CN109802198A - Combined type power-supply system and its control method - Google Patents
Combined type power-supply system and its control method Download PDFInfo
- Publication number
- CN109802198A CN109802198A CN201811479645.2A CN201811479645A CN109802198A CN 109802198 A CN109802198 A CN 109802198A CN 201811479645 A CN201811479645 A CN 201811479645A CN 109802198 A CN109802198 A CN 109802198A
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- Prior art keywords
- module
- lithium battery
- low
- fuel cell
- fuel
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000000446 fuel Substances 0.000 claims abstract description 228
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 122
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 122
- 238000001816 cooling Methods 0.000 claims description 44
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 229910021389 graphene Inorganic materials 0.000 claims description 12
- 239000012528 membrane Substances 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 5
- 230000007812 deficiency Effects 0.000 claims description 3
- 210000004027 cell Anatomy 0.000 description 86
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 21
- 230000006872 improvement Effects 0.000 description 16
- 238000013016 damping Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- BNOODXBBXFZASF-UHFFFAOYSA-N [Na].[S] Chemical compound [Na].[S] BNOODXBBXFZASF-UHFFFAOYSA-N 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- WXMBHSUHAJYVEA-UHFFFAOYSA-N [Na][Cl][Ni] Chemical compound [Na][Cl][Ni] WXMBHSUHAJYVEA-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
-
- 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
- Y02E60/10—Energy storage using batteries
-
- 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
Landscapes
- Fuel Cell (AREA)
Abstract
The invention discloses a kind of combined type power-supply system and control methods, including at least one lithium battery module fixed with each other, at least one low-temperature fuel cell module and at least one fuel module, the lithium battery module, low-temperature fuel cell module and fuel module are electrically connected with battery management unit；The fuel module is electrically connected with the low-temperature fuel cell module；The low-temperature fuel cell module is electrically connected with the lithium battery module；The lithium battery module is electrically connected with the fuel module；The fuel module provides fuel for the low-temperature fuel cell module, and the low-temperature fuel cell module is that the lithium battery module is powered.The power system structure is compact, area occupied is smaller.By the control method of combined type power-supply system enable combined type power supply security of system it is higher, power supply it is more stable, so that the performance of power-supply system can be improved.
Description
Technical field
The present invention relates to combined type battery technical fields, more particularly to a kind of combined type power-supply system and its control
Method.
Background technique
Extensive use of the mankind to new energy results in the rapidly expansion in secondary cell market.In current new energy system
Requirement to secondary cell is ubiquitous.Either electric car, wind energy, solar grid-connected or peak load regulation network are all badly in need of one
The secondary cell that kind is cheap, reliable, safety and service life are long.The secondary cell developed at present is concentrated mainly on lithium ion battery,
The high temperature sodium-sulphur battery, sodium nickel chlorine battery and vanadium flow battery.These batteries all have the advantages that it is respective, such as lithium ion battery and
The high temperature sodium-sulphur battery service life is long and energy density is high, and vanadium flow battery even more theoretically has the unlimited service life etc..But no matter
Which kind of battery can not all meet the requirement of cheap, reliable, safety and service life length simultaneously.
Currently on the market generally using battery or super capacitor as auxiliary energy storage device, with the common structure of fuel cell
At multiple-energy-source hybrid drive system, but battery and fuel cell are all independent individuals, so that volume is larger, area occupied
It is larger.In addition, current combined type power-supply system is typically all lithium battery starting fluid cell power generation, from fuel cell directly to
Load supplying.But since fuel cell output response inertia is larger, continually output current fluctuation will shorten the longevity of fuel cell
Life, furthermore influence of the temperature to fuel battery performance is very big, and optimum temperature needs heated constant temperature to design at 60-80 °；Therefore existing
Fuel cell system on the market require one lithium battery of additional or super capacitor module, to cope with power
Fluctuation and fuel cell booting (startings of the additional accessories such as heating, constant temperature, fuel supply, flowmeter).And there are one for lithium battery
Fixed self-discharge phenomenon, its electricity during storage gradually decrease, and standby time has been grown it is possible that can not start combustion
The phenomenon that expecting battery, to influence the use of power-supply system.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of combined type power-supply system, the power system structure is compact, accounts for
It is smaller with area.
The technical solution of the invention is as follows, provides a kind of combined type power-supply system, including it is fixed with each other extremely
A few lithium battery module, at least one low-temperature fuel cell module and at least one fuel module, the lithium battery module,
Low-temperature fuel cell module and fuel module are electrically connected with battery management unit；The fuel module and the low temperature fire
Expect battery module electrical connection；The low-temperature fuel cell module is electrically connected with the lithium battery module；The lithium battery
Module is electrically connected with the fuel module；The fuel module provides fuel for the low-temperature fuel cell module, institute
The low-temperature fuel cell module stated is that the lithium battery module is powered.
After using the above structure, combined type power-supply system of the invention has the advantage that compared with prior art
Since the lithium battery module of combined type power-supply system of the invention, low-temperature fuel cell module and fuel module are fixed on one
It rises and forms an entirety, structure is compacter, and area occupied is smaller.
As an improvement, the lithium battery module is equipped with multiple, multiple lithium battery modules are bolted together and adjacent two
A lithium battery module is each other in series or parallel.After adopting the structure, it is more reasonable to design.
As an improvement, the lithium battery module includes lithium battery frame and lithium battery, the lithium battery is set to described
Lithium battery frame in, the outside of the lithium battery is equipped with the first cooling fin.After adopting the structure, the lithium battery mould
Block structure is simple and compact, easy to assembly, and the first cooling fin is to heat dissipation of lithium battery.
As an improvement, first cooling fin is graphene cooling fin.After adopting the structure, the graphene dissipates
Backing has elasticity, has damping effect to lithium battery module.
As an improvement, the structure between the lithium battery frame of two adjacent lithium battery modules by protrusion and groove is mutual
Cooperation is bolted together.After adopting the structure, package assembly is simple between lithium battery frame, assembles more convenient.
As an improvement, the low-temperature fuel cell module is bolted together with the lithium battery module.Using such
After structure, assembled between low-temperature fuel cell module and lithium battery module compacter.
As an improvement, the low-temperature fuel cell module includes hollow low-temperature fuel cell frame, positive plate and bears
Pole plate, the positive plate and negative plate seal the two sides for being fixed on the low-temperature fuel cell frame respectively, and described is low
Membrane electrode is equipped in temp fuel battery frame, the positive plate and negative plate are interposed between in two spaces by the membrane electrode,
The low-temperature fuel cell frame is equipped with feed opening.After adopting the structure, low-temperature fuel cell modular structure is simple.
As an improvement, between the lithium battery frame of the low-temperature fuel cell frame and lithium battery module by protrusion and
The structure mutual cooperation of groove is bolted together.After adopting the structure, between low-temperature fuel cell frame and lithium battery frame
Package assembly is simple and assembling is more convenient.
As an improvement, being equipped with the second cooling fin on the outside of the outside of the positive plate and negative plate.Using such knot
After structure, second cooling fin makes positive plate and negative plate heat dissipation effect preferable.
As an improvement, second cooling fin is graphene cooling fin.After adopting the structure, the graphene dissipates
Backing has elasticity, has damping effect to low-temperature fuel cell module.
As an improvement, the fuel module is bolted together with the low-temperature fuel cell module.Using such knot
After structure, assembled between fuel module and low-temperature fuel cell module compacter.
As an improvement, the fuel module includes fuel frame, equipped with closed for containing in the fuel frame
The cavity of fuel is put, the fuel frame is equipped with pump and discharge pipe, the discharge pipe are protruded into the cavity
The interior and discharge pipe is connected with pump, and the discharge pipe is also connected with the feed opening on low-temperature fuel cell frame.
After adopting the structure, fuel module structure is simple.
As an improvement, the downside of the lithium battery frame and the downside of low-temperature fuel cell frame are radiated equipped with third
Piece, first cooling fin and the second cooling fin are connected with the third cooling fin.It is described after adopting the structure
Third cooling fin the heat on the first cooling fin and the second cooling fin can be conducted through come so that power module heat dissipation effect is more
It is good.
As an improvement, the third cooling fin is graphene cooling fin.After adopting the structure, the graphene dissipates
Backing has elasticity, has damping effect to power module.
As an improvement, the upper end of the lithium battery frame is equipped with the first Lift hook, the low-temperature fuel cell frame
Upper end be equipped with the second Lift hook, the upper end of the fuel frame is equipped with third Lift hook, first Lift hook, second
Lift hook and third Lift hook are spliced to form lifting part.After adopting the structure, when power-supply system assembles, pass through lifting part
Power module can be lifted, assembling is more convenient, can effectively reduce labour.
The technical problem to be solved by the present invention is to provide a kind of control method of combined type power-supply system, pass through the control
Method enable combined type power supply security of system it is higher, power supply it is more stable, so that the performance of power-supply system can be improved.
The technical solution of the invention is as follows, provides a kind of control method of combined type power-supply system, comprising the following steps:
When battery management unit monitors lithium battery module voltage lower than setting lower limit, lithium battery module is powered to fuel module, combustion
Expect that module supplies fuel to low-temperature fuel cell module；After fuel module starts time T, lithium battery module stops to fuel module
Power supply, low-temperature fuel cell module are powered to fuel module；Low-temperature fuel cell charges to lithium battery module.
After using the above structure, the control method of combined type power-supply system of the invention, compared with prior art, have with
Lower advantage:
Since the control method low-temperature fuel cell module of combined type power-supply system of the invention is used to charge to lithium battery module,
It is directly powered to the load by lithium battery module, since lithium battery power supply is more stable, and security performance is higher, therefore is greatly improved
The performance of power-supply system.Lithium battery module is powered to fuel module with the work of starting fluid module, and fuel modules is waited to start time T
After can reach start-up temperature, subsequent lithium battery module stops powering to fuel module, and low-temperature fuel cell module is to fuel mould
Block power supply, is monitored by battery management unit, and electricity of the lithium battery module for starting fluid module can always exist, and can effectively be kept away
Exempt to occur can not starting fluid battery the phenomenon that, and battery mistake caused by self discharge during avoiding lithium battery from storing for a long time
Spend electric discharge problem.
As an improvement, during the charging process, battery management unit controls charging current, while battery management unit is real
When monitor lithium battery module voltage, until reach lithium battery set upper voltage limit until.After adopting the structure, charging process compared with
It is secure and reliable.
As an improvement, during the charging process, battery management unit monitors the fuel stock of fuel module；In fuel stock foot
When enough, low-temperature fuel cell module is closed after charging complete；If when fuel stock deficiency, closing low-temperature fuel cell module,
And send warning.After adopting the structure, battery management unit monitors the storage of the fuel of fuel module in real time, in fuel shortage
In the case where, can intelligent reminding increase fuel so that power-supply system can operate normally.
Detailed description of the invention
Fig. 1 is the schematic perspective view of combined type power-supply system of the invention.
Fig. 2 is that combined type power-supply system of the invention removes the schematic perspective view after shell.
Fig. 3 is combined type power supply internal system mounting structure schematic diagram of the invention.
Fig. 4 is the schematic perspective view of the lithium battery module of combined type power-supply system of the invention.
Fig. 5 is the low-temperature fuel cell frame schematic perspective view of combined type power-supply system of the invention.
Fig. 6 is the low-temperature fuel cell module installation structure schematic diagram of combined type power-supply system of the invention.
Fig. 7 is the schematic perspective view of the fuel module of combined type power-supply system of the invention.
Fig. 8 is the schematic perspective view of the connecting rod of combined type power-supply system of the invention.
Fig. 9 is the enlarged structure schematic diagram of part A in Fig. 6.
Figure 10 is the schematic perspective view of the disk spring of combined type power-supply system of the invention.
Figure 11 is the schematic perspective view of the disk spring group of combined type power-supply system of the invention.
Figure 12 is the schematic perspective view of the carry connecting plate of combined type power-supply system of the invention.
Figure 13 is the circuit block diagram of combined type power-supply system of the invention.
It is as shown in the figure: 1, lithium battery module, 101, lithium battery frame, 102, lithium battery, the 103, first cooling fin, 104, recessed
Slot, 105, protrusion, the 106, first groove, the 107, first Lift hook, 2, low-temperature fuel cell module, 201, low-temperature fuel cell frame
Frame, 202, positive plate, 203, negative plate, 204, membrane electrode, 205, feed opening, the 206, second cooling fin, the 207, second groove,
208, the second Lift hook, 3, fuel module, 301, fuel frame, 302, cavity, 303, discharge pipe, 304, third groove,
305, third Lift hook, 306, installation cavity, 4, third cooling fin, 5, first connecting rod, 6, second connecting rod, 7, disk spring, 8, dish
Shape groups of springs, 9, shell, 901, step, 10, carry connecting plate, 1001, carry component.
Specific embodiment
In order to so more preferable that understand the application, various aspects of the reference attached drawing to the application are made into more detailed description.It answers
Understand, the only description to the illustrative embodiments of the application is described in detail in these, rather than limits the application in any way
Range.In the specification, the identical element of identical reference numbers.
It should be noted that, in the present specification, the first, second equal statement is only used for a feature and another characteristic area
It separates, without indicating any restrictions to feature.Therefore, it without departing substantially from the guidance of the application, is discussed below
The first cooling fin be also known as the second cooling fin.
In the accompanying drawings, for ease of description, thickness, the size and shape of object are slightly exaggerated.Attached drawing is merely illustrative
And it is non-critical drawn to scale.
It will also be appreciated that term "comprising" " comprising ", " having ", "comprising", " including ", when making in the present specification
Used time indicates that there are the feature, entirety, step, operations, elements, and/or components, but does not preclude the presence or addition of one
Or other multiple features, entirety, step, step, operation, component, assembly unit and/or their combination.In addition, ought such as " ... extremely
Few one " statement when appearing in after the list of listed feature, feature listed by modification is entire, rather than the list in modification list
Only element.
Fig. 1 is the schematic perspective view of combined type power-supply system of the invention.Fig. 2 is combined type power supply system of the invention
System removes the schematic perspective view after shell.Fig. 3 is combined type power supply internal system mounting structure schematic diagram of the invention.This
The combined type power-supply system of invention includes power module and shell 9.The power module include it is fixed with each other extremely
A few lithium battery module 1, at least one low-temperature fuel cell module 2 and at least one fuel module 3, the low temp fuel
Battery module 2 is electrically connected with the lithium battery module 1, and the fuel module 3 is that the low-temperature fuel cell module 2 mentions
For fuel.The shell 9 shields to power module for installing power module.
Fig. 4 is the schematic perspective view of the lithium battery module of combined type power-supply system of the invention.The lithium battery
Module be equipped with it is multiple, multiple lithium battery modules are bolted together and two adjacent lithium battery modules are serially connected.Each lithium electricity
Pond module 1 includes lithium battery frame 101 and lithium battery 102, and the lithium battery 102 is set to the lithium battery frame 101
Interior, the outside of the lithium battery 102 is equipped with the first cooling fin 103, and first cooling fin 103 is graphene cooling fin.
Multiple lithium batteries 102 can also be set in each lithium battery frame 101, i.e., be equipped with multiple peaces in lithium battery frame 101
Position is filled, one piece of lithium battery is mounted in each installation position, multiple lithium batteries are cascaded by conducting wire head and the tail.
Pass through the structure phase of protrusion 105 and groove 104 between the lithium battery frame 101 of two adjacent lithium battery modules 1
Interworking, which is merged, to be fitted together.I.e. the side of lithium battery frame 101 is equipped with groove 104, and another of lithium battery frame 101 is equipped with convex
105 are played, after two lithium battery frames 101 are stacked together, the protrusion 105 of one of lithium battery frame 101 is embedded in separately
In the groove 104 of one lithium battery frame 101.
Fig. 5 is the low-temperature fuel cell module schematic perspective view of combined type power-supply system of the invention.Described is low
Temp fuel battery module 2 can be bolted together with the lithium battery module 1.
Fig. 6 is the low-temperature fuel cell module installation structure schematic diagram of combined type power-supply system of the invention.Described is low
Temp fuel battery module 2 includes that hollow low-temperature fuel cell frame 201(, that is, low-temperature fuel cell frame 201 both ends are all provided with
There is opening).The low-temperature fuel cell frame 201 is equipped with feed opening 205.The feed opening 205 and low temp fuel electricity
The connection of pond module internal cavity.Mountable low-temperature fuel cell on low-temperature fuel cell frame 201, such as the combustion of hydrogen-oxygen proton exchange membrane
Expect battery or methanol fuel cell.
The hydrogen-oxygen Proton Exchange Membrane Fuel Cells and methanol fuel cell, the two structure is similar, mainly there is positive plate
202, negative plate 203 and fuel cell membrane electrode 204 are constituted, and the positive plate 202 and negative plate 203 seal be fixed on respectively
The two sides of the low-temperature fuel cell frame 201, the low-temperature fuel cell frame 201 is interior equipped with membrane electrode 204, described
Membrane electrode 204 positive plate 202 and negative plate 203 are interposed between in two spaces.Fuel (hydrogen, oxygen, methanol etc.)
Entered in the flow channel space reserved on positive/negative plate by feed opening 205 respectively.
The low-temperature fuel cell module may be metal-air battery.Metal-air battery structure include cathode,
Anode and electrolyte.Cell cathode, anode are mounted on battery frame two sides, have certain space between the two.Battery work
When, electrolyte is entered between cathode and anode by feed opening 205, by being pumped back in fuel tank when stopping working.
By raised and recessed between the lithium battery frame 101 of the low-temperature fuel cell frame 201 and lithium battery module 1
The structure mutual cooperation of slot is bolted together.Protrusion and groove structure are identical between this structure and lithium battery frame, herein no longer
It repeats.
The outside of the positive plate 202 and the outside of negative plate 203 are equipped with the second cooling fin 206.Described second
Cooling fin 206 is graphene cooling fin.
Fig. 7 is the schematic perspective view of the fuel module of combined type power-supply system of the invention.The fuel module 3
It is bolted together with the low-temperature fuel cell module 2.The fuel module 3 includes fuel frame 301, the fuel
Equipped with closed for holding the cavity 302 of fuel in frame 301, the fuel frame 301 be equipped with pump (not shown) and
Discharge pipe.The fuel frame 301 is equipped with installation cavity 306, and the pump is mounted in the installation cavity 306.Institute
The discharge pipe 303 stated protrudes into the cavity 302 and the discharge pipe 303 is connected with pump, the discharge pipe
303 are also connected with the feed opening 205 on low-temperature fuel cell frame 201.Control system starts pump work can be by fuel frame
Fuel in frame 301, which is released, to be inputted in low-temperature fuel cell frame 201.The type and low temp fuel of fuel in fuel frame
The type of battery matches, for example low-temperature fuel cell is hydrogen-oxygen fuel cell, and the fuel in fuel frame is just hydrogen and oxygen
Gas；For example low-temperature fuel cell is methanol fuel cell, the fuel in fuel frame is just methanol etc..
The downside of the power module is equipped with third cooling fin 4, i.e. third cooling fin 4 is located at lithium battery frame 101, low
The downside of temp fuel battery frame 201 and fuel frame 301.The lower end of first cooling fin 103 and the second cooling fin 205
Lower end connect with the third cooling fin 4.The third cooling fin 4 is also graphene cooling fin.
Fig. 8 is the schematic perspective view of the connecting rod of combined type power-supply system of the invention.Fig. 9 is that part A is put in Fig. 8
Big structure schematic diagram.Figure 10 is the schematic perspective view of the damping pad of combined type power-supply system of the invention.Figure 11 is this
The schematic perspective view of the disk spring group of the combined type power-supply system of invention.Two sides of the power module and described
Carry connecting plate 10 is equipped between shell, the power module is connected on the carry connecting plate 10 by connecting rod；
The carry connecting plate 10 is suspended on the shell 9；The dampening assembly be set to the power module with it is described
Carry connecting plate 10 between.The two sides of the shell 9 are equipped with the step for hanging the carry connecting plate 10
901, the carry connecting plate 10 is equipped with and the matched carry component 1001 of step 901, the carry component
1001 be triangle robust structure.The carry component 1001 rides on the step 901 and the carry component
1001 are fixedly connected with the step 901, so that the power module is suspended in shell 9.The carry connecting plate
Damping assembly is equipped between 10 and the power module.Realize being bonded for power module and shell 9.
The connecting rod includes first connecting rod 5 and second connecting rod 6.Before the first connecting rod 5 and lithium battery frame 101
Side, low-temperature fuel cell frame 201 front side connected with the front side of fuel frame 301, i.e., before described lithium battery frame 101
Side is equipped with the first groove 106, and the front side of the low-temperature fuel cell frame 2 is equipped with the second groove 207, fuel frame 301
Front side is equipped with third groove 304, and it is embedding that first groove 106, the second groove 207 and third groove 304 are spliced to form first
Enter slot, the first connecting rod 5 is embedded in first embedded groove and the both ends of first connecting rod 5 are connected to power supply mould
On the carry connecting plate 10 of block two sides, i.e., the both ends of described first connecting rod 5 extend through the carry connecting plate 10 and
Pass through nut check.The first resilient cushion, this specific embodiment are equipped between the first connecting rod and first embedded groove
In, first resilient cushion is the soft rubber cushion that cross section is "U" shaped, and the flexible glue cushion cover is in the first connecting rod
Outside.First resilient cushion can also be the soft rubber cushion of tubulose.
The second connecting rod 6 and the rear side of lithium battery frame 101, the rear side and fuel of low-temperature fuel cell frame 201
The rear side of frame 301 connects.The rear side of the lithium battery frame 101 is equipped with the 4th groove, the low-temperature fuel cell frame
The rear side of frame 201 is equipped with the 5th groove, and the rear side of fuel frame 301 is equipped with the 6th groove, the 4th groove, the 5th groove
It is spliced to form the second embedded groove with the 6th groove, the second connecting rod 6 is embedded in second embedded groove and second connects
The both ends of bar 6 are connected on the carry connecting plate 10 of power module two sides, i.e. the both ends of the second connecting rod 6 are passed through respectively
It wears the carry connecting plate 10 and passes through nut check.It is equipped between the second connecting rod and second embedded groove
Second resilient cushion, in this specific embodiment, second resilient cushion is the soft rubber cushion of tubulose, and the flexible glue cushion cover is described
Second connecting rod outside.
The damping assembly includes multi-disc damping pad, and damping pad described in multi-disc is placed on the end of the connecting rod
And it is against between the power module and the carry connecting plate 10.The damping pad is disk spring 7, two panels dish
The small end (edge of the through-hole matched among disk spring with connecting rod) of shape spring 7 is close together to form disk spring group 8,
Multiple groups disk spring group 8 is stacked together to form the damping assembly, i.e., the outer edge of two groups of adjacent disk spring groups 8 leans on
Together.
The upper end of the lithium battery frame 101 is equipped with the first Lift hook 107, the low-temperature fuel cell frame 2
Upper end is equipped with the second Lift hook 208, and the upper end of the fuel frame 301 is equipped with third Lift hook 305, first lifting
Hook 107, the second Lift hook 208 and third Lift hook 305 are spliced to form lifting part.
Figure 13 is the circuit block diagram of combined type power-supply system of the invention.The circuit portion of combined type power-supply system of the invention
Dividing includes battery management unit.The sensor for monitoring fuel stock is additionally provided in the fuel frame of the fuel module,
If low-temperature fuel cell is hydrogen-oxygen fuel cell, the sensor is press detection sensor, the press detection sensor
For monitoring the pressure of hydrogen in fuel frame；If low-temperature fuel cell is methanol fuel cell, the sensor is liquid
Level detection sensor, the liquid level detecting sensor are used to monitor the methanol in fuel frame.
The circuit part of the lithium battery module, the circuit part of low-temperature fuel cell module, fuel module circuit
Part is electrically connected with the battery management unit；The circuit part of the lithium battery module also with low-temperature fuel cell mould
The circuit part electrical connection of the circuit part and fuel module of block；The circuit part of the low-temperature fuel cell module with it is described
Fuel module circuit part electrical connection.
The control method of combined type power-supply system of the invention the following steps are included:
S1, when battery management unit monitors lithium battery module voltage lower than setting lower limit, lithium battery module is to fuel module
Power supply, fuel module supply fuel to low-temperature fuel cell module；
After S2, fuel module starting time T, lithium battery module stops powering to fuel module, and low-temperature fuel cell module is to combustion
Expect module for power supply；Setting the time required to the T starts according to actual fuel cell, is under normal conditions 60s.
S3, low-temperature fuel cell charge to lithium battery module.
S4, during the charging process, battery management unit control charging current, while battery management unit real-time monitoring
Lithium battery module voltage, until reaching lithium battery setting upper voltage limit.
S5, during the charging process, battery management unit monitor the fuel stock of fuel module；When fuel stock is enough,
Low-temperature fuel cell module is closed after charging complete；If when fuel stock deficiency, closing low-temperature fuel cell module, and send
Warning.The fuel stock is detected by sensor.
Claims (18)
1. a kind of combined type power-supply system, it is characterised in that: including at least one lithium battery module fixed with each other, extremely
A few low-temperature fuel cell module and at least one fuel module, the lithium battery module, low-temperature fuel cell module and
Fuel module is electrically connected with battery management unit；The fuel module is electrically connected with the low-temperature fuel cell module；
The low-temperature fuel cell module is electrically connected with the lithium battery module；The lithium battery module and the fuel mould
Block electrical connection；The fuel module provides fuel, the low-temperature fuel cell mould for the low-temperature fuel cell module
Block is that the lithium battery module is powered.
2. combined type power-supply system according to claim 1, it is characterised in that: the lithium battery module be equipped with it is multiple,
Multiple lithium battery modules are bolted together and two adjacent lithium battery modules are each other in series or parallel.
3. combined type power-supply system according to claim 2, it is characterised in that: the lithium battery module includes lithium battery
Frame and lithium battery, the lithium battery are set in the lithium battery frame, and the outside of the lithium battery is equipped with first and dissipates
Backing.
4. combined type power-supply system according to claim 3, it is characterised in that: first cooling fin dissipates for graphene
Backing.
5. combined type power-supply system according to claim 3, it is characterised in that: the lithium electricity of two adjacent lithium battery modules
It is bolted together between the frame of pond by protrusion and the mutual cooperation of the structure of groove.
6. combined type power-supply system according to claim 3, it is characterised in that: the low-temperature fuel cell module and institute
The lithium battery module stated is bolted together.
7. combined type power-supply system according to claim 6, it is characterised in that: the low-temperature fuel cell module includes
Hollow low-temperature fuel cell frame, positive plate and negative plate, the positive plate and negative plate seal respectively be fixed on it is described
Low-temperature fuel cell frame two sides, membrane electrode is equipped in the low-temperature fuel cell frame and is located at the positive plate
Between negative plate；The low-temperature fuel cell frame is equipped with the feed opening being connected to low-temperature fuel cell module internal cavity.
8. combined type power-supply system according to claim 7, it is characterised in that: the low-temperature fuel cell frame and lithium
It is bolted together between the lithium battery frame of battery module by protrusion and the mutual cooperation of the structure of groove.
9. combined type power-supply system according to claim 7, it is characterised in that: the outside of the positive plate and negative plate
Outside be equipped with the second cooling fin.
10. combined type power-supply system according to claim 9, it is characterised in that: second cooling fin is graphene
Cooling fin.
11. combined type power-supply system according to claim 7, it is characterised in that: the fuel module with it is described low
Temp fuel battery module is bolted together.
12. combined type power-supply system according to claim 11, it is characterised in that: the fuel module includes fuel frame
Frame, the fuel frame is interior equipped with the closed cavity for being used to hold fuel, and the fuel frame is equipped with pump and discharges
Pipeline, the discharge pipe protrudes into the cavity and the discharge pipe is connected with pump, and the discharge pipe is also
It is connected with the feed opening on low-temperature fuel cell frame.
13. combined type power-supply system according to claim 9, it is characterised in that: the downside of the lithium battery frame and
The downside of low-temperature fuel cell frame is equipped with third cooling fin, and first cooling fin and the second cooling fin are with described the
Three cooling fins are connected.
14. combined type power-supply system according to claim 13, it is characterised in that: the third cooling fin is graphene
Cooling fin.
15. combined type power-supply system according to claim 15, it is characterised in that: the upper end of the lithium battery frame is set
There is the first Lift hook, the upper end of the low-temperature fuel cell frame is equipped with the second Lift hook, the upper end of the fuel frame
Equipped with third Lift hook, first Lift hook, the second Lift hook and third Lift hook are spliced to form lifting part.
16. a kind of control method of combined type power-supply system, comprising the following steps:
When battery management unit monitors lithium battery module voltage lower than setting lower limit, lithium battery module is supplied to fuel module
Electricity, fuel module supply fuel to low-temperature fuel cell module；
After fuel module starts time T, lithium battery module stops powering to fuel module, and low-temperature fuel cell module is to fuel mould
Block power supply；
Low-temperature fuel cell charges to lithium battery module.
17. the control method of combined type power-supply system according to claim 16, it is characterised in that: during the charging process,
Battery management unit controls charging current, while battery management unit real-time monitoring lithium battery module voltage, until reaching
Until lithium battery sets upper voltage limit.
18. the control method of combined type power-supply system according to claim 16, it is characterised in that: during the charging process,
The fuel stock of battery management unit monitoring fuel module；Low temp fuel electricity is closed when fuel stock is enough, after charging complete
Pond module；If when fuel stock deficiency, closing low-temperature fuel cell module, and send warning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811479645.2A CN109802198A (en) | 2018-12-05 | 2018-12-05 | Combined type power-supply system and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811479645.2A CN109802198A (en) | 2018-12-05 | 2018-12-05 | Combined type power-supply system and its control method |
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| CN109802198A true CN109802198A (en) | 2019-05-24 |
Family
ID=66556363
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811479645.2A Pending CN109802198A (en) | 2018-12-05 | 2018-12-05 | Combined type power-supply system and its control method |
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