阅读说明：本技术 电动汽车及其燃料电池系统布置结构 (Electric automobile and fuel cell system arrangement structure thereof ) 是由 刘毅 于 2018-07-19 设计创作，主要内容包括：本发明公开一种电动汽车及其燃料电池系统布置结构,燃料电池系统的燃料电池电堆布置在副仪表台前方、中控台下方的位置,其质心位于汽车前轴的后侧；且所述燃料电池电堆通过车身地板和前围板固定。通过合理布置该燃料电池系统的主要构成,在充分利用底盘空间的基础上,有效提升整车性能。一方面整车轴荷比更加合理,车辆的操控性得以有效提高；同时,整个系统的结构布置合理、适当,确保空间利用率的最大化。(The invention discloses an electric automobile and a fuel cell system arrangement structure thereof.A fuel cell stack of a fuel cell system is arranged in front of an auxiliary instrument desk and below a center console, and the mass center of the fuel cell stack is positioned at the rear side of a front axle of the automobile; and the fuel cell stack is fixed through a vehicle body floor and a front wall plate. Through the main constitution of this fuel cell system of rational arrangement, on the basis of make full use of chassis space, effectively promote whole car performance. On one hand, the axle load ratio of the whole vehicle is more reasonable, and the controllability of the vehicle is effectively improved; meanwhile, the structural arrangement of the whole system is reasonable and appropriate, and the maximization of the space utilization rate is ensured.)

1. A fuel cell system arrangement structure, the fuel cell system including a fuel cell stack, characterized in that the fuel cell stack is arranged at a position in front of a sub instrument console and below a center console, and a center of mass thereof is located at a rear side of a front axle of an automobile; and the fuel cell stack is fixed through a vehicle body floor and a front wall plate.

2. The fuel cell system arrangement of claim 1, wherein a portion of the fuel cell stack is disposed in a front compartment through an opening of the front fascia.

3. The fuel cell system arrangement structure according to claim 2, wherein a partition is provided at an opening of the front wall panel, and is disposed at a side of a portion of the fuel cell stack in the front compartment to partition a region where the fuel cell stack is located and a passenger compartment region.

4. The fuel cell system arrangement of claim 3, wherein the shroud includes a top plate and a side plate connected, the top plate being disposed in an inclined manner.

5. The fuel cell system arrangement of claim 4, wherein the top plate is angled from 2 ° to 10 ° from the horizontal.

6. The fuel cell system arrangement structure according to claim 5, wherein the plate edge portions of the partition cover are fixedly connected to the dash panel and the vehicle body floor, respectively.

7. The fuel cell system arrangement structure according to any one of claims 1 to 6, wherein a mounting bracket is provided outside the fuel cell stack, and is in damping connection with the dash panel and the vehicle body floor via the mounting bracket.

8. The fuel cell system arrangement structure according to claim 7, wherein a first reinforcing plate is provided in conformity with a stack fixing place of the dash panel, and a horizontally fixed connecting plate is provided, and a damping connection with the dash panel is formed by a threaded fastener passing through a first mounting bracket, a first damping member and the connecting plate in this order; the laminating of the pile fixed position on automobile body floor is provided with the second reinforcing plate, passes second installing support, second damping component in proper order through threaded fastener automobile body floor with the second reinforcing plate form with the damping on automobile body floor is connected.

9. The fuel cell system arrangement structure according to claim 1, wherein an air conditioner blower is provided in a front space of the dash panel on a passenger side, a hydrogen cylinder of the fuel cell system is provided at a position above a rear axle, and a battery accessory of the fuel cell system is provided on a front side of the fuel cell stack.

10. An electric vehicle comprising a fuel cell system, characterized in that the fuel cell system employs the fuel cell system arrangement structure of any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of electric automobiles, in particular to an electric automobile and a fuel cell system arrangement structure thereof.

Background

As is well known, a fuel cell converts chemical energy released by water generated by chemical reaction between hydrogen ions and oxygen (or another oxidant) into electrical energy, and is applied to products using electrical energy, such as vehicles, based on advantages of high efficiency, zero pollution, and the like of the fuel cell.

Disclosure of Invention

In order to solve the technical problems, the invention provides an electric vehicle and a fuel cell system arrangement structure thereof.

The invention provides a fuel cell system arrangement structure, which comprises a fuel cell stack, wherein the fuel cell stack is arranged in front of a secondary instrument desk and below a center console, and the center of mass of the fuel cell stack is positioned at the rear side of a front axle of an automobile; and the fuel cell stack is fixed through a vehicle body floor and a front wall plate.

Preferably, part of the fuel cell stack is placed in the front compartment through an opening of the front wall plate.

Preferably, a partition cover is arranged at the opening of the front wall plate and is arranged on one side of part of the fuel cell stack in the front cabin to partition the area where the fuel cell stack is located and the passenger cabin area.

Preferably, the partition cover comprises a top plate and a side plate which are connected, and the top plate is arranged in an inclined manner.

Preferably, the included angle between the top plate and the horizontal plane is 2-10 degrees.

Preferably, the plate edge portion of the shroud is fixedly connected to the dash panel and the vehicle body floor, respectively.

Preferably, the fuel cell stack is externally provided with a mounting bracket, and is in damping connection with the front wall plate and the vehicle body floor through the mounting bracket.

Preferably, a first reinforcing plate is attached to the pile fixing position of the front wall plate, a connecting plate fixed horizontally is arranged, and a threaded fastener sequentially penetrates through the first mounting bracket, the first damping member and the connecting plate to form damping connection with the front wall plate; the laminating of the pile fixed position on automobile body floor is provided with the second reinforcing plate, passes second installing support, second damping component in proper order through threaded fastener automobile body floor with the second reinforcing plate form with the damping on automobile body floor is connected.

Preferably, an air conditioner blower is provided in a front space of the dash panel on the passenger side, a hydrogen cylinder of the fuel cell system is provided at a position above a rear axle, and a battery attachment of the fuel cell system is provided on a front side of the fuel cell stack.

The invention provides an electric automobile which comprises a fuel cell system, wherein the fuel cell system adopts the fuel cell system arrangement structure.

Aiming at the defects of the arrangement of the existing fuel cell system, the invention develops a new method for carrying out optimization design, the fuel cell stack is arranged in the front of the auxiliary instrument desk and below the center console, and the mass center of the fuel cell stack is positioned at the rear side of the front axle of the automobile; and the fuel cell stack is fixed by the vehicle body floor and the dash panel. Compared with the prior art, the scheme has the following beneficial effects:

firstly, the influence of the weight of the electric pile on the front axle load is greatly reduced, the axle load ratio of the whole vehicle is more reasonable, and the controllability of the vehicle is effectively improved on the basis of effectively reducing the bearing load of the front axle.

Secondly, the structure arrangement of the galvanic pile is reasonable and proper, on one hand, the adjustment range of the driver seat is avoided, and the seat adjustment space is not limited; meanwhile, the electric pile does not occupy the space of the luggage compartment, and the maximization of the luggage space utilization rate is ensured.

Again, the stack is disposed at a relatively low position, which may further improve vehicle stability.

Finally, the fixed mounting structure of the electric pile utilizes the body floor and the front wall plate of the original vehicle as main supporting surfaces for fixing, the structure is simple compared with the scheme that the electric pile is arranged in the front cabin, and the light-weight design of the mounting structure can be realized.

Drawings

FIG. 1 is a side view of a fuel cell system arrangement according to an embodiment;

FIG. 2 is a top view of a fuel cell system arrangement according to an embodiment;

FIG. 3 shows a schematic diagram of axle load distribution;

FIG. 4 is a schematic illustration of the fixed relationship of the fuel cell stack;

fig. 5 is a schematic view of the fixed relationship at the front wall plate of the fuel cell stack 1;

fig. 6 is a schematic view of the fuel cell stack 1 in a fixed relationship at the floor;

FIG. 7 is a sectional view showing an assembled relationship of the partition case;

fig. 8 is a schematic view showing an assembly relationship of the air conditioner blower.

In the figure:

the fuel cell stack 1, the vehicle body floor 2, the second reinforcing plate 21, the dash panel 3, the first reinforcing plate 31, the connecting plate 32, the air inlet hole 33, the vent hole 34, the first mounting bracket 41, the second mounting bracket 42, the first damping member 51, the second damping member 52, the partition cover 6, the top plate 61, the side plate 62, the hydrogen bottle 7, the battery accessories 8, and the air conditioner blower 9.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

Without loss of generality, the present embodiment will explain in detail a solution regarding the arrangement structure of the fuel cell system, taking an electric vehicle of the external form shown in the drawings as a description subject. It should be understood that the external shape of the electric vehicle and the dimensional ratio thereof do not substantially limit the core inventive concept of the present application.

Referring to fig. 1 and 2, fig. 1 is a side view of the fuel cell system arrangement structure, and fig. 2 is a top view of the fuel cell system arrangement structure.

The fuel cell system arrangement shown in the drawings is improved and optimized. The fuel cell system comprises a fuel cell stack, fuel cell accessories, a hydrogen bottle and the like, wherein the fuel cell stack 1 is arranged in front of a secondary instrument desk and below a center console, and the center of mass of the fuel cell stack is positioned on the rear side of a front axle of an automobile; and the fuel cell stack is fixed by a vehicle body floor 2 and a dash panel 3. The position of the stack is shifted toward the rear axis to shift the position of the center of gravity backward, and refer to fig. 3, which shows a schematic diagram of the axial load distribution.

As can be seen from fig. 3, the front-rear axial charge distribution of the fuel cell stack 1 is as follows:

front axle load: f1 ═ M × b/L, rear axle load: f2 ═ M × a/L; wherein M is the pile mass, a is the pile-to-front axle distance, b is the pile-to-rear axle distance, and L is the axle distance.

Obviously, compared with an arrangement structure that the fuel cell stack is arranged in the front cabin and the position of the mass center is consistent with the position of the front shaft (a is 0), the influence of the weight of the fuel cell stack 1 on the load of the front shaft is reduced, the bearing load of the front shaft is effectively reduced, and the controllability of the vehicle is improved. Furthermore, the structure arrangement of the galvanic pile is reasonable and proper, on one hand, the adjustment range of the driver seat is avoided, and the seat adjustment space is not limited; meanwhile, the electric pile does not occupy the space of the luggage compartment, and the maximization of the luggage space utilization rate is ensured. Meanwhile, the galvanic pile is arranged in the front of the instrument desk and below the center console, and the position is relatively low, so that the vehicle stability is good.

In this scheme, the fixed mounting structure of galvanic pile has utilized the automobile body floor 2 and the preceding bounding wall 3 of former car to fix for main holding surface, and the front deck is arranged in to the opening that partial fuel cell galvanic pile 1 can pass preceding bounding wall 3 to make full use of effective space. Simple structure for the galvanic pile arranges in the front deck scheme, and light-weighted design can be realized to mounting structure, can adopt the installing support to realize that the damping between fuel cell galvanic pile 1 and preceding bounding wall 3 and automobile body floor 2 is connected, on the basis of obtaining reliable location fixed, considers the precision requirement of galvanic pile structure, and the fixed form needs improve the damping effect through damping structure.

Specifically, the fuel cell stack 1 may be provided with mounting brackets (41, 42) outside thereof, and be connected with the dash panel 3 and the vehicle body floor 2 in a damping manner via the corresponding mounting brackets. As shown in fig. 4, which shows a schematic view of the fixed relationship of the stack, the installation of the stack is mainly illustrated by the fixed point of the cowl panel 3 and the vehicle body floor 2. It is understood that the three fixing points shown in the figure are only exemplary, and can be specifically and adaptively set according to the design of a specific vehicle model as long as the function requirement of reliable connection is met.

The electric pile fixing part of the front wall plate 3 is provided with a first reinforcing plate 31 in an attaching mode, a connecting plate 32 fixed horizontally is arranged, the connecting plate 32 can be fixedly welded with the front wall plate 3 at the position where the first reinforcing plate 31 is arranged, and a damping connection with the front wall plate 3 is formed by sequentially penetrating through the first mounting bracket 41, the first damping member 51 and the connecting plate 32 through threaded fasteners; referring specifically to fig. 5, the fuel cell stack 1 is shown in a fixed relationship at the front wall plate.

The second reinforcing plate 21 is attached to the pile fixing position of the vehicle body floor 2, and passes through the second mounting bracket 42, the second damping member 52, the vehicle body floor 2 and the second reinforcing plate 21 in sequence through a threaded fastener to form damping connection with the vehicle body floor 2; referring specifically to fig. 6, the fuel cell stack 1 is shown in a fixed relationship at the floor.

It should be noted that the first damping member 51 and the second damping member 52 may be damping products using elastic rubber as a main material, or may be damping structures of other forms.

In order to prevent hydrogen from entering the passenger compartment when the hydrogen leaks, the scheme is further provided with the separation cover 6 at the opening of the front coaming 3, so that the hydrogen is effectively prevented from entering the passenger compartment to hurt human bodies. Referring to fig. 7, a sectional view of the assembly of the shield according to the present embodiment is shown.

As shown in fig. 7, the partition 6 covers a portion of the fuel cell stack 1 disposed in the front compartment on one side thereof to partition the region where the fuel cell stack is disposed and the passenger compartment region. Thereby forming physical separation, and ensuring the safety of passengers even if the problem of hydrogen leakage occurs. Similarly, the specific structure of the partition 6 can be set according to actual needs, and a sheet metal stamping process or a plastic mold forming process is adopted to make a non-porous and seamless integral part, and the plate edge part of the partition 6 is respectively and fixedly connected with the front wall plate 3 and the vehicle body floor 2, and during actual assembly, the sheet metal can be welded and the sealant can be coated at the gap, or the plastic part can be fixed on the front wall plate 3 and the vehicle body floor 2 by a gluing process.

Specifically, the partition cover 6 may include a top plate 61 and a side plate 62 connected to each other, wherein the top plate 61 is disposed in an inclined manner to provide a gas guiding function, and even if there is a small amount of hydrogen gas leakage, a path facilitating rapid upward divergence of the hydrogen gas is provided, so as to protect safety of passengers to the maximum extent.

In addition, the hydrogen cylinder 7 of the fuel cell system is disposed at a position above the rear shaft, and the battery accessories 8 of the fuel cell system are disposed at the front side of the fuel cell stack 1, establishing a rational and appropriate arrangement of the fuel cell system.

Further, based on the arrangement of the aforementioned fuel cell stack 1, an air conditioner blower 9 may be provided in the front space of the cowl 3 on the passenger side, as shown in fig. 8, which is a schematic view showing the assembly relationship of the air conditioner blower.

After the air conditioner blower 9 is moved to the front cabin, an air inlet hole 33 is formed in the lower portion of the front wall plate 3 so that an internal circulation air inlet can suck air from the passenger cabin, and an air hole 34 is formed in the upper portion of the front wall plate 3 so that a blower air conditioning ventilation pipeline can enter the passenger cabin. Specifically, the blower is generally lighter in weight, and a simple mounting bracket is designed on the front panel and fixed through bolts.

In addition to the foregoing fuel cell system arrangement structure, the present embodiment also provides an electric vehicle that employs the fuel cell system arrangement structure. The chassis, the body and the electric control system of the electric vehicle are not the core invention points of the present application, and those skilled in the art can implement the present invention based on the prior art, so the details are not described herein.

It should be noted that the above-mentioned examples provided in the present embodiment are not limited to the detailed structure shown in the drawings, and for example, three fixed points of the fuel cell stack 1 other than the three shown in the drawings may be provided as a plurality of other fixed points according to actual needs. It should be understood that the implementation of the fuel cell system arrangement according to the core concept of the present application is within the scope of the claimed application.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.