CN109286230A - Charging protection circuit for storage battery - Google Patents
Charging protection circuit for storage battery Download PDFInfo
- Publication number
- CN109286230A CN109286230A CN201811540043.3A CN201811540043A CN109286230A CN 109286230 A CN109286230 A CN 109286230A CN 201811540043 A CN201811540043 A CN 201811540043A CN 109286230 A CN109286230 A CN 109286230A
- Authority
- CN
- China
- Prior art keywords
- battery
- charging
- voltage
- circuit
- 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.)
- Withdrawn
Links
- 238000001514 detection method Methods 0.000 claims abstract description 4
- 230000001012 protector Effects 0.000 claims abstract description 3
- 229920006395 saturated elastomer Polymers 0.000 claims abstract 2
- 230000005611 electricity Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
Classifications
-
- H02J7/0086—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
- H02H5/047—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature using a temperature responsive switch
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/18—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteries; for accumulators
-
- 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
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
-
- H02J7/0091—
-
- 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
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The present invention is a kind of charging protection circuit for storage battery, it carries out overcharging overheat protector for the single battery in battery group serial connection charge, according to battery standard charging voltage used, it is saturated float charge voltage, voltage detecting is used to single battery, when charging voltage reaches battery saturation voltage, it opens shunt current and shares charging current, so that single battery charging voltage maintains float charge voltage, it will not increase again, to protect battery not to be overcharged, temperature detection is carried out to battery simultaneously, after being more than cell safety temperature, disconnect battery circuit and with audible alarm, to achieve the purpose that safe charging.
Description
Technical field
The present invention is a kind of charging protection circuit for storage battery, is overcharged to the single battery in battery group serial connection charge
Overheat protector.
Background technique
Battery charger mature, it is same to protect circuit type very much, but charge both for cell batteries,
Protect circuit charging reach saturation voltage after, with reduce charging current and cutting charging circuit based on.
But electric bicycle is battery group serial connection charge mode, such as attached drawing 3, due to cell batteries quality and use
Upper difference, monomer battery voltage is all in imbalance, and often after a battery charging saturation, other battery is charged to not yet
At this moment saturation must continue to charge more even in low electricity condition, but the battery that will lead to reach saturation voltage in this way is a large amount of
Overcharge so that largely battery life is shortened in fever, or even causes electric vehicle incidents of spontaneous combustion.
So in the case where battery pack serial connection charge mode cannot be changed, develop that a kind of that single battery can be protected not overcharge is only warm
Circuit, be to prevent electric vehicle necessity and effective means on fire in charging.
Summary of the invention
Circuit of the present invention is applied to series-connected batteries, but defencive function is directed to and is applied to single battery, as long as having
More than two batteries connecting all can apply, and four batteries are only to illustrate in attached drawing, and black arrow indicates charge current loop direction,
From anode to cathode.
The specific circuit of the present invention no longer describes, because with different component and chip or different line modes, all
The function can be reached, however, using which kind of circuit, as long as using this circuit module thinking, and it is used in function of the present invention
With belonging to the example invaded only.
The present invention protects circuit mainly to have a voltage detecting, and charging shunts, temperature detection, and power down function is constituted, battery just
Under normal state, only voltage detecting works, and operating current micro- can be disregarded much smaller than battery self discharge itself.
In battery charging state, when certain battery, which is electrically charged, reaches saturation voltage, voltage detecting will activating charge
Shunt circuit, the circuit will share part charging current, and the cell voltage is maintained saturation floating charge shape once being connected
State will not excessively be charged and be generated heat, and remaining does not reach the battery of saturation voltage, can continue with normal current charge until
Into saturation floating charge state.
The excess temperature power down function of circuit is connected using suitable temperature detect switch (TDS) and accesses relay coil, then battery is powered
Circuit increases breakpoint, and the breakpoint is sealed in relay closing point, once temperature detect switch (TDS) detects high temperature, enters normally closed shape by normally opened
State is switched on relay, and relay closing point becomes open circuit point, and cell circuit main line disconnects, and guarantees high temperature power down function.
Detailed description of the invention
Fig. 1；Protective module structure function schematic diagram.
Fig. 2；Protective module wiring schematic diagram in battery pack.
Fig. 3；There is no the battery pack original charging modes wiring schematic diagram of protective module.
Legend；1, battery 2,220V turns DC charger 3, charging protecting module 4, relay normally closed contact
5, temperature detect switch (TDS) module 6, relay module 7, voltage detection module 8, current distributing module.
Specific embodiment
The wiring of this module is simple, without changing charger etc., only need to when install battery, distinguish it is positive and negative be connected in it is former electric
Pond is exactly only charging protection function, then by cell circuit, increases breakpoint and simultaneously seal in the normally closed point of relay.
Claims (2)
1. a kind of charging protection circuit for storage battery carries out overcharging overheat protector to the single battery in battery group serial connection charge,
According to battery standard charging voltage used, it is saturated float charge voltage, voltage detecting is used to single battery, when charging voltage reaches electricity
When the saturation voltage of pond, open shunt current share charging current so that single battery charging voltage maintain float charge voltage will not
It increases that battery is protected not to be overcharged again, while temperature detection is carried out to battery, after being more than cell safety temperature, break
Battery circuit is opened and with audible alarm, to achieve the purpose that safe charging.
2. single battery according to claim 1 protects circuit, current shunting circuit has radiator fan to open jointly when starting
It is dynamic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811540043.3A CN109286230A (en) | 2018-12-18 | 2018-12-18 | Charging protection circuit for storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811540043.3A CN109286230A (en) | 2018-12-18 | 2018-12-18 | Charging protection circuit for storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109286230A true CN109286230A (en) | 2019-01-29 |
Family
ID=65173967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811540043.3A Withdrawn CN109286230A (en) | 2018-12-18 | 2018-12-18 | Charging protection circuit for storage battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109286230A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112202219A (en) * | 2020-09-21 | 2021-01-08 | 重庆蓝岸通讯技术有限公司 | Intercom high-capacity battery charging device and charging method |
| CN113787915A (en) * | 2021-08-24 | 2021-12-14 | 上海奥威科技开发有限公司 | Overtemperature early warning and active safety control system device and control method |
-
2018
- 2018-12-18 CN CN201811540043.3A patent/CN109286230A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112202219A (en) * | 2020-09-21 | 2021-01-08 | 重庆蓝岸通讯技术有限公司 | Intercom high-capacity battery charging device and charging method |
| CN113787915A (en) * | 2021-08-24 | 2021-12-14 | 上海奥威科技开发有限公司 | Overtemperature early warning and active safety control system device and control method |
| WO2023024860A1 (en) * | 2021-08-24 | 2023-03-02 | 上海奥威科技开发有限公司 | Over-heating early warning and active safety control system apparatus, and control method |
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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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190129 |
|
| WW01 | Invention patent application withdrawn after publication |