CN107394234A - The dynamical system and the vehicles of fuel cell - Google Patents
The dynamical system and the vehicles of fuel cell Download PDFInfo
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- CN107394234A CN107394234A CN201710476466.2A CN201710476466A CN107394234A CN 107394234 A CN107394234 A CN 107394234A CN 201710476466 A CN201710476466 A CN 201710476466A CN 107394234 A CN107394234 A CN 107394234A
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- 238000005183 dynamical system Methods 0.000 title claims abstract description 52
- 239000000446 fuel Substances 0.000 title claims abstract description 36
- 239000002826 coolant Substances 0.000 claims abstract description 180
- 239000000110 cooling liquid Substances 0.000 claims abstract description 45
- 238000001816 cooling Methods 0.000 claims description 27
- 239000007788 liquid Substances 0.000 claims description 26
- 230000008859 change Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 description 29
- 230000008569 process Effects 0.000 description 25
- 239000007789 gas Substances 0.000 description 14
- 238000006243 chemical reaction Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000005265 energy consumption Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 239000012528 membrane Substances 0.000 description 6
- 230000033228 biological regulation Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 238000001802 infusion Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000011217 control strategy Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000003487 electrochemical reaction Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000036647 reaction Effects 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000000306 recurrent effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Sustainable Energy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Fuel Cell (AREA)
Abstract
This application provides a kind of dynamical system of fuel cell and the vehicles.The dynamical system includes：Pile, including coolant inlet and cooling liquid outlet；Heat abstractor, one end connects with the coolant inlet of pile, the other end connects with the cooling liquid outlet of pile, heat abstractor includes coolant conveying power-equipment and the heat exchange unit connected with coolant conveying power-equipment, heat exchange unit includes multiple heat exchanger channels in parallel, each heat exchanger channels are used to cool to the coolant of pile output, and switch is provided with the cooling liquid outlet of each heat exchanger channels.The dynamical system can reduce the temperature inertness fluctuation of pile, and the temperature and the temperature difference of pile can be adjusted in real time.
Description
Technical field
The application is related to fuel cell field, in particular to the dynamical system and the vehicles of a kind of fuel cell.
Background technology
Fuel cell car (FCV) is a kind of automobile of the electric energy as power caused by on-vehicle fuel device.Mesh
Before, that be widely used in fuel cell car is Proton Exchange Membrane Fuel Cells (PEMFC).Proton Exchange Membrane Fuel Cells automobile
Operation principle be：Fuel hydrogen distributes the anode-side in membrane electrode along fuel cell pile anode plate runner, anode-catalyzed
Electronics and proton are dissociated into the presence of agent, electronics reaches negative electrode through external circuit, and proton reaches negative electrode directly through membrane electrode, with
Oxygen reaction generation water in cathode reaction gas.The product of this process is electric energy, Re Heshui.Wherein electric energy driving electric machine work
Make, motor is again with the mechanical transmission structure in electrical automobile, and then the walking machine structure such as propons (or back axle) with electrical automobile
Work, so as to drive electric automobile to advance.Heat and water are directly discharged or comprehensively utilized by heat-exchange device.
Reaction heat, which is produced, for fuel cell power system, when pile generates electricity accounts for the 30%~60% of gross energy,
It is most of to need to carry out by heat dissipation equipment in heat energy in addition to needing to maintain pile reaction temperature and naturally lost on a small quantity
The forced convertion discharge of System and Surroundings, if reaction heat production is uneven with dissipated heat, can cause stack temperature unstable.And
The performance of fuel cell system has close relationship with stack temperature.The raising of stack temperature will increase the reactivity of pile,
So as to improve the generating efficiency of fuel cell.But pile life-span in high temperature environments that works long hours can be significantly shorter, typically
In the case of battery running temperature be no more than 80 DEG C.Pile in cryogenic conditions, live by ohmic internal resistance and polarization resistance increase, reaction
Property substantially reduce so that the power density of pile, reaction efficiency decline.Especially, when dynamical system is in startup below freezing
When, fuel cell reaction generation water is likely to form solid ice, blocks porous electrode and gas flow, hinders the biography of reaction medium
It is defeated, simultaneously because the volumetric expansion effect at membrane electrode icing, destroys porous electrode structure, reduce fuel cell security and make
Use the life-span.Thus, it is ensured that fuel cell has good power output performance, reliable security and longer use longevity
Life, it is necessary to establish effective thermal management policy, improve fuel cell power system running temperature to operating mode and the adaptability of environment.
At present, Proton Exchange Membrane Fuel Cells power train in vehicle application system uses structure as shown in Figure 1, i.e. hydrogen and sky more
Gas/oxygen enters pile 1' and electrochemical reaction occurs, and heat flows through pile by coolant as heat catalysis caused by this process
Coolant flow field take out of, entered by out-pile coolant circuit after heat exchanger 2' and air carry out heat exchange and enter back into pile
Persistent loop is completed, during this, coolant pump 3' is as conveying power source, and tank for coolant 4' is as the setting of fluid infusion purposes.
To ensure that pile operation is under preferable temperature conditionss, said process typically opening fan (in heat exchanger)
Stop associated with stack temperature, i.e., when stack temperature is higher than design temperature, fan is opened, and coolant and air-flow, which are formed, to be forced pair
Flow heat dissipation, when stack temperature is less than design temperature, fan is closed down, and heat loss through convection stops.This technology exists in actual applications
Problems with：
(1) the running temperature fluctuation of pile is larger, and main cause can mainly be summarized as following three aspect：First, temperature feedback
Temperature fluctuation caused by TEMP hysteresis caused by the measurement process of device (thermocouple)；Second, the specific heat capacity of coolant itself
Temperature inertness caused by thermotonus hysteresis caused by big fluctuates, third, the machinery that fan blade rotates in fan shutdown process is used to
Property.This problem is for the less fuel cell system of power grade, and the capacity of its coolant is small, and fan blade is small, these two aspects
Caused inertial fluctuation relative can weaken, and the bigger system of power grade will be bright using its temperature inertness fluctuation of above control mode
It is aobvious.The operation of stack temperature fluctuates schematic diagram as shown in Fig. 2 the figure includes two X-Y schemes, and the abscissa of the two figures is equal
It is the time, wherein, a figure is the logic chart that the on and off of heat exchanger changes over time, and in ordinate, logical zero represents heat exchange
The closing of device, logical one represent the unlatching of heat exchanger；Another figure is the change schematic diagram of the temperature of pile over time, is indulged
Coordinate be pile temperature, T0Represent the predetermined temperature of pile.
Stack temperature fluctuation can have following harm when larger：A. due to moisture many places in heap in pile normal course of operation
In saturation state, when stack temperature fluctuates, vaporous water is easy to condense liquefaction, adds the risk of pile water logging；B. temperature
The reduction of local temperature homogeneity is caused in wave process, the short time influences performance, life time decay is caused when long.
(2) pile can not adapt to low temperature environment.When power system operation is in low temperature environment, even if electricity generation module has insulation
Measure, but because coolant is constantly in recurrent state when pile is run, and connect with environment when coolant passes through heat exchanger
Contacting surface product is very big, and environment temperature is low in addition, causes system external rate of heat dispation larger, in this case, causes the production of pile
Hot speed is less than system from rate of heat dispation so that stack temperature persistently drops and (it is deficient to be referred to as temperature), until can not run.Vehicle
Travel speed is faster, environment temperature is lower, and the deficient risk of temperature is bigger.Especially, when pile is in start-up course, pile heat production speed
Rate is small, the deficient risk aggravation of temperature, causes pile not start normally.
(3) it cannot be guaranteed that the operation temperature difference of pile.During pile normal operation, moisture caused by course of reaction is with reaction in heap
Thing is distributed along flow field, and in order to avoid water logging or low humidity go out the appearance of overdrying phenomenon at high humility in heap, pile need to have suitable
The suitable temperature difference maintains pile inner gaseous water balance.The thermal management algorithm of prior art does not possess temperature difference adjusting function.
In a word, in existing dynamical system, thermal management technology implementation process has that stack temperature is unstable, the temperature difference can not be adjusted
The problems such as control and environmental suitability difference, there is considerable influence to the performance of pile.
The content of the invention
The main purpose of the application is the dynamical system and the vehicles for providing a kind of fuel cell, to solve existing skill
The problem of pile temperature difference can not regulate and control in art.
To achieve these goals, according to the one side of the application, there is provided a kind of dynamical system of fuel cell, should
Dynamical system includes：Pile, including coolant inlet and cooling liquid outlet；Heat abstractor, one end and the coolant of above-mentioned pile
Entrance connects, and the other end connects with the cooling liquid outlet of above-mentioned pile, and above-mentioned heat abstractor includes coolant conveying power-equipment
And the heat exchange unit connected with above-mentioned coolant conveying power-equipment, above-mentioned heat exchange unit lead to including multiple heat exchange in parallel
Road, each above-mentioned heat exchanger channels are used to cool to the coolant of above-mentioned pile output, and the coolant of each above-mentioned heat exchanger channels goes out
Switch is provided with mouthful.
Further, each above-mentioned heat exchanger channels include a heat exchanger, and above-mentioned heat exchanger is used for the output of above-mentioned pile
Coolant is cooled, and above-mentioned switch is provided with the cooling liquid outlet of each above-mentioned heat exchanger.
Further, above-mentioned heat exchange unit includes a heat exchanger, and above-mentioned heat exchanger includes：Housing；Multiple above-mentioned heat exchange
Passage, be arranged in order and be arranged at intervals along the short transverse of above-mentioned housing, each above-mentioned heat exchanger channels include at least one heat exchanger tube,
At least one fan and a liquid outlet set close to each above-mentioned heat exchanger tube, each above-mentioned heat exchanger tube are set with each said fans
Put in above-mentioned housing, each said fans are used for cooling to the coolant in above-mentioned heat exchanger tube, and aforesaid liquid outlet is set
On above-mentioned housing, aforesaid liquid outlet is the cooling liquid outlet of above-mentioned heat exchanger channels.
Further, above-mentioned heat exchanger also includes a coolant inlet, and above-mentioned heat exchanger leads to including three above-mentioned heat exchange
Road, it is respectively：First heat exchanger channels, set close to above-mentioned housing, above-mentioned first heat exchanger channels include two above-mentioned heat exchanger tubes with
Two said fans, length direction of two said fans along above-mentioned heat exchanger tube are arranged at intervals, and two above-mentioned heat exchanger tubes are along above-mentioned
The short transverse of housing is arranged at intervals, and each said fans are set close to two above-mentioned heat exchanger tubes；Second heat exchanger channels, are arranged on
The side of the remote above-mentioned housing of the first heat exchanger channels is stated, above-mentioned second heat exchanger channels are included on an above-mentioned heat exchanger tube and two
Fan is stated, length direction of two said fans along above-mentioned heat exchanger tube is arranged at intervals；3rd heat exchanger channels, it is arranged on above-mentioned second
The side of remote above-mentioned first heat exchanger channels of heat exchanger channels, and the structure of above-mentioned 3rd heat exchanger channels and the above-mentioned first heat exchange are logical
Road it is identical.
Further, the fin being arranged on each above-mentioned heat exchanger tube is also included in each above-mentioned heat exchanger channels.
Further, above-mentioned coolant conveying power-equipment connects with the coolant inlet of above-mentioned pile, above-mentioned heat exchange list
First cooling liquid outlet with above-mentioned pile connects.
Further, above-mentioned coolant conveying power-equipment connects with the cooling liquid outlet of above-mentioned pile, above-mentioned heat exchange list
First coolant inlet with above-mentioned pile connects.
Further, above-mentioned heat exchanger is Air-cooled Heat Exchanger.
Further, above-mentioned switch is magnetic valve.
Further, above-mentioned coolant conveying power-equipment is coolant pump.
Further, above-mentioned heat abstractor also includes：Flow control valve, it is arranged on above-mentioned pile and is conveyed with above-mentioned coolant
On the pipeline of the cooling liquid outlet connection of power-equipment.
Further, above-mentioned heat abstractor also includes：Coolant storage device, with above-mentioned coolant convey power-equipment and
Coolant pipeline connection between above-mentioned heat exchange unit.
Further, above-mentioned coolant storage device is tank for coolant.
According to the another aspect of the application, there is provided a kind of vehicles, include the dynamical system of fuel cell, the fuel
The dynamical system of battery is any above-mentioned dynamical system.
Using the technical scheme of the application, the heat exchange unit for including multiple heat exchanger channels is set in dynamical system, and
The cooling liquid outlet of each heat exchanger channels sets switch (i.e. coolant circuit switch), opening and closing by switch, can be with
The circulation volume and flow of the coolant entered in pile are controlled, and then realizes the different radiatings of different system conditions
The temperature of pile, temperature difference stable regulation under load.
When system operation is in low-power or/and compared with low ambient temperature, radiating load is smaller, and it is single to open lesser amt heat exchange
The coolant circuit of member switchs, and the coolant in remaining heat exchange unit do not opened is not involved in circulating, and it is cold that this process participates in pile
But the less operation stability that can reduce temperature inertness fluctuation, increase temperature of coolant capacity；When system in relatively high power or
(and) compared with being run under high environment temperature when, radiating load it is larger, open a greater number heat exchange unit coolant circuit switch it is cold
But fluid-in-flux is larger, and larger with the contact area of environment, is advantageous to improve radiating efficiency；It is cooled in system-down pile
Cheng Zhong, pile stops output electric energy and heat energy, in order to ensure pile normal boot-strap next time, it usually needs pile cooled,
If a large amount of coolants of system are involved in circulation temperature lowering, temperature-lowering load is mainly coolant rather than pile, and this process is actual to be needed
It is relatively large to cool down load, cool time is longer, and energy consumption is larger, if only entering circulation pile using a small amount of coolant, i.e.,
Most switch to be closed, pile cooling is completed using lesser amt heat exchange unit, remaining heat exchange unit is only used as liquid storage effect,
The coolant wherein stored is not involved in circulating, and cooling load is smaller, is advantageous to accelerate the cooling rate of pile, reduces process energy
Consumption.
In addition, under different operating modes, corresponding pile heat production load is different, in order to control the pile temperature difference, it is desirable to adjusts immediately
Coolant rate is saved, meanwhile, the process for regulating and controlling stack temperature is related to the regulation of coolant circuit switch, and this process passes through to returning
The influence of roadlock power causes the change of coolant rate, so as to influence the pile temperature difference.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its illustrate be used for explain the application, do not form the improper restriction to the application.In the accompanying drawings：
Fig. 1 shows the structural representation of the dynamical system of a proton exchanging film fuel battery of the prior art；
Fig. 2 shows the running temperature schematic diagram of pile in the dynamical system in Fig. 1；
Fig. 3 shows the structural representation of the dynamical system for the fuel cell that a kind of embodiment of the application provides；
Fig. 4 shows the structural representation of the dynamical system for the fuel cell that another embodiment of the application provides；With
And
Fig. 5 shows the structural representation of the heat exchanger in a kind of embodiment of the application.
Wherein, above-mentioned accompanying drawing marks including the following drawings：
1', pile；2', heat exchanger；3', coolant pump；4', tank for coolant；1st, pile；2nd, heat exchange unit；3rd, coolant
Convey power-equipment；4th, coolant storage device；5th, flow control valve；20th, heat exchanger；21st, switch；22nd, housing；23rd, exchange heat
Pipe；24th, fan；25th, liquid outlet；26th, fin；200th, heat exchanger channels；201st, the first heat exchanger channels；202nd, the second heat exchange is logical
Road；203rd, the 3rd heat exchanger channels.
Embodiment
It is noted that described further below is all exemplary, it is intended to provides further instruction to the application.It is unless another
Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
As background technology is introduced, the pile temperature difference of the prior art can not regulate and control, in order to solve technology as above
Problem, present applicant proposes a kind of dynamical system of fuel cell and the vehicles.
In a kind of typical embodiment of the application, there is provided a kind of dynamical system of fuel cell, such as Fig. 3 and Fig. 4
Shown, the dynamical system includes pile 1 and heat abstractor, wherein, pile includes coolant inlet and cooling liquid outlet；Radiating dress
The one end put connects with the coolant inlet of above-mentioned pile 1, and the other end connects with the cooling liquid outlet of above-mentioned pile 1, above-mentioned to dissipate
Thermal includes coolant conveying power-equipment 3 and the heat exchange unit 2 connected with above-mentioned coolant conveying power-equipment, above-mentioned
Heat exchange unit 2 includes multiple heat exchanger channels 200 in parallel, and each heat exchanger channels 200 are used to enter the coolant of above-mentioned pile 1 output
Row cools, and switch 21 is provided with the cooling liquid outlet of each above-mentioned heat exchanger channels 200.
In the dynamical system of the application, the heat exchange unit for including multiple heat exchanger channels is set, and in each heat exchanger channels
Cooling liquid outlet sets switch (i.e. coolant circuit switchs), opening and closing by switch, can control and enter pile
In coolant circulation volume and flow, and then realize the temperature of pile under the different radiating loads of different system conditions
Degree, temperature difference stable regulation.
When system operation is in low-power or/and compared with low ambient temperature, radiating load is smaller, and it is single to open lesser amt heat exchange
The coolant circuit of member switchs, and the coolant in remaining heat exchange unit do not opened is not involved in circulating, and it is cold that this process participates in pile
But the less operation stability that can reduce temperature inertness fluctuation, increase temperature of coolant capacity；When system relatively high power and/
Or during compared with being run under high environment temperature, radiating load is larger, the coolant circuit switch cooling of a greater number heat exchange unit is opened
Fluid-in-flux is larger, and larger with the contact area of environment, is advantageous to improve radiating efficiency；In system-down pile cooling procedure
In, pile stops output electric energy and heat energy, in order to ensure pile normal boot-strap next time, it usually needs pile cools, such as
The a large amount of coolants of fruit system are involved in circulation temperature lowering, then temperature-lowering load is mainly coolant rather than pile, and this process is actually needed
Cooling load is relatively large, and cool time is longer, and energy consumption is larger, if only entering circulation pile using a small amount of coolant, that is, closes
Most switch is closed, pile cooling is completed using lesser amt heat exchange unit, remaining heat exchange unit is only used as liquid storage effect, its
The coolant of middle storage is not involved in circulating, and cooling load is smaller, is advantageous to accelerate the cooling rate of pile, reduces process energy consumption.
In addition, under different operating modes, corresponding pile heat production load is different, in order to control the pile temperature difference, it is desirable to adjusts immediately
Coolant rate is saved, meanwhile, the process for regulating and controlling stack temperature is related to the regulation of coolant circuit switch, and this process passes through to returning
The influence of roadlock power causes the change of coolant rate, so as to influence the pile temperature difference.
In a kind of embodiment of the application, as shown in figure 3, each above-mentioned heat exchanger channels 200 include a heat exchanger 20, it is above-mentioned
Heat exchanger 20 is used to cool to the coolant of above-mentioned pile 1 output, is set on the cooling liquid outlet of each above-mentioned heat exchanger 20
There is switch 21.
In another embodiment of the application, as shown in figure 4, above-mentioned heat exchange unit 2 includes a heat exchanger 20, it is above-mentioned to change
Hot device 20 includes housing 22 and multiple above-mentioned heat exchanger channels 200, as shown in figure 5, multiple above-mentioned heat exchanger channels are along above-mentioned housing 22
Short transverse be arranged in order and be arranged at intervals, each above-mentioned heat exchanger channels 200 include at least one heat exchanger tube 23, close to each above-mentioned
At least one fan 24 and a liquid outlet 25 that heat exchanger tube 23 is set, each above-mentioned heat exchanger tube 23 are set with each said fans 24
Put in above-mentioned housing 22, each said fans 24 are used for cooling to the coolant in above-mentioned heat exchanger tube 23, and aforesaid liquid goes out
Mouth 25 is arranged on above-mentioned housing 22, and aforesaid liquid outlet 25 is the cooling liquid outlets of above-mentioned heat exchanger channels, and each coolant goes out
Mouth is provided with a switch.At a temperature of different operating conditions and varying environment, by adjustment switch on and close and
The operation quantity of fan, to adjust coolant rate and radiating air quantity, stability and environment that raising stack temperature is adjusted can be made
Adaptability etc..
In a kind of specific embodiment, as shown in figure 5, above-mentioned heat exchanger 20 also includes a coolant inlet, it is above-mentioned to change
Hot device includes three above-mentioned heat exchanger channels, and respectively the first heat exchanger channels 201, the second heat exchanger channels 202 and the 3rd heat exchange are logical
Road 203, the first heat exchanger channels 201 are set close to above-mentioned housing 22, and above-mentioned first heat exchanger channels 201 include two above-mentioned heat exchanger tubes
23 and two said fans 24, length direction of two said fans 24 along above-mentioned heat exchanger tube 23 is arranged at intervals, and two above-mentioned to change
Short transverse of the heat pipe 23 along above-mentioned housing 22 is arranged at intervals, and each said fans 24 are set close to two above-mentioned heat exchanger tubes 23；The
Two heat exchanger channels 202 are arranged on the side of the remote above-mentioned housing 22 of above-mentioned first heat exchanger channels 201, above-mentioned second heat exchanger channels
202 include an above-mentioned heat exchanger tube 23 and two said fans 24, length side of two said fans 24 along above-mentioned heat exchanger tube 23
To interval setting；3rd heat exchanger channels 203 are arranged on remote above-mentioned first heat exchanger channels 201 of above-mentioned second heat exchanger channels 202
Side, and the structure of above-mentioned 3rd heat exchanger channels 203 is identical with above-mentioned first heat exchanger channels 201.It is specific worked
Journey is as follows：
When system operation is in low-power and/or compared with low ambient temperature, radiating load is smaller, opens first coolant and goes out
The flow switch of the switch of mouth (liquid outlet 25 being correspondingly arranged with the first heat exchanger channels 201), two other cooling liquid outlet
Switch close, control the first heat exchanger channels 201 in two fans be in enables state, this process participate in pile cooling it is cold
But liquid capacity is less, and fan operation quantity is also few, can reduce temperature inertness fluctuation, increases the operation stability of temperature.
When system operation is in mid power and/or compared with medium temperature environment temperature, when radiating load is moderate, opening second is cold
But the switch of liquid outlet, the switch at two other cooling liquid outlet are closed, and the first heat exchanger channels of control 201 lead to the second heat exchange
Fan in road 202, which is in, enables state.
When system operation is in relatively high power and/or compared with high environment temperature, when radiating load is larger, opening second cools down
The switch of liquid outlet, the switch at two other cooling liquid outlet are closed, and control the fan in three heat exchanger channels to be in opening
Use state；This process cooling fluid-in-flux is larger and larger with the contact area of environment, is advantageous to improve radiating efficiency.
In system-down pile cooling procedure, pile stops output electric energy and heat energy, subnormal under pile in order to ensure
Start, it usually needs pile cools, if a large amount of coolants of system are involved in circulation temperature lowering, temperature-lowering load is mainly
Coolant rather than pile, this process are actually needed that cooling load is relatively large, and cool time is longer, and energy consumption is larger, if only sharp
Enter circulation pile with a small amount of coolant, open the first cooling liquid outlet (liquid being correspondingly arranged with the first heat exchanger channels 201
The flow switch of the switch of outlet 25), the switch of two other cooling liquid outlet are closed, controlled in the first heat exchanger channels 201
Two fans, which are in, enables state, and wherein bottom most portion coolant is not involved in circulating in heat-exchanger rig, is advantageous to accelerate pile
Cooling rate, reduce process energy consumption.
The control mode in dynamical system representated by Fig. 5 is not limited only to above-mentioned control mode, can also use other
Control mode, for example, when system operation is in mid power and/or compared with medium temperature environment temperature, when radiating load is moderate, open
The switch of switch and second cooling liquid outlet at first each cooling liquid outlet, the switch at another cooling liquid outlet close
Close, control the fan in the first heat exchanger channels 201 and the second heat exchanger channels 202 to be in and enable state.When system operation is in larger
Power and/or compared with high environment temperature, when radiating load is larger, opens the switch of three cooling liquid outlets, controls three heat exchange
Fan in passage is in enabling state；This process cooling fluid-in-flux is larger and larger with the contact area of environment, favorably
In raising radiating efficiency.
In order to which the coolant preferably exchanged in heat pipe is cooled, in a kind of embodiment of the application, as shown in figure 5,
Each above-mentioned heat exchanger channels 200 also include the fin 26 being arranged on each above-mentioned heat exchanger tube 23, that is, are arranged on the outer wall of heat exchanger tube
On.
In said system, the entrance of the heat exchange unit in heat-sink unit can be connected directly with the cooling liquid outlet of pile,
Directly it can also be connected with the coolant inlet of pile, the cooling that the entrance that coolant conveys power-equipment can directly with pile
Liquid outlet, it can also be connected with the coolant inlet of pile, i.e., heat exchange unit can convey power-equipment with coolant
Location swap.The outlet of the entrance of heat exchange unit in figure and the coolant of pile.Those skilled in the art can basis
Actual conditions set heat exchange unit and coolant conveying power-equipment 3 in place.
In above-mentioned dynamical system, the heat exchange unit for including multiple heat exchangers is set, and in the coolant of each heat exchanger
Outlet sets switch, and opening and closing by switch can control the flow of the coolant entered in pile, and then adjust
The temperature difference of pile, when enter pile in coolant it is more when, the temperature difference of pile is smaller, when enter pile in coolant get over
When few, the temperature difference of pile is bigger.Also, the opening by being switched at heat exchanger exit and closing, the temperature of pile can also be controlled
Degree, when dynamical system starts in the environment of low temperature, closes most switch so that coolant is changed by small number of
Hot device, reduce and start speed with external environment contact area, lifting pile heating rate, raising system；When environment temperature is higher
When, open most or all of switch so that coolant is by a greater number heat exchanger, and then coolant and atmosphere
Area is larger, lifts the radiating efficiency of coolant；During system-down, most switch is closed, utilizes lesser amt
Heat exchanger completes pile cooling, and only a small amount of coolant participates in pile circulation cooling, is advantageous to pile fast cooling.
In a kind of embodiment of the application, as shown in figure 3, above-mentioned coolant conveys the cold of power-equipment 3 and above-mentioned pile 1
But liquid outlet, above-mentioned heat exchange unit 2 connect with the coolant inlet of above-mentioned pile 1.Coolant convey power-equipment 3 with it is upper
The coolant inlet connection of pile 1 is stated, above-mentioned heat exchange unit 2 connects with the cooling liquid outlet of above-mentioned pile 1.
In another embodiment of the application, the cooling liquid outlet of above-mentioned coolant conveying power-equipment 3 and above-mentioned pile 1
Connection, above-mentioned heat exchange unit 2 connect with the coolant inlet of above-mentioned pile 1.
In order to further ensure that the heat transfer effect of heat exchange unit, in a kind of embodiment of the application, above-mentioned heat exchanger 20 is
Air-cooled Heat Exchanger.
Can be of the prior art any but the heat exchanger in the application is not limited to above-mentioned air-cooled heat exchanger
Feasible heat exchanger, those skilled in the art can select suitable heat exchanger according to actual conditions.
In order to further facilitate the switch of each heat exchanger, in a kind of embodiment of the application, as shown in figure 3, above-mentioned open
It is magnetic valve to close 21.Certainly, the switch in the application is not limited to above-mentioned switch, its can be it is of the prior art it is any can
Capable switch, those skilled in the art can select suitable switch according to actual conditions.
In the another embodiment of the application, as shown in figure 3, above-mentioned coolant conveying power-equipment 3 is coolant pump, should
Coolant pump may further ensure that the smooth circulation of coolant, when pile operation power is larger, increase the fortune of coolant pump
Rotational speed rate, the coolant rate that increase enters in pile, when pile operation power is smaller, exploitation speed is reduced, reduces and enters
The coolant rate of pile, the so further real-time ensuring list heap temperature difference run on reasonable interval.
In order to further control the flow into the coolant in pile, in a kind of embodiment of the application, such as Fig. 3 institutes
Show, above-mentioned heat abstractor also includes flow control valve 5, and flow control valve 5 is arranged on above-mentioned pile 1 and the conveying of above-mentioned coolant is dynamic
On the pipeline of the cooling liquid outlet connection of power equipment 3.
In another embodiment of the application, as shown in figure 3, above-mentioned heat abstractor also includes coolant storage device 4, it is cold
But liquid storage device 4 conveys the coolant pipeline between power-equipment 3 and above-mentioned heat exchange unit 2 with above-mentioned coolant and connected.It is cold
But liquid storage device 4 provides fluid infusion and liquid storage guarantee for coolant.
In a kind of specific embodiment of the application, above-mentioned coolant storage device is tank for coolant.
Specifically, above-mentioned coolant storage device is not limited to above-mentioned tank for coolant, and coolant storage device can be with
It is any device that can store coolant of the prior art, it is suitable that those skilled in the art can select according to actual conditions
Equipment as coolant storage device.
In another embodiment of the application, above-mentioned pile also includes cathode inlet and anode inlet, above-mentioned dynamical system
Also include cathode gas feedway and anodic gas feedway, cathode gas feedway connects with above-mentioned cathode inlet；
Anodic gas feedway connects with above-mentioned anode inlet.
In the typical embodiment of another kind of the application, there is provided a kind of vehicles, include the power of fuel cell
System, the dynamical system of above-mentioned fuel cell is any above-mentioned dynamical system.
The vehicles are due to above-mentioned dynamical system so that the vehicles more more stable can be transported safely
OK.
In order that the technical scheme of the application can clearly be understood by obtaining those skilled in the art, below with reference to tool
The embodiment of body illustrates the technical scheme of the application.
Embodiment
Adjusted as shown in figure 3, the dynamical system of fuel cell includes pile 1, heat abstractor, coolant storage device 4, flow
Save valve 5, cathode gas feedway and anodic gas feedway (not shown).
Pile 1 includes cathode inlet, anode inlet, coolant inlet and cooling liquid outlet；One end of heat abstractor with it is upper
The coolant inlet connection of pile 1 is stated, the other end connects with the cooling liquid outlet of above-mentioned pile 1, and above-mentioned heat abstractor includes cold
But liquid conveying power-equipment 3 and the heat exchange unit 2 connected with above-mentioned coolant conveying power-equipment, above-mentioned heat exchange unit 2 wrap
Include multiple heat exchangers 20 in parallel, above-mentioned heat exchanger 20 is used to cool to the coolant of above-mentioned pile 1 output, each above-mentioned to change
Switch 21 is provided with the cooling liquid outlet of hot device 20.And switch is magnetic valve, heat exchanger is Air-cooled Heat Exchanger, above-mentioned cooling
Liquid conveying power-equipment 3 is coolant pump.Cathode gas feedway connects with above-mentioned cathode inlet；Anodic gas feedway
Connected with above-mentioned anode inlet.
Coolant pipe between coolant storage device 4 and above-mentioned coolant conveying power-equipment 3 and above-mentioned heat exchange unit 2
Line connects, and is tank for coolant.
Flow control valve 5 is arranged on what above-mentioned pile 1 connected with the cooling liquid outlet of above-mentioned coolant conveying power-equipment 3
On pipeline.
The course of work of the dynamical system includes：
Hydrogen (anodic gas) and air (cathode gas) respectively enter pile by electrochemical reaction produce electricity, heat and its
Water byproduct, electric energy discharge pile by load consumption, water with anode exhaust gas and cathode exhaust gas, and coolant pump is that coolant circulation carries
For power, coolant enters in pile, and the torrid zone is gone out into pile, and enters in the heat exchanger of the heat exchange unit in heat abstractor, with
Air is continuously circulated into pile again after carrying out heat exchange.Heat exchange unit includes multiple air-cooled heat exchanger parallel combinations,
The cooling liquid outlet of each heat exchanger is provided with magnetic valve, and electricity is entered back into by controlling the opening of magnetic valve to be controlled with closing
The flow of the coolant of heap, and then control the temperature difference in pile.Tank for coolant provides fluid infusion and liquid storage guarantee for coolant.Flow
Regulating valve is used for adjusting the flow into the coolant in pile, and then adjusts the temperature difference in pile.
(1) control of pile running temperature fluctuation
When system operation is in low-power or/and compared with low ambient temperature, radiating load is smaller, and it is single to open lesser amt heat exchange
The coolant circuit of member switchs, and the coolant in remaining heat exchange unit do not opened is not involved in circulating, and it is cold that this process participates in pile
But the less operation stability that can reduce temperature inertness fluctuation, increase temperature of coolant capacity.
(2) pile temperature difference control strategy
Generally, the rate of heat production of pile is depended in pile power output, for certain rate of heat production, pile temperature
The flow reverse correlation of difference and coolant, coolant rate is bigger, and the pile temperature difference is smaller, and coolant rate is smaller, the pile temperature difference
It is bigger.Therefore, this programme implementation process under different running statuses (startup, specified, peak value, shutdown etc.) is needed to the pile temperature difference
In real time during regulation, it is only necessary to by the frequency or coolant pump outlet regulating valve opening that adjust coolant pump.
(3) operating temperature control strategy
The heat balance that pile running temperature depends on pile heat production and system external radiates.Using this programme temperature adjustment
Method is：The pile start-up course in low temperature environment, coolant are reduced and external environment contact surface by lesser amt heat exchanger
Product, pile heating rate is lifted, improve system and start speed；When environment temperature is higher, coolant is exchanged heat by a greater number
Device, coolant and atmosphere area are larger, improving heat radiation efficiency.
As can be seen from the above description, the application the above embodiments realize following technique effect：
1), in the dynamical system of the application, the heat exchanger channels for including multiple heat exchanger channels are set, and in each heat exchanger channels
Cooling liquid outlet switch is set, opening and closing by switch, the flow of the coolant entered in pile can be controlled,
And then adjust pile the temperature difference, when enter pile in coolant it is more when, the temperature difference of pile is smaller, when enter pile in
When coolant is fewer, the temperature difference of pile is bigger.Also, the opening switched by heat exchanger channels exit and closing, it can also control
The temperature of pile processed, when dynamical system starts in the environment of low temperature, close most switch so that coolant by compared with
The heat exchanger channels of small number, reduce and start speed with external environment contact area, lifting pile heating rate, raising system；When
When environment temperature is higher, most or all of switch is opened so that coolant passes through a greater number heat exchanger channels, Jin Erleng
But liquid and atmosphere area are larger, lift the radiating efficiency of coolant；During system-down, most open is closed
Close, complete pile cooling using lesser amt heat exchanger channels, only a small amount of coolant participates in pile circulation cooling, is advantageous to pile
Fast cooling；Also, when system operation is in low-power or/and compared with low ambient temperature, radiating load is smaller, opens lesser amt
The switch of heat exchange unit, the coolant in remaining heat exchange unit do not opened are not involved in circulating, and this process participates in pile cooling
The less operation stability that can reduce temperature inertness fluctuation, increase temperature of coolant capacity.
2), the vehicles of the application are due to above-mentioned dynamical system so that the vehicles can be with more stable peace
Run entirely.
The preferred embodiment of the application is the foregoing is only, is not limited to the application, for the skill of this area
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent substitution, improvement etc., should be included within the protection domain of the application.
Claims (14)
1. a kind of dynamical system of fuel cell, it is characterised in that the dynamical system includes：
Pile (1), including coolant inlet and cooling liquid outlet；And
Heat abstractor, one end connect with the coolant inlet of the pile (1), and the other end and the coolant of the pile (1) go out
Mouth connection, the heat abstractor include coolant conveying power-equipment (3) and connected with coolant conveying power-equipment (3)
Logical heat exchange unit (2), the heat exchange unit (2) include multiple heat exchanger channels (200) in parallel, each heat exchanger channels
(200) it is used to cool to the coolant of the pile (1) output, on the cooling liquid outlet of each heat exchanger channels (200)
It is provided with switch (21).
2. dynamical system according to claim 1, it is characterised in that each heat exchanger channels (200) include a heat exchange
Device (20), the heat exchanger (20) are used to cool to the coolant of the pile (1) output, each heat exchanger (20)
The switch (21) is provided with cooling liquid outlet.
3. dynamical system according to claim 1, it is characterised in that the heat exchange unit (2) includes a heat exchanger
(20), the heat exchanger (20) includes：
Housing (22)；And
Multiple heat exchanger channels (200), it is arranged in order and is arranged at intervals along the short transverse of the housing (22), it is each described to change
The passage of heat (200) includes at least one heat exchanger tube (23), at least one fan (24) set close to each heat exchanger tube (23)
And a liquid outlet (25), each heat exchanger tube (23) are arranged in the housing (22) with each fan (24), respectively
The fan (24) is used for cooling to the coolant in the heat exchanger tube (23), and the liquid outlet (25) is arranged on described
On housing (22), the liquid outlet (25) is the cooling liquid outlet of the heat exchanger channels (200).
4. dynamical system according to claim 3, it is characterised in that the heat exchanger (20) also enters including a coolant
Mouthful, the heat exchanger (20) includes three heat exchanger channels (200), is respectively：
First heat exchanger channels (201), set close to the housing (22), first heat exchanger channels (201) are included described in two
Heat exchanger tube (23) and two fans (24), length direction interval of two fans (24) along the heat exchanger tube (23) is set
Put, short transverse of two heat exchanger tubes (23) along the housing (22) is arranged at intervals, and each fan (24) is close to two
The heat exchanger tube (23) is set；
Second heat exchanger channels (202), it is arranged on the side of the remote housing (22) of first heat exchanger channels (201), institute
Stating the second heat exchanger channels (202) includes a heat exchanger tube (23) and two fans (24), two fans (24)
It is arranged at intervals along the length direction of the heat exchanger tube (23)；And
3rd heat exchanger channels (203), it is arranged on remote first heat exchanger channels (201) of second heat exchanger channels (202)
Side, and the structure of the 3rd heat exchanger channels (203) is identical with first heat exchanger channels (201).
5. the dynamical system according to claim 3 or 4, it is characterised in that each heat exchanger channels (200) also include setting
Fin (26) on each heat exchanger tube (23).
6. dynamical system according to claim 1, it is characterised in that coolant conveying power-equipment (3) with it is described
The coolant inlet connection of pile (1), the heat exchange unit (2) connect with the cooling liquid outlet of the pile (1).
7. dynamical system according to claim 1, it is characterised in that coolant conveying power-equipment (3) with it is described
The cooling liquid outlet connection of pile (1), the heat exchange unit (2) connect with the coolant inlet of the pile (1).
8. dynamical system according to claim 2, it is characterised in that the heat exchanger (20) is Air-cooled Heat Exchanger.
9. dynamical system according to claim 1, it is characterised in that the switch (21) is magnetic valve.
10. dynamical system according to claim 1, it is characterised in that the coolant conveying power-equipment (3) is cooling
Liquid pump.
11. dynamical system according to claim 1, it is characterised in that the heat abstractor also includes：
Flow control valve (5), the cooling liquid outlet for being arranged on the pile (1) and coolant conveying power-equipment (3) connect
On logical pipeline.
12. dynamical system according to claim 1, it is characterised in that the heat abstractor also includes：
Cooling between coolant storage device (4), with coolant conveying power-equipment (3) and the heat exchange unit (2)
Liquid pipe line connects.
13. dynamical system according to claim 12, it is characterised in that the coolant storage device (4) is coolant
Case.
14. a kind of vehicles, include the dynamical system of fuel cell, it is characterised in that the dynamical system of the fuel cell
Dynamical system any one of claim 1 to 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710476466.2A CN107394234A (en) | 2017-06-21 | 2017-06-21 | The dynamical system and the vehicles of fuel cell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710476466.2A CN107394234A (en) | 2017-06-21 | 2017-06-21 | The dynamical system and the vehicles of fuel cell |
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| Publication Number | Publication Date |
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| CN107394234A true CN107394234A (en) | 2017-11-24 |
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| CN201710476466.2A Pending CN107394234A (en) | 2017-06-21 | 2017-06-21 | The dynamical system and the vehicles of fuel cell |
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| CN109451714A (en) * | 2019-01-15 | 2019-03-08 | 天津卓越信通科技有限公司 | Liquid cooling heat dissipation device for industrial switch |
| CN112060979A (en) * | 2020-08-21 | 2020-12-11 | 东风汽车集团有限公司 | Cooling control method and device for fuel cell vehicle |
| CN112615031A (en) * | 2020-12-21 | 2021-04-06 | 海卓动力(青岛)能源科技有限公司 | Temperature control method for vehicle proton exchange membrane fuel cell system |
| CN113363528A (en) * | 2020-03-04 | 2021-09-07 | 郑州宇通客车股份有限公司 | Fuel cell thermal management system and control method thereof |
| CN114188564A (en) * | 2021-12-09 | 2022-03-15 | 中国人民解放军32181部队 | Heat extraction system of fuel cell |
| CN117139648A (en) * | 2023-10-30 | 2023-12-01 | 山东创瑞激光科技有限公司 | Cooling device and method for optical path system of laser selective melting equipment |
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| CN114188564A (en) * | 2021-12-09 | 2022-03-15 | 中国人民解放军32181部队 | Heat extraction system of fuel cell |
| CN117139648A (en) * | 2023-10-30 | 2023-12-01 | 山东创瑞激光科技有限公司 | Cooling device and method for optical path system of laser selective melting equipment |
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Effective date of registration: 20200820 Address after: 610097 No. 18 Xixin Avenue, Chengdu High-tech Zone, Sichuan Province Applicant after: Dongfang Electric (Chengdu) Hydrogen Fuel Cell Technology Co.,Ltd. Address before: 611731, No. 18, West core road, hi tech West District, Sichuan, Chengdu Applicant before: DONGFANG ELECTRIC Corp. |
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