CN215662946U

CN215662946U - Lightweight vehicle-mounted hydrogen system frame structure

Info

Publication number: CN215662946U
Application number: CN202121486089.9U
Authority: CN
Inventors: 季丽君; 王凯; 陈大华
Original assignee: Chery and Wanda Guizhou Bus Co Ltd
Current assignee: Chery and Wanda Guizhou Bus Co Ltd
Priority date: 2021-07-01
Filing date: 2021-07-01
Publication date: 2022-01-28
Anticipated expiration: 2031-07-01

Abstract

The utility model discloses a lightweight vehicle-mounted hydrogen system frame structure, belonging to the technical field of vehicle-mounted hydrogen systems of fuel cell vehicles; it comprises a bottom bracket frame arranged on a plane; an auxiliary frame is also arranged at one side edge of the bottom bracket frame; the bottom bracket frame and the auxiliary frame are both rectangular frame structures made of lightweight section bars; a plurality of bearing longitudinal beams are arranged in the frame of the bottom bracket frame; the bearing longitudinal beam is of a straight pipe structure processed by C-shaped channel steel, and the top of the bearing longitudinal beam is provided with an arc-shaped groove for placing a saddle of a hydrogen fuel cylinder; a supporting panel is also arranged on one side of the auxiliary frame facing to the outside; the supporting panel is made of aluminum alloy or composite material; a controller cover plate is arranged on the support panel; the utility model effectively solves the problems of high weight of the whole vehicle and poor fuel economy caused by the overweight structure of the conventional frame body for bearing the hydrogen fuel gas cylinder.

Description

Lightweight vehicle-mounted hydrogen system frame structure

Technical Field

The utility model relates to the technical field of vehicle-mounted hydrogen systems of fuel cell vehicles, in particular to a lightweight vehicle-mounted hydrogen system frame structure.

Background

The fuel cell taking hydrogen energy as an energy source is better applied and researched in the field of new energy automobiles due to the characteristics of high use efficiency, no pollution and the like, and has a plurality of advantages compared with the traditional and pure electric automobiles. The vehicle-mounted hydrogen supply system is an important part of a fuel cell automobile and provides fuel supply for a fuel cell engine. The current vehicle-mounted hydrogen is mainly high-pressure gaseous hydrogen, and the mass of a vehicle-mounted hydrogen system of a fuel cell passenger car for storing 24kg of hydrogen is approximately 1000kg, so that the overall quality of the whole car is high, and the fuel economy is poor.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: the utility model provides a on-vehicle hydrogen system frame construction of lightweight to solve the conventional support body structure quality that bears the weight of hydrogen fuel gas cylinder overweight, thereby lead to the reorganization high quality of whole car, the not good problem of fuel economy.

In order to solve the problems, the utility model provides the following technical scheme:

a lightweight vehicular hydrogen system frame structure; it comprises a bottom bracket frame arranged on a plane; an auxiliary frame is also arranged at one side edge of the bottom bracket frame; the bottom bracket frame and the auxiliary frame are both rectangular frame structures made of lightweight section bars; a plurality of bearing longitudinal beams are arranged in the frame of the bottom bracket frame; the bearing longitudinal beam is of a straight pipe structure processed by C-shaped channel steel, and the top of the bearing longitudinal beam is provided with an arc-shaped groove for placing a saddle of a hydrogen fuel cylinder; a supporting panel is also arranged on one side of the auxiliary frame facing to the outside; the supporting panel is made of aluminum alloy or composite material; a controller cover plate is mounted on the support panel.

Preferably, the light-weight section bar for manufacturing the bottom bracket frame and the auxiliary frame is of a pipe structure with a rectangular section, the wall thickness of the rectangular pipe is 2-5 mm, and the rectangular pipe is made of one of 6061 aluminum alloy, GFRP, CFRP and magnesium alloy.

Preferably, four lifting lugs are further arranged on the lightweight profile frame parallel to the bearing longitudinal beam on the front side and the rear side of the bottom bracket frame; the four lifting lugs are correspondingly arranged at four included angle positions inside the bottom bracket frame, and lifting holes are formed in the lifting lugs.

Preferably, 8 fastening mounting brackets are further fixed on the side walls of the bottom bracket frame and the load-bearing longitudinal beam; the four fastening mounting brackets are arranged on the light-weight section bar framework which is perpendicular to the bearing longitudinal beam and arranged at the left side and the right side of the bottom bracket framework and are adjacent to the lifting lugs; the other four fastening and mounting brackets are uniformly mounted on the load-bearing longitudinal beam.

Preferably, the bearing longitudinal beam adopts a channel steel structure of Q345 or higher, and a plurality of reinforcing plates are arranged in the channel structure of the bearing longitudinal beam.

Preferably, a reinforcing beam is further arranged in the middle of the bottom bracket frame; the middle part of the bearing longitudinal beam is provided with a positioning groove corresponding to the cross section shape of the reinforcing beam, and the reinforcing beam is vertical to and penetrates through the bearing longitudinal beam for installation.

Preferably, the middle part of the supporting panel is provided with a wire passing hole; and a pressure reducing valve and a discharge port are also arranged at one end of the support panel facing to the outside.

Preferably, a plurality of reinforcing ribs are arranged between the bottom bracket frame and the auxiliary frame and between the bottom bracket frame and the bearing longitudinal beam.

The utility model has the beneficial effects that:

compared with the traditional design, the light-weight vehicle-mounted hydrogen system frame designed by the utility model reduces weight by 25% -30%, and reduces the whole vehicle preparation quality while ensuring the strength of the vehicle-mounted hydrogen system frame, thereby improving fuel economy.

Drawings

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

FIG. 2 is a schematic view of the device of FIG. 1 on the support panel side;

description of reference numerals: 1. the device comprises a bottom support frame, 2, an auxiliary frame, 3, a bearing longitudinal beam, 301, a reinforcing plate, 4, a supporting panel, 5, a controller cover plate, 6, a lifting lug, 7, a fastening mounting support, 8, a reinforcing beam, 9, a wire passing hole, 10, a pressure reducing valve, 11 and a discharge hole.

Detailed Description

The utility model will be further described with reference to the following drawings and specific embodiments:

example 1:

referring to fig. 1, the present embodiment provides a lightweight vehicle-mounted hydrogen system frame structure; it comprises a bottom bracket frame 1 arranged on a plane; an auxiliary frame 2 is also arranged at one side edge of the bottom bracket frame 1; the bottom bracket frame 1 and the auxiliary frame 2 are both rectangular frame structures made of lightweight section bars; a plurality of bearing longitudinal beams 3 are arranged in the frame of the bottom bracket frame 1; the bearing longitudinal beam 3 is a straight pipe structure processed by C-shaped channel steel, and an arc-shaped groove for placing a saddle of a hydrogen fuel cylinder is arranged at the top of the bearing longitudinal beam 3; a supporting panel 4 is also arranged on one side of the auxiliary frame 2 facing the outside; the supporting panel (7) is made of 6061 aluminum alloy with the thickness of 1.5 mm; a controller cover 5 is mounted on the support panel 4.

The lightweight section bars for manufacturing the bottom bracket frame and the auxiliary frame are of a pipe structure with a rectangular cross section, the wall thickness of the rectangular pipe is 3mm, and the rectangular pipe is made of CFRP materials. In the embodiment, the rectangular pipes are connected by adopting various modes such as welding, gluing/riveting hybrid connection, gluing/screwing hybrid connection and the like;

four lifting lugs 6 are also arranged on the lightweight section frame parallel to the bearing longitudinal beam 3 at the front side and the rear side of the bottom bracket frame 1; the four lifting lugs are correspondingly arranged at four included angle positions inside the bottom bracket frame 1, and lifting holes are further formed in the lifting lugs 6. In the embodiment, the lifting lug is made of 6061 aluminum alloy, the wall thickness is 4-6 mm, and the aperture of the lifting hole is 20-60 mm; the lifting lugs 6 are arranged for auxiliary lifting for mounting and dismounting of the vehicle-mounted hydrogen system.

8 fastening mounting brackets 7 are fixed on the side walls of the bottom bracket frame 1 and the bearing longitudinal beam 3; the four fastening mounting brackets 7 are arranged on the lightweight profile frame which is perpendicular to the bearing longitudinal beam 3 and arranged on the left side and the right side of the bottom bracket frame 1, and are adjacent to the lifting lugs 6; four further fastening mounting brackets 7 are uniformly mounted on the load carrier 3. The fastening and mounting bracket 7 in this embodiment is fixed by welding.

The bearing longitudinal beam 3 adopts a Q345-grade channel steel structure, and the channel steel structure can be selected or higher than the Q345-grade channel steel structure on the premise of meeting the use requirement, and a plurality of reinforcing plates 301 are further arranged in the channel structure of the bearing longitudinal beam 3. The stress condition of the bearing longitudinal beam is considered, and the vehicle-mounted hydrogen system is not damaged or the displacement does not exceed 13mm after being impacted under the conditions of emergency braking, collision and the like in the whole running process of the fuel cell automobile; therefore, channel steel is adopted after the comprehensive weight is considered, and the reinforcing plate is arranged to correspondingly improve the strength.

A stiffening beam 8 is also arranged in the middle of the bottom bracket frame 1; the middle part of the bearing longitudinal beam 3 is provided with a positioning groove corresponding to the cross section shape of the stiffening beam 8, and the stiffening beam 8 is vertical and passes through the bearing longitudinal beam 3 for installation.

The middle part of the supporting panel 4 is provided with a wire passing hole 9; and a pressure reducing valve 10 and a relief port 11 are further mounted on one end of the support panel 4 facing outward. The wiring holes 9 are arranged, so that wiring harnesses connected with a controller, such as a hydrogen bottle, a sensor and the like, can be wired and fixed on the inner side of the vehicle-mounted hydrogen system frame, damage of scratching, scraping and the like of peripheral wiring in the system transportation and installation process is avoided, and the appearance neatness is improved; at the same time, the support panel 4 also functions to fix the pressure reducing valve 10, the relief port 11, and the like.

A plurality of reinforcing ribs are arranged between the bottom bracket frame 1 and the auxiliary frame 2 and between the bottom bracket frame 1 and the bearing longitudinal beam 3. All use bolt assembly to connect fixedly between strengthening rib and the rectangle tubular product that closes on in this embodiment.

The lightweight vehicle-mounted hydrogen system frame designed by the design method disclosed in the embodiment is reduced by 30% compared with the traditional design.

Example 2

In the present embodiment, the support panel 7 is made of 6061 aluminum alloy having a thickness of 2 mm; meanwhile, the lightweight section bars for manufacturing the bottom bracket frame and the auxiliary frame are of a pipe structure with a rectangular section, and the rectangular pipe is made of 6061 aluminum alloy material with the wall thickness of 5 mm; the rest of the structure design is the same as that of embodiment 1, and will not be described herein,

compared with the traditional design, the light-weight vehicle-mounted hydrogen system frame designed by the design method disclosed in the embodiment has the weight reduced by 25%.

Example 3

In the present embodiment, the support panel 7 is made of 6061 aluminum alloy with a thickness of 3 mm; meanwhile, the lightweight section bars for manufacturing the bottom bracket frame and the auxiliary frame are of pipe structures with rectangular sections, and the rectangular pipes are made of GFRP materials with the wall thickness of 2 mm; the rest of the structure design is the same as that of embodiment 1, and will not be described herein,

compared with the traditional design, the light-weight vehicle-mounted hydrogen system frame designed by the design method disclosed in the embodiment has the weight reduced by 28%.

It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the utility model, and these modifications and improvements are also considered to be within the scope of the utility model.

Claims

1. The utility model provides an on-vehicle hydrogen system frame construction of lightweight which characterized in that: it comprises a bottom bracket frame (1) arranged on a plane; an auxiliary frame (2) is also arranged at one side edge of the bottom bracket frame (1); the bottom bracket frame (1) and the auxiliary frame (2) are both rectangular frame structures made of lightweight section bars; a plurality of bearing longitudinal beams (3) are arranged in the frame of the bottom bracket frame (1); the bearing longitudinal beam (3) is of a straight pipe structure processed by C-shaped channel steel, and an arc-shaped groove for placing a saddle of a hydrogen fuel cylinder is formed in the top of the bearing longitudinal beam (3); a supporting panel (4) is also arranged on one side of the auxiliary frame (2) facing to the outside; the supporting panel (4) is made of aluminum alloy or composite material; a controller cover plate (5) is arranged on the support panel (4).

2. The light-weighted vehicle-mounted hydrogen system frame structure according to claim 1, characterized in that: the lightweight section bar for manufacturing the bottom bracket frame (1) and the auxiliary frame (2) is of a pipe structure with a rectangular section, the wall thickness of the rectangular pipe is 2-5 mm, and the rectangular pipe is made of one of 6061 aluminum alloy, GFRP, CFRP and magnesium alloy.

3. The light-weighted vehicle-mounted hydrogen system frame structure according to claim 1, characterized in that: four lifting lugs (6) are also arranged on the lightweight profile frame parallel to the bearing longitudinal beam (3) at the front side and the rear side of the bottom bracket frame (1); the four lifting lugs are correspondingly arranged at four included angle positions inside the bottom bracket frame (1), and lifting holes are further formed in the lifting lugs (6).

4. The light-weighted vehicle-mounted hydrogen system frame structure according to claim 1, characterized in that: 8 fastening mounting brackets (7) are further fixed on the side walls of the bottom bracket frame (1) and the bearing longitudinal beam (3); the four fastening and mounting brackets (7) are arranged on the light-weight section bar framework, which is perpendicular to the bearing longitudinal beam (3), on the left side and the right side of the bottom bracket frame (1), and are arranged adjacent to the lifting lugs (6); the other four fastening and mounting brackets (7) are uniformly arranged on the load-bearing longitudinal beam (3).

5. The light-weighted vehicle-mounted hydrogen system frame structure according to claim 1, characterized in that: the bearing longitudinal beam (3) adopts a Q345 or channel steel structure higher than the grade, and a plurality of reinforcing plates (301) are arranged in the channel structure of the bearing longitudinal beam (3).

6. The light-weighted vehicle-mounted hydrogen system frame structure according to claim 1, characterized in that: a reinforcing beam (8) is also arranged in the middle of the bottom bracket frame (1); the middle part of the bearing longitudinal beam (3) is provided with a positioning groove corresponding to the cross section shape of the reinforcing beam (8), and the reinforcing beam (8) is vertical and passes through the bearing longitudinal beam (3) for installation.

7. The light-weighted vehicle-mounted hydrogen system frame structure according to claim 1, characterized in that: the middle part of the supporting panel (4) is provided with a wire passing hole (9); and a pressure reducing valve (10) and a discharge port (11) are also mounted on one end of the support panel (4) facing the outside.

8. The light-weighted vehicle-mounted hydrogen system frame structure according to claim 1, characterized in that: a plurality of reinforcing ribs are arranged between the bottom bracket frame (1) and the auxiliary frame (2) and between the bottom bracket frame (1) and the bearing longitudinal beam (3).