Tank mounting structure

Abstract

To provide a tank mounting structure which can prevent a cargo or the like from colliding with a tank.SOLUTION: A mounting structure of a tank 10 for holding the tank 10 has two first frames 21 which hold both ends of the tank 10 and surround the tank 10, and a second frame 22 arranged between the two first frames 21.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present disclosure relates to a mounting structure for a tank. [Background technology]

[0002] Patent Document 1 discloses a structure in which a tank is mounted in a space adjacent to the luggage compartment (Fig. 1, paragraph 0032). Patent Document 2 discloses a pressure vessel equipped with frames on both sides of the tank (Fig. 1). Patent Document 3 discloses a tank mounting structure equipped with frames that surround both ends of the tank (Fig. 3). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2003-211982 [Patent Document 2] Japanese Patent Publication No. 2022-049006 [Patent Document 3] Japanese Patent Application Laid-Open No. 2009-012741 Summary of the Invention [Problem to be solved by the invention]

[0004] In conventional tank mounting structures, when the tank is mounted in the trunk of a vehicle, there is a risk that the luggage may slide and hit the tank in the event of sudden braking, etc.

[0005] The present disclosure has been made in consideration of these circumstances, and aims to provide a tank mounting structure that can prevent luggage and the like from colliding with the tank. [Means for solving the problem]

[0006] The present application discloses a tank mounting structure that holds a tank, the tank mounting structure having two first frames that hold both ends of the tank and surround the tank, and a second frame that is disposed between the two first frames.

[0007] The second frame may be shaped to surround the tank. [Effects of the Invention]

[0008] According to the present disclosure, it is possible to avoid cargo collisions with tanks. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a diagram showing a schematic external view of a high-pressure tank 10. As shown in FIG. [Figure 2] FIG. 2 is a schematic cross-sectional view of the high-pressure tank 10. As shown in FIG. [Figure 3] FIG. 3 is a perspective view of the tank mounting structure 20. [Figure 4] FIG. 4 is a plan view of the tank mounting structure 20. [Figure 5] FIG. 5 is a front view of the tank mounting structure 20. [Figure 6] FIG. 6 is a side view of the tank mounting structure 20. [Figure 7] FIG. 7 is a perspective view of a tank mounting structure 20 on which the tank 10 is mounted. [Figure 8] FIG. 8 is a plan view of the tank mounting structure 20 on which the tank 10 is mounted. [Figure 9] FIG. 9 is a perspective view of the tank mounting structure 20'. DETAILED DESCRIPTION OF THE INVENTION

[0010] 1. High-pressure tank structure Fig. 1 shows a schematic view of the appearance of a high-pressure tank 10 according to one embodiment, and Fig. 2 shows a schematic cross section along the axis of the high-pressure tank 10. As can be seen from these figures, in this embodiment, the high-pressure tank 10 has a liner 11, a reinforcing layer 12, a protective layer 13, and a nozzle 14. Each component will be described below.

[0011] 1.1. Liner The liner 11 is a hollow member that defines the internal space of the high-pressure tank 10. The liner 11 may be made of any material that can hold the contents (e.g., hydrogen) contained in the internal space without leaking, and any known material can be used, such as nylon resin, polyethylene-based synthetic resin, or metal such as stainless steel or aluminum. The thickness of the liner 11 is not particularly limited, but is preferably 0.5 mm to 1.0 mm.

[0012] 1.2.Reinforcing layer The reinforcing layer 12 is made up of multiple layers of fibers and contains a hardened resin that has been impregnated into the fibers. The fiber layer is formed by wrapping fiber bundles around the outer surface of the liner 11 in multiple layers to a predetermined thickness. The thickness of the reinforcing layer 12 is determined depending on the required strength and is not particularly limited, but is about 10 mm to 30 mm.

[0013] Carbon fibers are used for the fiber bundles of the reinforcing layer 12, and the fiber bundles are band-shaped bundles of carbon fibers having a predetermined cross-sectional shape (for example, a rectangular cross-section). Specific examples include, but are not limited to, a rectangular cross-sectional shape with a width of about 6 mm to 10 mm and a thickness of about 0.1 mm to 0.15 mm. The amount of carbon fibers contained in the fiber bundle is also not particularly limited, but may be, for example, about 36,000 carbon fibers.

[0014] The resin impregnated into the fibers in the reinforcing layer 12 and cured is not particularly limited as long as it can increase the strength of the fibers. Examples of such resins include thermosetting resins that are cured by heat, such as epoxy resins and unsaturated polyester resins that contain an amine- or anhydride-based curing accelerator and a rubber-based toughening agent. Other examples include resin compositions that use an epoxy resin as the base agent and are cured by mixing a curing agent into it. In this case, the resin composition, which is a mixture of the base agent and the curing agent, reaches and penetrates the fiber layer between the time of mixing and the time of curing, and then automatically hardens.

[0015] 1.3.Protective layer The protective layer 13 is a layer that is arranged on the outer periphery of the reinforcing layer 12 as needed, and when provided, is made by wrapping, for example, glass fiber and impregnating it with resin. The impregnated resin can be considered the same as the reinforcing layer 12. This makes it possible to impart impact resistance to the high-pressure tank 10. The thickness of the protective layer 13 is not particularly limited, but can be about 1.0 mm to 2.0 mm.

[0016] 1.4.Socket The nozzles 14 are components attached to the two opening ends of the liner 11, one of which functions as an opening that connects the inside and outside of the high-pressure tank 10, and also functions as an attachment part for attaching piping and valves to the high-pressure tank 10.

[0017] 2.Tank mounting structure An example of a tank mounting structure 20 will be described with reference to the drawings. Fig. 3 is a perspective view of the tank mounting structure 20, Fig. 4 is a plan view of the tank mounting structure 20, Fig. 5 is a front view of the tank mounting structure 20, and Fig. 6 is a side view of the tank mounting structure 20. Fig. 7 is a view of the tank mounting structure 20 with the high-pressure tank 10 mounted, and Fig. 8 is a plan view of the tank mounting structure 20 with the high-pressure tank 10 mounted. As can be seen from these figures, the tank mounting structure 20 has a first frame 21 and a second frame 22.

[0018] 2.1. First Frame The first frame 21 is a frame-shaped member with a portion missing, and two ends 21a of the missing portion are fixed to the floor surface F. Therefore, a space S1 is formed that is surrounded by the first frame 21 and the floor surface F. In this embodiment, the first frame is a quadrangular frame with one side missing (missing portion). Here, the floor surface F can be, for example, the bed of a vehicle, and the tank mounting structure 20 is provided on the vehicle.

[0019] Two first frames 21 are provided at a distance from each other in the tank mounting structure 20. As can be seen from Figures 7 and 8, an end portion (a portion close to the nozzle 14) of the high-pressure tank 10 is placed within the space S1 of the first frames 21, and both ends of the high-pressure tank 10 are held so that they are surrounded by the two first frames 21.

[0020] The material of the first frame 21 is not particularly limited, but is preferably metal from the viewpoint of ensuring strength. The shape of the frame material of the frame-shaped first frame 21 is not particularly limited, and examples include a rectangular cross section and a circular cross section. The thickness is also not particularly limited, as long as it can ensure strength.

[0021] 2.2. Second Frame Similar to the first frame 21, the second frame 22 in this embodiment is a frame-shaped member with a portion missing, and two ends 22a of the missing portion are fixed to the floor surface F. Therefore, a space S2 is formed that is surrounded by the second frame 22 and the floor surface F. In this embodiment, the second frame 22 is a quadrangular frame with one side missing (missing portion).

[0022] In the tank mounting structure 20, two second frames 22 are provided between the first frames 21. As can be seen from Figures 7 and 8, the body of the high-pressure tank 10 (a portion closer to the longitudinal center than the nozzle 14) is placed in the space S2 of the second frames 22, and the body of the high-pressure tank 10 is held so that it is surrounded by the second frames 22.

[0023] The material of the second frame 22 is not particularly limited, but is preferably metal from the viewpoint of ensuring strength. The shape of the frame material of the frame-shaped second frame 22 is not particularly limited, and examples include a rectangular cross section and a circular cross section. The thickness is also not particularly limited, as long as it can ensure strength.

[0024] In this embodiment, an example in which two second frames 22 are provided has been described, but the number of second frames does not necessarily have to be two, and may be one, or three or more.

[0025] 9 shows a modified tank mounting structure 20', the second frame 22' does not necessarily have to surround the high-pressure tank 10, but may be a columnar member provided between the first frames 21. In this case, the second frame 22' is disposed between the frame members comprising the end portions 21a of the two first frames 21. This allows the second frame 22' to function as described below.

[0026] 3. Effects etc. According to the tank mounting structure of the present disclosure, the second frame 22 is arranged between the first frames 21, so that even if the luggage N placed on the floor surface F moves toward the high-pressure tank 10 for some reason as shown in Figure 7, the second frame 22 can prevent the luggage from colliding with the high-pressure tank 10. For example, when the tank mounting structure is installed in a fuel cell vehicle and the high-pressure tank is a tank for storing hydrogen as fuel, it is important to avoid collisions with cargo due to the nature of the tank, and the tank mounting structure of the present disclosure is particularly useful. In this case, the tank is fixed to the floor by tank fixing means (such as a band) not shown so that it cannot move relative to the floor. Furthermore, when the second frame 22 is shaped to surround the high-pressure tank 10 as in the example (tank mounting structure 20) of FIGS. 3 and 7, the strength of the tank mounting structure can be increased. [Explanation of symbols]

[0027] 10. High-pressure tank 11 Liner 12 Reinforcement layer 13 Protective layer 14 nozzle 20 Tank mounting structure 21 First Frame 22 2nd Frame

Claims

1. A tank mounting structure in which the tank is placed directly on the floor, a first frame having a frame shape with a partially missing portion and a second frame; The floor surface of the first frame is disposed in the cutout portion, forming a space surrounded by the floor surface and the first frame; Two first frames are arranged at a predetermined interval in the longitudinal direction of the tank, and one end side and the other end side in the longitudinal direction of the tank are arranged so as to pass through the inside of the space between the two first frames, The second frame is disposed between the two first frames, and two columnar members erected from the floor surface are disposed on one side and the other side of the tank. Tank mounting structure.

2. The second frame is a tank mounting structure as described in claim 1, in which the second frame is arranged so as to span the ends of the two columnar members opposite the floor surface, forming a space surrounded by the floor surface and the second frame, and the tank is arranged so as to pass through the inside of the space.

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