CN106384852A - Battery system - Google Patents
Battery system Download PDFInfo
- Publication number
- CN106384852A CN106384852A CN201611085115.0A CN201611085115A CN106384852A CN 106384852 A CN106384852 A CN 106384852A CN 201611085115 A CN201611085115 A CN 201611085115A CN 106384852 A CN106384852 A CN 106384852A
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- China
- Prior art keywords
- battery
- heat
- battery core
- bms
- flow line
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- 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
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
-
- 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
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/27—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
- H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The invention provides a battery system, and belongs to the technical field of batteries. The battery system comprises a case, a plurality of sections of battery cells, a temperature collecting probe, a BMS (battery management system), a heating and refrigeration assembly, a liquid flowing pipeline, a heat conduction medium and a water pump, wherein the liquid flowing pipeline passes through a gap formed among the plurality of sections of battery cells; the water pump drives the heat conduction medium to realize circulation flowing inside the pipeline; the temperature collecting probe and the heating and refrigeration assembly are electrically connected with the BMS; the BMS controls the heating and refrigeration assembly to work according to the temperature information feedback by the temperature collecting probe; the heating and refrigeration assembly and the liquid flowing pipeline perform heat exchange through a water cooling head so as to realize the heating and the refrigeration on the heat conduction media inside the liquid flowing pipeline; the whole temperature control system is directly controlled by the BMS. The battery system is provided with the temperature collecting probe, the heating and refrigeration assembly and the BMS; the environment temperature of the battery cells is regulated through controlling the temperature of the heat conduction media inside the liquid flowing pipeline, so that the battery cells always work in a set temperature range.
Description
Technical field
The present invention relates to cell art, more particularly, to a kind of battery system.
Background technology
In recent years, lithium battery started slowly to enter electric bicycle market, made the convenient ring of trip of electric bicycle
Protect, in general, the lithium battery of electric bicycle consists of the following components：(battery core is a variety of according to encapsulation point, mainly for battery
Have Soft Roll, duricrust, 18650 box hats), BMS circuit control system, internal connecting wire, battery-pack exterior casing, set of cells possesses short circuit
Protection, overcurrent protection, overvoltage protection, under-voltage protection, low-temperature protection, temperature over-range protection, contrast lead-acid battery possesses multiple guarantor
Shield is safer, because the very high innate advantage of lithium cell energy density itself, lead-acid battery relatively possesses small volume, weight
Light advantage, life-span have a certain upgrade.
But, on the lithium battery of present electric bicycle or even market, popularity rate highest lead-acid battery has clearly
Defect, current lithium battery is mainly the problem of the following aspects：
1st, because internal battery pack design problem is it is easy to causing thermal runaway and causing security incident, current electricity
Dynamic bicycle lithium battery, because the consideration of secure context can only reduce performance, causes lithium battery to contrast lead-acid battery in performance and does not have
Advantageous；
2nd, do not improved for the impact to battery of low temperature and hot environment, relatively even lead-acid battery is also very
Significantly inferior position, subject matter is exactly that lithium battery can not charge less than 0 DEG C in temperature, if forced charge can cause safety hidden
Suffer from, charge and using danger also on fire from explosion in hot weather；
3rd, because design problem causes internal battery pack concordance cannot be guaranteed, make the service life of lithium battery significantly under
Fall, in prior art, the service life of lithium battery of lithium cell electric bicycle is 1.5～2 times of lead-acid battery, and price is 3～4
Again, at 1 year 1～2 year, the ordinary life of current lithium battery is left at 3 years 1～5 year for the ordinary life of current lead-acid battery
The right side, actually used get off, as consumer, lithium battery use cost is higher.
4th, the intelligence degree of electric bicycle is too low, user using not convenient and not safe, such as battery from
After driving body, circuit connection socket is still powered, has potential safety hazard, and child utilizes shears, screwdriver, coin insertion socket meeting
Cause short circuit, cause security incident.
In sum, market is badly in need of one kind and can overcome disadvantages mentioned above, General Promotion electric bicycle power source performance
Battery system.
Content of the invention
It is an object of the invention to provide a kind of battery system, existed with solving electric bicycle battery in prior art
Heat dispersion poor, at high temperature easy to charge occur dangerous；At low temperature, cannot realize charging it is impossible to meet partly again
The use demand in domain；And, the higher shortcoming of use cost.
To achieve these goals, the present invention provides a kind of battery system, visits including shell, more piece battery core, temperature acquisition
Head, BMS, heating cooling assembly, liquid flow line, heat-conducting medium and water pump；
Described more piece battery core arrangement is fixed on the inside of shell, realizes electrical connection by pole plate between battery core；Described liquid
Flow line coils inside the housing, and liquid flow line is through the gap more piece battery core；Described heat-conducting medium is contained in
In liquid flow line, described water pump is connected with liquid flow line；Described BMS is connected with water pump by the first drive module,
To drive heat-conducting medium to flow in liquid flow line by water pump；
Described temperature acquisition probe is arranged on the inside of shell, and described temperature acquisition probe is electric with the signal input part of BMS
Connect, the signal output part of described BMS is passed through the second drive module and electrically connected with heating cooling assembly, enables BMS according to temperature
The temperature information that degree acquisition probe records controls heating cooling assembly work；Described heating cooling assembly and liquid flow line heat
Contact, to realize to the heat-conducting medium heating in liquid flow line or to freeze；
Described BMS is provided with power module, described power module respectively with temperature acquisition probe, BMS, heating cooling assembly with
And water pump electrical connection, the different voltages of photovoltaic conversion one-tenth that battery core or charger are provided by power module, adopted with being respectively temperature
Collection probe, BMS, heating cooling assembly and water pump are powered.
Further, described liquid flow line includes the first flow line and the second flow line, described first flowing
Pipeline and the second flow line are arranged side by side, the flow direction of heat-conducting medium and the first flow line in described first flow line
The flow direction of middle heat-conducting medium is contrary.
Further, the shape of described first flow line and the second flow line is identical, and is in be arranged above and below；
Described first flow line includes end to end, integrally formed two sections；First paragraph pipeline constitutes one " door " font,
First paragraph pipeline forms a total installation region as frame；Second segment pipe is coiled in this total installation region in serpentine, will always pacify
Dress region is divided into that area is identical, some sub- installation regions of shape identical, and more piece battery core is in multigroup, uniformly neat to be arranged in son
In installation region.
Further, described shell includes heat-insulation layer exterior wall, heat-insulation layer and heat-insulation layer interior wall, described heat-insulation layer interior wall peace
It is contained in inside heat-insulation layer exterior wall, described heat-insulation layer exterior wall and heat-insulation layer interior wall surround a gap, described heat-insulation layer is filled in described
In gap；
This battery system also includes battery core fixed support, and described battery core fixed support is arranged on inside heat-insulation layer interior wall, many
Economize on electricity core is arranged on battery core fixed support；Pass through between described liquid flow line, more piece battery core and battery core fixed support
Casting glue embedding.
Further, more piece battery core is divided into multigroup, and battery core in every group realizes electrical connection, the pole plates of different groups by pole plate
Between by length identical wire realize electrical connection, make the connection resistance of different battery cores identical.
Further, this battery system also includes power supply and signal plug, and described BMS is provided with metal-oxide-semiconductor, described battery core total
Outfan is electrically connected with power supply and signal plug by this metal-oxide-semiconductor；Described BMS passes through communication module and power supply and signal plug electricity
Connect, to realize being connected with the communication of onboard instruments.
Further, described BMS connects each group of battery core of internal battery pack by equilibrium line, is detected by equilibrium line and adjusts
Save the voltage of each group of battery core；Described BMS carries multiple balanced discharge circuit with battery core string number identical, each balanced discharge electricity
Road by equilibrium line connect one group of battery core, when BMS detect part battery core complete charge when, BMS pass through connected putting
Circuit discharges for battery core, waits underfill battery core to be completely filled with.
Further, described BMS is provided with the Hall Element Current Sensor for measuring battery electric quantity；And be used for positioning
GPS module with communication.
Further, often economize on electricity core is all electrically connected with pole plate by electric fuse.
Further, described heating cooling assembly includes water-cooling head, cooling piece and heat-pipe radiator；Described cooling piece is one
Freeze in face, the semiconductor element simultaneously heating；Described second drive module is electrically connected with cooling piece and heat-pipe radiator respectively, the
Two drive modules are capable of the both positive and negative polarity switching of cooling piece supply line；Described water-cooling head and heat-pipe radiator are separately fixed at
The both sides of cooling piece, described water-cooling head and liquid flowing pipeline connection.
The battery system providing compared to prior art, the present invention, is provided with temperature acquisition probe and BMS, and temperature acquisition is visited
The temperature information of head collection inside the shell, this temperature is the ambient temperature of battery core, and BMS is according to the temperature letter of temperature acquisition probe collection
Breath controls heating cooling assembly：When the ambient temperature of battery core is higher, then heating cooling assembly refrigeration, carries out cold to heat-conducting medium
But, and by liquid flow line reduce the ambient temperature of battery core；When the ambient temperature of battery core is relatively low, then heat cooling assembly system
Heat, heats to heat-conducting medium, improves the ambient temperature of battery core by liquid flow line；Battery core is made to have been in set point
Temperature in.
And, by heating the heating function of cooling assembly, can improve outer first in the case that outdoor environment is relatively low
Temperature in shell, when reaching safety value, is charging it is ensured that the charging safety of battery core to battery core, so that this battery system is existed
Use in low temperature environment, meet the use demand of low temp area.
Additionally, the battery system that the present invention provides, employ the mode of liquid medium circulation temperature lowering or intensification：Not only radiate
Faster, and its radiating of the battery core of each position or the effect be heated are more uniform, the overall concordance of battery is preferable.
Brief description
In order to be illustrated more clearly that the specific embodiment of the invention or technical scheme of the prior art, below will be to concrete
In embodiment or description of the prior art the accompanying drawing of required use be briefly described it should be apparent that, below describe in
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not paying creative work
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 provides the internal structure top view of battery system for the present invention；
Fig. 2 provides the internal structure rearview of battery system for the present invention；
Fig. 3 provides the explosive view of battery system for the present invention；
Fig. 4 provides the three-dimensional structure diagram of the liquid flow line of battery system for the present invention；
Fig. 5 provides the electrical structure connection figure of battery system for the present invention；
Fig. 6 provides the electrical structure block diagram of the BMS of battery system for the present invention.
Reference：
11- shell；12- battery core；13- pole plate；
14- temperature acquisition is popped one's head in； 15-BMS；16- power module；
17- heats cooling assembly；18- liquid flow line；19- water pump；
20- battery core fixed support；21- power supply and signal plug；22- electric fuse；
111- heat-insulation layer exterior wall；112- heat-insulation layer；113- heat-insulation layer interior wall；
114- air inlet；115- gas outlet；151- central processing unit；
152- first drive module；153- second drive module；154- equilibrium line；
155-MOS manages；156- discharge resistance；157- audion；
158-GPS module；171- water-cooling head；172- cooling piece；
173- heat-pipe radiator；181- first flow line；182- second flow line.
Specific embodiment
Below in conjunction with accompanying drawing, technical scheme is clearly and completely described with the enforcement it is clear that described
Example is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of not making creative work, broadly falls into the scope of protection of the invention.
In describing the invention, it should be noted that term " " center ", " on ", D score, "left", "right", " vertical ",
The orientation of instruction such as " level ", " interior ", " outward " or position relationship are based on orientation shown in the drawings or position relationship, merely to
Be easy to describe the present invention and simplify description, rather than instruction or the hint device of indication or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or hint relative importance.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or is integrally connected；Can
To be to be mechanically connected or electrical connection；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Fig. 1 provides the internal structure top view of battery system for the present invention；Fig. 2 provides the inside of battery system for the present invention
Structure rearview；Fig. 3 provides the explosive view of battery system for the present invention；Fig. 4 provides the liquid flowing of battery system for the present invention
The three-dimensional structure diagram of pipeline；Fig. 5 provides the electrical structure connection figure of battery system for the present invention；Fig. 6 provides battery for the present invention
The electrical structure block diagram of the BMS of system.
As shown in figures 1 to 6, the present invention provides a kind of battery system, including shell 11, more piece battery core 12, temperature acquisition probe
14th, BMS15 (i.e. BATTERY MANAGEMENT SYSTEM, battery system), heating cooling assembly 17, liquid flow line 18,
Heat-conducting medium and water pump 19；
Described more piece battery core 12 arrangement is fixed on the inside of shell 11, passes through pole plate 13 and realize electrical connection between battery core 12；
Described liquid flow line 18 is coiled in inside shell 11, and liquid flow line 18 is through the gap more piece battery core 12；Institute
State heat-conducting medium to be contained in liquid flow line 18, described water pump 19 is connected with liquid flow line 18；Described BMS15 passes through
First drive module 152 is connected with water pump 19, to drive heat-conducting medium to flow in liquid flow line 18 by water pump 19；
Described temperature acquisition probe 14 is arranged on the inside of shell 11, the signal of described temperature acquisition probe 14 and BMS15
Input electrically connects, and the signal output part of described BMS15 is passed through the second drive module 153 and electrically connected with heating cooling assembly 17,
BMS15 is enable to control heating cooling assembly 17 to work according to the temperature information that temperature acquisition probe 14 records；Described heating system
Cold assembly 17 is thermally contacted with liquid flow line 18, to realize to the heat-conducting medium heating in liquid flow line 18 or to make
Cold；
Described power module 16 is electrically connected with temperature acquisition probe 14, BMS15, heating cooling assembly 17 and water pump 19 respectively
Connect, the photovoltaic conversion that battery core 12 or charger provide is become different voltages by power module 16, to be respectively temperature acquisition probe
14th, BMS15, heating cooling assembly 17 and water pump 19 are powered.
Compared to prior art, the present invention provides a kind of battery system, is provided with temperature acquisition probe 14 and BMS15, temperature
Acquisition probe 14 gathers the temperature information in shell 11, and this temperature is the ambient temperature of battery core 12, and BMS15 visits according to temperature acquisition
The temperature informations of 14 collections control heating cooling assemblies 17：When the ambient temperature of battery core 12 is higher, then heat cooling assembly 17
Refrigeration, cools down to heat-conducting medium, and reduces the ambient temperature of battery core 12 by liquid flow line 18；Ring when battery core 12
Border temperature is relatively low, then heating cooling assembly 17 heats, and heat-conducting medium is heated, and improves battery core 12 by liquid flow line 18
Ambient temperature；Battery core 12 is made to have been at when needed in the temperature in set point.
It should be noted that above-mentioned by the constant temperature systems that constitute of temperature acquisition probe 14 and BMS15, only just work when needed
Make.Do not charge in vehicle, in the case of also not riding, will not start, constant temperature system only can open charging and riding
Dynamic, when riding, can also be set as not starting also dependent on practical situation, constant temperature system is primarily directed to charge and works
, just understand force start it is also possible to user oneself sets as desired except the use environment temperature of non-vehicle is less than -5 DEG C of systems
Fixed.
The charging temperature of common lithium battery is 0 DEG C～45 DEG C, and discharge temp is -20 DEG C～60 DEG C, fills less than limiting temperature
Electricity can cause battery core 12 internal structure to damage, and cause battery core 12 internal short-circuit, and cause security incident；Charge higher than limiting temperature
Use, battery core 12 life-span can be caused with irreversible damage, serious even directly damages.
Therefore, by the above-mentioned function of temperature control of the present invention, ensure that battery core 12 operationally, have been at safe temperature
In the range of degree, be conducive to keeping the safe and stable work of battery core 12.
Especially most of all, passing through to heat the heating function of cooling assembly 17, can be in the relatively low situation of outdoor environment
Under, improve the temperature in shell 11 first, when reaching safety value, charging it is ensured that the charging safety of battery core 12 to battery core 12,
So that this battery system is used in low temperature environment, meet the use demand of low temp area.
For example, using the present invention provide battery system electric bicycle, can in the Northeast of China, -25 DEG C
Use in environment, greatly improve the scope of application of electric bicycle.
And, the quantity of temperature acquisition probe 14 is not unique, can arrange multiple, be separately mounted within shell 11
Diverse location, to react shell 11 internal temperature equilibrium situation.
The battery system that the present invention provides, employs the mode of liquid medium circulation temperature lowering or intensification：Heating cooling assembly
17 pairs of heat-conducting medium heating or cooling, water pump 19 drives heat-conducting medium to flow in liquid flow line 18, battery core 12 is produced
Raw heat goes out shell 11 by the fluxion strap of heat-conducting medium, or by the heat transfer of heat-conducting medium to shell 11 each position interior
The battery core 12 put.Liquid medium adopts anti-icing fluid, prevents freezing blood circulation under extremely cold environment from causing whole battery system
Damage.
The wind cooling temperature lowering mode commonly used compared in prior art, the side of this liquid medium circulation temperature lowering or intensification
Formula, not only radiates faster, and its radiating of the battery core 12 of each position or the effect be heated are more uniform, overall consistent of battery
Property is preferable.
Refering to Fig. 4, in the present embodiment, described liquid flow line 18 includes the first flow line 181 and the second flowing
Pipeline 182, described first flow line 181 and the second flow line 182 are arranged side by side, and lead in described first flow line 181
The flow direction of thermal medium is contrary with the flow direction of heat-conducting medium in the first flow line 181.
Specifically, described first flow line 181 is identical with the shape of the second flow line 182, and is in be arranged above and below；
Described first flow line 181 includes end to end, integrally formed two sections；First paragraph pipeline constitutes one " door " word
Shape, first paragraph pipeline forms a total installation region as frame；Second segment pipe is coiled in serpentine in this total installation region, will
Total installation region is divided into that area is identical, some sub- installation regions of shape identical, and more piece battery core 12 is in multigroup, uniformly neat row
It is listed in sub- installation region.
When being flowed in flow line due to heat-conducting medium, temperature gradually changes, therefore, the diverse location of heat pipe
Heat dispersion be different, can cause local.Therefore, the liquid flow line 18 of the present invention adopts two-way flow to design, profit
It is less than 2 DEG C with the temperature difference that the heat-conducting medium of two-way flow ensures each economize on electricity core 12 of each position in shell 11, therefore, tool
Standby high consistency.
The in-built principle of lithium battery with the operation principle of chain is, as long as centre have one section damage will
Cause overall damage, the life-span of lithium battery is exactly the life-span of that worst battery core 12 of internal battery pack in fact, so entirely
The concordance of system is very big to the aging effects of battery system.
The life-span of lithium battery system currently on the market very low 80%～90% is all the conforming problem of internal battery pack
Cause part battery core 12 life-span to terminate in advance, cause whole battery life to terminate in advance.The battery system that the present invention provides, leads to
Cross above-mentioned two-way flow design it is ensured that high consistency, the service life of battery can be effectively improved.
In fact, the battery system that the present invention provides, test through Life Cycle and confirm, battery actual life can reach
1200 circulation volume residues 80%, 1500 circulation volume residues 70%, 1700 circulation volume residues 60%, the longevity of battery
Life can reach more than 10 years, and is the service life that life-time service fills soon.
In the present embodiment, described shell 11 includes heat-insulation layer exterior wall 111, heat-insulation layer 112 and heat-insulation layer interior wall 113,
Described heat-insulation layer interior wall 113 is arranged on inside heat-insulation layer exterior wall 111, and described heat-insulation layer exterior wall 111 and heat-insulation layer interior wall 113 surround
One gap, described heat-insulation layer 112 is filled in described gap.
The above-mentioned insulation construction of shell 11, can stop heat from running off in the case that ambient temperature is extremely low it is also possible to hinder
Heat in the case of only ambient temperature is high enters, and reduces the interference of the temperature of the interior environment to shell 11 for the ambient temperature,
Be conducive to the temperature in constant temperature system precise control shell 11.
BMS15 and heating cooling assembly 17 are active homoiothermic, and the insulation construction of shell 11 plays passive homoiothermic, and both adjust
Warm mode combines, can efficiently and energy-conservation adjustment temperature, reach good temperature control effect.Electric bicycle can be allowed -30
DEG C and 50 DEG C of extreme environment normal work, the performance of battery and life-span be not affected.
The battery system that the present invention provides, can allow battery core 12 be maintained at optimum state work, in performance and the longevity of battery
Life all performs to the limit, by its good heat dispersion, can fully achieve and fill function soon；And there is a liter temperature function, solution
Certainly the not enough problem of Northeast China, North China and northwest winter battery durable, solves the problems, such as can not charge under low temperature environment.
Additionally, the insulation construction of above-mentioned shell 11 can also strengthen the anti seismic efficiency of whole set of cells.
In the present embodiment, this battery system also includes battery core fixed support 20, and described battery core fixed support 20 is arranged on
Inside heat-insulation layer interior wall 113, more piece battery core 12 is arranged on battery core fixed support 20；Described liquid flow line 18, many economize on electricitys
Pass through casting glue embedding between core 12 and battery core fixed support 20.
Battery core 12, battery core fixed support 20 and liquid flow line 18 form an entirety by casting glue embedding, coagulate
Gu after casting glue very firm, possess very high heat conductivity, flow between battery core 12 and liquid flow line 18 beneficial to heat
Dynamic.Additionally, the integrative-structure that embedding is formed also improves the shock resistance of whole battery system.
In short, the BMS15 that the present invention provides except possess that common power protection module possesses under-voltage, over-pressed,
Outside excessively stream, short circuit, high temperature, low temperature sixfold are protected, it is also equipped with seven big functions：1st, internal battery pack each economize on electricity core 12 voltage inspection
Survey；2nd, internal battery pack battery core 12 electric voltage equalization is adjusted；3rd, temperature control is adjusted；4th, GPS location communication；5th, control and charger in vehicle
Communication connects；6th, battery electric quantity accurate measurement；7th, after battery is connected disconnection with vehicle circuit, it is automatically switched off electricity output.
Specifically, refering to Fig. 5 and Fig. 6, described BMS15 is provided with metal-oxide-semiconductor 155, and total outfan of described battery core 12 passes through
This metal-oxide-semiconductor 155 is electrically connected with the power supply of battery system and signal plug 21；Described BMS15 is by by communication module and power supply
And signal plug 21 electrically connects, to realize being connected with the communication of onboard instruments.BMS15 can connect car by in-car communication bus
Control, instrument, charger in, make the various vehicle components can be with collaborative work, and last BMS15 is joined by built-in GPS module
Net, real mobile phone APP checks vehicle condition and carries out remotely control as needed.
BMS15 controls the switch of main circuit by metal-oxide-semiconductor 155, and its effect has two：
One, when charging, if the temperature that temperature acquisition probe 14 records within shell 11 is too high or too low, BMS15
Main circuit is disconnected by metal-oxide-semiconductor 155, realizes high/low temperature protection；In system worked well the overvoltage protection of BMS, under-voltage protection,
Overcurrent protection, short-circuit protection are all to cut off circuit realiration by controlling MOS electronic switching tube；
In summary, BMS15 and temperature acquisition probe 14 composition temperature control system, can achieve three functions：1st, pass through metal-oxide-semiconductor
155 cut-out main circuits, realize high/low temperature protection；2nd, pass through to control in heating cooling assembly 17, heating or cooling water-cooling head 171
The heat-conducting medium in portion, the heat-conducting medium finally by 19 flowings of water pump brings internal battery pack into, realizes internal battery pack temperature
Control；3rd, pass through to contrast the temperature signal of multiple temperature acquisition probe 14 feedbacks, vehicle driver can be looked into by onboard instruments
See shell 11 internal temperature equilibrium situation.
Two, BMS15, when can't detect vehicle and charger connects, can close electricity by metal-oxide-semiconductor 155 and export battery
Supply socket, after can effectively preventing battery from leaving car body, child utilize the conductor such as shears, screwdriver, coin insert power supply
Socket and the short-circuit electric shock accidentss that cause.
Described BMS15 by equilibrium line 154 connect each group of battery core 12 of internal battery pack, by equilibrium line 154 detection and
Adjust the voltage of each group of battery core 12；Ensure that each group of battery core 12 voltage height is consistent, internal battery pack each economize on electricity core 12 electricity
Pressure and all battery cores 12 electric voltage equalization situation can be checked by onboard instruments.
BMS15 possesses self-checking function simultaneously, if equilibrium line 154 breaks, causes BMS15 to lose to fault equilibrium line
The detection of 154 connection battery cores 12 and control；Or temperature probe holding wire breaks, and so that BMS15 is lost to internal battery pack temperature
Power of test, causes internal battery pack temperature protection and temperature adjustment ability abnormal；BMS15 can send failure alarm signal to
Onboard instruments, remind the personnel of driving to be keeped in repair.
Described BMS15 also includes multiple discharge circuits (BMS equalization function), and every discharge circuit is electrically connected with a battery core 12
Connect.Specifically, discharge circuit includes discharge resistance 156 and audion 157, and described discharge resistance 156 is with audion 157 even
Connect, described audion 157 is connected with battery core 12, the central processing unit 151 of BMS15 is connected with audion 157, to control electric discharge electricity
The switch on road.
When by equilibrium line 154, BMS15 monitors that the voltage of a battery core 12 reaches preset value, i.e. charging complete, and its
When his battery core 12 not yet completes to charge, BMS15 passes through to control electrical switch, connects discharge circuit, makes the electricity of charging complete
Core 12 is discharged by discharge resistance 156, waits other battery cores to be charged to preset value, it is to avoid part battery core charges discontented and overcharges existing
As.
Described BMS15 is provided with Hall Element Current Sensor；By the high-precision current measuring cell on main circuit i.e. suddenly
That element current sensor, the data of measurement carries out electricity and accurately calculates, and precision can reach 0.2%F S, finally by car
Load instrument is shown to vehicle user of service and checks.
BMS15 is also built-in with GPS module 158, can realize two big functions by GPS module 158：
First, position, GPS module 158 moment is carried out accurately by mobile phone signal (communication base station) and gps satellite framing signal
Positioning, by Mobile phone card, location data being sent to server provides user to check, the battery of d GPS locating module built-in enter one
Step strengthens the security performance of vehicle, makes the safe antitheft of vehicle more secure；
2nd, the Mobile phone card being carried by d GPS locating module can be the battery electric quantity of electric motor car, battery and electric bicycle
The health status of inside, charging or transport condition data are sent to server, and so that mobile phone app checks, mobile phone app also may be used
With transmission power-off, recovery, charger starts and the instruction such as closing, charging rate regulation, constant temperature system startup and regulation is passed through to take
Business device is transferred to GPS module 158 and realizes controlling, using more safely and convenient；
Networked finally by GPS module 158 built-in mobile phone card, realize Vehicular intelligentization and control；The communication number of BMS15
It is connected with vehicle and charger by Special-purpose power socket according to line, then charger can connect battery by vehicle can also be straight
Connect battery in succession.
In the present embodiment, in addition to BMS15, it is also provided with a set of security system it is ensured that battery core 12 is in extreme case
Under, do not burn and do not explode.Between every economize on electricity core 12 and the pole plate 13 of main circuit, it is connected an electric fuse 22, battery core 12 electricity respectively
The output of amount and input will be through electric fuses 22, if internal battery pack has an economize on electricity core 12 because quality problems or set of cells
Operate lack of standardization during production, cause internal battery pack short circuit, and when BMS15 can not play a protective role, electric fuse 22 melts disconnected, cuts
Power-off core 12 and the connection of main circuit, can ensure the absolute of battery under the extreme case of other each protection system all inefficacies
Safety.
More piece battery core 12 is divided into multigroup, and battery core 12 in every group is passed through pole plate 13 and realized electrical connection, the pole plates 13 of different groups
Between by length identical wire realize electrical connection, make the connection resistance of different battery cores 12 identical.In the case of high current,
Often the contact resistance of economize on electricity core 12 is identical, and the electric current that each economize on electricity core 12 passes through uniformly, will not destroy because of circuit connectivity problem
The uniqueness of system.
In the present embodiment, described heating cooling assembly 17 includes water-cooling head 171, cooling piece 172 and heat-pipe radiator
173；Described cooling piece 172 is that one side is freezed, the semiconductor element simultaneously heating；Described second drive module 153 respectively with system
Cold 172 and heat-pipe radiator 173 electrically connect, and the second drive module 153 is capable of the both positive and negative polarity of cooling piece 172 supply line
Switching；Described water-cooling head 171 and heat-pipe radiator 173 are separately fixed at both sides, described water-cooling head 171 and the liquid of cooling piece 172
Body flow line 18 connects.
Central processing unit 151 directly controls the second drive module 153 to export positive counter current to cooling piece 172, and switching is flow through
The sense of current of cooling piece 172 can realize the switching of cooling piece 172 cold and hot surface, realizes heating and the refrigeration work(of cooling piece 172
Energy；Liquid medium brings heat and take out of into internal battery pack by pipeline, realizes internal temperature equilibrium simultaneously.
Heat-pipe radiator 173 includes radiator fan, and shell 11 is provided with radiator air air inlet 114 and radiator air
Gas outlet 115.
The operation principle of heating cooling assembly 17 is as follows：
Temperature information in temperature acquisition probe 14 collection shell 11, this temperature is the ambient temperature of battery core 12, BMS15 root
Temperature information according to temperature acquisition probe 14 collection controls heating cooling assembly 17：
When temperature acquisition probe 14 collect battery core 12 ambient temperature higher, BMS15 central processing unit 151 send
Cooling control signal, the second drive module 153 controls positive connection cooling piece 172, now the inner side refrigeration of cooling piece 172, outward
Side heats, and the heat in liquid flow line 18 passes to cooling piece 172, the heat of cooling piece 172, bag by water-cooling head 171
Thermogenetic heat is made in the outside containing cooling piece 172, gives out shell 11 with heat-pipe radiator 173；Cause the environment temperature of battery core 12
Degree reduces；
When temperature acquisition probe 14 collect battery core 12 ambient temperature relatively low, the central processing unit 151 of BMS15 sends liter
Warm control signal, the second drive module 153 reversely connects cooling piece 172, and now the inner side of cooling piece 172 heats, and freezes in outside,
Thermogenetic heat is made in cooling piece 172 inner side, passes to water-cooling head 171, passes to heat-conducting medium in liquid flow line 18；
The ambient temperature causing battery core 12 raises.
By above-mentioned regulation process, battery core 12 is made to have been at work in set point.
Finally it should be noted that：Various embodiments above only in order to technical scheme to be described, is not intended to limit；To the greatest extent
Pipe has been described in detail to the present invention with reference to foregoing embodiments, it will be understood by those within the art that：Its according to
So the technical scheme described in foregoing embodiments can be modified, or wherein some or all of technical characteristic is entered
Row equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of battery system is it is characterised in that include shell, more piece battery core, temperature acquisition probe, BMS, heating refrigeration train
Part, liquid flow line, heat-conducting medium and water pump；
Described more piece battery core arrangement is fixed on the inside of shell, realizes electrical connection by pole plate between battery core；Described liquid flowing
Pipeline coils inside the housing, and liquid flow line is through the gap more piece battery core；Described heat-conducting medium is contained in liquid
In flow line, described water pump is connected with liquid flow line；Described BMS is connected with water pump by the first drive module, with logical
Crossing water pump drives heat-conducting medium to flow in liquid flow line；
Described temperature acquisition probe is arranged on the inside of shell, and described temperature acquisition probe is electrically connected with the signal input part of BMS,
The signal output part of described BMS is passed through the second drive module and is electrically connected with heating cooling assembly, enables BMS according to temperature acquisition
The temperature information recording of popping one's head in controls heating cooling assembly work；Described heating cooling assembly is thermally contacted with liquid flow line,
To realize to the heat-conducting medium heating in liquid flow line or to freeze；
Described BMS is provided with power module, described power module respectively with temperature acquisition probe, BMS, heating cooling assembly and water
Pump electrically connects, and the photovoltaic conversion that battery core or charger provide is become different voltages by power module, to be respectively temperature acquisition spy
Head, BMS, heating cooling assembly and water pump are powered.
2. battery system according to claim 1 is it is characterised in that described liquid flow line includes the first flow line
With the second flow line, described first flow line and the second flow line be arranged side by side, heat conduction in described first flow line
The flow direction of medium is contrary with the flow direction of heat-conducting medium in the first flow line.
3. battery system according to claim 2 is it is characterised in that described first flow line and the second flow line
Shape is identical, and is in be arranged above and below；
Described first flow line includes end to end, integrally formed two sections；First paragraph pipeline composition one " door " font, first
Duan Guanlu forms a total installation region as frame；Second segment pipe is coiled in serpentine in this total installation region, by total installing zone
Domain is divided into that area is identical, some sub- installation regions of shape identical, and more piece battery core is in multigroup, uniformly neat to be arranged in sub- installation
In region.
4. battery system according to claim 1 it is characterised in that described shell include heat-insulation layer exterior wall, heat-insulation layer with
And heat-insulation layer interior wall, described heat-insulation layer interior wall is arranged on inside heat-insulation layer exterior wall, walled in described heat-insulation layer exterior wall and heat-insulation layer
Become a gap, described heat-insulation layer is filled in described gap；
This battery system also includes battery core fixed support, and described battery core fixed support is arranged on inside heat-insulation layer interior wall, economizes on electricity more
Core is arranged on battery core fixed support；Pass through embedding between described liquid flow line, more piece battery core and battery core fixed support
Glue embedding.
5. battery system according to claim 1 it is characterised in that more piece battery core is divided into multigroup, lead to by battery core in every group
Cross pole plate and realize electrical connection, between the pole plate of different groups, electrical connection is realized by length identical wire, make the company of different battery cores
Connecting resistance is identical.
6. battery system according to claim 1 is it is characterised in that this battery system also includes power supply and signal plug,
Described BMS is provided with metal-oxide-semiconductor, and total outfan of described battery core is electrically connected with power supply and signal plug by this metal-oxide-semiconductor；Described BMS
Electrically connected with power supply and signal plug by communication module, to realize being connected with the communication of onboard instruments.
7. battery system according to claim 6 is it is characterised in that described BMS connects internal battery pack by equilibrium line
Each group of battery core, detects and adjusts the voltage of each group of battery core by equilibrium line；Described BMS carries many with battery core string number identical
Individual balanced discharge circuit, each balanced discharge circuit connects one group of battery core by equilibrium line, completes when BMS detects part battery core
During charging, BMS is discharged for battery core by connected discharge circuit, waits underfill battery core to be completely filled with.
8. the battery system according to claim 6 or 7 is it is characterised in that described BMS is provided with for measuring battery electric quantity
Hall Element Current Sensor；And the GPS module for positioning and communication.
9. battery system according to claim 6 is it is characterised in that the core that often economizes on electricity all is electrically connected with pole plate by electric fuse
Connect.
10. battery system according to claim 1 is it is characterised in that described heating cooling assembly includes water-cooling head, refrigeration
Piece and heat-pipe radiator；Described cooling piece is that one side is freezed, the semiconductor element simultaneously heating；Described second drive module is respectively
Electrically connect with cooling piece and heat-pipe radiator, the second drive module is capable of the both positive and negative polarity switching of cooling piece supply line；Institute
State water-cooling head and heat-pipe radiator is separately fixed at the both sides of cooling piece, described water-cooling head and liquid flowing pipeline connection.
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| CN201611085115.0A CN106384852B (en) | 2016-11-30 | 2016-11-30 | Battery system |
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|---|---|---|---|
| CN201611085115.0A CN106384852B (en) | 2016-11-30 | 2016-11-30 | Battery system |
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| CN106384852B CN106384852B (en) | 2019-01-29 |
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| CN107317065A (en) * | 2017-06-23 | 2017-11-03 | 东风商用车有限公司 | A kind of power battery thermal management system and its control method based on TEC |
| CN107768564A (en) * | 2017-09-21 | 2018-03-06 | 常州普莱德新能源电池科技有限公司 | Battery case and its heat management system |
| CN108417926A (en) * | 2017-02-09 | 2018-08-17 | 浙江三花汽车零部件有限公司 | Power battery assembly and electric vehicle |
| CN109546235A (en) * | 2018-10-09 | 2019-03-29 | 深圳欣旺达智能科技有限公司 | Control method, device, electronic equipment and the storage medium of lithium battery |
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| CN112891790A (en) * | 2021-03-24 | 2021-06-04 | 深圳纬安动力科技有限公司 | Lithium battery fire-fighting device with electric valves and various sensors |
| CN113247152B (en) * | 2021-05-14 | 2022-08-05 | 台州市佑吉车业科技股份有限公司 | Long-acting endurance type three-lithium battery new energy motorcycle |
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| CN113611941A (en) * | 2021-06-17 | 2021-11-05 | 赵文英 | Control method for thermal runaway of lithium battery pack, control panel and temperature control equipment |
| CN113611941B (en) * | 2021-06-17 | 2022-12-27 | 赵文英 | Control method and control panel for thermal runaway of lithium battery pack and temperature control equipment |
| CN113619442A (en) * | 2021-08-23 | 2021-11-09 | 成都精锐环科技有限公司 | Electric vehicle energy management method and system based on distributed batteries |
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| CN116505107A (en) * | 2023-06-29 | 2023-07-28 | 深圳市岳松科技有限公司 | Battery BMS protection board and battery pack |
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