Fuel cell vehicle and gas supply pipeline thereof

Abstract

The utility model discloses a fuel cell vehicle and an air supply pipeline thereof in the technical field of hydrogen fuel vehicles, and aims to solve the problems that a power supply air filter is easily blocked by rainwater and dust and the air inflow of the power supply air filter is small in the prior art. The method comprises the steps that a first air outlet for supplying air to the gas-electric air filter and an air inlet in the energy supply direction for supplying air to a power supply air filter are integrated in an air inlet straight pipe, air is uniformly supplied through an air inlet grille, and the air inlet flow of the air inlet in the energy supply direction is compensated by utilizing the characteristics that an air supply pipeline of the gas-electric air filter is large in air supply pressure and flow; the influence of low air inflow caused by blockage of the power supply air filter is weakened; meanwhile, rainwater and dust are prevented from entering through the bent pipe structure of the air inlet manifold, and the blocking condition of the power supply air filter is relieved.

Description

Technical Field

[0001] The utility model relates to a fuel cell vehicle and an air supply pipeline thereof, belonging to the technical field of hydrogen fuel vehicles. Background Art

[0002] The fuel-electric intake system of a hydrogen fuel cell vehicle is a key factor in ensuring the proper functioning of the fuel-electric engine. Its primary purpose is to filter out impurities such as dust and particulate matter from the air and provide clean air to the fuel-electric engine. Ensuring a simple and rational layout of intake system components and smooth airflow is crucial to the safety and reliability of the fuel-electric engine.

[0003] In the existing common structure, hydrogen fuel vehicles generally use independent air intake systems for the fuel-electric part and the energy supply part. The two systems are independent of each other, but the air intake flow rate requirement of the electric air compressor of the energy supply part is smaller than that of the fuel-electric engine. Therefore, the dust holding capacity of the air filter of the energy supply part is relatively small. During use, the air intake of the air filter element needs to be regularly maintained. In addition, the independent air intake system of the energy supply part has insufficient drainage performance, which can easily cause rainwater to flow into the air filter and form mud with the dust in the air filter element, clogging the filter element and causing greater intake resistance, affecting the air intake of the energy supply part. In severe cases, it may even lead to insufficient air storage capacity, resulting in problems such as braking safety. Utility Model Content

[0004] The purpose of this application is to overcome the deficiencies in the prior art and to provide an air filter that prevents rainwater and dust from accidentally entering the energy supply part, a fuel cell vehicle that increases the air intake of the energy supply part, and its air supply pipeline.

[0005] To achieve the above objectives, this application is implemented using the following technical solutions:

[0006] In a first aspect, the present disclosure provides an air supply pipeline for a fuel cell vehicle, comprising:

[0007] An air intake pipe, comprising an inner cavity, an air intake grille, and a first air outlet, wherein the air intake grille is in communication with the inner cavity and is used to supply air to the inner cavity, and the first air outlet is in communication with the inner cavity and is used to supply air to the fuel-electric air filter;

[0008] The intake manifold further includes an intake manifold, a tube wall of the intake manifold being connected to the inner cavity wall, the intake manifold forming a second air outlet outside the inner cavity, the second air outlet being used to supply air to the power supply air filter, the intake manifold forming an air inlet in the power supply direction within the inner cavity, and a portion of the tube wall of the intake manifold near the air intake grille forming a curved tube structure to prevent the entry of rainwater and dust;

[0009] The air intake pipe also includes a collection bag communicated with the bottom of the inner cavity.

[0010] In some embodiments of the first aspect,

[0011] The direction of the air intake grille is perpendicular to the direction of the first air outlet, the tube wall of the intake manifold forms a 90° curved tube structure, the direction of the energy supply direction air intake is perpendicular to the direction of the air intake grille, and the direction of the energy supply direction air intake is perpendicular to the direction of the second air outlet.

[0012] In some embodiments of the first aspect, the first air outlet is connected to the strut air outlet hose, the strut air outlet hose is connected to the air intake steel pipe, the air intake steel pipe is connected to the first air filter air intake hose, the first air filter air intake hose is connected to the air inlet of the fuel-electric air filter, and the air outlet of the fuel-electric air filter is connected to the fuel-electric air intake hose.

[0013] In some embodiments of the first aspect, the first air outlet and the strut air outlet hose, the strut air outlet hose and the air intake steel pipe, the air intake steel pipe and the first air filter air intake hose, and the first air filter air intake hose and the fuel-electric air filter are all connected by American heavy-duty hose clamps.

[0014] In some embodiments of the first aspect, the second air outlet is connected to the second air filter air intake hose, the second air filter air intake hose is connected to the air inlet of the power supply air filter, the air outlet of the power supply air filter is connected to the air compressor air intake hose, the air compressor air intake hose is connected to the air compressor air intake steel pipe, the air compressor air intake steel pipe is connected to a high-temperature resistant hose, and the high-temperature resistant hose is connected to the air inlet of the electric air compressor.

[0015] In some embodiments of the first aspect, the air outlet of the power supply air filter is connected to the second air filter air intake hose through an American heavy-duty hose clamp, and the air inlet of the power supply air filter is connected to the air compressor air intake hose through an American heavy-duty hose clamp; the air compressor air intake hose and the air compressor air intake steel pipe are connected through an American heavy-duty hose clamp.

[0016] In some embodiments of the first aspect, both ends of the high-temperature resistant hose are respectively connected to the air compressor air intake steel pipe and the air inlet of the electric air compressor through steel belt-type elastic hose clamps.

[0017] In some embodiments of the first aspect, the air supply pipeline also includes an air inlet duct fixed on the rear panel of the cab, and the bellows is fixed to the air outlet of the air inlet duct through an A-type worm gear drive hose ring clamp, and the bellows is connected to the air intake grille.

[0018] In a second aspect, the present application also provides a fuel cell vehicle, comprising the gas supply pipeline of the fuel cell vehicle described in any embodiment of the first aspect.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The fuel cell vehicle and its air supply pipeline provided by the present application integrate the first air outlet supplying air to the fuel-electric air filter and the air inlet in the energy supply direction supplying air to the power supply air filter into the air intake pipe, and the air is supplied uniformly by the air intake grille. The characteristics of high air supply pressure and large flow of the air supply pipeline of the fuel-electric air filter are utilized to compensate for the air flow of the air inlet in the energy supply direction, and weaken the impact of low air intake volume caused by blockage of the power supply air filter; at the same time, the curved pipe structure of the intake manifold blocks the entry of rainwater and dust, thereby alleviating the blockage of the power supply air filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the present application or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0022] Figure 1 Schematic diagram of the structure of the gas supply pipeline of the fuel cell vehicle provided in this embodiment;

[0023] Figure 2 yes Figure 1 Schematic diagram of the structure of the middle intake pipe;

[0024] In the figure: 1 - Intake duct. 2 - A-type worm drive hose clamp. 3 - Bellows. 4 - Intake strut. 5 - Stud outlet hose. 6 - American heavy-duty hose clamp. 7 - Intake steel pipe. 8 - First air filter intake hose. 9 - Gas-electric air filter. 10 - Gas-electric air filter intake hose. 11 - Second air filter intake hose. 12 - Power supply air filter. 13 - Air compressor intake hose. 14 - Air compressor intake steel pipe. 15 - Steel belt elastic hose clamp. 16 - High-temperature-resistant hose. 17 - Electric air compressor.

[0025] 4a-air intake grille. 4b-first air outlet. 4c-intake manifold. 4d-air intake in the energy supply direction. 4e-second air outlet. 4f-collection bag. 4g-inner cavity. 4h-inner cavity wall. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the present application / the present application's embodiments to clearly and completely describe the technical solutions of the present application / the present application's embodiments. Obviously, the described embodiments are only part of the embodiments of the present application / the present application, and not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present application / the present application, its application, or use. Example 1

[0027] This embodiment provides an air supply pipeline for a fuel cell vehicle to solve the problems in the prior art of rainwater and dust easily clogging the power supply air filter and the small air intake volume of the power supply air filter.

[0028] refer to Figure 1 and Figure 2 The fuel cell vehicle gas supply pipeline provided in this embodiment includes:

[0029] The air intake pipe 4 includes an inner cavity 4g, an air intake grille 4a, and a first air outlet 4b. The air intake grille 4a is connected to the inner cavity 4g and is used to supply air to the inner cavity 4g. The first air outlet 4b is connected to the inner cavity 4g and is used to supply air to the fuel-electric air filter 9.

[0030] The intake manifold 4 also includes an intake manifold 4c. The wall of the intake manifold 4c is connected to the inner cavity wall 4h. The intake manifold 4c is outside the inner cavity 4g, forming a second air outlet 4e. The second air outlet 4e is used to supply air to the power supply air filter 12. The intake manifold 4c is inside the inner cavity 4g, forming an energy supply direction air inlet 4d. The wall of the intake manifold 4c near the air intake grille 4a forms a curved pipe structure to prevent the entry of rainwater and dust.

[0031] The air intake pipe 4 further includes a collecting bag 4f connected to the bottom of the inner cavity 4g, and the collecting bag 4f is used to collect dust and rainwater.

[0032] In conventional fuel cell vehicles, the air supply lines for the fuel-electric air filter and the power supply air filter are arranged separately. However, in this embodiment, an intake pipe 4 is provided. This pipe draws air through the intake grille 4a, then supplies air to the fuel-electric air filter 9 through the first air outlet 4b. It then supplies air to the power supply air filter 12 through the power supply direction air inlet 4d and the second air outlet 4e. In other words, the air supply lines for the fuel-electric air filter 9 and the power supply air filter 12 are combined at the initial air source supply. Generally speaking, the air supply pressure and flow rate of the pipeline supplying the fuel-electric air filter 9 are greater than those of the pipeline supplying the power supply air filter 12. Through pressure conduction within the inner cavity 4g, the air supply pressure at the energy-supplying air inlet 4d and the second air outlet 4e is higher, exceeding that of the air supply pipeline supplying the power supply air filter in conventional fuel cell vehicles. When the filter element in the power supply air filter 12 becomes clogged with dust and rainwater, this compensates for the air supply pressure of the power supply air filter 12, ensuring the intake volume. Furthermore, the curved structure of the intake manifold 4c blocks the ingress of rainwater and dust, mitigating the risk of dust and rainwater entering and clogging the power supply air filter 12, thereby reducing the rate of decrease in intake volume in the energy supply section.

[0033] In summary, the air supply pipeline of the fuel cell vehicle provided in this embodiment alleviates the blockage of the power supply air filter 12 and increases the air intake volume of the energy supply part. Example 2

[0034] This embodiment provides an air supply pipeline for a fuel cell vehicle. This embodiment is optimized based on the first embodiment to improve the technical effect and refine the technical solution. For details not fully described in this embodiment, please refer to the first embodiment.

[0035] refer to Figure 2 As one of the embodiments, the direction of the air intake grille 4a is perpendicular to the direction of the first air outlet 4b, taking into account low air intake resistance and reducing the amount of dust and rainwater entering; based on a similar principle, the tube wall of the intake manifold 4c forms a 90° curved tube structure, which ensures smooth passage of air while reducing the amount of dust and rainwater entering. The direction of the air intake 4d in the energy supply direction is perpendicular to the direction of the air intake grille 4a, reducing the amount of dust and rainwater entering. The direction of the air intake 4d in the energy supply direction is perpendicular to the direction of the second air outlet 4e, and some rainwater is adsorbed by the tube wall of the intake manifold 4c.

[0036] As one example, refer to Figure 1 The first air outlet 4b is connected to the push pipe air outlet hose 5, the push pipe air outlet hose 5 is connected to the air intake steel pipe 7, the air intake steel pipe 7 is connected to the first air filter air intake hose 8, the first air filter air intake hose 8 is connected to the air inlet of the fuel-electric air filter 9, the air outlet of the fuel-electric air filter 9 is connected to the fuel-electric air intake hose 10, and the subsequent components (such as the fuel-electric engine) connected to the fuel-electric air intake hose 10 provide air supply pressure.

[0037] As one embodiment, the fuel cell vehicle's air supply line also includes a plurality of American heavy-duty hose clamps 6, which are connected between the first air outlet 4b and the strut outlet hose 5, between the strut outlet hose 5 and the air intake steel pipe 7, between the air intake steel pipe 7 and the first air filter air intake hose 8, and between the first air filter air intake hose 8 and the fuel-electric air filter 9. It should be noted that some American heavy-duty hose clamps 6 are not in Figure 1 The winning bid was awarded.

[0038] As one embodiment, the second air outlet 4e is connected to the second air filter intake hose 11, Figure 1 The second air filter air intake hose 11 is connected to the air inlet of the power supply air filter 12, the air outlet of the power supply air filter 12 is connected to the air compressor air intake hose 13, the air compressor air intake hose 13 is connected to the air compressor air intake steel pipe 14, the air compressor air intake steel pipe 14 is connected to the high temperature resistant hose 16, the high temperature resistant hose 16 is connected to the air inlet of the electric air compressor 17, and the electric air compressor 17 provides the air supply pressure.

[0039] As one embodiment, the air outlet of the power supply air filter 12 is connected to the second air filter air inlet hose 11 through an American heavy-duty hose clamp 6, and the air inlet of the power supply air filter 12 is connected to the air compressor air inlet hose 13 through an American heavy-duty hose clamp 6; the air compressor air inlet hose 13 and the air compressor air inlet steel pipe 14 are connected through an American heavy-duty hose clamp 6. It should be noted that some American heavy-duty hose clamps 6 are not Figure 1 The winning bid was awarded.

[0040] As one example, refer to Figure 1 The two ends of the high temperature resistant hose 16 are respectively connected to the air compressor air inlet steel pipe 14 and the air inlet of the electric air compressor 17 through a steel belt type elastic hose clamp 15.

[0041] As one embodiment, the air supply pipeline also includes an air inlet duct 1 fixed on the rear wall of the cab, and the bellows 3 is fixed to the air outlet of the air inlet duct 1 through an A-type worm gear drive hose ring hoop 2, and the bellows 3 is connected to the air intake grille 4a.

[0042] As one example, refer to Figure 2 The air supply pressure near the first air outlet 4b is high, which is more likely to attract dust and rainwater. Therefore, the collection bag 4f is arranged close to the first air outlet 4b, and a funnel structure is formed for the collection bag 4f on the inner cavity wall 4h to facilitate the influx of dust and rainwater.

[0043] As one example, refer to Figure 1 The air inlet of the air inlet 1 is set on the side to reduce the probability of rainwater entering and improve the drainage capacity of the energy supply part.

[0044] In addition, by changing the diameter or ratio of the first air outlet 4b and the energy supply direction air inlet 4d, the gas consumption of the fuel-electric engines of different powers of different hydrogen fuel vehicles can be matched, so that the flow rate of air diversion can adapt to the working requirements of the intake systems of various hydrogen fuel vehicles, and better ensure the normal operation of the fuel-electric part and the energy supply part.

[0045] The air supply pipeline for fuel cell vehicles provided in this embodiment solves the problems of small dust holding capacity and easy water clogging of the air filter of hydrogen fuel vehicles, and has a long maintenance cycle, and provides sufficient and clean air for the stable operation and braking of hydrogen fuel vehicles. Example 3

[0046] This embodiment provides a fuel cell vehicle, including the gas supply pipeline of the fuel cell vehicle provided in either embodiment one or two. Therefore, the fuel cell vehicle provided in this embodiment has the same technical effects as those in embodiment one or two, which will not be repeated here.

[0047] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0048] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed", "connected", "connected", "provided at", "provided with", "located at", "installed", "set", etc. 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 directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood based on specific circumstances. "Hinged" includes "rotational connection".

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

Claims

1. A fuel cell vehicle air supply pipeline, characterized in that: include, An air intake pipe (4) comprising an inner cavity (4g), an air intake grille (4a) and a first air outlet (4b), wherein the air intake grille (4a) is in communication with the inner cavity (4g) and is used to supply air to the inner cavity (4g), and the first air outlet (4b) is in communication with the inner cavity (4g) and is used to supply air to a fuel-electric air filter (9); The intake manifold (4) further comprises an intake manifold (4c), the tube wall of the intake manifold (4c) being connected to the inner cavity wall (4h), the intake manifold (4c) forming a second air outlet (4e) outside the inner cavity (4g), the second air outlet (4e) being used to supply air to the power supply air filter (12), the intake manifold (4c) forming an energy supply direction air inlet (4d) inside the inner cavity (4g), and the tube wall of the intake manifold (4c) forming a curved tube structure near the intake grille (4a) to prevent the entry of rainwater and dust; The air intake pipe (4) further comprises a collection bag (4f) in communication with the bottom of the inner cavity (4g).

2. The gas supply pipeline of a fuel cell vehicle according to claim 1, characterized in that: The orientation of the air intake grille (4a) is perpendicular to the orientation of the first air outlet (4b); the tube wall of the air intake manifold (4c) forms a 90° curved tube structure; the orientation of the energy supply direction air intake (4d) is perpendicular to the orientation of the air intake grille (4a); and the orientation of the energy supply direction air intake (4d) is perpendicular to the orientation of the second air outlet (4e).

3. The gas supply pipeline of a fuel cell vehicle according to claim 1, characterized in that: The first air outlet (4b) is connected to the push tube air outlet hose (5), the push tube air outlet hose (5) is connected to the air intake steel pipe (7), the air intake steel pipe (7) is connected to the first air filter air intake hose (8), the first air filter air intake hose (8) is connected to the air intake of the fuel-electric air filter (9), and the air outlet of the fuel-electric air filter (9) is connected to the fuel-electric air intake hose (10).

4. The gas supply pipeline of a fuel cell vehicle according to claim 3, characterized in that: The first air outlet (4b) and the support pipe air outlet hose (5), the support pipe air outlet hose (5) and the air intake steel pipe (7), the air intake steel pipe (7) and the first air filter air intake hose (8), and the first air filter air intake hose (8) and the fuel-electric air filter (9) are respectively connected through American heavy-duty hose clamps (6).

5. The gas supply pipeline of a fuel cell vehicle according to claim 1, characterized in that: The second air outlet (4e) is connected to the second air filter air inlet hose (11), the second air filter air inlet hose (11) is connected to the air inlet of the power supply air filter (12), the air outlet of the power supply air filter (12) is connected to the air compressor air inlet hose (13), the air compressor air inlet hose (13) is connected to the air compressor air inlet steel pipe (14), the air compressor air inlet steel pipe (14) is connected to the high temperature resistant hose (16), and the high temperature resistant hose (16) is connected to the air inlet of the electric air compressor (17).

6. The gas supply pipeline of a fuel cell vehicle according to claim 5, characterized in that: The air outlet of the power supply air filter (12) is connected to the second air filter air inlet hose (11) through an American heavy-duty hose clamp (6), and the air inlet of the power supply air filter (12) is connected to the air compressor air inlet hose (13) through an American heavy-duty hose clamp (6); the air compressor air inlet hose (13) and the air compressor air inlet steel pipe (14) are connected through an American heavy-duty hose clamp (6).

7. The gas supply pipeline of a fuel cell vehicle according to claim 5, characterized in that: The two ends of the high-temperature resistant hose (16) are respectively connected to the air compressor air inlet steel pipe (14) and the air inlet of the electric air compressor (17) through steel belt type elastic hose clamps (15).

8. The gas supply pipeline of a fuel cell vehicle according to claim 1, characterized in that: The air supply pipeline also includes an air inlet duct (1) fixed on the rear enclosure of the cab, a bellows (3) fixed to the air outlet of the air inlet duct (1) via an A-type worm gear drive hose hoop (2), and the bellows (3) is in communication with the air inlet grille (4a).

9. A fuel cell vehicle, characterized in that: An air supply pipeline for a fuel cell vehicle comprising any one of claims 1 to 8.

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