A frame assembly for a new energy commercial vehicle

Abstract

A new energy commercial vehicle frame assembly relates to the technical field of commercial vehicle frame, and the technical scheme is: including right side beam which is symmetrically and parallelly arranged along the center axis of the frame, and the right side beam and the left side beam are commonly fixed with the cross beam support. The beneficial effects of the technical scheme are: the battery, the cooling system and the high and low pressure system accessory mounting space of the new energy commercial vehicle are wrapped and arranged by using two side beams and each transverse support beam, the problems of low overall chassis integrity, uneven vehicle gravity distribution and collision safety in the prior art are solved; the transverse support beam is provided with an opening at the center axis of the frame, sufficient space is reserved for the arrangement of the wire harness and the cooling water pipe, and the problem of insufficient arrangement space of the wire harness and the cooling water pipe is solved; in addition, the sunken side beam is designed at the front end of the frame, and the demand of the low-entry cab can be met.

Description

Technical Field

[0001] This invention relates to the field of commercial vehicle frame technology, and more particularly to a frame assembly for a new energy commercial vehicle. Background Technology

[0002] Commercial vehicles are the main road transport equipment in my country. The chassis, as the load-bearing base, is the main component that bears the sprung mass of the vehicle body, cargo box, and other components, and is subjected to complex static and dynamic loads. New energy will be the main development direction of commercial vehicles in the future.

[0003] However, the chassis of new energy commercial vehicles in China are currently modified based on traditional chassis, which have problems such as weak overall chassis integrity, insufficient space for wiring harnesses and cooling water pipes, the need for the layout of power batteries and high and low voltage system accessories to adapt to the chassis structure, uneven distribution of the vehicle's center of gravity, and potential hazards in collision safety. There is a lack of a chassis assembly specifically designed for new energy commercial vehicles. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of current commercial vehicle power battery and high and low voltage system accessory layouts that need to adapt to the vehicle frame structure, uneven distribution of the vehicle's center of gravity, and potential collision safety hazards, and to propose a new type of vehicle frame assembly for new energy commercial vehicles.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A frame assembly for a new energy commercial vehicle includes a right side beam and a left side beam symmetrically and parallelly arranged along the central axis of the frame. A crossbeam bracket is fixed between the right side beam and the left side beam. The bottom of the crossbeam bracket is provided with multiple longitudinal support beams arranged parallel to the central axis of the frame. Multiple grooves for weight reduction are provided on the longitudinal support beams. A front axle section frame is provided at one end of the crossbeam bracket, and a rear axle section frame is connected at the end of the crossbeam bracket away from the front axle section frame. The crossbeam bracket includes multiple transverse support beams, the bottom of which is connected to the longitudinal support beams. A certain distance is spaced between adjacent transverse support beams to serve as installation space for vehicle equipment.

[0006] The longitudinal support beams support the crossbeam brackets and also divide the equipment that needs to be installed on vehicles to prevent collisions during use and ensure the safety of the equipment.

[0007] Preferably, the crossbeam support includes a first transverse support beam, a second transverse support beam, a third transverse support beam, a fourth transverse support beam, and a fifth transverse support beam. A cooling chamber is provided between the first transverse support beam and the second transverse support beam. Battery compartments are provided between the second transverse support beam and the third transverse support beam and the fourth transverse support beam. A high- and low-voltage system accessory compartment is provided between the fourth transverse support beam and the fifth transverse support beam.

[0008] The first, second, third, fourth, and fifth transverse support beams divide different parts, thereby protecting them and preventing collisions. The cooling compartment is used to house the cooling system, the battery compartment is used to house the power battery, and the high and low voltage system accessory compartment is used to house high and low voltage system accessories.

[0009] Preferably, the front axle section frame includes a first front axle rectangular transverse tube beam and a second front axle rectangular transverse tube beam. The two ends of the first and second front axle rectangular transverse tube beams are respectively connected to the right side beam and the left side beam through a front axle reinforcing beam. The first and second front axle rectangular transverse tube beams are connected together by a right front axle rectangular longitudinal tube beam and a left front axle rectangular longitudinal tube beam. The right front axle rectangular longitudinal tube beam and the left front axle rectangular longitudinal tube beam are connected by a front independent suspension.

[0010] The front independent suspension is fixed to the front axle section frame through multiple bolt mounting holes on the front axle rectangular longitudinal tube beam.

[0011] Preferably, the two ends of the right front axle rectangular longitudinal tube beam and the left front axle rectangular longitudinal tube beam are connected to the first front axle rectangular transverse tube beam and the second front axle rectangular transverse tube beam respectively through front axle reinforcing castings.

[0012] The front axle reinforcement casting provides stable support for the rectangular longitudinal tubular beams of the right and left front axles, offering good support force.

[0013] Preferably, the rear axle section frame includes a first rear axle rectangular transverse tube beam and a second rear axle rectangular transverse tube beam. A right rear axle rectangular longitudinal tube beam and a left rear axle rectangular longitudinal tube beam are connected between the first rear axle rectangular transverse tube beam and the second rear axle rectangular transverse tube beam. A rear leaf spring suspension is connected between the right rear axle rectangular longitudinal tube beam and the left rear axle rectangular longitudinal tube beam. Both ends of the first rear axle rectangular transverse tube beam and the second rear axle rectangular transverse tube beam are connected to the right side beam and the left side beam through a rear axle reinforcing beam. A rear crossbeam is fixed between the right side beam and the left side beam, with one end of the rear crossbeam away from the second rear axle rectangular transverse tube beam.

[0014] The rear leaf spring suspension is mounted on the rear axle section frame via suspension mounting brackets.

[0015] Preferably, the two ends of the right rear axle rectangular longitudinal tube beam and the left rear axle rectangular longitudinal tube beam are respectively connected to the first rear axle rectangular transverse tube beam and the second rear axle rectangular transverse tube beam via suspension mounting supports.

[0016] The suspension mounting bracket includes two limiting parts and one connecting part. The first rear axle rectangular transverse tube beam and the second rear axle rectangular transverse tube beam are located within the two limiting parts and are connected to the limiting parts by bolts.

[0017] Preferably, the right beam is connected to a right sunken side beam via a right connecting plate, and the left beam is connected to a left sunken side beam via a left connecting plate. A first crossbeam and a second crossbeam are installed together between the left sunken side beam and the right sunken side beam, and multiple parallel rectangular support beams are connected between the first crossbeam and the second crossbeam.

[0018] The design incorporates recessed side beams to meet the requirements of a low-entry cab, and multiple rectangular support beams are arranged in parallel to increase the rigidity of the front frame.

[0019] Preferably, adjacent transverse support beams are connected to longitudinal support beams via longitudinal fixing brackets.

[0020] Preferably, both ends of the first, second, third, fourth, and fifth transverse support beams are connected to the right and left beams respectively through multiple transverse fixing brackets.

[0021] The transverse fixing brackets securely fix the first transverse support beam, the second transverse support beam, the third transverse support beam, the fourth transverse support beam, and the fifth transverse support beam to the right beam and the left beam.

[0022] Preferably, the two ends of the transverse support beam are respectively connected to the right beam and the left beam through multiple transverse fixing brackets.

[0023] Preferably, the second, third, and fourth lateral support beams are at the same height, the first and fifth lateral support beams are at a lower height than the second lateral support beam, the second front axle rectangular lateral tube beam is located above the first lateral support beam, and the first rear axle rectangular lateral tube beam is located above the fifth lateral support beam.

[0024] The dimensions of the first and fifth transverse support beams are smaller than those of the other transverse support beams, thus reserving installation space for the second front axle rectangular transverse tube beam and the first rear axle rectangular transverse tube beam.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows: the installation space for the battery, cooling system and high and low voltage system accessories of the new energy commercial vehicle is wrapped by two side beams and each transverse support beam, which solves the hidden dangers of low chassis integrity, uneven distribution of vehicle center of gravity and collision safety under the existing traditional technical solutions; the transverse support beams have openings at the central axis of the frame, which reserve sufficient space for the arrangement of the vehicle wiring harness and cooling water pipes, solving the problem of insufficient space for wiring harness and cooling water pipe arrangement; in addition, the recessed side beams designed at the front end of the frame can meet the requirements of the low-entry cab. Attached Figure Description

[0026] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description will be briefly introduced below. Obviously, the accompanying 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.

[0027] Figure 1 This is a schematic diagram of the vehicle frame assembly structure in a specific embodiment of the present invention; Figure 2 This is a schematic diagram of the crossbeam support structure in a specific embodiment of the present invention; Figure 3 This is a schematic diagram of the sunken side beam in a specific embodiment of the present invention; Figure 4 This is a schematic diagram of the front axle section frame in a specific embodiment of the present invention; Figure 5 This is a schematic diagram of the rear axle section frame in a specific embodiment of the present invention; Figure 6 This is a schematic diagram of the chassis layout structure in a specific embodiment of the present invention.

[0028] In the diagram: 1 Right side beam, 2 Left side beam, 3 First transverse support beam, 4 Second transverse support beam, 5 Third transverse support beam, 6 Fourth transverse support beam, 7 Fifth transverse support beam, 8 Rear crossbeam, 9 Longitudinal support beam, 10 Transverse fixed bracket, 11 Longitudinal fixed bracket, 12 Right sunken side beam, 13 Left sunken side beam, 14 Right connecting plate, 15 Left connecting plate, 16 First crossbeam, 17 Second crossbeam, 18 Rectangular support beam, 19 First front axle rectangular transverse tube beam, 20 21. Rectangular transverse tube beam of the second front axle; 22. Rectangular longitudinal tube beam of the right front axle; 23. Rectangular longitudinal tube beam of the left front axle; 24. Front axle reinforcing beam; 25. Rectangular transverse tube beam of the first rear axle; 26. Rectangular transverse tube beam of the second rear axle; 27. Rectangular longitudinal tube beam of the right rear axle; 28. Rectangular longitudinal tube beam of the left rear axle; 29. ​​Rear axle reinforcing beam; 30. Suspension mounting bracket; 31. Cooling system; 32. Power battery; 33. High and low voltage system accessories; 34. Front independent suspension; 35. Rear leaf spring suspension. Detailed Implementation

[0029] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0030] Reference Figure 1-6A frame assembly for a new energy commercial vehicle includes a right side beam 1 symmetrically and parallelly arranged along the central axis of the frame. A crossbeam bracket is fixed between the right side beam 1 and the left side beam 2. The crossbeam bracket divides the space between the right side beam 1 and the left side beam 2 into multiple internal compartments, improving the overall integrity of the chassis and the collision safety of the vehicle. The distribution of the vehicle's center of gravity is also more reasonable. At the bottom of the crossbeam bracket, multiple longitudinal support beams 9 are arranged parallel to the central axis of the frame. Multiple grooves for weight reduction are provided on the longitudinal support beams 9. The longitudinal support beams 9 support the parts that need to be placed. A front axle section frame is provided at one end of the crossbeam bracket, and a rear axle section frame is connected at the end of the crossbeam bracket away from the front axle section frame. The crossbeam bracket includes multiple transverse support beams. Openings are provided on the transverse support beams to facilitate the installation of water pipes and wiring harnesses. The bottoms of the multiple transverse support beams are all connected to the longitudinal support beams 9. A certain distance is spaced between adjacent transverse support beams to serve as installation space for vehicle equipment.

[0031] Reference Figure 1-6 The crossbeam support includes a first transverse support beam 3, a second transverse support beam 4, a third transverse support beam 5, a fourth transverse support beam 6, and a fifth transverse support beam 7. One end of multiple longitudinal support beams 9 is fixed to the fifth transverse support beam 7, and the ends of multiple longitudinal support beams 9 away from the fifth transverse support beam 7 are fixed to the first transverse support beam 3. Different parts are separated by different support beams, thus protecting the parts and preventing collisions. The first transverse support beam 3 is connected to the second transverse support beam 4, the second transverse support beam 4 to the third transverse support beam 5, the third transverse support beam 5 to the fourth transverse support beam 6, and the fourth transverse support beam 6 to the fifth transverse support beam 7 via multiple longitudinal support beams 9. A longitudinal fixing bracket 11 connects the longitudinal support beams 9 to each transverse support beam, providing stable support for the batteries and other parts to be placed. The first transverse support beam 3... The first transverse support beam 3, the second transverse support beam 4, the third transverse support beam 5, the fourth transverse support beam 6, and the fifth transverse support beam 7 are all connected to the right beam 1 and the left beam 2 respectively by multiple transverse fixing brackets 10. The transverse fixing brackets 10 firmly fix the first transverse support beam 3, the second transverse support beam 4, the third transverse support beam 5, the fourth transverse support beam 6, and the fifth transverse support beam 7 to the right beam 1 and the left beam 2. A cooling chamber is set between the first transverse support beam 3 and the second transverse support beam 4, and the cooling chamber is used to house the cooling system 31. A battery compartment is set between the second transverse support beam 4 and the third transverse support beam 5 and the fourth transverse support beam 6, and the battery compartment is used to house the power battery 32. A high and low voltage system accessory compartment is set between the fourth transverse support beam 6 and the fifth transverse support beam 7, and the high and low voltage system accessory compartment is used to house the high and low voltage system accessories 33.

[0032] Reference Figure 1 and 4The front axle frame includes a first front axle rectangular transverse tube beam 19 and a second front axle rectangular transverse tube beam 20. The two ends of the first front axle rectangular transverse tube beam 19 and the second front axle rectangular transverse tube beam 20 are connected to the right side beam 1 and the left side beam 2 respectively via a front axle reinforcing beam 23. The front axle reinforcing beam 23 is bolted to the right side beam 1 and the left side beam 2. The first front axle rectangular transverse tube beam 19 and the second front axle rectangular transverse tube beam 20 are connected together by a right front axle rectangular longitudinal tube beam 21 and a left front axle rectangular longitudinal tube beam 22. The two ends of the rectangular longitudinal tube beam 22 of the right front axle and the rectangular longitudinal tube beam 21 of the left front axle are connected to the first rectangular transverse tube beam 19 and the second rectangular transverse tube beam 20 of the front axle through the front axle reinforcing casting 24, respectively. The front axle reinforcing casting 24 provides stable support for the rectangular longitudinal tube beam 21 of the right front axle and the rectangular longitudinal tube beam 22 of the left front axle, providing good support force. The rectangular longitudinal tube beam 21 of the right front axle and the rectangular longitudinal tube beam 22 of the left front axle are connected by a front independent suspension 34. The rectangular longitudinal tube beam 21 of the right front axle and the rectangular longitudinal tube beam 22 of the left front axle are connected to the front independent suspension 34 by bolts.

[0033] Reference Figure 1-6 The rear axle frame includes a first rear axle rectangular transverse tube beam 25 and a second rear axle rectangular transverse tube beam 26. A rear crossbeam 8 is fixed between the right side beam 1 and the left side beam 2. The end of the rear crossbeam 8 is away from the second rear axle rectangular transverse tube beam 26. A right rear axle rectangular longitudinal tube beam 27 and a left rear axle rectangular longitudinal tube beam 28 are connected between the first rear axle rectangular transverse tube beam 25 and the second rear axle rectangular transverse tube beam 26. A rear leaf spring suspension 35 is connected between the right rear axle rectangular longitudinal tube beam 27 and the left rear axle rectangular longitudinal tube beam 28. Both ends of the first rear axle rectangular transverse tube beam 25 and the second rear axle rectangular transverse tube beam 26 are connected to the right side beam 1 and the left side beam 2 through a rear axle reinforcing beam 29.

[0034] Reference Figure 1 and 5 The two ends of the right rear axle rectangular longitudinal tube beam 27 and the left rear axle rectangular longitudinal tube beam 28 are respectively connected to the first rear axle rectangular transverse tube beam 25 and the second rear axle rectangular transverse tube beam 26 through the suspension mounting bracket 30. The suspension mounting bracket 30 includes two limiting parts and one connecting part. The first rear axle rectangular transverse tube beam 25 and the second rear axle rectangular transverse tube beam 26 are located in the two limiting parts and are connected to the limiting parts by bolts.

[0035] Reference Figure 1 and 3The right beam 1 is connected to the right sunken side beam 12 via the right connecting plate 14, and the left beam 2 is connected to the left sunken side beam 13 via the left connecting plate 15. The sunken side beams are designed to meet the requirements of the low-entry cab. The left sunken side beam 13 and the right sunken side beam 12 are connected by a first crossbeam 16 and a second crossbeam 17. Multiple parallel rectangular support beams 18 are connected between the first crossbeam 16 and the second crossbeam 17. The parallel arrangement of multiple rectangular support beams 18 increases the rigidity of the front frame.

[0036] Reference Figure 1 and 3 The second transverse support beam 4, the third transverse support beam 5, and the fourth transverse support beam 6 have the same height. The first transverse support beam 3 and the fifth transverse support beam 7 are lower than the height of the second transverse support beam 4. The second front axle rectangular transverse tube beam 20 is located above the first transverse support beam 3, and the first rear axle rectangular transverse tube beam 25 is located above the fifth transverse support beam 7. The dimensions of the first transverse support beam 3 and the fifth transverse support beam 7 are smaller than the dimensions of the other transverse support beams, thus reserving installation space for the second front axle rectangular transverse tube beam 20 and the first rear axle rectangular transverse tube beam 25.

[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A chassis assembly for a new energy commercial vehicle, characterized in that: It includes a right beam (1) and a left beam (2) symmetrically and parallelly arranged along the central axis of the frame. A crossbeam bracket is fixed between the right beam (1) and the left beam (2). The bottom of the crossbeam bracket is provided with a plurality of longitudinal support beams (9) arranged in parallel along the central axis of the frame. A plurality of grooves for weight reduction are provided on the longitudinal support beams (9). One end of the crossbeam bracket is provided with a front axle frame. The end of the crossbeam bracket away from the front axle frame is connected to the rear axle frame. The crossbeam bracket includes a plurality of transverse support beams. The bottom of the plurality of transverse support beams is connected to the longitudinal support beams (9). The adjacent transverse support beams are spaced apart by a certain distance as the installation space for vehicle equipment. The crossbeam support includes a first transverse support beam (3), a second transverse support beam (4), a third transverse support beam (5), a fourth transverse support beam (6), and a fifth transverse support beam (7). A cooling chamber is provided between the first transverse support beam (3) and the second transverse support beam (4). A battery compartment is provided between the second transverse support beam (4) and the third transverse support beam (5) and the third transverse support beam (5) and the fourth transverse support beam (6). A high and low voltage system accessory compartment is provided between the fourth transverse support beam (6) and the fifth transverse support beam (7). The front axle section frame includes a first front axle rectangular transverse tube beam (19) and a second front axle rectangular transverse tube beam (20), and the rear axle section frame includes a first rear axle rectangular transverse tube beam (25) and a second rear axle rectangular transverse tube beam (26). The second transverse support beam (4), the third transverse support beam (5), and the fourth transverse support beam (6) have the same height. The first transverse support beam (3) and the fifth transverse support beam (7) are lower than the height of the second transverse support beam (4). The second front axle rectangular transverse tube beam (20) is located above the first transverse support beam (3), and the first rear axle rectangular transverse tube beam (25) is located above the fifth transverse support beam (7).

2. The chassis assembly of the new energy commercial vehicle according to claim 1, characterized in that: The first front axle rectangular transverse tube beam (19) and the second front axle rectangular transverse tube beam (20) are connected to the right side beam (1) and the left side beam (2) respectively through the front axle reinforcing beam (23). The first front axle rectangular transverse tube beam (19) and the second front axle rectangular transverse tube beam (20) are connected together by the right front axle rectangular longitudinal tube beam (21) and the left front axle rectangular longitudinal tube beam (22). The right front axle rectangular longitudinal tube beam (21) and the left front axle rectangular longitudinal tube beam (22) are connected by the front independent suspension (34).

3. The chassis assembly of the new energy commercial vehicle according to claim 2, characterized in that: The right front axle rectangular longitudinal tube beam (21) and the left front axle rectangular longitudinal tube beam (22) are connected at both ends to the first front axle rectangular transverse tube beam (19) and the second front axle rectangular transverse tube beam (20) respectively through the front axle reinforcing casting (24).

4. The chassis assembly of the new energy commercial vehicle according to claim 1, characterized in that: The first rear axle rectangular transverse tube beam (25) and the second rear axle rectangular transverse tube beam (26) are connected by a right rear axle rectangular longitudinal tube beam (27) and a left rear axle rectangular longitudinal tube beam (28). The right rear axle rectangular longitudinal tube beam (27) and the left rear axle rectangular longitudinal tube beam (28) are connected by a rear leaf spring suspension (35). Both ends of the first rear axle rectangular transverse tube beam (25) and the second rear axle rectangular transverse tube beam (26) are connected to the right side beam (1) and the left side beam (2) through a rear axle reinforcing beam (29). A tail crossbeam (8) is fixed between the right side beam (1) and the left side beam (2). The tail crossbeam (8) is located away from the end of the second rear axle rectangular transverse tube beam (26).

5. The chassis assembly of a new energy commercial vehicle according to claim 4, characterized in that: The two ends of the right rear axle rectangular longitudinal tube beam (27) and the left rear axle rectangular longitudinal tube beam (28) are respectively connected to the first rear axle rectangular transverse tube beam (25) and the second rear axle rectangular transverse tube beam (26) through suspension mounting supports (30).

6. The chassis assembly of the new energy commercial vehicle according to claim 1, characterized in that: The right beam (1) is connected to the right sunken side beam (12) via the right connecting plate (14), and the left beam (2) is connected to the left sunken side beam (13) via the left connecting plate (15). The left sunken side beam (13) and the right sunken side beam (12) are connected together by a first crossbeam (16) and a second crossbeam (17). The first crossbeam (16) and the second crossbeam (17) are connected by a plurality of parallel rectangular support beams (18).

7. The chassis assembly of the new energy commercial vehicle according to claim 1, characterized in that: Adjacent transverse support beams are connected to longitudinal support beams (9) by longitudinal fixed brackets (11).

8. The chassis assembly of the new energy commercial vehicle according to claim 1, characterized in that: The two ends of the transverse support beam are respectively connected to the right beam (1) and the left beam (2) by multiple transverse fixed brackets (10).

Images