CN110212229B - Vehicle-mounted fuel cell system and fuel cell vehicle - Google Patents
Vehicle-mounted fuel cell system and fuel cell vehicle Download PDFInfo
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- CN110212229B CN110212229B CN201910561271.7A CN201910561271A CN110212229B CN 110212229 B CN110212229 B CN 110212229B CN 201910561271 A CN201910561271 A CN 201910561271A CN 110212229 B CN110212229 B CN 110212229B
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- 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
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- 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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
- H01M8/2475—Enclosures, casings or containers of fuel cell stacks
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
- H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
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- 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
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- 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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Abstract
The invention discloses a vehicle-mounted fuel cell system, which comprises a cell box body 1 and an internal unit integrated in the cell box body 1, wherein the internal unit comprises a galvanic pile, a gas-water separation device and a humidifier. The vehicle-mounted fuel cell system has the characteristics of convenience in integration, high dustproof and waterproof level, high insulation level, good appearance integrity, convenience in maintenance and the like, and the system has high operation safety. The invention also discloses a fuel cell automobile.
Description
Technical Field
The invention belongs to the technical field of new energy automobiles, and particularly relates to a vehicle-mounted fuel cell system and a fuel cell automobile.
Background
The fuel cell is a power generation device which directly converts chemical energy into electric energy through electrochemical reaction, has the characteristics of high efficiency, high power, long power supply time, long service life, high reliability, low noise, no harmful emissions and the like, and has great application potential in the field of transportation. According to the general arrangement requirements, the integration of the vehicle-mounted fuel cell system generally adopts distributed arrangement and integrated frame type arrangement, and the existing vehicle-mounted fuel cell system arrangement mode has the problems of low insulation value, poor dustproof and waterproof effects or difficult maintenance and the like.
In order to solve the defects, the existing vehicle-mounted fuel cell system adopts an insulation material to wrap the galvanic pile for isolation, but still has insulation faults in the operation process, and can operate only by shielding insulation monitoring, so that the problem of reduction of net output power of the fuel cell system exists on one hand, and the high-voltage electric shock risk also exists on the other hand.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a vehicle-mounted fuel cell system, aiming at improving the operation safety of the system.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the vehicle-mounted fuel cell system comprises a cell box body and an internal unit integrated in the cell box body, wherein the internal unit comprises a galvanic pile, a gas-water separation device and a humidifier.
The battery box body comprises a main frame and a panel assembly which is arranged on the main frame and used for forming a sealed cavity, and the internal unit is located in the sealed cavity.
The panel assembly comprises two first panels, two second panels and a third panel, wherein the two first panels, the two second panels and the third panel are arranged on the main frame, the two first panels are oppositely arranged, the two first panels are positioned on the same straight line parallel to the first direction, the two second panels are oppositely arranged, the two second panels are positioned on the same straight line parallel to the second direction, the third panel is positioned above the first panels and the second panels, and the first direction is vertical to the second direction.
The panel assembly further comprises a bottom plate which is arranged on the main frame and is arranged opposite to the third panel, the bottom plate is located below the first panel and the second panel, and the closed cavity is formed by surrounding the first panel, the second panel, the third panel and the bottom plate.
The panel component is made of aluminum alloy, magnesium alloy, engineering plastic, high-strength steel, GFRP or CFRP materials, and the main frame is made of aluminum alloy, magnesium alloy, engineering plastic, high-strength steel, GFRP or CFRP materials.
The vehicle-mounted fuel cell system further comprises a mounting support and a plurality of mounting cushion blocks, wherein the mounting support is connected with the cell box body, the mounting cushion blocks are arranged on the mounting support, the mounting cushion blocks are made of hard foaming insulating materials, and the thickness of the mounting cushion blocks is 20-60 mm.
The main frame includes upper integrated frame, lower floor's integrated frame and sets up the buffer block between upper integrated frame and lower floor's integrated frame, and the buffer block adopts hard foaming insulating material to make, the pile sets up in the inside of upper integrated frame, the humidifier with gas-water separation device sets up in the inside of lower floor's integrated frame and is located the below of pile.
The internal unit still includes the hydrogen pump that returns, the hydrogen pump set up in the inside of lower floor's integrated frame just is located the below of galvanic pile, the hydrogen pump that returns with the galvanic pile with gas-water separation device connects.
The internal unit further includes a pressure sensor, a temperature sensor, a back pressure valve, a water discharge solenoid valve, and a hydrogen discharge solenoid valve.
The invention also provides a fuel cell automobile which comprises the vehicle-mounted fuel cell system.
The vehicle-mounted fuel cell system has the characteristics of convenience in integration, high dustproof and waterproof grade, high insulation grade, good appearance integrity, convenience in maintenance and the like, and the system is high in operation safety.
Drawings
FIG. 1 is an isometric view of an on-board fuel cell system of the present invention;
fig. 2 is a plan view of the vehicle-mounted fuel cell system of the invention;
fig. 3 is a partial cross-sectional view of the vehicle-mounted fuel cell system of the invention;
the labels in the above figures are: 1. a battery case; 101. a first panel; 102. a second panel; 103. a third panel; 104. a main frame beam; 105. a fastener; 106. a base plate; 2. installing a cushion block; 3. mounting a bracket; 301. hoisting holes; 302. a panel connection hole; 303. fixing the mounting hole; 4. a power output terminal; 5. a main controller connection terminal; 6. a low-voltage driving power supply and a control signal connecting terminal; 7. an air inlet pipe; 8. an air outlet pipe; 9. a hydrogen inlet pipe; 10. a coolant inlet pipe; 11. a coolant outlet pipe; 12. a stack output terminal; 121. a positive stack output terminal; 122. a stack negative output terminal; 13. a pile fastening bracket; 14. a hydrogen return line; 15. a galvanic pile; 16. a gas-water separation device; 17. a hydrogen return pump; 18. a humidifier; 19. a pressure regulating valve; 20. a pressure valve; 21. a buffer block; 22. a hydrogen discharge line; 23. a hydrogen leak sensor.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a purpose of helping those skilled in the art to more fully, accurately and deeply understand the concept and technical solution of the present invention and to facilitate its implementation.
It should be noted that, in the following embodiments, the terms "first", "second" and "third" do not denote absolute differences in structure and/or function, nor do they denote a sequential order of execution, but rather are used for convenience of description.
As shown in fig. 1 to 3, the present invention provides a vehicle-mounted fuel cell system including a battery case 1 and an internal unit integrated inside the battery case 1, the internal unit including a cell stack 15, a gas-water separation device 16, and a humidifier 18.
Specifically, as shown in fig. 1 to 3, the battery case 1 is a rectangular case with a hollow interior, and the battery case 1 separates the internal unit from the external environment. The internal unit is packaged in the battery box body 1 and is subjected to insulation treatment, and the formed vehicle-mounted fuel battery system has the characteristics of convenience in integration, high dustproof and waterproof grade, high insulation grade, good appearance integrity, convenience in maintenance and the like, and the safety of system operation is improved. The battery box body 1 comprises a main frame and a panel assembly which is arranged on the main frame and used for forming a sealed cavity, the internal unit is located in the sealed cavity, the main frame is of a rectangular frame structure, and the sealed cavity is an inner cavity of the battery box body 1 and is a rectangular cavity.
As shown in fig. 1 to 3, the panel assembly includes two first panels 101, two second panels 102 and a third panel 103 disposed on the main frame, the two first panels 101 are disposed oppositely, the two first panels 101 are disposed on a same straight line parallel to the first direction, the two second panels 102 are disposed oppositely, the two second panels 102 are disposed on a same straight line parallel to the second direction, the third panel 103 is disposed above the first panels 101 and the second panels 102, and both the first direction and the second direction are horizontal and the first direction is perpendicular to the second direction. The panel assembly further comprises a bottom plate 106 arranged on the main frame and opposite to the third panel 103, the bottom plate 106 is located below the first panel 101 and the second panel 102, and the closed cavity is formed by the first panel 101, the second panel 102, the third panel 103 and the bottom plate 106 in a surrounding mode. First panel 101, second panel 102, third panel 103 and bottom plate 106 are the rectangle flat board, the length direction and the second direction of bottom plate 106 and third panel 103 parallel, the width direction and the first direction of bottom plate 106 and third panel 103 parallel, the length direction and the second direction of first panel 101 parallel, the width direction and the third direction of first panel 101 parallel, the third direction is vertical direction and third direction and first direction and second direction mutually perpendicular, the length direction and the third direction of second panel 102 parallel, the width direction and the first direction of second panel 102 parallel. The bottom plate 106 is located below the main frame and the bottom plate 106 is fixedly installed at the bottom of the main frame through fasteners, the third panel 103 is located above the main frame and the third panel 103 is fixedly installed at the top of the main frame through fasteners, the two first panels 101 are located at two opposite sides of the main frame and the first panels 101 are fixedly installed at the side portions of the main frame through fasteners, and the two second panels are located at two opposite sides of the main frame and the second panels 102 are fixedly installed at the side portions of the main frame through fasteners. The first panel 101, the second panel 102 and the third panel 103 are connected with the main frame beam 104 through fasteners, and the fuel cell system obtained after fastening and sealing has good dustproof and waterproof effects. The fastener is a rivet, a fastening bolt, a self-tapping screw or the like.
The main frame is made of light materials, such as aluminum alloy, magnesium alloy, engineering Plastic, high-strength steel, GFRP (Glass Fiber Reinforced Plastic) or CFRP (Carbon Fiber Reinforced composite) materials. The main frame is preferably made of aluminum alloy, magnesium alloy or CFRP material, and most preferably made of aluminum alloy material.
The panel component is made of aluminum alloy, magnesium alloy, engineering plastics, high-strength steel, GFRP or CFRP materials. The first panel 101 is made of aluminum alloy, magnesium alloy, engineering plastic, high-strength steel, GFRP or CFRP material, preferably aluminum alloy, magnesium alloy or CFRP material, and most preferably aluminum alloy material. The second panel 102 is made of aluminum alloy, magnesium alloy, engineering plastic, high-strength steel, GFRP or CFRP material, preferably aluminum alloy, magnesium alloy or CFRP material, and most preferably aluminum alloy material. The third panel 103 is made of aluminum alloy, magnesium alloy, engineering plastic, high-strength steel, GFRP or CFRP material, preferably aluminum alloy, magnesium alloy or CFRP material, and most preferably aluminum alloy material.
As shown in fig. 1 to 3, the vehicle-mounted fuel cell system of the present invention further includes a plurality of mounting brackets 3 connected to the cell box 1, and mounting pads 2 disposed on the mounting brackets 3, wherein the mounting brackets 3 are made of a hard foamed insulating material, and the thickness of the mounting pads 2 is 20 to 60 mm. The mounting bracket 3 is used for being fixedly connected with a frame of a fuel cell automobile, so that the fuel cell system is fixedly mounted on the frame. The mounting brackets 3 are fixedly connected with the second panel 102, the mounting brackets 3 are located on the outer side of the second panel 102, the mounting brackets 3 are totally four, two mounting brackets 3 are respectively arranged on each second panel 102, and the two mounting brackets 3 arranged on the second panel 102 are located on the same straight line parallel to the first direction. The mounting cushion block 2 is located below the mounting bracket 3 and fixedly connected with the mounting bracket 3, and the mounting cushion block 2 is clamped between the mounting bracket 3 and the frame to play an insulating role and also play a buffering role.
The mounting bracket 3 can be made of materials such as aluminum alloy, magnesium alloy or high-strength steel, and the mounting bracket 3 is preferably made of aluminum alloy or stainless steel materials, and most preferably made of aluminum alloy materials. As shown in fig. 1, the mounting bracket 3 is fixedly connected to the second panel 102 by bolts, and the mounting bracket 3 has panel connection holes through which the bolts pass. The bottom of the mounting bracket 3 is provided with a fixed mounting hole 303, and the fixed mounting hole 303 is used for allowing a bolt to pass through when the vehicle-mounted fuel cell system is fixedly connected with a vehicle mounting point. The mounting bracket 3 is provided with a lifting hole 301, and the lifting hole 301 is used for lifting and mounting the vehicle-mounted fuel cell system in the mounting process.
As shown in fig. 1, the vehicle-mounted fuel cell system of the present invention further includes a power output terminal 4 provided on the cell housing 1, the power output terminal 4 being capable of withstanding the maximum current output from the stack 15 and having an IP67 protection rating.
As shown in fig. 1, the vehicle-mounted fuel cell system of the present invention further includes a main controller connection terminal 5 provided on the cell housing 1, the main controller connection terminal 5 is used for connecting with a fuel cell main controller, the fuel cell main controller is located outside the vehicle-mounted fuel cell system, the fuel cell main controller is used for controlling the operation and fault diagnosis of the whole fuel cell system, and the main controller connection terminal 5 is connected with a single-chip polling system located inside the cell housing 1. The power output terminal 4 and the main controller connection terminal 5 are fixedly provided on the same second panel 102, and the main controller connection terminal 5 is located above the power output terminal 4.
As shown in fig. 1, the vehicle-mounted fuel cell system of the present invention further includes a low voltage driving power supply and control signal connection terminal 6 disposed on the cell box 1, the low voltage driving power supply and control signal connection terminal 6 is composed of a plurality of terminals as required, and a part of the terminals of the low voltage driving power supply and control signal connection terminal 6 is connected to the low voltage DC/DC to provide a 12-36V driving power supply for internal units such as a pressure regulating valve 19 and a hydrogen return pump 17 located inside the cell box 1; and part of the low-voltage driving power supply and control signal connecting terminal 6 is connected with a temperature sensor, a pressure sensor, a liquid level sensor and the like to provide signal input for the main fuel cell controller. The power output terminal 4 and the main controller connection terminal 5 are fixedly arranged on the same second panel 102 as the low voltage driving power supply and control signal connection terminal 6, and the low voltage driving power supply and control signal connection terminal 6 is positioned above the main controller connection terminal 5.
As shown in fig. 1, the vehicle-mounted fuel cell system of the present invention further includes an air inlet pipe 7 and an air outlet pipe 8 disposed on the cell box 1, axes of the air inlet pipe 7 and the air outlet pipe 8 are parallel to the second direction, and the air inlet pipe 7 and the air outlet pipe 8 are made of engineering plastics, such as HDPE (high density polyethylene), PTFE (polytetrafluoroethylene), or PA6 (nylon). The air inlet pipe 7 and the air outlet pipe 8 are fixedly arranged on the same second panel 102 with the power output terminal 4.
As shown in fig. 1, the vehicle-mounted fuel cell system of the present invention further includes a coolant inlet pipe 10 and a coolant outlet pipe 11 disposed on the cell box 1, axes of the coolant inlet pipe 10 and the coolant outlet pipe 11 are parallel to the second direction, and the coolant inlet pipe 10 and the coolant outlet pipe 11 are made of engineering plastics, such as HDPE (high density polyethylene), PTFE (polytetrafluoroethylene), or PA6 (nylon). The cooling liquid inlet pipe 10, the cooling liquid outlet pipe 11 and the power output terminal 4 are fixedly arranged on the same second panel 102, the height of the cooling liquid inlet pipe 10 is smaller than that of the cooling liquid outlet pipe 11, and the cooling liquid inlet pipe 10 and the cooling liquid outlet pipe 11 are positioned on the same straight line parallel to the third direction.
As shown in fig. 1 to 3, the main frame includes an upper integrated frame, a lower integrated frame, and a buffer block 21 disposed between the upper integrated frame and the lower integrated frame, the buffer block 21 is made of a hard foamed insulating material, the cell stack 15 is disposed inside the upper integrated frame, the humidifier 18 and the gas-water separation device 16 are disposed inside the lower integrated frame and below the cell stack 15, and the integrated level is high and the structure is compact. The upper integrated frame is located the top of lower floor's integrated frame, upper integrated frame and lower floor's integrated frame fixed connection, and buffer block 21 presss from both sides between upper integrated frame and lower floor's integrated frame, and buffer block 21 plays the insulating effect, and buffer block 21 is used for realizing insulating isolation in the junction of upper integrated frame and lower floor's integrated frame, can also play buffering cushioning effect simultaneously, can provide effective protection to entire system. The electric pile output terminal 12 is made of copper bars, and the electric pile output terminal 12 is used for connecting electric energy output by the electric pile 15 with the electric power output terminal 4 through a cable.
The electric pile 15 is fixedly arranged on the upper integrated frame through the electric pile fastening bracket 13, the electric pile fastening bracket 13 is made of light materials, such as aluminum alloy, magnesium alloy, engineering plastics, high-strength steel, GFRP or CFRP, preferably aluminum alloy, magnesium alloy or CFRP, and most preferably aluminum alloy materials. The stack fastening bracket 13 functions to support and fasten the stack 15.
As shown in fig. 1 to 3, the internal unit further includes a hydrogen return pump 17, the hydrogen return pump 17 is disposed inside the lower integrated frame and below the stack 15, and the hydrogen return pump 17 is connected to the stack 15 and the gas-water separation device 16. The cell stack 15 is connected to the gas-water separator 16 through a hydrogen discharge line 22, and the fuel gas discharged from the cell stack 15 and having an incomplete reaction flows to the gas-water separator 16 through the hydrogen discharge line 22. The hydrogen return pipeline 14 is used for introducing anode incomplete reaction fuel in the electric pile 15 into the gas-water separation device 16, after gas-water separation, the gas is mixed with hydrogen entering through the hydrogen inlet pipe 9 through the hydrogen return pump 17, and the mixture enters the electric pile 15 for electrochemical reaction.
As shown in fig. 1 to 3, the humidifier 18 is used to mix hot and humid air coming out of the cell stack 15 with dry air compressed by an air compressor, so as to provide air with a suitable temperature and humidity for the cell stack 15. The humidifier 18 is arranged at a position close to the air inlet pipe 7 and the air outlet pipe 8, the gas-water separation device 16 is arranged at a position close to a hydrogen discharge port of the galvanic pile 15, so that the hydrogen discharge pipeline 22 is as short as possible, liquid water separated by the gas-water separation device 16 is discharged at regular time according to the liquid water capacity of the device, residual fuel gas is discharged at regular time according to the load ampere hours of the galvanic pile 15, the discharged residual fuel gas is combined with the water discharge pipeline and is introduced into the air outlet pipe 8, and the residual fuel gas is diluted and safely discharged; the fuel gas which is not discharged and separated by the gas-water separation device 16 enters the hydrogen return pump 17, is mixed with the low-pressure dry hydrogen gas entering from the hydrogen storage tank through the hydrogen return pipeline 14 and enters the electric pile 15.
As shown in fig. 1, the power output terminal 4, the main controller connection terminal 5, the low-voltage driving power supply and control signal connection terminal 6, the air inlet pipe 7, the air outlet pipe 8, the hydrogen inlet pipe 9, the coolant inlet pipe 10, and the coolant outlet pipe 11 are integrated on the same second panel 102, so as to be conveniently connected with the air compressor, the fuel cell controller, and other components. The positive pile output terminal 121 and the negative pile output terminal 122 of the pile are respectively connected with the power output terminal 4 through cables by the pile output terminal 12, and the power output terminal 4 can output electric energy to the outside after being connected with high-voltage DC/DC through corresponding plug-in units and cables.
As shown in fig. 3, the internal unit further includes a pressure regulating valve 19, a pressure valve 20, a hydrogen leakage sensor 23, a pressure sensor, a temperature sensor, a back pressure valve, a water discharge solenoid valve, and a hydrogen discharge solenoid valve. The pressure regulating valve 19 and the pressure valve 20 are connected, and the pressure regulating valve 19 and the pressure valve 20 are used for controlling the pressure of the hydrogen entering the galvanic pile 15 and ensuring that the pressure of the hydrogen in the anode chamber of the galvanic pile 15 is within a set pressure range. The hydrogen leakage sensor 23 is used for monitoring the internal hydrogen leakage condition of the battery box body 1 and guaranteeing the safe operation of the system, the measurement range of the hydrogen leakage sensor 23 is 0-10000 ppm, the minimum recognition rate is less than or equal to 1ppm, and the response time is less than or equal to 0.5 s.
Example one
In the vehicle-mounted fuel cell system of the present embodiment, the first panel 101, the second panel 102, and the third panel 103 are made of an aluminum alloy material, the main frame is made of a CFRP material, the mounting bracket 3 is made of an aluminum alloy material, the thickness of the mounting mat 2 is 60mm, the thickness of the buffer block 21 is 40mm, the main controller connection terminal 5, the power output terminal 4, the low-voltage driving power supply and the control signal connecting terminal 6 are all IP67 protection grades, the air inlet pipe 7 and the air outlet pipe 8 are made of HDPE materials, the hydrogen inlet pipe 9 is made of stainless steel materials, the cooling liquid inlet pipe 10 and the cooling liquid outlet pipe 11 are made of HDPE materials, the hydrogen return pipeline 14 and the hydrogen exhaust pipeline 22 are made of stainless steel materials, the power of the galvanic pile 15 is 90kW, the Gas-water separation device 16 is a cyclone Gas-water separation device, and the humidifier 18 is a Gas-Gas membrane type humidifier.
Example two
In the vehicle-mounted fuel cell system of the embodiment, the first panel 101, the second panel 102, and the third panel 103 are made of CFRP materials, the main frame is made of CFRP materials, the mounting bracket 3 is made of aluminum alloy materials, the thickness of the mounting pad 2 and the buffer block 21 is 20mm, the main controller connection terminal 5, the power output terminal 4, the low-voltage driving power supply, and the control signal connection terminal 6 are all IP67 protection grade, the air inlet pipe 7 and the air outlet pipe 8 are made of PA6 materials, the hydrogen inlet pipe 9 is made of stainless steel, the cooling liquid inlet pipe 10 and the cooling liquid outlet pipe 11 are made of PA6 materials, the hydrogen return pipe 14 and the hydrogen exhaust pipe 22 are made of stainless steel, the power of the cell stack 15 is 72kW, the Gas-water separation device 16 is a cyclone Gas-water separation device, and the humidifier 18 is a Gas-Gas membrane type humidifier.
EXAMPLE III
In the vehicle-mounted fuel cell system of the present embodiment, the first panel 101, the second panel 102, and the third panel 103 are made of an aluminum alloy material, the main frame is made of an aluminum alloy material, the mounting bracket 3 is made of an aluminum alloy material, the thickness of the mounting mat 2 is 40mm, the thickness of the buffer block 21 is 30mm, the main controller connection terminal 5, the power output terminal 4, the low-voltage driving power supply and the control signal connecting terminal 6 are all IP67 protection grades, the air inlet pipe 7 and the air outlet pipe 8 are made of PTFE materials, the hydrogen inlet pipe 9 is made of stainless steel materials, the cooling liquid inlet pipe 10 and the cooling liquid outlet pipe 11 are made of PTFE materials, the hydrogen return pipeline 14 and the hydrogen exhaust pipeline 22 are made of stainless steel materials, the power of the galvanic pile 15 is 56kW, the Gas-water separation device 16 is a cyclone Gas-water separation device, and the humidifier 18 is a Gas-Gas membrane type humidifier.
The invention also provides a fuel cell automobile which comprises the vehicle-mounted fuel cell system with the structure. The specific structure of the vehicle-mounted fuel cell system can refer to fig. 1 to 3, and is not described herein again. Since the fuel cell vehicle of the invention includes the vehicle-mounted fuel cell system in the above-described embodiment, it has all the advantages of the above-described vehicle-mounted fuel cell system.
The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to apply the inventive concept and solution to other applications without substantial modification.
Claims (10)
1. A vehicle-mounted fuel cell system characterized by: the device comprises a battery box body and an internal unit integrated in the battery box body, wherein the internal unit comprises a galvanic pile, a gas-water separation device and a humidifier;
the battery box body is a rectangular box body with a hollow interior, and the battery box body separates an internal unit from an external environment; the battery box body comprises a main frame and a panel assembly which is arranged on the main frame and is used for forming a sealed cavity, the internal unit is positioned in the sealed cavity, the main frame is of a rectangular frame structure, the sealed cavity is an internal cavity of the battery box body, and the sealed cavity is a rectangular cavity;
the main frame is made of light materials, and the panel component is made of aluminum alloy, magnesium alloy, engineering plastics, high-strength steel, GFRP or CFRP materials;
the vehicle-mounted fuel cell system also comprises a plurality of mounting brackets connected with the cell box body and a plurality of mounting cushion blocks arranged on the mounting brackets, wherein the mounting cushion blocks are made of hard foamed insulating materials, and the thickness of each mounting cushion block is 20-60 mm; the mounting bracket is used for being fixedly connected with a frame of the fuel cell automobile to realize the fixed mounting of the fuel cell system on the frame; the mounting cushion block is positioned below the mounting bracket and fixedly connected with the mounting bracket, and the mounting cushion block is clamped between the mounting bracket and the frame to play an insulating role and play a buffering role;
the vehicle-mounted fuel cell system also comprises a power output terminal arranged on the cell box body, wherein the power output terminal can bear the maximum current output by the electric pile and has an IP67 protection grade;
the vehicle-mounted fuel cell system also comprises a main controller connecting terminal arranged on the cell box body, the main controller connecting terminal is used for being connected with a fuel cell main controller, the fuel cell main controller is positioned outside the vehicle-mounted fuel cell system and used for controlling the operation and fault diagnosis of the whole fuel cell system, and the main controller connecting terminal is connected with a single chip routing inspection system positioned inside the cell box body; the power output terminal and the main controller connecting terminal are fixedly arranged on the same second panel, and the main controller connecting terminal is positioned above the power output terminal;
the vehicle-mounted fuel cell system also comprises a low-voltage driving power supply and a control signal connecting terminal which are arranged on the cell box body, wherein the low-voltage driving power supply and the control signal connecting terminal are composed of a plurality of terminals as required, and part of terminals of the low-voltage driving power supply and the control signal connecting terminal are connected with low-voltage DC/DC to provide 12-36V driving power supply for a pressure regulating valve and a hydrogen return pump which are positioned in the cell box body; a part of terminals of the low-voltage driving power supply and control signal connecting terminal are connected with a temperature sensor, a pressure sensor and a liquid level sensor to provide signal input for a main fuel cell controller; the power output terminal and the main controller connecting terminal are fixedly arranged on the same second panel as the low-voltage driving power supply and the control signal connecting terminal, and the low-voltage driving power supply and the control signal connecting terminal are positioned above the main controller connecting terminal;
the vehicle-mounted fuel cell system also comprises an air inlet pipe and an air outlet pipe which are arranged on the cell box body, the axes of the air inlet pipe and the air outlet pipe are parallel to the second direction, the air inlet pipe and the air outlet pipe are made of engineering plastics, and the air inlet pipe, the air outlet pipe and the power output terminal are fixedly arranged on the same second panel;
the vehicle-mounted fuel cell system also comprises a cooling liquid inlet pipe and a cooling liquid outlet pipe which are arranged on the cell box body, the axes of the cooling liquid inlet pipe and the cooling liquid outlet pipe are parallel to the second direction, and the cooling liquid inlet pipe and the cooling liquid outlet pipe are made of engineering plastics; the cooling liquid inlet pipe, the cooling liquid outlet pipe and the power output terminal are fixedly arranged on the same second panel, the height of the cooling liquid inlet pipe is smaller than that of the cooling liquid outlet pipe, and the cooling liquid inlet pipe and the cooling liquid outlet pipe are positioned on the same straight line parallel to the third direction;
the main frame comprises an upper integrated frame, a lower integrated frame and a buffer block arranged between the upper integrated frame and the lower integrated frame, and the buffer block is made of a hard foamed insulating material;
the electric pile is arranged in the upper integrated frame, and the humidifier and the gas-water separation device are arranged in the lower integrated frame and are positioned below the electric pile; the upper integrated frame is positioned above the lower integrated frame, the upper integrated frame is fixedly connected with the lower integrated frame, the buffer block is clamped between the upper integrated frame and the lower integrated frame, the buffer block plays an insulating role, and the buffer block is used for realizing insulating isolation at the joint of the upper integrated frame and the lower integrated frame and playing a buffering and damping role at the same time;
the galvanic pile output terminal is made of copper bars and is used for connecting electric energy output by the galvanic pile with the electric power output terminal through a cable; the electric pile is fixedly arranged on the upper-layer integrated frame through an electric pile fastening bracket, the electric pile fastening bracket is made of light materials, and the electric pile fastening bracket plays a role in supporting and fastening the electric pile;
the internal unit also comprises a hydrogen return pump, the hydrogen return pump is arranged inside the lower integrated frame and below the galvanic pile, and the hydrogen return pump is connected with the galvanic pile and the gas-water separation device; the galvanic pile is connected with the gas-water separation device through a hydrogen discharge pipeline, and fuel gas which is discharged by the galvanic pile and has incomplete reaction flows to the gas-water separation device through the hydrogen discharge pipeline; the hydrogen return pipeline is used for introducing anode reaction incomplete fuel in the electric pile into the gas-water separation device, and after gas-water separation, the gas is mixed with hydrogen entering through the hydrogen inlet pipe through the hydrogen return pump and enters the electric pile for electrochemical reaction;
the humidifier is used for mixing hot and humid air coming out of the galvanic pile with dry air compressed by the air compressor, so that air with proper temperature and humidity is provided for the galvanic pile; the humidifier is arranged at a position close to the air inlet pipe and the air outlet pipe, the gas-water separation device is arranged at a position close to the hydrogen discharge port of the galvanic pile, liquid water separated by the gas-water separation device is discharged at regular time according to the capacity of the liquid water of the device, residual fuel gas is discharged at regular time according to the ampere-hour number of the load of the galvanic pile, and the discharged residual fuel gas is combined with the water discharge pipeline and is introduced into the air outlet pipe, so that the residual fuel gas can be diluted and safely discharged; the fuel gas which is not discharged and is separated by the gas-water separation device enters a hydrogen return pump, is mixed with low-pressure dry hydrogen entering from a hydrogen storage tank through a hydrogen return pipeline and enters a galvanic pile;
the power output terminal, the main controller connecting terminal, the low-voltage driving power supply and control signal connecting terminal, the air inlet pipe, the air outlet pipe, the hydrogen inlet pipe, the cooling liquid inlet pipe and the cooling liquid outlet pipe are integrated on the same second panel, and are conveniently connected with components such as an air compressor, a fuel cell controller and the like; the positive output terminal and the negative output terminal of the pile are respectively connected with the power output terminal through cables by the pile output terminal, and the power output terminal can output electric energy to the outside after being connected with the high-voltage DC/DC through corresponding plug-in units and cables;
the internal unit also comprises a pressure regulating valve, a pressure valve, a hydrogen leakage sensor, a pressure sensor, a temperature sensor, a back pressure valve, a water discharge electromagnetic valve and a hydrogen discharge electromagnetic valve; the pressure regulating valve is connected with the pressure valve, and the pressure regulating valve and the pressure valve are used for controlling the pressure of hydrogen entering the galvanic pile and ensuring that the pressure of the hydrogen in the anode chamber of the galvanic pile is within a set pressure range; the hydrogen leakage sensor is used for monitoring the internal hydrogen leakage condition of the battery box body.
2. The vehicle-mounted fuel cell system according to claim 1, characterized in that: the panel assembly comprises two first panels, two second panels and a third panel, the two first panels are arranged on the main frame in a relative mode and are located on the same straight line parallel to the first direction, the two second panels are arranged on the same straight line parallel to the second direction in a relative mode, the third panel is located above the first panels and the second panels, and the first direction and the second direction are horizontal directions and are perpendicular to the first direction and the second direction.
3. The vehicle-mounted fuel cell system according to claim 2, characterized in that: the panel assembly further comprises a bottom plate which is arranged on the main frame and is arranged opposite to the third panel, the bottom plate is positioned below the first panel and the second panel, and the closed cavity is formed by the first panel, the second panel, the third panel and the bottom plate in a surrounding mode; the first panel, the second panel, the third panel and the bottom plate are all rectangular flat plates, the length directions of the bottom plate and the third panel are parallel to the second direction, the width directions of the bottom plate and the third panel are parallel to the first direction, the length direction of the first panel is parallel to the second direction, the width direction of the first panel is parallel to the third direction, the third direction is vertical and perpendicular to the first direction and the second direction, the length direction of the second panel is parallel to the third direction, and the width direction of the second panel is parallel to the first direction; the bottom plate is located the below of main frame and the bottom plate passes through fastener fixed mounting in the bottom of main frame, and the third panel is located the top of main frame and the third panel passes through fastener fixed mounting at the top of main frame, and two first panels are located the relative both sides of main frame and the first panel passes through fastener fixed mounting at the lateral part of main frame, and two second panels are located the relative both sides of main frame and the second panel passes through fastener fixed mounting at the lateral part of main frame.
4. The vehicle-mounted fuel cell system according to claim 3, characterized in that: the first panel, the second panel and the third panel are connected with the main frame beam through fasteners; the fastener is a rivet, a fastening bolt or a self-tapping screw.
5. The vehicle-mounted fuel cell system according to any one of claims 2 to 4, characterized in that: the panel component is made of aluminum alloy, magnesium alloy, engineering plastic, high-strength steel, GFRP or CFRP materials, and the main frame is made of aluminum alloy, magnesium alloy, engineering plastic, high-strength steel, GFRP or CFRP materials.
6. The vehicle-mounted fuel cell system according to any one of claims 1 to 4, characterized in that: the measurement range of the hydrogen leakage sensor is 0-10000 ppm, the minimum recognition rate is less than or equal to 1ppm, and the response time is less than or equal to 0.5 s.
7. The vehicle-mounted fuel cell system according to any one of claims 1 to 4, characterized in that: the main frame includes upper integrated frame, lower floor's integrated frame and sets up the buffer block between upper integrated frame and lower floor's integrated frame, and the buffer block adopts hard foaming insulating material to make, the pile sets up in the inside of upper integrated frame, the humidifier with gas-water separation device sets up in the inside of lower floor's integrated frame and is located the below of pile.
8. The vehicle-mounted fuel cell system according to claim 7, characterized in that: the internal unit still includes the hydrogen pump that returns, the hydrogen pump set up in the inside of lower floor's integrated frame just is located the below of galvanic pile, the hydrogen pump that returns with the galvanic pile with gas-water separation device connects.
9. The vehicle-mounted fuel cell system according to claim 7, characterized in that: the internal unit further includes a pressure sensor, a temperature sensor, a back pressure valve, a water discharge solenoid valve, and a hydrogen discharge solenoid valve.
10. A fuel cell vehicle, characterized in that: including the vehicle-mounted fuel cell system according to any one of claims 1 to 9.
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| CN111509276B (en) * | 2020-04-30 | 2021-09-10 | 苏州纳尔森能源科技有限公司 | Combined humidifier of fuel cell |
| CN111725540B (en) * | 2020-06-03 | 2024-03-19 | 奇瑞商用车（安徽）有限公司 | Vehicle-mounted fuel cell system and fuel cell vehicle |
| CN111816896A (en) * | 2020-07-20 | 2020-10-23 | 奇瑞万达贵州客车股份有限公司 | Vehicle-mounted hydrogen supply equipment |
| CN111998032A (en) * | 2020-08-11 | 2020-11-27 | 新源动力股份有限公司 | Device for improving vibration resistance of fuel cell |
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