CN206327164U - A kind of electric automobile power battery component - Google Patents
A kind of electric automobile power battery component Download PDFInfo
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- CN206327164U CN206327164U CN201621245224.XU CN201621245224U CN206327164U CN 206327164 U CN206327164 U CN 206327164U CN 201621245224 U CN201621245224 U CN 201621245224U CN 206327164 U CN206327164 U CN 206327164U
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- Prior art keywords
- battery
- lower box
- lithium battery
- single lithium
- triode
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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
-
- 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
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- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a kind of electric automobile power battery component, including lower box, cover the upper lid and the insulating barrier between upper lid and lower box of lower box upper opening, some battery cabins for being used to place single lithium battery are distributed with the lower box along its length, the leading flank of the lower box is provided with electrical appliance kit, battery management unit is provided with the electrical appliance kit, the back side panel of the lower box is provided with several rows of fan along its length, the left surface or/and right flank of the lower box are provided with the cooling water tank that water-cooling is carried out to battery case, the cooling water tank is provided with water inlet and delivery port, a single lithium battery cell equalizing protecting circuit in parallel.It is air-cooled to battery case progress that the utility model is provided with ventilating fan, meanwhile, it is additionally provided with water tank and carries out corresponding water-cooled or insulation operation, in addition, the utility model ensures the single lithium battery equalizaing charge of series connection so that single lithium battery can be with automatic shutdown circuit when reaching full voltage.
Description
Technical field
The utility model is related to electric vehicle engineering, and in particular to power battery box of electric vehicle.
Background technology
With the exhaustion of the energy and going from bad to worse for earth environment, study a kind of new-energy automobile and replace traditional fuel oil vapour
Car has been trend of the times.New-energy automobile experienced prolonged exploration, a kind of electric vehicle engineering of use electrokinetic cell
Gradually move to maturity, and start volume production, move towards huge numbers of families.Power battery box of electric vehicle as electrokinetic cell crucial portion
Part, plays a part of carrying and self-contained battery.Its design will not only consider the structure distribution of battery, it is also contemplated that electric automobile exists
Under different operating environment and various working traveling the problems such as the mechanical capacity of battery case, reliability and security.Traditional
Power battery box only considered the carrying and fixation of battery in design, and battery ventilation and heat at work and insulation are paid close attention to
Less, in addition, in the prior art, Charge Management is largely using passive method in a balanced way, by parallel resistance to the monomer that overcharges
Lithium battery is discharged, so less efficient, and energy loss is big.
Utility model content
Technical problem to be solved in the utility model is just to provide a kind of electric automobile power battery component, solves radiating
With insulation problem, and serial lithium battery equalizaing charge is ensured.
In order to solve the above technical problems, the utility model is adopted the following technical scheme that：A kind of electric automobile power battery group
Part, including lower box, the upper lid and the insulating barrier between upper lid and lower box that cover lower box upper opening, it is described
Lower box is distributed between some battery cabins for being used to place single lithium battery, adjacent two batteries cabin by electricity along its length
Pond dividing plate is separated, and the leading flank of the lower box, which is provided with electrical appliance kit, the electrical appliance kit, is provided with battery management unit, the electrical equipment
The side of box is distributed with and the communication port for realizing battery case communication is connected with external communication line, is connected realization electricity with outside electrical connector
The charging inlet of pond case charging, it is connected after the electric discharge interface for realizing that battery case discharges, the lower box with outside electrical connector
Side plate is provided with several rows of fan along its length, and the lower box has a fan dividing plate in back side panel installed in front, the fan every
Plate correspondence ventilating fan air inlet provided with out of battery flat room suck hot-air exhaust outlet, the left surface of the lower box or/
The cooling water tank that water-cooling is carried out to battery case is provided with right flank, the cooling water tank is provided with water inlet and delivery port, institute
A single lithium battery cell equalizing protecting circuit in parallel is stated, the cell equalizing protecting circuit includes triode, for providing reference voltage
Potentiometer, for adjust single lithium battery limitation voltage source of stable pressure and rise metering function power resistor, three pole
Manage as PNP triode, source of stable pressure and the power resistor connection and be connected simultaneously with triode, the potentiometer and source of stable pressure company
Connect；The cell equalizing protecting circuit is single lithium battery setting limitation voltage, if the voltage of single lithium battery is less than limitation voltage,
Source of stable pressure does not absorb electric current, and triode cut-off, charging current continues to charge to the single lithium battery by single lithium battery；If single
Body lithium battery voltage reaches limitation voltage, and source of stable pressure starts to absorb electric current, triode ON, then electric current is obstructed by triode
The single lithium battery is crossed, the single lithium battery stops charging, the single lithium battery voltage is limited in below limitation voltage.
It is preferred that, the battery separator strengthens column provided with a row along the longitudinal direction.
It is preferred that, the battery separator opens up hole between adjacent reinforcement column.
It is preferred that, the cell equalizing protecting circuit is also connected including one with triode, plays the diode of partial pressure effect.
It is preferred that, provided with the automatic fuse for disconnecting battery case circuit when battery overload is run in the electrical appliance kit.
It is preferred that, D.C. contactor is provided with the electrical appliance kit.
The technical solution adopted in the utility model, there is provided ventilating fan is air-cooled to battery case progress, meanwhile, it is additionally provided with water
Case carries out corresponding water-cooled or insulation operation, and battery management unit is according to the battery case temperature of temperature sensor monitors, regulation
Ventilating fan rotating speed, or regulating tank water inlet enter cold water or warm water, to be cooled accordingly and be incubated.In addition, this reality
Ensure the single lithium battery equalizaing charge of series connection with new so that single lithium battery, which reaches, can automatically cut off electricity during full voltage
Road.
Brief description of the drawings
The utility model is further described with reference to the accompanying drawings and detailed description：
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation one of lower box；
Fig. 3 is the structural representation two of lower box
Fig. 4 is the utility model cell equalizing protecting circuit theory diagram；
Fig. 5 is the utility model cell equalizing protecting circuit schematic diagram；
Fig. 6 is the utility model cell equalizing protecting circuit parallel circuit fundamental diagram；
Fig. 7 charges normal operating diagram for the utility model cell equalizing protecting circuit；
Fig. 8 is the utility model cell equalizing protecting circuit upscale protection operating diagram.
Embodiment
As shown in Figure 1 to Figure 3, a kind of power battery box of electric vehicle, including lower box 1, capping lower box upper opening
Upper lid 2 and the insulating barrier 21 between upper lid and lower box, some use are distributed with the lower box along its length
Separated between the battery cabin for placing single lithium battery, adjacent two batteries cabin by battery separator 11.Upper lid 2 and lower box 1
By screw connection, hole is threaded on upper lid and lower box, screw need to be only tightened in outside lid 2 and nowel can be achieved
The secure connection of body 1, convenient disassembly, to repair.Insulating barrier 21 can prevent electric leakage, play safeguard protection effect.
The leading flank of the lower box, which is provided with electrical appliance kit 13, the electrical appliance kit, is provided with battery management unit 131, the electricity
The side of device box is distributed with and the communication port 101 for realizing battery case communication is connected with external communication line, is connected with outside electrical connector
Realize the charging inlet 102 of battery case charging, the electric discharge interface 103 for realizing battery case electric discharge, institute are connected with outside electrical connector
The back side panel for stating lower box is provided with several rows of fan 122 along its length, and the lower box has fan in back side panel installed in front
Dividing plate 12, the air inlet of the fan dividing plate correspondence ventilating fan is provided with the exhaust outlet 121 that hot-air is sucked out of battery flat room, institute
The left surface or/and right flank for stating lower box are provided with the water tank 14 that water-cooling/insulation is carried out to battery case, and the water tank is provided with
Water inlet 141 and delivery port 142, the lower box are provided with the temperature sensor of monitoring battery case temperature on the top of front side board
104, the temperature sensor and battery management unit are communicated to connect, the battery management unit provided with control ventilating fan rotating speed and
The radiating of water tank water intake temperature and preservation and controlling module.
Wherein, fan dividing plate 12 separates battery with ventilating fan 122, can prevent the battery in electric automobile running
Rock and strike ventilating fan 122, play safeguard protection effect, and exhaust outlet 121 has been opened up on fan dividing plate 12, with ventilating fan
13 location matches.
Because the propagation direction of hot-air is upward and battery case lower box centre position temperature is higher, therefore in lower box
The upper middle position of front side board is mounted with temperature sensor 104, and the moment monitors the temperature of battery case, when the temperature of battery case surpasses
When crossing setting range, temperature sensor sends corresponding signal to battery management unit 131, so that battery management unit is made in time
Go out regulation measure, it is ensured that the normal operation of vehicle.Specifically, the temperature that temperature sensor 104 monitors inside battery case exceedes
Radiating and preservation and controlling module in setting value, battery management unit control the startup of ventilating fan 122, ventilating fan to lead to after starting
Exhaust outlet 121 on passing through fan dividing plate 12 discharges hot blast from battery cabin, it is possible to according to temperature just, adjusts ventilating fan
Rotating speed, temperature is too high, just heightens ventilating fan rotating speed, after temperature reduction, ventilating fan rotating speed can be suitably turned down again, so as to reach intelligence
The purpose that can cool.Further, in addition to air-cooled, water tank 14 is also provided with, can be according to the height of battery case temperature, accordingly
To inject into water tank 14 cold water or warm water, i.e. temperature by water inlet 141 too high, cold water is passed through, if environment temperature mistake
It is low, in order to protect battery normally to run, hot water can be passed through.Water inlet 141 is set above water tank, water outlet has been provided below
Mouth 142, delivery port sets water discharging valve, because delivery port is directed downward, it is not necessary to special water plug, as long as opening draining
Valve can discharge water, and realize cooling or the renewal of insulation water, easy to operate.Simultaneously, it is necessary to around battery case
Water pipe and control system are installed, you can realize intelligent water-cooled or insulation.
Wherein, the battery separator 11 strengthens column 111 provided with a row along the longitudinal direction.The battery separator adds adjacent
Hole 112 is opened up between strong column.Strengthen the mechanical strength that column 111 plays a part of strengthening battery separator, hole 112
To the effect for mitigating lower box overall weight, so as to realize the target of light-weight design.
Electrical appliance kit 13 is specifically used to carry and accommodates electric original paper and charge and discharge device.Battery management unit plays processing
The data that sensor transmission comes, and the instruction of response is sent, the normal operation of whole battery case is controlled, is whole battery case
Core component, communication port 101, charging inlet 102, electric discharge interface 103, is responsible for information transmission and the discharge and recharge of whole battery case.
Fuse 132 is provided with electrical appliance kit 13, when battery is in overlond running situation, the automatic shutoff circuit of fuse 132 is played
The overload protective function of battery.The middle part and right side of electrical appliance kit 13 are dispersed with 1 D.C. contactor 133, convenient operation, behaviour respectively
As when reduce danger coefficient, D.C. contactor can realize distant place control, be used primarily in startup frequently equipment, play short-circuit guarantor
The effect of shield.The right side of electrical appliance kit 13 top is provided with protective resistance 134 and precharge D.C. contactor 135, dedicated for charging
The circuit safety protection of device.
As shown in figure 4, the single lithium battery battery pack in series in each battery cabin, by the way of being connected in parallel
A cell equalizing protecting circuit all in parallel in every section single lithium battery.
As shown in figure 5, cell equalizing protecting circuit includes 100K potentiometer, controllable accurate source of stable pressure TL431,1K power electricity
Resistance, PNP triode MJ11015, diode 10A01.Wherein, potentiometer is used to provide reference voltage, and source of stable pressure is used to adjust list
Body lithium battery limits voltage, and power resistor plays metering function, and diode plays partial pressure.Triode is PNP triode, source of stable pressure
Connect and be connected simultaneously with triode with power resistor, potentiometer is connected with source of stable pressure.
As shown in fig. 6, illustrating its operation principle with single cell equalizing protecting circuit, cell equalizing protecting circuit sets for single lithium battery
Definite limitation voltage is 4.2V, and controllable accurate source of stable pressure TL431 does not absorb electric current, the poles of PNP tri- if cell voltage is below 4.2V
Pipe MJ11015 ends, and charging current can continue to charge the battery by battery；If cell voltage reaches 4.2V, controllable accurate is steady
Potential source TL431 starts to absorb electric current, and PNP triode MJ11015 is turned on, then electric current passes through triode MJ11015 and diode
10A01, not by battery, stops charging, cell voltage is limited in below 4.2V, and diode 10A01 plays partial pressure, reduced
PNP triode MJ11015 dissipated powers.
As shown in fig. 7, charging normal operating diagram for the utility model cell equalizing protecting circuit, each source of stable pressure is adjusted
To 4.2V.Its in a balanced way principle be, when it is every section single lithium battery voltage be both less than 4.2V when, cell equalizing protecting circuit does not work,
Charging current all passes through from single lithium battery, and all single lithium batteries continue to charge.
As shown in figure 8, being the utility model cell equalizing protecting circuit upscale protection operating diagram, if wherein one monomer
Lithium battery is first full of (taking the lead in reaching 4.2V), then its corresponding cell equalizing protecting circuit in parallel begins to conducting, plays shunting action,
Voltage is stablized can always in 4.2V, single lithium battery of the charging current no longer by being currently full of.
Claims (6)
1. a kind of electric automobile power battery component, including lower box, cover the upper lid of lower box upper opening and located at upper
Insulating barrier between lid and lower box, it is characterised in that：The lower box is distributed with some for placing list along its length
Separated between the battery cabin of body lithium battery, adjacent two batteries cabin by battery separator, the leading flank of the lower box is provided with electricity
Battery management unit is provided with device box, the electrical appliance kit, the side of the electrical appliance kit is distributed with is connected realization with external communication line
The communication port of battery case communication, be connected the charging inlet and outside electrical connector for realizing battery case charging with outside electrical connector
The electric discharge interface of battery case electric discharge is realized in connection, and the back side panel of the lower box is provided with several rows of fan along its length, described
Lower box has fan dividing plate in back side panel installed in front, and the air inlet of the fan dividing plate correspondence ventilating fan is provided with from battery cabin
The exhaust outlet of interior suction hot-air, the left surface or/and right flank of the lower box are provided with carries out water-cooling to battery case
Cooling water tank, the cooling water tank is provided with water inlet and delivery port, a single lithium battery cell equalizing protecting circuit in parallel, institute
Cell equalizing protecting circuit is stated including triode, the potentiometer for providing reference voltage, for adjusting single lithium battery limitation voltage
Source of stable pressure and play the power resistor of metering function, the triode is PNP triode, and the source of stable pressure and power resistor connect
Connect and be connected simultaneously with triode, the potentiometer is connected with source of stable pressure；The cell equalizing protecting circuit sets for single lithium battery
Voltage is limited, if the voltage of single lithium battery is less than limitation voltage, source of stable pressure does not absorb electric current, triode cut-off, charging electricity
Stream continues to charge to the single lithium battery by single lithium battery；If single lithium battery voltage reaches limitation voltage, source of stable pressure is opened
Begin absorption electric current, triode ON, then electric current is by triode, not by the single lithium battery, and the single lithium battery stops filling
Electricity, makes the single lithium battery voltage be limited in below limitation voltage.
2. a kind of electric automobile power battery component according to claim 1, it is characterised in that：The battery separator is before
Rear direction strengthens column provided with a row.
3. a kind of electric automobile power battery component according to claim 2, it is characterised in that：The battery separator is in phase
Neighbour strengthens opening up hole between column.
4. a kind of electric automobile power battery component according to claim 1, it is characterised in that：The cell equalizing protecting circuit
Also it is connected including one with triode, plays the diode of partial pressure effect.
5. a kind of electric automobile power battery component according to claim 1, it is characterised in that：It is provided with the electrical appliance kit
The automatic fuse for disconnecting battery case circuit when battery overload is run.
6. a kind of electric automobile power battery component according to claim 1, it is characterised in that：It is provided with the electrical appliance kit
D.C. contactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621245224.XU CN206327164U (en) | 2016-11-14 | 2016-11-14 | A kind of electric automobile power battery component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621245224.XU CN206327164U (en) | 2016-11-14 | 2016-11-14 | A kind of electric automobile power battery component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206327164U true CN206327164U (en) | 2017-07-14 |
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ID=59287716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621245224.XU Active CN206327164U (en) | 2016-11-14 | 2016-11-14 | A kind of electric automobile power battery component |
Country Status (1)
| Country | Link |
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| CN (1) | CN206327164U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108232069A (en) * | 2017-12-29 | 2018-06-29 | 重庆朔东汽车部件有限公司 | A kind of battery case of New-energy electric vehicle |
| CN109585972A (en) * | 2018-10-10 | 2019-04-05 | 徐州华邦塑业有限公司 | New energy car battery radiator |
| WO2020063738A1 (en) * | 2018-09-30 | 2020-04-02 | 宁德时代新能源科技股份有限公司 | Battery module, battery box, and vehicle |
| CN114361631A (en) * | 2021-12-30 | 2022-04-15 | 深圳市驰普科达科技有限公司 | Energy storage system thermal management method, device, equipment and storage medium |
-
2016
- 2016-11-14 CN CN201621245224.XU patent/CN206327164U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108232069A (en) * | 2017-12-29 | 2018-06-29 | 重庆朔东汽车部件有限公司 | A kind of battery case of New-energy electric vehicle |
| WO2020063738A1 (en) * | 2018-09-30 | 2020-04-02 | 宁德时代新能源科技股份有限公司 | Battery module, battery box, and vehicle |
| US11978864B2 (en) | 2018-09-30 | 2024-05-07 | Contemporary Amperex Technology Co., Limited | Battery module, battery box, and automobile |
| CN109585972A (en) * | 2018-10-10 | 2019-04-05 | 徐州华邦塑业有限公司 | New energy car battery radiator |
| CN114361631A (en) * | 2021-12-30 | 2022-04-15 | 深圳市驰普科达科技有限公司 | Energy storage system thermal management method, device, equipment and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230821 Address after: 311215 No.33, hongken Road, hongken farm, Xiaoshan Economic and Technological Development Zone, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee after: Zhejiang Tianyi Industrial Co.,Ltd. Address before: A-102-561, No. 198 Qidi Road, Xiaoshan Economic and Technological Development Zone, Hangzhou City, Zhejiang Province, 311232 Patentee before: HANGZHOU JINQIU AUTOMOBILE ENERGY STORAGE TECHNOLOGY CO.,LTD. |
|
| TR01 | Transfer of patent right |