Suspension structure of fuel cell and vehicle

Abstract

The utility model discloses a suspension structure of a fuel cell and a vehicle, the suspension structure of the fuel cell comprises a body part, a connecting part and a limiting part, the body part is provided with a first surface and a second surface which are opposite to each other in a first direction, and the body part is provided with a suspension fixing hole; the connecting part is connected with the first surface and extends in the second direction, and a fixing point is arranged on the connecting part; the limiting part comprises a first limiting block and a second limiting block which are arranged on the second surface in a spaced mode, the first limiting block and the second limiting block extend in the second direction, and a limiting area used for connecting the upper box body and the lower box body is formed between the first limiting block and the second limiting block. Based on the structure, the first limiting block and the second limiting block which are arranged on the second surface are used for clamping the joint of the upper box body and the lower box body, the effect of rapid positioning can be achieved, shearing force borne by fasteners at the positions of the suspension fixing holes in the vibration process can be shared, and the stability and reliability of the suspension structure are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy, in particular to a suspension structure of a fuel cell and a vehicle. Background Art

[0002] With the large-scale promotion and application of fuel cell engines, the demand for small and medium-power fuel cell engines is becoming more and more urgent. As the power of fuel cells increases, the size of fuel cell engines will inevitably increase accordingly. The layout of the various parts of the fuel cell engine will significantly affect the overall size and complexity of the engine, especially for dual-stack single-system fuel cells, which are connected in the middle of the upper and lower battery stacks by a central connecting plate, and have a larger volume and higher assembly requirements. The current fuel cell suspension structure mostly adopts rubber cushions, and the stiffness can only be adjusted by adjusting the rubber material and the size of the cushion. It cannot meet complex layout requirements, and the overall vibration isolation effect is poor. At the same time, the parts are less integrated, the cost is higher, and the installation flexibility is poor. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a fuel cell suspension structure and a vehicle.

[0004] In a first aspect, an embodiment of the present application provides a suspension structure of a fuel cell, comprising:

[0005] A main body having a first surface and a second surface opposite to each other in a first direction, and a suspension fixing hole is provided on the main body;

[0006] A connecting portion connected to the first surface and extending in a second direction, wherein a fixing point is provided on the connecting portion;

[0007] a limiting portion, comprising a first limiting block and a second limiting block spaced apart on the second surface, wherein the first limiting block and the second limiting block both extend in the second direction, and a limiting area for connecting the upper box body and the lower box body is formed between the first limiting block and the second limiting block;

[0008] The first direction and the second direction form an angle, and the angle ranges from 0° to 180°.

[0009] In one embodiment, a recess is provided in the limiting area along the width direction of the main body.

[0010] In one embodiment, a first reinforcing rib and a second reinforcing rib arranged along the first direction are respectively provided on the first surface, the first reinforcing rib and the second reinforcing rib are respectively provided on both sides of the connecting portion, and one end of the first reinforcing rib and the second reinforcing rib close to the connecting portion is connected to the upper surface and the lower surface of the connecting portion.

[0011] In one embodiment, the first reinforcing rib and the second reinforcing rib are symmetrically arranged in the middle of the first surface, and the width of the cross section of the first reinforcing rib and the second reinforcing rib gradually increases in a direction approaching the connecting portion.

[0012] In one embodiment, the connecting portion comprises:

[0013] a connecting plate, one end of which is connected to the first surface, the other end of which extends in a direction away from the first surface, and the fixing point is arranged on the connecting plate;

[0014] a first connecting strip, wherein one end of the first connecting strip is connected to the first surface, the other end of the first connecting strip extends in a direction away from the first surface and is connected to the connecting plate, and the inner side of the first connecting strip is connected to a side edge of the connecting plate;

[0015] A second connecting strip, the second connecting strip is located on the opposite side of the first connecting strip, and one end of the second connecting strip is connected to the first surface, the other end of the second connecting strip extends away from the first surface and is connected to the connecting plate, and the inner side of the second connecting strip is connected to the other side of the connecting plate.

[0016] In one embodiment, a reinforcement block is provided on the inner side of the first connecting strip and the second connecting strip, and the reinforcement block is fixedly connected to the connecting plate.

[0017] In one embodiment, the lengths of the first limiting block and the second limiting block in the second direction are between 8 mm and 15 mm.

[0018] In one embodiment, the main body, the connecting portion and the limiting portion are all made of aluminum alloy.

[0019] In one embodiment, a shock absorbing member is further included, and the shock absorbing member is built into the fixing point.

[0020] In a second aspect, an embodiment of the present application further provides a vehicle, comprising the suspension structure of the fuel cell described in the first aspect.

[0021] Compared with the prior art, the above technical solution provided by the embodiment of the present application has the following beneficial effects:

[0022] By using the first limit block and the second limit block arranged on the second surface to clamp the connection between the upper box body and the lower box body, it can play a role of quick positioning, and can also share the shear force exerted on the fasteners at the suspension fixing holes during vibration, thereby improving the stability and reliability of the suspension structure; in addition, by arranging a fixed point at the connection part so that a shock absorber can be installed, when the vibration generated during the driving of the vehicle is transmitted to the suspension structure, the shock absorber installed at the fixed point can play a buffering role, which can reduce the impact on the fuel cell, protect the internal parts of the battery integrated board, and improve the safety of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a structural schematic diagram of an embodiment of a suspension structure of a fuel cell;

[0024] Figure 2 is a structural schematic diagram of a suspension structure of a fuel cell of the present application from another perspective;

[0025] Figure 3 It is a structural schematic diagram of another embodiment of a suspension structure of a fuel cell of the present application;

[0026] Figure 4 It is a structural schematic diagram of a fuel cell suspension structure in an installed state according to the present application.

[0027] Numbers in the figure:

[0028] 10. Suspension structure; 11. Main body; 11a. First surface; 11b. Second surface; 12. Connecting portion; 121. Connecting plate; 122. First connecting strip; 123. Second connecting strip; 13. First reinforcing rib; 14. Second reinforcing rib; 15. Suspension fixing hole; 16. Reinforcing block; 17. First limiting block; 18. Second limiting block; 19. Shock absorber; 20. Upper box; 30. Lower box. DETAILED DESCRIPTION

[0029] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in a specific direction, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0030] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0031] Please refer to Figure 1 and Figure 2 The embodiment of the present application provides a suspension structure 10 of a fuel cell, including a main body portion 11, a connecting portion 12 and a limiting portion.

[0032] Specifically, the main body 11 has a first surface 11a and a second surface 11b opposite to each other in a first direction, and a suspension fixing hole 15 is provided on the main body 11. The connecting portion 12 is connected to the first surface 11a and extends in the second direction, and a fixing point is provided on the connecting portion 12. The limiting portion includes a first limiting block 17 and a second limiting block 18 spaced apart on the second surface 11b, the first limiting block 17 and the second limiting block 18 both extend in the second direction, and a limiting area for connecting the upper box body 20 and the lower box body 30 is formed between the first limiting block 17 and the second limiting block 18. The first direction and the second direction form an angle, and the angle ranges from 0° to 180°.

[0033] It should be noted that the “first direction” mentioned above is for the convenience of describing the relative position of the first surface 11a and the second surface 11b. Figure 1 The "second direction" is determined according to the first direction. For details, please refer to Figure 1 in the Y direction.

[0034] Exemplarily, by setting a first limit block 17 and a second limit block 18 on the second surface 11b, and forming a restricted area between the first limit block 17 and the second limit block 18, when the suspension structure 10 is installed, the joint between the upper box body 20 and the lower box body 30 is inserted into the restricted area, and then a fastener (such as a bolt) is used to pass through the suspension fixing hole 15, so that the fixed installation of the suspension structure 10 is more convenient.

[0035] Illustratively, since the connecting portion 12 extends in the second direction so that an angle between the connecting portion 12 and the main body portion 11 is between 0° and 180°, the suspension structure 10 can better cooperate with the longitudinal beam, thereby improving the stability of the suspension structure 10, reducing the vibration transmitted to the cockpit by the fuel cell assembly, and improving the safety and comfort of the vehicle.

[0036] The suspension structure 10 of the fuel cell based on the above technical features utilizes the first limit block 17 and the second limit block 18 arranged on the second surface 11b to clamp the connection between the upper box body 20 and the lower box body 30, which can play a role in rapid positioning, and can also share the shear force exerted on the fasteners at the suspension fixing holes 15 during vibration, thereby improving the stability and reliability of the suspension structure 10; in addition, by setting a fixed point on the connecting portion 12, so that the shock absorber 19 can be installed, when the vibration generated during the driving of the vehicle is transmitted to the suspension structure 10, the shock absorber installed at the fixed point can play a buffering role, which can reduce the impact on the fuel cell, protect the internal parts of the battery integrated board, and improve the safety of the vehicle.

[0037] In one embodiment, a recessed position is provided in the limiting area along the width direction of the main body 11. In this way, when the suspension structure 10 is connected to the upper box 20 and the lower box 30, it can be better inserted into the recessed position, which can further facilitate installation.

[0038] In one embodiment, a first reinforcing rib 13 and a second reinforcing rib 14 arranged along a first direction are respectively provided on the first surface 11a, the first reinforcing rib 13 and the second reinforcing rib 14 are respectively provided on both sides of the connecting portion 12, and one end of the first reinforcing rib 13 and the second reinforcing rib 14 close to the connecting portion 12 is connected to the upper surface and the lower surface of the connecting portion 12.

[0039] For example, since the longitudinal beam of the vehicle will be subject to vibrations generated by the road surface, thereby affecting the protection of the fuel cell by the suspension structure 10, in this embodiment, the first reinforcing rib 13 and the second reinforcing rib 14 are respectively provided on both sides of the connecting portion 12, and the first reinforcing rib 13 and the second reinforcing rib 14 are fixed on the first surface 11a, so that the strength of the connecting portion 12 can be enhanced and the compressive resistance can be better.

[0040] In one embodiment, the first reinforcing rib 13 and the second reinforcing rib 14 are symmetrically arranged in the middle of the first surface 11a, and the width of the cross section of the first reinforcing rib 13 and the second reinforcing rib 14 gradually increases in the direction close to the connecting portion 12. In this way, based on the arrangement of gradually increasing the width of the cross section of the first reinforcing rib 13 and the second reinforcing rib 14 in the direction close to the connecting portion 12, the contact area between the first reinforcing rib 13, the second reinforcing rib 14 and the connecting plate 121 can be increased, thereby improving the stability of the suspension structure 10.

[0041] In one embodiment, the connecting portion 12 includes a connecting plate 121, a first connecting bar 122, and a second connecting bar 123. One end of the connecting plate 121 is connected to the first surface 11a, and the other end of the connecting plate 121 extends in a direction away from the first surface 11a, and the fixing point is provided on the connecting plate 121. One end of the first connecting bar 122 is connected to the first surface 11a, and the other end of the first connecting bar 122 extends in a direction away from the first surface 11a and is connected to the connecting plate 121, and the inner side of the first connecting bar 122 is connected to one side of the connecting plate 121. The second connecting bar 123 is located on the opposite side of the first connecting bar 122, and one end of the second connecting bar 123 is connected to the first surface 11a, and the other end of the second connecting bar 123 extends in a direction away from the first surface 11a and is connected to the connecting plate 121, and the inner side of the second connecting bar 123 is connected to the other side of the connecting plate 121.

[0042] Exemplarily, by respectively providing a first connecting bar 122 and a second connecting bar 123 on both sides of the connecting plate 121, and both the first connecting bar 122 and the second connecting bar 123 are connected to the first surface 11a of the main body 11, so that the strength of the connecting plate 121 can be enhanced, the overall stability of the suspension structure 10 can be improved.

[0043] In one embodiment, a reinforcing block 16 is provided inside the first connecting bar 122 and the second connecting bar 123, and the reinforcing block 16 is fixedly connected to the connecting plate 121. In this way, by providing the reinforcing block 16 inside the first connecting bar 122 and the second connecting bar 123, the structural strength of the first connecting bar 122 and the second connecting bar 123 can be strengthened, thereby further enhancing the overall strength of the suspension structure 10.

[0044] In one embodiment, the length of the first limit block 17 and the second limit block 18 in the second direction is between 8 mm and 15 mm. For example, the length of the first limit block 17 and the second limit block 18 is set within the above range in order to make the connection between the upper box body 20 and the box body more secure and avoid falling off.

[0045] In one embodiment, the main body 11, the connecting portion 12 and the limiting portion are all made of aluminum alloy, so that the strength of the suspension structure 10 can be ensured while removing excess material, thereby effectively reducing the overall mass of the suspension structure 10.

[0046] Please refer to Figure 3In one embodiment, a shock absorber 19 is further included, and the shock absorber 19 is built into the fixed point. For example, since the vehicle body will transmit the vibration generated by road bumps to the suspension structure 10, and then to the fuel cell, affecting the precision parts inside the fuel cell integrated board, in this embodiment, by arranging the shock absorber 19 in the fixed point, the vibration energy transmitted by the longitudinal beam can be buffered, which can effectively reduce the impact of the vehicle body vibration on the fuel cell, and improve the reliability of the suspension structure 10.

[0047] This embodiment further provides a vehicle, comprising the fuel cell suspension structure 10 in the above embodiment.

[0048] According to the utility model, the vehicle is provided with the suspension structure 10 of the fuel cell in the above embodiment. Since the vehicle is provided with the suspension structure 10 of the fuel cell in the above embodiment, the first limit block 17 and the second limit block 18 provided on the second surface 11b are used to clamp the connection between the upper box body 20 and the lower box body 30, which can play a role in rapid positioning and can also share the shear force exerted on the fasteners at the suspension fixing holes 15 during vibration, thereby improving the stability and reliability of the suspension structure 10.

[0049] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A fuel cell suspension structure, characterized in that: include: A main body having a first surface and a second surface opposite to each other in a first direction, and a suspension fixing hole is provided on the main body; A connecting portion connected to the first surface and extending in a second direction, wherein a fixing point is provided on the connecting portion; a limiting portion, comprising a first limiting block and a second limiting block spaced apart on the second surface, wherein the first limiting block and the second limiting block both extend in the second direction, and a limiting area for connecting the upper box body and the lower box body is formed between the first limiting block and the second limiting block; The first direction and the second direction form an angle, and the angle ranges from 0° to 180°.

2. The fuel cell suspension structure according to claim 1, characterized in that: A recessed position is provided in the limiting area along the width direction of the main body.

3. The fuel cell suspension structure according to claim 1, characterized in that: The first surface is provided with a first reinforcing rib and a second reinforcing rib arranged along the first direction, respectively. The first reinforcing rib and the second reinforcing rib are respectively provided on both sides of the connecting portion, and one end of the first reinforcing rib and the second reinforcing rib close to the connecting portion is connected to the upper surface and the lower surface of the connecting portion.

4. The fuel cell suspension structure according to claim 3, characterized in that: The first reinforcing rib and the second reinforcing rib are symmetrically arranged in the middle of the first surface, and the widths of the cross sections of the first reinforcing rib and the second reinforcing rib gradually increase in a direction approaching the connecting portion.

5. The fuel cell suspension structure according to claim 1, characterized in that: The connecting portion comprises: a connecting plate, one end of which is connected to the first surface, the other end of which extends in a direction away from the first surface, and the fixing point is arranged on the connecting plate; a first connecting strip, wherein one end of the first connecting strip is connected to the first surface, the other end of the first connecting strip extends in a direction away from the first surface and is connected to the connecting plate, and the inner side of the first connecting strip is connected to a side edge of the connecting plate; A second connecting strip, the second connecting strip is located on the opposite side of the first connecting strip, and one end of the second connecting strip is connected to the first surface, the other end of the second connecting strip extends away from the first surface and is connected to the connecting plate, and the inner side of the second connecting strip is connected to the other side of the connecting plate.

6. The fuel cell suspension structure according to claim 5, characterized in that: Reinforcement blocks are provided on the inner sides of the first connection strip and the second connection strip, and the reinforcement blocks are fixedly connected to the connection plate.

7. The fuel cell suspension structure according to claim 1, characterized in that: The lengths of the first limiting block and the second limiting block in the second direction are between 8 mm and 15 mm.

8. The fuel cell suspension structure according to claim 1, characterized in that: The main body, the connecting part and the limiting part are all made of aluminum alloy.

9. The fuel cell suspension structure according to claim 1, characterized in that: A shock absorbing member is also included, and the shock absorbing member is built into the fixing point.

10. A vehicle, characterized in that: A fuel cell suspension structure comprising the fuel cell suspension structure according to any one of claims 1 to 9.

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