CN208127922U - Active equalization device, battery management system and electric car - Google Patents
Active equalization device, battery management system and electric car Download PDFInfo
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- CN208127922U CN208127922U CN201820449144.9U CN201820449144U CN208127922U CN 208127922 U CN208127922 U CN 208127922U CN 201820449144 U CN201820449144 U CN 201820449144U CN 208127922 U CN208127922 U CN 208127922U
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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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Abstract
The utility model embodiment provides a kind of active equalization device, battery management system and electric car, includes in active equalization device：Voltage collecting device, temperature collecting device, main passive equalizer transformer and main passive equalizer switch, wherein single battery is connected in series in main passive equalizer switch and power battery pack to be equalized；Voltage collecting device and temperature collecting device acquire the discharge voltage value and temperature value of each single battery respectively, and discharge voltage value and temperature value are delivered in single-chip microcontroller and analyzed, and determine subject monomers battery；Main passive equalizer transformer carries out electric voltage equalization to subject monomers battery.The utility model carries out electric voltage equalization to the subject monomers battery in power battery pack by active equalization device, the consistent purpose of electric voltage equalization made in power battery pack between each single battery is reached, it solves in the prior art using passive balanced way equalizing voltage, the lesser technical problem of euqalizing current value.
Description
Technical field
The utility model relates to the energy equalizing technique fields of power battery pack, fill more particularly, to a kind of active equalization
It sets, battery management system and electric car.
Background technique
It is uneven due to technological problems and material in the manufacturing process of power battery, so that battery pole plates thickness, micro-
Activation degree of porosity and active material etc. is not quite identical in this inside battery structure and material there are minute differences
Property, it will make the parameter values such as capacity, internal resistance and the voltage of same size battery of same batch factory can not be completely the same.
In entrucking in use, due to difference such as the temperature of battery each in battery pack, ventilation condition, self discharge degree, density of electrolyte
Influence, increase the inconsistent of the parameters such as cell voltage, internal resistance and capacity to a certain extent.Due to the individual difference between battery
It is different, cause battery pack when being charged, the smallest single battery of capacity is easy to overcharge, when electric discharge, the smallest monomer electricity of capacity
Pond is easy over-discharge again, and since the smallest single battery of capacity is impaired, capacity becomes smaller, into vicious circle.And single battery
The superiority and inferiority of performance directly influences the charge-discharge characteristic of whole group battery, so that battery capacity reduces.
In view of the above problems, not proposing effective solution also.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of active equalization device, battery management system and electronic
Automobile, to solve to use passive balanced way equalizing voltage, the lesser technical problem of euqalizing current value in the prior art.
The utility model embodiment provides a kind of active equalization device, which includes：Voltage collecting device, temperature are adopted
Acquisition means, main passive equalizer transformer and main passive equalizer switch, wherein the passive equalizer switch of master and power to be equalized
Single battery is connected in series in battery pack, includes the sub- Acquisition Circuit of multiple voltages in the voltage collecting device, and the voltage
The quantity of sub- Acquisition Circuit is identical as the quantity of the single battery, includes that multiple temperature acquire in the temperature collecting device
Circuit, and the quantity of the sub- Acquisition Circuit of the temperature is identical as the quantity of the single battery；The voltage collecting device and institute
It states temperature collecting device to be respectively used to acquire the discharge voltage value and temperature value of each single battery, and the electric discharge is electric
Pressure value and the temperature value are delivered in single-chip microcontroller and are analyzed, to determine subject monomers electricity in multiple single batteries
Pond, wherein the voltage value of the subject monomers battery is lower than first threshold, alternatively, the temperature value of the subject monomers battery is high
In second threshold；The passive equalizer transformer of master and the passive equalizer switch of the master are used to carry out the subject monomers battery
Electric voltage equalization.
It further, include multiple sub- equalizer switches, and the multiple sub- equalizer switch in the passive equalizer switch of the master
It is arranged in a one-to-one correspondence with the multiple single battery.
Further, the active equalization device further includes：Each sub- Acquisition Circuit of the voltage is based on optocoupler
Voltage collection circuit.
Further, the active equalization device be set to battery management system from control module in, it is described from control module
Further include：Voltage acquisition isolating amplifier circuit, single chip machine controlling circuit, transformer isolation power supply circuit and isolated can communication electricity
Road.
Further, the voltage acquisition isolating amplifier circuit is used for the sub- Acquisition Circuit of the voltage is collected described
The discharge voltage value of single battery is amplified.
Further, the single chip machine controlling circuit is for being adopted voltage by the isolated can telecommunication circuit
The discharge voltage value and the collected list of the sub- Acquisition Circuit of the temperature of the collected single battery of collector
The temperature value of body battery is sent in the main module of the battery management system.
Further, the transformer isolation power supply circuit is for powering.
Further, the isolated can telecommunication circuit be used for by the single chip machine controlling circuit by CAN bus with it is described
The main module of battery management system is connected.
According to the utility model embodiment, a kind of battery management system is additionally provided, which includes above-mentioned active equalization
Device.
According to the utility model embodiment, a kind of electric car is additionally provided, which includes above-mentioned battery management
System, the battery management system is for being managed the battery pack of electric car.
The utility model embodiment provides a kind of active equalization device, battery management system and electric car, actively
Include in weighing apparatus device：Voltage collecting device, temperature collecting device, main passive equalizer transformer and main passive equalizer switch, wherein
Single battery is connected in series in main passive equalizer switch and power battery pack to be equalized；Voltage collecting device and temperature acquisition dress
The discharge voltage value and temperature value for acquiring each single battery respectively are set, and discharge voltage value and temperature value are delivered to single-chip microcontroller
In analyzed, in multiple single batteries determine subject monomers battery；Main passive equalizer transformer is to determining target list
Body battery carries out electric voltage equalization.In the utility model embodiment, by active equalization device to the target in power battery pack
Single battery carries out electric voltage equalization, has reached the consistent mesh of electric voltage equalization made in power battery pack between each single battery
, and then solve and use passive balanced way equalizing voltage in the prior art, the lesser technical problem of euqalizing current value, thus
The service life for extending power battery pack is realized, improves the job stability of power battery pack, and euqalizing current value increases
Technical effect.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is according to a kind of structural schematic diagram of active equalization device provided by the embodiment of the utility model；
Fig. 2 be according to a kind of multiple sub- equalizer switches led in passive equalizer switch provided by the embodiment of the utility model with
The structural schematic diagram that multiple single batteries are connected；
Fig. 3 is according to a kind of structural schematic diagram from control module provided by the embodiment of the utility model；
Fig. 4 is according to a kind of structural schematic diagram of electric car provided by the embodiment of the utility model.
Specific embodiment
To keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, below in conjunction with attached drawing to this
The technical solution of utility model is clearly and completely described, it is clear that described embodiment is that the utility model a part is real
Example is applied, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making
Every other embodiment obtained, fall within the protection scope of the utility model under the premise of creative work.
Embodiment one：
Fig. 1 is according to a kind of structural schematic diagram of active equalization device provided by the embodiment of the utility model, such as Fig. 1 institute
Show, which includes：Voltage collecting device 100, temperature collecting device 110, main passive 120 He of equalizer transformer
Main passive equalizer switch 130, wherein：
Main passive equalizer switch 130 is connected in series with single battery in power battery pack to be equalized, voltage collecting device
It include the sub- Acquisition Circuit of multiple voltages in 100, and the quantity of the sub- Acquisition Circuit of voltage is identical as the quantity of single battery, temperature is adopted
It include the sub- Acquisition Circuit of multiple temperature in acquisition means 110, and the quantity of the sub- Acquisition Circuit of temperature is identical as the quantity of single battery.
Specifically, voltage collecting device 100 and temperature collecting device 110 are respectively used to acquire putting for each single battery
Piezoelectric voltage value and temperature value, and discharge voltage value and temperature value are delivered in single-chip microcontroller and analyzed, in multiple monomer electricity
Subject monomers battery is determined in pond, wherein the voltage value of subject monomers battery is lower than first threshold, alternatively, subject monomers battery
Temperature value be higher than second threshold.
Specifically, main passive equalizer transformer 120 and main passive equalizer switch 130 are used to carry out subject monomers battery
Electric voltage equalization.
In the utility model embodiment, the equilibrium to power battery is exactly the management of charging and discharging to unbalanced battery.?
The key point of weighing apparatus be it is maximumlly that whole group battery is at full charge, avoid weak tendency battery core (that is, above-mentioned subject monomers battery) from bringing
Short -board effect influences the course continuation mileage of electric car.
Specifically, the meeting of voltage collecting device 100 carries out the discharge voltage value of each single battery in power battery pack
Acquisition, and collected discharge voltage value is delivered in single-chip microcontroller, temperature collecting device 110 can be to every in power battery pack
The temperature value of a single battery is acquired, and collected temperature value is delivered in single-chip microcontroller；Single-chip microcontroller can be arranged in advance
The voltage threshold (that is, above-mentioned first threshold) and temperature threshold (i.e. above-mentioned second threshold) of good single battery, if analysis obtains
The discharge voltage value of certain single battery is lower than the voltage threshold being arranged in single-chip microcontroller, alternatively, the temperature value of certain single battery is higher than
The single battery is then confirmed as subject monomers battery by the temperature threshold being arranged in single-chip microcontroller, so with subject monomers battery phase
The passive equalizer switch movement of the master of connection, the main passive equalizer transformer of control carry out electric voltage equalization to subject monomers battery.
The utility model embodiment provides a kind of active equalization device, battery management system and electric car, actively
Include in weighing apparatus device：Voltage collecting device, temperature collecting device, main passive equalizer transformer and main passive equalizer switch, wherein
Single battery is connected in series in main passive equalizer switch and power battery pack to be equalized；Voltage collecting device and temperature acquisition dress
The discharge voltage value and temperature value for acquiring each single battery respectively are set, and discharge voltage value and temperature value are delivered to single-chip microcontroller
In analyzed, in multiple single batteries determine subject monomers battery；Main passive equalizer transformer is to determining target list
Body battery carries out electric voltage equalization.In the utility model embodiment, by active equalization device to the target in power battery pack
Single battery carries out electric voltage equalization, has reached the consistent mesh of electric voltage equalization made in power battery pack between each single battery
, and then solve and use passive balanced way equalizing voltage in the prior art, the lesser technical problem of euqalizing current value, thus
The service life for extending power battery pack is realized, improves the job stability of power battery pack, and euqalizing current value increases
Technical effect.
In an optional embodiment, as shown in Fig. 2, including that multiple sub- equilibriums are opened in main passive equalizer switch 130
It closes, and multiple sub- equalizer switches are arranged in a one-to-one correspondence with multiple single batteries.
In the utility model embodiment, as shown in Fig. 2, including that multiple sub- equilibriums are opened in main passive equalizer switch 130
It closes, and the quantity of sub- equalizer switch is identical as single battery quantity.Sub- equalizer switch is connected with single battery one-to-one correspondence, uses
Electric voltage equalization is carried out to subject monomers battery in control main passive equalizer transformer.
In another optional real-time mode, active equalization device further includes：Each sub- Acquisition Circuit of voltage is base
In the voltage collection circuit of optocoupler.
In the utility model embodiment, optocoupler, i.e. photo-coupler, also known as photoisolator or photoelectrical coupler.It is
Carry out the device of transmission telecommunications number using light as medium, usually photophore (infrared light-emitting diode LED) and light-receiving device (photosensitive half
Conductor tube) it is encapsulated in same shell.When input terminal power up signal, photophore emits beam, and light-receiving device receives light later just
Photoelectric current is generated, is flowed out from output end, to realize " electrical-optical-electrical " conversion.Input end signal is coupled to using light as medium
The photoelectrical coupler of output end, have it is small in size, the service life is long, contactless, strong antijamming capability, output input between insulate,
The advantages of one-way transmission signal.
In the utility model embodiment, by the isolation of optocoupler, realizes and isolation sampling is carried out to each single battery,
The discharge voltage of each single battery is acquired above by the sub- Acquisition Circuit of voltage based on optocoupler.
In the utility model embodiment, the subject monomers battery in power battery pack is carried out by active equalization device
Electric voltage equalization has reached the consistent purpose of electric voltage equalization made in power battery pack between each single battery, and then has solved
Passive balanced way equalizing voltage, the lesser technical problem of euqalizing current value, to realize extension are used in the prior art
The service life of power battery pack improves the job stability of power battery pack, and the technical effect that euqalizing current value increases.
Fig. 3 is according to a kind of structural schematic diagram from control module provided by the embodiment of the utility model.
In an optional embodiment, as shown in figure 3, active equalization device 10 be set to battery management system from
It controls in module, should further include from control module：Voltage acquisition isolating amplifier circuit 20, single chip machine controlling circuit 30, transformer isolation
Power supply circuit 40 and isolated can telecommunication circuit 50.
Specifically, voltage acquisition isolating amplifier circuit 20 is used for putting the voltage collected single battery of sub- Acquisition Circuit
The amplification of piezoelectric voltage value.
Specifically, single chip machine controlling circuit 30 is used to acquire the sub- Acquisition Circuit of voltage by isolated can telecommunication circuit 50
To the discharge voltage value of single battery and the temperature value of the collected single battery of the sub- Acquisition Circuit of temperature be sent to cell tube
In the main module of reason system.
Specifically, transformer isolation power supply circuit 40 is for powering.
Specifically, isolated can telecommunication circuit 50 is used to single chip machine controlling circuit 30 passing through CAN bus and battery management system
The main module of system is connected.
In the utility model embodiment, voltage acquisition isolating amplifier circuit 20 is sub by the voltage in active equalization module 10
The discharge voltage value of the collected single battery of Acquisition Circuit is amplified, and the discharge voltage value of amplification is then transmitted to single-chip microcontroller control
Circuit 30 processed；The sub- Acquisition Circuit of the voltage includes 15 voltage detecting points；In addition, temperature acquisition in active equalization module 10
Circuit acquires the temperature value of single battery, and temperature value is then transmitted to single chip machine controlling circuit 30；The sub- Acquisition Circuit of the temperature
Including 8 temperature detecting points.
Specifically, single chip machine controlling circuit 30 is after the discharge voltage value and temperature value for receiving above-mentioned amplification, single-chip microcontroller control
Single-chip microcontroller in circuit 30 processed is analyzed based on the voltage data and temperature data received, determines subject monomers battery, in turn
Single-chip microcontroller controls sub- equalizer switch corresponding with subject monomers battery in the passive equalizer switch of master in active equalization device 10
It opens or closes, to control the electric voltage equalization of subject monomers battery.Meanwhile single chip machine controlling circuit 30 is also logical by isolated can
Voltage data and temperature data are sent to the main module in battery management system by letter circuit 50.
It should be noted that the main module 401 in main module, that is, Fig. 4 in above-mentioned battery management system.
The utility model embodiment provides a kind of active equalization device, battery management system and electric car, actively
Include in weighing apparatus device：Voltage collecting device, temperature collecting device, main passive equalizer transformer and main passive equalizer switch, wherein
Single battery is connected in series in main passive equalizer switch and power battery pack to be equalized；Voltage collecting device and temperature acquisition dress
The discharge voltage value and temperature value for acquiring each single battery respectively are set, and discharge voltage value and temperature value are delivered to single-chip microcontroller
In analyzed, in multiple single batteries determine subject monomers battery；Main passive equalizer transformer is to determining target list
Body battery carries out electric voltage equalization.In the utility model embodiment, by active equalization device to the target in power battery pack
Single battery carries out electric voltage equalization, has reached the consistent mesh of electric voltage equalization made in power battery pack between each single battery
, and then solve and use passive balanced way equalizing voltage in the prior art, the lesser technical problem of euqalizing current value, thus
The service life for extending power battery pack is realized, improves the job stability of power battery pack, and euqalizing current value increases
Technical effect.
Embodiment two：
The utility model embodiment additionally provides a kind of battery management system, which includes above-mentioned active equalization device.
In the utility model embodiment, the subject monomers battery in power battery pack is carried out by active equalization device
Electric voltage equalization has reached the consistent purpose of electric voltage equalization made in power battery pack between each single battery, and then has solved
Passive balanced way equalizing voltage, the lesser technical problem of euqalizing current value, to realize extension are used in the prior art
The service life of power battery pack improves the job stability of power battery pack, and the technical effect that euqalizing current value increases.
Embodiment three：
The utility model embodiment additionally provides a kind of electric car, which includes above-mentioned battery management system.
Fig. 4 is according to a kind of structural schematic diagram of electric car provided by the embodiment of the utility model, as shown in figure 4, should
Electric car includes battery management system, and the battery management system is for being managed the battery pack of electric car, the battery
Management system include main module 401 and from control module 402.
The utility model embodiment provides a kind of active equalization device, battery management system and electric car, actively
Include in weighing apparatus device：Voltage collecting device, temperature collecting device, main passive equalizer transformer and main passive equalizer switch, wherein
Single battery is connected in series in main passive equalizer switch and power battery pack to be equalized；Voltage collecting device and temperature acquisition dress
The discharge voltage value and temperature value for acquiring each single battery respectively are set, and discharge voltage value and temperature value are delivered to single-chip microcontroller
In analyzed, in multiple single batteries determine subject monomers battery；Main passive equalizer transformer is to determining target list
Body battery carries out electric voltage equalization.In the utility model embodiment, by active equalization device to the target in power battery pack
Single battery carries out electric voltage equalization, has reached the consistent mesh of electric voltage equalization made in power battery pack between each single battery
, and then solve and use passive balanced way equalizing voltage in the prior art, the lesser technical problem of euqalizing current value, thus
The service life for extending power battery pack is realized, improves the job stability of power battery pack, and euqalizing current value increases
Technical effect.
In addition, in the description of the utility model embodiment unless specifically defined or limited otherwise, term " installation ",
" connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition
Concrete meaning in the present invention.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.The apparatus embodiments described above are merely exemplary, for example, the division of the unit,
Only a kind of logical function partition, there may be another division manner in actual implementation, in another example, multiple units or components can
To combine or be desirably integrated into another system, or some features can be ignored or not executed.Another point, it is shown or beg for
The mutual coupling, direct-coupling or communication connection of opinion can be through some communication interfaces, device or unit it is indirect
Coupling or communication connection can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
Finally it should be noted that：Embodiment described above, only specific embodiment of the present utility model, to illustrate this
The technical solution of utility model, rather than its limitations, the protection scope of the utility model is not limited thereto, although referring to aforementioned
The utility model is described in detail in embodiment, those skilled in the art should understand that：It is any to be familiar with this skill
The technical staff in art field within the technical scope disclosed by the utility model, still can be to skill documented by previous embodiment
Art scheme modify or can readily occur in variation or equivalent replacement of some of the technical features；And these modifications,
Variation or replacement, the spirit and model of the utility model embodiment technical solution that it does not separate the essence of the corresponding technical solution
It encloses, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model is answered described is wanted with right
Subject to the protection scope asked.
Claims (10)
1. a kind of active equalization device, which is characterized in that including：Voltage collecting device, temperature collecting device, main passive balanced change
Depressor and main passive equalizer switch, wherein single battery string in the passive equalizer switch of master and power battery pack to be equalized
Connection connection, includes the sub- Acquisition Circuit of multiple voltages in the voltage collecting device, and the quantity of the sub- Acquisition Circuit of the voltage with
The quantity of the single battery is identical, includes the sub- Acquisition Circuit of multiple temperature in the temperature collecting device, and the temperature is sub
The quantity of Acquisition Circuit is identical as the quantity of the single battery；
The voltage collecting device and the temperature collecting device are respectively used to acquire the discharge voltage of each single battery
Value and temperature value, and the discharge voltage value and the temperature value are delivered in single-chip microcontroller and are analyzed, multiple described
Subject monomers battery is determined in single battery, wherein the voltage value of the subject monomers battery is lower than first threshold, alternatively, institute
The temperature value for stating subject monomers battery is higher than second threshold；
The passive equalizer transformer of master and the passive equalizer switch of the master are used to carry out voltage to the subject monomers battery equal
Weighing apparatus.
2. active equalization device according to claim 1, which is characterized in that include multiple in the passive equalizer switch of master
Sub- equalizer switch, and the multiple sub- equalizer switch is arranged in a one-to-one correspondence with the multiple single battery.
3. active equalization device according to claim 1, which is characterized in that the active equalization device further includes：Each
The sub- Acquisition Circuit of voltage is the voltage collection circuit based on optocoupler.
4. active equalization device according to claim 1, which is characterized in that the active equalization device is set to cell tube
Reason system from control module in, it is described from control module further include：Voltage acquisition isolating amplifier circuit, single chip machine controlling circuit become
Power supply circuit and isolated can telecommunication circuit is isolated in depressor.
5. active equalization device according to claim 4, which is characterized in that the voltage acquisition isolating amplifier circuit is used for
The discharge voltage value of the collected single battery of the sub- Acquisition Circuit of the voltage is amplified.
6. active equalization device according to claim 4, which is characterized in that the single chip machine controlling circuit is for passing through institute
Isolated can telecommunication circuit is stated by the discharge voltage value of the collected single battery of the sub- Acquisition Circuit of the voltage and institute
The temperature value for stating the collected single battery of the sub- Acquisition Circuit of temperature is sent to the main mould of the battery management system
In block.
7. active equalization device according to claim 4, which is characterized in that the transformer isolation power supply circuit is for supplying
Electricity.
8. active equalization device according to claim 4, which is characterized in that the isolated can telecommunication circuit is used for institute
It states single chip machine controlling circuit and is connected by CAN bus with the main module of the battery management system.
9. a kind of battery management system, which is characterized in that including active equalization described in any one of the claims 1 to 8
Device.
10. a kind of electric car, which is characterized in that including battery management system described in the claims 9, the cell tube
Reason system is for being managed the battery pack of electric car.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820449144.9U CN208127922U (en) | 2018-03-30 | 2018-03-30 | Active equalization device, battery management system and electric car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820449144.9U CN208127922U (en) | 2018-03-30 | 2018-03-30 | Active equalization device, battery management system and electric car |
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| Publication Number | Publication Date |
|---|---|
| CN208127922U true CN208127922U (en) | 2018-11-20 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820449144.9U Expired - Fee Related CN208127922U (en) | 2018-03-30 | 2018-03-30 | Active equalization device, battery management system and electric car |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108288868A (en) * | 2018-03-30 | 2018-07-17 | 北京国能电池科技股份有限公司 | Active equalization device, battery management system and electric vehicle |
| CN109742458A (en) * | 2018-11-28 | 2019-05-10 | 上海松岳电源科技有限公司 | A kind of device promoted for electrokinetic cell system lithium battery group charging and discharging capabilities |
-
2018
- 2018-03-30 CN CN201820449144.9U patent/CN208127922U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108288868A (en) * | 2018-03-30 | 2018-07-17 | 北京国能电池科技股份有限公司 | Active equalization device, battery management system and electric vehicle |
| CN109742458A (en) * | 2018-11-28 | 2019-05-10 | 上海松岳电源科技有限公司 | A kind of device promoted for electrokinetic cell system lithium battery group charging and discharging capabilities |
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