Vehicle-mounted hydrogen energy fuel cell, control system and control method

Abstract

The invention relates to the technical field of hydrogen source energy supply control, in particular to a vehicle-mounted hydrogen energy fuel cell, a control system and a control method, and the vehicle-mounted hydrogen energy fuel cell comprises two end plates and a cell unit bound between the two end plates, each battery unit comprises a plurality of hydrogen conveying plates, oxygen conveying plates arranged between the adjacent hydrogen conveying plates, proton exchange plates arranged between the oxygen conveying plates and the hydrogen conveying plates, hydrogen catalytic membranes arranged between the hydrogen conveying plates and the proton exchange plates, and oxygen catalytic membranes arranged between the oxygen conveying plates and the proton exchange plates; labyrinth grooves are formed in the two sides of the oxygen conveying plate and the two sides of the hydrogen conveying plate correspondingly. An oxygen input groove and a hydrogen exhaust groove are formed in one side of the hydrogen conveying plate, one side of the proton exchange plate and one side of the oxygen conveying plate correspondingly. According to the vehicle-mounted hydrogen energy fuel cell, the control system and the control method, the structure is simple, the oxygen and hydrogen conveying safety is improved, the vehicle-mounted hydrogen energy fuel cell is convenient to assemble, and a user can start a vehicle conveniently.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydrogen source power supply control, in particular to a vehicle-mounted hydrogen energy fuel cell, a control system and a control method. BACKGROUND

[0002] The vehicle-mounted hydrogen energy fuel cell is an advanced and environmentally friendly energy conversion device. It converts hydrogen and oxygen into electrical energy through electrochemical reactions, and then provides the required power for the vehicle. The working principle of the vehicle-mounted hydrogen energy fuel cell is based on the reverse reaction of water electrolysis. That is, by supplying hydrogen to the anode part of the fuel cell and delivering oxygen to the cathode part, under the catalytic action of the catalyst, hydrogen is oxidized into hydrogen ions and electrons on the anode, hydrogen ions are transmitted to the cathode through the proton exchange membrane, and electrons are transmitted to the cathode through the external circuit, thereby reacting with oxygen to generate water. In this process, the flow of electrons through the external circuit generates an electric current, thereby providing power for the vehicle. Compared with traditional internal combustion engines, the vehicle-mounted hydrogen energy fuel cell does not produce carbon dioxide or other harmful gases, only water, so it has little impact on the environment. Compared with storage batteries, the time to fill hydrogen fuel is much lower than the charging time of storage batteries, thereby reducing the waiting time of users and improving the convenience of use. In addition, the hydrogen energy fuel cell has high energy conversion efficiency, can work at low temperature, and has fast start-up speed, etc., so it is very suitable for loading on vehicles. Therefore, with the continuous progress of technology and the gradual improvement of hydrogen fuel infrastructure, hydrogen energy fuel cells are expected to play an increasingly important role in the future automotive market.

[0003] The vehicle-mounted hydrogen energy fuel cell is mainly composed of a proton exchange membrane through which hydrogen ions pass, a hydrogen gas catalytic membrane for catalyzing hydrogen gas to oxidize into hydrogen ions and electrons, an oxygen gas catalytic membrane for catalyzing hydrogen and oxygen to chemically react, and a bipolar plate arranged outside the oxygen gas catalytic membrane and the hydrogen gas catalytic membrane. Hydrogen gas conveying channels and oxygen gas conveying channels are respectively arranged on two sides of the bipolar plate, so as to convey hydrogen gas and oxygen gas respectively, thereby maintaining the continuous generation of electric energy. The cathode and the anode of the vehicle-mounted hydrogen energy fuel cell are respectively located on two sides of the bipolar plate, so that the distance between the cathode and the anode of the vehicle-mounted hydrogen energy fuel cell is only determined by the thickness of the bipolar plate. In order to reduce the space occupied by the hydrogen energy fuel cell in the vehicle, the thickness of the bipolar plate needs to be thinned as much as possible. Therefore, the optimization of the design also brings problems, that is, the distance between the cathode and the anode of the vehicle-mounted hydrogen energy fuel cell is too close, thereby causing the vehicle-mounted hydrogen energy fuel cell to be prone to short circuit. Moreover, after the bipolar plate conveys oxygen gas and hydrogen gas for a long time, the bipolar plate may be damaged due to wear, so that the originally independent hydrogen gas conveying channels and oxygen gas conveying channels are connected, thereby causing the conveyed hydrogen gas and oxygen gas to mix together, and further increasing the safety risk. In addition, in order to slow down the conveying speed of hydrogen gas on the bipolar plate, the width of the channels on two sides of the bipolar plate is gradually increased. Although this way can slow down the conveying speed of hydrogen gas, the width of the bipolar plate needs to be gradually increased, thereby causing the bipolar plate and the proton exchange membrane to present a conical structure, and thereby being inconvenient to assemble the vehicle-mounted hydrogen energy fuel cell into the vehicle body. In addition, in order to facilitate the start of the control system of the vehicle, a storage battery is usually installed on the vehicle. When the vehicle-mounted hydrogen energy fuel cell does not generate electric energy, the storage battery controls the control valve installed on the hydrogen tank to be opened, and controls the fan to operate, thereby providing oxygen gas and hydrogen gas for the fuel cell. However, after the vehicle is parked for a long time, the storage battery may be discharged due to natural discharge, thereby causing the storage battery to be difficult to drive the control system to start. In this case, the user may need to start the vehicle by means of an external power source, which not only brings inconvenience to the user, but also affects the driving experience of the user.

[0004] In view of the above problems, the vehicle-mounted hydrogen energy fuel cell and the control system of the vehicle all have room for improvement, so as to generate electric energy by the vehicle-mounted hydrogen energy fuel cell, improve the safety of oxygen gas and hydrogen gas conveying, facilitate the assembly of the vehicle-mounted hydrogen energy fuel cell, and facilitate the start of the vehicle by the user. These improvements not only can improve the performance and reliability of the fuel cell, but also can improve the use experience of the user, thereby standing out in the fierce market competition and winning more market share. SUMMARY

[0005] In view of the shortcomings of the prior art, the present application provides a vehicle-mounted hydrogen energy fuel cell, a control system and a control method, which have the advantages of simple structure, improved safety of oxygen gas and hydrogen gas conveying, facilitated assembly of the vehicle-mounted hydrogen energy fuel cell, and facilitated start of the vehicle by the user, and are used to overcome the defects in the prior art The technical scheme adopted by the present application is as follows: a vehicle-mounted hydrogen energy fuel cell comprises two end plates, and a cell unit bound between the two end plates, wherein the cell unit comprises a plurality of hydrogen delivery plates, an oxygen delivery plate arranged between adjacent hydrogen delivery plates, a proton exchange plate arranged between the oxygen delivery plate and the hydrogen delivery plate, a hydrogen catalytic film arranged between the hydrogen delivery plate and the proton exchange plate, and an oxygen catalytic film arranged between the oxygen delivery plate and the proton exchange plate; a labyrinth groove is formed on both sides of the oxygen delivery plate and the hydrogen delivery plate; an oxygen input groove and a hydrogen discharge groove are respectively formed on one side of the hydrogen delivery plate, the proton exchange plate and the oxygen delivery plate; a hydrogen input groove and an oxygen discharge groove are respectively formed on the other side of the hydrogen delivery plate, the proton exchange plate and the oxygen delivery plate; the labyrinth groove formed on the hydrogen delivery plate is in communication with the hydrogen input groove and the hydrogen discharge groove; and the labyrinth groove formed on the oxygen delivery plate is in communication with the oxygen input groove and the oxygen discharge groove; the labyrinth groove is composed of a plurality of stepped groove bodies, a plurality of flow blocking rods are arranged in the stepped groove bodies, and the flow blocking rods and the oxygen delivery plate or the hydrogen delivery plate are in an integral structure; the number of the flow blocking rods in the stepped groove body and the end groove diameter of the stepped groove body should satisfy the following formula: ; wherein, is the end groove diameter of the first stepped groove body, is the number of the flow blocking rods in the first stepped groove body, is the number of the flow blocking rods in the second stepped groove body, is the number of the flow blocking rods in the third stepped groove body, is the number of the turning corners of the fourth stepped groove body, and

[0006] is a proportional coefficient. Preferably, the oxygen delivery plate and the hydrogen delivery plate are both provided with two through grooves, the labyrinth groove formed on the oxygen delivery plate is in communication with the oxygen input groove and the oxygen discharge groove of the oxygen delivery plate through the two through grooves of the oxygen delivery plate, the labyrinth groove formed on the hydrogen delivery plate is in communication with the hydrogen input groove and the hydrogen discharge groove of the hydrogen delivery plate through the two through grooves of the hydrogen delivery plate, a plurality of first sealing rings are arranged on the oxygen delivery plate and the hydrogen delivery plate, the first sealing rings are respectively sleeved on the oxygen input groove, the oxygen discharge groove, the hydrogen input groove and the hydrogen discharge groove, one side of the first sealing ring is mounted on the hydrogen delivery plate or the oxygen delivery plate, and the other side of the first sealing ring is tightly attached to the proton exchange plate.

[0007] Preferably, the oxygen delivery plate and the hydrogen delivery plate are provided with sealing frames on both sides, the labyrinth groove is located in the sealing frame, the oxygen catalytic membrane or the hydrogen catalytic membrane is interference fitted in the sealing frame, one side of the sealing frame is mounted on the oxygen delivery plate or the hydrogen delivery plate, and the other side of the sealing frame is in contact with the proton exchange plate or the end plate.

[0008] Preferably, the oxygen delivery plate and the hydrogen delivery plate are provided with sealing frames on both sides, the labyrinth groove is located in the sealing frame, the oxygen catalytic membrane or the hydrogen catalytic membrane is interference fitted in the sealing frame, one side of the sealing frame is mounted on the oxygen delivery plate or the hydrogen delivery plate, and the other side of the sealing frame is in contact with the proton exchange plate or the end plate.

[0009] Preferably, one side of one of the end plates is inlaid with an oxygen input pipe, a circulation input pipe and a hydrogen discharge pipe in sequence, the other side of the end plate is inlaid with a hydrogen input pipe, a circulation discharge pipe and an oxygen discharge pipe in sequence, the oxygen input pipe is connected with the oxygen input groove, the circulation input pipe is connected with the circulation input groove, the hydrogen discharge pipe is connected with the hydrogen discharge groove, the hydrogen input pipe is connected with the hydrogen input groove, the circulation discharge pipe is connected with the circulation discharge groove, the oxygen discharge pipe is connected with the oxygen discharge groove, the other end plate is provided with a circulation connection pipe, the circulation connection pipe is inlaid on both sides of the other end plate, and both ends of the circulation connection pipe are connected with the circulation input groove and the circulation discharge groove; the oxygen discharge pipe is provided with a first one-way valve at an end away from the end plate, an input end of the first one-way valve is mounted on the oxygen discharge pipe, and a liquid seal pipe with a U-shaped structure is arranged on a side of the first one-way valve away from the end plate, and one end of the liquid seal pipe is mounted on an output end of the first one-way valve.

[0010] Preferably, the end plate is provided with two current collecting plates made of conductive material, the two current collecting plates are arranged on both sides of the end plate, one of the current collecting plates is connected with the hydrogen delivery plate, and the other current collecting plate is connected with the oxygen delivery plate; the proton exchange plate is made of insulating material, a storage groove is arranged in the middle of the proton, and a proton exchange membrane is inlaid in the storage groove, and both sides of the proton exchange membrane are tightly attached to the hydrogen catalytic membrane and the oxygen catalytic membrane.

[0011] A control system of an assembled vehicle hydrogen energy fuel cell according to the above, comprising the vehicle hydrogen energy fuel cell, a normally closed push button switch SB1 arranged on one side of the vehicle hydrogen energy fuel cell, a normally open push button switch SB2 arranged on one side of the normally closed push button switch SB1, a normally open switch KM1-1 of a first relay connected in parallel on the normally open push button switch SB2, a coil KM1-2 of the first relay arranged on one side of the normally open push button switch SB2 respectively, a fan M and a capacitor C, the capacitor C connected in parallel on both ends of the fan M respectively, one end of the coil KM1-2 of the first relay electrically connected with a hydrogen delivery plate of the vehicle hydrogen energy fuel cell, the other end of the coil KM1-2 of the first relay electrically connected through the normally open switch KM1-1 of the first relay or one end of the normally open push button switch SB2 and the normally closed push button switch SB1, the other end of the normally closed push button switch SB1 electrically connected with an oxygen delivery plate of the vehicle hydrogen energy fuel cell; one end of the fan M electrically connected with one end of a coil KM2-2 of a second relay, one end of the fan M arranged with an adjustable resistor R and the coil KM2-2 of the second relay in sequence, the other end of the fan M electrically connected with one end of the coil KM1-2 of the first relay through the adjustable resistor R and the coil KM2-2 of the second relay, one side of the coil KM2-2 of the second relay arranged with a normally open switch KM2-1 of the second relay, one end of the normally open switch KM2-1 of the second relay connected with a hydrogen recovery pump W1, a circulating drive pump W2 and a solenoid valve YV respectively, one end of the normally open switch KM2-1 of the second relay electrically connected through the hydrogen recovery pump W1, the circulating drive pump W2 or the solenoid valve YV and one end of the normally open switch KM1-1 of the first relay, the other end of the normally open switch KM2-1 of the second relay electrically connected with the other end of the normally open switch KM2-1 of the second relay.

[0012] Preferably, one side of the vehicle hydrogen energy fuel cell is arranged with an air filter, a water tank and a hydrogen tank respectively, the solenoid valve YV and the hydrogen recovery pump W1 are located on both sides of the hydrogen tank respectively, one side of the solenoid valve YV is arranged with a push button valve, one side of the hydrogen tank is connected with a hydrogen input pipe through the push button valve or the solenoid valve YV, the other side of the hydrogen tank is connected with a hydrogen exhaust pipe through the hydrogen recovery pump W1; one side of the water tank is arranged with a heat exchanger, the top end of the water tank is connected with a circulating exhaust pipe through the heat exchanger, the circulating drive pump W2 is located on one side of the water tank, the bottom end of the water tank is connected with a circulating input pipe through the circulating drive pump W2; the fan M is located between the air filter and the vehicle hydrogen energy fuel cell, the air filter is connected with an oxygen input pipe through the fan M.

[0013] Preferably, a second one-way valve is arranged between the fan M and the oxygen input pipe, between the hydrogen recovery pump W1 and the hydrogen tank, and between the circulating drive pump W2 and the water tank, respectively, with the input end of the second one-way valve being mounted on the fan M, the hydrogen recovery pump W1 or the circulating drive pump W2, the fan M being connected to the oxygen input pipe through the second one-way valve, the hydrogen recovery pump W1 being connected to the hydrogen tank through the second one-way valve, and the circulating drive pump W2 being connected to the water tank through the second one-way valve.

[0014] The control method of the operating system of the vehicle-mounted hydrogen energy fuel cell comprises the following steps: S1. Starting the vehicle-mounted hydrogen energy fuel cell to provide power support for the vehicle; by pressing the button valve and the normally open button switch, the hydrogen in the hydrogen tank flows to the hydrogen input pipe, so that the hydrogen enters the labyrinth groove of the hydrogen delivery plate through the hydrogen input pipe and the hydrogen input groove, and the hydrogen delivered on the hydrogen delivery plate is catalyzed by the hydrogen catalytic membrane, so that the hydrogen releases electrons to generate hydrogen ions, the hydrogen ions move to the oxygen catalytic membrane through the proton exchange plate, and the oxygen in the oxygen delivery plate is catalyzed by the oxygen catalytic membrane, so that the hydrogen ions combine with the oxygen to generate electric energy, which is used to power the fan M and the capacitor C, so that the fan M starts to operate and charges the capacitor C, so that air enters the labyrinth groove of the oxygen delivery plate from the air filter, thereby improving the efficiency of the vehicle-mounted hydrogen energy fuel cell; S2. As the efficiency of the vehicle-mounted hydrogen energy fuel cell gradually increases, the coil of the first relay attracts the normally open switch of the first relay to close, and the coil of the second relay attracts the normally open switch of the second relay to close, thereby controlling the operation of the hydrogen recovery pump and the circulating drive pump, and controlling the electromagnetic valve to open. After releasing the pressing of the button valve and the normally open button switch, the control system is still in the running state to use the vehicle-mounted hydrogen energy fuel cell to provide electric energy for the vehicle body; S3. Turn off the control system of the vehicle; by pressing the normally closed button switch, the power supply of the vehicle-mounted hydrogen energy fuel cell is disconnected, so that the coil of the first relay and the coil of the second relay lose power and cannot attract the normally open switch of the first relay and the normally open switch of the second relay, so that the normally open switch of the first relay and the normally open switch of the second relay are in the open state, so as to stop the hydrogen recovery pump and the circulating drive pump, and control the electromagnetic valve to close, thereby closing the delivery of the hydrogen tank. Since the capacitor stores electric energy, the capacitor can drive the fan to slowly stop operating, thereby continuously delivering air to the labyrinth groove of the oxygen delivery plate to increase the oxygen content of the labyrinth groove of the oxygen delivery plate, and preparing the control system for the next start of the vehicle-mounted hydrogen energy fuel cell.

[0015] The present application has the beneficial effects that: first, the present application replaces the bipolar plate by setting the hydrogen delivery plate and the oxygen delivery plate, and by taking the hydrogen delivery plate and the oxygen delivery plate as the positive and negative poles of the power supply circuit respectively, the hydrogen catalytic membrane, the proton exchange plate and the oxygen catalytic membrane are arranged between the positive and negative poles of the power supply circuit, so as to increase the distance between the positive and negative poles of the power supply circuit, thereby reducing the short circuit phenomenon of the power supply circuit and improving the safety of the vehicle-mounted hydrogen energy fuel cell; at the same time, the labyrinth grooves opened on both sides of the hydrogen delivery plate or the oxygen delivery plate are connected due to wear, and the mixing of hydrogen and oxygen does not occur, which greatly improves the safety in use. Moreover, the flow of gas is hindered by the flow barrier rod, thereby reducing the flow rate of the gas, so as to improve the reaction efficiency of hydrogen and oxygen.

[0016] Secondly, the oxygen delivery plate, the hydrogen delivery plate and the proton exchange plate are arranged and stacked together, so that the oxygen input channel, the oxygen exhaust channel, the hydrogen input channel and the hydrogen exhaust channel are formed between the oxygen delivery plate, the hydrogen delivery plate and the proton exchange plate, and the first sealing ring is tightly attached to the proton exchange plate or the end plate, so as to seal the oxygen input channel, the oxygen exhaust channel, the hydrogen input channel and the hydrogen exhaust channel, thereby avoiding the occurrence of gas leakage, and the two through grooves opened on the oxygen delivery plate and the hydrogen delivery plate are used to facilitate the control of the input and output of the gas, so as to facilitate the chemical reaction of oxygen and hydrogen, thereby generating electric energy to meet the power supply needs. Moreover, the sealing frame is used to fix the oxygen catalytic membrane or the hydrogen catalytic membrane, and to create a closed environment for the chemical reaction of oxygen and hydrogen, so as to facilitate the chemical reaction of oxygen and hydrogen.

[0017] Thirdly, the oxygen delivery plate, the hydrogen delivery plate and the proton exchange plate arranged and stacked together form the circulation input channel and the circulation exhaust channel between them through the circulation input groove, the circulation exhaust groove and the second sealing ring, and the second sealing ring is used to seal the circulation input channel and the circulation exhaust channel to avoid leakage, and the cooling liquid is supplied to the circulation input channel and the circulation exhaust channel to cool the hydrogen delivery plate, the oxygen delivery plate and the proton exchange plate, thereby controlling the temperature of the vehicle-mounted hydrogen energy fuel cell. Moreover, the oxygen input pipe, the circulation input pipe, the hydrogen exhaust pipe, the hydrogen input pipe, the circulation exhaust pipe and the oxygen exhaust pipe are used to facilitate the transportation of hydrogen, oxygen and circulating fluid, the liquid seal pipe is used to make the water and the remaining oxygen flow into the liquid seal, so as to form a liquid seal in the liquid seal pipe, avoid the dust and other impurities in the air entering the vehicle-mounted hydrogen energy fuel cell through the oxygen exhaust pipe, and the two current collecting plates are used to concentrate the electric energy generated by the hydrogen delivery plates and the oxygen delivery plates in the vehicle-mounted hydrogen energy fuel cell, thereby meeting the power supply needs.

[0018] In addition, the button valve and the normally open button switch SB2 are arranged to replace the storage battery of the vehicle, so that the hydrogen energy fuel cell of the vehicle can be started and powered after long-term parking. The capacitor C is arranged to drive the fan M to slowly stop running after the control system is disconnected, so as to reduce the waste gas in the labyrinth groove, the oxygen input groove and the oxygen exhaust groove of the oxygen delivery plate after chemical reaction, improve the oxygen content of the labyrinth groove, the oxygen input groove and the oxygen exhaust groove of the oxygen delivery plate, and prepare oxygen for starting the vehicle again. The first relay and the second relay are arranged to divide the control system into two-stage starting system, wherein the fan M and the capacitor C are used as the first-stage starting system, and the hydrogen recovery pump W1, the circulating drive pump W2 and the electromagnetic valve YV are used as the second-stage starting system, so as to meet the starting needs of the hydrogen energy fuel cell. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a first perspective view of the hydrogen energy fuel cell of the vehicle in the application.

[0020] Figure 2 It is a second perspective view of the hydrogen energy fuel cell of the vehicle in the application.

[0021] Figure 3 It is an assembly explosion view of the hydrogen delivery plate, the hydrogen catalytic membrane, the proton exchange plate, the oxygen catalytic membrane and the oxygen delivery plate in the application.

[0022] Figure 4 It is a structural view of the oxygen delivery plate in the application.

[0023] Figure 5 It is Figure 4 It is an enlarged view of A in the application.

[0024] Figure 6 It is a circuit control system diagram of the control system of the hydrogen energy fuel cell of the vehicle in the application.

[0025] Figure 7 It is a supply control system diagram of the control system of the hydrogen energy fuel cell of the vehicle in the application. DETAILED DESCRIPTION

[0026] As Figures 1 to 5As shown, a vehicle-mounted hydrogen energy fuel cell comprises two end plates 1, cell units bound between the two end plates 1, the cell units comprising a plurality of hydrogen delivery plates 2, oxygen delivery plates 3 arranged between adjacent hydrogen delivery plates 2, proton exchange plates 4 arranged between the oxygen delivery plates 3 and the hydrogen delivery plates 2, hydrogen catalytic membranes 5 arranged between the hydrogen delivery plates 2 and the proton exchange plates 4, and oxygen catalytic membranes 6 arranged between the oxygen delivery plates 3 and the proton exchange plates 4, the oxygen delivery plates 3 and the hydrogen delivery plates 2 each having a labyrinth groove 7 opened on both sides, the hydrogen delivery plates 2, the proton exchange plates 4, and the oxygen delivery plates 3 each having an oxygen input groove 8 and a hydrogen discharge groove 9 opened on one side, and the hydrogen delivery plates 2, the proton exchange plates 4, and the oxygen delivery plates 3 each having a hydrogen input groove 10 and an oxygen discharge groove 11 opened on the other side, the labyrinth groove 7 opened on the hydrogen delivery plate 2 being in communication with the hydrogen input groove 10 and the hydrogen discharge groove 9, and the labyrinth groove 7 opened on the oxygen delivery plate 3 being in communication with the oxygen input groove 8 and the oxygen discharge groove 11. The hydrogen catalytic membranes 5 catalyze the hydrogen delivered on the hydrogen delivery plates 2, so that the hydrogen releases electrons to generate hydrogen ions. These electrons flow through an external circuit to generate current, thereby forming a power supply. The hydrogen ions move through the proton exchange plates 4 to the oxygen catalytic membranes 6, which catalyze the oxygen existing in the oxygen delivery plates 3, so that the hydrogen ions combine with the oxygen and react with the electrons flowing back from the external circuit to generate water. The chemical equation is as follows: The hydrogen delivery plates 2 and the oxygen delivery plates 3 are used as the positive electrode and the negative electrode of the power supply circuit, respectively, to meet the power supply needs. Compared with the oxygen and hydrogen delivery channels respectively created on both sides of the bipolar plate, the hydrogen delivery plates 2 and the oxygen delivery plates 3 are only used as the positive electrode or the negative electrode, thereby reducing the short circuit phenomenon of the power supply circuit and improving the safety of the vehicle-mounted hydrogen energy fuel cell. In addition, even if the labyrinth grooves 7 opened on both sides of the hydrogen delivery plates 2 or the oxygen delivery plates 3 are connected due to wear, the mixing of hydrogen and oxygen will not occur, greatly improving the safety in use. The labyrinth groove 7 is composed of a plurality of stepped groove bodies, a plurality of flow baffles 12 are arranged in the stepped groove bodies, and the flow baffles 12 and the oxygen delivery plates 3 or the hydrogen delivery plates 2 are an integral structure. The number of the flow baffles 12 in the stepped groove body and the end groove diameter of the stepped groove body should satisfy the following formula: ; wherein, is the end groove diameter of the first level stepped groove body, is the number of the flow baffles 12 in the first level stepped groove body, is the number of the flow baffles 12 in the second level stepped groove body, is the number of the flow baffles 12 in the third level stepped groove body, and is a proportionality coefficient.

[0027] By controlling the number of flow baffle rods 12, the fluid resistance formed by the plurality of stepped grooves is kept consistent, so that the fluid can be uniformly delivered into the plurality of stepped grooves; when the gas passes through the flow baffle rods 12, the delivery direction of the gas changes, which causes the gas to generate centrifugal force and friction, and these forces hinder the flow of the gas, thereby forming resistance. Therefore, the more the number of flow baffle rods 12, the greater the resistance that the gas receives. According to the principle of fluid mechanics, the wider the channel width of fluid delivery, the smaller the resistance that the fluid receives. Therefore, in order to ensure that the resistance of the plurality of stepped grooves to fluid delivery remains consistent, so that the fluid can be uniformly delivered into the plurality of stepped grooves, the end groove diameter of the stepped groove and the number of flow baffle rods in the stepped groove are in a proportional relationship, wherein the proportional coefficient The length, width of the flow baffle rod 12, and the density, speed of the fluid are related.

[0028] In the embodiment, the oxygen delivery plate 3 and the hydrogen delivery plate 2 are both provided with two through grooves 13, the labyrinth groove 7 on the oxygen delivery plate 3 is connected with the oxygen input groove 8 and the oxygen exhaust groove 11 on the oxygen delivery plate 3 through the two through grooves 13 on the oxygen delivery plate 3, the labyrinth groove 7 on the hydrogen delivery plate 2 is connected with the hydrogen input groove 10 and the hydrogen exhaust groove 9 on the hydrogen delivery plate 2 through the two through grooves 13 on the hydrogen delivery plate 2, and a plurality of first sealing rings 14 are arranged on the oxygen delivery plate 3 and the hydrogen delivery plate 2, the first sealing rings 14 are respectively sleeved on the oxygen input groove 8, the oxygen exhaust groove 11, the hydrogen input groove 10 and the hydrogen exhaust groove 9, one side of the first sealing ring 14 is mounted on the hydrogen delivery plate 2 or the oxygen delivery plate 3, and the other side of the first sealing ring 14 is tightly attached to the proton exchange plate 4, so that the oxygen input channel, the oxygen exhaust channel, the hydrogen input channel and the hydrogen exhaust channel are respectively formed between the oxygen delivery plate 3, the hydrogen delivery plate 2 and the proton exchange plate 4 arranged and stacked together, and the oxygen input channel, the oxygen exhaust channel, the hydrogen input channel and the hydrogen exhaust channel are sealed by the first sealing ring 14 to avoid gas leakage. Moreover, the oxygen input channel and the oxygen exhaust channel are communicated with the labyrinth groove 7 on the oxygen delivery plate 3 through the two through grooves 13 on the oxygen delivery plate 3, and the hydrogen input channel and the hydrogen exhaust channel are communicated with the labyrinth groove 7 on the hydrogen delivery plate 2 through the two through grooves 13 on the hydrogen delivery plate 2, so that the hydrogen is conveniently delivered into the labyrinth groove 7 on the hydrogen delivery plate 2, and the oxygen is delivered into the labyrinth groove 7 on the oxygen delivery plate 3, to facilitate the control of the chemical reaction of the oxygen and the hydrogen, so as to generate electric energy to meet the power supply needs.

[0029] Please refer to Figures 3 to 5The oxygen delivery plate 3 and the hydrogen delivery plate 2 are provided with sealing frames 15 on both sides, the labyrinth groove 7 is located in the sealing frame 15, the oxygen catalytic membrane 6 or the hydrogen catalytic membrane 5 is interference fitted in the sealing frame 15, one side of the sealing frame 15 is mounted on the oxygen delivery plate 3 or the hydrogen delivery plate 2, and the other side of the sealing frame 15 is in contact with the proton exchange plate 4 or the end plate 1, so as to create a closed environment for the chemical reaction of oxygen and hydrogen, and facilitate the chemical reaction of oxygen and hydrogen.

[0030] In the embodiment, the oxygen delivery plate 3 and the hydrogen delivery plate 2 between the oxygen input groove 8 and the hydrogen discharge groove 9 are provided with circulation input grooves 16, the oxygen delivery plate 3 and the hydrogen delivery plate 2 between the hydrogen input groove 10 and the oxygen discharge groove 11 are provided with circulation discharge grooves 17, the two sides of the circulation discharge groove 17 and the circulation input groove 16 are respectively provided with second sealing rings 18, one side of the second sealing ring 18 is mounted on the oxygen delivery plate 3 or the hydrogen delivery plate 2, the proton exchange plate 4 between the oxygen input groove 8 and the hydrogen discharge groove 9 and the proton exchange plate 4 between the hydrogen input groove 10 and the oxygen discharge groove 11 are respectively provided with circulation fitting grooves 19, the other side of the second sealing ring 18 is located in the circulation fitting groove 19, the second sealing ring 18 mounted on the hydrogen delivery plate 2 is tightly attached to the second sealing ring 18 mounted on the oxygen delivery plate 3 or the end plate 1, circulation input channels and circulation discharge channels are respectively formed between the oxygen delivery plate 3, the hydrogen delivery plate 2 and the proton exchange plate 4 arranged and stacked together through the circulation input groove 16, the circulation discharge groove 17 and the second sealing ring 18, and the circulation input channels and the circulation discharge channels are sealed by using the second sealing ring 18 to avoid leakage; cooling liquid is delivered to the circulation input channels and the circulation discharge channels to cool the hydrogen delivery plate 2, the oxygen delivery plate 3 and the proton exchange plate 4, so as to control the temperature of the vehicle-mounted hydrogen energy fuel cell.

[0031] Please refer again to Figure 1 and 2, one side of the one end plate 1 is inlaid with an oxygen input pipe 20, a circulation input pipe 21 and a hydrogen discharge pipe 22 in sequence, the other side of the one end plate 1 is inlaid with a hydrogen input pipe 23, a circulation discharge pipe 24 and an oxygen discharge pipe 25 in sequence, the oxygen input pipe 20 is communicated with the oxygen input groove 8, the circulation input pipe 21 is communicated with the circulation input groove 16, the hydrogen discharge pipe 22 is communicated with the hydrogen discharge groove 9, the hydrogen input pipe 23 is communicated with the hydrogen input groove 10, the circulation discharge pipe 24 is communicated with the circulation discharge groove 17, the oxygen discharge pipe 25 is communicated with the oxygen discharge groove 11, the other end plate 1 is provided with a circulation connecting pipe 26, the circulation connecting pipe 26 is inlaid on the two sides of the other end plate 1 respectively, the two ends of the circulation connecting pipe 26 are communicated with the circulation input groove 16 and the circulation discharge groove 17 respectively; so as to facilitate the input and discharge of hydrogen, oxygen and cooling liquid; the end of the oxygen discharge pipe 25 away from the end plate 1 is provided with a first one-way valve 27, the input end of the first one-way valve 27 is installed on the oxygen discharge pipe 25, the side of the first one-way valve 27 away from the end plate 1 is provided with a U-shaped liquid seal pipe 28, one end of the liquid seal pipe 28 is installed on the output end of the first one-way valve 27, because the chemical reaction of hydrogen and oxygen will produce water, the water will be pushed into the oxygen discharge pipe 25 by the transported oxygen, and then the water and the remaining oxygen flow into the liquid seal pipe 28, so as to form a liquid seal in the liquid seal pipe 28 by means of the water, and avoid the dust and other impurities in the air from entering the vehicle-mounted hydrogen energy fuel cell through the oxygen discharge pipe 25.

[0032] In the embodiment, the end plate 1 is provided with two current collecting plates 29 made of conductive material, the two current collecting plates 29 are arranged on the two sides of the end plate 1 respectively, one of the current collecting plates 29 is connected with the hydrogen delivery plate 2, and the other current collecting plate 29 is connected with the oxygen delivery plate 3, so as to concentrate the electric energy generated by the hydrogen delivery plates 2 and the oxygen delivery plates 3 in the vehicle-mounted hydrogen energy fuel cell by using the two current collecting plates 29, to meet the needs of power supply; the proton exchange plate 4 is made of insulating material, so as to insulate the hydrogen delivery plate 2 and the oxygen delivery plate 3, to avoid the short circuit phenomenon between the hydrogen delivery plate 2 and the oxygen delivery plate 3, a storage groove is formed in the middle of the proton exchange plate 4, a proton exchange membrane 30 is inlaid in the storage groove, the two sides of the proton exchange membrane 30 are tightly attached to the hydrogen catalytic membrane and the oxygen catalytic membrane 6 respectively, and the proton exchange membrane 30 can only allow hydrogen ions to pass through, so as to limit the chemical reaction of oxygen and hydrogen to the side of the proton exchange membrane 30 close to the oxygen catalytic membrane 6.

[0033] As Figure 6 and 7The control system of the vehicle-mounted hydrogen energy fuel cell is shown, which comprises the vehicle-mounted hydrogen energy fuel cell, a normally closed push-button switch SB1 arranged on one side of the vehicle-mounted hydrogen energy fuel cell, a normally open push-button switch SB2 arranged on one side of the normally closed push-button switch SB1, a normally open switch KM1-1 of a first relay connected in parallel on the normally open push-button switch SB2, a coil KM1-2 of the first relay arranged on one side of the start switch SB2, a fan M and a capacitor C, the two ends of the capacitor C are connected in parallel on the two ends of the fan M, the vehicle-mounted hydrogen energy fuel cell can charge the capacitor C, so that after the normally closed push-button switch SB1 is disconnected, the capacitor C can drive the fan M to slow down and stop running, so as to reduce the waste gas in the labyrinth groove 7, the oxygen input groove 8 and the oxygen exhaust groove 11 of the oxygen delivery plate 3 after chemical reaction, improve the oxygen content of the labyrinth groove 7, the oxygen input groove 8 and the oxygen exhaust groove 11 of the oxygen delivery plate 3, one end of the coil KM1-2 of the first relay is electrically connected with the hydrogen delivery plate 2 of the vehicle-mounted hydrogen energy fuel cell, the other end of the coil KM1-2 of the first relay is electrically connected through the normally open switch KM1-1 of the first relay or one end of the normally open push-button switch SB2 and the normally closed push-button switch SB1, the other end of the normally closed push-button switch SB1 is electrically connected with the oxygen delivery plate 3 of the vehicle-mounted hydrogen energy fuel cell, so that after the coil KM1-2 of the first relay is powered on, the coil KM1-2 of the first relay can attract the normally open switch KM1-1 of the first relay to close, so that after the normally open push-button switch SB2 is released, the vehicle-mounted hydrogen energy fuel cell is still in the power supply state.One end of the fan M and one end of the coil KM2-2 of the second relay are electrically connected, one end of the fan M is sequentially provided with the adjustable resistor R and the coil KM2-2 of the second relay, the other end of the fan M is electrically connected with one end of the coil KM1-2 of the first relay through the adjustable resistor R and the coil KM2-2 of the second relay, the adjustable resistor R is used for adjusting the power supply of the fan M, so as to adjust the rotating speed of the fan M, thereby controlling the conveying speed of the air, one side of the coil KM2-2 of the second relay is provided with the normally open switch KM2-1 of the second relay, one end of the normally open switch KM2-1 of the second relay is respectively connected with the hydrogen recovery pump W1, the circulating driving pump W2 and the electromagnetic valve YV, one end of the normally open switch KM2-1 of the second relay is electrically connected with one end of the normally open switch KM1-1 of the first relay through the hydrogen recovery pump W1, the circulating driving pump W2 or the electromagnetic valve YV, the other end of the normally open switch KM2-1 of the second relay is electrically connected with the other end of the normally open switch KM2-1 of the second relay, the electromagnetic valve YV is used for controlling the opening or closing of the hydrogen conveying channel, the hydrogen recovery pump W1 is used for driving the residual hydrogen to be recovered, the circulating driving pump W1 is used for driving the fluid to be cooled, the coil KM2-2 of the second relay and the normally open switch KM2-1 of the second relay are used for controlling the secondary starting system, that is, when the current flowing through the coil KM2-2 of the second relay is small, the coil KM2-2 of the second relay is difficult to attract the normally open switch KM2-1 of the second relay to be closed, at this time, only the fan M is in working state, after the current flowing through the coil KM2-2 of the second relay meets the requirements, the coil KM2-2 of the second relay attracts the normally open switch KM2-1 of the second relay to be closed, thereby supplying power for the hydrogen recovery pump W1, the circulating driving pump W2 and the electromagnetic valve YV.

[0034] The control system of the vehicle-mounted hydrogen fuel cell is provided with an air filter 31, a water tank 32 and a hydrogen tank 33 on one side of the vehicle-mounted hydrogen fuel cell, an electromagnetic valve YV and a hydrogen recovery pump W1 are respectively arranged on two sides of the hydrogen tank 33, a button valve 34 is arranged on one side of the electromagnetic valve YV, one side of the hydrogen tank 33 is communicated with a hydrogen input pipe 23 through the button valve 34 or the electromagnetic valve YV, the other side of the hydrogen tank 33 is communicated with a hydrogen discharge pipe 22 through the hydrogen recovery pump W1, the hydrogen in the hydrogen tank 33 is transported to the hydrogen input pipe 23 when the button valve 34 or the electromagnetic valve YV is opened, and the residual hydrogen in the vehicle-mounted hydrogen fuel is recovered into the hydrogen tank 33 under the driving of the hydrogen recovery pump W1; one side of the water tank 32 is provided with a heat exchanger 35, the top end of the water tank 32 is communicated with a circulating discharge pipe 24 through the heat exchanger 35, a circulating driving pump W2 is arranged on one side of the water tank 32, and the bottom end of the water tank 32 is communicated with a circulating input pipe 21 through the circulating driving pump W2, so as to control the water in the water tank 32 to perform heat dissipation treatment on the vehicle-mounted hydrogen fuel cell; a fan M is arranged between the air filter 31 and the vehicle-mounted hydrogen fuel cell, and the air filter 31 is connected with an oxygen input pipe 20 through the fan M, so as to facilitate the transportation of oxygen to the oxygen input pipe 20.

[0035] Specifically, a second one-way valve 36 is arranged between the fan M and the oxygen input pipe 20, between the hydrogen recovery pump W1 and the hydrogen tank 33, and between the circulating driving pump W2 and the water tank 32, respectively, the input end of the second one-way valve 36 is arranged on the fan M, the hydrogen recovery pump W1 or the circulating driving pump W2, the fan M is communicated with the oxygen input pipe 20 through the second one-way valve 36, the hydrogen recovery pump W1 is communicated with the hydrogen tank 33 through the second one-way valve 36, and the circulating driving pump W2 is communicated with the water tank 32 through the second one-way valve 36, so as to prevent the occurrence of backflow.

[0036] According to the control method of the control system of the vehicle-mounted hydrogen energy fuel cell assembly, the method comprises the following steps: S1. Starting the vehicle-mounted hydrogen energy fuel cell to provide power support for the vehicle; by pressing the button valve 34 and the normally open button switch SB2, the hydrogen in the hydrogen tank 33 flows to the hydrogen input pipe 23, so that the hydrogen enters the labyrinth groove 7 in the hydrogen delivery plate 2 through the hydrogen input pipe 23 and the hydrogen input groove 10, and the hydrogen delivered on the hydrogen delivery plate 2 is catalyzed by the hydrogen catalytic membrane 5, so that the hydrogen releases electrons to generate hydrogen ions, the hydrogen ions move to the oxygen catalytic membrane 6 through the proton exchange plate 4, and the oxygen in the oxygen delivery plate 3 is catalyzed by the oxygen catalytic membrane 6, so that the hydrogen ions combine with the oxygen to generate electric energy, which powers the fan M and the capacitor C, so that the fan M starts to operate and charges the capacitor C, so that air enters the labyrinth groove 7 in the oxygen delivery plate 3 from the air filter 31, thereby improving the efficiency of the vehicle-mounted hydrogen energy fuel cell; S2. As the efficiency of the vehicle-mounted hydrogen energy fuel cell gradually improves, the coil KM1-2 of the first relay attracts the normally open switch KM1-1 of the first relay to close, and the coil KM2-2 of the second relay attracts the normally open switch KM2-1 of the second relay to close, thereby controlling the operation of the hydrogen recovery pump W1 and the circulating drive pump W2, and controlling the opening of the electromagnetic valve YV. Therefore, after releasing the pressing of the button valve 34 and the normally open button switch SB2, the control system is still in operation to use the vehicle-mounted hydrogen energy fuel cell to provide electric energy for the vehicle body; S3. Turn off the control system of the vehicle; by pressing the normally closed button switch SB1, disconnect the power supply of the vehicle-mounted hydrogen energy fuel cell, so that the coil KM1-2 of the first relay and the coil KM2-2 of the second relay lose power and cannot attract the normally open switch KM1-1 of the first relay and the normally open switch KM2-1 of the second relay, so that the normally open switch KM1-1 of the first relay and the normally open switch KM2-1 of the second relay are in the off state, to stop the hydrogen recovery pump W1 and the circulating drive pump W2, and control the electromagnetic valve YV to close, thereby closing the delivery of the hydrogen tank 33. Since the capacitor C stores electric energy, the capacitor C can drive the fan M to slowly stop operating, thereby continuously delivering air to the labyrinth groove 7 in the oxygen delivery plate 3 to increase the oxygen content of the labyrinth groove 7 in the oxygen delivery plate 3, and prepare the control system for the next start of the vehicle-mounted hydrogen energy fuel cell.

[0037] By the hydrogen delivery plate 2 and the oxygen delivery plate 3 set in this embodiment, the bipolar plate is replaced, and by taking the hydrogen delivery plate 2 and the oxygen delivery plate 3 as the positive pole and the negative pole of the power supply circuit respectively, the positive pole and the negative pole of the power supply circuit are separated by the hydrogen catalytic membrane 5, the proton exchange plate 4 and the oxygen catalytic membrane 6, so as to increase the distance between the positive pole and the negative pole of the power supply circuit, thereby reducing the short circuit phenomenon of the power supply circuit and improving the safety of the vehicle-mounted hydrogen energy fuel cell; at the same time, the labyrinth grooves 7 opened on both sides of the hydrogen delivery plate 2 or the oxygen delivery plate 3 are communicated due to abrasion, and the mixing of hydrogen and oxygen does not occur, so as to greatly improve the use safety. Moreover, by the flow blocking rod 12 set in this embodiment, the flow of the gas is hindered, so as to reduce the flow rate of the gas, thereby improving the electricity generation conversion rate of hydrogen and oxygen.

[0038] The above-mentioned embodiments are only the preferred embodiments of the present application, and are not intended to limit the implementation scope of the present application. Any equivalent changes or modifications made according to the structure, features and principles described in the patent scope of the present application shall be included in the patent scope of the present application.

Claims

1. A vehicular hydrogen energy fuel cell, comprising two end plates (1), cell units bound between the two end plates (1), characterized in that: The battery cell comprises a plurality of hydrogen delivery plates (2), oxygen delivery plates (3) arranged between adjacent hydrogen delivery plates (2), proton exchange plates (4) arranged between the oxygen delivery plates (3) and the hydrogen delivery plates (2), hydrogen catalytic membranes (5) arranged between the hydrogen delivery plates (2) and the proton exchange plates (4), and oxygen catalytic membranes (6) arranged between the oxygen delivery plates (3) and the proton exchange plates (4), the oxygen delivery plates (3) and the hydrogen delivery plates (2) are both provided with labyrinth grooves (7), one side of the hydrogen delivery plates (2), the proton exchange plates (4) and the oxygen delivery plates (3) are both provided with oxygen input grooves (8) and hydrogen discharge grooves (9), respectively, the other side of the hydrogen delivery plates (2), the proton exchange plates (4) and the oxygen delivery plates (3) are both provided with hydrogen input grooves (10) and oxygen discharge grooves (11), respectively, the labyrinth grooves (7) on the hydrogen delivery plates (2) are in communication with the hydrogen input grooves (10) and the hydrogen discharge grooves (9), and the labyrinth grooves (7) on the oxygen delivery plates (3) are in communication with the oxygen input grooves (8) and the oxygen discharge grooves (11). The labyrinth groove (7) is composed of several stepped groove bodies, and a plurality of flow baffles (12) are arranged in the stepped groove bodies respectively, the flow baffles (12) and the oxygen delivery plate (3) or the hydrogen delivery plate (2) are an integral structure, the number of the flow baffles (12) in the stepped groove body and the end groove diameter of the stepped groove body should satisfy the following formula: ; wherein, the number of the step groove of the first stage, the end groove diameter of the step groove of the first stage, the number of the step groove of the first stage, the number of the step groove of the first stage, the number of the step groove of the first stage, the number of the step groove of the first stage, the number of the step groove of the first stage, the number of the step groove of the first stage, is a proportional coefficient.

2. The on-board hydrogen fuel cell in accordance with claim 1, wherein: The oxygen delivery plates (3) and the hydrogen delivery plates (2) are both provided with two through grooves (13), the labyrinth grooves (7) on the oxygen delivery plates (3) are in communication with the oxygen input grooves (8) and the oxygen discharge grooves (11) of the oxygen delivery plates (3) through the two through grooves (13) of the oxygen delivery plates (3), respectively, the labyrinth grooves (7) on the hydrogen delivery plates (2) are in communication with the hydrogen input grooves (10) and the hydrogen discharge grooves (9) of the hydrogen delivery plates (2) through the two through grooves (13) of the hydrogen delivery plates (2), respectively, a plurality of first sealing rings (14) are arranged on the oxygen delivery plates (3) and the hydrogen delivery plates (2), the first sealing rings (14) are sleeved on the oxygen input grooves (8), the oxygen discharge grooves (11), the hydrogen input grooves (10) and the hydrogen discharge grooves (9), respectively, one side of the first sealing rings (14) is mounted on the hydrogen delivery plates (2) or the oxygen delivery plates (3), and the other side of the first sealing rings (14) is tightly attached to the proton exchange plates (4).

3. The on-board hydrogen fuel cell in accordance with claim 1, wherein: The oxygen delivery plates (3) and the hydrogen delivery plates (2) are both provided with sealing frames (15), the labyrinth grooves (7) are located in the sealing frames (15), the oxygen catalytic membranes (6) or the hydrogen catalytic membranes (5) are interference-fitted in the sealing frames (15), one side of the sealing frames (15) is mounted on the oxygen delivery plates (3) or the hydrogen delivery plates (2), and the other side of the sealing frames (15) is in contact with the proton exchange plates (4) or the end plates (1).

4. The on-board hydrogen fuel cell of claim 1, wherein: The oxygen delivery plate (3) between the oxygen input slot (8) and the hydrogen discharge slot (9) and the hydrogen delivery plate (2) are both provided with a circulating input slot (16), the oxygen delivery plate (3) between the hydrogen input slot (10) and the oxygen discharge slot (11) and the hydrogen delivery plate (2) are both provided with a circulating discharge slot (17), the two sides of the circulating discharge slot (17) and the circulating input slot (16) are both provided with a second sealing ring (18), one side of the second sealing ring (18) is mounted on the oxygen delivery plate (3) or the hydrogen delivery plate (2), the proton exchange plate (4) between the oxygen input slot (8) and the hydrogen discharge slot (9) and the proton exchange plate (4) between the hydrogen input slot (10) and the oxygen discharge slot (11) are both provided with a circulating sleeve slot (19), the other side of the second sealing ring (18) is located in the circulating sleeve slot (19), the second sealing ring (18) mounted on the hydrogen delivery plate (2) is tightly attached to the second sealing ring (18) mounted on the oxygen delivery plate (3) or the end plate (1).

5. The on-board hydrogen fuel cell of claim 4, wherein: One side of one of the end plates (1) is inlaid with an oxygen input pipe (20), a circulating input pipe (21) and a hydrogen discharge pipe (22) in sequence, the other side of one of the end plates (1) is inlaid with a hydrogen input pipe (23), a circulating discharge pipe (24) and an oxygen discharge pipe (25) in sequence, the oxygen input pipe (20) is connected with the oxygen input slot (8), the circulating input pipe (21) is connected with the circulating input slot (16), the hydrogen discharge pipe (22) is connected with the hydrogen discharge slot (9), the hydrogen input pipe (23) is connected with the hydrogen input slot (10), the circulating discharge pipe (24) is connected with the circulating discharge slot (17), the oxygen discharge pipe (25) is connected with the oxygen discharge slot (11), the other end plate (1) is provided with a circulating connection pipe (26), the two sides of the circulating connection pipe (26) are inlaid in the two sides of the other end plate (1), the two ends of the circulating connection pipe (26) are connected with the circulating input slot (16) and the circulating discharge slot (17), respectively; the oxygen discharge pipe (25) is provided with a first one-way valve (27) at the end away from the end plate (1), the input end of the first one-way valve (27) is mounted on the oxygen discharge pipe (25), the first one-way valve (27) is provided with a U-shaped liquid seal pipe (28) at the side away from the end plate (1), one end of the liquid seal pipe (28) is mounted on the output end of the first one-way valve (27).

6. The on-board hydrogen fuel cell of claim 1, wherein: The end plate (1) is provided with two current collecting plates (29) made of conductive material, the two current collecting plates (29) are arranged on the two sides of the end plate (1), one of the current collecting plates (29) is connected with the hydrogen delivery plate (2), the other current collecting plate (29) is connected with the oxygen delivery plate (3); the proton exchange plate (4) is made of insulating material, a storage slot is formed in the middle of the proton, a proton exchange membrane (30) is inlaid in the storage slot, the two sides of the proton exchange membrane (30) are tightly attached to the hydrogen catalytic membrane and the oxygen catalytic membrane (6).

7. A control system for a vehicular hydrogen energy fuel cell according to any one of claims 1-6, characterized by: The vehicle-mounted hydrogen energy fuel cell, a normally closed button switch (SB1) arranged on one side of the vehicle-mounted hydrogen energy fuel cell, a normally open button switch (SB2) arranged on one side of the normally closed button switch (SB1), a normally open switch (KM1-1) of a first relay connected in parallel on the normally open button switch (SB2), a coil (KM1-2) of the first relay, a fan (M) and a capacitor (C) arranged on one side of the normally open button switch (SB2) respectively, the capacitor (C) is connected in parallel at both ends of the fan (M) respectively, one end of the coil (KM1-2) of the first relay is electrically connected with a hydrogen delivery plate (2) of the vehicle-mounted hydrogen energy fuel cell, the other end of the coil (KM1-2) of the first relay is electrically connected through the normally open switch (KM1-1) of the first relay or one end of the normally open button switch (SB2) and the normally closed button switch (SB1), the other end of the normally closed button switch (SB1) is electrically connected with an oxygen delivery plate (3) of the vehicle-mounted hydrogen energy fuel cell; one end of the fan (M) is electrically connected with one end of a coil (KM2-2) of a second relay, one end of the fan (M) is sequentially provided with an adjustable resistor (R) and the coil (KM2-2) of the second relay, the other end of the fan (M) is electrically connected with one end of the coil (KM1-2) of the first relay through the adjustable resistor (R) and the coil (KM2-2) of the second relay, one side of the coil (KM2-2) of the second relay is provided with a normally open switch (KM2-1) of the second relay, one end of the normally open switch (KM2-1) of the second relay is respectively connected with a hydrogen recovery pump (W1), a circulating drive pump (W2) and a solenoid valve (YV), one end of the normally open switch (KM2-1) of the second relay is electrically connected through the hydrogen recovery pump (W1), the circulating drive pump (W2) or the solenoid valve (YV) and one end of the normally open switch (KM1-1) of the first relay, the other end of the normally open switch (KM2-1) of the second relay is electrically connected with the other end of the normally open switch (KM2-1) of the second relay.

8. The control system for a vehicular hydrogen energy fuel cell assembly of claim 7, wherein: The vehicle-mounted hydrogen energy fuel cell is provided with an air filter (31), a water tank (32) and a hydrogen tank (33) respectively on one side, an electromagnetic valve (YV) and a hydrogen recovery pump (W1) are respectively located on two sides of the hydrogen tank (33), a button valve (34) is arranged on one side of the electromagnetic valve (YV), one side of the hydrogen tank (33) is connected with a hydrogen input pipe (23) through the button valve (34) or the electromagnetic valve (YV), and the other side of the hydrogen tank (33) is connected with a hydrogen discharge pipe (22) through the hydrogen recovery pump (W1); one side of the water tank (32) is provided with a heat exchanger (35), and the top end of the water tank (32) is connected with a circulating discharge pipe (24) through the heat exchanger (35); a circulating drive pump (W2) is located on one side of the water tank (32), and the bottom end of the water tank (32) is connected with a circulating input pipe (21) through the circulating drive pump (W2); and the fan (M) is located between the air filter (31) and the vehicle-mounted hydrogen energy fuel cell, and the air filter (31) is connected with an oxygen input pipe (20) through the fan (M).

9. The control system for a vehicular hydrogen energy fuel cell assembly of claim 8, wherein: Second one-way valves (36) are arranged between the fan (M) and the oxygen input pipe (20), between the hydrogen recovery pump (W1) and the hydrogen tank (33) and between the circulating drive pump (W2) and the water tank (32), the input end of the second one-way valve (36) is arranged on the fan (M), the hydrogen recovery pump (W1) or the circulating drive pump (W2), the fan (M) is connected with the oxygen input pipe (20) through the second one-way valve (36), the hydrogen recovery pump (W1) is connected with the hydrogen tank (33) through the second one-way valve (36), and the circulating drive pump (W2) is connected with the water tank (32) through the second one-way valve (36).

10. A control method of a maneuvering system equipped with an on-board hydrogen energy fuel cell according to claim 8, characterized by, The method comprises the following steps: S1. The vehicle-mounted hydrogen energy fuel cell is started to provide power support for the vehicle; by pressing the button valve (34) and the normally open button switch (SB2), the hydrogen in the hydrogen tank (33) flows to the hydrogen input pipe (23), so that the hydrogen flows into the labyrinth groove (7) of the hydrogen delivery plate (2) through the hydrogen input pipe (23) and the hydrogen input groove (10), the hydrogen delivered on the hydrogen delivery plate (2) is catalyzed through the hydrogen catalytic film (5), the hydrogen releases electrons to generate hydrogen ions, the hydrogen ions move to the oxygen catalytic film (6) through the proton exchange plate (4), the oxygen in the oxygen delivery plate (3) is catalyzed through the oxygen catalytic film (6), the hydrogen ions combine with the oxygen to generate electric energy, the fan M and the capacitor C are powered, the fan M starts to operate, the capacitor C is charged, air enters the labyrinth groove (7) of the oxygen delivery plate (3) from the air filter (31), and the efficiency of the vehicle-mounted hydrogen energy fuel cell for generating electric energy is improved. S2. With the efficiency of the vehicle-mounted hydrogen energy fuel cell gradually improving, the coil (KM1-2) of the first relay attracts the normally open switch (KM1-1) of the first relay to close, the coil (KM2-2) of the second relay attracts the normally open switch (KM2-1) of the second relay to close, thereby controlling the hydrogen recovery pump (W1) and the circulating drive pump (W2) to operate, and controlling the electromagnetic valve (YV) to open. After this, the press on the button valve (34) and the normally open button switch (SB2) is released, and the control system is still in the running state to use the vehicle-mounted hydrogen energy fuel cell to provide power for the vehicle body. S3. Turn off the control system of the vehicle; by pressing the normally closed button switch (SB1), the power supply of the vehicle-mounted hydrogen energy fuel cell is turned off, so that the coil (KM1-2) of the first relay and the coil (KM2-2) of the second relay lose power and cannot attract the normally open switch (KM1-1) of the first relay and the normally open switch (KM2-1) of the second relay, so that the normally open switch (KM1-1) of the first relay and the normally open switch (KM2-1) of the second relay are in the off state, to stop the hydrogen recovery pump (W1) and the circulating drive pump (W2), and control the electromagnetic valve (YV) to close, thereby closing the delivery of the hydrogen tank (33). Since the capacitor (C) stores electrical energy, the capacitor (C) can drive the fan (M) to slowly stop running, thereby continuously delivering air to the labyrinth groove (7) opened in the oxygen delivery plate (3) to improve the oxygen content of the labyrinth groove (7) opened in the oxygen delivery plate (3), and prepare the control system for the next start of the vehicle-mounted hydrogen energy fuel cell.

Images