CN216886261U

CN216886261U - Low-gravity-center hydrogen energy heavy truck chassis

Info

Publication number: CN216886261U
Application number: CN202123168787.7U
Authority: CN
Inventors: 高超; 薛正成; 黄露; 湛时时
Original assignee: Nanjing Sikaiqi Automobile Technology Co ltd
Current assignee: Nanjing Sikaiqi Automobile Technology Co ltd
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-07-05
Anticipated expiration: 2031-12-16

Abstract

The utility model provides a low gravity center hydrogen energy heavy truck chassis which comprises a chassis frame, a gas cylinder frame and a high-pressure accessory, wherein an original back type gas cylinder and a battery are changed into a down-hanging type, an integrated electric drive bridge is used, a transmission shaft is not used, and a chassis space is reserved. The hydrogen cylinders and the battery pack are placed below the chassis frame, so that the risk of shielding a rear window is avoided, the gravity center height is reduced, and the positioning is safe and reliable. The accessories can be regularly arranged on the original wheelbase, the arrangement length of the wiring harness of the whole vehicle is reduced, the messy and complicated trend is avoided, and the cost is saved.

Description

Low-gravity-center hydrogen energy heavy truck chassis

Technical Field

The utility model relates to the technical field of power of hydrogen energy automobiles and electric automobiles, in particular to a low-gravity-center hydrogen energy heavy truck chassis.

Background

At present, hydrogen energy or pure electric truck, rely on the arrangement mode of traditional fuel vehicle mostly, on the basis that does not change former car structure, adopt the mode of back battery or gas cylinder, pass through frame mount battery or gas cylinder at the driver's cabin rear, especially hydrogen energy, because whole car spare part is in large quantity, it is difficult to have better arrangement mode to put in order the car, so this kind of mode of back battery or gas cylinder becomes must to select, can realize fast, but this kind of mode will change former car structure, the focus uprises, and shelter from the rear window glass, there is very big influence to the security of whole car.

SUMMERY OF THE UTILITY MODEL

The utility model provides a low-gravity-center hydrogen energy heavy truck chassis, which changes the original back type gas cylinder and battery into a down-hanging type, and is used for solving the technical problems in the background technology.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

a low center of gravity hydrogen energy heavy truck chassis, comprising:

the chassis frame comprises a left longitudinal beam and a right longitudinal beam which are parallel to each other and arranged at intervals, a plurality of cross beams connected between the left longitudinal beam and the right longitudinal beam, and a rear axle connected to the bottoms of the left longitudinal beam and the right longitudinal beam, wherein the rear axle is an integrated electric drive axle;

the gas cylinder frame is fixedly arranged at the lower end of the chassis frame and comprises a plurality of mounting cavities arranged at intervals, and hydrogen cylinders are arranged in the mounting cavities; still include the high-pressure annex, the high-pressure annex includes battery package, BMS, TMS, PDU and low pressure battery, all sets up gas cylinder frame upper end, and highly no longer than the up end of chassis frame.

Further, the gas cylinder frame is fixed at the lower end of the chassis frame through bolts.

Further, the hydrogen cylinders are fixed in the installation cavity through a binding belt.

Furthermore, the battery pack is fixed at the upper end of the gas cylinder frame through bolts and does not exceed the upper end face of the chassis frame.

Further, the BMS, the PDU and the low-voltage storage battery are fixed at the upper end of the frame through bolts and do not exceed the upper end face of the chassis frame.

Further, the TMS passes through the bolt fastening in the frame upper end, and does not exceed the up end of chassis frame.

Compared with the prior art, the utility model has the beneficial effects that:

1. the battery and the gas cylinder are both in low positions, the gravity center height of the whole vehicle is reduced, the safety is improved, and the comfort is good.

2. The hydrogen cylinders and the battery pack are placed at the lower end of the frame chassis, so that the risk of shielding a rear window is avoided, the height of the center of gravity is reduced, the safety is improved, and the comfort is good.

3. The arrangement mode of the battery pack and the hydrogen cylinder in a flat-laying mode is more stable, the positioning is safe and reliable, and the hydrogen cylinder is not easy to deform.

4. The length of the whole vehicle wire harness is greatly reduced, the wiring is prevented from being messy and complex, especially the high-voltage wire harness, and the cost is saved.

5. Each accessory is modularized, the chassis is regularly arranged, the space utilization rate is high, the safety is high, and after-sale maintenance is convenient.

6. The problems that the existing battery pack is difficult to replace and easy to deform and the like are solved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a side view of the present invention;

FIG. 3 is a rear view of the present invention;

in the figure, the device comprises a rear axle 1, a gas cylinder frame 2, a gas cylinder 3, a hydrogen cylinder 4, a battery pack 5, a BMS 6, a TMS 7, a PDU 8, a low-voltage storage battery 9, a chassis frame 10, an electric accessory 11 and a hydrogen stack.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a low center of gravity hydrogen energy heavy truck chassis includes:

chassis frame 9, chassis frame 9 is connected including the left longeron and the right longeron that are parallel to each other and the interval sets up many crossbeams between left longeron and the right longeron are connected the rear axle 1 of left side longeron and right longeron bottom, rear axle 1 uses integrated form electricity to drive the bridge, does not have the transmission shaft, and great space is left at the chassis middle part.

The gas cylinder frame 2 is fixed at the lower end of the chassis frame 9 through bolts and comprises a plurality of installation cavities arranged at intervals, and hydrogen cylinders 3 are arranged in the installation cavities.

In the structure, the hydrogen cylinder 3 is fixed in the installation cavity through a binding belt.

Still include the high-pressure annex, the high-pressure annex is including being used for providing power battery package 4, be used for intelligent management and maintain each battery unit, prevent that the battery from appearing overcharging and discharging, postponing battery life, the BMS5 of control battery state, be used for battery package thermal management, guarantee battery temperature is in normal condition TMS6, be used for guaranteeing whole car system power, electric energy transmission's PDU7 and the low pressure battery 8 that is used for vehicle start, ignition system and the required electric energy of the interior consumer of car, all fix through the bolt gas cylinder frame 2's upper end, and highly do not exceed chassis frame 9's up end.

Specifically, in this embodiment, the battery pack 4 is provided with four, one is arranged on the middle frame and the right frame, and two are arranged on the left frame, so that the battery pack can be replaced conveniently. The BMS5, the PDU7, and the low voltage battery 8 are disposed at the upper end of the middle frame, and the battery pack 4, the BMS5, the PDU7, and the low voltage battery 8 are separated by a cross member. The TMS6 is provided at the upper end of the right frame. The flat arrangement mode of the battery pack 4 and the hydrogen cylinders 3 is more stable, the positioning is safe and reliable, and the hydrogen cylinders are not easy to deform; each accessory is modularized, the chassis is regularly arranged, the space utilization rate is high, the safety is high, and after-sale maintenance is convenient.

As shown in fig. 1, a hydrogen stack 11 is arranged at the rear side of the vehicle head and fixed at the front end of the vehicle frame through a bracket and a bolt, and is used for producing hydrogen fuel, and chemical energy is converted into electric energy in the process so as to provide power for the vehicle, and the hydrogen production system can also be called as a hydrogen production system. The upper end of the chassis frame 9 is provided with an electric auxiliary 10 near the head, which comprises an electric steering oil pump for ensuring the safety of a steering system and improving the operability of the whole vehicle, a PTC for heating, a water pump for accelerating the cooling circulation of the vehicle, a drive control device, a brake energy feedback control device, the energy optimization of the whole vehicle, fault diagnosis and protection, a VCU for monitoring the state of the vehicle and the like. These accessories are bolted to the electrical accessory support and then to the vehicle frame. The vehicle has two energy supplement modes of hydrogen energy power generation and battery charging.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A low center of gravity hydrogen energy heavy truck chassis, comprising:

the gas cylinder frame is fixedly arranged at the lower end of the chassis frame and comprises a plurality of mounting cavities which are arranged at intervals, and hydrogen cylinders are arranged in the mounting cavities;

still include the high-pressure annex, the high-pressure annex includes battery package, BMS, TMS, PDU and low pressure battery, all sets up the upper end of gas cylinder frame, and the high up end that does not exceed chassis frame.

2. The chassis of claim 1, wherein the gas cylinder frame is fixed at the lower end of the chassis frame through bolts and is lower than the upper end surface of the chassis frame.

3. The low center of gravity hydrogen energy chassis of claim 1, wherein the hydrogen cylinders are secured within the mounting cavities by straps.

4. The chassis for the low-gravity-center hydrogen-energy heavy truck as claimed in claim 1, wherein the battery pack is fixed at the upper end of the gas cylinder frame through bolts and is lower than the upper end surface of the chassis frame.

5. The chassis for a low gravity center hydrogen heavy truck according to claim 1, wherein the BMS, PDU and low voltage battery are bolted to the upper end of the gas cylinder frame and below the upper end face of the chassis frame.

6. The chassis of claim 1, wherein the TMS is fixed to the upper end of the gas cylinder frame through a bolt and is lower than the upper end face of the chassis frame.