CN109755676A - A kind of balanced and heating integrated system of battery - Google Patents
A kind of balanced and heating integrated system of battery Download PDFInfo
- Publication number
- CN109755676A CN109755676A CN201910171495.7A CN201910171495A CN109755676A CN 109755676 A CN109755676 A CN 109755676A CN 201910171495 A CN201910171495 A CN 201910171495A CN 109755676 A CN109755676 A CN 109755676A
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- battery
- heating
- power supply
- switch
- circuit
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 85
- 230000000694 effects Effects 0.000 claims description 12
- 230000036413 temperature sense Effects 0.000 claims description 2
- 230000006698 induction Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
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- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of equilibriums of battery and heating integrated system, including power supply, are thermally integrated circuit, temperature sensing device；The power supply includes the charge power supply of battery of the power supply B that battery provides and outside；Being thermally integrated circuit includes balance module and heating module；Balance module includes the shunt circuit of each modular power source B of battery and the shunt circuit of heating film R, and two shunt circuits are connected by series circuit；Each battery module is corresponding to provide a power supply B, and each independent loop connects a switch k in power supply B parallel circuit；Each independent loop connects a switch S in the parallel circuit of heating film R；External charge power supply and each heating film R constitute the series loop of an entirety, constitute the heating module for being thermally integrated circuit；Switch k+ is set at external charging positive pole, switch k- is set at cathode.The heating system of equal balance system and battery system is integrated and shares into set of system by the present invention, and structure is simple, and economic and practical value is high.
Description
Technical field
The present invention relates to the technical fields of cell apparatus, and in particular to a kind of balanced and heating integrated system of battery.
Background technique
The equilibrium of battery refers in the use process of battery, because the reasons such as the individual difference of battery, temperature difference are made
It needs to cut height by passive equilibrium or pass through in order to avoid the deterioration of this uneven trend at battery terminal voltage imbalance
The mode of active equalization peak load shifting adjusts the voltage consistency of battery.In the prior art, the equalization function of battery management system
It is that the independent equalizing resistance that increases discharges, is limited to equalizing resistance power consumption, passive balanced electric current only has several hundred mA ranks
Industry level, portfolio effect are poor；In addition common secondary battery system (such as lithium battery system) 0 degree or less or lower temperature with
Under cannot charge directly, need to reach 0 DEG C or more by heating system heats to temperature before charging starts and carry out again
Charging, it is most for the only battery system with heating system currently on the market.Such battery system, due to battery system different location
Heat dispersal situations it is different, in charge and discharge process, there are the unbalanced situations of battery temperature, can not the active accommodation temperature difference.Only band is added
The battery system of hot systems, existing common heat protocol can only carry out system and integrally heat, due to battery system different location
Heat dispersal situations are different and the temperature difference situation complexity of starting heating, the power of optimization different zones heating anyway at present
Design all can not effectively solve the problems, such as that the temperature difference is big between battery after the completion of entire heating.
Summary of the invention
The present invention is in the prior art, and battery balanced function need to independently increase equal balance system and portfolio effect is poor, and electricity
The uneven problem of cell system heating, provides that a kind of structure is simple, meets the battery temperature uniformity of low-temperature heat, efficiently uses
Energy when battery balanced, efficiently uses original heating system, the high battery of reusability is thermally integrated system.In the present invention
Hold as follows:
A kind of equilibrium of battery and heating integrated system, including power supply, it is thermally integrated circuit, temperature sensing device；It is described
Power supply includes the charge power supply of battery of the power supply B that battery provides and outside；The circuit that is thermally integrated includes balance module and adds
Thermal modules；The balance module includes the shunt circuit of each modular power source B of battery and the shunt circuit of heating film R, and two is in parallel
Circuit is connected by series circuit；Each battery module, which corresponds to, provides a power supply B, each only in power supply B parallel circuit
Vertical circuit connects a switch k；Each independent loop connects a switch S in the parallel circuit of the heating film R；The outside is filled
Power supply and each heating film R constitute the series loop or shunt circuit of an entirety, constitute the heating module for being thermally integrated circuit；Institute
Setting switch k+ at external charging positive pole is stated, switch k- is set at cathode；
The battery balanced module Starting mode of the battery system are as follows: switch k+ and k-, while the k and S that closes a switch are disconnected,
The heating film R that the connection self-powered B of battery starts each parallel connection achievees the effect that balancing battery voltage；
The heating module Starting mode of the battery system are as follows: disconnect all switch k, judgement is incuded according to the battery temperature difference and is closed
Above or corresponding S is disconnected, while the k+ and k- that closes a switch, connection outside batteries charge power supply starts each concatenated heating film R and reaches
The heating effect of battery；
The differential temperature of each intermodule of temperature sensing device induced cell, and each independence is controlled by each temperature difference and is returned
Way switch k's and S opens or closes.
Further, the battery is battery module.
Further, the heating film is resistance heating wire or ptc heater.
The present invention is designed using switch matrix, and the equal balance system of battery system has been shared adding for battery system heating system
Hotting mask has reached following effect: 1, the heating system of equal balance system and battery system is integrated shares into set of system: utilizing heating
The high power characteristics of film break through the passive euqalizing current of conventional battery system and there was only mA without additionally increasing huge equal balance system
The limit of rank can reach several peaces even more than ten peace ranks.
2, the passive balanced energy to dissipate is utilized, temperature-compensating is done for battery system, reduce the temperature difference: battery of the present invention
According to the temperature difference situation of battery system when balanced, the corresponding heating film of the lower battery module of temperature is discharged in selection system
Equilibrium does temperature-compensating and reduces the temperature difference, is capable of the working condition of each module heating film of active control, and does not increase additionally excessive
Device.Meet battery temperature uniformity requirement, energy when being effectively utilized battery balanced.
3, heating system realizes local heating control, effectively reduces temperature difference: the heating process before low temperature charging can root
According to the temperature difference of battery system, controls heating system and carry out local heating, effectively control the temperature difference of battery system low-temperature heat.
Detailed description of the invention
Attached drawing 1 is the circuit diagram of present system.
Specific embodiment
Below in conjunction with the specific embodiment of the invention, technical solution in the embodiment of the present invention is carried out clearly and completely
Description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
As described in Figure 1, a kind of equilibrium of battery and heating integrated system, including power supply, it is thermally integrated circuit, temperature sense
Device (not shown)；The power supply includes that the power supply B that battery provides and external charge power supply of battery are (i.e. as shown in the figure
Charging anode and charging cathode)；The circuit that is thermally integrated includes balance module and heating module；The balance module includes electric power storage
The shunt circuit of each modular power source B in pond and the shunt circuit of heating film R, two shunt circuits are connected by series circuit；It is described every
A battery module is corresponding to provide a power supply B, and each independent loop connects a switch k in power supply B parallel circuit；The heating film
Each independent loop connects a switch S in the parallel circuit of R；The charge power supply of the outside and each heating film R composition one are whole
The series loop of body or shunt circuit constitute the heating module for being thermally integrated circuit；It is arranged at the external charging positive pole and opens
K+ is closed, switch k- is set at cathode；The differential temperature of each intermodule of temperature sensing device induced cell, and pass through each temperature difference
Opening or closing for each independent loop switch k and S is controlled, such as common battery management system (BMS).
The battery balanced module Starting mode of the battery system are as follows: switch k+ and k-, while the k and S that closes a switch are disconnected,
The heating film R that the connection self-powered B of battery starts each parallel connection achievees the effect that balancing battery voltage.
In attached drawing 1, B represents battery, k and behalf switch in figure, and in actual use, number of switches is according to actual battery mould
Number of blocks setting, battery module quantity is B1 to B (N) as shown in figure 1, then k is k1 to k (n+1), and s is s1 to s (N+1), switch choosing
Type carries out type selecting (such as metal-oxide-semiconductor) according to the voltage class of battery system, K+ and K- can share the electromagnetism in normal charge circuit after
Electric appliance.Heating film indicated using resistance R, heating system generally each battery module in design have corresponding one group of heating film into
Row heating, battery module and resistance quantity correspond, and the number of resistance R are arranged according to battery module B quantity as shown in the figure, i.e.,
R1 to R (N) as shown in the figure is a；Equalization Design is designed using independent circuit, is separated with battery voltage acquisition circuit, and the two uses
Communication modes interactive information.When to battery charging, charge circuit is formed by closure K+, K-, k1, k (n+1) and is charged.
When Balance route, when equalization control module determines that cell voltage pressure difference reaches triggering equilibrium condition, need to carry out
Passive balanced battery forms discharge loop by control switch k, K+, K-, S, heats the power of film resistance according to battery system
Heating effect design, carry out voltage and power designs according to different battery types, general power is up to tens watts, and electric current is up to number
Peace.For example heating film is designed as voltage rating 4.2V, power 20W, then rated current is 4.76A, much larger than conventional 100mA's
Euqalizing current.By controlling the opening time of equalizer switch, reach obvious portfolio effect.Conventional electricity is utilized in switch matrix part
The charge circuit and heating circuit of cell system.
The heating module Starting mode of the battery system are as follows: disconnect all switch k, judgement is incuded according to the battery temperature difference and is closed
Above or corresponding S is disconnected, while the k+ and k- that closes a switch, connection outside batteries charge power supply starts each concatenated heating film R and reaches
The heating effect of battery；
Passive balancing procedure can be lower needing to carry out temperature-compensating by determining the temperature of which battery, then opens correspondence
The heating membrane switch S of module discharges to the heating film of respective modules and heats.
In low-temperature charging heating process, if adding thermal resistance uses parallel way, opened by closure K+, K-, all S
It closes, the heating system in parallel of formation can carry out whole heating to battery system；If adding thermal resistance uses series system, by closing
K+, K-, switch S1 and S (N+1) are closed, the series connection heating system of formation can carry out whole heating to battery system.
Need module control for continuing heating is corresponding to open by determining the temperature difference of battery in low-temperature charging heating end
It closes and closes, others heating membrane switch disconnects.It is to be heated reach requirement to the temperature difference after, then disconnect all heating circuits, stop plus
Heat.
Further, the battery is battery module.
Further, the heating film is resistance heating wire or ptc heater.
It is battery balanced to need additionally to increase huge equal balance system, but battery can have that end voltage is inconsistent, if
Battery is not allowed to carry out equalizaing charge, then ensuring the consistency of battery terminal voltage, generally from the raw material of battery, production link
Guarantee the consistency of cell voltage, such as the crucial material such as the selection of battery material, especially electrolyte, pole plate, pressure-control valve
The selection of material.Its is secondary to ensure quality of battery installation, guarantees the consistency of battery installation status, as battery connection method,
The harmony etc. of torsion.Replace battery equalization system in such a way that other are complicated, and the present invention is by equal balance system and battery
The heating system of system is integrated to share into set of system, the working condition of each module heating film of active control, and does not increase additionally
Add excessive device, subtracted additional huge balancer, and expand euqalizing current, enhances equilibrium effect, reach simultaneously
The originally passive balanced energy to dissipate in vain is utilized.And realized by the control function of local heating, it is low to solve existing scheme
Heating process before temperature charging has that the temperature difference is larger between battery module.
Embodiment described above is only that preferred embodiment of the invention is described, and is not carried out to the scope of the present invention
It limits, without departing from the spirit of the design of the present invention, those of ordinary skill in the art make technical solution of the present invention
Various changes and improvements, should all fall into claims of the present invention determine protection scope in.
Claims (3)
1. a kind of equilibrium of battery and heating integrated system, it is characterised in that: including power supply, be thermally integrated circuit, temperature sense
Device；The power supply includes the charge power supply of battery of the power supply B that battery provides and outside；The circuit that is thermally integrated includes equilibrium
Module and heating module；The balance module includes that the shunt circuit of each modular power source B of battery and the parallel connection of heating film R are returned
Road, two shunt circuits are connected by series circuit；Each battery module is corresponding to provide a power supply B, power supply B parallel circuit
In each independent loop connect a switch k；Each independent loop connects a switch S in the parallel circuit of the heating film R；It is described
External charge power supply and each heating film R constitute the series loop or shunt circuit of an entirety, constitute and are thermally integrated adding for circuit
Thermal modules；Switch k+ is set at the external charging positive pole, switch k- is set at cathode；
The battery balanced module Starting mode of the battery system are as follows: disconnect switch k+ and k-, while the k and S that closes a switch, connection
The heating film R that the self-powered B of battery starts each parallel connection achievees the effect that balancing battery voltage；
The heating module Starting mode of the battery system are as follows: disconnect all switch k, according to the battery temperature difference induction judgement close or
Corresponding S is disconnected, while the k+ and k- that closes a switch, connection outside batteries charge power supply starts each concatenated heating film R and reaches battery
Heating effect；
The differential temperature of each intermodule of temperature sensing device induced cell, and each independent loop is controlled by each temperature difference and is opened
Close opening or closing for k and S.
2. a kind of equilibrium of battery according to claim 1 and heating integrated system, it is characterised in that: the battery
For battery module.
3. a kind of equilibrium of battery according to claim 1 and heating integrated system, it is characterised in that: the heating film
For resistance heating wire or ptc heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910171495.7A CN109755676B (en) | 2019-03-07 | 2019-03-07 | Balancing and heating integrated system of storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910171495.7A CN109755676B (en) | 2019-03-07 | 2019-03-07 | Balancing and heating integrated system of storage battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109755676A true CN109755676A (en) | 2019-05-14 |
| CN109755676B CN109755676B (en) | 2024-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910171495.7A Active CN109755676B (en) | 2019-03-07 | 2019-03-07 | Balancing and heating integrated system of storage battery |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113859032A (en) * | 2021-08-23 | 2021-12-31 | 上海融和智电新能源有限公司 | Novel replaceable battery system |
| WO2022016871A1 (en) * | 2020-07-20 | 2022-01-27 | 广州汽车集团股份有限公司 | Battery heating system, battery device and electric vehicle |
| CN114844161A (en) * | 2022-05-18 | 2022-08-02 | 北京劢亚科技有限公司 | Battery equalization device and method applied to satellite |
| EP4064513A1 (en) * | 2021-03-26 | 2022-09-28 | Samsung SDI Co., Ltd. | Battery system and method of controlling the same |
| CN115458840A (en) * | 2021-06-09 | 2022-12-09 | 荣盛盟固利新能源科技有限公司 | Partitioned thermal management battery system |
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2019
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022016871A1 (en) * | 2020-07-20 | 2022-01-27 | 广州汽车集团股份有限公司 | Battery heating system, battery device and electric vehicle |
| EP4064513A1 (en) * | 2021-03-26 | 2022-09-28 | Samsung SDI Co., Ltd. | Battery system and method of controlling the same |
| CN115458840A (en) * | 2021-06-09 | 2022-12-09 | 荣盛盟固利新能源科技有限公司 | Partitioned thermal management battery system |
| CN113859032A (en) * | 2021-08-23 | 2021-12-31 | 上海融和智电新能源有限公司 | Novel replaceable battery system |
| CN114844161A (en) * | 2022-05-18 | 2022-08-02 | 北京劢亚科技有限公司 | Battery equalization device and method applied to satellite |
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| Publication number | Publication date |
|---|---|
| CN109755676B (en) | 2024-04-12 |
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