CN206461036U - Fuel cell system and fuel cell car - Google Patents

Fuel cell system and fuel cell car Download PDF

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Publication number
CN206461036U
CN206461036U CN201621420183.3U CN201621420183U CN206461036U CN 206461036 U CN206461036 U CN 206461036U CN 201621420183 U CN201621420183 U CN 201621420183U CN 206461036 U CN206461036 U CN 206461036U
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China
Prior art keywords
fuel cell
cell
cooling line
electrokinetic
heat exchanger
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CN201621420183.3U
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Chinese (zh)
Inventor
李进
李飞强
柴结实
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Yutong Bus Co.,Ltd.
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Zhengzhou Yutong Bus Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/50Fuel cells
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

Abstract

The utility model is related to fuel cell system and fuel cell car, fuel cell system therein includes fuel cell and fuel cell cooling line, fuel cell cooling line be provided be used in fuel cell start-up be cooling medium heating in fuel cell cooling line electric heater, electric heater is used to connect electrokinetic cell with from power battery electricity-taking;Fuel cell system also includes the heat exchanger for being used to be incubated electrokinetic cell, and first group of port of heat exchanger is connected in fuel cell cooling line, and second group of port of heat exchanger is used to be connected in electrokinetic cell cooling line.The utility model can effectively solve fuel cell in fuel cell car, and poor-performing is difficult to start and the problem of waste heat discharge when fuel cell is normally run causes heat waste at low ambient temperatures.

Description

Fuel cell system and fuel cell car
Technical field
The utility model is related to fuel cell system and fuel cell car, belongs to vehicular energy technical field.
Background technology
Hydrogenation decarburization is the trend of energy development, and hydrogen fuel is the important channel for solving fossil fuel increasingly depleted.Fuel Battery car has the outstanding advantages such as short hydrogenation time, continual mileage length, zero-emission, high efficiency, is the important motivity source of automobile. Electrochemical energy, which is occurred, for the oxygen in hydrogen and air by fuel cell car using hydrogen as fuel, by fuel cell system directly releases Put as electric energy.Fuel cell technology is applied on the vehicles such as passenger car, car at present, and fuel cell car is preferable The vehicles of new generation.
Fuel cell system is the kernel component of fuel cell car, the humidification and fuel cell of fuel cell reaction gas Reaction produces water, and normal pressure subzero, water can freeze, volume increase, causes the structure change at fuel battery inside water freezing, The structure of fuel cell pile is destroyed, this just causes the low temperature environment adaptability problem of fuel cell system.In subzero Low temperature, it is necessary under the problem of overcoming water freezing, cryogenic conditions, fuel cell system poor performance, in addition can not normal work, need Warming-up is wanted to heat up.In addition, a large amount of used heat are produced during operation of fuel cells, in the prior art generally using circulating cooling medium to combustion Material battery is radiated, to maintain operation of fuel cells in suitable temperature range.But, the heat produced by fuel cell The waste heat discharge amount in air is not only increased, while causing the serious waste of heat.
And the pure electric product in fuel cell car by representative of lithium iron phosphate dynamic battery, because it is sub-zero It can not be charged under low temperature environment, and low temperature performance declines seriously, and there is also serious low temperature environment adaptability problem.Mesh Before, electrokinetic cell realizes that the most common method of insulation is by increasing insulation material or PTC electrical heating outside electrokinetic cell Material, but the Thermal insulation Expense of electrokinetic cell is undoubtedly added, extra insulation electricity is consumed, vehicle energy consumption is added.
Utility model content
The purpose of this utility model is to provide a kind of fuel cell system and fuel cell car, for solving fuel cell Poor-performing is difficult to start at low ambient temperatures and waste heat discharge during fuel cell normal work causes asking for heat waste Topic.
In order to solve the above technical problems, the utility model provides a kind of fuel cell system, including following scheme:
System schema one:The system includes fuel cell and fuel cell cooling line, the fuel cell cooling line Being provided with is used for the electrical heating in the fuel cell start-up for the cooling medium heating in the fuel cell cooling line Device, the electric heater is used to connect electrokinetic cell with from power battery electricity-taking;The fuel cell system also include be used for pair The heat exchanger of electrokinetic cell insulation, first group of port of the heat exchanger is connected in the fuel cell cooling line, is exchanged heat Second group of port of device is used to be connected in electrokinetic cell cooling line.
System schema two:On the basis of system schema one, first group of port of the heat exchanger is parallel with for not The first through-flow bypass when being incubated to electrokinetic cell.
System schema three, four:Respectively on the basis of system schema one or two, it is provided with the fuel cell cooling line Fuel cell heat sink, the fuel cell heat sink is also parallel with for by the fuel cell start-up through-flow second Road.
System schema five:On the basis of system schema two, first bypass passes through the first triple valve and the fuel Battery cooling line is connected.
System schema six, seven:Respectively on the basis of system schema three or four, second bypass passes through the second triple valve It is connected with the fuel cell cooling line.
The utility model additionally provides a kind of fuel cell car, including following scheme:
Automobile scheme one:Including electrokinetic cell system and fuel cell system, the fuel cell system includes fuel electricity Pond and fuel cell cooling line, the electrokinetic cell system include electrokinetic cell and electrokinetic cell cooling line, the fuel Battery cooling line, which is provided with, to be used to be the cooling medium in the fuel cell cooling line in the fuel cell start-up The electric heater of heating, the electric heater is connected with the electrokinetic cell with from power battery electricity-taking;The fuel cell system System also includes the heat exchanger being incubated to the electrokinetic cell, and it is cold that first group of port of the heat exchanger is connected on the fuel cell But in pipeline, second group of port of heat exchanger is connected in the electrokinetic cell cooling line.
Automobile scheme two:On the basis of automobile scheme one, first group of port of the heat exchanger is parallel with for not The first through-flow bypass when being incubated to the electrokinetic cell.
Automobile scheme three, four:Respectively on the basis of automobile scheme one or two, it is provided with the fuel cell cooling line Fuel cell heat sink, the fuel cell heat sink is also parallel with for by the fuel cell start-up through-flow second Road.
Automobile scheme five:On the basis of automobile scheme two, first bypass passes through the first triple valve and the fuel Battery cooling line is connected.
Automobile scheme six, seven:Respectively on the basis of automobile scheme three or four, second bypass passes through the second triple valve It is connected with the fuel cell cooling line.
The beneficial effects of the utility model are:
Fuel cell radiating and electrokinetic cell insulation are combined, protected with the used heat of fuel cell system to electrokinetic cell Temperature, the electric energy stored with electrokinetic cell heats up to fuel cell system warming-up, i.e., in fuel cell start-up, if fuel cell Temperature is relatively low, uses electrokinetic cell to heat to the cooling medium in fuel cell heat dissipation equipment to lift the startup temperature of fuel cell Degree;After fuel cell start-up, if the environment temperature of electrokinetic cell is relatively low, cooling medium passes through heat exchange in fuel cell cooling pipe Device carries out heat exchange with the cooling medium in electrokinetic cell cooling pipe, heats to maintain electrokinetic cell in setting to electrokinetic cell Within the temperature range of, by the way that electrokinetic cell and fuel cell are combined, not only increase the work of electrokinetic cell and fuel cell Make performance, while reducing waste heat discharge amount of the fuel cell to air, improve energy utilization rate, realize vehicle energy-conservation.
Brief description of the drawings
Fig. 1 is that the part of fuel cell car constitutes the schematic diagram of structure;
Fig. 2 is the flow chart of fuel cell cold-starting;
Fig. 3 is the flow chart of electrokinetic cell low-temperature insulation.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment is described in detail to the utility model.
As shown in figure 1, the fuel cell pile 1 of the fuel cell car including fuel cell, electrokinetic cell (water cooling) 2 with And electrokinetic cell cooling line, contactor 3, water tank 4, fuel cell heat sink 5, water pump 6, entire car controller 7, electric heater 8, Second triple valve 9, temperature of powered cell sensor 10, fuel battery temperature sensor 11, electrokinetic cell BMS 12, heat exchanger 13rd, the first triple valve 14 and corresponding fuel cell cooling pipe.Wherein, water tank 4, fuel cell heat sink 5, water pump 6 with And corresponding pipeline constitutes fuel cell cooling line.Cooling medium, the cooling medium are housed in the cooling line of fuel cell Can be that water can also be other suitable cooling agents.In addition, under different applicable cases, the cooling line of fuel cell is also It may include miscellaneous part.First group of port of heat exchanger is connected in fuel cell cooling line, second group of port of heat exchanger For being connected in electrokinetic cell cooling line.
Above-mentioned fuel cell car can realize that fuel cell, in cold-starting, is powered by electrokinetic cell 2, be added using electricity The cooling medium heating that hot device 8 is given in fuel cell cooling pipe, realizes fuel cell cold-starting;Fuel cell is normally run Afterwards, when the temperature of electrokinetic cell is relatively low, the High-temperature cooling medium of fuel cell cooling pipe cooling medium entrance passes through heat exchanger 13 are incubated with carrying out heat exchange to the cooling medium in electrokinetic cell cooling pipe to electrokinetic cell 2, lift the low of electrokinetic cell 2 Warm environmental suitability.
In addition, in order to reduce thermal loss, reduce the power consumption of electrokinetic cell, realize the quick startup of fuel cell, Fuel cell heat sink 5 carries out by-pass shunt by the second triple valve 9, when electrokinetic cell is to cold in fuel cell cooling pipe But when medium is heated, the cooling medium in fuel cell cooling pipe is after triple valve 9, incoming fuel battery radiator 5 partial flow bypass path, without fuel cell heat sink 5;After fuel cell system normally starts, by controlling triple valve 9 to make combustion The cooling medium in battery cooling pipe is expected after triple valve 9, and incoming fuel battery radiator 5 realizes fuel cell system Circulating cooling.
Further, first group of port of heat exchanger 13 is additionally provided with through-flow for being turned on when not being incubated to electrokinetic cell First bypass, the bypass is connected by the first triple valve 14 with fuel cell cooling pipe.When electrokinetic cell 2 is cold to fuel cell But when the cooling medium in pipeline is heated, the cooling medium in fuel cell cooling pipe enters after triple valve 14 The partial flow bypass path of heat exchanger 13, without heat exchanger 13, to reduce thermal losses;After fuel cell start-up, fuel cell cooling Cooling medium is after triple valve 14 in pipeline, into heat exchanger 13, and the High-temperature cooling medium of fuel cell pile 1 passes through heat exchange The cooling medium of device 13 and the electrokinetic cell 2 of water cooling carries out heat exchange, and fuel cell cooling line is controlled by triple valve 14 The assignment of traffic of middle cooling medium, maintains electrokinetic cell 2 within the temperature range of setting.
The flow chart of electrokinetic cell low-temperature insulation is as shown in Fig. 2 in fuel cell start-up, fuel battery temperature sensor The actual environment temperature T1 (temperature range -30~55 DEG C) of 11 detection fuel cells, and the temperature T1 detected is sent to whole Vehicle controller 7, entire car controller 7 judges that temperature T1, if T1 is higher than zero degree, the control of entire car controller 7 fuel cell is just Often start;If T1 is less than zero degree, start warming-up heating schedule, entire car controller 7 obtains power electric by electrokinetic cell (BMS) 12 The state-of-charge (SOC) (SOC scopes be 10%~100%) in pond 2, calculate fuel cell from T1 be warming up to 0 DEG C needed for energy Q1, If Q1 is not less than the dump energy Q2 of electrokinetic cell, now electrokinetic cell can not start, it is necessary to power battery charging, enter action The charging alarm of power battery;If Q1 is less than the dump energy Q2 of electrokinetic cell, electricity meets heating requirements, normal to start heating warming-up Strategy, i.e. contactor 3 are closed, and start electric heater 8 by electrokinetic cell 2 adds to the cooling medium in fuel cell cooling pipe Water pump 6 in heat, fuel cell cooling pipe works, and the cooling medium in fuel cell cooling pipe is from fuel cell pile 1 Coolant outlet outflow, by the partial flow bypass path of 13 first groups of ports of heat exchanger, water tank 4, triple valve 9, fuel cell heat sink 5 Bypass and the incoming fuel battery pile 1 of water pump 6 cooling entrance.The temperature of cooling medium in fuel cell cooling pipe Lasting to rise, after coolant temperature is raised to 0 DEG C, normal starting fluid battery, electric heater 8 is stopped.
The flow chart of electrokinetic cell low-temperature insulation is as shown in figure 3, when vehicle is normally run, temperature of powered cell sensor The actual environment temperature T2 (temperature range -30~55 DEG C) of 10 detection electrokinetic cells, and the temperature T2 detected is sent to whole Vehicle controller 7, entire car controller 7 is judged temperature T2, if T2 is not less than zero degree, fuel cell is normally run, fuel electricity Cooling medium in the cooling pipe of pond to electrokinetic cell 2 without being incubated;If T2 be less than zero degree, by controlling triple valve 14, make from The High-temperature cooling medium of the coolant outlet outflow of fuel cell pile 1 flows through 13 first groups of ports of heat exchanger.Furthermore it is also possible to root According to the temperature conditions of electrokinetic cell, the flow point of the cooling medium in 13 first groups of ports of heat exchanger is controlled by triple valve 14 Match somebody with somebody, when electrokinetic cell temperature than it is relatively low when, the most or all of cooling in fuel cell cooling line can be controlled Medium flows through 13 first groups of ports of heat exchanger, and (design temperature still is below) when the temperature of electrokinetic cell is more of a relatively high, can To control cooling medium a small amount of in fuel cell cooling line to flow through 13 first groups of ports of heat exchanger, to maintain electrokinetic cell temperature Degree is in the range of the T3 (5~30 DEG C) of setting, so as to realize the low-temperature insulation function of electrokinetic cell, improves the low temperature of electrokinetic cell Environmental suitability.

Claims (10)

1. a kind of fuel cell system, including fuel cell and fuel cell cooling line, it is characterised in that the fuel cell Cooling line, which is provided with, to be used in the fuel cell start-up for the cooling medium heating in the fuel cell cooling line Electric heater, the electric heater is used to connect electrokinetic cell with from power battery electricity-taking;The fuel cell system is also wrapped The heat exchanger for being incubated to electrokinetic cell is included, first group of port of the heat exchanger is connected on the fuel cell cooling line In, second group of port of heat exchanger is used to be connected in electrokinetic cell cooling line.
2. fuel cell system according to claim 1, it is characterised in that first group of port of the heat exchanger is parallel with For first bypass through-flow when not being incubated to electrokinetic cell.
3. fuel cell system according to claim 1 or 2, it is characterised in that set in the fuel cell cooling line There is a fuel cell heat sink, the fuel cell heat sink is also parallel with the fuel cell start-up through-flow second Bypass.
4. fuel cell system according to claim 2, it is characterised in that first bypass by the first triple valve with The fuel cell cooling line is connected.
5. fuel cell system according to claim 3, it is characterised in that second bypass by the second triple valve with The fuel cell cooling line is connected.
6. a kind of fuel cell car, including electrokinetic cell system and fuel cell system, the fuel cell system include combustion Expect battery and fuel cell cooling line, the electrokinetic cell system includes electrokinetic cell and electrokinetic cell cooling line, and it is special Levy and be, the fuel cell cooling line, which is provided with, to be used in the fuel cell start-up be the fuel cell cooling tube The electric heater of cooling medium heating in road, the electric heater is connected with the electrokinetic cell with from power battery electricity-taking; The fuel cell system also includes the heat exchanger being incubated to the electrokinetic cell, and first group of port of the heat exchanger is connected on In the fuel cell cooling line, second group of port of heat exchanger is connected in the electrokinetic cell cooling line.
7. fuel cell car according to claim 6, it is characterised in that first group of port of the heat exchanger is parallel with For first bypass through-flow when not being incubated to the electrokinetic cell.
8. the fuel cell car according to claim 6 or 7, it is characterised in that set in the fuel cell cooling line There is a fuel cell heat sink, the fuel cell heat sink is also parallel with the fuel cell start-up through-flow second Bypass.
9. fuel cell car according to claim 7, it is characterised in that first bypass by the first triple valve with The fuel cell cooling line is connected.
10. fuel cell car according to claim 8, it is characterised in that second bypass passes through the second triple valve It is connected with the fuel cell cooling line.
CN201621420183.3U 2016-12-22 2016-12-22 Fuel cell system and fuel cell car Active CN206461036U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621420183.3U CN206461036U (en) 2016-12-22 2016-12-22 Fuel cell system and fuel cell car

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Application Number Priority Date Filing Date Title
CN201621420183.3U CN206461036U (en) 2016-12-22 2016-12-22 Fuel cell system and fuel cell car

Publications (1)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018113750A1 (en) * 2016-12-22 2018-06-28 郑州宇通客车股份有限公司 Fuel cell system and fuel cell vehicle
CN108232235A (en) * 2018-01-05 2018-06-29 湘潭大学 A kind of Intelligent heat management system for methanol fuel cell automobile
CN108550877A (en) * 2018-05-17 2018-09-18 清华大学 A kind of fuel cell pile distribution cold-starting device, system and method
CN109980312A (en) * 2017-12-27 2019-07-05 郑州宇通客车股份有限公司 A kind of temperature equalization control system of vehicle-mounted liquid cooling battery case

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018113750A1 (en) * 2016-12-22 2018-06-28 郑州宇通客车股份有限公司 Fuel cell system and fuel cell vehicle
CN109980312A (en) * 2017-12-27 2019-07-05 郑州宇通客车股份有限公司 A kind of temperature equalization control system of vehicle-mounted liquid cooling battery case
CN108232235A (en) * 2018-01-05 2018-06-29 湘潭大学 A kind of Intelligent heat management system for methanol fuel cell automobile
CN108232235B (en) * 2018-01-05 2020-07-24 湘潭大学 Intelligent heat management system for methanol fuel cell automobile
CN108550877A (en) * 2018-05-17 2018-09-18 清华大学 A kind of fuel cell pile distribution cold-starting device, system and method
CN108550877B (en) * 2018-05-17 2021-04-23 清华大学 Distributed cold start device, system and method for fuel cell stack

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Address after: 450061 Yudao Road, Guancheng District, Zhengzhou City, Henan Province

Patentee after: Yutong Bus Co.,Ltd.

Address before: 450016 Yutong Industrial Zone, eighteen Li River, Henan, Zhengzhou

Patentee before: ZHENGZHOU YUTONG BUS Co.,Ltd.