CN209344827U - Battery status regulation device and battery system - Google Patents

Battery status regulation device and battery system Download PDF

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Publication number
CN209344827U
CN209344827U CN201920024394.2U CN201920024394U CN209344827U CN 209344827 U CN209344827 U CN 209344827U CN 201920024394 U CN201920024394 U CN 201920024394U CN 209344827 U CN209344827 U CN 209344827U
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voltage
battery cell
bidirectional
battery
buck
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CN201920024394.2U
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申永鹏
葛高瑞
刘安康
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Zhengzhou University of Light Industry
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Zhengzhou University of Light Industry
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

The application provides a kind of battery status regulation device and battery system.Bidirectional up-down volt circuit and battery cell and external electronic device in described device are electrically connected, and battery cell is made to transmit electric power signal through Bidirectional up-down volt circuit and external electronic device;Control circuit and battery cell and external electronic device are electrically connected, to acquire first voltage numerical value and second voltage numerical value;Control circuit and communicating circuit are electrically connected, to carry out information exchange by communicating circuit and main control device;Control circuit and Bidirectional up-down volt circuit are electrically connected, and carry out the processing of isostatic uplift and depression pressure to generate charge and discharge buck signal and be sent to Bidirectional up-down volt circuit, or generate fault-tolerant isolation signals and be sent to Bidirectional up-down volt circuit and carry out fault-tolerant isolation.Described device can carry out electric voltage equalization control high-efficient and that low energy consumption in the charge and discharge process of battery cell, and can carry out fault-tolerant isolation for matched battery cell, to improve the steady operation duration and service life of battery system.

Description

Battery status regulation device and battery system
Technical field
This application involves cell voltages to manage technical field, in particular to a kind of battery status regulation device and electricity Cell system.
Background technique
With the fast development of electronic technology, the application field of power battery is more extensive, and for power battery, often A single battery can have little bit different because of production technology problem between each other, so that discharge process or charging process be made to will cause Voltage value and voltage capacity in power battery pack on each battery cell is mutually different, influences the optimal performance of power battery pack And service life.It to guarantee that power battery can play its optimal performance, and prolongs its service life, needs using cell voltage Control technology carries out rationally and effectively voltage balance management to each battery cell, reduces the voltage difference between battery cell.
And currently, industry major flow is higher than the low battery of electricity frequently with the high battery cell of equalizing resistance consumption electricity The mode of the voltage of monomer, or the voltage segment for being higher than the low battery cell of electricity of the high battery cell of electricity is transferred to electricity The mode on low battery cell is measured, to reduce the voltage difference between battery cell, to achieve the purpose that voltage balance management.But Above two mode would generally make battery cell because generating amount of heat or repeatedly invalid charge and discharge, and there are biggish energy Loss is unable to ensure power battery with stable operating time, and whole voltage balance management is ineffective.
Utility model content
In order to overcome above-mentioned deficiency in the prior art, the application's is designed to provide a kind of battery status regulation device And battery system, the battery status regulation device can in the charging process of battery cell or discharge process to battery cell into The electric voltage equalization control that row equalization efficiency is high and energy loss is low, and fault-tolerant isolation can be carried out for matched battery cell, with Improve the steady operation duration and service life of battery system.
For device, the embodiment of the present application provides a kind of battery status regulation device, and described device is applied to include more The battery system of group battery cell, every group of battery cell correspond to a battery status regulation device, battery list described in multiple groups Body is cascaded by corresponding battery status regulation device, and described device includes Bidirectional up-down volt circuit, control Circuit and communicating circuit processed;
The Bidirectional up-down volt circuit and the battery cell and external electronic device are electrically connected, and make the battery cell Electric power signal is transmitted through the Bidirectional up-down volt circuit and the external electronic device;
The control circuit is electrically connected with the battery cell and the external electronic device respectively, described for acquiring The second voltage numerical value transmitted at the first voltage numerical value transmitted at battery cell and the external electronic device;
The control circuit and the communicating circuit are electrically connected, will be collected described for passing through the communicating circuit First voltage numerical value is sent to main control device, and receives by the main control device root when the battery cell is in discharge condition According to the electric discharge buck ratio of the corresponding first voltage numeric feedback of multiple groups battery cell, or receive anti-by the main control device The faults-tolerant control signal of feedback;
The control circuit and the Bidirectional up-down volt circuit are electrically connected, for generating electric discharge buck signal or charging Buck signal, and the buck signal of generation is sent to the Bidirectional up-down volt circuit, make the Bidirectional up-down volt circuit According to the buck signal, the electric power signal transmitted between the battery cell and the external electronic device is carried out equal The buck that weighs processing, wherein the electric discharge buck signal is by the control circuit when the battery cell is in discharge condition According to the when collected second voltage numerical generation of the electric discharge buck got, the charging buck signal is by institute Control circuit is stated to limit voltage according to the charging of the battery cell when the battery cell is in charged state and collect The first voltage numerical generation;
The control circuit is also used to when receiving the faults-tolerant control signal, is generated according to the faults-tolerant control signal Fault-tolerant isolation signals, and the fault-tolerant isolation signals are sent to the Bidirectional up-down volt circuit, make the Bidirectional up-down piezoelectricity Road carries out fault-tolerant isolation to the matched battery cell.
For system, the embodiment of the present application provides a kind of battery system, and the system comprises multiple groups single batteries and more A above-mentioned battery status regulation device, the corresponding battery status regulation device of battery cell described in every group, every group of institute It states battery cell and is connect through the corresponding battery status regulation device with external electronic device, wherein battery cell described in multiple groups It is cascaded by corresponding battery status regulation device.
In terms of existing technologies, battery status regulation device and battery system provided by the embodiments of the present application have with It is lower the utility model has the advantages that the battery status regulation device can in the charging process of battery cell or discharge process to battery cell into The electric voltage equalization control that row equalization efficiency is high and energy loss is low, and fault-tolerant isolation can be carried out for matched battery cell, with Improve the steady operation duration and service life of battery system.The battery status regulation device is applied to include multiple groups battery list The battery system of body, every group of battery cell correspond to a battery status regulation device, and battery cell described in multiple groups passes through each The self-corresponding battery status regulation device is cascaded.The battery status regulation device includes Bidirectional up-down piezoelectricity Road, control circuit and communicating circuit.The Bidirectional up-down volt circuit and the battery cell and external electronic device are electrically connected, The battery cell is set to transmit electric power signal through the Bidirectional up-down volt circuit and the external electronic device.The control circuit It is electrically connected respectively with the battery cell and the external electronic device, for acquiring transmit at the battery cell first The second voltage numerical value transmitted at voltage value and the external electronic device.The control circuit and communicating circuit electricity Property connection, for the collected first voltage numerical value to be sent to main control device by the communicating circuit, and reception by The main control device is when the battery cell is in discharge condition according to the corresponding first voltage number of multiple groups battery cell It is worth the electric discharge buck ratio of feedback, or receives the faults-tolerant control signal fed back by the main control device.The control circuit and institute The electric connection of Bidirectional up-down volt circuit is stated, for generating electric discharge buck signal or charging buck signal, and by the institute of generation It states buck signal and is sent to the Bidirectional up-down volt circuit, make the Bidirectional up-down volt circuit according to the buck signal, The processing of isostatic uplift and depression pressure is carried out to the electric power signal transmitted between the battery cell and the external electronic device, thus In the charging process or discharge process of battery cell, the electric voltage equalization that equalization efficiency is high and energy loss is low is carried out to battery cell Control.And the control circuit is also used to when receiving the faults-tolerant control signal simultaneously, according to the faults-tolerant control signal Fault-tolerant isolation signals are generated, and the fault-tolerant isolation signals are sent to the Bidirectional up-down volt circuit, make the Bidirectional up-down Volt circuit carries out fault-tolerant isolation to the matched battery cell, to pass through matching between fault-tolerant isolation and electric voltage equalization control It closes, extends the steady operation duration and service life of battery system.Wherein, the electric discharge buck signal is by the control circuit When the battery cell is in discharge condition according to the when collected second voltage number of the electric discharge buck got Value generates, and the charging buck signal transmits electricity to the battery cell in the external electronic device from the control circuit When energy signal, that is, battery cell charging, voltage and the collected first voltage number are limited according to the charging of the battery cell Value generates.
To enable the above objects, features, and advantages of the application to be clearer and more comprehensible, the application preferred embodiment is cited below particularly, And cooperate appended attached drawing, it is described in detail below.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair The restriction of the claim of this application protection scope, for those of ordinary skill in the art, what is do not made the creative labor Under the premise of, it can also be obtained according to these attached drawings other relevant attached drawings.
Fig. 1 is the block diagram of battery system provided by the embodiments of the present application.
Fig. 2 is the first block diagram of battery status regulation device provided by the embodiments of the present application.
Fig. 3 is second of block diagram of battery status regulation device provided by the embodiments of the present application.
Fig. 4 is the third block diagram of battery status regulation device provided by the embodiments of the present application.
Icon: 10- battery system;11- battery cell;100- battery status regulation device;200- external electronic device; 300- main control device;110- Bidirectional up-down volt circuit;120- control circuit;130- communicating circuit;The voltage-controlled system of 111- Bidirectional up-down Chip;112- bidirectional Buck-Boost converter;121- microcontroller;131-CAN transceiver;132- common mode choke coil;133- is bis- To transient current suppressor;140- power circuit;141-DC/DC boost chip;150- data storage circuitry.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is Some embodiments of the present application, instead of all the embodiments.The application being usually described and illustrated herein in the accompanying drawings is implemented The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiments herein provided in the accompanying drawings is not intended to limit below claimed Scope of the present application, but be merely representative of the selected embodiment of the application.Based on the embodiment in the application, this field is common Technical staff's every other embodiment obtained without creative efforts belongs to the model of the application protection It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present application, it should be noted that term " first ", " second ", " third " etc. are only used for distinguishing and retouch It states, is not understood to indicate or imply relative importance.It should also be noted that, unless otherwise clearly defined and limited, Term " setting ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to removable Connection is unloaded, or is integrally connected;It can be mechanical connection, be also possible to be electrically connected;It can be directly connected, it can also be in Between medium be indirectly connected, can be the connection inside two elements.It for the ordinary skill in the art, can be specific Situation understands the concrete meaning of above-mentioned term in this application.
With reference to the accompanying drawing, it elaborates to some embodiments of the application.In the absence of conflict, following Feature in embodiment and embodiment can be combined with each other.
Fig. 1 is please referred to, is the block diagram of battery system 10 provided by the embodiments of the present application.In the embodiment of the present application In, the battery system 10 includes multiple groups battery cell 11 and multiple battery status regulation devices 100, and every group of battery cell 11 is right Answer the battery status regulation device 100.Battery cell 11 described in multiple groups is connected in series between each other, the adjacent battery Monomer 11 ensures battery cell 11 described in two adjacent groups by the connection between corresponding battery status regulation device 100 Between series connection so that battery cell 11 described in multiple groups by corresponding battery status regulation device 100 it Between connection be serially connected.Battery cell 11 described in every group is through the corresponding battery status regulation device 100 and outside Electronic equipment 200 connects, and makes the battery cell 11 through the battery status regulation device 100 and the external electronic device 200 Transmit electric power signal.
Wherein, every group of battery cell 11 may include at least one single battery, included in every group of battery cell 11 At least one described single battery is parallel with one another together.It includes external power supply that the external electronic device 200, which can be, Charging equipment is also possible to electrical equipment.When the external electronic device 200 is charging equipment and the battery cell 11 does not damage Bad when, the electric power signal transmitted between the external electronic device 200 and corresponding battery cell 11 are set from the external electrical Standby 200 electric power signals transmitted to the battery cell 11, the external electronic device 200 is to the battery cell 11 at this time It charges, the battery cell 11 is in charged state;When the external electronic device 200 is electrical equipment and the battery When monomer 11 does not damage, the electric power signal transmitted between the external electronic device 200 and corresponding battery cell 11 is from described The electric power signal that battery cell 11 is transmitted to the external electronic device 200, the battery cell 11 is to the outside at this time Electronic equipment 200 is powered, and the battery cell 11 is in discharge condition.
In the present embodiment, the battery status regulation device 100 be used for corresponding battery cell 11 charging process or It carries out the electric voltage equalization that equalization efficiency is high and energy loss is low to the battery cell 11 in discharge process to manage, and can be for matching Battery cell 11 carry out fault-tolerant isolation, to extend the steady operation duration and service life of battery system 10.Wherein, the appearance Mistake isolation disconnects the electric connection corresponded between battery cell 11 and the external electronic device 200 for indicating, i.e., individually every From the battery cell 11, it is allowed to be not involved in remaining power monomer 11 and the external electronic device 200 in the battery system 10 Between electric power signal transmission, the only phase of battery status regulation device 100 corresponding to the battery cell 11 segregate at this time When in the conducting wire of the connection external electronic device 200 and other battery status regulation devices 100.
It referring to figure 2., is the first block diagram of battery status regulation device 100 provided by the embodiments of the present application. In the embodiment of the present application, the battery status regulation device 100 includes Bidirectional up-down volt circuit 110, control circuit 120 and leads to Interrogate circuit 130.
In the present embodiment, the Bidirectional up-down volt circuit 110 and corresponding battery cell 11 and external electronic device 200 are electric Property connection, so that the battery cell 11 is carried out electric energy letter through the Bidirectional up-down volt circuit 110 and the external electronic device 200 Number transmission, wherein the Bidirectional up-down volt circuit 110 can to from the battery cell 11 to the external electronic device 200 pass Defeated electric power signal carries out the high boosting processing of equalization efficiency or decompression processing, so that at this time in the external electronic device 200 The voltage value for locating the electric power signal of transmission maintains a specific output voltage numerical value;The Bidirectional up-down volt circuit 110 The high boosting of equalization efficiency can be carried out to the electric power signal transmitted from the external electronic device 200 to the battery cell 11 Processing or decompression processing, so that the voltage value for the electric power signal transmitted at the battery cell 11 at this time maintains a spy Fixed battery voltage values.Wherein, two neighboring battery in multiple battery status regulation devices 100 in the battery system 10 The corresponding Bidirectional up-down volt circuit 110 of condition regulation device 100 is serially connected together, each battery status regulation device Bidirectional up-down volt circuit 110 in 100 is connected in parallel with corresponding battery cell 11, and the external electronic device 200 is directly It is electrically connected with the multiple battery status regulation devices 100 being cascaded, so that in each battery status regulation device 100 Bidirectional up-down volt circuit 110 connects corresponding battery cell 11 and the external electronic device 200 simultaneously, and ensures the battery Monomer 11 and the external electronic device 200 are through the Bidirectional up-down volt circuit 110 progress electric power signal transmission.
In the present embodiment, the control circuit 120 respectively with the battery cell 11 and the external electronic device 200 It is electrically connected, is passed at the first voltage numerical value transmitted at the battery cell 11 and the external electronic device 200 for acquiring Defeated second voltage numerical value.Wherein, when the battery cell 11 transmits electric power signal to the external electronic device 200, institute Stating first voltage numerical value i.e. is the battery voltage values directly exported by the battery cell 11, and the second voltage numerical value is served as reasons The first voltage numerical value carries out the discharge voltage number of buck treated reality output through the Bidirectional up-down volt circuit 110 Value;When the external electronic device 200 transmits electric power signal to the battery cell 11, the second voltage numerical value is by institute The charging voltage numerical value that external electronic device 200 directly inputs is stated, the first voltage numerical value is by the second voltage numerical value It carries out buck through the Bidirectional up-down volt circuit 110 treated to be effectively outputed to charging voltage at the battery cell 11 Numerical value.
In the present embodiment, the control circuit 120 is electrically connected with the communicating circuit 130, for by described logical It interrogates circuit 130 and sends the real-time collected first voltage numerical value of the control circuit 120 to main control device 300, so that institute Main control device 300 is stated to be judged whether to be directed to battery cell 11 corresponding to the first voltage numerical value according to the first voltage numerical value It generates and feedback fault-tolerant controls signal, or be to the external electronic device 200 transmission electric power signal in the battery cell 11 According to the corresponding first voltage numerical generation of multiple groups battery cell 11 and anti-when the battery cell 11 is in discharge condition Present the corresponding electric discharge buck ratio of every group of battery cell 11.
In the present embodiment, each battery cell 11 for including in the main control device 300 and the battery system 10 is corresponding Battery status regulation device 100 communicate to connect, for getting current each battery by the battery status regulation device 100 The first voltage numerical value of monomer 11, and judge whether to be directed to corresponding to the first voltage numerical value according to the first voltage numerical value Battery cell 11 issues faults-tolerant control signal.When the main control device 300 determines first electricity according to the first voltage numerical value Battery cell 11 corresponding to pressure numerical value is when damaging, and the main control device 300 will be to electricity corresponding to the battery cell 11 Pond condition regulation device 100 sends faults-tolerant control signal, so that the battery status regulation device 100 is to matched battery cell 11 carry out fault-tolerant isolation.
In the present embodiment, when the main control device 300 is determining not needing for corresponding to the first voltage numerical value Battery cell 11 issues faults-tolerant control signal, and each battery cell 11 is transmitting electric power signal to the external electronic device 200 When, according to the initial buck for the external electronic device 200 of the battery system 10 than numerical value and each battery cell 11 current first voltage numerical value calculate every group of corresponding electric discharge buck ratio of battery cell 11.Wherein, described Initial buck is that the battery status regulation device 100 carries out initializing operation electric discharge in corresponding battery cell 11 than numerical value When first voltage numerical value and second voltage numerical value between predeterminated voltage regulate and control ratio, for example, 1:2 or 2:3 etc..The electric discharge Buck ratio be the battery status regulation device 100 to the matched battery cell 11 to the external electronic device 200 It transmits electric power signal and carries out target when equalizing voltage regulation between first voltage numerical value and second voltage numerical value to be achieved Regulating and controlling voltage ratio, such as 4:7 or 4:9.
In an embodiment of the present embodiment, when each battery cell 11 is in discharge condition, and the main control device 300 when getting the first voltage numerical value of each battery cell 11, and the main control device 300 can calculate the first of each battery cell 11 Average voltage numerical value between voltage value, the voltage then calculated between every group of battery cell 11 and the average voltage numerical value are inclined Difference, and by the voltage deviation of each battery cell 11 divided by the proportional numerical value obtained after the average voltage numerical value, and it is described initial Buck carries out sum operation than the reciprocal of numerical value, the proportional numerical value finally obtained using sum operation it is reciprocal as correspondence battery The electric discharge buck ratio of monomer 11.Such as: there are the battery cell 11 of three discharge conditions, three groups of battery cells 11 respective One voltage value is 3V, 4V and 5V, wherein initial buck is 1:2, then the first voltage number of three groups of battery cells 11 than numerical value Average voltage numerical value between value is 4V, and it is 4:7 that first voltage numerical value, which is the electric discharge buck ratio of the battery cell 11 of 3V, at this time, First voltage numerical value is that the electric discharge buck ratio of the battery cell 11 of 4V is 1:2, and first voltage numerical value is the battery cell 11 of 5V Electric discharge buck ratio be 4:9.
In the present embodiment, when each group battery cell 11 in discharge condition is calculated in the main control device 300 It discharges after buck ratio, the communicating circuit in battery status regulation device 100 corresponding to every group of battery cell 11 can be passed through 130, by electric discharge buck corresponding to the battery cell 11 than the control circuit that is sent in the battery status regulation device 100 120。
In the present embodiment, the control circuit 120 is electrically connected with the Bidirectional up-down volt circuit 110, for generating Discharge buck signal or charging buck signal, and the buck signal of generation is sent to the Bidirectional up-down piezoelectricity Road 110 makes the Bidirectional up-down volt circuit 110 according to the buck signal, in the battery cell 11 and the outside The electric power signal transmitted between electronic equipment 200 carries out the processing of isostatic uplift and depression pressure.
Wherein, the electric discharge buck signal is in discharge condition in the battery cell 11 by the control circuit 120 When according to the when collected second voltage numerical generation of the electric discharge buck got, the Bidirectional up-down piezoelectricity Road 110 carries out balanced boosting regulation to the second voltage numerical value according to the electric discharge buck signal.
The charging buck signal by the control circuit 120 when the battery cell 11 is in charged state according to The charging limitation voltage of the battery cell 11 and the collected first voltage numerical generation, the Bidirectional up-down volt circuit 110 carry out balanced boosting regulation to the first voltage numerical value according to the electric discharge buck signal, and the charging limits voltage For indicating the voltage value of the maximum electricity capacity of the battery cell 11.
In the present embodiment, when the battery cell 11 is in discharge condition, and the battery status regulation device 100 obtains When getting electric discharge buck ratio corresponding to the battery cell 11, the control circuit 120 will be based on the electric discharge buck ratio And the discharge target buck is calculated than corresponding discharge target voltage value in current first voltage numerical value, institute at this time It is more identical than obtained voltage value divided by the electric discharge buck as the first voltage numerical value to state discharge target voltage value. Then the control circuit 120 will generate the electric discharge buck including the discharge target voltage value Yu second voltage numerical value Signal, and the electric discharge buck signal is sent to the Bidirectional up-down volt circuit 110, make the Bidirectional up-down volt circuit 110 are compared the second voltage numerical value with the discharge target voltage value, are directed to institute to execute according to comparison result The equalizing voltage control manipulation of second voltage numerical value is stated, until second electricity through the Bidirectional up-down volt circuit 110 output When pressing numerical value identical as the discharge target voltage value, the adjustment for stopping the equalizing voltage control manipulation changes, and maintains The current second voltage numerical value of output.
Wherein, if current second voltage numerical value is greater than the discharge target voltage value, the Bidirectional up-down piezoelectricity Road 110 can carry out decompression regulation to the second voltage numerical value, until the second voltage numerical value after regulation is equal to the mesh Mark discharge voltage numerical value;If current second voltage numerical value is less than the discharge target voltage value, the Bidirectional up-down pressure Circuit 110 can carry out boosting regulation to the second voltage numerical value, until the second voltage numerical value after regulation is equal to described Discharge target voltage value.In an embodiment of the present embodiment, the Bidirectional up-down volt circuit 110 passes through according to Voltage difference between discharge target voltage value and the second voltage numerical value carries out based on PI the second voltage numerical value The Voltage loop that (Proportion-Integral, proportional, integral) adjusts algorithm is adjusted and electric current loop is adjusted, so that final output The second voltage numerical value it is identical as the discharge target voltage value, wherein the Voltage loop adjustment process can be according to described Voltage difference between discharge target voltage value and the second voltage numerical value, and algorithm is adjusted to the electric current loop based on PI The corresponding target current value to be achieved of adjustment process output, and the electric current loop adjustment process will be according to the target current value And the current values currently substantially exported carry out PI adjusting, thus corresponding output numerical value institute identical with discharge target voltage value State second voltage numerical value.
In the present embodiment, when the battery cell 11 is in charged state, the control circuit 120 will be based on acquisition It includes the charging limitation voltage and first voltage numerical value that the first voltage numerical value and corresponding charging limitation voltage arrived, which generates, Charge buck signal, and the charging buck signal is sent to the Bidirectional up-down volt circuit 110, makes the two-way liter The first voltage numerical value is compared by reduction voltage circuit 110 with charging limitation voltage, to execute needle according to comparison result To the equalizing voltage control manipulation of the first voltage numerical value, until described the through the Bidirectional up-down volt circuit 110 output When one voltage value is identical as charging limitation voltage, the adjustment for stopping the equalizing voltage control manipulation changes, and maintains The current second voltage numerical value of output.
Wherein, if current first voltage numerical value is greater than the charging and limits voltage, the Bidirectional up-down volt circuit 110 Decompression regulation can be carried out to the first voltage numerical value, until the first voltage numerical value after regulation is limited equal to the charging Voltage;If current first voltage numerical value, which is less than the charging, limits voltage, the Bidirectional up-down volt circuit 110 can be to described First voltage numerical value carries out boosting regulation, until the first voltage numerical value after regulation is equal to the charging and limits voltage.? In an embodiment of the present embodiment, the Bidirectional up-down volt circuit 110 by according to the charging limit voltage with it is described Voltage difference between first voltage numerical value carries out the adjusting of the Voltage loop based on PI control algolithm and electricity to the first voltage numerical value It flows ring to adjust, so that the first voltage numerical value of final output is identical as charging limitation voltage, wherein the Voltage loop Adjustment process can be according to the voltage difference between the charging limitation voltage and the first voltage numerical value, and is adjusted and calculated based on PI The corresponding target current value to be achieved of the output of electric current loop adjustment process described in normal direction, and the electric current loop adjustment process is by basis The target current value and the current values currently substantially exported carry out PI adjusting, so that corresponding output numerical value and the charging limit The identical first voltage numerical value of voltage processed.
In the present embodiment, when the control circuit 120 receives the faults-tolerant control signal, the control circuit 120 are also used to when receiving the faults-tolerant control signal, generate fault-tolerant isolation signals according to the faults-tolerant control signal, and will The fault-tolerant isolation signals are sent to the Bidirectional up-down volt circuit 110, so that the Bidirectional up-down volt circuit 110 is to matched The battery cell 11 carries out fault-tolerant isolation.
In the present embodiment, the battery status regulation device 100 passes through above-mentioned Bidirectional up-down volt circuit 110, control electricity Mutual cooperation between road 120 and communicating circuit 130, the battery cell 11 of Corresponding matching charging process or discharged Cheng Zhong carries out the electric voltage equalization that equalization efficiency is high and energy loss is low to the battery cell 11 and manages, and can be directed to matched electricity Pond monomer 11 carries out fault-tolerant isolation, to extend battery system 10 by the cooperation between fault-tolerant isolation and electric voltage equalization control Steady operation duration and service life.
Referring once again to Fig. 2, in the embodiment of the present application, the Bidirectional up-down volt circuit 110 includes that Bidirectional up-down is voltage-controlled Coremaking piece 111 and bidirectional Buck-Boost converter 112.The signal receiving end A2C1 of the voltage-controlled coremaking piece 111 of Bidirectional up-down and institute The electric connection of control circuit 120 is stated, for receiving the buck signal, the charging buck letter that are transmitted by the control circuit 120 Number and fault-tolerant isolation signals in any one signal.The first voltage transmission end A1V1 of the bidirectional Buck-Boost converter 112 It is electrically connected with the battery cell 11, the second voltage transmission end A1V2 of the bidirectional Buck-Boost converter 112 and described outer Portion's electronic equipment 200 is electrically connected (including be directly connected to and be attached through other battery status regulation devices 100), described double To the regulating and controlling voltage end A2C2 of buck control chip 111 and the operation controlled end A1C electricity of the bidirectional Buck-Boost converter 112 Property connection, the external electrical is set according to the electric discharge buck signal for controlling the bidirectional Buck-Boost converter 112 The second voltage numerical value transmitted at standby 200 carries out buck regulation, or the control bidirectional Buck-Boost converter 112 according to The charging buck signal carries out buck regulation, or control to the first voltage numerical value transmitted at the battery cell 11 It makes the bidirectional Buck-Boost converter 112 and fault-tolerant isolation is carried out to the battery cell 11 according to the fault-tolerant isolation signals.
In an embodiment of the present embodiment, the voltage-controlled coremaking piece 111 of Bidirectional up-down is SC8802 chip, described Bidirectional Buck-Boost converter 112 includes multiple field-effect tube metal-oxide-semiconductors, and the bidirectional Buck-Boost converter 112 is multiple by adjusting The mode of duty ratio between the metal-oxide-semiconductor carries out boosting processing or decompression processing or fault-tolerant isolation.Wherein, multiple MOS Pipe can construct to form a full-bridge circuit in the bidirectional Buck-Boost converter 112, so that the bidirectional Buck-Boost converter 112 By way of adjusting the conducting dutycycle of each metal-oxide-semiconductor, to execute, above-mentioned Voltage loop adjusts operation and electric current loop is adjusted Operation, to complete boosting processing or decompression processing.The bidirectional Buck-Boost converter 112 can also be damaged in corresponding battery cell 11 Bad when, by way of controlling multiple respective on states of metal-oxide-semiconductor, to carry out fault-tolerant isolation to the battery cell 11, And it is filled using the bidirectional Buck-Boost converter 112 as the connection external electronic device 200 with the regulation of other battery status Set 100 conducting wire, it is ensured that the battery system 10 remains to carry out electric power signal transmission with the external electronic device 200.
In the embodiment of the present application, the control circuit 120 includes microcontroller 121.The first of the microcontroller 121 The voltage acquisition end BV1 and first voltage transmission end A1V1 is electrically connected, for acquiring transmission at the battery cell 11 The first voltage numerical value.The second voltage collection terminal BV2 of the microcontroller 121 and second voltage transmission end A1V2 electricity Property connection, for acquire at the external electronic device 200 transmit the second voltage numerical value.The microcontroller 121 Communication terminal BT and the communicating circuit 130 are electrically connected, for by the communicating circuit 130 and the main control device 300 into Row data interaction.The control terminal BC of the microcontroller 121 and the signal receiving end of the voltage-controlled coremaking piece 111 of the Bidirectional up-down A1C1 is electrically connected, for transmitting the electric discharge buck signal or the charging to the voltage-controlled coremaking piece 111 of the Bidirectional up-down Buck signal or the fault-tolerant isolation signals.
In an embodiment of the present embodiment, the microcontroller 121 is flying for model MC9S12XET256MAA Think karr single-chip microcontroller.
In the embodiment of the present application, the communicating circuit 130 includes CAN (Controller Area Network, control Device local area network) transceiver 131, two-way transient current suppressor 133 and common mode choke coil 132.The CAN transceiver 131 Inside connecting pin CT1 and the microcontroller 121 communication terminal BT be electrically connected, the external connection of the CAN transceiver 131 CT2 is held to be electrically connected through the common mode choke coil 132 with the main control device 300, the two-way transient current suppressor 133 It is connect with the common mode choke coil 132.Wherein, the communication terminal BT of the microcontroller 121 includes the letter sent for signal Number transmitting terminal and be used for signal received signal receiving end, the inside connecting pin CT1 of the CAN transceiver 131 include with it is described The inscribed end of signal sending end matched first, and end, the CAN transceiver is inscribed with the signal receiving end matched second 131 external connection terminal CT2 includes CAN transmitting terminal corresponding with the described first inscribed end, and with described second end to be inscribed corresponding The receiving end CAN.The common mode choke coil 132 include first end, second end, third end and the 4th end, the first end with The CAN transmitting terminal connection, the second end are connect with the receiving end CAN, and the third end connects the main control device 300 Signal receiving end, the 4th end connects the signal sending end of the main control device 300, the third end and the 4th end Respectively one two-way transient current suppressor 133 of connection, each two-way transient current suppressor 133 is grounded, with logical The cooperation for crossing the two-way transient current suppressor 133 and the common mode choke coil 132 improves the CAN transceiver 131 Electro Magnetic Compatibility.
In an embodiment of the present embodiment, the CAN transceiver 131 is ADM3053 transceiver, the common mode suppression Coil 132 processed is ZJYS81R5 coil, and the two-way transient current suppressor 133 is NUP2105L suppressor.
It referring to figure 3., is second of block diagram of battery status regulation device 100 provided by the embodiments of the present application. In the embodiment of the present application, the battery status regulation device 100 further includes power circuit 140, the power circuit 140 and institute The electric connection of control circuit 120 is stated, for providing electric energy to the control circuit 120.
In an embodiment of the present embodiment, the power circuit 140 may include a battery, the power supply electricity Road 140 is powered the control circuit 120 by the battery.
In the another embodiment of the present embodiment, the power circuit 140 includes DC/DC boost chip 141.It is described The voltage input end DV1 of DC/DC boost chip 141 and the battery cell 11 are electrically connected, the DC/DC boost chip 141 Voltage output end DV2 and the control circuit 120 be electrically connected, for by the first voltage numerical value at the battery cell 11 Boost conversion is the operating voltage of the control circuit 120, to provide electric energy to the control circuit 120.Wherein, the DC/ DC boost chip 141 can be the DC/DC chip of FP627.
It referring to figure 4., is the third block diagram of battery status regulation device 100 provided by the embodiments of the present application. In the embodiment of the present application, the battery status regulation device 100 can also include data storage circuitry 150.The data are deposited Storage road 150 includes nonvolatile memory, the data storage circuitry 150 and the microcontroller in the control circuit 120 121 are electrically connected, and the every terms of information for being got by the nonvolatile memory to the control circuit 120 is deposited Storage, wherein the every terms of information includes the first voltage numerical value and second voltage that the control circuit 120 gets each moment Numerical value, the electric discharge buck ratio got, and the electric discharge buck signal, charging buck signal and the fault-tolerant isolation letter that generate Number at least one of or multiple combinations.
In conclusion in battery status regulation device provided by the embodiments of the present application and battery system, the battery shape State regulation device can carry out equalization efficiency height to battery cell in the charging process of battery cell or discharge process and energy damages Low electric voltage equalization control is consumed, and fault-tolerant isolation can be carried out for matched battery cell, to improve the stabilization work of battery system Make duration and service life.The battery status regulation device is applied to the battery system including multiple groups battery cell, every group of electricity Pond monomer corresponds to a battery status regulation device, and battery cell described in multiple groups passes through corresponding battery status Regulation device is cascaded.The battery status regulation device includes Bidirectional up-down volt circuit, control circuit and communicating circuit. The Bidirectional up-down volt circuit and the battery cell and external electronic device are electrically connected, and make the battery cell through described double Electric power signal is transmitted to step-up/step-down circuit and the external electronic device.The control circuit respectively with the battery cell and institute External electronic device electric connection is stated, for acquiring the first voltage numerical value and the external electrical that transmit at the battery cell The second voltage numerical value transmitted at sub- equipment.The control circuit and the communicating circuit are electrically connected, for by described logical The collected first voltage numerical value is sent to main control device by news circuit, and is received by the main control device in the battery According to the electric discharge buck ratio of the corresponding first voltage numeric feedback of multiple groups battery cell when monomer is in discharge condition, or Receive the faults-tolerant control signal fed back by the main control device.The control circuit electrically connects with the Bidirectional up-down volt circuit It connects, for generating electric discharge buck signal or charging buck signal, and the buck signal of generation is sent to described Bidirectional up-down volt circuit makes the Bidirectional up-down volt circuit according to the buck signal, to the battery cell with it is described The electric power signal transmitted between external electronic device carries out the processing of isostatic uplift and depression pressure, thus battery cell charging process or put In electric process, the electric voltage equalization that equalization efficiency is high and energy loss is low is carried out to battery cell and is managed.And the control is electric simultaneously Road is also used to when receiving the faults-tolerant control signal, generates fault-tolerant isolation signals according to the faults-tolerant control signal, and will The fault-tolerant isolation signals are sent to the Bidirectional up-down volt circuit, make the Bidirectional up-down volt circuit to the matched battery Monomer carries out fault-tolerant isolation, to extend the stabilization of battery system by the cooperation between fault-tolerant isolation and electric voltage equalization control Operating time and service life.
Wherein, the electric discharge buck signal by the control circuit when the battery cell is in discharge condition according to The when collected second voltage numerical generation of the electric discharge buck got, the charging buck signal is by the control Circuit processed is when the external electronic device charges to battery cell transmission electric power signal, that is, battery cell, according to the electricity The charging limitation voltage of pond monomer and the collected first voltage numerical generation.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.

Claims (10)

1. a kind of battery status regulation device, which is characterized in that applied to the battery system including multiple groups battery cell, every group of electricity Pond monomer corresponds to a battery status regulation device, and battery cell described in multiple groups passes through corresponding battery status Regulation device is cascaded, and the battery status regulation device includes Bidirectional up-down volt circuit, control circuit and communicating circuit;
The Bidirectional up-down volt circuit and the battery cell and external electronic device are electrically connected, and make the battery cell through institute It states Bidirectional up-down volt circuit and the external electronic device transmits electric power signal;
The control circuit is electrically connected with the battery cell and the external electronic device respectively, for acquiring the battery The second voltage numerical value transmitted at the first voltage numerical value transmitted at monomer and the external electronic device;
The control circuit and the communicating circuit are electrically connected, for passing through the communicating circuit for collected described first Voltage value is sent to main control device, and receives by the main control device when the battery cell is in discharge condition according to more The electric discharge buck ratio of the group corresponding first voltage numeric feedback of battery cell, or receive and fed back by the main control device Faults-tolerant control signal;
The control circuit and the Bidirectional up-down volt circuit are electrically connected, for generating electric discharge buck signal or charging lifting Press signal, and the buck signal of generation be sent to the Bidirectional up-down volt circuit, make the Bidirectional up-down volt circuit according to The buck signal, liter balanced to the electric power signal progress transmitted between the battery cell and the external electronic device Decompression processing, wherein the electric discharge buck signal by the control circuit when the battery cell is in discharge condition according to The when collected second voltage numerical generation of the electric discharge buck got, the charging buck signal is by the control Circuit processed limits voltage and collected institute according to the charging of the battery cell when the battery cell is in charged state State first voltage numerical generation;
The control circuit is also used to when receiving the faults-tolerant control signal, is generated according to the faults-tolerant control signal fault-tolerant Isolation signals, and the fault-tolerant isolation signals are sent to the Bidirectional up-down volt circuit, so that the Bidirectional up-down volt circuit Fault-tolerant isolation is carried out to the matched battery cell.
2. battery status regulation device according to claim 1, which is characterized in that the Bidirectional up-down volt circuit includes double Chip and bidirectional Buck-Boost converter are controlled to buck;
The signal receiving end of the voltage-controlled coremaking piece of Bidirectional up-down and the control circuit are electrically connected, for receiving by the control Any one signal in the electric discharge buck signal of circuit transmission processed, charge buck signal and fault-tolerant isolation signals;
The first voltage transmission end of the bidirectional Buck-Boost converter and the battery cell are electrically connected, the Bidirectional up-down pressure The second voltage transmission end and the external electronic device of converter are electrically connected, the voltage of the voltage-controlled coremaking piece of Bidirectional up-down The operation controlled end for regulating and controlling end and the bidirectional Buck-Boost converter is electrically connected, for controlling the bidirectional Buck-Boost converter Buck tune is carried out to the second voltage numerical value transmitted at the external electronic device according to the electric discharge buck signal Control, or the bidirectional Buck-Boost converter is controlled according to the charging buck signal to described in transmission at the battery cell First voltage numerical value carries out buck regulation, or controls the bidirectional Buck-Boost converter according to the fault-tolerant isolation signals to institute It states battery cell and carries out fault-tolerant isolation.
3. battery status regulation device according to claim 2, which is characterized in that the voltage-controlled coremaking piece of Bidirectional up-down is SC8802 chip, the bidirectional Buck-Boost converter include multiple field-effect tube metal-oxide-semiconductors, and the bidirectional Buck-Boost converter passes through The mode for adjusting the duty ratio between multiple metal-oxide-semiconductors carries out boosting processing or decompression processing or fault-tolerant isolation.
4. battery status regulation device according to claim 2, which is characterized in that the control circuit includes microcontroller Device;
The first voltage collection terminal of the microcontroller and the first voltage transmission end are electrically connected, for acquiring the battery The first voltage numerical value transmitted at monomer;
The second voltage collection terminal of the microcontroller and the second voltage transmission end are electrically connected, for acquiring the outside The second voltage numerical value transmitted at electronic equipment;
The communication terminal of the microcontroller and the communicating circuit are electrically connected, for passing through the communicating circuit and the master control Equipment carries out data interaction;
The signal receiving end of the control terminal of the microcontroller and the voltage-controlled coremaking piece of the Bidirectional up-down is electrically connected, and is used for institute It states the voltage-controlled coremaking piece of Bidirectional up-down and transmits the electric discharge buck signal or the charging buck signal or the fault-tolerant isolation Signal.
5. battery status regulation device according to claim 4, which is characterized in that the communicating circuit includes control general ability Domain network C AN transceiver, two-way transient current suppressor and common mode choke coil;
The inside connecting pin of the CAN transceiver and the communication terminal of the microcontroller are electrically connected, outside the CAN transceiver Portion connecting pin is electrically connected through the common mode choke coil and the main control device, the two-way transient current suppressor with it is described Common mode choke coil connection.
6. battery status regulation device according to claim 5, which is characterized in that the CAN transceiver is ADM3053 receipts Device is sent out, the common mode choke coil is ZJYS81R5 coil, and the two-way transient current suppressor is NUP2105L suppressor.
7. battery status regulation device described in any one of -6 according to claim 1, which is characterized in that described device is also wrapped Include power circuit;
The power circuit and the control circuit are electrically connected, for providing electric energy to the control circuit.
8. battery status regulation device according to claim 7, which is characterized in that the power circuit includes DC/DC liter Press chip;
The voltage input end and the battery cell of the DC/DC boost chip are electrically connected, the electricity of the DC/DC boost chip Output end and the control circuit is pressed to be electrically connected, for being institute by the first voltage numerical value boost conversion at the battery cell State the operating voltage of control circuit.
9. battery status regulation device according to claim 7, which is characterized in that the battery status regulation device also wraps Data storage circuitry is included, the data storage circuitry includes nonvolatile memory, and the data storage circuitry passes through described non- The every terms of information that volatile memory gets the control circuit stores.
10. a kind of battery system, which is characterized in that the system comprises appoint in multiple groups battery cell and multiple claim 1-9 Battery status regulation device described in meaning one, the corresponding battery status regulation device of battery cell described in every group, often The group battery cell is connect through the corresponding battery status regulation device with external electronic device, wherein battery described in multiple groups Monomer is cascaded by corresponding battery status regulation device.
CN201920024394.2U 2019-01-07 2019-01-07 Battery status regulation device and battery system Active CN209344827U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920024394.2U CN209344827U (en) 2019-01-07 2019-01-07 Battery status regulation device and battery system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920024394.2U CN209344827U (en) 2019-01-07 2019-01-07 Battery status regulation device and battery system

Publications (1)

Publication Number Publication Date
CN209344827U true CN209344827U (en) 2019-09-03

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Family Applications (1)

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