CN205811567U - A kind of battery management system - Google Patents
A kind of battery management system Download PDFInfo
- Publication number
- CN205811567U CN205811567U CN201620329590.7U CN201620329590U CN205811567U CN 205811567 U CN205811567 U CN 205811567U CN 201620329590 U CN201620329590 U CN 201620329590U CN 205811567 U CN205811567 U CN 205811567U
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- Prior art keywords
- battery
- batteries
- switch
- charge
- control chip
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Abstract
This utility model relates to a kind of battery management system, and including multiple battery, charge-discharge circuit and control chips being connected in series, the charge-discharge end of charge-discharge circuit is connected with battery, and signal input part is connected with control chip conducting；Each battery is all in series with the first switch and is parallel with second switch, and the first switch and second switch are all connected with control chip conducting, and the second switch of adjacent two batteries is connected in series；This system also includes that the multiple voltage sampling unit connected one to one with multiple batteries, its sampled signal outfan are connected with control chip conducting.So can gather the real-time voltage of battery, to voltage the highest beyond one or more batteries carry out synchronous charging, or one or more batteries that voltage is the highest are carried out synchronous discharge, so circulation, until the electricity of all batteries is simultaneously filled with or discharges complete, solving and cause imbalance problem due to battery consumable, efficiency for charge-discharge is high, battery capacity is guaranteed, and service life is long.
Description
Technical field
This utility model belongs to technical field of battery management, particularly to a kind of battery management system.
Background technology
At present, the battery (charged lithium cells) on market is applied quite varied, and these batteries are the most all set of cells, by many
Individual battery is connected or is formed in parallel, but inherently has consumable (about 3%～8%) due to battery, and the voltage causing each battery is equal
Differ, uneven；So, these multiple batteries being connected in series are in charging process, if one of them battery is full of, reaches to arrange
Maximum voltage value time, i.e. stop charging, other battery underfill condition occurs, causes battery capacity to reduce；On the contrary, this series connection
The multiple batteries connected are at discharge process, if one of them battery discharge is complete, when reaching the minimum voltage value arranged, i.e. stop
Electric discharge, occurs that other battery is not discharged situation, causes discharge rate of battery to reduce.Therefore, these batteries existing all can occur
Capacity in various degree reduces phenomenon, and service life is short.
Utility model content
In order to solve above-mentioned technical problem present in prior art, this utility model provide one can effectively solve by
Causing cell voltage imbalance problem in battery consumable, charging, discharging efficiency are high, stable performance, reliable, and battery capacity has guarantor
Card, service life length battery management system.
For solving above-mentioned technical problem, this utility model adopts the following technical scheme that
A kind of battery management system method, includes multiple battery, charge-discharge circuit and control chip being connected in series, described
The charge-discharge end of charge-discharge circuit is connected with battery, and signal input part is connected with control chip conducting；Each described battery is all gone here and there
Being associated with the first switch and be parallel with second switch, described first switch and second switch are all connected with control chip conducting, and phase
The second switch of adjacent two batteries is connected in series；Described battery management system also includes multiple voltage sampling unit, described many
Individual voltage sampling unit connects one to one with multiple batteries, and its sampled signal outfan is connected with control chip conducting.
Further, described voltage sampling unit is AD sample circuit.
The beneficial effects of the utility model are:
This utility model passes through technique scheme, can effectively solve to cause cell voltage uneven due to battery consumable
Weighing apparatus problem, charging, discharging efficiency are high, stable performance, reliable, and battery capacity is guaranteed, and service life is greatly prolonged, and structure
Simply, production and processing is easy.
Accompanying drawing explanation
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings:
Fig. 1 is the structural representation of a kind of battery management system embodiment described in the utility model.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model.Should be appreciated that specific embodiment described herein is only in order to explain this
Utility model, is not used to limit this utility model.
As shown in fig. 1:
This utility model embodiment provides a kind of battery management system and management method, includes multiple being connected in series
Battery 1, charge-discharge circuit 2 and control chip 3, the charge-discharge end of described charge-discharge circuit 2 is connected with battery 1, signal input part
It is connected with control chip 3 conducting；Each battery 1 is all in series with the first switch 4 and is parallel with second switch 5, described first switch 4
All it is connected with control chip 3 conducting with second switch 5, and the second switch 5 of adjacent two batteries 1 is connected in series；Described battery
Management system also includes multiple voltage sampling unit 6, and the plurality of voltage sampling unit 6 can be AD sample circuit, with many
Individual battery 1 connects one to one, and its sampled signal outfan is connected with control chip 3 conducting.
The management method of battery management system described in the utility model is: multiple batteries that first Real-time Collection is connected in series
Real-time voltage；Then to voltage the highest beyond one or more batteries carry out synchronous charging, so circulate, until all electricity
The electricity in pond is simultaneously filled with, reaches to set maximum voltage value；Or, one or more batteries that voltage is the highest are carried out Synchronous Radio
Electricity, so circulates, until the electricity of all batteries discharges complete, to reach setting high-low voltage value simultaneously.Wherein, described " to electricity
Press the one or more batteries beyond the highest to carry out synchronous charging, so circulate, until the electricity of all batteries is simultaneously filled with,
Reach to set maximum voltage value " particularly as follows: one or more batteries that real-time voltage value second is high and following are carried out synchronization and fill
Electricity, when the battery that the battery charged voltage value that this real-time voltage value second is high is the highest with real-time voltage value before charging is identical,
Stop charging, then one or more batteries that real-time voltage value second current after charging is high and following continued synchronous charging,
So all batteries, when the real-time voltage value of all batteries is identical, are carried out synchronous charging by circulation, until the electricity of all batteries
Amount is simultaneously filled with, reaches to set maximum voltage value.Described " one or more batteries that voltage is the highest are carried out synchronous discharge, as
This circulation, until the electricity of all batteries discharges complete, to reach setting high-low voltage value simultaneously " particularly as follows: to real-time voltage value
The highest one or more batteries carry out synchronous discharge, when after the battery discharge that this real-time voltage value is the highest magnitude of voltage with electric discharge before
When battery that real-time voltage value second is high is identical, stop electric discharge, then to real-time voltage value current after electric discharge the highest or
Multiple batteries continue synchronous discharge, so circulate, when the real-time voltage value of all batteries is identical, synchronize all batteries
Electric discharge, until the electricity of all batteries discharges complete, to reach setting high-low voltage value simultaneously.
So, by battery management system described in the utility model and management method, can effectively solve due to battery certainly
Consumption and cause cell voltage imbalance problem, charging, discharging efficiency are high, stable performance, reliable, and battery capacity is guaranteed, uses
Life-span is greatly prolonged, and simple in construction, production and processing is easy.
The above is preferred implementation of the present utility model, it is noted that for the ordinary skill of the art
For personnel, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these improve and profit
Decorations are also considered as protection domain of the present utility model.
Claims (2)
1. a battery management system, it is characterised in that: include multiple be connected in series battery (1), charge-discharge circuit (2) and
Control chip (3), the charge-discharge end of described charge-discharge circuit (2) is connected with battery (1), signal input part and control chip (3)
Conducting connects；Each described battery (1) is all in series with the first switch (4) and is parallel with second switch (5), described first switch
(4) all it is connected with control chip (3) conducting with second switch (5), and second switch (5) series connection of adjacent two batteries (1) is even
Connect；Described battery management system also includes multiple voltage sampling unit (6), and the plurality of voltage sampling unit (6) is with multiple
Battery (1) connects one to one, and its sampled signal outfan is connected with control chip (3) conducting.
Battery management system the most according to claim 1, it is characterised in that: described voltage sampling unit (6) is AD sampling electricity
Road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620329590.7U CN205811567U (en) | 2016-04-19 | 2016-04-19 | A kind of battery management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620329590.7U CN205811567U (en) | 2016-04-19 | 2016-04-19 | A kind of battery management system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205811567U true CN205811567U (en) | 2016-12-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620329590.7U Withdrawn - After Issue CN205811567U (en) | 2016-04-19 | 2016-04-19 | A kind of battery management system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205811567U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720658A (en) * | 2016-04-19 | 2016-06-29 | 珠海麟盛电子科技有限公司 | Battery management system and management method |
-
2016
- 2016-04-19 CN CN201620329590.7U patent/CN205811567U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720658A (en) * | 2016-04-19 | 2016-06-29 | 珠海麟盛电子科技有限公司 | Battery management system and management method |
| CN105720658B (en) * | 2016-04-19 | 2019-04-09 | 珠海麟盛电子科技有限公司 | A kind of battery management system and management method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161214 Effective date of abandoning: 20190409 |
|
| AV01 | Patent right actively abandoned |