front in the front-rear direction of the vehicle body; A set of energy absorption boxes are correspondingly arranged on the rear side surfaces of the left and right ends of the lower cross beam of the water tank, and the two ends of the lower cross beam of the water tank are respectively fixedly connected to the front side surfaces of the pillars on the same side through the corresponding energy absorption boxes; The upper side surfaces of the two groups of energy absorption boxes are used to be fixedly connected to the bottom end of the water tank.

6. The front cabin structure of the non-load-bearing vehicle body according to claim 5, characterized in that: The water tank installation crossbeam assembly also includes two connecting brackets; the left and right ends of the lower crossbeam of the water tank are respectively fixedly connected with one of the connecting brackets; The connecting bracket is arranged on the outer side of the energy absorption 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 cabin structure of the non-load-bearing vehicle body according to claim 4, characterized in that: The water tank mounting crossbeam assembly also includes a hood lock support frame, the upper end of the hood lock support frame is fixedly connected to the middle of the lower side of the water tank upper crossbeam, and the lower end of the hood lock is fixedly connected to the middle of the water tank lower crossbeam.

8. The front cabin structure of the non-load-bearing vehicle body according to claim 3, characterized in that: The front cabin structure of the non-load-bearing vehicle body also includes two diagonal bracing tube beams that are symmetrically arranged on the left and right and are both 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 cabin structure of the non-load-bearing vehicle body according to claim 2, characterized in that: The front cabin structure of the non-load-bearing vehicle body also includes a front dash panel assembly, and the front dash panel assembly is fixedly installed between two A-pillars of the vehicle body.

10. The front cabin structure of the non-load-bearing vehicle body according to claim 9, characterized in that: The dash panel assembly includes a dash upper panel and a dash lower panel, wherein the lower end of the dash upper panel is fixedly connected to the upper end of the dash lower panel; A second reinforcing beam extending in a vertical direction is arranged on the front side surface of the front lower baffle plate, and the second reinforcing beam is welded to the front side surface of the front lower baffle plate.

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