CN207381501U - Equalizing circuit, cell managing device and delivery vehicle - Google Patents
Equalizing circuit, cell managing device and delivery vehicle Download PDFInfo
- Publication number
- CN207381501U CN207381501U CN201721560275.6U CN201721560275U CN207381501U CN 207381501 U CN207381501 U CN 207381501U CN 201721560275 U CN201721560275 U CN 201721560275U CN 207381501 U CN207381501 U CN 207381501U
- Authority
- CN
- China
- Prior art keywords
- relay
- equalizing
- equalizing circuit
- battery core
- resistance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides a kind of equalizing circuit, cell managing device and delivery vehicle, applied to battery technology field.In the utility model, equalizing circuit, including：Control module is arranged on control panel, is connected to the both ends of battery modules, and is all connected with the both ends of each battery core in the battery modules；Equalizing resistance module is arranged at other regions in addition to the control panel, including：Equalizing resistance；The both ends of the equalizing resistance are connected to the control module.Therefore, technical solution provided by the utility model can improve the euqalizing current of the passive equalizing circuit of resistance-type to a certain extent, it is made to meet the passive equilibrium under high current pattern.
Description
【Technical field】
The utility model is related to a kind of battery technology field more particularly to equalizing circuit, cell managing device and delivery works
Tool.
【Background technology】
Battery modules are in series by single battery core, but since the characteristic aspect of single battery core is there are fine difference, are led
The charge and discharge for causing single battery core are inconsistent, also, the increase of the number of run with charge and discharge, the voltage differences between single battery core
It is increasing, so as to need that the electric voltage equalization between battery core voltage monitoring and single battery core is carried out to single battery core, so as to so that
The voltage of each single battery core in one battery modules is consistent.
At present, the passive equalizing circuit of resistance-type is acknowledged as a kind of equalizing circuit that cost is minimum, stability is best, wide
General applies in battery management system.The passive equalizing circuit of resistance-type is arranged on the control panel in cell managing device, and
And comprising multiple equalizing resistances in circuit, each equalizing resistance is used to carry out for a battery core balanced.
It is gradually stepped up with the energy density ratio of power battery, under the trend that power battery core capacity constantly becomes larger, high current
The passive equilibrium of pattern has become the mainstream of following equalizing circuit.But it is limited to be limited to space on control panel, equalizing resistance
Heat dissipation difficulty it is larger, therefore, for security consideration, the euqalizing current of the passive equalizing circuit of resistance-type of the prior art compared with
It is small, it is difficult to meet the passive equilibrium under high current pattern.
【Utility model content】
In view of this, the utility model provides a kind of equalizing circuit, cell managing device and delivery vehicle, to one
Determine the euqalizing current of the raising passive equalizing circuit of resistance-type in degree, it is made to meet the passive equilibrium under high current pattern.
On the one hand, the utility model provides a kind of equalizing circuit, including：
Control module is arranged on control panel, is connected to the both ends of battery modules, and with it is each in the battery modules
The both ends of battery core are all connected with；
Equalizing resistance module is arranged at other regions in addition to the control panel, including：Equalizing resistance；The balanced electricity
The both ends of resistance are connected to the control module.
Aspect as described above and any possible realization method, it is further provided a kind of realization method, the control mould
Block includes：
Sampling A/D chip component is connected to the both ends of the battery modules；
First relay assembly, including at least one first relay, the first end of each first relay and institute
State the first end connection of sampling A/D chip component, the battery core, the second end of each first relay and the equalizing resistance
First end connection, the 3rd end of each first relay is connected with the sampling A/D chip component；
Second relay assembly, including at least one second relay, the first end of each second relay and institute
State the second end connection of sampling A/D chip component, the battery core, the second end of each second relay and the equalizing resistance
Second end connection, the 3rd end of each second relay is connected with the sampling A/D chip component；
Control assembly, with the sampling A/D chip component, the second end of first relay assembly and described second after
The second end of electric appliance component is all connected with.
Aspect as described above and any possible realization method, it is further provided a kind of realization method, the control mould
Block further includes：
Accessory power supply component is connected between the anode of the control assembly and the battery modules.
Aspect as described above and any possible realization method, it is further provided a kind of realization method, the control mould
Block further includes：
Current divider is connected between the second end of each first relay and the first end of the equalizing resistance, institute
It states current divider and is additionally coupled to the control assembly.
Aspect as described above and any possible realization method, it is further provided a kind of realization method, the control mould
Block further includes：
3rd relay, be connected to the second end of each second relay and the equalizing resistance second end it
Between, the 3rd relay is additionally coupled to the control assembly.
Aspect as described above and any possible realization method, it is further provided a kind of realization method, described first after
The number of electric appliance, the number of second relay are equal with the number of battery core in the battery modules.
Aspect as described above and any possible realization method, it is further provided a kind of realization method, the balanced electricity
Road further includes：
Battery core temperature acquisition component is disposed in proximity to the position of the battery core, is connected to the control module.
Aspect as described above and any possible realization method, it is further provided a kind of realization method, the battery core temperature
The number for spending acquisition component is at least one.
Aspect as described above and any possible realization method, it is further provided a kind of realization method, the balanced electricity
Module is hindered, is further included：
Resistance temperature acquisition component is disposed in proximity to the position of the equalizing resistance, is connected to the control module.
Aspect as described above and any possible realization method, it is further provided a kind of realization method, the balanced electricity
Road further includes：
The battery modules, including：The multiple battery cores being connected in series.
On the other hand, the utility model provides a kind of cell managing device, including：Any realization method as described above
Equalizing circuit.
In another aspect, the utility model provides a kind of delivery vehicle, including：Any realization method is equal as described above
Weigh circuit.
A technical solution in above-mentioned technical proposal has the advantages that：
In the utility model, the control module in equalizing circuit is arranged on control panel, and includes the equal of equalizing resistance
The resistive module that weighs then external other regions in addition to control panel, in this way, avoiding control panel to equalizing resistance in heat dissipation side
The limitation in face reduces heat dissipation difficulty, therefore, can improve the euqalizing current value of equalizing resistance to a certain extent, meets big
Passive equilibrium under current-mode, meanwhile, to equalization efficiency can also be improved；Also, it due to the reduction for the difficulty that radiates, can drop
Cost in terms of low equalizing resistance heat dissipation.Therefore, technical solution provided by the utility model can improve to a certain extent
The euqalizing current of the passive equalizing circuit of resistance-type makes it meet the passive equilibrium under high current pattern.
【Description of the drawings】
It, below will be to attached drawing needed in the embodiment in order to illustrate more clearly of the technical solution of the utility model
It is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the utility model, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is the structure diagram of the embodiment one of equalizing circuit provided by the utility model；
Fig. 2 is the structure diagram of control module in equalizing circuit provided by the utility model；
Fig. 3 is the structure diagram of the embodiment two of equalizing circuit provided by the utility model；
Fig. 4 is the structure diagram of cell managing device provided by the utility model；
Fig. 5 is the structure diagram of delivery vehicle provided by the utility model.
【Specific embodiment】
In order to be better understood from the technical solution of the utility model, the utility model is retouched in detail below in conjunction with the accompanying drawings
It states.
It will be appreciated that the described embodiments are only a part of the embodiments of the utility model rather than whole implementation
Example.Based on the embodiment in the utility model, those of ordinary skill in the art are obtained without creative efforts
The all other embodiment obtained, shall fall within the protection scope of the present invention.
The term used in the utility model is only merely for the purpose of description specific embodiment, and is not intended to be limiting this
Utility model.In " one kind " of the utility model and singulative used in the attached claims, " described " and "the"
It is also intended to including most forms, unless context clearly shows that other meanings.
It should be appreciated that term "and/or" used herein is only a kind of incidence relation for describing affiliated partner, represent
There may be three kinds of relations, for example, A and/or B, can represent：Individualism A, exists simultaneously A and B, individualism B these three
Situation.In addition, character "/" herein, it is a kind of relation of "or" to typically represent forward-backward correlation object.
It will be appreciated that though relay may be described using term first, second, third, etc. in the utility model
Deng, but these relays should not necessarily be limited by these terms.These terms are only used for relay being distinguished from each other out.For example, it is not taking off
In the case of from the scope of the utility model, the first relay can also be referred to as the second relay, similarly, the second relay
It can be referred to as the first relay.
Depending on linguistic context, word as used in this " if " can be construed to " ... when " or " when ...
When " or " in response to determining " or " in response to detection ".Similarly, depending on linguistic context, phrase " if it is determined that " or " if detection
(condition or event of statement) " can be construed to " when definite " or " in response to determining " or " when the detection (condition of statement
Or event) when " or " in response to detecting (condition or event of statement) ".
It is smaller for the euqalizing current of the passive equalizing circuit of resistance-type in the prior art, it is difficult to meet under high current pattern
The problem of passive balanced, the utility model provides following resolving ideas：There is provided a kind of passive equalizing circuit, the control in the circuit
Molding block is arranged on control panel, and the external region beyond control panel of equalizing resistance, to avoid control panel to equalizing resistance
Limitation in terms of heat dissipation, and so that the euqalizing current of the equalizing circuit is larger, to meet the passive equilibrium under high current pattern.
Under the guiding of the thinking, this programme embodiment provides following feasible embodiment.
The utility model provides a kind of equalizing circuit.It please refers to Fig.1, is equalizing circuit provided by the utility model
The structure diagram of embodiment one, as shown in Figure 1, the equalizing circuit 100, including：
Control module 110 is arranged on control panel 200, is connected to the both ends of battery modules 130, and with battery modules 130
In the both ends of each battery core be all connected with；
Equalizing resistance module 120 is arranged at other regions in addition to control panel 200, including：Equalizing resistance 121；Balanced electricity
The both ends of resistance 121 are connected to control module 110.
When actually realizing this programme, battery modules 130 can be in series by multiple battery cores, for the ease of stating, this
Utility model is illustrated by taking the battery modules 130 that 8 battery cores form as an example.In actual application, in battery modules 130
Battery core number can be set as needed, such as 8,12 or 16, the utility model is not particularly limited this.This
Core material involved by utility model can include but is not limited to：LiFePO4 or ternary material.
As shown in Figure 1, control module 110 is connected between the anode (B+) of battery modules 130 and cathode (B-), also,
Control module 110 is also connected to the both ends of each battery core in battery modules 130 by a plurality of sampling line (C0~C8).
In actual application scenarios, control module 110 is arranged on control panel 200, and control panel 200 can be integrated in electricity
In pond managing device (Battery Management System, BMS).
In the utility model, the 120 external setting of equalizing resistance module is and existing due to not being arranged on control panel 200
The situation that equalizing resistance heat dissipation problem on control panel is limited in technology is compared, which can simplify radiator structure,
Heat dissipation cost, also, the influence for the electric current that can be born to equalizing resistance due to avoiding heat dissipation problem are reduced, euqalizing current can
Up to more than 2A, the passive equilibrium under high current pattern disclosure satisfy that.It is also, external due to equalizing resistance module 120, additionally it is possible to
The wire structures and its circuit structure of simplify control plate 200 improve the security performance of control panel 200.Also, control can also be simplified
Wire structures in making sheet 200, exploitativeness are stronger.
In a specific application scenarios, which can also be applied in energy storage electricity cabinet system, be conducive to
The space availability ratio of electric cabinet is improved, improves the energy density of electric cabinet.
The utility model illustrates the structure of control module 110.It please refers to Fig.2, is provided by the utility model
Equalizing circuit in control module structure diagram, which includes：
Sampling A/D chip component 111 is connected to the both ends of battery modules 130；
First relay assembly 112, including at least one first relay 112-x, (x is the integer more than 1, represents first
The number of relay), the first end of each first relay 112-x is connected with the first end of sampling A/D chip component 111, battery core,
The second end of each first relay 112-x is connected with the first end of equalizing resistance 121, and the of each first relay 112-x
Three ends are connected with sampling A/D chip component 111；
Second relay assembly 113, including at least one second relay 113-y, (y is the integer more than 1, represents second
The number of relay), the first end of each second relay 113-y is connected with the second end of sampling A/D chip component 111, battery core,
The second end of each second relay 113-y is connected with the second end of equalizing resistance 121, and the of each second relay 113-y
Three ends are connected with sampling A/D chip component 111；
Control assembly 114, second end (each first relay with sampling A/D chip component 111, the first relay assembly 112
The second end of device 112-x) and the second end (second end of each second relay 113-y) of the second relay assembly 113 it is equal
Connection.
In the utility model, by sampling line (C0~C8) even between the first relay 112-x and sampling A/D chip component 111
Connect and, between each battery core in sampling A/D chip component 111 and battery modules 130 be also by sample line (C0~C8) connect,
The connection relation does not identify in fig. 2.
Wherein, the 3rd end of the first relay 112-x is driving end, and the 3rd end of the second relay 113-y is also driving
End, these driving ends are connected to sampling A/D chip component 111, and the line between these driving ends and sampling A/D chip component 111 is
Drives line is expressed as CB1~CB8 in Fig. 2；And sampling A/D chip component 111 be controlled component 114 control realize sampling and
Driving to these relays.
As shown in Fig. 2, in the first relay 112-x and the second relay assembly 113 in the first relay assembly 112
Second relay 113-y (at this point, x=y) is one group, and is jointly subjected to the control of the drive signal of drives line CBx, by drives line
Drive signal control the first relay 112-x and the second relay 113-y's that CBx is sent is turned on and off.
For example, the first relay 112-1 and the second relay 113-1 is one group, and it is jointly subjected to the driving of drives line CB1
The control of signal, drive signal control the first relay 112-1 and the second relay 113-1's sent by drives line CB1 opens
It opens or closes.
Hereinafter, structure illustrates the balanced circuit in the equalizing circuit with reference to shown in Fig. 1 with Fig. 2.
In control module 110, sampling A/D chip component 111 is connected to battery modules by a plurality of sampling line (C0~C8)
The both ends of each battery core in 130, sampling A/D chip component 111 are connected to the first relay group by a plurality of sampling line (C1~C8)
Part 112, sampling A/D chip component 111 are also connected to the second relay assembly 113 by a plurality of sampling line (C0~C7), and first after
Electric appliance 112-x and the second relay 113-y is connected to the both ends of equalizing resistance 121, forms a complete balanced circuit.
Specifically, by taking first battery core in battery modules 130 as an example, the both sides of the battery core are connected to sampling line C0
With sampling line C1, by sampling line C0 and sampling line C1, the one side of the battery core, the first relay group by sampling line C1 connections
The equalizing resistance 121 in relay 112-1, equalizing resistance module 120 in part 112, by sample the second of line C0 connections after
Relay 113-1, the opposite side of the battery core in electric appliance component 113 constitute the balanced circuit of the battery core, can be by this
Weigh equilibrium treatment of the circuit realization to the battery core.
In the utility model, the number of the first relay 112-x, the number of the second relay 113-y are and battery modules
The number of battery core is equal in 130.
In the utility model, based on Fig. 1 and equalizing circuit structure shown in Fig. 2, balanced place is being performed to battery modules 130
, it is necessary to equilibrium treatment be carried out to therein one economize on electricity core every time, after the battery core equilibrium, in the battery modules 130 during reason
Another battery core carry out equilibrium treatment, until the battery modules 130 reach balanced.
In actual implementation, equilibrium condition can be set as needed.Setting based on equilibrium condition, it is only necessary to battery
The battery core that the equilibrium condition is unsatisfactory in module 130 performs equilibrium treatment, until the battery core meets the equilibrium condition.
And in one is realized scene, the difference of equilibrium condition can be unsatisfactory for according to each battery core in battery modules 130
Situation determines the priority of each battery core to be equalized, then, to be equalized to these successively according to the order of priority from high to low
Battery core performs equilibrium treatment.
When realizing this programme, control assembly 114 can be micro-control unit (Microcontroller Unit, MCU).
And, it is contemplated that, it is necessary to the power supply of low-tension supply when control assembly 114 is MCU, therefore, as shown in Fig. 2, at this
In control module 110, further include：
Accessory power supply component 115 is connected between the anode of control assembly 114 and battery modules 130.
Wherein, accessory power supply component 115 is used for the electric energy for providing battery modules 130 and carries out power conversion, so that its
Output power meets the power demands of control assembly 114, so as to which by battery modules 130, component 114 is powered in order to control.
In practical applications, which can be power converter or direct current transducer DC/DC.
As shown in Fig. 2, during one is realized, which further includes：
Current divider 116 is connected between the second end of each first relay 112-x and the first end of equalizing resistance 121,
Current divider 116 is additionally coupled to control assembly 114.
Under this configuration, control assembly 114 can flow through the current value of current divider 116 by acquisition, to judge this
Whether weighing apparatus process is normally carried out, and when judging balancing procedure exception in order to the current value that basis collects, can cut off the equilibrium
Circuit improves the stability and security of the equalizing circuit.
As shown in Fig. 2, during another realization, control module 110 further includes：
3rd relay 117 is connected to the second end of each second relay 113-y and the second end of equalizing resistance 121
Between, the 3rd relay 117 is additionally coupled to control assembly 114.
In the equalizing circuit, when control assembly 114 judges balancing procedure exception, can by control the 3rd after
The mode that electric appliance 117 disconnects, has cut off equalizing circuit major loop, so as to cut off the equalizing circuit, realization method is simple and reliable.
When actually realizing this programme, control assembly 114 can also be single in the first relay assembly 112 by cutting off
The mode of first relay 112-x or the single second relay 113-y in the second relay assembly 113 cut off balanced circuit.
This mode of operation more has specific aim, when switching the balanced circuit of single battery core, does not influence the balanced circuit of other battery cores
Break-make, flexibility is higher.
In the utility model, it is contemplated that when carrying out equilibrium treatment, the temperature of each battery core can also be referred to, therefore, refer to
Fig. 3 is the structure diagram of the embodiment two of equalizing circuit provided by the utility model, which, which removes, includes
Control module 110 as described above is with outside equalizing resistance module 120, further including：
Battery core temperature acquisition component 140 is disposed in proximity to the position of battery core, is connected to control module 110.
The battery core temperature acquisition component 140 is used to gather the temperature of battery core in battery modules 130, in order to according to battery core
Temperature, judges whether the balancing procedure of battery core is abnormal, and improves the stability and security of balancing procedure.
It, can be by battery core temperature acquisition component 140 when the accuracy rate to battery core temperature is of less demanding in the utility model
The sampling A/D chip component 111 being connected in control module 110 at this point, being conducive to save system resource, improves the effect of collecting temperature
Rate；Alternatively, when the accuracy rate to battery core temperature is more demanding, battery core temperature acquisition component 140 can be connected to control mould
Control assembly 114 in block 110.
Wherein, it is contemplated that the number of battery core is at least one in battery modules 130, in order to improve the temperature of the battery core collected
The accuracy rate of degree, the number of the battery core temperature acquisition component 140 is at least one.
When actually realizing this programme, the number correspondence between battery core and battery core temperature acquisition component 140 can root
According to needing to set, the utility model is not particularly limited this.
For example, the number correspondence between battery core and battery core temperature acquisition component 140 shares one for every 4 battery cores
During a battery core temperature acquisition component 140, for equalizing circuit 100 as shown in Figure 3, possess two electricity in the equalizing circuit 100
Core temperature acquisition component 140 (140-1 and 140-2 are expressed as in Fig. 3).Similarly, if mutually being gone here and there comprising 12 in battery modules 130
The battery core of connection, then the number of battery core temperature acquisition component 140 is 3；If 16 electricity being serially connected are included in battery modules 130
Core, then the number of battery core temperature acquisition component 140 is 4.
In the utility model, it is contemplated that the temperature of the equalizing resistance 121 set in equalizing resistance module 120 can also be to
Characterize whether the equalizing circuit is abnormal, therefore, as shown in figure 3, the equalizing resistance module 120, further includes：
Resistance temperature acquisition component 122 is disposed in proximity to the position of equalizing resistance 121, is connected to control module 110.
The resistance temperature acquisition component 122 is used to gather the temperature of equalizing resistance 121, in order to according to the equilibrium collected
The temperature of resistance 121, judges whether current balancing procedure is abnormal, and improves the stability and security of balancing procedure.
In the utility model, when the temperature accuracy rate to equalizing resistance 121 is of less demanding, resistance temperature can be gathered
Component 122 is connected to the sampling A/D chip component 111 in control module 110, at this point, being conducive to save system resource, improves acquisition
The efficiency of temperature；Alternatively, when the temperature accuracy rate to equalizing resistance 121 is more demanding, it can be by resistance temperature acquisition component
122 are connected to the control assembly 114 in control module 110.
Temperature acquisition component involved by the utility model, including battery core temperature acquisition component 140 and/or resistance temperature
Acquisition component 122 can be thermistor.
It during another concrete implementation, please refers to Fig.3, is further included in the equalizing circuit 100：
Battery modules 130, including：The multiple battery cores being connected in series.
Based on the equalizing circuit 100 shown by any one of Fig. 1~Fig. 3, the utility model gives following feasible control
Method, the control method can be implemented in control assembly 114.
When control assembly 114 powers on and after normal initialization, into main program, the 3rd relay 117 is closed.
Afterwards, the equalizing circuit is judged whether normal operation.If being unable to operate normally, the 3rd relay 117 of disconnection, and on
Status information is reported, returns to main program；If alternatively, normal operation, the voltage data of 130 all battery cores of battery modules is gathered, and
Highest preferentially balanced battery core is set according to the voltage data collected.
Afterwards, judge whether can to open the equilibrium treatment of battery core.If equilibrium treatment cannot be opened, the 3rd relay is disconnected
Device 117, uploaded state information return to main program；Alternatively, if equilibrium treatment can be opened, highest priority battery core correspondence is opened
The first relay 112-x and the second relay 113-y.
During equilibrium treatment is performed, whether detection euqalizing current is normal.If euqalizing current is abnormal, closing should
Battery core corresponding first relay 112-x and the second relay 113-y are back to and disconnect the 3rd relay 117, uploaded state letter
Breath returns to main program；Alternatively, if unlatching battery core equilibrium post-equalization electric current is normal, judge that battery core temperature acquisition component 140 gathers
To battery core temperature and resistance temperature that resistance temperature acquisition component 122 collects it is whether normal.
If there are at least one temperature is abnormal in battery core temperature or resistance temperature, close the battery core corresponding first after
Electric appliance 112-x and the second relay 113-y, jumps to and disconnects the 3rd relay 117, and uploaded state information returns to main program；Or
Person if battery core temperature or resistance temperature are normal, continues to execute equilibrium treatment, in this process, keeps the first relay
The closure of 112-x, the second relay 113-y and the 3rd relay 117.
Judge whether the equilibrium treatment of the battery core has been completed.If the equilibrium treatment of the battery core does not complete, judgement is back to
The whether normal step of euqalizing current；If alternatively, the equilibrium treatment of the battery core has been completed, system is back to whether normal operation
The step of.
Above method is the controlling party in a kind of specific application scenarios of equalizing circuit 100 provided by the utility model
Method only illustrates the control principle of the equalizing circuit 100, not limiting the application.
Based on above-mentioned equalizing circuit, the utility model additionally provides a kind of cell managing device.
It please refers to Fig.4, is the structure diagram of cell managing device provided by the utility model, which fills
400 are put, including：
The equalizing circuit 100 of any realization method as described above.
During a concrete implementation, which can be battery management system (Battery
Management System, BMS).
Based on above-mentioned equalizing circuit, the utility model additionally provides a kind of delivery vehicle.
Fig. 5 is refer to, is the structure diagram of delivery vehicle provided by the utility model, which wraps
It includes：
The equalizing circuit 100 of any realization method as described above.
During a concrete implementation, which can be：Electric vehicle, wherein, electric vehicle includes：Electricity
Electrical automobile.
The technical solution of the utility model has the advantages that：
In the utility model, the control module in equalizing circuit is arranged on control panel, and includes the equal of equalizing resistance
The resistive module that weighs then external other regions in addition to control panel, in this way, avoiding control panel to equalizing resistance in heat dissipation side
The limitation in face reduces heat dissipation difficulty, therefore, can improve the euqalizing current value of equalizing resistance to a certain extent, meets big
Passive equilibrium under current-mode, meanwhile, to equalization efficiency can also be improved；Also, it due to the reduction for the difficulty that radiates, can drop
Cost in terms of low equalizing resistance heat dissipation.Therefore, technical solution provided by the utility model can improve to a certain extent
The euqalizing current of the passive equalizing circuit of resistance-type makes it meet the passive equilibrium under high current pattern.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
The spirit of utility model and any modification, equivalent substitution, improvement and etc. within principle, done, should be included in the utility model
Within the scope of protection.
Claims (12)
1. a kind of equalizing circuit, which is characterized in that including：
Control module is arranged on control panel, is connected to the both ends of battery modules, and with each battery core in the battery modules
Both ends be all connected with；
Equalizing resistance module is arranged at other regions in addition to the control panel, including：Equalizing resistance；The equalizing resistance
Both ends are connected to the control module.
2. equalizing circuit according to claim 1, which is characterized in that the control module includes：
Sampling A/D chip component is connected to the both ends of the battery modules；
First relay assembly, including at least one first relay, the first end of each first relay respectively with institute
The first end that sampling A/D chip component is stated with the battery core connects, the second end of each first relay and the equalizing resistance
First end connection, the 3rd end of each first relay is connected with the sampling A/D chip component；
Second relay assembly, including at least one second relay, the first end of each second relay is adopted with described
The second end connection of sample chip assembly, the battery core, the of the second end of each second relay and the equalizing resistance
Two ends connect, and the 3rd end of each second relay is connected with the sampling A/D chip component；
Control assembly, respectively with the sampling A/D chip component, the second end of first relay assembly and described second after
The second end connection of electric appliance component.
3. equalizing circuit according to claim 2, which is characterized in that the control module further includes：
Accessory power supply component is connected between the anode of the control assembly and the battery modules.
4. equalizing circuit according to claim 2, which is characterized in that the control module further includes：
Current divider is connected between the second end of each first relay and the first end of the equalizing resistance, described point
Stream device is additionally coupled to the control assembly.
5. equalizing circuit according to claim 2, which is characterized in that the control module further includes：
3rd relay is connected between the second end of each second relay and the second end of the equalizing resistance, institute
It states the 3rd relay and is additionally coupled to the control assembly.
6. equalizing circuit according to claim 2, which is characterized in that the number of first relay, described second after
The number of electric appliance is equal with the number of battery core in the battery modules.
7. equalizing circuit according to claim 1, which is characterized in that the equalizing circuit further includes：
Battery core temperature acquisition component is disposed in proximity to the position of the battery core, is connected to the control module.
8. equalizing circuit according to claim 7, which is characterized in that the number of the battery core temperature acquisition component is at least
One.
9. equalizing circuit according to claim 1, which is characterized in that the equalizing resistance module further includes：
Resistance temperature acquisition component is disposed in proximity to the position of the equalizing resistance, is connected to the control module.
10. equalizing circuit according to claim 1, which is characterized in that the equalizing circuit further includes：
The battery modules, including：The multiple battery cores being connected in series.
11. a kind of cell managing device, which is characterized in that including：Equalizing circuit as described in any one of claim 1 to 10.
12. a kind of delivery vehicle, which is characterized in that including：Equalizing circuit as described in any one of claim 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721560275.6U CN207381501U (en) | 2017-11-21 | 2017-11-21 | Equalizing circuit, cell managing device and delivery vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721560275.6U CN207381501U (en) | 2017-11-21 | 2017-11-21 | Equalizing circuit, cell managing device and delivery vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207381501U true CN207381501U (en) | 2018-05-18 |
Family
ID=62332886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721560275.6U Active CN207381501U (en) | 2017-11-21 | 2017-11-21 | Equalizing circuit, cell managing device and delivery vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207381501U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112582762A (en) * | 2019-09-30 | 2021-03-30 | 比亚迪股份有限公司 | Battery with a battery cell |
-
2017
- 2017-11-21 CN CN201721560275.6U patent/CN207381501U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112582762A (en) * | 2019-09-30 | 2021-03-30 | 比亚迪股份有限公司 | Battery with a battery cell |
| CN112582762B (en) * | 2019-09-30 | 2021-10-22 | 比亚迪股份有限公司 | Battery with a battery cell |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3809553B1 (en) | Battery system | |
| CN106026034B (en) | A kind of over-current protection method and circuit of battery battery core | |
| CN109995102A (en) | A kind of equal balance system of Prospect of EVS Powered with Batteries and control method | |
| CN107895982B (en) | Charging and discharging equipment, method and device | |
| CN105911891B (en) | A kind of control method and battery management system of defencive function | |
| CN113783273A (en) | Battery string rapid self-balancing charge-discharge protection circuit and control method | |
| CN108666713A (en) | Battery pack heating device for double-vehicle heating and control method | |
| CN204131181U (en) | A kind of based on the modular battery management system of local with the two-layer management system of the overall situation | |
| CN207381501U (en) | Equalizing circuit, cell managing device and delivery vehicle | |
| KR20200020486A (en) | Apparatus and method for balancing battery module | |
| CN109450051A (en) | A kind of battery system and its control method | |
| CN113595180B (en) | Power battery device | |
| CN103413980A (en) | Intelligent hybrid battery management system | |
| CN217036766U (en) | Power battery device | |
| CN105515032B (en) | intelligent micro-grid energy storage control method | |
| CN205355175U (en) | Power battery organizes structure | |
| CN219937964U (en) | Balanced regulation system of energy storage system and battery system | |
| CN116198387A (en) | Battery inconsistency control method and system | |
| CN208674938U (en) | A kind of balancer of battery pack | |
| CN116388324A (en) | Voltage equalization module, method, energy storage device, and readable storage medium | |
| TWM414756U (en) | Active balancing circuit for battery set having a plurality of battery units | |
| EP3974850A1 (en) | Parallel battery relay diagnosis device and method | |
| CN108437832A (en) | A kind of battery management system of new-energy automobile | |
| CN210181195U (en) | Contactor state detection circuit | |
| CN109450044A (en) | Charging pile electric energy management method and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220121 Address after: 352100 science and technology building, No. 2, Xingang Road, Zhangwan Town, Jiaocheng District, Ningde City, Fujian Province Patentee after: Ningde Shidai Runzhi Software Technology Co.,Ltd. Address before: 352100 Xingang Road, Zhangwan Town, Jiaocheng District, Ningde, Fujian 1 Patentee before: Contemporary Amperex Technology Co.,Ltd. |