CN209046278U - Charging control circuit of the low-tension supply based on battery pack H bridge cascaded structure to high-tension battery group - Google Patents
Charging control circuit of the low-tension supply based on battery pack H bridge cascaded structure to high-tension battery group Download PDFInfo
- Publication number
- CN209046278U CN209046278U CN201820784750.6U CN201820784750U CN209046278U CN 209046278 U CN209046278 U CN 209046278U CN 201820784750 U CN201820784750 U CN 201820784750U CN 209046278 U CN209046278 U CN 209046278U
- Authority
- CN
- China
- Prior art keywords
- battery
- charging
- unit
- switch element
- single battery
- 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.)
- Expired - Fee Related
Links
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a kind of low-tension supply based on battery pack H bridge cascaded structure to the charging control circuit of high-tension battery group, change existing directly by single battery (or single battery group) tandem compound at battery pack, but on-off control is carried out by the H-bridge circuit that field-effect tube, relay or other switching devices are built, H bridge output end connects battery pack series bus.Single battery (or single battery group) is sealed in into bus by H-bridge circuit, battery voltage is obtained by bus.Can also be by H-bridge circuit by bus short join, this grade of single battery (or single battery group) then bypasses out tandem compound.
Description
Technical field
The utility model relates to field of batteries.
Background technique
New energy technology is fast-developing, especially lithium battery the fields such as standby energy storage and electric car extensive use,
Requirements at the higher level are proposed to crucial battery energy storage and battery management technique, need to be promoted validity and equilibrium to battery pack charging
Ability performs to the energy storage characteristic of battery pack most preferably.The especially use of high-tension battery group needs effectively to solve high voltage to fill
The using security issues of electricity.The hardware cost for needing to reduce high-voltage charging equipment simultaneously, enables new energy battery technology to obtain
Wider promotion and application.
Battery pack packet technology has high requirement to the consistency of single battery, otherwise because of the serious shadow of battery consistency problem
Ring the performance of battery pack overall performance.But it is limited by battery technology, needs to solve battery one by better battery management technique
Cause property problem reduces battery pack packet to the coherence request of single battery.
There is the problems such as low efficiency, practical application effect is undesirable in current passive balanced and active equalization technology.It is special
It is not active equalization technology, including capacitor degree of flying method, voltage transformation approach, circuit is extremely complex, hardware volume is big, application cost is high
The defects of.It needs better battery management technique and promotes application level.
The performance of entire battery pack is limited by single battery failure or the influence of quality problems.Need better cell tube
The reliability and safety of reason technology raising battery applications.
Utility model content
Technical problem to be solved in the utility model is to realize that one kind based on battery pack H bridge cascaded structure, has battery
The low-tension supply of protection and active equalization function is to high-tension battery group charging control circuit.
To achieve the goals above, the technical solution adopted in the utility model are as follows: based on the low of battery pack H bridge cascaded structure
Voltage source is made of the charging control circuit of high-tension battery group, battery pack the battery unit being serially connected, each battery unit
Equipped with a H axle assemble, the H axle assemble is by first switching element, second switch element, third switch element and the 4th switch
Element successively joins end to end composition, and the anode of the battery unit is linked between second switch element and the 4th switch element,
The cathode of the battery unit is linked between first switching element and third switch element, the third switch element and the 4th
First electrode and other battery cells in series of the extracting power supply cord as the battery unit, the first switch between switch element
Second electrode and other battery cells in series of the extracting power supply cord as the battery unit between element and second switch element, often
The first electrode of a battery unit is connect with the second electrode of another battery unit, wherein being located at the of the battery unit of head end
One electrode connects the first charging interface of battery pack, and second positioned at the second electrode connection battery pack of the battery unit of end is filled
Electrical interface, first charging interface and the second charging interface connect charging equipment, and the charging control circuit is equipped with cell tube
Unit is managed, each battery unit is equipped with voltage acquisition unit, and the output end of the charging equipment is acquired equipped with charging voltage
Unit, the voltage acquisition unit and charging voltage acquisition unit output voltage signal to battery management unit, the battery
Administrative unit outputs control signals to each switch element.
The positive and negative anodes status signal of charging voltage acquisition unit first charging interface of output and the second charging interface is extremely
Battery management unit.
The conducting wire that the battery unit is connect with charging interface is equipped with charge switch, and the battery management unit output is logical
Break signal is to charge switch.
Control method based on the charging control circuit:
When starting to charge, the output voltage of charging equipment is obtained；
It alarms if output voltage values are greater than the safety value upper limit, if between the safety value upper limit and safety value lower limit,
Start to charge for all batteries unit, charge in batches for battery unit if being lower than safety value lower limit (low voltage condition).Peace
Total head is manually set in advance.
If being lower than safety value lower limit, table is prestored according to the comparison of the output voltage of current charging equipment, obtains every batch of
The battery unit quantity for participating in charging, in charging process, if current some or the multiple battery unit electricity for participating in charging fills
It is full, then the switch element for filling with the battery unit of electricity is disconnected, and not yet fully charged battery unit is added and participates in charging, made
The current battery unit quantity for participating in charging is identical as the numerical value for acquisition of tabling look-up, until all battery units are each filled with electricity.
When starting to charge, the positive and negative anodes of the first charging interface and the second charging interface input current are judged；
If the first charging connection is positive, the second charging interface connects cathode, then the battery unit that control is currently charged
First switching element and the 4th switch element closure, second switch element and third switch element disconnect；
If the first charging connection cathode, the second charging interface connection anode, then the battery unit that control is currently charged
First switching element and the 4th switch element disconnect, second switch element and third switch element closure.
Before starting to charge, charge switch is normally opened, when sensing that charging equipment starts out-put supply and executed each battery
After the switch element on-off task of unit, it is closed charge switch, when sensing that charging equipment stops out-put supply or each electricity
After pool unit fills with electricity, it is normally opened to restore charge switch.
Utility model has the advantages that
1, charging process is according to several single batteries of any dynamic select of voltage value (or single battery group) of low-tension supply
Tandem compound is added, the series voltage of battery pack controlled can adjust, and realize that low-tension supply charges to high-tension battery group.
2, tandem compound can be added in single battery (or single battery group), tandem compound can also be bypassed out completely.It can be with
Charging current is controlled with or without any single battery (or single battery group), that is, can reach euqalizing current and be equal to charging electricity
The high efficiency of stream is balanced.
3, tandem compound can be reversely added in single battery (or single battery group), does electric discharge connection, carries out more efficient
Active equalization.
4, each single battery in battery pack (or single battery group) can reach fully charged, make the storage of battery pack
Energy characteristic performs to most preferably, and independent of the coherence request to single battery.
5, each single battery (or single battery group) is used only what field-effect tube, relay or other switching devices were built
H-bridge circuit is controlled as turn-on and turn-off, be can be realized and is sealed in or Bypass Control, and simple circuit, control is simple, low in cost.
6, the positive and negative electrode direction of the conducting bridge arm adaptive charger of control H bridge can be passed through.
7, failure or quality problems especially are occurred to single battery (or single battery group), can bypassed completely in tandem compound
Outside, the reliability and safety of battery pack application are provided.
Detailed description of the invention
The content of width attached drawing every in the utility model specification expression is briefly described below:
Fig. 1 is the battery pack charging control circuit schematic diagram based on H bridge cascaded structure；
Charging control circuit schematic diagram when Fig. 2,3 are normal voltage；
Charging control circuit schematic diagram when Fig. 4 is brownout.
Specific embodiment
Low-tension supply based on battery pack H bridge cascaded structure is a kind of battery pack to the charging control circuit of high-tension battery group
H bridge cascaded structure has the low-tension supply of battery protection and active equalization function to high-tension battery group charging control circuit.The electricity
Road is designed compatible charging voltage and is connected forward or backwards, can be according to several monomers of any dynamic select of voltage value of low-tension supply
Charge circuit is added in battery (or single battery group) series connection, realizes that low-tension supply charges to high-tension battery group.To not being added
The single battery (or single battery group) of series bus is, it can be achieved that active equalization ability identical with charging current.Pass through
Dynamic controls, and each single battery (or single battery group) in battery pack can reach fully charged.
As shown in Figure 1, each single battery (or single battery group) in battery pack by field-effect tube, relay or its
The H-bridge circuit that its switching device is built carries out on-off control, and H bridge output end connects battery pack series bus.It will by H-bridge circuit
Single battery (or single battery group) seals in bus, or single battery (or single battery group) is bypassed out tandem compound.
Single battery (or single battery group) connects battery pack series bus, Sx_4, Sx_1 switch by H bridge output end
The output of cell voltage forward direction is realized in conducting, and Sx_2, Sx_3 switch conduction realize that cell voltage reversely exports, this grade of single battery
(or single battery group) seals in bus, passes through bus current.Sx_2, Sx_4 switch conduction or Sx_1, Sx_3 switch conduction, then
It is shorted series bus, this grade of single battery (or single battery group) bypasses out tandem compound, do not pass through bus current.
Specifically, directly series connection does not form battery pack to single battery (or single battery group) positive and negative electrode, but passes through field
The H-bridge circuit that effect pipe, relay or other switching devices are built carries out on-off control, and H bridge output end connects battery pack series connection
Bus.By controlling the conducting connection of H-bridge circuit, this grade of single battery (or single battery group) can seal in mother forward or backwards
Line.
Single battery (or single battery group) can be by field-effect tube, relay or other switching devices are built H bridge electricity
Road carries out on-off control, and H bridge output end connects battery pack series bus.By controlling H-bridge circuit for bus short join, this grade of monomer
Battery (or single battery group) then bypasses out tandem compound.
Charging process is logical according to several single batteries of any dynamic select of voltage value (or single battery group) of low-tension supply
It crosses H-bridge circuit and forward seals in bus progress charging connection, realize that low-tension supply charges to high-tension battery group.Other monomers
Battery (or single battery group) can be by H-bridge circuit by this grade of bus short join, this grade of cell bypass goes out tandem compound, obstructed to overcharge
Electric current.The higher single battery of voltage (or single battery group) can also reversely be sealed in bus by H-bridge circuit and carry out electric discharge company
It connects, more efficient carry out active equalization.
Charging process is according to the voltage and status information of each single battery (or single battery group), and real-time control adjustment is respectively
The H bridge connection status of a single battery (or single battery group) realizes charge protection and active equalization.It is controlled by dynamic, electricity
Each single battery (or single battery group) of Chi Zuzhong can reach fully charged.
Charging process is equal to charging current to the euqalizing current of each single battery (or single battery group).Can also pass through by
Single battery (or single battery group) does electric discharge connection, more efficient carry out active equalization.
Battery pack packet technology and charge control mechanism based on the circuit structure.
By the utility model technology, the charging voltage to high-tension battery group can be reduced, reaches better voltage security mark
It is quasi-.By reducing the output voltage of charger, the use environment of charger is safer, and design complexities and hardware cost are substantially
It reduces.
By the utility model technology, requirement of the battery pack packet to single battery consistency can be substantially reduced.
By the utility model technology, charger can be realized to each single battery (or single battery group) in battery pack
Shield and active equalization.Each single battery (or single battery group) can reach fully charged.
By the utility model technology, the single battery (or single battery group) that problem can will be present thoroughly excludes connecting
Combination is outer, and the use of battery pack will not be influenced because of the damage of individual monomers battery (or single battery group), greatly improves system
Safety and reliability.
As shown in Figure 2,3, normal high-voltage charging control logic:
According to the positive and negative electrode direction of charger, suitable bridge arm can be connected and carry out charging connection.
The anode of Sx_4, Sx_1 switch conduction, all single batteries (or single battery group) accesses series connection mother by Sx_4
Line, cathode access series bus by Sx_1.Charging current is by all battery units in battery pack.
The anode of Sx_2, Sx_3 switch conduction, all single batteries (or single battery group) accesses series connection mother by Sx_2
Line, cathode access series bus by Sx_3.Charging current is by all battery units in battery pack.
As shown in figure 4, low pressure charging control logic:
According to the voltage value of charge power supply, in conjunction with the status information of single battery (or single battery group).Pass through H bridge control
System selects several groups single battery (or single battery group) that tandem compound is added, and meets the voltage requirement of charging voltage, realizes low
Pressure charging.Other battery units are shorted series bus by H-bridge circuit, bypass out tandem compound, obstructed overcharge current.
Charging process, according to the voltage and status information of each single battery (or single battery group), adjustment is different in real time
The single battery (or single battery group) of position is added serial connection charge, and the final each single battery realized in battery pack is (or single
Body battery pack) it can reach fully charged.
The utility model is exemplarily described above in conjunction with attached drawing, it is clear that the utility model specific implementation not by
The limitation of aforesaid way, as long as the various unsubstantialities carried out using the method concept and technical solution of the utility model change
Into, or it is not improved the conception and technical scheme of the utility model are directly applied into other occasions, in the utility model
Protection scope within.
Claims (3)
1. the low-tension supply based on battery pack H bridge cascaded structure is to the charging control circuit of high-tension battery group, battery pack is by mutual
Concatenated battery unit is constituted, it is characterised in that: each battery unit is equipped with a H axle assemble, and the H axle assemble is opened by first
Close element, second switch element, third switch element and the 4th switch element successively join end to end composition, the battery unit
Anode is linked between second switch element and the 4th switch element, and the cathode of the battery unit is linked into first switching element
Between third switch element, extracting power supply cord is as the battery unit between the third switch element and the 4th switch element
First electrode and other battery cells in series, extracting power supply cord conduct between the first switching element and second switch element
The second electrode of the battery unit and other battery cells in series, the first electrode of each battery unit and another battery unit
Second electrode connection, wherein be located at head end battery unit first electrode connection battery pack the first charging interface, be located at
Second charging interface of the second electrode connection battery pack of the battery unit of end, first charging interface and the second charging
Mouth connection charging equipment, the charging control circuit are equipped with battery management unit, and each battery unit is equipped with voltage acquisition
Unit, the output end of the charging equipment are equipped with charging voltage acquisition unit, the voltage acquisition unit and charging voltage acquisition
Unit outputs voltage signal to battery management unit, and the battery management unit outputs control signals to each switch element.
2. charging control circuit according to claim 1, it is characterised in that: the charging voltage acquisition unit output first
The positive and negative anodes status signal of charging interface and the second charging interface is to battery management unit.
3. charging control circuit according to claim 1 or 2, it is characterised in that: the battery unit and charging interface connect
The conducting wire connect is equipped with charge switch, and the battery management unit exports on-off signal to charge switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820784750.6U CN209046278U (en) | 2018-05-24 | 2018-05-24 | Charging control circuit of the low-tension supply based on battery pack H bridge cascaded structure to high-tension battery group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820784750.6U CN209046278U (en) | 2018-05-24 | 2018-05-24 | Charging control circuit of the low-tension supply based on battery pack H bridge cascaded structure to high-tension battery group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209046278U true CN209046278U (en) | 2019-06-28 |
Family
ID=67028518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820784750.6U Expired - Fee Related CN209046278U (en) | 2018-05-24 | 2018-05-24 | Charging control circuit of the low-tension supply based on battery pack H bridge cascaded structure to high-tension battery group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209046278U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108599313A (en) * | 2018-05-24 | 2018-09-28 | 李勇 | Charging control circuit and its control method of the low-tension supply based on battery pack H bridge cascaded structures to high-tension battery group |
-
2018
- 2018-05-24 CN CN201820784750.6U patent/CN209046278U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108599313A (en) * | 2018-05-24 | 2018-09-28 | 李勇 | Charging control circuit and its control method of the low-tension supply based on battery pack H bridge cascaded structures to high-tension battery group |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108736544A (en) | The adjustable charge/discharge control circuit of output voltage and its control method based on adjustable battery pack cascaded structure | |
| CN208142855U (en) | A kind of battery management system and battery pack | |
| CN108899942A (en) | The adjustable charge/discharge control circuit of output voltage and its control method based on battery pack H bridge cascaded structure | |
| CN204046213U (en) | A kind of discharge and recharge is with mouth control circuit | |
| CN204334058U (en) | A kind of balancer of serial lithium battery group | |
| CN110224184A (en) | Power battery, electric car and the control method to charge to the power battery | |
| CN103501036B (en) | A kind of charging and discharging lithium battery pilot circuit | |
| CN108501724A (en) | A kind of new energy auto high-voltage electrical box | |
| CN209046278U (en) | Charging control circuit of the low-tension supply based on battery pack H bridge cascaded structure to high-tension battery group | |
| CN208596953U (en) | Three-phase motor inversion drive control circuit based on battery pack H bridge cascaded structure | |
| CN208479213U (en) | Low-tension supply based on adjustable battery pack cascaded structure is to high-tension battery group charging control circuit | |
| CN108599323A (en) | A kind of batter-charghing system and its control method with subregion charging cooling function | |
| CN108649646A (en) | Charging control circuit and its control method based on adjustable battery pack cascaded structure | |
| CN208479208U (en) | Battery pack charging control circuit based on H bridge cascaded structure | |
| CN108899943A (en) | Three-phase motor inversion drive control circuit and its control method based on battery pack H bridge cascaded structure | |
| CN208820515U (en) | Spare gridding battery pack after a kind of | |
| CN108808819B (en) | Lithium electricity energy storage and power preparation system | |
| CN208479209U (en) | The adjustable charge/discharge control circuit of output voltage based on battery pack H bridge cascaded structure | |
| CN208623347U (en) | Charging control circuit based on adjustable battery pack cascaded structure | |
| CN208479210U (en) | Three-phase inversion charge/discharge control circuit based on battery pack H bridge cascaded structure | |
| CN108649648A (en) | Low-tension supply based on adjustable battery pack cascaded structure is to high-tension battery group charging control circuit and its control method | |
| CN208479214U (en) | The adjustable charge/discharge control circuit of output voltage based on adjustable battery pack cascaded structure | |
| CN209046277U (en) | Single-phase inversion charge/discharge control circuit based on battery pack H bridge cascaded structure | |
| CN206461398U (en) | A kind of special type three-state switch in battery anode end | |
| CN108683225A (en) | Battery pack charging control circuit based on H bridge cascaded structures and its control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190628 Termination date: 20200524 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |