CN109149671A - A kind of battery pack device - Google Patents
A kind of battery pack device Download PDFInfo
- Publication number
- CN109149671A CN109149671A CN201710463335.0A CN201710463335A CN109149671A CN 109149671 A CN109149671 A CN 109149671A CN 201710463335 A CN201710463335 A CN 201710463335A CN 109149671 A CN109149671 A CN 109149671A
- Authority
- CN
- China
- Prior art keywords
- battery
- voltage
- module
- overcharge
- balance
- 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.)
- Pending
Links
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 14
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 7
- 229910052744 lithium Inorganic materials 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 5
- 230000001960 triggered effect Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 abstract description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 5
- 229910001416 lithium ion Inorganic materials 0.000 description 5
- 239000002253 acid Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910000314 transition metal oxide Inorganic materials 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- H02J7/0026—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00302—Overcharge protection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00306—Overdischarge protection
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a kind of battery pack devices, it is constructed using modular battery, each battery module has independent balance of voltage module and voltage checking chip, so that be charged and discharged electric current without flow through any circuit board, allow in battery pack to user's greater flexibility and provides different electric currents.Its technical solution are as follows: battery pack device is by building by multiple battery modules of multiple battery compositions, in conjunction with balance of voltage module and voltage checking chip, voltage checking chip will issue overcharge signal if a battery in any battery module is more than a given voltage, voltage checking chip will issue over-discharge electric signal if a battery in any battery module is lower than another given voltage, perhaps over-discharge electric signal is transmitted to upstream battery module for controlling total an electronic switch or relay switch to overcharge signal.
Description
Technical field
The present invention relates to energy storage solutions, more particularly to the battery pack device based on expansible battery module.
Background technique
Lithium ion battery provides clean energy resource substitute, and safety is good, has extended cycle life, and innocuous substance is pollution-free.It is electronic
Bicycle and golf cart use always lead-acid battery due at low cost.With the decline of lithium battery price, lithium-ion electric
Pond starts to replace lead-acid accumulator.
Lithium ion battery generally includes anode, cathode, partition and electrolyte.Modern lithium ion battery is usually using graphite material
Material is used as anode, and transition metal oxide is as cathode.During charge and discharge, lithium ion transmits between a cathode and an anode.
It realizes target voltage, needs series-connected cell.Since material and technique are inconsistent, the energy capacity of battery is put certainly
Electric rate and internal resistance may be different.Being connected due to charge into each battery is identical, battery capacity, self-discharge rate and internal resistance
The voltage that difference will lead to each battery is different.
With the charging of battery, the voltage of the lesser battery of capacity by the voltage increase than the battery with larger capacity more
Fastly.The lesser battery of capacity is more likely overcharged.When the cell is discharged, the voltage of the biggish battery of capacity can specific capacity
The voltage of lesser battery reduces.The lesser battery of capacity is more likely overcharged.
Battery with higher self-discharge rate can have lesser residual capacity over time.It is different when having
When the battery cells in series of self-discharge rate and charging, the battery with smaller self-discharge rate by voltage with higher simultaneously
And it could be overcharged.
Lithium battery is usually sensitive to overcharge and overdischarge.Overcharge and overdischarge are harmful lithium battery cycle performances.
Overcharge possibly even leads to battery fire.
In order to protect lithium battery, the voltage of each battery is controlled using battery protecting plate.The circuit board is usually by detecting
The control chip and electronic switch of cell voltage carry out make-and-break contact.Used in these circuits switch can be CMOS or
Relay switch.The former has longer cycle life, but with the increase of circuital current, as ohm heat is I2R, heat dissipation is bright
It is aobvious to increase.Relay switch can handle high-current switch, but its service life is more limited.
In traditional cell stack designs, charging and discharging currents flow through the circuit on control panel.
Therefore, it for different voltage applications, needs to customize specific battery according to its number of batteries and applied current
Management system.
Summary of the invention
A brief summary of one or more aspects is given below to provide to the basic comprehension in terms of these.This general introduction is not
The extensive overview of all aspects contemplated, and be both not intended to identify critical or decisive element in all aspects also non-
Attempt to define the range in terms of any or all.Its unique purpose is to provide the one of one or more aspects in simplified form
A little concepts are with the sequence for more detailed description given later.
The purpose of the present invention is to solve the above problem, provides a kind of battery pack device, is constructed using modular battery,
Each battery module has independent balance of voltage module and voltage checking chip, so that being charged and discharged electric current without flow through any
Circuit board allows in battery pack to user's greater flexibility and provides different electric currents.
The technical solution of the present invention is as follows: present invention discloses a kind of battery pack devices, multiple batteries including series connection
Module and a super-charge super-discharge protect master switch, and super-charge super-discharge protects master switch quilt after receiving overcharge/over-discharge electric signal
Triggering, wherein each battery module further include:
Concatenated multiple batteries,；
Balance of voltage module reduces the voltage difference between multiple battery；
Voltage checking chip measures the respective voltage of multiple battery and judges whether to be more than that overcharge limits or is lower than
Overdischarge limitation, issues overcharge signal if being more than overcharge limitation and upstream battery module is sent, if being lower than overdischarge
Limitation then issues over-discharge electric signal and upstream battery module is sent；
Signal port, including input signal port and output signal port, wherein input signal port receives downstream battery
The overcharge of module/over-discharge electric signal, output signal port are sent upstream by overcharge/over-discharge electric signal.
One embodiment of battery pack device according to the present invention, each battery module further include:
Balance of voltage module joint lines connect with the balance of voltage module joint lines of downstream and upstream, so that a battery
Battery in module not only carries out the balance of voltage with the battery in module, and it is flat also to carry out voltage with the battery in other battery modules
Weighing apparatus.
One embodiment of battery pack device according to the present invention passes through electrode connector between multiple battery modules and connects
At.
One embodiment of battery pack device according to the present invention, concatenated number of batteries is 2~4 in a battery module
It is a.
One embodiment of battery pack device according to the present invention, the battery in battery module is single battery or parallel connection
Multiple batteries.
One embodiment of battery pack device according to the present invention, battery are lithium battery.
The present invention, which compares the prior art, to be had following the utility model has the advantages that battery pack device of the invention is by constructing by multiple electricity
Multiple battery modules of pond composition, in conjunction with balance of voltage module and voltage checking chip, if one in any battery module
Battery is more than given voltage, and sending is overcharged signal by voltage checking chip, and is transmitted to upstream battery module, for controlling one
Total electronic switch or relay switch.Due to there is no electronic switch in single battery module of the invention, reduce complexity
Property and cost, completely eliminate the waste heat of generation, and greater flexibility will be brought to user and provides difference in battery pack to allow
On the other hand electric current can eliminate the danger of overcharge and overdischarge by the voltage drop between battery as low as millivolt level.
Detailed description of the invention
Fig. 1 shows the schematic diagram of the embodiment of battery pack device of the invention.
Fig. 2 shows the schematic diagrams of the battery module in battery pack device.
Specific embodiment
After the detailed description for reading embodiment of the disclosure in conjunction with the following drawings, it better understood when of the invention
Features described above and advantage.In the accompanying drawings, each component is not necessarily drawn to scale, and has similar correlation properties or feature
Component may have same or similar appended drawing reference.
Fig. 1 shows the principle of the embodiment of battery pack device of the invention.Referring to Figure 1, the battery pack of the present embodiment
Device includes multiple battery module compositions, is in the present embodiment three battery modules 11,12,13, and these battery modules 11~
It is to be connected in series by electrode connector (such as electrode connector 14,15), and these battery modules are connected jointly between 13
One super-charge super-discharge protects master switch 2.As shown in Fig. 2, by taking battery module 11 as an example inside each battery module comprising string
Multiple batteries (being in the present embodiment three batteries 111,112,113, usually 2~4 battery compositions), the balance of voltage of connection
Module (being in the present embodiment three balance of voltage modules 114,115,116), voltage checking chip 117.In each battery mould
The electric current for flowing in and out battery module is all controlled in block without electronic switch or relay switch, that is to say, that flow through electricity
The electric current of pond module will not pass through electronic switch, this will completely eliminate the heat of generation, allow to user's greater flexibility
Battery pack provides different electric currents.Battery 111~113 can be single battery, be also possible to multiple batteries in parallel.In each electricity
In pond module (by taking battery module 12 as an example) all there are two signal port IN 1. with OUT 2., middle port IN receive come from downstream
3., port OUT is sent upstream by overcharge/over-discharge electric signal to the overcharge of battery module/over-discharge electric signal.If battery module
Interior battery be in overcharge/over-discharge or downstream any battery be in overcharge/over-discharge, then the battery module can also be exported and be overcharged
Electricity/over-discharge electric signal.Overcharge/over-discharge electric signal may be coupled to alarm lamp, sound or relay switch.Dotted line in Fig. 1
The transmission of overcharge/over-discharge electric signal is represented, solid line indicates current direction.
Balance of voltage module 114~116 reduces the difference of cell voltage for reducing the voltage difference between battery 111~113
It is different, the voltage difference between battery can be reduced to millivolt level, and eliminate the risk of overcharge and overdischarge, specific implementation can borrow
Help transformer and two-way DC/AC converter.Battery module further includes balance of voltage module joint lines 16.In one battery module
Balance of voltage module joint lines 16 connect with the battery equilibrium module joint lines of downstream and upstream so that in a battery module
Battery not only can with other batteries in same module carry out the balance of voltage, can also be with the battery in other battery modules
Carry out the balance of voltage.Voltage checking chip 117 is used to measure the voltage of each battery.If any cell voltage is more than overcharged voltage
Limitation, voltage checking chip 117 will generate overcharge signal and be transmitted to upstream battery module and control in battery pack device
Total electronic switch or relay switch (super-charge super-discharge protects master switch 2).If any cell voltage is lower than over-discharge piezoelectric voltage
Limitation, voltage checking chip 117 will generate over-discharge electric signal and be transmitted to upstream battery module and control in battery pack device
Super-charge super-discharge protects master switch 2.Detect that any battery in battery module encounters overcharge when overcharging Cross prevention master switch 2
Or when overdischarge, super-charge super-discharge protection master switch 2 will be closed.It is different from cmos switch used in conventional batteries, mistake
It fills Cross prevention master switch 2 to be seldom triggered, only can just be triggered when there is serious security problem, in addition, when activated will
Need safeguard service.
Battery in the present embodiment is, for example, lithium battery.
Offer is to make any person skilled in the art all and can make or use this public affairs to the previous description of the disclosure
It opens.The various modifications of the disclosure all will be apparent for a person skilled in the art, and as defined herein general
Suitable principle can be applied to other variants without departing from the spirit or scope of the disclosure.The disclosure is not intended to be limited as a result,
Due to example described herein and design, but should be awarded and principle disclosed herein and novel features phase one
The widest scope of cause.
Claims (6)
1. a kind of battery pack device, which is characterized in that multiple battery modules and a super-charge super-discharge protection including series connection
Master switch, super-charge super-discharge protection master switch is triggered after receiving overcharge/over-discharge electric signal, wherein each battery module is also
Include:
Concatenated multiple batteries,；
Balance of voltage module reduces the voltage difference between multiple battery；
Voltage checking chip measures the respective voltage of multiple battery and judges whether to be more than that overcharge limits or lower than over-discharge
Electricity limitation, issues overcharge signal if being more than overcharge limitation and upstream battery module is sent, if limiting lower than overdischarge
It then issues over-discharge electric signal and upstream battery module is sent；
Signal port, including input signal port and output signal port, wherein input signal port receives downstream battery module
Overcharge/over-discharge electric signal, output signal port is sent upstream by overcharge/over-discharge electric signal.
2. battery pack device according to claim 1, which is characterized in that each battery module further include:
Balance of voltage module joint lines connect with the balance of voltage module joint lines of downstream and upstream, so that a battery module
Interior battery not only carries out the balance of voltage with the battery in module, also carries out the balance of voltage with the battery in other battery modules.
3. battery pack device according to claim 1, which is characterized in that pass through electrode connector between multiple battery modules
It is connected in series.
4. battery pack device according to claim 1, which is characterized in that concatenated number of batteries is in a battery module
2~4.
5. battery pack device according to claim 1, which is characterized in that the battery in battery module be single battery or
Multiple batteries in parallel.
6. battery pack device according to any one of claim 1 to 5, which is characterized in that battery is lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710463335.0A CN109149671A (en) | 2017-06-19 | 2017-06-19 | A kind of battery pack device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710463335.0A CN109149671A (en) | 2017-06-19 | 2017-06-19 | A kind of battery pack device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109149671A true CN109149671A (en) | 2019-01-04 |
Family
ID=64804197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710463335.0A Pending CN109149671A (en) | 2017-06-19 | 2017-06-19 | A kind of battery pack device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109149671A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101621131A (en) * | 2008-07-01 | 2010-01-06 | 株式会社日立制作所 | Battery system |
| CN103123991A (en) * | 2011-11-18 | 2013-05-29 | 德龙伟创科技(深圳)有限公司 | Lithium-based batteries connected in parallel by modules |
-
2017
- 2017-06-19 CN CN201710463335.0A patent/CN109149671A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101621131A (en) * | 2008-07-01 | 2010-01-06 | 株式会社日立制作所 | Battery system |
| CN103123991A (en) * | 2011-11-18 | 2013-05-29 | 德龙伟创科技(深圳)有限公司 | Lithium-based batteries connected in parallel by modules |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208316322U (en) | Battery protection system and battery protection board thereof | |
| CN105429226B (en) | Large capacity charge-discharge battery manages system | |
| CN103001275B (en) | Battery bag, electronic installation and battery bag arrangement | |
| CN101436774A (en) | Protective system for lithium ion battery | |
| KR100809453B1 (en) | The monitering system for charging and discharging lithium rechargable battery pack | |
| CN203466559U (en) | Lithium battery charging and discharging protection circuit | |
| CN104064827B (en) | Nickel-metal hydride battery pack with safety protection system | |
| CN101192756A (en) | Balance charging and discharging protection circuit of secondary battery and its method | |
| CN102208696A (en) | High-capacity lithium battery pack | |
| CN104201654A (en) | Battery pack balance protecting system and method | |
| CN106080252B (en) | A kind of batteries of electric automobile group equalization methods | |
| CN108667107A (en) | A kind of storage battery equalizing circuit and control method including auxiliary battery | |
| CN208015388U (en) | A kind of protection circuit of battery pack | |
| CN105048574A (en) | Full-cycle control system for supporting arbitrary parallel connection of different types of charging-discharging devices and control method thereof | |
| CN201199534Y (en) | Lithium ion battery package and cascade, parallel connection application circuit thereof | |
| TW201714341A (en) | Active balanced charging device enables the multiple battery moduels of the secondary battery to be charged in balance through invented loop | |
| CN203278206U (en) | Battery pack discharging protection circuit and device | |
| CN205429792U (en) | Group battery monitored control system | |
| CN105048579B (en) | It is a kind of to solve the problems, such as between different battery packs the mutually method of discharge and recharge | |
| CN104283276A (en) | Novel lithium battery pack protective plate | |
| TWI624977B (en) | Active balance charging device | |
| WO2023193460A1 (en) | Battery control circuit, electronic device, and charging control method | |
| CN111181224A (en) | Charging system for multi-section series battery pack and charging method thereof | |
| CN203166560U (en) | Battery group safety management system | |
| CN205335923U (en) | Charge -discharge intelligent management system of lithium cell group |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190104 |