CN115042861A

CN115042861A - Chassis structure and vehicle

Info

Publication number: CN115042861A
Application number: CN202210789283.7A
Authority: CN
Inventors: 裴廷帅; 谭国勇; 王彦刚; 张朕博; 关越
Original assignee: FAW Jiefang Automotive Co Ltd
Current assignee: FAW Jiefang Automotive Co Ltd
Priority date: 2022-07-06
Filing date: 2022-07-06
Publication date: 2022-09-13

Abstract

The invention relates to a chassis structure and a vehicle, comprising: a frame extending lengthwise in a first direction; a fuel cell engine mounted on the frame; the power battery is arranged on the frame; the hydrogen storage pieces comprise two hydrogen storage pieces which are respectively arranged on two opposite sides of the frame; the heat dissipation assembly comprises a fuel cell radiator, a power cell radiator and a motor radiator which are all arranged on the frame; the fuel cell radiator is positioned on one side of the fuel cell engine, which deviates from the power cell, the power cell radiator and the motor radiator are both positioned on one side of the power cell, which deviates from the fuel cell engine, and the power cell radiator and the motor radiator are respectively arranged on two opposite sides of the frame. The chassis structure can improve the space utilization rate of the container, and can also reduce the vehicle center and improve the safety of the vehicle. And the chassis structure adopts three sets of cooling systems to respectively meet the heat dissipation requirements of a fuel cell engine, a power battery and a motor, and the heat dissipation effect is better.

Description

Chassis structure and vehicle

Technical Field

The invention relates to the technical field of hydrogen energy vehicles, in particular to a chassis structure and a vehicle.

Background

The fuel cell engine is a device which takes hydrogen and oxygen as raw fuel and generates electric energy through a series of internal electrochemical reactions of the fuel. The main raw fuel of the fuel cell engine is hydrogen and oxygen, the main components of the discharged tail exhaust gas are water, hydrogen and oxygen, and the tail exhaust gas does not contain gas which can pollute the environment.

A hydrogen fuel cell vehicle is a vehicle using electric power generated by a fuel cell engine as power, and has a power cell, a hydrogen storage tank cooling system, and the like that are associated with the fuel cell engine. The conventional hydrogen fuel cell vehicle generally adopts a back-type layout, namely, a fuel cell engine is arranged at the engine of the conventional diesel vehicle, and a power battery, a hydrogen storage pipe, a cooling system and other supporting devices are arranged between a cab and a container.

Although the hydrogen fuel cell automobile with the back-type layout can be directly refitted on the existing vehicle chassis, the power battery, the hydrogen storage pipe, the cooling system and other matching devices are arranged between the cab and the container, so that the mounting space of the container is occupied, and the cargo carrying capacity of the hydrogen fuel cell automobile is influenced.

Disclosure of Invention

In view of the above, it is necessary to provide a chassis structure and a vehicle that improve the above-mentioned drawbacks, in order to solve the problem that a hydrogen fuel cell vehicle having a rear-back layout occupies an installation space of a cargo box.

A chassis structure comprising:

a frame extending lengthwise in a first direction;

a fuel cell engine mounted on the frame;

the power battery is arranged on the frame and is arranged at intervals with the fuel cell engine in the first direction;

the hydrogen storage pieces comprise two hydrogen storage pieces which are respectively arranged on two opposite sides of the frame in the first direction;

the heat dissipation assembly comprises a fuel cell radiator, a power cell radiator and a motor radiator which are all arranged on the frame; the fuel cell radiator is located one side of the fuel cell engine, which deviates from the power cell, the power cell radiator and the motor radiator are both located on one side of the power cell engine, which deviates from the fuel cell engine, and the power cell radiator and the motor radiator are respectively installed on the two opposite sides of the frame in the first direction.

In one embodiment, the chassis structure further comprises two wheel assemblies arranged on the frame at intervals along the first direction, and the two hydrogen storage pieces are located between the two wheel assemblies.

In one embodiment, the power battery radiator and the motor radiator are both located on a side of one of the wheel assemblies facing away from the other wheel assembly.

In one embodiment, the chassis structure further comprises an all-in-one controller mounted on the frame, and the all-in-one controller is located between the power battery radiator and the motor radiator.

In one embodiment, the frame comprises two longitudinal beams extending lengthwise in the first direction, and the two longitudinal beams are arranged at intervals in a second direction intersecting with the first direction;

the fuel cell engine, the power battery and the fuel cell radiator are respectively and fixedly connected with the two longitudinal beams;

the two hydrogen storage pieces are respectively arranged on the two longitudinal beams; the motor radiator and the power battery radiator are respectively arranged on the two longitudinal beams.

In one embodiment, the frame further comprises a plurality of cross beams arranged at intervals along the first direction, and two ends of each cross beam are respectively connected with the two longitudinal beams; the power battery is arranged between two cross beams.

In one embodiment, the chassis structure further comprises a battery and an air cleaner; the storage battery and the air filter are both mounted on one of the cross beams.

In one embodiment, the power battery radiator and the motor radiator both comprise a radiator body and a bracket assembly, and the radiator body is mounted on the frame through the bracket assembly.

In one embodiment, the bracket assembly comprises a bracket and a support rod, wherein one end of the bracket is connected with the radiator body, and the other end of the bracket is connected with the frame;

one end of the support rod is connected with the radiator body, and the other end of the support rod is connected with the bracket or the frame.

A vehicle comprising a chassis structure as claimed in any preceding claim.

Above-mentioned chassis structure installs great fuel cell engine of volume and power battery on the frame to install the great hydrogen storage tank of same volume on the relative both sides of frame, make hydrogen storage tank, fuel cell engine and power battery's installation can not occupy the space of arranging of packing box, improve the space utilization of packing box, can also reduce the vehicle center simultaneously, improve the security of vehicle. Furthermore, the chassis structure is provided with the fuel cell radiator, the power cell radiator and the motor radiator, so that the three sets of cooling systems are adopted to meet the heat dissipation requirements of the fuel cell engine, the power cell and the motor respectively, and the heat dissipation effect is better.

Drawings

FIG. 1 is a schematic structural diagram of a vehicle according to an embodiment of the present invention;

FIG. 2 is a top view of a chassis structure of the vehicle in the embodiment of FIG. 1;

FIG. 3 is a schematic structural diagram of a radiator of a motor of the vehicle in the embodiment of FIG. 1;

fig. 4 is a schematic structural diagram of a power battery radiator of the vehicle in the embodiment of fig. 1.

A cab 100;

a frame 10; a longitudinal beam 11; a cross beam 12;

a fuel cell engine 20; a power battery 21; a wheel assembly 22; a front wheel 23; a rear wheel 24;

a hydrogen storage member 30; an all-in-one controller 31; a storage battery 32; an air cleaner 33;

a fuel cell radiator 40; a power cell heat sink 41; a motor heat sink 42; a radiator body 43; a bracket assembly 44; a bracket 45; a stay 46.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 and 2, a chassis structure according to an embodiment of the present invention includes a frame 10, a fuel cell engine 20, a power battery 21, a hydrogen storage device 30, and a heat dissipation assembly.

Frame 10 extends lengthwise in a first direction, and the two relatively bulky components, fuel cell engine 20 and power cell 21, are mounted to frame 10 at intervals in the first direction, since the two components, fuel cell engine 20 and power cell 21, occupy most of the space on frame 10. For this reason, the hydrogen storage member 30, which is also large in volume, is mounted on the side of the frame 10, so that the hydrogen storage member 30 does not occupy the installation space of the fuel cell engine 20.

Further, the hydrogen storage member 30 is installed on the side of the frame 10, so that the vehicle can simultaneously carry two hydrogen storage pipes, and the two hydrogen storage pipes are respectively located on two opposite sides of the frame 10 in the first direction, so that the vehicle can carry more hydrogen storage pipes, and the driving range of the vehicle can be increased.

The heat dissipation assembly is used for dissipating heat of the fuel cell engine 20, the power cell 21 and the motor for driving the vehicle to run, and in order to ensure the heat dissipation effect of the heat dissipation assembly, the heat dissipation assembly comprises a fuel cell radiator 40, a power cell radiator 41 and a motor radiator 42 which are all mounted on the frame 10, so that the fuel cell engine, the power cell 21 and the motor are separately dissipated through the fuel cell radiator 40, the power cell radiator 41 and the motor radiator 42.

Because the heat dissipation requirement of the fuel cell engine 20 is large, the fuel cell radiator 40 is installed on the side of the fuel cell engine 20 away from the power battery 21, so that natural wind generated when the vehicle normally runs can sequentially pass through the fuel cell radiator 40, the fuel cell engine 20 and the power battery 21, and the natural wind can take away heat of the fuel cell radiator 40 when passing through the fuel cell radiator 40, so as to cool the fuel cell radiator 40. And natural wind preferentially passes through the fuel cell radiator 40, so that the heat dissipation effect of the fuel cell radiator 40 can be improved, and the heat dissipation effect of the fuel cell radiator 40 on the fuel cell engine 20 can be further improved.

Further, in order to ensure the heat dissipation effect of the power battery radiator 41 and the motor radiator 42, the power battery radiator 41 and the motor radiator 42 are respectively mounted on two opposite sides of the frame 10 in the first direction. In this way, the power battery radiator 41 and the motor radiator 42 have sufficient space for heat dissipation and are not blocked by other components of the vehicle. In addition, the power battery radiator 41 and the motor radiator 42 both adopt a fan and condenser mode for heat dissipation, and the power battery 21 and the motor radiator 42 are installed on two sides of the frame 10, so that hot air blown out by the fan can be directly discharged out of the vehicle, and the heat dissipation effect of the power battery radiator 41 and the motor radiator 42 is improved.

Above-mentioned chassis structure installs great fuel cell engine 20 of volume and power battery 21 on frame 10 to install the great hydrogen storage tank of same volume on frame 10 both sides relative in the first direction, make the installation of hydrogen storage tank, fuel cell engine 20 and power battery 21 can not occupy the arrangement space of packing box, improve the space utilization of packing box, can also reduce the vehicle center simultaneously, improve the security of vehicle. Furthermore, the chassis structure adopts three sets of cooling systems to respectively meet the heat dissipation requirements of the fuel cell engine 20, the power cell 21 and the motor by arranging the fuel cell radiator 40, the power cell radiator 41 and the motor radiator 42, so that the heat dissipation effect is better.

Specifically to the embodiment of fig. 2, the first direction is a left-right direction.

In the embodiment of the invention, the frame 10 comprises two longitudinal beams 11 which extend lengthwise along a first direction, the two longitudinal beams 11 are arranged at intervals along a second direction, and the fuel cell engine 20, the power cell 21 and the fuel cell radiator 40 are respectively and fixedly connected with the two cross beams 12, so that the fuel cell engine 20, the power cell 21 and the fuel cell radiator 40 are arranged at the middle position of the frame 10, and the spaces at the two sides of the frame 10 can be used for installing the hydrogen storage part 30, the motor radiator 42 and the power cell radiator 41.

Specifically, the hydrogen storage member 30, the motor radiator 42, and the power cell radiator 41 are respectively mounted on one of the side members 11 so as to avoid interference with the fuel cell engine 20 and the power cell 21. Wherein, power battery radiator 41 and motor radiator 42 all install on the one side that deviates from another longeron 11 corresponding longeron 11 to make power battery radiator 41 and motor radiator 42 all can be towards the heat dissipation of the one side that deviates from longeron 11, in order to improve power battery radiator 41 and motor radiator 42's radiating efficiency. Further, two hydrogen storage members 30 are also mounted on the two side members 11, and each hydrogen storage member 30 is mounted on a side of the side member 11 facing away from the other side member 11 such that the two hydrogen storage members 30 are located on both sides of the vehicle frame 10.

In some embodiments, the chassis structure further includes two wheel assemblies 22, and the two wheel assemblies 22 are disposed on the frame 10 and spaced apart along the first direction. One of the wheel assemblies 22 includes two front wheels 23 disposed on opposite sides of the frame 10, the two front wheels 23 being connected by an electric drive axle mounted on the frame 10. The other wheel assembly 22 includes two rear wheels 24 disposed on opposite sides of the frame 10, the two rear wheels 24 being connected by an electric drive axle mounted to the frame 10.

In which the hydrogen storage member 30 is disposed between two wheel assemblies 22, that is, between the front and

rear wheels

23 and 24, in order to enable the vehicle to mount the hydrogen storage member 30 of a larger capacity. In actual use, the front wheels 23 and the rear wheels 24 divide the lateral space of the frame 10 into three parts, namely a first part, a second part and a third part, wherein the first part is required to be used for installing the cab 100, and the rear wheels 24 are required to be close to the tail part of the vehicle to ensure the stability of the chassis structure, so that the third part has smaller space. It can be seen that, among the three portions, the space of the second portion is the largest, and for this reason, installing the hydrogen storage member 30 in the second portion, i.e., between the front wheel 23 and the rear wheel 24, enables the hydrogen storage member 30 having a large volume to be also installed on the frame 10, and directly improves the driving range of the vehicle by installing the hydrogen storage member 30 having a large volume.

Further, in order to allow the space between the front wheel 23 and the rear wheel 24 to be entirely used for mounting the hydrogen storage members 30, both the power battery radiator 41 and the motor radiator 42 are mounted on the side of one of the wheel assemblies 22 facing away from the other wheel assembly 22, that is, both the power battery radiator 41 and the motor radiator 42 are located in the first portion or the third portion, which is inconvenient for mounting the power battery radiator 41 and the motor radiator 42 due to the fact that the vehicle needs to mount a foot board or the like on the first portion during actual use. For this reason, the power battery radiator 41 and the motor radiator 42 may be installed in the third portion, so that the installation of the power battery radiator 41 and the motor radiator 42 does not occupy the installation space of the hydrogen storage member 30, and also has a good heat dissipation effect.

Further, the chassis structure still includes the all-in-one controller 31 of installing on frame 10, and all-in-one controller 31 refers to and integrates electrical equipment such as high voltage distribution box, motor controller together, because the circuit on the all-in-one controller 31 is more, therefore often need overhaul all-in-one controller 31. For this reason, the all-in-one controller 31 is installed between the power battery radiator 41 and the motor radiator 42, and since the motor radiator 42 and the power battery radiator 41 are close to the rear of the vehicle, the all-in-one controller 31 is also installed at the rear of the vehicle, so that the maintenance personnel can conveniently overhaul the all-in-one controller 31.

More closely, because motor radiator 42 and power battery radiator 41 install on two longerons 11, so alright with unifying controller 31 more and install between two longerons 11 for the installation of unifying controller 31 more does not occupy the installation space of other parts, also can make the chassis structure compacter simultaneously, and space utilization is higher.

In the embodiment of the present invention, referring to fig. 3 and 4, each of the power battery radiator 41 and the motor radiator 42 includes a radiator body 43 and a bracket assembly 44, the radiator body 43 is mounted on the frame 10 through the bracket assembly 44, and compared with the case that the radiator body 43 is directly mounted on the frame 10, the radiator body 43 is mounted through the bracket assembly 44, so that the radiator body 43 can be mounted more flexibly, and the bracket assembly 44 can also have a shock absorption effect on the radiator body 43.

Specifically, the bracket assembly 44 includes a bracket 45 and a stay 46, one end of the bracket 45 is connected to the radiator body 43, and the other end is connected to the vehicle frame 10, the weight of the radiator body 43 is borne by the bracket 45, and the radiator body 43 is suspended on one side of the vehicle frame 10, so as to improve the heat dissipation effect of the radiator body 43 by means of suspension.

Further, the one end of vaulting pole 46 links to each other with radiator body 43, and the other end links to each other with bracket 45 or frame 10, and the buffering through vaulting pole 46 can restrict radiator body 43's swing to play the absorbing effect to radiator body 43, so, vaulting pole 46 cooperation bracket 45 not only can guarantee radiator body 43's installation fastness, also can play good shock attenuation effect to radiator body 43 simultaneously.

In some embodiments, the frame 10 further includes a plurality of cross members 12 spaced apart along the first direction, and each cross member 12 is connected at both ends to two of the side members 11. Since the power battery 21 is also installed between the two longitudinal beams 11, in order to avoid interference of the cross beams 12 with the installation of the power battery 21, the power battery 21 is installed between two of the cross beams 12.

In the embodiment, the chassis structure further includes a battery 32, an air cleaner 33, and a controller, and the battery 32, the air cleaner 33, and the controller are all mounted on one of the cross beams 12. Therefore, the storage battery 32, the air filter 33 and the controller are mounted on the cross beam 12 in the same volume, so that the mounting position on the longitudinal beam 11 can not be occupied, the chassis structure is more compact, and the space utilization rate is higher.

Specifically, the air cleaner 33 and the battery 32 are mounted on the cross member 12 between the fuel cell engine 20 and the power cell 21, so that the chassis structure can be made more compact without the air cleaner 33 and the battery 32 occupying the installation space of the fuel cell engine 20 and the power cell 21.

Furthermore, other accessories such as a steering oil pump, a brake air compressor, an air conditioner compressor and the like on the vehicle can be reasonably arranged in the vacant space on the chassis structure according to the requirements of the corresponding system performance, the pipeline wiring harness and the like.

An embodiment of the present invention further provides a vehicle, including the chassis structure in any of the above embodiments, and since the vehicle includes all technical features of the chassis structure, the vehicle has all technical effects of the chassis structure, and details are not repeated herein.

The chassis structure at least has the following advantages:

install great fuel cell engine 20 of volume and power battery 21 on frame 10 to install the great hydrogen storage tank of same volume on the relative both sides of frame 10, make the installation of hydrogen storage tank, fuel cell engine 20 and power battery 21 can not occupy the arrangement space of packing box, improve the space utilization of packing box, can also reduce the vehicle center simultaneously, improve the security of vehicle. Furthermore, the chassis structure adopts three sets of cooling systems to respectively meet the heat dissipation requirements of the fuel cell engine 20, the power cell 21 and the motor by arranging the fuel cell radiator 40, the power cell radiator 41 and the motor radiator 42, so that the heat dissipation effect is better.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A chassis structure, characterized in that it comprises:

a frame (10) extending lengthwise in a first direction;

a fuel cell engine (20) mounted on the frame (10);

the power battery (21) is arranged on the frame (10) and is arranged at an interval with the fuel cell engine (20) in the first direction;

the hydrogen storage members (30) comprise two, which are respectively arranged on two opposite sides of the frame (10) in the first direction;

the heat dissipation assembly comprises a fuel cell radiator (40), a power cell radiator (41) and a motor radiator (42) which are all arranged on the frame (10); the fuel cell radiator (40) is located on one side, deviating from the power cell (21), of the fuel cell engine (20), the power cell radiator (41) and the motor radiator (42) are located on one side, deviating from the fuel cell engine (20), of the power cell (21), and the power cell radiator (41) and the motor radiator (42) are respectively installed on two opposite sides, in the first direction, of the frame (10).

2. The chassis structure according to claim 1, further comprising two wheel assemblies (22) spaced apart along the first direction on the frame (10), wherein the two hydrogen storage members (30) are each located between the two wheel assemblies (22).

3. An undercarriage arrangement according to claim 2 wherein the power cell radiator (41) and the motor radiator (42) are both located on a side of one of the wheel assemblies (22) facing away from the other wheel assembly (22).

4. The chassis structure according to claim 3, further comprising an all-in-one controller (31) mounted on the frame (10), the all-in-one controller (31) being located between the power cell radiator (41) and the motor radiator (42).

5. The chassis structure according to claim 1, wherein said frame (10) comprises two longitudinal beams (11) extending lengthwise in said first direction, said two longitudinal beams (11) being spaced apart in a second direction intersecting said first direction;

the fuel cell engine (20), the power cell (21) and the fuel cell radiator (40) are respectively and fixedly connected with the two longitudinal beams (11);

the two hydrogen storage pieces (30) are respectively arranged on the two longitudinal beams (11); the motor radiator (42) and the power battery radiator (41) are respectively arranged on the two longitudinal beams (11).

6. The chassis structure according to claim 5, wherein the frame (10) further comprises a plurality of cross beams (12) arranged at intervals along the first direction, and both ends of each cross beam (12) are respectively connected with the two longitudinal beams (11); the power battery (21) is arranged between two cross beams (12).

7. Chassis structure according to claim 6, characterized in that it further comprises a battery (32) and an air filter (33); the storage battery (32) and the air filter (33) are both mounted on one of the cross beams (12).

8. Chassis arrangement according to claim 1, wherein said power cell radiator (41) and said electric machine radiator (42) each comprise a radiator body (43) and a bracket assembly (44), said radiator body (43) being mounted on said frame (10) by means of said bracket assembly (44).

9. The chassis structure according to claim 8, wherein the bracket assembly (44) comprises a bracket (45) and a stay (46), one end of the bracket (45) being connected to the radiator body (43) and the other end being connected to the frame (10);

one end of the stay bar (46) is connected with the radiator body (43), and the other end is connected with the bracket (45) or the frame (10).

10. A vehicle, characterized in that it comprises a chassis structure according to any one of claims 1-9.