Hydrogen fuel cell hydrogen monitoring device for moped

Abstract

The utility model relates to the technical field of mopeds, and discloses a hydrogen fuel cell hydrogen monitoring device for a moped, which comprises a metal hydrogen storage tank, a motor, a hydrogen fuel cell system, a stainless steel pipe, a pressure reducing valve and an MCU (Microprogrammed Control Unit) module. According to the utility model, the three-way transition part and the pressure detection part form an auxiliary detection device, and then the auxiliary detection device is comprehensively assembled with the metal hydrogen storage tank, the motor, the hydrogen fuel cell system, the stainless steel pipe, the pressure reducing valve and the MCU module for use; the metal hydrogen storage in the metal hydrogen storage tank can be released, and the hydrogen fuel cell system of the three-way transition part and the pressure reducing valve participates in acting, so that electric power is provided for the motor; the power output requirement of the motor is met, meanwhile, the pressure in the metal hydrogen storage tank is detected in real time through the pressure sensor, corresponding pressure signals are transmitted to the MCU module, a curve graph of the pressure and the hydrogen amount is formed after data processing of the MCU module, then driving mileage reference is provided for a driver, and the problems existing in the prior art are solved.

Description

Technical Field

[0001] This utility model relates to the field of electric bicycle technology, specifically to a hydrogen monitoring device for a hydrogen fuel cell in an electric bicycle. Background Technology

[0002] Hydrogen fuel cell-assisted vehicles, as a truly "zero-emission, pollution-free" mode of transportation, are similar in positioning to electric vehicles and are also one of the main development directions for future new energy clean energy vehicles.

[0003] Currently, hydrogen fuel cell-assisted vehicles have demonstrated a series of advantages after numerous real-world tests, including zero carbon emissions, high energy conversion efficiency, and good low-temperature adaptability. Therefore, with their further promotion and application, they should greatly contribute to reducing air pollution, improving the urban environment, and reducing energy consumption. However, hydrogen fuel cell-assisted vehicles also have some issues that need improvement. For example, existing hydrogen fuel cell-assisted vehicles that use metal hydrogen storage cannot monitor the remaining hydrogen in real time, and the corresponding driving range cannot be calculated, which brings some uncertainty to the driver's long-distance driving and reduces driving comfort. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a hydrogen monitoring device for hydrogen fuel cells in electric vehicles, solving the problems mentioned in the background section.

[0005] This utility model provides the following technical solution: a hydrogen monitoring device for a hydrogen fuel cell in a power-assisted vehicle, comprising a metal hydrogen storage tank, a motor, a hydrogen fuel cell system, a stainless steel pipe, a pressure reducing valve, and an MCU module. A three-way transition component is installed between one end of the pressure reducing valve and one end of the stainless steel pipe. A pressure detection component is installed inside the three-way transition component. The MCU module is electrically connected to the pressure detection component via wires. The other end of the stainless steel pipe is connected to the output end of the metal hydrogen storage tank. The other end of the pressure reducing valve is connected to the hydrogen fuel cell system, and the hydrogen fuel cell system is connected to the motor via conduits. The MCU module is electrically connected to the hydrogen fuel cell system via wires.

[0006] The preferred three-way transition component includes a three-way pipe body and a protective sleeve. The two ends of the three-way pipe body are fixedly connected to one end of the pressure reducing valve and one end of the stainless steel pipe, respectively. The remaining end of the three-way pipe body and one end of the protective sleeve are both set as flange structures, and several locking components are provided between the two flange structures. The three-way pipe body and the protective sleeve have the conditions for reciprocating disassembly and installation, providing favorable conditions for subsequent maintenance and replacement of the pressure sensor.

[0007] Selected locking components include bolts and nuts. One end of the bolt is threaded through the two flange structures and then connected to the nut to fix the two flange structures. This ensures the connection strength between the tee pipe body and the protective sleeve, while providing convenient conditions for the subsequent flexible disassembly of the tee pipe body and the protective sleeve. A main sealing ring is nested in the connection gap between the two flange structures to improve the sealing effect between the structures.

[0008] Specifically, the pressure detection component includes a pressure sensor and a transition wire. A support is installed between the surface of the pressure sensor and the inner wall of the protective sleeve. The pressure sensor can detect the internal pressure of the metal hydrogen storage tank connected to the three-way transition component. One end of the transition wire is electrically connected to the pressure sensor, and the other end of the transition wire passes through the end face structure of the other end of the three-way pipe body and is electrically connected to the wire connected to the MCU module. A first leak-proof sealing ring is provided at the fitting point between the transition wire and the end face structure of the other end of the three-way pipe body to ensure the accuracy of the pressure sensor's pressure measurement operation.

[0009] Preferably, the other end of the protective sleeve has an external thread and an auxiliary kit. The auxiliary kit contains a hydrogen sensor, which can detect the hydrogen content inside the auxiliary kit and is electrically connected to the MCU module via wires, thereby gaining a deeper understanding of the overall device's usage status.

[0010] The auxiliary kit includes a cylindrical support frame, a movable sleeve, and a limiting sleeve. One end of the cylindrical support frame is fixedly connected to the outer surface of the other end of the three-way pipe body. A support rod is installed between the housing surface of the hydrogen sensor and the inner wall of the middle part of the cylindrical support frame. The limiting sleeve is fixedly sleeved on the outer side of the other end of the cylindrical support frame. One end of the movable sleeve is snapped onto the outer side of the other end of the cylindrical support frame and close to the limiting sleeve. The inner wall of the other end of the movable sleeve has an internal thread and is threaded to the surface of the other end of the protective sleeve. The auxiliary kit works with the hydrogen sensor to detect the hydrogen that theoretically leaks at the junction of the transition wire and the protective sleeve in real time, improving the overall safety of the device.

[0011] Specifically, the end face structure of the other end of the cylindrical support frame plate is fitted with one end of the transition wire, and a second leak-proof sealing ring is installed at the fitting point of the cylindrical support frame plate and the transition wire to improve the sealing effect of the connection between the two structures. A third leak-proof sealing ring is provided between the inner wall of one end of the movable sleeve and the nearby limiting sleeve plate, which similarly improves the sealing effect of the connection between the movable sleeve and the limiting sleeve plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model comprises an auxiliary detection device consisting of a three-way transition component and a pressure detection component. When integrated with a metal hydrogen storage tank, a motor, a hydrogen fuel cell system, a stainless steel pipe, a pressure reducing valve, and an MCU module, it ensures that the hydrogen stored in the metal hydrogen storage tank is released and contributes to the hydrogen fuel cell system via the three-way transition component and pressure reducing valve, providing power to the motor and meeting its power output requirements. Simultaneously, a pressure sensor monitors the pressure inside the metal hydrogen storage tank in real time and transmits the corresponding pressure signal to the MCU module. After data processing by the MCU module, a pressure-hydrogen quantity curve is generated, providing the driver with a mileage reference and solving the problems existing in the prior art.

[0014] 2. This utility model consists of an auxiliary protection device composed of an auxiliary kit and a hydrogen sensor. After further assembly with the aforementioned auxiliary detection device, the auxiliary kit can monitor in real time the potential leakage problem that may occur in the auxiliary detection device due to increased fatigue of the sealing structure, and provide timely warnings, thereby further improving the overall safety of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram illustrating the principle of the structure of this utility model;

[0016] Figure 2 This is a partial cross-sectional schematic diagram of the three-way transition component of this utility model;

[0017] Figure 3 This is a top view schematic diagram of the three-way transition component of this utility model;

[0018] Figure 4 The structure of this utility model Figure 2 Enlarged view of point A in the middle;

[0019] Figure 5 The structure of this utility model Figure 2 Enlarged view of point B in the middle;

[0020] Figure 6 This is a pressure change curve of the metal hydrogen storage tank of this utility model.

[0021] In the diagram: 1. Metal hydrogen storage tank; 2. Motor; 3. Hydrogen fuel cell system; 4. Stainless steel pipe; 5. Pressure reducing valve; 6. Three-way transition component; 61. Three-way pipe body; 62. Protective sleeve; 7. MCU module; 8. Pressure detection component; 81. Pressure sensor; 82. Transition wire; 9. Auxiliary kit; 91. Cylindrical support frame plate; 92. Movable sleeve; 93. Limiting sleeve plate; 94. Third leak-proof sealing ring; 10. Hydrogen sensor; 11. Main sealing ring; 12. Bolt; 13. Nut. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] Please see Figure 1-3 , Figure 6 A hydrogen monitoring device for a hydrogen fuel cell in a power-assisted vehicle includes a metal hydrogen storage tank 1, a motor 2, a hydrogen fuel cell system 3, a stainless steel pipe 4, a pressure reducing valve 5, and an MCU module 7. A three-way transition component 6 is installed between one end of the pressure reducing valve 5 and one end of the stainless steel pipe 4. The three-way transition component 6 includes a three-way pipe body 61 and a protective sleeve 62. The two ends inside the three-way pipe body 61 are fixedly connected to one end of the pressure reducing valve 5 and one end of the stainless steel pipe 4, respectively. The remaining end of the three-way pipe body 61 and one end of the protective sleeve 62 are both set as flange structures, and several locking components are provided between the two flange structures.

[0025] The three-way transition component 6 has a pressure detection component 8 installed inside. The MCU module 7 is electrically connected to the pressure detection component 8 through wires. The other end of the stainless steel pipe 4 is connected to the output end of the metal hydrogen storage tank 1. The other end of the pressure reducing valve 5 is connected to the hydrogen fuel cell system 3 and the hydrogen fuel cell system 3 is connected to the motor 2 through conduits. The MCU module 7 is electrically connected to the hydrogen fuel cell system 3 through wires.

[0026] The pressure detection component 8 includes a pressure sensor 81 and a transition wire 82. A support is installed between the surface of the pressure sensor 81 and the inner wall of the protective sleeve 62. The pressure sensor 81 can detect the internal pressure of the metal hydrogen storage tank 1 connected to the three-way transition component 6 through the three-way transition component 6. One end of the transition wire 82 is electrically connected to the pressure sensor 81, and the other end of the transition wire 82 passes through the end face structure of the other end of the three-way pipe body 61 and is electrically connected to the wire connected to the MCU module 7. A first leak-proof sealing ring is provided at the fitting point between the transition wire 82 and the end face structure of the other end of the three-way pipe body 61 to ensure the accuracy of the pressure measurement operation of the pressure sensor 81. The three-way pipe body 61 and the protective sleeve 62 have the conditions for reciprocating disassembly and installation, providing favorable conditions for subsequent maintenance and replacement of the pressure sensor 81.

[0027] Several locking components include bolts 12 and nuts 13. One end of the bolt 12 is threaded through the two flange structures and then connected to the nut 13 to fix the two flange structures. This ensures the connection strength between the tee pipe body 61 and the protective sleeve 62, while providing convenient conditions for the subsequent flexible disassembly of the tee pipe body 61 and the protective sleeve 62. A main sealing ring 11 is nested in the connection gap between the two flange structures to improve the sealing effect between the structures.

[0028] Working principle: During use, the hydrogen stored in the metal hydrogen storage tank 1 releases hydrogen, which then contributes to the hydrogen fuel cell system 3 via the three-way transition component 6 and the pressure reducing valve 5, providing power to the motor 2 and meeting its power output requirements. The release of hydrogen from the metal hydrogen storage tank 1 is related to its own pressure. Under normal conditions with a full tank of hydrogen, the pressure inside the metal hydrogen storage tank 1 is about 1.5 MPa. As the amount of hydrogen in the metal hydrogen storage tank 1 decreases, the pressure decreases. The pressure change can be detected in real time by the pressure sensor 81, and the corresponding pressure signal is transmitted to the MCU module 7. After data processing by the MCU module 7, a pressure-hydrogen quantity curve is generated, which provides the driver with a reference for driving mileage.

[0029] Example 2

[0030] Please see Figure 1-6 A hydrogen monitoring device for a hydrogen fuel cell in a power-assisted vehicle includes a metal hydrogen storage tank 1, a motor 2, a hydrogen fuel cell system 3, a stainless steel pipe 4, a pressure reducing valve 5, and an MCU module 7. A three-way transition component 6 is installed between one end of the pressure reducing valve 5 and one end of the stainless steel pipe 4. The three-way transition component 6 includes a three-way pipe body 61 and a protective sleeve 62. The two ends inside the three-way pipe body 61 are fixedly connected to one end of the pressure reducing valve 5 and one end of the stainless steel pipe 4, respectively. The remaining end of the three-way pipe body 61 and one end of the protective sleeve 62 are both set as flange structures. Several locking components are set between the two flange structures. Each locking component includes a bolt 12 and a nut 13. One end of the bolt 12 is fixedly installed by passing through the two flange structures and then being threadedly connected to the nut 13. This ensures the connection strength between the three-way pipe body 61 and the protective sleeve 62 while providing convenient conditions for the flexible disassembly of the three-way pipe body 61 and the protective sleeve 62. A main sealing ring 11 is nested in the connection gap between the two flange structures to improve the sealing effect between the structures.

[0031] The three-way transition component 6 internally houses a pressure detection component 8. The MCU module 7 is electrically connected to the pressure detection component 8 via wires. The other end of the stainless steel pipe 4 is connected to the output end of the metal hydrogen storage tank 1. The other end of the pressure reducing valve 5 is connected to the hydrogen fuel cell system 3, and the hydrogen fuel cell system 3 is connected to the motor 2 via conduits. The MCU module 7 is electrically connected to the hydrogen fuel cell system 3 via wires. The pressure detection component 8 includes a pressure sensor 81 and a transition wire 82. A support is installed between the surface of the pressure sensor 81 and the inner wall of the protective sleeve 62. The pressure sensor 81 can be connected to the three-way transition component 6 via pressure detection. The internal pressure of the metal hydrogen storage tank 1, which is connected to the three-way transition component 6, is detected. One end of the transition wire 82 is electrically connected to the pressure sensor 81, and the other end of the transition wire 82 passes through the end face structure of the other end of the three-way pipe body 61 and is electrically connected to the wire connected to the MCU module 7. A first leak-proof sealing ring is provided at the fitting point between the transition wire 82 and the end face structure of the other end of the three-way pipe body 61 to ensure the accuracy of the pressure measurement operation of the pressure sensor 81. The three-way pipe body 61 and the protective sleeve 62 have the conditions for reciprocating disassembly and installation, which provides favorable conditions for subsequent maintenance and replacement of the pressure sensor 81.

[0032] The other end of the protective sleeve 62 has an external thread and is fitted with an auxiliary kit 9. The auxiliary kit 9 ​​is fitted with a hydrogen sensor 10. The hydrogen sensor 10 can detect the hydrogen content inside the auxiliary kit 9 ​​and is electrically connected to the MCU module 7 through a wire, thereby gaining a deeper understanding of the overall device's usage status.

[0033] Auxiliary kit 9 ​​includes a cylindrical support frame plate 91, a movable sleeve 92, and a limiting sleeve 93. One end of the cylindrical support frame plate 91 is fixedly connected to the outer surface of the other end of the three-way pipe body 61. A support rod is installed between the housing surface of the hydrogen sensor 10 and the inner wall of the middle part of the cylindrical support frame plate 91. The limiting sleeve 93 is fixedly sleeved on the outer side of the other end of the cylindrical support frame plate 91. One end of the movable sleeve 92 is snapped onto the outer side of the other end of the cylindrical support frame plate 91 and close to the limiting sleeve 93. The inner wall of the other end of the movable sleeve 92 has an internal thread and is threaded to the surface of the other end of the protective sleeve 62. Component 9 works in conjunction with hydrogen sensor 10 to detect hydrogen that could theoretically leak at the junction of transition wire 82 and protective sleeve 62 in real time, improving the overall safety of the device. The end face structure of the other end of the cylindrical support frame plate 91 is fitted with one end of the transition wire 82, and a second leak-proof sealing ring is installed at the junction of the cylindrical support frame plate 91 and the transition wire 82 to improve the sealing effect of the connection between the two structures. A third leak-proof sealing ring 94 is provided between the inner wall of one end of the movable sleeve 92 and the nearby limiting sleeve 93, which similarly improves the sealing effect of the connection between the movable sleeve 92 and the limiting sleeve 93.

[0034] Working principle: During use, the hydrogen release and pressure changes of the metal hydrogen storage tank 1 are understood through the operation of the above-mentioned embodiment 1. As the overall device is used for a period of time, the fatigue wear of the first leak-proof sealing ring between the transition wire 82 and the protective sleeve 62 increases, resulting in leakage. The auxiliary kit 9 ​​will first perform secondary sealing to preserve the escaped hydrogen. At the same time, the hydrogen sensor 10 will detect the hydrogen content inside the auxiliary kit 9 ​​in real time and transmit the relevant data to the MCU module 7. When it exceeds the preset maximum value in the MCU module 7, it will promptly feed back to the existing background equipment to remind the driver to perform maintenance in a timely manner and ensure driving safety.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Additionally, in the accompanying drawings of this utility model, the fill patterns are merely for distinguishing layers and do not constitute any other limitation.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydrogen monitoring device for a hydrogen fuel cell in a power-assisted vehicle, comprising a metal hydrogen storage tank (1), a motor (2), a hydrogen fuel cell system (3), a stainless steel pipe (4), a pressure reducing valve (5), and an MCU module (7), characterized in that: A three-way transition component (6) is installed between one end of the pressure reducing valve (5) and one end of the stainless steel pipe (4). A pressure detection component (8) is installed inside the three-way transition component (6). The MCU module (7) is electrically connected to the pressure detection component (8) through a wire. The other end of the stainless steel pipe (4) is connected to the output end of the metal hydrogen storage tank (1). The other end of the pressure reducing valve (5) is connected to the hydrogen fuel cell system (3) and the hydrogen fuel cell system (3) is connected to the motor (2) through conduits. The MCU module (7) is electrically connected to the hydrogen fuel cell system (3) through a wire.

2. The hydrogen monitoring device for a hydrogen fuel cell in a power-assisted vehicle according to claim 1, characterized in that: The three-way transition component (6) includes a three-way pipe body (61) and a protective sleeve (62). The two ends of the three-way pipe body (61) are fixedly connected to one end of the pressure reducing valve (5) and one end of the stainless steel pipe (4), respectively. The remaining end of the three-way pipe body (61) and one end of the protective sleeve (62) are both set as flange structures, and several locking components are provided between the two flange structures.

3. The hydrogen monitoring device for a hydrogen fuel cell in a power-assisted vehicle according to claim 2, characterized in that: Each of the locking components includes a bolt (12) and a nut (13). One end of the bolt (12) is threaded through the two flange structures and then connected to the nut (13) to fix the two flange structures. A main sealing ring (11) is nested in the connection gap between the two flange structures.

4. The hydrogen monitoring device for a hydrogen fuel cell in a power-assisted vehicle according to claim 2, characterized in that: The pressure detection component (8) includes a pressure sensor (81) and a transition wire (82). A support is installed between the surface of the pressure sensor (81) and the inner wall of the protective sleeve (62). The pressure sensor (81) can detect the internal pressure of the metal hydrogen storage tank (1) connected to the three-way transition component (6) through the three-way transition component (6). One end of the transition wire (82) is electrically connected to the pressure sensor (81), and the other end of the transition wire (82) passes through the end face structure of the other end of the three-way pipe body (61) and is electrically connected to the wire connected to the MCU module (7). A first leak-proof sealing ring is provided at the fitting point between the transition wire (82) and the end face structure of the other end of the three-way pipe body (61).

5. The hydrogen monitoring device for a hydrogen fuel cell in a power-assisted vehicle according to claim 4, characterized in that: The other end of the protective sleeve (62) has an external thread and is fitted with an auxiliary kit (9). The auxiliary kit (9) is fitted with a hydrogen sensor (10). The hydrogen sensor (10) can detect the hydrogen content inside the auxiliary kit (9) and is electrically connected to the MCU module (7) through a wire.

6. The hydrogen monitoring device for a hydrogen fuel cell in a power-assisted vehicle according to claim 5, characterized in that: The auxiliary kit (9) includes a cylindrical support frame plate (91), a movable sleeve (92), and a limiting sleeve plate (93). One end of the cylindrical support frame plate (91) is fixedly connected to the outer surface of the other end of the three-way pipe body (61). A support rod is installed between the housing surface of the hydrogen sensor (10) and the inner wall of the middle part of the cylindrical support frame plate (91). The limiting sleeve plate (93) is fixedly sleeved on the outer side of the other end of the cylindrical support frame plate (91). One end of the movable sleeve (92) is snapped onto the outer side of the other end of the cylindrical support frame plate (91) and close to the limiting sleeve plate (93). The inner wall of the other end of the movable sleeve (92) is provided with an internal thread and is threadedly connected to the surface of the other end of the protective sleeve (62).

7. A hydrogen monitoring device for a hydrogen fuel cell in a power-assisted vehicle according to claim 6, characterized in that: The end face structure of the other end of the cylindrical support frame plate (91) is fitted with one end of the transition wire (82), and a second leak-proof sealing ring is installed at the fitting point of the cylindrical support frame plate (91) and the transition wire (82). A third leak-proof sealing ring (94) is provided between the inner wall of one end of the movable sleeve (92) and the nearby limiting sleeve plate (93).

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