Fuel supply wheel and fuel cell automobile

Abstract

The invention provides a fuel supply wheel and a fuel cell automobile, and relates to the technical field of new energy automobiles, the fuel supply wheel comprises a hub and a baffle assembly, the hub is provided with a plurality of gas cylinder mounting cavities distributed around the axis of the hub, and the gas cylinder mounting cavities penetrate through the hub in the direction parallel to the axial direction of the hub; the baffle assemblies are installed on the inner side and the outer side of the hub in the axial direction of the hub and used for limiting the axial positions of the gas cylinders and protecting the gas cylinders. The fuel supply wheel has the advantages that the gas carrying amount can be increased, the gas cylinder is effectively prevented from being damaged, and the gas cylinder is convenient to replace.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicles, and in particular to a fuel supply wheel and a fuel cell vehicle. Background Art

[0002] Compared with fuel vehicles, hydrogen fuel cell vehicles have the characteristic of zero pollution. However, due to the limitation of the space of the vehicle itself, hydrogen fuel cell vehicles cannot carry more hydrogen for vehicle use, resulting in insufficient vehicle range. The use of higher pressure gas cylinders to increase the amount of hydrogen carried has a greater potential risk. In addition, the gas cylinders of traditional fuel cell vehicles adopt a frame fixed structure without an effective external protection structure, which is easy to cause gas cylinder damage. Once the gas cylinder leaks or is damaged, it is difficult to disassemble and replace. Summary of the invention

[0003] The object of the present invention is to provide a fuel supply wheel and a fuel cell vehicle, which have the advantages of being able to increase the gas carrying capacity, effectively prevent gas cylinder damage, and facilitate gas cylinder replacement.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] In a first aspect, the present invention provides a fuel supply wheel, comprising a wheel hub and a baffle assembly, wherein the wheel hub has a plurality of gas cylinder mounting cavities arranged around the axis of the wheel hub, the gas cylinder mounting cavities penetrate the wheel hub in a direction parallel to the axial direction of the wheel hub, the baffle assembly is installed on the inner and outer sides of the wheel hub along the axial direction of the wheel hub, and the baffle assembly is used to limit the axial position of each gas cylinder and protect each gas cylinder.

[0006] Further, the wheel hub includes a plurality of buffer structures, and the buffer structures include a gas cylinder storage unit and a plurality of buffer components;

[0007] The gas cylinder storage unit is ring-shaped, and each of the buffer components is installed on the inner ring surface of the gas cylinder storage unit and arranged around the axis of the gas cylinder storage unit. A gas cylinder installation cavity is formed between each of the buffer components, and the buffer component is used to buffer the impact between the wheel hub and the gas cylinder.

[0008] Furthermore, the buffer assembly includes an elastic member, a connecting plate and a buffer layer;

[0009] The connecting plate comprises an outer side surface and an inner side surface, and the outer side surface abuts against the inner ring surface of the gas cylinder storage unit;

[0010] The elastic member is connected to the outer side surface, and the elastic member is inserted into the mounting groove group concavely arranged on the inner ring surface of the gas cylinder storage unit and provides a buffer force along the radial direction of the gas cylinder storage unit;

[0011] The buffer layer covers the inner side surface, and a gas cylinder installation cavity is formed between the buffer layers of each buffer assembly.

[0012] Furthermore, the elastic member is configured as a plurality of elastic members, and the plurality of elastic members are arranged at intervals along a direction parallel to the axial direction of the gas cylinder storage unit;

[0013] The mounting slot group includes a plurality of mounting slots that are matched one-to-one with the plurality of buffer components, and the mounting slots in each group of the mounting slots are configured in plurality, and the plurality of mounting slots are plugged in one-to-one with the plurality of elastic members in the buffer components.

[0014] Furthermore, the baffle assembly includes an outer baffle and an inner baffle, the outer baffle is installed on the outer side of the wheel hub through a connecting member, and the inner baffle is installed on the inner side of the wheel hub through the connecting member.

[0015] Furthermore, the outer baffle plate includes an outer plate body, which is provided with a plurality of limiting holes, the plurality of limiting holes are arranged in one-to-one correspondence with the plurality of gas cylinders, the aperture of the limiting holes is smaller than the maximum outer diameter of the gas cylinders, and the limiting holes are used to limit the axial position of the tail of each gas cylinder and form a protective space with the inner baffle plate.

[0016] Furthermore, the inner baffle plate includes an inner plate body, which is annular to avoid the gas inlet and outlet of the gas cylinder head. The surface of the inner plate body facing the gas cylinder is recessed with a plurality of limiting grooves, which extend from the inner circle of the inner plate body to the outer circle. The limiting grooves are used to limit the axial position of each gas cylinder head and form a protective space with the outer baffle plate.

[0017] In a second aspect, the present invention further provides a fuel cell vehicle comprising the fuel supply wheel described in the above scheme.

[0018] Furthermore, it also includes a gas collecting pipe group, which is installed on the inner side of the wheel hub along the axial direction of the wheel hub, and is used to collect the gas in each gas collecting bottle or divert the gas therein to each gas collecting bottle.

[0019] Further, the air collecting pipe group includes a transmission shaft and a fixed shell;

[0020] One end of the transmission shaft is connected to the wheel hub and has a first gas collecting cavity. A side wall of the transmission shaft close to the wheel hub is provided with a plurality of gas guide holes connected to the first gas collecting cavity. The plurality of gas guide holes are used to be connected to the plurality of gas cylinders in a one-to-one correspondence. The first gas collecting cavity has a first opening at one end away from the wheel hub.

[0021] The fixed shell is installed in the first air collecting cavity from the first opening and rotates and seals with the transmission shaft. The fixed shell has a second air collecting cavity. A main exhaust port connected to the second air collecting cavity is formed on the side wall of the fixed shell at one end away from the wheel hub. The second air collecting cavity has a second opening connected to each of the air guide holes through the first air collecting cavity at one end close to the wheel hub.

[0022] The fuel supply wheel and fuel cell vehicle provided by the present invention can produce the following beneficial effects:

[0023] Compared with the prior art, in the fuel supply wheel provided by the first aspect of the present invention, the wheel hub is provided with multiple gas cylinder installation cavities, which can hold multiple gas cylinders to increase the gas carrying capacity, and the gas cylinder installation cavity passes through the wheel hub in a direction parallel to the axial direction of the wheel hub, so as to facilitate the gas discharged from the gas inlet and outlet at the head of the gas cylinder to be discharged to the fuel cell system at the bottom of the vehicle body; in addition, baffle assemblies are installed on the outer and inner sides of the wheel hub, which can limit the axial position of each gas cylinder and protect each gas cylinder, effectively prevent damage to the gas cylinder, and ensure driving safety. When there is a problem with one or several gas cylinders, the baffle assembly can be removed for easy replacement.

[0024] The fuel cell vehicle provided in the second aspect of the present invention has the fuel supply wheel provided in the first aspect of the present invention, thereby having all the beneficial effects possessed by the fuel supply wheel provided in the first aspect of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic diagram of the three-dimensional structure of the wheel hub, the gas collecting pipe group and the fuel cell system provided in an embodiment of the present invention when connected;

[0027] Figure 2 A schematic diagram of the three-dimensional structure of the hub, the gas collecting pipe group and the gas cylinder when they are connected according to an embodiment of the present invention;

[0028] Figure 3 A schematic diagram of a three-dimensional structure of a fuel supply wheel, a gas collecting pipe group and a gas cylinder when connected according to an embodiment of the present invention;

[0029] Figure 4 A schematic diagram of the three-dimensional structure of a gas cylinder storage unit provided in an embodiment of the present invention;

[0030] Figure 5A schematic diagram of the three-dimensional structure of a buffer assembly provided in an embodiment of the present invention;

[0031] Figure 6 A schematic diagram of the three-dimensional structure of the outer baffle provided in an embodiment of the present invention;

[0032] Figure 7 A schematic diagram of the three-dimensional structure of the inner baffle provided in an embodiment of the present invention;

[0033] Figure 8 A cross-sectional view of a gas collecting pipe group provided in an embodiment of the present invention.

[0034] Icons: 1-wheel hub; 11-gas cylinder installation cavity; 12-gas cylinder storage unit; 121-installation slot; 13-buffer assembly; 131-elastic member; 132-connecting plate; 133-buffer layer; 14-through hole; 2-baffle assembly; 21-outer baffle; 211-outer plate; 2111-first connecting hole; 2112-limiting hole; 2113-third connecting hole; 22-inner baffle; 221-inner plate; 2211-second connecting hole; 221 2-limiting groove; 3-gas cylinder; 4-connecting piece; 5-gas collecting pipe group; 51-transmission shaft; 511-first gas collecting chamber; 512-air guide hole; 513-first outer shell; 514-second outer shell; 52-fixed shell; 521-second gas collecting chamber; 5211-second opening; 522-main exhaust port; 6-tire; 7-gas supply pipeline; 8-charge and discharge interface pipeline; 9-valve; 10-gas storage pipeline; 011-sealing ring; 012-fuel cell system. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0039] An embodiment of a first aspect of the present invention is to provide a fuel supply wheel, such as Figures 1 to 3 As shown, it includes a wheel hub 1 and a baffle assembly 2, the wheel hub 1 has a plurality of gas cylinder installation cavities 11 arranged around the axis of the wheel hub 1, the gas cylinder installation cavities 11 penetrate the wheel hub 1 along a direction parallel to the axial direction of the wheel hub 1, the baffle assembly 2 is installed on the inner side and the outer side of the wheel hub 1 along the axial direction of the wheel hub 1, and the baffle assembly 2 is used to limit the axial position of each gas cylinder 3 and protect each gas cylinder 3.

[0040] First refer to Figure 1 and Figure 2 As shown, the wheel hub 1 has a plurality of gas cylinder installation cavities 11 distributed around its axis, and each gas cylinder installation cavity 11 can be used to install a gas cylinder, such as Figure 3 As shown, after the gas cylinders are installed, the baffle assembly 2 can be installed on the inner and outer sides of the wheel hub 1 along the axial direction of the wheel hub 1. The baffle assembly 2 can not only limit the axial position of each gas cylinder 3, but also protect each gas cylinder 3.

[0041] The fuel supply wheel provided in the above embodiment can be equipped with multiple gas cylinders 3 to increase the gas carrying capacity of the vehicle. Figure 2 As shown, since the gas cylinder installation cavity 11 passes through the wheel hub 1 in a direction parallel to the axial direction of the wheel hub 1, the gas discharged from the air inlet and outlet at the head of the gas cylinder 3 is conveniently discharged to the fuel cell system 012 at the bottom of the vehicle body. In addition, the baffle assembly 2 can effectively prevent damage to the gas cylinder and ensure driving safety. When one or several gas cylinders have problems, the baffle assembly 2 can be removed to facilitate the replacement of the gas cylinder 3.

[0042] It is understandable that if Figure 3 As shown, a tire 6 may be installed on the outside of the wheel hub 1 .

[0043] Specifically, the gas cylinder installation cavity 11 can be configured as 2, 3, 4, 5, 6 or more, and the multiple gas cylinder installation cavities 11 are preferably evenly spaced and distributed around the axis of the wheel hub 1. Figure 1 As shown, the number of the gas cylinder installation cavities 11 is 10. Of course, the number of the gas cylinder installation cavities 11 is not limited to the above examples, and can be adjusted according to actual needs.

[0044] In some embodiments, in order to avoid rigid contact between the wheel hub 1 and the gas cylinder 3, the wheel hub 1 includes a plurality of buffer structures, each of which forms a gas cylinder installation cavity 11. The above arrangement enables the gas cylinder 3 to be connected to the wheel hub body through the buffer structure, which can buffer the bumps generated during the operation of the wheel to a certain extent and protect the side wall of the gas cylinder 3 to a certain extent.

[0045] It should be noted that any structure that can form the gas cylinder installation cavity 11 and play a buffering role on the gas cylinder 3 can be the buffer structure mentioned in the above embodiment. For example, the buffer structure may include a rubber ring, or the buffer structure may include an inner ring, an outer ring, and a spring disposed between the inner ring and the outer ring, and the inner ring and the outer ring are in contact with the gas cylinder 3 and the hub body respectively.

[0046] In some embodiments, Figure 4 and Figure 5 As shown, the buffer structure includes a gas cylinder storage unit 12 and a plurality of buffer components 13; the gas cylinder storage unit 12 is annular and is installed on the hub body, and a mounting groove group is recessed on the inner ring surface of the gas cylinder storage unit 12, and each buffer component 13 is inserted into the mounting groove group and arranged around the axis of the gas cylinder storage unit 12, and a gas cylinder installation cavity 11 is formed between each buffer component 13.

[0047] During installation, the gas cylinder 3 can be installed in the gas cylinder installation cavity 11 , and the buffer assembly 13 can buffer the impact between the wheel hub body and the gas cylinder 3 .

[0048] The gas cylinder storage unit 12 can be directly plugged into the wheel hub body, and the axial limitation of the gas cylinder 3 is achieved through the axial limitation of the gas cylinder 3 by the baffle assembly 2 and the friction between the gas cylinder 3 and the buffer assembly 13; the axial limitation of the gas cylinder storage unit 12 can also be achieved through the interference fit between the gas cylinder storage unit 12 and the wheel hub body; the axial limitation of the gas cylinder storage unit 12 can also be achieved by welding the gas cylinder storage unit 12 to the wheel hub body.

[0049] In order to better fit the outer surface of the gas cylinder 3 , the gas cylinder storage unit 12 is in a circular ring shape.

[0050] Specifically, Figure 5 As shown, the buffer assembly 13 includes an elastic member 131, a connecting plate 132 and a buffer layer 133, wherein:

[0051] The connecting plate 132 includes an outer side surface and an inner side surface, the inner side surface is a side surface close to the gas cylinder 3, the outer side surface is a side surface away from the gas cylinder 3, and the outer side surface abuts against the inner ring surface of the gas cylinder storage unit 12;

[0052] The elastic member 131 is connected to the outer side surface so that the elastic member 131 can be inserted into the installation groove group and provide a buffer force along the radial direction of the gas cylinder storage unit 12;

[0053] The buffer layer 133 completely covers the inner side surface of the connecting plate 132 , and a gas cylinder installation cavity 11 is formed between the buffer layers 133 of each buffer assembly 13 .

[0054] The elastic member 131 may include a stopper and a spring. The stopper protrudes from the outer side of the connecting plate 132 and extends into the mounting groove group to limit the axial and circumferential position of the connecting plate 132 relative to the hub body. One end of the spring is connected to the stopper, and the other end is against the bottom of the mounting groove group. In at least one embodiment, the elastic member 131 is a damper. The material of the buffer layer 133 may be rubber or silicone.

[0055] In order to better adapt to the inner surface of the gas cylinder storage unit 12, the connecting plate 132 is an arc-shaped plate, and correspondingly, the buffer layer 133 is an arc-shaped cushion layer.

[0056] In some embodiments, Figure 5 As shown, the elastic member 131 is configured as a plurality of elastic members 131 , and the plurality of elastic members 131 are arranged at intervals along a direction parallel to the axial direction of the gas cylinder storage unit 12 .

[0057] Compared with configuring one elastic member, configuring multiple elastic members 131 can ensure that the connecting plate 132 can be stably subjected to buffering force at all locations along the direction parallel to the axial direction of the gas cylinder storage unit 12, thereby fully protecting the outer surface of the gas cylinder.

[0058] Based on the above embodiments, Figure 4 As shown, the installation groove group includes a plurality of groups of installation grooves 121 corresponding one-to-one with the plurality of buffer components 13, and the installation grooves 121 in each group of installation grooves 121 are configured as a plurality of them. The plurality of installation grooves 121 in each group of installation grooves 121 are distributed in an "I" shape along a direction parallel to the axial direction of the gas cylinder storage unit 12, and the plurality of installation grooves 121 are plugged in one-to-one with the plurality of elastic members 131 in the buffer component 13.

[0059] by Figure 4 and Figure 5For example, there are three elastic members 131 in the buffer assembly 13, and each group of mounting grooves 121 is provided with three mounting grooves 121. The three elastic members 131 are inserted into the three mounting grooves 121 one by one. After each buffer assembly 13 is installed in each group of mounting grooves 121 one by one, the buffer layers 133 in each buffer assembly 13 are sequentially spliced ​​along the circumferential direction to form the gas cylinder installation cavity 11.

[0060] The structure of the baffle assembly 2 is described in detail below:

[0061] In some embodiments, Figure 3 , Figure 6 and Figure 7 As shown, the baffle assembly 2 includes an outer baffle 21 and an inner baffle 22. The outer baffle 21 is installed on the outer side of the wheel hub 1 through the connecting member 4 to limit and protect the tail of the gas cylinder. The inner baffle 22 is installed on the inner side of the wheel hub 1 through the connecting member 4 to limit and protect the tail of the gas cylinder.

[0062] In order to avoid wear on the contact surfaces of the three caused by direct rigid contact between the outer baffle plate 21 and the inner baffle plate 22 and the wheel hub 1, a buffer layer can be provided between the outer baffle plate 21 and the wheel hub 1, and a buffer layer can also be provided between the inner baffle plate 22 and the wheel hub 1. The buffer layer can also compensate for the gap between the three to avoid noise caused by slight looseness between the inner and outer baffle plates and the wheel hub 1 during operation.

[0063] Similarly, a buffer layer may be provided on the surface of the outer baffle plate 21 facing the gas cylinder 3 and the surface of the inner baffle plate 22 facing the gas cylinder 3 .

[0064] The material of the buffer layer can be rubber, silicone, etc.

[0065] Among them, a first connecting hole 2111 can be opened on the outer baffle plate 21, and a second connecting hole 2211 corresponding to the first connecting hole 2111 can be opened on the inner baffle plate 22. The connecting member 4 can pass through the first connecting hole 2111, the wheel hub 1 and the second connecting hole 2211 in sequence and lock the positions of the outer baffle plate 21 and the inner baffle plate 22 relative to the wheel hub 1.

[0066] The above-mentioned connecting member 4 may include bolts and nuts. Specifically, during installation, the bolts may be passed through the first connecting hole 2111, the wheel hub 1 and the second connecting hole 2211 in sequence, and then the nuts may be tightened on the bolts to lock the positions of the outer baffle plate 21 and the inner baffle plate 22 relative to the wheel hub 1.

[0067] Specifically, Figure 6 As shown, the first connection hole 2111 and the second connection hole 2211 may be configured in plurality, thereby enhancing the connection firmness between the outer baffle plate 21 and the inner baffle plate 22 .

[0068] In some embodiments, Figure 6 As shown, the outer baffle 21 includes an outer plate body 211 with a circular outer circumference, and a first connecting hole 2111 and a plurality of limiting holes 2112 are opened on the outer plate body 211. The plurality of limiting holes 2112 are arranged one-to-one corresponding to the plurality of gas cylinders 3, and the aperture of the limiting hole 2112 is smaller than the maximum outer diameter of the gas cylinder 3.

[0069] During installation, since the aperture of the limiting hole 2112 is smaller than the maximum outer diameter of the gas cylinder 3 and the tail of the gas cylinder 3 is arc-shaped, the tail of the gas cylinder 3 can extend into the limiting hole 2112 and does not protrude from the limiting hole 2112. The limiting hole 2112 can limit the axial position of the tail of the gas cylinder 3 and form a protective space between it and the inner baffle 22.

[0070] In some embodiments, a third connecting hole 2113 is provided in the middle of the outer baffle 21. After the bolts are passed through the wheel hub 1 and the third connecting hole 2113 in sequence, the nuts are locked on the bolts, thereby further strengthening the locking between the outer baffle 21 and the wheel hub 1.

[0071] In some embodiments, Figure 7 As shown, the inner baffle 22 includes an inner plate body 221, which is annular in shape so as to avoid the air inlet and outlet at the head of the gas cylinder 3. A second connecting hole 2211 arranged opposite to the first connecting hole 2111 is opened on the inner plate body 221, and a plurality of limiting grooves 2212 are recessed on the surface of the inner plate body 221 facing the gas cylinder 3.

[0072] During installation, the part of the head of the gas cylinder 3 located on the side of the gas inlet and outlet can extend into the limiting groove 2212, and the gas inlet and outlet on the gas cylinder 3 are located in the space surrounded by the inner plate body 221. The limiting groove 2212 can limit the axial position of the head of the gas cylinder 3 and form a protective space between it and the outer baffle 21.

[0073] Specifically, Figure 7 As shown, the limiting groove 2212 extends from the inner circle of the inner plate body 221 to the outer circle, and extends in an approximately semicircular shape, thereby limiting and protecting the side part of the gas inlet and outlet on the head of the gas cylinder 3.

[0074] An embodiment of the second aspect of the present invention provides a fuel cell vehicle. The fuel cell vehicle provided by the embodiment of the second aspect of the present invention includes the above-mentioned fuel supply wheel.

[0075] The fuel cell vehicle provided in the second aspect of the present invention has the fuel supply wheel provided in the embodiment of the first aspect of the present invention, and thus has all the beneficial effects possessed by the fuel supply wheel provided in the embodiment of the first aspect of the present invention.

[0076] In some embodiments, Figure 8As shown, in order to facilitate the filling of each gas cylinder 3 and the supply of gas to the fuel cell system 012 by each gas cylinder 3, the fuel cell vehicle also includes a gas collecting pipe group 5, which is installed on the inner side of the wheel hub 1 along the axial direction of the wheel hub 1. The gas collecting pipe group 5 can collect the gas in each gas collecting bottle 3 or divert the gas therein to each gas collecting bottle 3.

[0077] In some embodiments, Figure 8 As shown, the air collecting pipe group 5 includes a transmission shaft 51 and a fixed shell 52, wherein:

[0078] One end of the transmission shaft 51 is connected to the power source and rotates under the drive of the power source, and the other end of the transmission shaft 51 is fixedly connected to the wheel hub 1 to drive the wheel to rotate. The end of the transmission shaft 51 connected to the wheel hub 1 has a first gas collecting chamber 511, and the side wall of the end is provided with a plurality of gas guide holes 512 connected to the first gas collecting chamber 511. The plurality of gas guide holes 512 are connected to the plurality of gas cylinders 3 through the gas storage pipeline 10 in a one-to-one correspondence, so as to collect the gas discharged from each gas cylinder 3 into the first gas collecting chamber 511 or transfer the gas in the first gas collecting chamber 511 to each gas cylinder 3 respectively. The end of the first gas collecting chamber 511 away from the wheel hub 1 has a first opening for installing the fixed shell 52;

[0079] The fixed shell 52 can be fixedly connected to the frame by connecting parts such as connecting plates. The fixed shell 52 is installed in the first air collecting cavity 511 from the first opening and cooperates with the rotation of the transmission shaft 51, that is, the fixed shell 52 does not rotate with the transmission shaft 51. The fixed shell 52 has a second air collecting cavity 521. The side wall of the fixed shell 52 at one end away from the wheel hub 1 is provided with a total exhaust port 522 connected to the second air collecting cavity 521. The end of the second air collecting cavity 521 close to the wheel hub 1 has a second opening 5211 connected to each air guide hole 512 through the first air collecting cavity 511.

[0080] Among them, a charging and discharging air interface pipeline 8 can be connected to the main exhaust port 522, and the charging and discharging air interface pipeline 8 has an outlet connected to the air supply pipeline 7 and an air inlet connected to the inflation system, and a valve 9 is installed on the charging and discharging air interface pipeline 8.

[0081] When in use, the gas in each gas cylinder 3 can be collected to the first gas collection chamber 511 through the gas storage pipeline 10, and then enter the second gas collection chamber 521 through the second opening 5211, and finally discharged from the total exhaust port 522 to the charging and discharging interface pipeline 8, and enter the gas supply pipeline 7 through the valve 9 to supply gas to the fuel cell system 012. At this time, the total exhaust port 522 is not connected to the air inlet of the charging and discharging interface pipeline 8. When it is necessary to inflate each gas cylinder 3, adjust the valve 9 so that the air inlet of the charging and discharging interface pipeline 8 is connected to the total exhaust port 522, and inflate each gas cylinder 3 through the inflation system. At this time, the total exhaust port 522 is not connected to the air outlet of the charging and discharging interface pipeline 8.

[0082] The valve 9 may be a three-way valve.

[0083] The transmission shaft 51 includes a shaft body and a shell that is sleeved on the outside of the shaft body and connected to the end of the shaft body. A first air collecting chamber 511 is formed between the shaft body and the shell. In order to ensure good sealing between the outer surface of the fixed shell 52, the shaft body and the shell, sealing rings 011 are provided between the fixed shell 52 and the shaft body, and between the fixed shell 52 and the shell, and grease is used for lubrication between the fixed shell 52, the shaft body and the shell.

[0084] In order to limit the axial position of the fixed shell 52 , the first air collecting cavity 511 includes a limiting annular groove, and the outer surface of the fixed shell 52 has a protrusion extending into the limiting annular groove, thereby effectively limiting the axial position of the fixed shell 52 .

[0085] To facilitate the assembly of the fixed shell 52, as shown in FIG. Figure 8 As shown, the housing includes a first housing 513 and a second housing 514 detachably connected to the first housing 513 , and a limiting ring groove is formed between the first housing 513 and the second housing 514 .

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fuel supply wheel, characterized in that: The invention comprises a wheel hub (1) and a baffle assembly (2), wherein the wheel hub (1) has a plurality of gas cylinder installation cavities (11) arranged around the axis of the wheel hub (1), and the gas cylinder installation cavities (11) penetrate the wheel hub (1) in a direction parallel to the axial direction of the wheel hub (1); the baffle assembly (2) is installed on the inner side and the outer side of the wheel hub (1) in the axial direction of the wheel hub (1), and the baffle assembly (2) is used to limit the axial position of each gas cylinder (3) and protect each gas cylinder (3).

2. The fuel supply wheel according to claim 1, characterized in that: The wheel hub (1) comprises a plurality of buffer structures, wherein the buffer structures comprise a gas cylinder storage unit (12) and a plurality of buffer components (13); The gas cylinder storage unit (12) is annular in shape, and each of the buffer components (13) is installed on the inner ring surface of the gas cylinder storage unit (12) and arranged around the axis of the gas cylinder storage unit (12). A gas cylinder installation cavity (11) is formed between each of the buffer components (13), and the buffer component (13) is used to buffer the impact between the wheel hub (1) and the gas cylinder (3).

3. The fuel supply wheel according to claim 2, characterized in that: The buffer assembly (13) comprises an elastic member (131), a connecting plate (132) and a buffer layer (133); The connecting plate (132) comprises an outer side surface and an inner side surface, and the outer side surface abuts against the inner ring surface of the gas cylinder storage unit (12); The elastic member (131) is connected to the outer side surface, and the elastic member (131) is inserted into a mounting groove group concavely arranged on the inner ring surface of the gas cylinder storage unit (12) and provides a buffer force along the radial direction of the gas cylinder storage unit (12); The buffer layer (133) covers the inner side surface, and a gas cylinder installation cavity (11) is formed between the buffer layers (133) of each buffer assembly (13).

4. The fuel supply wheel according to claim 3, characterized in that: The elastic member (131) is configured in plurality, and the plurality of elastic members (131) are arranged at intervals along a direction parallel to the axial direction of the gas cylinder storage unit (12); The mounting slot group comprises a plurality of groups of mounting slots (121) corresponding one-to-one with the plurality of buffer components (13), the mounting slots (121) in each group of the mounting slots (121) being configured in plurality, and the plurality of mounting slots (121) being plugged one-to-one with the plurality of elastic members (131) in the buffer component (13).

5. The fuel supply wheel according to claim 1, characterized in that: The baffle assembly (2) comprises an outer baffle (21) and an inner baffle (22); the outer baffle (21) is mounted on the outer side of the wheel hub (1) via a connecting member (4); and the inner baffle (22) is mounted on the inner side of the wheel hub (1) via the connecting member (4).

6. The fuel supply wheel according to claim 5, characterized in that: The outer baffle (21) comprises an outer plate body (211), and a plurality of limiting holes (2112) are provided on the outer plate body (211), and the plurality of limiting holes (2112) are arranged in a one-to-one correspondence with the plurality of gas cylinders (3), and the aperture of the limiting hole (2112) is smaller than the maximum outer diameter of the gas cylinder (3), and the limiting hole (2112) is used to limit the axial position of the tail of each gas cylinder (3) and to form a protective space with the inner baffle (22).

7. The fuel supply wheel according to claim 5, characterized in that: The inner baffle (22) comprises an inner plate body (221), the inner plate body (221) is annular in shape so as to avoid the gas inlet and outlet of the head of the gas cylinder (3), and a plurality of limiting grooves (2212) are recessed on the surface of the inner plate body (221) facing the gas cylinder (3), the limiting grooves (2212) extend from the inner circle of the inner plate body (221) to the outer circle, and the limiting grooves (2212) are used to limit the axial position of the head of each gas cylinder (3) and form a protective space with the outer baffle (21).

8. A fuel cell vehicle, characterized in that: Comprising a fuel supply wheel as claimed in any one of claims 1 to 7.

9. The fuel cell vehicle according to claim 8, characterized in that: It also comprises a gas collecting pipe group (5), which is installed on the inner side of the wheel hub (1) along the axial direction of the wheel hub (1), and is used to collect the gas in each gas collecting bottle (3) or to divert the gas in the gas collecting bottle to each gas collecting bottle (3).

10. The fuel cell vehicle according to claim 9, characterized in that: The air collecting pipe group (5) comprises a transmission shaft (51) and a fixing shell (52); One end of the transmission shaft (51) is connected to the wheel hub (1) and has a first air collecting cavity (511); a side wall of the transmission shaft (51) close to one end of the wheel hub (1) is provided with a plurality of air guide holes (512) in communication with the first air collecting cavity (511); the plurality of air guide holes (512) are used to be in one-to-one communication with the plurality of gas cylinders (3); and the first air collecting cavity (511) has a first opening at one end away from the wheel hub (1); The fixed shell (52) is installed in the first air collecting cavity (511) from the first opening and rotates and seals with the transmission shaft (51). The fixed shell (52) has a second air collecting cavity (521). A main exhaust port (522) communicating with the second air collecting cavity (521) is provided on the side wall of the end of the fixed shell (52) away from the wheel hub (1). The end of the second air collecting cavity (521) close to the wheel hub (1) has a second opening (5211) communicating with each of the air guide holes (512) through the first air collecting cavity (511).

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