CN102874127A - Fuel cell power system for forklift - Google Patents
Fuel cell power system for forklift Download PDFInfo
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- CN102874127A CN102874127A CN201210376341XA CN201210376341A CN102874127A CN 102874127 A CN102874127 A CN 102874127A CN 201210376341X A CN201210376341X A CN 201210376341XA CN 201210376341 A CN201210376341 A CN 201210376341A CN 102874127 A CN102874127 A CN 102874127A
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- fuel cell
- dcdc converter
- controller
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- control unit
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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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Abstract
The invention provides a fuel cell power system for a forklift. The fuel cell power system for the forklift comprises a casing (90), a fuel cell system (100) arranged in the casing (90), a direct current to direct current (DCDC) conversion unit (2), a contactor (3), an energy storing device (4) and a controller (7). The fuel cell power system for the forklift further comprises a power output end (5) arranged outside the casing (90) and an operation control unit (6) arranged in the casing (90), the contactor (3) is a normally open type large current contactor, the DCDC conversion unit (2) comprises a DCDC converter (21) and a high power diode (22), and the DCDC converter (21) and the high power diode (22) are connected. The fuel cell power system for the forklift is compact in structure, can be installed, overhauled and maintained conveniently, can be used for placing the energy storing device with higher capacity, enables the energy storing device to be in a long-range charge-discharge state, and prolongs service life of the energy storing device and the time for being shelved.
Description
Technical field
The present invention relates to fuel cell system, particularly, relate to the fork truck fuel cell power system.
Background technology
When the design fork truck is used fuel cell system, in order directly to replace to avoid with existing lead-acid battery the transformation of fork truck, have to all parts are concentrated in the rectangular cavity.Fork truck need to comprise controller, closed-center system, DCDC variator, contactless switch, fuel cell system, hydrogen fill valve, hydrogen cylinder, hydrogen supply system etc. with fuel cell system.System will reach the weight identical with lead-acid battery, also will place counterweight.The needed parts of whole system are integrated in the narrow space, and causing does not have the space between the parts.This can cause installation, and dismounting is trouble very.Even dismounting has to disassemble other parts during parts.
There are many weak points in prior art.The design that has has reduced systemic-function; The less less closed-center system of capacity of size is adopted in the design that has, and has reduced the performance of system; The design plan that has even hydrogen cylinder is placed into the system outside; The design that has does not almost have transportable space between the parts in system, dismantle other parts and must move other parts; The design that has does not have the space to place the emergency cutoff button in system, depends on the emergency cutoff button of hydrogen loading system design, and this can cause the in emergency circumstances rapid shutdown system at system exception.
Application number is that " 200820233706.2 ", name are called the Chinese utility model patent of " fixing device for air bottle of fork truck ", and its disclosed technical scheme is placed on the fork truck rear end to gas cylinder, need to change hydrogen cylinder during use, and this also needs the more time.It is also very dangerous that the while gas cylinder is placed on the fork truck rear.This scheme can't be placed into internal system to hydrogen cylinder because system is compact not.
Publication number is that " CA2659135A1 ", name are called the Can.P. of " FUEL CELL INDUSTRIAL VEHICLE ", and the structure for fuel cell forklift system schema is provided, and has redesigned whole fork truck.Can not directly replace existing forklift battery.
Application number is that " 200920174236.1 ", name are called the Chinese utility model patent of " a kind of novel forklift ", and its technical scheme that provides also considers to redesign existing vehicle.
Application number is that " 200820179687.X ", name are called the Chinese utility model patent of " a kind of structure for fuel cell forklift ", and its technical scheme that provides equally also is the redesign fork truck.
Summary of the invention
For defective of the prior art, the purpose of this invention is to provide a kind of fork truck fuel cell power system.The present invention solves fork truck fuel cell system compactedness problem.Fork truck with fuel cell in whole system being integrated into a rectangular cavity.Because the restriction of size does not almost have transportable space between each parts.Circuit is installed trouble.Parts dismounting trouble must remove other parts.Leave the space of placing counterweight.
According to an aspect of the present invention, a kind of fork truck fuel cell power system is provided, comprise shell and be arranged on described shell interior fuel cell system, DCDC converter unit, contactless switch, energy storage equipment, controller, also comprise and be arranged on the outer power output end of described shell and be arranged on the interior operation control unit of described shell, wherein, described contactless switch is the large contactor of open type, and described DCDC converter unit comprises dcdc converter and the heavy-duty diode that is connected
Described fuel cell system connects described DCDC converter unit, contactless switch, power output end, described controller connects described fuel cell system, operation control unit, contactless switch, and described energy storage equipment connects described controller, operation control unit, contactless switch.
Preferably, described fuel cell system, energy storage equipment, DCDC converter unit are installed on the base plate of described shell successively along described shell direction from front to back.
Preferably, the installation site of described operation control unit and controller all is higher than the installation site of described DCDC converter unit and energy storage equipment.
Preferably, described operation control unit and controller are installed successively along described shell direction from front to back.
Preferably, described contactless switch be installed in described base plate in the side plate and the zone between the described energy storage equipment of described shell.
Preferably, also comprise the electrical isolation plate, hydrogen storage system, the fill valve that are arranged in the described shell, described electrical isolation plate is electronic system space and gas supply space with the spatial separation of described shell, described fuel cell system, DCDC converter unit, contactless switch, energy storage equipment, controller, operation control unit are positioned at described electronic system space, described hydrogen storage system, fill valve are positioned at described gas supply space, and described gas supply space is positioned at a side in described electronic system space.
Preferably, the mouth of the fuel cell that described fuel cell system comprises connects the input end of described DCDC converter unit, the DCDC converter unit connects described energy storage equipment by described contactless switch, the mouth of described DCDC converter unit also connects the high-power accessory that described power output end and described fuel cell system comprise, the port of described energy storage equipment connects the high-power accessory that described power output end and described fuel cell system comprise by described contactless switch, described operation control unit connects respectively described energy storage equipment, the DCDC converter unit, controller, described controller connects respectively the fuel cell that described fuel cell system comprises, ancillary system, the DCDC converter unit, the control end of contactless switch, energy storage equipment, wherein, described ancillary system comprises described high-power accessory
Described operation control unit is used for receiving operation signal and is described controller and the power supply of DCDC converter unit, described controller is used for receiving operating order that described operation control unit generates according to described operation signal and controls described contactless switch, DCDC converter unit, ancillary system according to described operating order, described controller also be used for measuring the fuel cell that described fuel cell system comprises state parameter, measure described energy storage equipment state parameter, measure the state parameter of described ancillary system and receive the status data of described DCDC converter unit.
Preferably, the mouth of described fuel cell connects the input end of described dcdc converter, the output head anode of described dcdc converter connects the positive pole of described heavy-duty diode, the negative pole of described heavy-duty diode connects described energy storage equipment by described contactless switch, described dcdc converter connects described controller and accepts the control of described controller, and described dcdc converter connects described operation control unit and receives the power supply of described operation control unit.
Preferably, described operation control unit is according to the status of electrically connecting of the start operation signal change that receives with described DCDC converter unit and controller.
Preferably, the status data of described DCDC converter unit comprises DCDC received current, DCDC input voltage.
Preferably, also comprise following any or appoint multiple device:
-hydric safe system, described hydric safe system comprise the sensor that is placed on respectively in electronic control system space and the gas supply space, and described sensor connects described controller,
-monitor display, described monitor display connects described controller,
-switching on and shutting down button, described switching on and shutting down button connects respectively described operation control unit and controller,
-Digiplex, described Digiplex connects described operation control unit with wireless mode,
-scram button, described scram button connects described operation control unit.
Compared with prior art, the present invention has following beneficial effect:
1) capacity of energy storing device placed in system of prior art is less, allows closed-center system be in more powerful charging and discharging state, has reduced the life-span of closed-center system.The present invention can place the more closed-center system of high power capacity, allows closed-center system be in charging and discharging state than low range, and the obsolete time can be shelved by the life-span and the system that have prolonged closed-center system.Be in the situation of lithium-ions battery placing closed-center system for example.The lithium-ions battery that design is placed in the prior art, capacity is 32AH, peak value output 48KW.The lithium-ions battery that designed system of the present invention can be placed, capacity are 50AH, peak value output 72KW.When absorbing the fork truck braking, in the situation of 600A, rate of charge is 12C.Prior art is 18C.Charge-discharge magnification when higher capacity of energy storing device has reduced same current output is conducive to prolong the life-span of storage battery.
2) compact conformation of the present invention, can be easily to system install, the work such as repair and maintenance.
3) section in the enclosure, operation control unit, controller are placed on the top, need not move on in system in the situation of fork truck outside, can Inspection and maintenance.Fault is got rid of.Also convenient upgrading to controller control software.
4) between parts and the parts, all leave the space between parts and the shell.This space is connection line easily, removes parts.
5) structure design compactness of the present invention can be placed the emergency cutoff button.Such as emergency situation, can cut off rapidly whole system.
6) placing height of the parts such as the switching on and shutting down button of system's action need, scram button, fill valve is suitable, convenient filling, operation.
Description of drawings
By reading the detailed description of non-limiting example being done with reference to the following drawings, it is more obvious that other features, objects and advantages of the present invention will become:
Fig. 1 is according to the integral structure scheme drawing of fork truck provided by the invention with fuel cell power system;
Fig. 2 is according to the system architecture scheme drawing of fork truck provided by the invention with fuel cell power system;
Fig. 3 is the structural representation that fork truck shown in Figure 2 is used the DCDC converter unit in the fuel cell power system;
Fig. 4 illustrates according to the position view of fork truck provided by the invention with heavy-duty diode in the fuel cell power system;
Fig. 5 is according to the specific embodiment A of fork truck provided by the invention with fuel cell power system;
Fig. 6 is according to the specific embodiment B of fork truck provided by the invention with fuel cell power system.
The specific embodiment
The present invention is described in detail below in conjunction with specific embodiment.Following examples will help those skilled in the art further to understand the present invention, but not limit in any form the present invention.Should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, can also make some distortion and improvement.These all belong to protection scope of the present invention.
According to fork truck fuel cell power system provided by the invention, comprise shell 90 and be arranged on fuel cell system 100, DCDC converter unit 2, contactless switch 3, energy storage equipment 4, controller 7, operation control unit 6, electrical isolation plate 901, hydrogen storage system, fill valve 95 in the described shell 90, also comprise being arranged on the outer power output end 5 of described shell 90.Wherein, described contactless switch 3 is the large contactor of open type, and described DCDC converter unit 2 comprises dcdc converter 21 and the heavy-duty diode 22 that is connected.Described fuel cell system 100 connects described DCDC converter unit 2, contactless switch 3, power output end 5, described controller 7 connects described fuel cell system 100, operation control unit 6, contactless switch 3, and described energy storage equipment 4 connects described controller 7, operation control unit 6, contactless switch 3.
Described fuel cell system 100, energy storage equipment 4, DCDC converter unit 2 are installed on the base plate of described shell 90 successively along described shell 90 direction from front to back.The installation site of described operation control unit 6 and controller 7 all is higher than the installation site of described DCDC converter unit 2 and energy storage equipment 4.Described operation control unit 6 and controller 7 are installed successively along described shell 90 direction from front to back.Described contactless switch 3 be installed in described base plate in the side plate and the zone between the described energy storage equipment 4 of described shell 90.
Described electrical isolation plate 901 is electronic system space and gas supply space with the spatial separation of described shell 90, described fuel cell system 100, DCDC converter unit 2, contactless switch 3, energy storage equipment 4, controller 7, operation control unit 6 are positioned at described electronic system space, described hydrogen storage system, fill valve 95 are positioned at described gas supply space, and described gas supply space is positioned at a side in described electronic system space.
In a preference, described fork truck also comprises the hydric safe system with fuel cell power system, monitor display 91, switching on and shutting down button 92, Digiplex 93, scram button 94, wherein, described hydric safe system comprises and is placed on respectively the electronic control system space, and the sensor in the gas supply space, described sensor connects described controller 7, described monitor display 91 connects described controller 7, described switching on and shutting down button 92 connects respectively described operation control unit 6 and controller 7, described Digiplex 93 connects described operation control unit 6 with wireless mode, and described scram button 94 connects described operation control unit 6.
Described fuel cell system 100 comprises fuel cell 1 and ancillary system 8.Described ancillary system 8 comprises air supply system, cooling system, hydrogen supply system, and described high-power accessory 80 refers to the high-power parts (for example blower fan, pump, radiator fan) in the ancillary system.Those skilled in the art can with reference to the described ancillary system 8 of existing techniques in realizing and high-power accessory 80 thereof, not repeat them here.
Fig. 5 and Fig. 6 show two according to the fuel cell power system in the specific embodiment of the present invention.Particularly, Fig. 5 illustrates specific embodiment A: 2 tons of electri forklifts of certain fork truck factory use the lead-acid battery model to be 9PZS630 48V.This lead-acid storage battery length 1070mm, width 827mm, height 520mm, weight is 1070kg, voltage 48V.Fork truck operating voltage range 40-60V.Design system length is 980mm, width 827mm, and height 520mm, weight is 1070Kg, the rated voltage 40-60V of system.Fig. 6 illustrates specific embodiment B: certain fork truck factory four-wheel counterbalanced lift truck electri forklift uses lead-acid storage battery, length 982mm, and width 836mm, height 565mm, weight is 1400kg.Fork truck operating voltage range 40-60V.Design system length is 980mm, width 827mm, and height 565mm, weight is 1400Kg, the rated voltage 40-60V of system.Adopt equally with instantiation mode A, increased a weight coating in the bottom, reached the weight that fork truck needs.
Why the present invention can be designed to compact form as shown in Figure 1, mainly is because adopted compact fuel cell power-supply system as shown in Figure 2, next compact fuel cell power-supply system shown in Figure 2 is described.
As shown in Figure 2, described compact fuel cell power-supply system, comprise fuel cell 1, DCDC converter unit 2, contactless switch 3, energy storage equipment 4, power output end 5, operation control unit 6, controller 7, ancillary system 8, wherein, described contactless switch 3 is the large contactor of open type, and described DCDC converter unit 2 comprises dcdc converter 21 and the heavy-duty diode 22 that is connected.
Particularly, the mouth of described fuel cell 1 connects the input end of described DCDC converter unit 2, DCDC converter unit 2 connects described energy storage equipment 4 by described contactless switch 3, the mouth of described DCDC converter unit 2 also connects the high-power accessory 80 that described power output end 5 and described ancillary system 8 comprise, the port of described energy storage equipment 4 connects described power output end 5 and ancillary system 8 by described contactless switch 3, described operation control unit 6 connects respectively described energy storage equipment 4, DCDC converter unit 2, controller 7, described controller 7 connects respectively described fuel cell 1, DCDC converter unit 2, the control end of contactless switch 3, energy storage equipment 4, ancillary system 8.
In the present embodiment, the output head anode of described DCDC converter unit 2 connects the positive pole of described energy storage equipment 4 by described contactless switch 3, the negative pole of output end of described DCDC converter unit 2 connects the negative pole of described energy storage equipment 4 by described contactless switch 3, the positive pole of described energy storage equipment 4 connects the positive pole of described power output end 5 and the positive pole of ancillary system 8 by described contactless switch 3, and the negative pole of described energy storage equipment 4 directly connects the negative pole of described power output end 5 and the negative pole of ancillary system 8; And in a variation example of present embodiment, be with difference embodiment illustrated in fig. 2, in this variation example, the connection location of described contactless switch 3 is changed to: described contactless switch 3 is connected between the negative pole of the negative pole of output end of described DCDC converter unit 2 and described energy storage equipment 4, and directly be connected between the positive pole of the output head anode of described DCDC converter unit 2 and described energy storage equipment 4, correspondingly, the anodal positive pole of described power output end 5 and the positive pole of ancillary system 8 of directly connecting of described energy storage equipment 4, the negative pole of described energy storage equipment 4 connects the negative pole of described power output end 5 and the negative pole of ancillary system 8 by described contactless switch 3.Two kinds of connection modes that it will be appreciated by those skilled in the art that the contactless switch 3 of describing in this paragragh all can realize " DCDC converter unit 2 connects described energy storage equipment 4 by described contactless switch 3 " and " port of described energy storage equipment 4 connects described power output end 5 and ancillary system 8 by described contactless switch 3 ".
Described operation control unit 6 is used for receiving operation signal and is described controller 7 and 2 power supplies of DCDC converter unit, described controller 7 is used for receiving described operation control unit 6 and controls described contactless switch 3, DCDC converter unit 2, ancillary system 8 according to the operating order of described operation signal generation and according to described operating order, and described controller 7 also is used for measuring the state parameter of the state parameter of described fuel cell 1, the state parameter of measuring described energy storage equipment 4, the described ancillary system 8 of measurement and receives the status data of described DCDC converter unit 2.Described dcdc converter 21 comprises CAN communication module, input voltage measurement module, received current measurement module, output voltage measurement module, outgoing current measurement module.Preferably, dcdc converter 21 can be according to the communication data control outgoing current of CAN communication module, the concrete numerical value of voltage; Also by data such as CAN communication module output-input voltage, received current, output voltage, outgoing currents.The status data of described DCDC converter unit 2 comprises DCDC received current, DCDC input voltage.
Described controller 7 is controllers of integrated design, has been equivalent to number of patent application integrated and has been fuel cell controller, entire car controller, the storage battery energy management system of the dispersion in the Chinese invention patent application of " 200610011555.1 "; Further particularly, described controller 7 can comprise energy management unit, Fuel Cell Control unit, energy storage equipment monitoring unit, hydric safe monitoring means, system failure monitoring unit, start control unit.
More specifically, as shown in Figure 3, the mouth of described fuel cell 1 connects the input end of described dcdc converter 21, the output head anode of described dcdc converter 21 connects the positive pole of described heavy-duty diode 22, the negative pole of described heavy-duty diode 22 connects described energy storage equipment 4 by described contactless switch 3, described dcdc converter 21 connects described controller 7 and accepts the control of described controller 7, and described dcdc converter 21 connects described operation control unit 6 and receives the power supply of described operation control unit 6.And in a conversion example of present embodiment, be with difference embodiment illustrated in fig. 3, in this variation example, the output head anode of described fuel cell 1 connects the positive pole of described heavy-duty diode 22, the negative pole of described heavy-duty diode 22 connects the input anode of described dcdc converter 21, the negative pole of output end of described fuel cell 1 directly connects the input cathode of described dcdc converter 21, and the mouth of described dcdc converter 21 directly connects described energy storage equipment 4 by described contactless switch 3.
Further, as shown in Figure 2, when described switching on and shutting down button 92 or Digiplex 93 provide actuation signal, 6 pairs of described controller 7 power supplies of described operation control unit, described controller 7 output control signals close the contactless switch as switch to contactless switch, described energy storage equipment 4 is given described high-power accessory 80 power supplies by described contactless switch 3, other devices in the described ancillary system 8 except described high-power accessory 80 (for example hydrogen supply system) are by described controller 7 power supplies, simultaneously, described controller 7 is given all composition module output signals of described ancillary system 8, thereby starts described fuel cell 1; After the startup, described contactless switch 3 keeps connected state always.Adopt such start-up mode, need not to use the subsidiary battery of additional configuration and charging with auxiliary DC/DC changer, reduced parts and corresponding circuit, improved the reliability of system, saved the space, simplified system bulk, reduced cost.
In a preference of present embodiment, as shown in Figure 4, described heavy-duty diode 22 is placed on the heat dissipation channel of described dcdc converter 21, can utilize like this air of the radiator fan that carries 2,102 2101 discharges from the air channel of described dcdc converter that described heavy-duty diode 22 is dispelled the heat.The radiator 2201(that has saved described heavy-duty diode is the aluminium fin) on radiator fan, reduced radiator volume, saved the energy, also saved simultaneously the circuit that this radiator fan is powered.Described operation control unit 6 is according to the status of electrically connecting of the start operation signal change that receives with described DCDC converter unit and controller 7.Like this, described controller 7 only is in operative condition, the high problem of system energy consumption that can not cause because of be in operative condition always when system works.
Next by in the preferred specific embodiment of the present invention System Working Principle being described, particularly, when system does not start, do not set up status of electrically connecting between described operation control unit 6 and described controller 7, the DCDC converter unit 2.When described Digiplex 93 buttons or described switching on and shutting down button 92 are depressed, described operation control unit 6 and described controller 7, DCDC converter unit 2 is set up and is electrically connected, described energy storage equipment 4 supplies power to described controller 7 by described operation control unit 6, the output signal of described controller 7 drives described contactless switch 3 and is communicated with, described energy storage equipment 4 is given described high-power accessory 80 power supplies by described contactless switch 3, other devices in the described ancillary system 8 except described high-power accessory 80 (for example hydrogen supply system) are by described controller 7 power supplies, simultaneously, described controller 7 is given all composition module output services signals of described ancillary system 8, thereby starts described fuel cell 1; Described fuel cell 1 output power is to described DCDC converter unit 2, and described controller 7 is according to described DCDC converter unit 2 outgoing currents of status data signal control of the described fuel cell 1 that receives, energy storage equipment 4, DCDC converter unit 2; Under system's normal working, the output voltage of described DCDC converter unit 2 is higher than described energy storage equipment 4 output voltages, the outgoing current of described DCDC converter unit 2 exports the compact car drive system of carrying described fuel cell power system to by described power output end 5, drive this compact car work, simultaneously described DCDC converter unit 2 is given described energy storage equipment 4 chargings, is powered to described high-power accessory 80, operation control unit 6; When compact car is in high-power motoring condition, described power output end 5 needs output high-power, large electric current, this moment, described DCDC converter unit 2 outgoing currents were not enough to meet the demands, described energy storage equipment 4 will export the compact car drive system of carrying this fuel cell power system to by described power output end 5 with described DCDC converter unit 2 common outgoing currents, drive this compact car and keep high-power motoring condition; When compact car was in braking mode, the electric energy that braking is reclaimed charged to energy storage equipment by power output end.
When needing start-up system, depress described Digiplex 93 buttons or described switching on and shutting down button 92, described operation control unit 6 is with described controller 7, when DCDC converter unit 2 is set up and is electrically connected, described operation control unit 6 output switching signals are given described controller 7, output kept power supply signal to described operation control unit 6 after described controller 7 received on-off signal, so that described operation control unit 6 keeps status of electrically connecting with described controller 7, DCDC converter unit 2; Simultaneously, the indicator lamp that described controller 7 also drives described switching on and shutting down button 92 lights, and prompt system starts; At this moment, can unclamp described Digiplex 93 buttons or described switching on and shutting down button 92.
When needing shutdown system, again depress described Digiplex 93 buttons or described switching on and shutting down button 92, described operation control unit 6 output switching signals are given described controller 7, after described controller 7 receives on-off signal, control indicator lamp flicker (the prompting shutdown on the described switching on and shutting down button 92, can unclamp button or the described switching on and shutting down button 92 of described Digiplex 93 this moment), described controller 7 is controlled simultaneously described ancillary system 8 and is quit work, then stop output and keep power supply signal to described operation control unit 6, so that described operation control unit 7 and described controller 7, the electrical connection of DCDC converter unit 2 disconnects; Whole system quits work.
When depressing described scram button 94, being electrically connected rapidly between described operation control unit 6 and described controller 7, the DCDC converter unit 2 disconnects, thereby cuts off the power supply of whole system, so that system quits work.
Described monitor display 91 obtains electric power, communication data, display system state, failure message etc. on screen from described controller 7.
More than specific embodiments of the invention are described.It will be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or modification within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (11)
1. fork truck fuel cell power system, comprise shell (90), and be arranged on fuel cell system (100) in the described shell (90), DCDC converter unit (2), contactless switch (3), energy storage equipment (4), controller (7), it is characterized in that, also comprise and be arranged on the outer power output end (5) of described shell (90), and be arranged on operation control unit (6) in the described shell (90), wherein, described contactless switch (3) is the large contactor of open type, described DCDC converter unit (2) comprises dcdc converter (21) and the heavy-duty diode (22) that is connected
Described fuel cell system (100) connects described DCDC converter unit (2), contactless switch (3), power output end (5), described controller (7) connects described fuel cell system (100), operation control unit (6), contactless switch (3), and described energy storage equipment (4) connects described controller (7), operation control unit (6), contactless switch (3).
2. fork truck fuel cell power system according to claim 1, it is characterized in that described fuel cell system (100), energy storage equipment (4), DCDC converter unit (2) are installed on the base plate of described shell (90) successively along described shell (90) direction from front to back.
3. fork truck fuel cell power system according to claim 1 and 2 is characterized in that, the installation site of described operation control unit (6) and controller (7) all is higher than the installation site of described DCDC converter unit (2) and energy storage equipment (4).
4. fork truck fuel cell power system according to claim 3 is characterized in that, described operation control unit (6) and controller (7) are installed successively along described shell (90) direction from front to back.
5. fork truck fuel cell power system according to claim 4 is characterized in that, described contactless switch (3) is installed in the side plate of the described shell of being positioned at of described base plate (90) and the zone between the described energy storage equipment (4).
6. fork truck fuel cell power system according to claim 1, it is characterized in that, also comprise the electrical isolation plate (901) that is arranged in the described shell (90), hydrogen storage system, fill valve (95), described electrical isolation plate (901) is electronic system space and gas supply space with the spatial separation of described shell (90), described fuel cell system (100), DCDC converter unit (2), contactless switch (3), energy storage equipment (4), controller (7), operation control unit (6) is positioned at described electronic system space, described hydrogen storage system, fill valve (95) is positioned at described gas supply space, and described gas supply space is positioned at a side in described electronic system space.
7. fork truck fuel cell power system according to claim 1, it is characterized in that, the mouth of the fuel cell (1) that described fuel cell system (100) comprises connects the input end of described DCDC converter unit (2), DCDC converter unit (2) connects described energy storage equipment (4) by described contactless switch (3), the mouth of described DCDC converter unit (2) also connects the high-power accessory (80) that described power output end (5) and described fuel cell system (100) comprise, the port of described energy storage equipment (4) connects the high-power accessory (80) that described power output end (5) and described fuel cell system (100) comprise by described contactless switch (3), described operation control unit (6) connects respectively described energy storage equipment (4), DCDC converter unit (2), controller (7), described controller (7) connects respectively the fuel cell that described fuel cell system (100) comprises, ancillary system (8), DCDC converter unit (2), the control end of contactless switch (3), energy storage equipment (4), wherein, described ancillary system (8) comprises described high-power accessory (80)
Described operation control unit (6) is used for receiving operation signal and is described controller (7) and DCDC converter unit (2) power supply, described controller (7) is used for receiving described operation control unit (6) and controls described contactless switch (3) according to the operating order of described operation signal generation and according to described operating order, DCDC converter unit (2), ancillary system (8), described controller (7) also are used for measuring the state parameter of the fuel cell (1) that described fuel cell system (100) comprises, measure the state parameter of described energy storage equipment (4), measure the state parameter of described ancillary system, with the status data that receives described DCDC converter unit (2).
8. according to claim 1 or 7 described fork truck fuel cell power systems, it is characterized in that, the mouth of described fuel cell (1) connects the input end of described dcdc converter (21), the output head anode of described dcdc converter (21) connects the positive pole of described heavy-duty diode (22), the negative pole of described heavy-duty diode (22) connects described energy storage equipment (4) by described contactless switch (3), described dcdc converter (21) connects described controller (7) and accepts the control of described controller (7), and described dcdc converter (21) connects described operation control unit (6) and receives the power supply of described operation control unit (6).
9. according to claim 1 or 7 described fork truck fuel cell power systems, it is characterized in that described operation control unit (6) changes status of electrically connecting with described DCDC converter unit and controller (7) according to the start operation signal that receives.
10. according to claim 1 or 7 described fork truck fuel cell power systems, it is characterized in that the status data of described DCDC converter unit (2) comprises DCDC received current, DCDC input voltage.
11. fork truck fuel cell power system according to claim 1 is characterized in that, also comprise following any or appoint multiple device:
-hydric safe system, described hydric safe system comprise the sensor that is placed on respectively in electronic control system space and the gas supply space, and described sensor connects described controller (7),
-monitor display (91), described monitor display (91) connects described controller (7),
-switching on and shutting down button (92), described switching on and shutting down button (92) connect respectively described operation control unit (6) and controller (7),
-Digiplex (93), described Digiplex (93) connects described operation control unit (6) with wireless mode ,-scram button (94), described scram button (94) connects described operation control unit (6).
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| CN201210376341.XA CN102874127B (en) | 2012-09-28 | 2012-09-28 | Fuel cell power system for forklift |
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| CN201210376341.XA CN102874127B (en) | 2012-09-28 | 2012-09-28 | Fuel cell power system for forklift |
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| CN102874127A true CN102874127A (en) | 2013-01-16 |
| CN102874127B CN102874127B (en) | 2015-07-15 |
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Cited By (1)
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| WO2014048253A1 (en) * | 2012-09-28 | 2014-04-03 | 引峰新能源科技（上海）有限公司 | Compact-type fuel cell power supply system |
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| CN102874127B (en) | 2015-07-15 |
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Application publication date: 20130116 Assignee: Intel Fuel Cell Company Assignor: Pioneer new energy technology (Shanghai) Co., Ltd. Contract record no.: 2018990000359 Denomination of invention: Improved fuel cell power system for forklifts Granted publication date: 20150715 License type: Exclusive License Record date: 20190103 |
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