CN112440764B - Fuel cell system of passenger car - Google Patents

Fuel cell system of passenger car Download PDF

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Publication number
CN112440764B
CN112440764B CN202011495977.7A CN202011495977A CN112440764B CN 112440764 B CN112440764 B CN 112440764B CN 202011495977 A CN202011495977 A CN 202011495977A CN 112440764 B CN112440764 B CN 112440764B
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China
Prior art keywords
battery module
fixed
air
hydrogen
fuel cell
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CN202011495977.7A
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Chinese (zh)
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CN112440764A (en
Inventor
侯昌辉
吴洁
霍亮
王朝云
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Mingtian Hydrogen Energy Technology Co ltd
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Mingtian Hydrogen Energy Technology Co ltd
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/70—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by fuel cells
    • B60L50/71—Arrangement of fuel cells within vehicles specially adapted for electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/70—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by fuel cells
    • B60L50/72—Constructional details of fuel cells specially adapted for electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/30—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells
    • B60L58/32—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells for controlling the temperature of fuel cells, e.g. by controlling the electric load
    • B60L58/33—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells for controlling the temperature of fuel cells, e.g. by controlling the electric load by cooling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • H01M8/04014—Heat exchange using gaseous fluids; Heat exchange by combustion of reactants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • H01M8/04029—Heat exchange using liquids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
    • H01M8/04156—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04746—Pressure; Flow
    • H01M8/04753—Pressure; Flow of fuel cell reactants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04858—Electric variables
    • H01M8/04865—Voltage
    • H01M8/04873—Voltage of the individual fuel cell
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells

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  • Engineering & Computer Science (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Power Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Fuel Cell (AREA)

Abstract

The invention discloses a fuel cell system of a passenger car, and relates to the technical field of fuel cells of passenger cars; in order to solve the problem of low integration level; the novel solar battery module comprises a battery module body, an electric system, an air system, a cooling system, a hydrogen system and key system components, wherein an aluminum plate used for being connected with a vehicle body is fixedly arranged on the outer wall of the bottom of the battery module body through bolts, the key system components are arranged below the aluminum plate, and the electric system, the air system, the cooling system and the hydrogen system are all fixed on the battery module body through brackets and are arranged in a surrounding mode by taking the battery module body as a center. According to the invention, the components of the fuel cell system are arranged in a reasonable manner and in the front cabin of the passenger car, so that the arrangement of the whole system is highly concentrated under the condition of considering the reasonable arrangement of the circuits, the waterways and the gas paths, the components are easy to disassemble and maintain, and the heat dissipation, the overhaul convenience and the maintainability of the system are improved.

Description

Fuel cell system of passenger car
Technical Field
The invention relates to the technical field of fuel cells of passenger vehicles, in particular to a fuel cell system of a passenger vehicle.
Background
The development of fuel cell systems is one of the core content of fuel cell automobile development. One reason that the fuel cell system is intensively applied to large buses such as buses and logistics vehicles at present is that the layout space of the vehicles is large, the layout and the assembly of components of the fuel cell system are convenient, and the other reason is that the system integration level of each subsystem component of the fuel cell system is generally lower when the volume of each subsystem component of the fuel cell system is larger, the occupied space is larger, and the fuel cell system cannot be applied to vehicles with limited front cabin space such as passenger vehicles.
At present, fuel cell system arrangement of domestic fuel cell automobiles adopts a distributed mode, all parts are distributed at all parts of the whole automobile and are fixed through brackets, so that the fuel cell system arrangement is unreasonable in the aspects of improving the system integration level of the fuel cell and the miniaturization direction of the parts, and mainly has two aspects, firstly, the system arrangement span is large, the flow resistance of an air channel, a hydrogen channel and a cooling channel can be increased, and meanwhile, the heat dissipation of the system is not facilitated; second, the detection and maintainability of the system are not facilitated.
In summary, the current arrangement of fuel cell systems is not conducive to the advancement of fuel cell vehicle industrialization, and a high integration of fuel cell system arrangements is required
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a fuel cell system for a passenger car.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The utility model provides a passenger car fuel cell system, includes battery module, electrical system, air system, cooling system, hydrogen system and system key spare part, battery module bottom outer wall is fixed with the aluminum plate that is used for being connected with the automobile body through the bolt, system key spare part sets up in aluminum plate's below, electrical system, air system, cooling system, hydrogen system are all fixed in on the battery module through the support, and use battery module to encircle formula as the center.
Preferably: the battery module is a fuel battery module, and is an aluminum shell which wraps the fuel battery module, and the aluminum shell is provided with a plurality of interfaces for butting with an air system, a hydrogen system, a cooling system and key parts of the system.
Further: the electrical system comprises a DCDC, an FCCU, a sensor module and a high-low voltage wire harness; the DCDC and the FCCU are located at the top of the battery module, and are directly connected with the upper cover of the battery module through the support, the sensor module is arranged in an air system, a cooling system and a hydrogen system, and the high-low voltage wire Shu Bu is arranged on the outer wall of the battery module.
Based on the scheme: the air system comprises an air filter, an air flow meter, an air compressor, an intercooler, a humidifier, a bypass valve, a back pressure valve and a mixer, wherein the air filter is positioned at the right uppermost layer of the battery module and is fixed on an upper cover of the battery module through a bracket, the air flow meter is positioned at the rear middle layer of the battery module and is fixed on a shell of the battery module through the bracket, the air compressor is positioned at the rear lower layer of the battery module and is fixed on a lower bearing part of the aluminum plate through the bracket, the intercooler is positioned at the front lower layer of the battery module and is directly fixed on the lower bearing part of the aluminum plate, and the humidifier is positioned at the front lower layer of the battery module and is fixed on the lower bearing part of the aluminum plate through the bracket; the bypass valve is positioned at the lower layer of the rear side of the battery module and is fixed on the lower bearing part of the aluminum plate through a bracket; the back pressure valve and the mixer are mutually fixed through bolts, are positioned at the rear side of the battery module and are fixed on the passenger car body through a bracket.
Among the foregoing, the preferred one is: the cooling system comprises a cooling system and a cooling system, wherein the cooling system comprises a water pump, a deionization and filter two-in-one electronic three-way valve and a conductivity meter, the water pump is positioned at the front side of the battery module and is directly fixed on the lower bearing part of the aluminum plate, and the deionization and filter electronic three-way valve is positioned at the lower layer at the front side of the battery module and is fixed on the humidifier; the conductivity meter is positioned right below the water pump and is fixed on the air compressor.
As a further scheme of the invention: in the cooling system, a cooling liquid special for the fuel cell is adopted.
Meanwhile, the hydrogen system comprises a hydrogen inlet electromagnetic valve, an anode pressure regulator, a gas-water separator, a circulating pump, a pressure relief valve, a hydrogen discharge electromagnetic valve and a water discharge electromagnetic valve, wherein the hydrogen inlet electromagnetic valve is positioned at the rear side of the battery module and is fixed on a passenger car body through a bracket; the anode pressure regulator and the gas-water separator are both positioned at the middle layer of the rear side of the battery module and are fixed on the side wall of the aluminum plate through a bracket; the circulating pump is positioned at the middle layer of the rear side of the battery module and is fixed on the shell of the battery module through a transition plate; the pressure release valve is positioned at the left side of the battery module and is fixed on the shell of the battery module through a bracket; the hydrogen discharging electromagnetic valve and the water discharging electromagnetic valve are respectively fixed on a hydrogen discharging pipe and a water discharging pipe of the gas-water separator through bolts.
The beneficial effects of the invention are as follows:
1. according to the passenger car fuel cell system, all parts of the fuel cell system are arranged in a reasonable mode and in the front cabin of a passenger car, and under the condition of considering reasonable arrangement of all circuits, waterways and gas paths, the arrangement of the whole system is highly concentrated, all parts are easy to detach and maintain, and the heat dissipation, overhaul convenience and maintainability of the system are improved well.
Drawings
Fig. 1 is a schematic diagram of a first isometric structure of a front side of a fuel cell system for a passenger car according to the present invention;
fig. 2 is a schematic view of a first isometric rear side of a fuel cell system for a passenger car according to the present invention;
fig. 3 is a schematic diagram of a rear second isometric structure of a fuel cell system for a passenger car according to the present invention.
In the figure: 1-battery module, 2-aluminum plate, 3-DCDC, 4-FCCU, 5-air filter, 6-air flowmeter, 7-air compressor, 8-intercooler, 9-humidifier, 10-bypass valve, 11-back pressure valve, 12-mixer, 13-water pump, 14-deionized and filter, 15-electronic three-way valve, 16-conductivity meter, 17-hydrogen inlet solenoid valve, 18-anode pressure regulator, 19-gas-water separator, 20-circulating pump, 21-pressure release valve, 22-hydrogen discharge solenoid valve, 23-drainage solenoid valve.
Detailed Description
The technical scheme of the patent is further described in detail below with reference to the specific embodiments.
Embodiments of the present patent are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the patent and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be configured and operated in a particular orientation, and are therefore not to be construed as limiting the patent.
In the description of this patent, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the terms in this patent will be understood by those of ordinary skill in the art as the case may be.
The utility model provides a passenger car fuel cell system, as shown in fig. 1-3, includes battery module 1, electrical system, air system, cooling system, hydrogen system and system key spare part, battery module 1 bottom outer wall is fixed with the aluminum plate 2 that is used for being connected with the automobile body through the bolt, system key spare part sets up in the below of aluminum plate 2, electrical system, air system, cooling system, hydrogen system are all fixed in on the battery module 1 through the support, and use battery module 1 as center surrounding type arrangement.
As shown in fig. 1-3, the battery module 1 is a fuel cell module, and is an aluminum housing that encloses the fuel cell module, and the aluminum housing is provided with a plurality of interfaces for interfacing with an air system, a hydrogen system, a cooling system, and key components of the system.
As shown in fig. 1-3, the electrical system includes DCDC3, FCCU4, a sensor module, and a high-low voltage harness; the DCDC3 and the FCCU4 are positioned at the top of the battery module 1 and are directly connected with the upper cover of the battery module 1 through a bracket, the sensor module is arranged in an air system, a cooling system and a hydrogen system, the high-low voltage line Shu Bu is arranged on the outer wall of the battery module 1, and the DCDC3 has the function of adjusting the voltage output by the fuel cell to a voltage platform required by the whole vehicle and simultaneously ensuring the stability of the voltage output by the system to the outside; the FCCU4 is a controller of the whole fuel cell system, and monitors the fuel cell system and each part to ensure the stable and reliable operation of the system, and meanwhile, the whole vehicle controller performs data exchange to ensure the matching of the fuel cell system and the whole vehicle performance. And each sensor transmits the temperature, pressure and other data of each subsystem to the FCCU4 in real time, so that the FCCU4 processes the fed-back data and adjusts the running conditions of the whole system and parts in real time. The high-voltage wire harness transmits high-voltage power output by the pile module to the DCDC3 for boosting and stabilizing voltage, and the low-voltage wire harness transmits each control signal and V-voltage power to each part and the FCCU4 so as to ensure that the FCCU4 monitors each part in real time.
The air system comprises an air filter 5, an air flow meter 6, an air compressor 7, an intercooler 8, a humidifier 9, a bypass valve 10, a back pressure valve 11 and a mixer 12, wherein the air filter 5 is positioned at the right uppermost layer of the battery module 1 and is fixed on an upper cover of the battery module 1 through a bracket, the air flow meter 6 is positioned at the rear middle layer of the battery module 1 and is fixed on a shell of the battery module 1 through a bracket, the air compressor 7 is positioned at the rear lower layer of the battery module 1 and is fixed on a lower bearing part of the aluminum plate 2 through a bracket, the intercooler 8 is positioned at the front lower layer of the battery module 1 and is directly fixed on the lower bearing part of the aluminum plate 2, and the humidifier 9 is positioned at the front lower layer of the battery module 1 and is fixed on the lower bearing part of the aluminum plate 2 through a bracket; the bypass valve 10 is positioned at the lower layer of the rear side of the battery module 1 and is fixed on the lower bearing part of the aluminum plate 2 through a bracket; the back pressure valve 11 and the mixer 12 are fixed by bolts, and are positioned at the rear side of the battery module 1 and fixed on the passenger car body by a bracket, external air is filtered by the air filter 5, and is pressurized by the air flowmeter 6 through the air compressor 7 to provide pressure meeting the operation requirement of the electric pile, but the temperature can be rapidly increased after the air is compressed, so that the air is reduced to the temperature meeting the operation requirement by the intercooler 8, and then the air humidity is increased by the humidifier 9, so that the operation requirement of the electric pile is met in the aspects of pressure, temperature and humidity. As mentioned above, the air filter 5 is generally located in the front upper portion of the vehicle, facilitating replacement of the filter cartridge. Due to space restrictions, the air compressor 7 and the intercooler 8 are arranged as close as possible, and the humidifier 9 is arranged lower than the electric pile to prevent accumulated water at the outlet of the electric pile from flowing backwards to the electric pile. The back pressure valve 11 and the mixer 12 are integrated together, and are arranged at the position of a passage in the vehicle as a pile tail gas discharge port, and a rear connecting pipeline is directly discharged to the tail end of the vehicle. The bypass valve 10 serves as an intake bypass to exhaust excess air into the mixer 12 and then to the atmosphere.
The cooling system comprises a water pump 13, a deionization and filter 14 two-in-one, an electronic three-way valve 15 and a conductivity meter 16, wherein the water pump 13 is positioned at the front side of the battery module 1 and is directly fixed on the lower bearing part of the aluminum plate 2, and the deionization and filter 14 and the electronic three-way valve 15 are positioned at the lower layer of the front side of the battery module 1 and are fixed on the humidifier 9; the conductivity meter 16 is located under the water pump 13 and fixed on the air compressor 7, the water pump 13 provides power, the water enters the pile through the two-in-one of the deionization and the filter 14, and the water channel outlet of the pile controls the switching of the water channel size circulation through the electronic three-way valve 15 so as to ensure the heat dissipation requirement. The conductivity meter 16 detects the conductivity of the waterway to ensure the water quality requirement of the galvanic pile.
In the cooling system, a cooling liquid special for the fuel cell is adopted.
The hydrogen system comprises a hydrogen inlet electromagnetic valve, an anode pressure regulator 18, a gas-water separator 19, a circulating pump 20, a pressure relief valve 21, a hydrogen discharge electromagnetic valve 22 and a water discharge electromagnetic valve 23, wherein the hydrogen inlet electromagnetic valve 17 is positioned at the rear side of the battery module 1 and is fixed on a passenger car body through a bracket; the anode pressure regulator 18 and the gas-water separator 19 are both positioned in the middle layer of the rear side of the battery module 1 and are fixed on the side wall of the aluminum plate 2 through a bracket; the circulating pump 20 is positioned at the middle layer of the rear side of the battery module 1 and is fixed on the shell of the battery module 1 through a transition plate; the pressure release valve 21 is positioned at the left side of the battery module 1 and is fixed on the shell of the battery module 1 through a bracket; the hydrogen discharge solenoid valve 22 and the water discharge solenoid valve 23 are respectively fixed on a hydrogen discharge pipe and a water discharge pipe of the gas-water separator 19 through bolts, hydrogen is supplied by a hydrogen cylinder, and the hydrogen inlet pressure is regulated to the working pressure required by a pile after passing through the hydrogen inlet solenoid valve 17 and the anode pressure regulator 18. The hydrogen outlet of the electric pile is connected with a gas-water separator 19 to separate hydrogen from water vapor, the separated hydrogen enters the electric pile again through a circulating pump 20 to react, the separated condensed water is discharged to the mixer 12 through a drain valve and then is discharged to the atmosphere, and a hydrogen discharge electromagnetic valve 22 is opened to discharge impurity gas in a pipeline into the mixer 12 and then is discharged to the atmosphere during system purging. The relief valve 21 serves as a relief valve, and serves as an emergency relief valve when the hydrogen line pressure is too high.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims (1)

1. The utility model provides a passenger car fuel cell system, includes battery module (1), electrical system, air system, cooling system, hydrogen system and system key spare part, its characterized in that, battery module (1) bottom outer wall is fixed with aluminum plate (2) that are used for being connected with the automobile body through the bolt, system key spare part sets up in the below of aluminum plate (2), electrical system, air system, cooling system, hydrogen system are all fixed in on battery module (1) through the support, and regard battery module (1) as center surrounding type arrangement;
The battery module (1) is a fuel battery module, and is an aluminum shell which wraps the fuel battery module, and the aluminum shell is provided with a plurality of interfaces for being in butt joint with an air system, a hydrogen system, a cooling system and key parts of the system;
the electrical system comprises a DCDC (3), an FCCU (4), a sensor module and a high-low voltage wire harness; the DCDC (3) and the FCCU (4) are positioned at the top of the battery module (1) and are directly connected with the upper cover of the battery module (1) through a bracket, the sensor module is arranged in an air system, a cooling system and a hydrogen system, and the high-low voltage line Shu Bu is arranged on the outer wall of the battery module (1);
The air system comprises an air filter (5), an air flowmeter (6), an air compressor (7), an intercooler (8), a humidifier (9), a bypass valve (10), a back pressure valve (11) and a mixer (12), wherein the air filter (5) is positioned at the right uppermost layer of the battery module (1) and is fixed on an upper cover of the battery module (1) through a bracket, the air flowmeter (6) is positioned at the rear middle layer of the battery module (1) and is fixed on a shell of the battery module (1) through a bracket, the air compressor (7) is positioned at the rear lower layer of the battery module (1) and is fixed on a lower bearing part of the aluminum plate (2) through a bracket, the intercooler (8) is positioned at the front lower layer of the battery module (1) and is directly fixed on a lower bearing part of the aluminum plate (2), and the humidifier (9) is positioned at the front lower layer of the battery module (1) and is fixed on a lower bearing part of the aluminum plate (2) through a bracket; the bypass valve (10) is positioned at the lower layer of the rear side of the battery module (1) and is fixed on the lower bearing part of the aluminum plate (2) through a bracket; the back pressure valve (11) and the mixer (12) are mutually fixed through bolts, are positioned at the rear side of the battery module (1) and are fixed on the body of the passenger car through a bracket;
The cooling system comprises a water pump (13), a deionization and filter (14) two-in-one electronic three-way valve (15) and a conductivity meter (16), wherein the water pump (13) is positioned at the front side of the battery module (1) and is directly fixed on the lower bearing part of the aluminum plate (2), and the deionization and filter (14) and the electronic three-way valve (15) are positioned at the lower layer at the front side of the battery module (1) and are fixed on the humidifier (9); the conductivity meter (16) is positioned right below the water pump (13) and is fixed on the air compressor (7);
in the cooling system, special cooling liquid for the fuel cell is adopted;
The hydrogen system comprises a hydrogen inlet electromagnetic valve, an anode pressure regulator (18), a gas-water separator (19), a circulating pump (20), a pressure relief valve (21), a hydrogen discharge electromagnetic valve (22) and a water discharge electromagnetic valve (23), wherein the hydrogen inlet electromagnetic valve (17) is positioned at the rear side of the battery module (1) and is fixed on a passenger car body through a bracket; the anode pressure regulator (18) and the gas-water separator (19) are both positioned at the middle layer of the rear side of the battery module (1) and are fixed on the side wall of the aluminum plate (2) through a bracket; the circulating pump (20) is positioned at the middle layer of the rear side of the battery module (1) and is fixed on the shell of the battery module (1) through a transition plate; the pressure release valve (21) is positioned at the left side of the battery module (1) and is fixed on the shell of the battery module (1) through a bracket; the hydrogen discharging electromagnetic valve (22) and the water discharging electromagnetic valve (23) are respectively fixed on a hydrogen discharging pipe and a water discharging pipe of the gas-water separator (19) through bolts;
The DCDC (3) has the function of adjusting the voltage output by the fuel cell to a voltage platform required by the whole vehicle, and simultaneously ensuring the stability of the external output voltage of the system; the FCCU (4) is a controller of the whole fuel cell system, monitors the fuel cell system and each part to ensure the stable and reliable operation of the system, and meanwhile, the whole vehicle controller exchanges data to ensure the matching of the fuel cell system and the whole vehicle performance; each sensor transmits the temperature, pressure and other data of each subsystem to the FCCU (4) in real time, so that the FCCU (4) processes the fed-back data and adjusts the running conditions of the whole system and parts in real time; the high-voltage wire harness transmits high-voltage power output by the pile module to the DCDC (3) for boosting and stabilizing voltage, and the low-voltage wire harness transmits each control signal and low-voltage power to each part and the FCCU (4) so as to ensure that the FCCU (4) monitors each part in real time;
The back pressure valve (11) and the mixer (12) are integrated together and serve as a tail gas discharge port of a galvanic pile to be arranged at a passage in a vehicle, and a rear connecting pipeline is directly arranged at the tail end of the vehicle; the bypass valve (10) serves as an air intake bypass to vent excess air into the mixer (12) and then to the atmosphere.
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CN114347810B (en) * 2022-03-17 2022-07-29 杭叉集团股份有限公司 Distributed architecture hydrogen fuel cell forklift

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