CN208638071U - A kind of two-way active equalization management system of usable Switching Power Supply power supply - Google Patents
A kind of two-way active equalization management system of usable Switching Power Supply power supply Download PDFInfo
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- CN208638071U CN208638071U CN201821455277.3U CN201821455277U CN208638071U CN 208638071 U CN208638071 U CN 208638071U CN 201821455277 U CN201821455277 U CN 201821455277U CN 208638071 U CN208638071 U CN 208638071U
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Abstract
The utility model relates to arrive electric car charge and discharge electro-technical field, a kind of two-way active equalization management system of usable Switching Power Supply power supply, including direct-current switch power supply circuit, balanced gating circuit and balancing disk；The balancing disk includes the primary side route being connected with direct-current switch power supply circuit, and the secondary sideline road being connected with balanced gating circuit；Supply voltage monitoring unit and Balance route unit are also connected on the direct-current switch power supply circuit；The supply voltage monitoring unit, when there is power supply overpressure situation, can export enabled for monitoring to balancing disk supply voltage to Balance route unit；The Balance route unit can control the primary side route and secondary side circuit on-off and current direction of balancing disk.The two-way active equalization management system of Switching Power Supply power supply that can be used can automatically control single battery (lithium battery) quantity of balancing disk charge and discharge direction and access according to preset condition and monitoring feedback condition, system for this, and maintenance module works normally.
Description
Technical field
It powers the utility model relates to electric car charge and discharge electro-technical field more particularly to a kind of usable Switching Power Supply
Two-way active equalization management system.
Background technique
Lithium ion battery has the characteristics such as high-energy density, high internal resistance, high voltage, high circulation number and low self-discharge rate,
But its requirement to protection circuit is very high, crossing charge and discharge can all cause the decline of battery life to even result in cell damage, hair
It makes trouble former.Currently, lithium ion battery is widely used on electric car, consistency of battery pack how is ensured, extending battery makes
The problem of with the service life and enabling electric vehicle safer, be urgent need to resolve.
Current major part BMS is all made of balancing technique to ensure that the consistency of Li-ion batteries piles, small part have higher
The two-way active equalization technology of effect, theory is shifted to lithium ion battery energy.Since number of batteries is many in battery pack
More and hardware cost considers that carrying out energy transfer using energy storage device is the most common technology；In general energy storage scene and spy
Under different vehicle application scene or in the case that electric car startup power supply is damaged, no energy storage device carries out energy transfer, only with
Switching Power Supply power supply.Switching Power Supply characteristic is exactly that only can unidirectionally export energy (electric current) device, can not inwardly absorb energy,
When carrying out active equalization power supply, it can only charge to single battery in active equalization, but in equilibrium to module for power supply
The electricity that single battery is released, which will lead to, generates reverse current on Switching Power Supply current supply circuit, since Switching Power Supply can not absorb,
Arriving causes supply voltage to be constantly elevated, and finally results in Switching Power Supply and module and is protected or burnt out.
Summary of the invention
To solve the above-mentioned problems, the purpose of this utility model is to provide a kind of the two-way of usable Switching Power Supply power supply
Active equalization management system, this can be used the two-way active equalization management system of Switching Power Supply power supply that Switching Power Supply can be used to supply
Electricity, and the monomer of balancing disk charge and discharge direction and access can be automatically controlled according to preset condition and monitoring feedback condition, system
Battery (lithium battery) quantity, so that single battery balanced discharge be avoided to cause what Switching Power Supply and module protected or burnt out to ask
Topic, maintenance module work normally.
In order to achieve the above purpose, the utility model uses technical solution below:
A kind of two-way active equalization management system of usable Switching Power Supply power supply, including direct-current switch power supply circuit,
Weigh gating circuit and balancing disk；The balancing disk includes the primary side route being connected with direct-current switch power supply circuit, and with it is balanced
The connected secondary sideline road of gating circuit, primary side route and secondary sideline road induction line each other；It is characterized by: the direct current is opened
Supply voltage monitoring unit and Balance route unit are also connected in powered-down source circuit；The supply voltage monitoring unit, is used for
Balancing disk supply voltage is monitored, when there is power supply overpressure situation, can be exported to Balance route unit enabled；The equilibrium
The primary side route of plate is equipped with primary side metal-oxide-semiconductor, and the secondary sideline road of balancing disk is equipped with secondary side metal-oxide-semiconductor, primary side metal-oxide-semiconductor and secondary side
MOS pipe can be converted between direct current and alternating current；The balanced gating circuit includes a plurality of parallel branch, and every simultaneously
Connection branch road is respectively connected with single battery and gating metal-oxide-semiconductor；The Balance route unit control primary side metal-oxide-semiconductor and secondary side metal-oxide-semiconductor
Switching frequency, and gating metal-oxide-semiconductor switch；The Balance route unit can control the primary side route and pair of balancing disk
Side circuit on-off and current direction；In the balanced circuit of Balance route building unit, the single battery in discharge condition it is equal
The electric current total amount that weighs need to be less than or equal to the euqalizing current total amount of the single battery in charged state.It should be understood that herein
Induction line can exist signified primary side route and secondary sideline road when referring to that primary side route or secondary sideline road generate alternating current each other
Induced current is generated on other side's circuit, actually can be regarded as transformer.
Preferably, the balancing disk is equipped with multiple groups, the primary side lines in parallel of multiple groups balancing disk is in direct-current switch power supply electricity
On the road, and be equipped with multiple groups equilibrium gating circuit respectively with the secondary side connection of multiple groups balancing disk.
Preferably, the secondary sideline road of the balancing disk is additionally provided with euqalizing current acquisition functional module；The balanced electricity
Stream acquisition functional module acquires active equalization electric current in real time, and in overcurrent, enabled to the output of Balance route unit.
Preferably, the equilibrium gating circuit is equipped with voltage acquisition module, the voltage acquisition module is for acquiring
Monomer battery voltage, and it is fed back to Balance route unit.
By adopting the above technical scheme, which is related to a kind of the two-way of usable Switching Power Supply power supply to the utility model
Active equalization management system, it is single that the supply voltage in the two-way active equalization management system of Switching Power Supply power supply can be used to monitor for this
Member for balancing disk supply voltage monitor, Balance route unit then can be used for controlling switching single balancing disk charge and discharge direction and
Control gating metal-oxide-semiconductor opens and closes；Therefore it is using the two-way active equalization management system that Switching Power Supply can be used to power
The single battery of balancing disk charge and discharge direction and access can be automatically controlled according to preset condition and monitoring feedback condition, system
(lithium battery) quantity, to can avoid excess energy input switch power supply in balancing procedure, can avoid Switching Power Supply and can be used
The problem of two-way active equalization management system internal module of Switching Power Supply power supply is protected or burnt out, guarantees system worked well.
Detailed description of the invention
Fig. 1 is that the two-way active equalization management system of Switching Power Supply power supply can be used to be in two batteries balanced discharge states
Schematic diagram.
Fig. 2 is that the two-way active equalization management system of Switching Power Supply power supply can be used to be in a section equalizaing charge, and a section is equal
Weigh discharge condition schematic diagram.
Specific embodiment
With reference to the accompanying drawing, the preferred embodiment of the utility model is described in further detail.
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
A kind of two-way active equalization management system of usable Switching Power Supply power supply as shown in Fig. 1~2, including direct current are opened
Powered-down source circuit a, equilibrium gating circuit b and balancing disk.The balancing disk includes the primary side being connected with direct-current switch power supply circuit a
Route c, and secondary sideline road d, primary side route c and pair sideline road the d induction line each other being connected with balanced gating circuit b,
The gating circuit b that weighs is equipped with single battery.It should be understood that signified primary side route c and pair sideline road d incudes each other herein
Route when referring to that primary side route c or pair sideline road d generates alternating current, can generate induced current on other side's circuit, can actually manage
Solution is transformer 1.In a kind of wherein embodiment, the balancing disk is equipped with multiple groups, and the primary side route c of multiple groups balancing disk is in parallel
On direct-current switch power supply circuit a, and it is equipped with multiple groups equilibrium gating circuit b and is connect respectively with the secondary sideline road d of multiple groups balancing disk.
On the direct-current switch power supply circuit a other than being equipped with Switching Power Supply 8, it is single to be also connected with supply voltage monitoring
Member 6 and Balance route unit 7.The supply voltage monitoring unit 6, for being monitored to balancing disk supply voltage, when powering
When overpressure situation, it can be exported to Balance route unit 7 enabled.The Balance route unit 7, can control the primary side of balancing disk
Route c and secondary sideline road d on-off and current direction.Specifically, the primary side route c of the balancing disk is equipped with primary side MOS
Pipe 2, the secondary sideline road d of balancing disk is equipped with secondary side metal-oxide-semiconductor 3 and euqalizing current acquires functional module 9.The balanced gating electricity
Road b is equipped with voltage acquisition module 10, and voltage acquisition module 10 is used to acquire 4 voltage of single battery in same parallel branch,
And it is fed back to Balance route unit 7.In further preferred embodiment, every group of balanced gating circuit b may include a plurality of
Parallel branch is equipped with single battery 4 and gating metal-oxide-semiconductor 5 in every parallel branch.Balance route unit 7 controls primary side metal-oxide-semiconductor
2 and secondary side metal-oxide-semiconductor 3 switching frequency, power supply and single battery 4 in above scheme are all DC voltages, this is actively equal
Weighing apparatus design is that electricity transfer exchange is carried out by transformer 1, and primary side metal-oxide-semiconductor 2 and secondary side metal-oxide-semiconductor 3 are main there are two function, the
One: direct current being changed into alternating current, magnetic field conversion variation is provided and carries out electricity transfer.Second: by controlling primary side MOS pipe 2
It is different with secondary 3 switching frequency of side metal-oxide-semiconductor, 4 equalizaing charge of single battery, course of discharge control are carried out, it can be achieved that equilibrium is safe certainly
Dynamic switching and shutdown.The control of the Balance route unit 7 gating metal-oxide-semiconductor 5, to control the on-off of every parallel branch
The corresponding balanced a certain section of selectivity.
In practice, each balancing disk can generally connect six section single batteries 4.The euqalizing current acquires functional module
9 acquire active equalization electric current in real time；It is enabled to the output of Balance route unit 7 and in overcurrent；7 energy of Balance route unit
Enough quickly cutting equalizing circuits, realize overcurrent protection.The voltage acquisition module 10 is for acquiring in same parallel branch
4 voltage of single battery, and it is fed back to Balance route unit 7.Further, the hardware of above-mentioned Balance route unit 7 is constituted
Balanced circuit building, electric quantity monitoring feedback.Judgement, lower sending charge and discharge balancing control strategy are calculated to electricity, specifically acquired
4 voltage value of single battery carries out calculating maintenance energy balance according to record SOC chip and 4 charge and discharge electrographic recording of single battery；And
In balanced circuit constructed by the control unit 7 that weighs, the euqalizing current total amount of the single battery in discharge condition need to be less than or wait
In the euqalizing current total amount of the single battery in charged state.
The step of constructing balanced circuit the following are Balance route unit 7:
1. there is the euqalizing current for the single battery 4 for needing balanced discharge state when using under 8 electric power thus supplied of Switching Power Supply
When total amount is greater than in the euqalizing current total amount of single battery 4 for needing equalizaing charge state, meeting trigger module Switching Power Supply goes out
Existing over-voltage phenomenon.
2. supply voltage monitoring unit 6 monitors balancing disk supply voltage, it is defeated to can trigger supply voltage monitoring unit 6
Over-voltage is enabled out.
3. Balance route unit 7 receives the over-voltage trigger signal of supply voltage monitoring unit 6, while receiving voltage acquisition mould
4 voltage condition of newest single battery that the acquisition of block 10 uploads, is judged.
4. according to structure is judged, Balance route unit 7 passes through switching primary side metal-oxide-semiconductor 2, secondary side metal-oxide-semiconductor 3 and gating metal-oxide-semiconductor 5
Working condition, change monomer charge and discharge direction；To make supply voltage reduce, protection balance module, switch power module (electricity
Changing Switching Power Supply on electrical automobile is vehicle-mounted DC/DC module).
Based on above embodiment, combining shown in Figure of description (by taking two balancing disks as an example, and on each balancing disk
It is all connected with a section single battery 4), the explanation of working condition is carried out for this programme.
1. supply voltage monitoring unit 6 does not trigger, and Switching Power Supply is inside when carrying out two section 4 equalizaing charges of single battery
Input uniform electric current works normally.
2. supply voltage monitoring is single when carrying out 4 equalizaing charge of a section single battery, section 4 balanced discharge of single battery
Member 6 does not trigger, the inside input module operating current of Switching Power Supply, works normally.
3. balancing disk supply voltage first is raised by moment, supply voltage when carrying out two section 4 balanced discharges of single battery
Monitoring unit 6 is triggered work, exports enable signal, and balancing disk control chip power supply is enabled to be switched shutdown, including PWM wave is defeated
Chip, secondary side constant-current source adjust circuit out, gating switch switching circuit is turned off by protection, is pulled low supply voltage, safeguard mould
Block works normally.Simultaneously balancing disk charge and discharge direction can be adjusted, is put by original two sections single battery, 4 equilibrium by software control
Electricity is changed to a batteries equalizaing charge, a batteries balanced discharge, reaches energy transfer balance.
According to first monitoring, rear control, then the logic adjusted execute above-mentioned steps.
Above-mentioned technical proposal is related to a kind of two-way active equalization management system of usable Switching Power Supply power supply, this can be used
Supply voltage monitoring unit 6 in the two-way active equalization management system of Switching Power Supply power supply is used to supervise balancing disk supply voltage
It surveys, Balance route unit 7 then can be used for controlling switching single balancing disk charge and discharge direction and control gating metal-oxide-semiconductor is opened and closed
It closes.Therefore it can be used the two-way active equalization management system of Switching Power Supply power supply can be anti-according to preset condition and monitoring using this
Feedback condition, system automatically control single battery 4 (lithium battery) quantity of balancing disk charge and discharge direction and access, to can avoid
Excess energy input switch power supply in balancing procedure, the two-way active that can avoid Switching Power Supply and the power supply of usable Switching Power Supply are equal
The problem of weighing apparatus management system internal module is protected or burnt out, makes system worked well.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (4)
- The two-way active equalization management system 1. a kind of usable Switching Power Supply is powered, including direct-current switch power supply circuit, balanced choosing Circuit passband and balancing disk；The balancing disk includes the primary side route being connected with direct-current switch power supply circuit, and is gated with balanced The connected secondary sideline road of circuit, primary side route and secondary sideline road induction line each other；It is characterized by: the dc switch electricity Supply voltage monitoring unit and Balance route unit are also connected in source circuit；The supply voltage monitoring unit, for equal Plate supply voltage monitoring of weighing can export enabled when there is power supply overpressure situation to Balance route unit；The balancing disk Primary side route is equipped with primary side metal-oxide-semiconductor, and the secondary sideline road of balancing disk is equipped with secondary side metal-oxide-semiconductor, primary side metal-oxide-semiconductor and secondary side metal-oxide-semiconductor It can be converted between direct current and alternating current；The balanced gating circuit includes a plurality of parallel branch, every parallel branch On be respectively connected with single battery and gating metal-oxide-semiconductor；The switch of the Balance route unit control primary side metal-oxide-semiconductor and secondary side metal-oxide-semiconductor Frequency, and the switch of gating metal-oxide-semiconductor；The Balance route unit can control primary side route and the secondary sideline road of balancing disk On-off and current direction；In the balanced circuit of Balance route building unit, the euqalizing current of the single battery in discharge condition Total amount need to be less than or equal to the euqalizing current total amount of the single battery in charged state.
- The two-way active equalization management system 2. a kind of usable Switching Power Supply according to claim 1 is powered, feature exist In: the balancing disk is equipped with multiple groups, and the primary side lines in parallel of multiple groups balancing disk is equipped with multiple groups on direct-current switch power supply circuit Balanced gating circuit respectively with the secondary side connection of multiple groups balancing disk.
- The two-way active equalization management system 3. a kind of usable Switching Power Supply according to claim 1 is powered, feature exist In: the secondary sideline road of the balancing disk is additionally provided with euqalizing current acquisition functional module；The euqalizing current acquires functional module Active equalization electric current is acquired in real time；It is enabled to the output of Balance route unit and in overcurrent.
- The two-way active equalization management system 4. a kind of usable Switching Power Supply according to claim 1 is powered, feature exist In: the equilibrium gating circuit is equipped with voltage acquisition module, and the voltage acquisition module is used to acquire monomer battery voltage, And it is fed back to Balance route unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821455277.3U CN208638071U (en) | 2018-09-06 | 2018-09-06 | A kind of two-way active equalization management system of usable Switching Power Supply power supply |
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| CN201821455277.3U CN208638071U (en) | 2018-09-06 | 2018-09-06 | A kind of two-way active equalization management system of usable Switching Power Supply power supply |
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| CN208638071U true CN208638071U (en) | 2019-03-22 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108767949A (en) * | 2018-09-06 | 2018-11-06 | 杭州高特电子设备股份有限公司 | A kind of two-way active equalization of usable Switching Power Supply power supply manages system |
| CN113370845A (en) * | 2021-06-07 | 2021-09-10 | 珠海格力电器股份有限公司 | Current reversing control device and method of BMS active equalization system and automobile |
| WO2022090415A1 (en) * | 2020-10-29 | 2022-05-05 | Fronius International Gmbh | Switched-mode power supply for symmetrizing an intermediate circuit |
-
2018
- 2018-09-06 CN CN201821455277.3U patent/CN208638071U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108767949A (en) * | 2018-09-06 | 2018-11-06 | 杭州高特电子设备股份有限公司 | A kind of two-way active equalization of usable Switching Power Supply power supply manages system |
| WO2022090415A1 (en) * | 2020-10-29 | 2022-05-05 | Fronius International Gmbh | Switched-mode power supply for symmetrizing an intermediate circuit |
| CN113370845A (en) * | 2021-06-07 | 2021-09-10 | 珠海格力电器股份有限公司 | Current reversing control device and method of BMS active equalization system and automobile |
| CN113370845B (en) * | 2021-06-07 | 2023-08-18 | 珠海格力电器股份有限公司 | Current commutation control device and method of BMS active equalization system and automobile |
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