Integrated hydrogen storage chassis

Abstract

A hydrogen bottle system comprises a plurality of hydrogen bottles, each hydrogen bottle comprises an inner layer, a middle layer and an outer layer, the inner layer is sleeved with the middle layer, the middle layer is sleeved with the outer layer, the inner layer is an IV-type bottle with a nylon layer or an III-type bottle with an aluminum alloy inner container, and the outer layer is an outer layer. The middle layer is a carbon fiber layer, and the outer layer is a glass fiber layer; the chassis system comprises a chassis top layer, a chassis middle layer and a chassis bottom layer, the hydrogen bottle system is arranged between the chassis top layer and the chassis middle layer, the hydrogen bottle system is arranged between the chassis middle layer and the chassis bottom layer, and the chassis top layer comprises a first core layer and a first shell layer. A steel frame and a steel structural part are omitted, composite materials are adopted, the weight is greatly reduced, the hydrogen storage system is integrated on the chassis, and the length of the trailer is guaranteed on the basis that the endurance mileage requirement is met.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen energy vehicles, and in particular to an integrated hydrogen storage chassis. Background Art

[0002] The frame of traditional hydrogen energy vehicles is made of steel plates. The hydrogen bottles of the hydrogen storage system are made of a composite material of carbon fiber and glass fiber. The hydrogen storage system is connected to the vehicle through steel structural parts and is arranged on the chassis or above the chassis and behind the cab. In this way, the steel frame plus the steel structural parts connecting the hydrogen storage system and the frame make the chassis heavy. The hydrogen storage system arranged behind the cab occupies the layout space of the trailer, resulting in insufficient trailer length and insufficient loading capacity. At the same time, the connecting structural parts cannot fully wrap the hydrogen storage system, and the protection of the hydrogen storage system is insufficient. Summary of the invention

[0003] In view of the above problems, the present invention provides an integrated hydrogen storage chassis, which not only eliminates the use of steel frames and steel structural parts, but also adopts composite materials to greatly reduce the weight, and the hydrogen storage system is integrated on the chassis, thereby ensuring the length of the trailer while meeting the cruising range requirements.

[0004] In order to achieve the above-mentioned purpose and other related purposes, the technical solution provided by the present invention is as follows: An integrated hydrogen storage chassis, including a hydrogen bottle system and a chassis system. The hydrogen bottle system comprises a plurality of hydrogen bottles, wherein the hydrogen bottles comprise an inner layer, an intermediate layer and an outer layer, the inner layer is covered with the intermediate layer on the outside, the intermediate layer is covered with the outer layer on the outside, the inner layer (101) is a type IV bottle with a nylon layer or a type III bottle with an aluminum alloy liner, the intermediate layer is a carbon fiber layer, and the outer layer is a glass fiber layer; The chassis system includes a top layer, a middle layer and a bottom layer. The hydrogen bottle system is arranged between the top layer and the middle layer, and the hydrogen bottle system is arranged between the middle layer and the bottom layer. The top layer includes a first core layer and a first outer shell layer. The first outer shell layer is arranged outside the first core layer. The first core layer is a PMI foam layer, and the first outer shell layer is a carbon fiber layer.

[0005] Furthermore, the chassis middle layer includes a second core layer and a second outer shell layer, the second outer shell layer is provided outside the second core layer, the second core layer is a PMI foam layer, and the second outer shell layer is a carbon fiber layer.

[0006] Furthermore, the bottom layer of the chassis includes a third core layer and a third outer shell layer, the third outer shell layer is arranged outside the third core layer, the third core layer is a PMI foam layer, and the third outer shell layer is a carbon fiber layer.

[0007] Furthermore, the top layer of the chassis is connected to the middle layer of the chassis via a connecting column, and the middle layer of the chassis is connected to the bottom layer of the chassis via a connecting column.

[0008] Furthermore, the hydrogen bottle system constitutes a longitudinal beam of the chassis system.

[0009] Furthermore, the thickness of the inner layer of the hydrogen bottle is 5-8 mm, the thickness of the middle layer of the hydrogen bottle is 15-25 mm, and the thickness of the outer layer of the hydrogen bottle is 2-4 mm.

[0010] Furthermore, the total thickness of the top layer of the chassis is 200-400 mm, the thickness of the first core layer is 150-340 mm, and the thickness of the first outer shell layer is 50-60 mm.

[0011] Furthermore, the total thickness of the middle layer of the chassis is 300-500 mm, the thickness of the second core layer is 250-440 mm, and the thickness of the second outer shell layer is 50-60 mm.

[0012] Furthermore, the total thickness of the bottom layer of the chassis is 250-450 mm, the thickness of the third outer shell layer is 50-60 mm, and the thickness of the third core layer is 200-390 mm.

[0013] Furthermore, the nylon layer of the Type IV bottle of the hydrogen bottle is processed by rotational molding, injection molding and blow molding, the carbon fiber layer is wound on the inner layer by dry winding and then infusion and wet winding, and the glass fiber layer is wound on the carbon fiber layer by wet winding.

[0014] The present invention has the following positive effects: 1. The hydrogen bottle of the present invention comprises an inner layer, a middle layer and an outer layer, the outer portion of the inner layer is covered with the middle layer, the outer portion of the middle layer is covered with the outer layer, the inner layer is a nylon layer, the middle layer is a carbon fiber layer, and the outer layer is a glass fiber layer. Not only does it eliminate the use of a steel frame and steel structural parts and use composite materials to greatly reduce weight, but the hydrogen storage system and the frame are deeply integrated, and the chassis simultaneously performs the functions of bearing and storing hydrogen.

[0015] 2. The present invention comprises a top layer, a middle layer and a bottom layer of the chassis, wherein the hydrogen bottle system is arranged between the top layer and the middle layer, and between the middle layer and the bottom layer. Not only is the hydrogen storage system integrated on the chassis, thus ensuring the length of the trailer while meeting the requirements of the cruising range, but the hydrogen storage system is also fully wrapped by the composite material. After the vehicle reaches the end of its life, the hydrogen bottles can continue to be used through recycling and remanufacturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the overall structure of the integrated hydrogen storage chassis of the present invention; Figure 2 It is a structural schematic diagram of the chassis system of the present invention (I); Figure 3 It is a structural schematic diagram of the chassis system of the present invention (II); Figure 4 It is a schematic cross-sectional structural diagram of the hydrogen bottle system of the present invention.

[0017] Explanation of numbers in the figure: 100 - hydrogen bottle system, 101 - inner layer, 102 - middle layer, 103 - outer layer, 200 - chassis system, 201 - chassis top layer, 2011 - first core layer, 2012 - first outer shell layer, 202 - chassis middle layer, 2021 - second core layer, 2022 - second outer shell layer, 203 - chassis bottom layer, 2031 - third core layer, 2032 - third outer shell layer, 300 - connecting column. DETAILED DESCRIPTION

[0018] The following is a description of exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, including various details of the embodiments of the present disclosure to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. Similarly, for the sake of clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.

[0019] Example 1: Figure 1 or Figure 2 or Figure 3 or Figure 4 As shown, an integrated hydrogen storage chassis includes a hydrogen bottle system 100 and a chassis system 200. The hydrogen bottle system 100 includes a plurality of hydrogen bottles, each of which includes an inner layer 101, an intermediate layer 102 and an outer layer 103. The inner layer 101 is covered with the intermediate layer 102, and the intermediate layer 102 is covered with the outer layer 103. The inner layer (101) is a type IV bottle with a nylon layer or a type III bottle with an aluminum alloy liner. The intermediate layer 102 is a carbon fiber layer, and the outer layer 103 is a glass fiber layer. The chassis system 200 includes a chassis top layer 201, a chassis middle layer 202 and a chassis bottom layer 203. The hydrogen bottle system 100 is arranged between the chassis top layer 201 and the chassis middle layer 202, and the hydrogen bottle system 100 is arranged between the chassis middle layer 202 and the chassis bottom layer 203. The chassis top layer 201 includes a first core layer 2011 and a first outer shell layer 2012. The first outer shell layer 2012 is arranged outside the first core layer 2011. The first core layer 2011 is a PMI foam layer, and the first outer shell layer 2012 is a carbon fiber layer.

[0020] In this embodiment, the type IV bottle of the nylon layer is nylon 6 (PA6), nylon 66 (PA66), nylon 11 (PA11), nylon 12 (PA12) and the like.

[0021] In this embodiment, the chassis middle layer 202 includes a second core layer 2021 and a second outer shell layer 2022, the second core layer 2021 is provided with the second outer shell layer 2022 outside, the second core layer 2021 is a PMI foam layer, and the second outer shell layer 2022 is a carbon fiber layer.

[0022] In this embodiment, the chassis bottom layer 203 includes a third core layer 2031 and a third outer shell layer 2032. The third outer shell layer 2032 is disposed outside the third core layer 2031. The third core layer 2031 is a PMI foam layer, and the third outer shell layer 2032 is a carbon fiber layer.

[0023] In this embodiment, the chassis top layer 201 is connected to the chassis middle layer 202 via a connecting column 300 , and the chassis middle layer 202 is connected to the chassis bottom layer 203 via a connecting column 300 .

[0024] In this embodiment, the hydrogen bottle system 100 constitutes a longitudinal beam of the chassis system 200 .

[0025] In this embodiment, the thickness of the inner layer 101 of the hydrogen bottle is 5-8 mm, the thickness of the middle layer 102 of the hydrogen bottle is 15-25 mm, and the thickness of the outer layer 103 of the hydrogen bottle is 2-4 mm.

[0026] In this embodiment, the total thickness of the chassis top layer 201 is 200-400 mm, the thickness of the first core layer 2011 is 150-340 mm, and the thickness of the first outer shell 2012 is 50-60 mm.

[0027] In this embodiment, the total thickness of the chassis middle layer 202 is 300-500 mm, the thickness of the second core layer 2021 is 250-440 mm, and the thickness of the second outer shell 2022 is 50-60 mm.

[0028] In this embodiment, the total thickness of the bottom layer 203 of the chassis is 250-450 mm, the thickness of the third outer shell layer 2032 is 50-60 mm, and the thickness of the third core layer 2031 is 200-390 mm.

[0029] In this embodiment, the Type IV bottle of the nylon layer of the hydrogen bottle is processed by rotational molding, injection molding and blow molding, the carbon fiber layer is wound on the inner layer by dry winding and then infusion and wet winding technology, and the glass fiber layer is wound on the carbon fiber layer by wet winding technology.

[0030] Example 2: Based on the integrated hydrogen storage chassis of Example 1, the present invention is further illustrated and described below.

[0031] In this embodiment, the top layer of the chassis is connected to the middle layer of the chassis via a connecting column, and the middle layer of the chassis is connected to the bottom layer of the chassis via a connecting column.

[0032] In this embodiment, the hydrogen bottle system constitutes the longitudinal beam of the chassis system.

[0033] In this embodiment, the thickness of the inner layer of the hydrogen bottle is 5-8 mm, the thickness of the middle layer of the hydrogen bottle is 20 mm, and the thickness of the outer layer of the hydrogen bottle is 3 mm.

[0034] In this embodiment, the total thickness of the top layer of the chassis is 200 mm, the thickness of the first core layer is 150 mm, and the thickness of the first outer shell layer is 50 mm.

[0035] In this embodiment, the total thickness of the chassis middle layer is 300 mm, the thickness of the second core layer is 250 mm, and the thickness of the second outer shell layer is 50 mm.

[0036] In this embodiment, the total thickness of the bottom layer of the chassis is 250 mm, the thickness of the third outer shell layer is 50, and the thickness of the third core layer is 200 mm.

[0037] In this embodiment, the type IV bottle of the nylon layer is nylon 6 (PA6).

[0038] In this embodiment, the Type IV bottle of the nylon layer of the hydrogen bottle is processed by rotational molding, injection molding and blow molding, the carbon fiber layer is wound on the inner layer by dry winding and then infusion and wet winding technology, and the glass fiber layer is wound on the carbon fiber layer by wet winding technology.

[0039] Among them, the above process is adopted to obtain an integrated hydrogen storage chassis.

[0040] Example 3: Based on the integrated hydrogen storage chassis of Example 1, the present invention is further illustrated and described below.

[0041] In this embodiment, the top layer of the chassis is connected to the middle layer of the chassis via a connecting column, and the middle layer of the chassis is connected to the bottom layer of the chassis via a connecting column.

[0042] In this embodiment, the hydrogen bottle system constitutes the longitudinal beam of the chassis system.

[0043] In this embodiment, the thickness of the inner layer of the hydrogen bottle is 6 mm, the thickness of the middle layer of the hydrogen bottle is 22 mm, and the thickness of the outer layer of the hydrogen bottle is 2 mm.

[0044] In this embodiment, the total thickness of the top layer of the chassis is 220 mm, the thickness of the first core layer is 160 mm, and the thickness of the first outer shell layer is 60 mm.

[0045] In this embodiment, the total thickness of the chassis middle layer is 350 mm, the thickness of the second core layer is 300 mm, and the thickness of the second outer shell layer is 50 mm.

[0046] In this embodiment, the total thickness of the bottom layer of the chassis is 300 mm, the thickness of the third outer shell layer is 50 mm, and the thickness of the third core layer is 250 mm.

[0047] In this embodiment, the type IV bottle of the nylon layer is nylon 66 (PA66).

[0048] In this embodiment, the Type IV bottle of the nylon layer of the hydrogen bottle is processed by rotational molding, injection molding and blow molding, the carbon fiber layer is wound on the inner layer by dry winding and then infusion and wet winding technology, and the glass fiber layer is wound on the carbon fiber layer by wet winding technology.

[0049] Among them, the above process is adopted to obtain an integrated hydrogen storage chassis.

[0050] Example 4: Based on the integrated hydrogen storage chassis of Example 1, the present invention is further illustrated and described below.

[0051] In this embodiment, the top layer of the chassis is connected to the middle layer of the chassis via a connecting column, and the middle layer of the chassis is connected to the bottom layer of the chassis via a connecting column.

[0052] In this embodiment, the hydrogen bottle system constitutes the longitudinal beam of the chassis system.

[0053] In this embodiment, the thickness of the inner layer of the hydrogen bottle is 8 mm, the thickness of the middle layer of the hydrogen bottle is 25 mm, and the thickness of the outer layer of the hydrogen bottle is 4 mm.

[0054] In this embodiment, the total thickness of the top layer of the chassis is 400 mm, the thickness of the first core layer is 340 mm, and the thickness of the first outer shell layer is 60 mm.

[0055] In this embodiment, the total thickness of the chassis middle layer is 500 mm, the thickness of the second core layer is 440 mm, and the thickness of the second outer shell layer is 60 mm.

[0056] In this embodiment, the total thickness of the bottom layer of the chassis is 450 mm, the thickness of the third outer shell layer is 60 mm, and the thickness of the third core layer is 390 mm.

[0057] In this embodiment, the type IV bottle of the nylon layer is nylon 11 (PA11).

[0058] In this embodiment, the Type IV bottle of the nylon layer of the hydrogen bottle is processed by rotational molding, injection molding and blow molding, the carbon fiber layer is wound on the inner layer by dry winding and then infusion and wet winding technology, and the glass fiber layer is wound on the carbon fiber layer by wet winding technology.

[0059] Among them, the above process is adopted to obtain an integrated hydrogen storage chassis.

[0060] Example 5: Based on the integrated hydrogen storage chassis of Example 1, the present invention is further illustrated and described below.

[0061] In this embodiment, the top layer of the chassis is connected to the middle layer of the chassis via a connecting column, and the middle layer of the chassis is connected to the bottom layer of the chassis via a connecting column.

[0062] In this embodiment, the hydrogen bottle system constitutes the longitudinal beam of the chassis system.

[0063] In this embodiment, the thickness of the inner layer of the hydrogen bottle is 7 mm, the thickness of the middle layer of the hydrogen bottle is 24 mm, and the thickness of the outer layer of the hydrogen bottle is 2 mm.

[0064] In this embodiment, the total thickness of the top layer of the chassis is 300 mm, the thickness of the first core layer is 250 mm, and the thickness of the first outer shell layer is 50 mm.

[0065] In this embodiment, the total thickness of the chassis middle layer is 400 mm, the thickness of the second core layer is 340 mm, and the thickness of the second outer shell layer is 60 mm.

[0066] In this embodiment, the total thickness of the bottom layer of the chassis is 400 mm, the thickness of the third outer shell layer is 50 mm, and the thickness of the third core layer is 350 mm.

[0067] In this embodiment, the type IV bottle of the nylon layer is nylon 12 (PA12).

[0068] In this embodiment, the Type IV bottle of the nylon layer of the hydrogen bottle is processed by rotational molding, injection molding and blow molding, the carbon fiber layer is wound on the inner layer by dry winding and then infusion and wet winding technology, and the glass fiber layer is wound on the carbon fiber layer by wet winding technology.

[0069] Among them, the above process is adopted to obtain an integrated hydrogen storage chassis.

[0070] Comparative Example 1: In the prior art, a hydrogen storage chassis structure includes a base, a through groove is opened between the center positions of the upper and lower side walls of the base, a supporting tray is fixedly connected to the bottom wall of the base at the opening of the through groove, and a hydrogen storage tank placement slot is opened on the top wall of the base and on the front and rear sides of the through groove, and the two hydrogen storage tank placement slots are symmetrically arranged front to back, and a group of reinforcement blocks are fixedly connected to the front and rear side walls above the supporting tray, and the two groups of reinforcement blocks are symmetrically arranged front to back and the top wall is fixedly connected to the base, which is provided with an independent hydrogen storage tank matching assembly structure, that is, two hydrogen storage tank placement slots are symmetrically arranged front to back on the top of the base, and when the overall high-power hydrogen fuel cell heavy-duty truck hydrogen storage chassis structure is used, it can carry out good matching installation and assembly of the hydrogen storage tank to obtain a hydrogen storage chassis.

[0071] Comparative Example 2: The special-shaped solid-state hydrogen storage container unit includes a solid-state hydrogen storage container cylinder for filling hydrogen storage metal; the solid-state hydrogen storage container cylinder is arranged in the external skeleton of the overall device to obtain a hydrogen storage chassis.

[0072] The examples 1, 2, 3, 4 and 5 of the present application were compared with the comparative examples 1 and 2, as shown in the following table.

[0073]

[0074] From the above table, we can see that the integrated hydrogen storage chassis of this application has the advantages of higher strength, longer cruising range, reduced weight and higher cargo weight compared to other hydrogen storage chassis.

[0075] In summary, the present invention not only eliminates the use of steel frames and steel structural parts, but also adopts composite materials to significantly reduce weight, and the hydrogen storage system is integrated on the chassis, thereby ensuring the length of the trailer while meeting the requirements of cruising range.

[0076] The above specific implementations do not constitute a limitation on the protection scope of the present disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. An integrated hydrogen storage chassis, comprising a hydrogen bottle system (100) and a chassis system (200), characterized in that: The hydrogen bottle system (100) comprises a plurality of hydrogen bottles, wherein the hydrogen bottles comprise an inner layer (101), an intermediate layer (102) and an outer layer (103), the inner layer (101) is covered with the intermediate layer (102) on the outside, the intermediate layer (102) is covered with the outer layer (103) on the outside, the inner layer (101) is a type IV bottle with a nylon layer or a type III bottle with an aluminum alloy liner, the intermediate layer (102) is a carbon fiber layer, and the outer layer (103) is a glass fiber layer; The chassis system (200) comprises a chassis top layer (201), a chassis middle layer (202) and a chassis bottom layer (203); the hydrogen bottle system (100) is arranged between the chassis top layer (201) and the chassis middle layer (202); the hydrogen bottle system (100) is arranged between the chassis middle layer (202) and the chassis bottom layer (203); the chassis top layer (201) comprises a first core layer (2011) and a first outer shell layer (2012); the first outer shell layer (2012) is arranged outside the first core layer (2011); the first core layer (2011) is a PMI foam layer; and the first outer shell layer (2012) is a carbon fiber layer.

2. The integrated hydrogen storage chassis according to claim 1 is characterized in that: The chassis middle layer (202) comprises a second core layer (2021) and a second outer shell layer (2022), the second outer shell layer (2022) is provided outside the second core layer (2021), the second core layer (2021) is a PMI foam layer, and the second outer shell layer (2022) is a carbon fiber layer.

3. The integrated hydrogen storage chassis according to claim 1 is characterized in that: The chassis bottom layer (203) comprises a third core layer (2031) and a third outer shell layer (2032); the third outer shell layer (2032) is provided outside the third core layer (2031); the third core layer (2031) is a PMI foam layer, and the third outer shell layer (2032) is a carbon fiber layer.

4. The integrated hydrogen storage chassis according to claim 1 is characterized in that: The chassis top layer (201) is connected to the chassis middle layer (202) via a connecting column (300), and the chassis middle layer (202) is connected to the chassis bottom layer (203) via a connecting column (300).

5. The integrated hydrogen storage chassis according to claim 1 is characterized in that: The hydrogen bottle system (100) constitutes a longitudinal beam of the chassis system (200).

6. The integrated hydrogen storage chassis according to claim 1, characterized in that: The thickness of the inner layer (101) of the hydrogen bottle is 5-8 mm, the thickness of the middle layer (102) of the hydrogen bottle is 15-25 mm, and the thickness of the outer layer (103) of the hydrogen bottle is 2-4 mm.

7. The integrated hydrogen storage chassis according to claim 1 is characterized in that: The total thickness of the chassis top layer (201) is 200-400 mm, the thickness of the first core layer (2011) is 150-340 mm, and the thickness of the first outer shell layer (2012) is 50-60 mm.

8. The integrated hydrogen storage chassis according to claim 2 is characterized in that: The total thickness of the chassis middle layer (202) is 300-500 mm, the thickness of the second core layer (2021) is 250-440 mm, and the thickness of the second outer shell layer (2022) is 50-60 mm.

9. The integrated hydrogen storage chassis according to claim 3 is characterized in that: The total thickness of the bottom layer (203) of the chassis is 250-450 mm, the thickness of the third outer shell layer (2032) is 50-60 mm, and the thickness of the third core layer (2031) is 200-390 mm.

10. The integrated hydrogen storage chassis according to claim 1, characterized in that: The nylon layer of the hydrogen bottle is made of type IV bottle by rotational molding, injection molding and blow molding, the carbon fiber layer is wound on the inner layer by dry winding and then infusion and wet winding, and the glass fiber layer is wound on the carbon fiber layer by wet winding.

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