Plastic high-pressure fuel tank assembly

Abstract

The utility model discloses a plastic high-pressure fuel tank assembly which comprises a fuel tank body and first supporting rods, and the two first supporting rods distributed left and right are welded in the fuel tank body. The two second supporting rods which are distributed left and right are welded in the fuel tank body; the first supporting rod and the second supporting rod are used for providing supporting force for the fuel tank body. The first supporting rod is installed on the top of the fuel tank body, and the adapter is used for connecting a pipeline in the fuel tank body to the outside in a rotating mode. The fuel tank body can be supported through the first supporting rod and the second supporting rod respectively, so that the pressure resistance of the fuel tank body is improved, the fuel tank body can bear changed pressure, the use requirements of new energy vehicles can be further met, meanwhile, the impact resistance of the fuel tank can be improved, and the service life of the fuel tank is prolonged. Therefore, the safety performance of the fuel tank is improved, the service life of the fuel tank is prolonged, and the use safety of a vehicle is further improved.

Description

Technical Field

[0001] The utility model relates to a plastic high-pressure fuel tank assembly. Background Art

[0002] A fuel tank, i.e., a fuel storage device, has high requirements for corrosion resistance. At double working pressures, the overpressure generated must be self-decompressed through holes or safety valves. When driving on a curve, an inclined road surface or being impacted, fuel should not flow out from the liquid filling sealing cap or the pressure balance device. The fuel tank must be installed away from the engine to avoid igniting the fuel in case of a traffic accident. The fuel tank is generally used in machines driven by gasoline engines or diesel engines. A plastic fuel tank is a type of fuel tank. Its production material has changed from metal materials in the past to plastic materials currently. The use of plastic materials makes it easy to shape the fuel tank and the design is simple. Moreover, plastic itself has a small density, light weight and good corrosion resistance.

[0003] Currently, some new energy vehicles still need fuel as a fuel. For example, a plug-in hybrid electric vehicle (PHEV) generally requires a dedicated power supply pile for power supply. When the electric energy is sufficient, the vehicle is driven by an electric motor. When the electric energy is insufficient, the engine will participate in the driving or power generation link, and the participation of the engine requires fuel as a fuel. In the authorized Chinese utility model patent "Publication No.: CN205292276U, Name: Automobile Plastic Fuel Tank Assembly", a platform surface for welding an installation bracket is provided on the upper surface of the blow molded box body. When the fixed hole positions on the vehicle body are adjusted, the position of the installation bracket can also be adjusted within a certain range. After the adjustment, post-processing of the positioning holes of the installation bracket is carried out, and the accuracy requirements of the installation position are ensured by post-processing the positioning holes.

[0004] However, in the above application and the prior art, the plastic fuel tank only relies on the box body shell itself to provide compressive capacity. Since the box body shell is made of plastic, the compressive capacity of the plastic fuel tank is poor, reducing the service life and safety of the fuel tank and further affecting the safety performance of the vehicle. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the defect of poor compressive capacity of the plastic fuel tank in the prior art and provide a plastic high-pressure fuel tank assembly.

[0006] The utility model solves the above technical problem through the following technical solutions:

[0007] The utility model provides a plastic high-pressure fuel tank assembly, including a fuel tank body,

[0008] a first support rod, and two first support rods distributed left and right are welded inside the fuel tank body;

[0009] Second support rod, two second support rods distributed left and right are welded inside the fuel tank body;

[0010] The first support rod and the second support rod are used to provide support force for the fuel tank body;

[0011] Adapter, the first support rod is installed on the top of the fuel tank body, and the adapter is used to transfer the pipeline inside the fuel tank body to the outside.

[0012] In this technical solution, the first support rod and the second support rod can be used to support the fuel tank body respectively, thereby increasing the compressive capacity of the fuel tank body, enabling the fuel tank body to withstand the changed pressure, further meeting the use requirements of new energy vehicles, and at the same time increasing the impact resistance of the fuel tank, thereby enhancing the safety performance of the fuel tank, extending the service life of the fuel tank, and further increasing the safety of vehicle use.

[0013] Preferably, the first support rod includes an intermediate support column, and fixed side plates are fixedly connected to both the upper and lower ends of the intermediate support column;

[0014] Flat welding surfaces are provided on the opposite sides of the two fixed side plates, and the flat welding surfaces are connected to the fuel tank body.

[0015] In this technical solution, the first support rod can be used to support the fuel tank body and increase the compressive capacity of the fuel tank body.

[0016] Preferably, a plurality of X-shaped reinforcing frames I distributed in a circular array are connected between the two intermediate support columns;

[0017] A transverse reinforcing column I is fixedly connected to the X-shaped reinforcing frame I at an angle less than 90 degrees.

[0018] In this technical solution, the X-shaped reinforcing frame I and the transverse reinforcing column I can be used to further increase the compressive capacity of the first support rod.

[0019] Preferably, the second support rod includes an intermediate connecting plate, and mounting side plates are connected to both the upper and lower sides of the intermediate connecting plate;

[0020] A concave welding surface is provided on the top of the upper mounting side plate, and a convex welding surface is provided on the lower mounting side plate. The concave welding surface and the convex welding surface are connected to the fuel tank body.

[0021] In this technical solution, the second support rod can be used to support the fuel tank body and increase the compressive capacity of the fuel tank body.

[0022] Preferably, two X-shaped reinforcing frames II distributed front and back are connected between the two mounting side plates;

[0023] A transverse reinforcing column II is fixedly connected to the X-shaped reinforcing frame II at an angle less than 90 degrees.

[0024] In this technical solution, the X-shaped reinforcing frame II and the transverse reinforcing column II can be used to further increase the compressive capacity of the second support rod.

[0025] Preferably, the plastic high-pressure fuel tank assembly further includes a first adsorption pipe, an ICV valve, and a chuck. One end of the first adsorption pipe is connected to a adapter, and the other end of the first adsorption pipe is connected to an FTIV valve;

[0026] The FTIV valve is connected to the fuel tank body, and a second adsorption pipe is connected to the end of the FTIV valve away from the first adsorption pipe.

[0027] Preferably, the chuck is installed on the top of the fuel tank body, and a fuel pump is installed at the chuck;

[0028] The fuel pump is connected to one end of the first adsorption pipe and is also connected to a circulation pipe;

[0029] The fuel pump is connected to one end of a fuel supply pipe, and the other end of the fuel supply pipe is connected to an external device.

[0030] Preferably, the ICV valve is installed at the fuel tank body;

[0031] The ICV valve is connected to one end of a desorption pipe. A part of the desorption pipe is located inside the fuel tank body, and the end of the desorption pipe inside the fuel tank body is connected to the FTIV valve.

[0032] Preferably, a plurality of shock pads are connected to the top of the fuel tank body.

[0033] Preferably, a plurality of heat insulation plates are arranged on the side of the fuel tank body, and the heat insulation plates are connected to the side of the fuel tank body through heat insulation plate fixing seats.

[0034] Based on common knowledge in the art, the above preferred conditions can be combined arbitrarily to obtain various preferred examples of the present utility model.

[0035] The positive and progressive effects of the present utility model are as follows:

[0036] The present utility model uses the first support rod and the second support rod respectively to support the fuel tank body, thereby increasing the compressive capacity of the fuel tank body, enabling the fuel tank body to withstand greater pressure, further meeting the usage requirements of new energy vehicles, increasing the impact resistance of the fuel tank, enhancing the safety performance of the fuel tank, extending the service life of the fuel tank, and further increasing the safety of vehicle use;

[0037] Meanwhile, various combination valves on the fuel tank are built into the interior of the fuel tank, reducing the openings on the fuel tank and better reducing the permeation and emission of oil and gas, so as to better meet the requirements of National VI emissions and the high-pressure resistance requirements of the high-pressure fuel tank. This makes the fuel tank light in weight, with a large degree of freedom in shape, and can maximize the use of the effective space inside the vehicle, thus greatly increasing the fuel storage capacity of the automotive fuel tank, with high safety and reliability, being impact-resistant, corrosion-resistant, and having a long service life. Description of the Drawings

[0038] Figure 1 Schematic front view structure of the plastic high-pressure fuel tank assembly according to an embodiment of the present invention.

[0039] Figure 2 is Figure 1 Schematic back view structure of the plastic high-pressure fuel tank assembly shown in the figure.

[0040] Figure 3 is Figure 1 Schematic left first support rod structure of the plastic high-pressure fuel tank assembly shown in the figure.

[0041] Figure 4 is Figure 1 Schematic right first support rod structure of the plastic high-pressure fuel tank assembly shown in the figure.

[0042] Figure 5 is Figure 1 Schematic left second support rod structure of the plastic high-pressure fuel tank assembly shown in the figure.

[0043] Figure 6 is Figure 1 Schematic right second support rod structure of the plastic high-pressure fuel tank assembly shown in the figure.

[0044] Figure 7 is Figure 1 Schematic internal structure of the first support rod of the plastic high-pressure fuel tank assembly shown in the figure.

[0045] Figure 8 is Figure 1 Schematic top view structure of the first support rod of the plastic high-pressure fuel tank assembly shown in the figure.

[0046] Figure 9 is Figure 1 Schematic internal structure of the second support rod of the plastic high-pressure fuel tank assembly shown in the figure.

[0047] Description of the Reference Numerals

[0048] 1. Fuel tank body;

[0049] 2. First support rod; 21. Intermediate support column; 22. Fixed side plate; 23. Flat welding surface; 24. X-shaped reinforcement frame one; 25. Transverse reinforcement column one;

[0050] 3. Second support rod; 31. Intermediate connecting plate; 32. Mounting side plate; 33. Concave welding surface; 34. Convex welding surface; 35. X-shaped reinforcement frame II; 36. Transverse reinforcement column II;

[0051] 4. Adapter;

[0052] 5. First adsorption tube;

[0053] 6. Circulation pipe;

[0054] 7. FTIV valve;

[0055] 8. Second adsorption tube;

[0056] 9. ICV valve;

[0057] 10. Desorption tube;

[0058] 11. Fuel supply pipe;

[0059] 12. Chuck;

[0060] 13. Fuel pump;

[0061] 14. Shock pad;

[0062] 15. Heat insulation plate;

[0063] 16. Heat insulation plate fixing seat. Detailed implementation manners

[0064] The present utility model will be further described below by way of embodiments, but the present utility model is not limited to the scope of the described embodiments.

[0065] Figures 1 to 9 Shown is a structural schematic diagram of an embodiment of the plastic high-pressure fuel tank assembly of the present utility model. The plastic high-pressure fuel tank assembly includes a fuel tank body 1. The fixing part of the fuel tank body 1 is fixed by a steel belt and a steel belt reinforcing plate together, which increases the fixing strength, reduces the risk of fixing failure, and makes the fixing of the automotive fuel tank safer and more reliable;

[0066] First support rod 2. Two first support rods 2 distributed left and right are welded inside the fuel tank body 1. The first support rods 2 on the left and right sides are distributed in a reversed manner, that is, the structure at the upper end of the left first support rod 2 is at the lower end of the right first support rod 2;

[0067] Second support rod 3. Two second support rods 3 distributed left and right are welded inside the fuel tank body 1. The second support rods 3 on the left and right sides are distributed in a reversed manner, that is, the structure at the upper end of the left second support rod 3 is at the lower end of the right second support rod 3;

[0068] The first support rod 2 and the second support rod 3 are used to provide a supporting force for the fuel tank body 1;

[0069] A adapter 4, the first support rod 2 is installed on the top of the fuel tank body 1, and the adapter 4 is used to transfer the pipeline inside the fuel tank body 1 to the outside.

[0070] In this technical solution, the first support rod 2 and the second support rod 3 can be used to support the fuel tank body 1 respectively, so as to increase the compressive resistance of the fuel tank body 1, enable the fuel tank body 1 to withstand the changed pressure, further meet the use requirements of new energy vehicles, and at the same time increase the impact resistance of the fuel tank, thereby increasing the safety performance of the fuel tank, improving the service life of the fuel tank, and further increasing the safety of vehicle use.

[0071] The first support rod 2 includes an intermediate support column 21, and fixed side plates 22 are fixedly connected to both the upper and lower ends of the intermediate support column 21;

[0072] Flat welding surfaces 23 are arranged on the opposite sides of the two fixed side plates 22, and the flat welding surfaces 23 are connected to the fuel tank body 1.

[0073] In this technical solution, the first support rod 2 can be used to support the fuel tank body 1 and increase the compressive resistance of the fuel tank body 1.

[0074] A plurality of X-shaped reinforcing frames one 24 distributed in a circular array are connected between the two intermediate support columns 21;

[0075] A transverse reinforcing column one 25 is fixedly connected to the X-shaped reinforcing frame one 24 at an angle less than 90 degrees.

[0076] In this technical solution, the X-shaped reinforcing frame one 24 and the transverse reinforcing column one 25 can further increase the compressive resistance of the first support rod 2.

[0077] The second support rod 3 includes an intermediate connecting plate 31, and mounting side plates 32 are connected to both the upper and lower sides of the intermediate connecting plate 31;

[0078] A concave welding surface 33 is arranged on the top of the upper mounting side plate 32, and a convex welding surface 34 is arranged on the lower mounting side plate 32. The concave welding surface 33 and the convex welding surface 34 are connected to the fuel tank body 1.

[0079] In this technical solution, the second support rod 3 can be used to support the fuel tank body 1 and increase the compressive resistance of the fuel tank body 1.

[0080] Two X-shaped reinforcing frames two 35 distributed front and back are connected between the two mounting side plates 32;

[0081] A transverse reinforcing column two 36 is fixedly connected to the X-shaped reinforcing frame two 35 at an angle less than 90 degrees.

[0082] In this technical solution, the X-shaped reinforcing frame two 35 and the transverse reinforcing column two 36 can further increase the compressive capacity of the second support rod 3.

[0083] Welding areas corresponding to the flat welding surface 23, the concave welding surface 33, and the convex welding surface 34 are provided on both the top and bottom surfaces of the fuel tank body 1, and the flat welding surface 23, the concave welding surface 33, and the convex welding surface 34 are respectively welded to the corresponding welding areas.

[0084] The plastic high-pressure fuel tank assembly further includes a first adsorption pipe 5, an ICV valve 9, and a chuck 12. One end of the first adsorption pipe 5 is connected to the adapter 4, and the other end of the first adsorption pipe 5 is connected to the FTIV valve 7.

[0085] The FTIV valve 7 is connected to the fuel tank body 1, and a second adsorption pipe 8 is connected to the end of the FTIV valve 7 away from the first adsorption pipe 5.

[0086] The chuck 12 is installed on the top of the fuel tank body 1, and a fuel pump 13 is installed at the chuck 12.

[0087] The fuel pump 13 is connected to one end of the first adsorption pipe 5, and the fuel pump 13 is connected to the circulation pipe 6.

[0088] The fuel pump 13 is connected to one end of the fuel supply pipe 11, and the other end of the fuel supply pipe 11 is connected to an external device.

[0089] The ICV valve 9 is installed at the fuel tank body 1.

[0090] The ICV valve 9 is connected to one end of the desorption pipe 10. A part of the desorption pipe 10 is located inside the fuel tank body 1, and the end of the desorption pipe 10 inside the fuel tank body 1 is connected to the FTIV valve 7.

[0091] A plurality of shock pads 14 are connected to the top of the fuel tank body 1.

[0092] A plurality of heat insulation plates 15 are provided on the side surface of the fuel tank body 1, and the heat insulation plates 15 are connected to the side surface of the fuel tank body 1 through heat insulation plate fixing seats 16.

[0093] With the cooperation of the adapter 4, various combination valves on the fuel tank are built into the fuel tank, reducing the number of openings on the fuel tank, better reducing the permeation and emission of oil and gas, better meeting the requirements of National VI emissions and the high-pressure resistance requirements of the high-pressure fuel tank, making the fuel tank light in weight, with a large degree of freedom in shape, maximizing the use of the effective space inside the vehicle, thus greatly increasing the fuel storage capacity of the vehicle fuel tank, making the fuel tank more safe and reliable, and resistant to impact, corrosion, and having a long service life.

[0094] Although the specific implementation manners of the present utility model are described above, those skilled in the art should understand that this is only for illustration purposes, and the protection scope of the present utility model is defined by the appended claims. Without departing from the principle and essence of the present utility model, those skilled in the art can make various changes or modifications to these implementation manners, but these changes and modifications all fall within the protection scope of the present utility model.

Claims

1. Plastic high-pressure fuel tank assembly, including a fuel tank body (1), characterized in that, The plastic high-pressure fuel tank assembly further includes: a first support rod (2), and two first support rods (2) distributed left and right are welded inside the fuel tank body (1); a second support rod (3), and two second support rods (3) distributed left and right are welded inside the fuel tank body (1); The first support rod (2) and the second support rod (3) are used to provide support force for the fuel tank body (1); a swivel joint (4), the first support rod (2) is installed on the top of the fuel tank body (1), and the swivel joint (4) is used to transfer the pipeline inside the fuel tank body (1) to the outside.

2. The plastic high-pressure fuel tank assembly according to claim 1, characterized in that: The first support rod (2) includes an intermediate support column (21), and fixed side plates (22) are fixedly connected to both the upper and lower ends of the intermediate support column (21); Flat welding surfaces (23) are provided on the opposite sides of the two fixed side plates (22), and the flat welding surfaces (23) are connected to the fuel tank body (1).

3. The plastic high-pressure fuel tank assembly according to claim 2, characterized in that: A plurality of X-shaped strengthening frames one (24) distributed in an annular array are connected between the two intermediate support columns (21); A transverse strengthening column one (25) is fixedly connected to the X-shaped strengthening frame one (24) at an angle less than 90 degrees.

4. The plastic high-pressure fuel tank assembly according to claim 1, characterized in that: The second support rod (3) includes an intermediate connecting plate (31), and mounting side plates (32) are connected to both the upper and lower sides of the intermediate connecting plate (31); A concave welding surface (33) is provided on the top of the upper mounting side plate (32), and a convex welding surface (34) is provided on the lower mounting side plate (32), and the concave welding surface (33) and the convex welding surface (34) are connected to the fuel tank body (1).

5. The plastic high-pressure fuel tank assembly according to claim 4, characterized in that: Two X-shaped strengthening frames two (35) distributed front and back are connected between the two mounting side plates (32); A transverse strengthening column two (36) is fixedly connected to the X-shaped strengthening frame two (35) at an angle less than 90 degrees.

6. The plastic high-pressure fuel tank assembly according to claim 1, wherein: The plastic high-pressure fuel tank assembly further includes a first adsorption pipe (5), an ICV valve (9), and a chuck (12). One end of the first adsorption pipe (5) is connected to the swivel joint (4), and the other end of the first adsorption pipe (5) is connected to an FTIV valve (7); The FTIV valve (7) is connected to the fuel tank body (1), and a second adsorption pipe (8) is connected to the end of the FTIV valve (7) away from the first adsorption pipe (5).

7. The plastic high-pressure fuel tank assembly according to claim 6, characterized in that: The chuck (12) is installed on the top of the fuel tank body (1), and a fuel pump (13) is installed at the chuck (12); The fuel pump (13) is connected to one end of the first adsorption pipe (5), and the fuel pump (13) is connected to a circulation pipe (6); The fuel pump (13) is connected to one end of a fuel supply pipe (11), and the other end of the fuel supply pipe (11) is connected to an external device.

8. The plastic high-pressure fuel tank assembly according to claim 6, characterized in that: The ICV valve (9) is installed at the fuel tank body (1); The ICV valve (9) is connected to one end of a desorption pipe (10). A part of the desorption pipe (10) is located inside the fuel tank body (1), and the end of the desorption pipe (10) inside the fuel tank body (1) is connected to the FTIV valve (7).

9. The plastic high-pressure fuel tank assembly according to claim 6, characterized in that: A plurality of shock pads (14) are connected to the top of the fuel tank body (1).

10. The plastic high-pressure fuel tank assembly according to claim 6, wherein: A plurality of heat insulation plates (15) are arranged on the side surface of the fuel tank body (1), and the heat insulation plates (15) are connected to the side surface of the fuel tank body (1) through heat insulation plate fixing seats (16).

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