CN111049228A - Integrated lithium battery charging and discharging management system of handheld dust collector - Google Patents
Integrated lithium battery charging and discharging management system of handheld dust collector Download PDFInfo
- Publication number
- CN111049228A CN111049228A CN201911422942.8A CN201911422942A CN111049228A CN 111049228 A CN111049228 A CN 111049228A CN 201911422942 A CN201911422942 A CN 201911422942A CN 111049228 A CN111049228 A CN 111049228A
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- Prior art keywords
- control module
- battery
- lithium battery
- dust collector
- charging
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- 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
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- 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
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- 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
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides an integrated lithium battery charging and discharging management system of a handheld dust collector, which comprises a battery cell voltage acquisition module and a control module; when a lithium battery of the handheld dust collector is charged, the cell voltage acquisition module acquires the voltage of each cell and transmits the voltage to the control module to judge whether the working state of each cell is normal or not in real time, and the control module controls whether the battery pack can be continuously charged or not; when the lithium battery of the handheld dust collector discharges, the battery cell voltage acquisition module acquires the voltage of each battery cell, the control module receives the voltage value and judges whether the work of the battery pack is normal or not, and the control module controls whether the battery pack can continue to discharge or not. The invention can form the organic integration of charging and discharging management, form the overvoltage protection in the charging and discharging process of the lithium battery, effectively prevent the lithium battery in the handheld dust collector from generating potential safety hazard, and further improve the service life of the lithium battery.
Description
Technical Field
The invention relates to a lithium battery charging and discharging management system, in particular to an integrated lithium battery charging and discharging management system of a handheld dust collector.
Background
With the continuous progress of science and technology, the desire of people for environment protection is stronger, the industry of new energy resources is developed vigorously, particularly, the industry of lithium batteries is developed rapidly, and then a new energy automobile and a handheld dust collector are provided, so that infinite convenience is brought to the life of people, and the era of finding plugs everywhere with a power line when the dust collector is not used is taken.
At present, a plurality of household appliances are provided with lithium batteries such as mobile phones, dust collectors, toy cars and the like, and the electric quantity of the lithium batteries is always consumed, so that the problem of charging the lithium batteries is faced. Charging equipment in the aspect is not available in the market at present, but the charging equipment has a plurality of potential safety hazards, and a lithium battery is easy to damage if being charged, and even a fire or an explosion can happen if the lithium battery is overcharged. Most of charging equipment in the current market is single-section charging, the charging is slow, most of the charging of multiple sections only detects the total voltage of the series connection of the batteries, and thus the working state of each section of battery core cannot be judged. Some devices do not determine the voltage path during discharge.
Therefore, the battery cannot support the operation of the device to be finished, which has a serious influence on the service life of the lithium battery.
Disclosure of Invention
In view of this, the invention provides an integrated lithium battery charging and discharging management system for a handheld dust collector, which can form organic integration of charging and discharging management, form overvoltage protection in the charging and discharging process of a lithium battery, effectively prevent the lithium battery in the handheld dust collector from generating potential safety hazards, and further improve the service life of the lithium battery.
Therefore, the invention provides an integrated lithium battery charging and discharging management system of a handheld dust collector, which comprises a cell voltage acquisition module and a control module;
when a lithium battery of the handheld dust collector is charged, the cell voltage acquisition module acquires the voltage of each cell and transmits the voltage to the control module to judge whether the working state of each cell is normal or not in real time, and the control module controls whether the battery pack can be continuously charged or not;
when the lithium battery of the handheld dust collector discharges, the battery cell voltage acquisition module acquires the voltage of each battery cell, the control module receives the voltage value and judges whether the work of the battery pack is normal or not, and the control module controls whether the battery pack can continue to discharge or not.
Further, when the lithium battery of the handheld dust collector is charged, the control module judges that the voltage of a certain battery cell or the total voltage is abnormal, and the control module controls the charging loop to be closed, so that the battery pack stops charging.
Further, the control module judges that the obtained cell voltage is abnormal, and the control module stops discharging of the battery pack through the power supply chip.
Further, still include battery temperature collection module, when the lithium cell of hand-held type dust catcher discharged, the battery package sent heat when discharging, and battery temperature collection module gathers the surface temperature of battery package, and when surface temperature reached safe in utilization temperature, control module sent the instruction of reducing power to the motor of hand-held type dust catcher to reduce the discharge current of battery package.
Further, when the control module judges that the surface temperature exceeds the safe use temperature, the control module stops discharging of the battery pack through the power supply chip.
Further, the control module is an MCU control chip.
Further, the cell voltage acquisition module transmits data to the control module through I2C communication.
The invention provides an integrated lithium battery charging and discharging management system of a handheld dust collector, wherein during charging, a cell voltage acquisition module acquires the voltage of each cell and transmits the voltage to a control module of the dust collector to judge whether the working state of each cell is normal in real time, and the control module controls whether a battery pack can be continuously charged; when discharging, the cell voltage acquisition module acquires the voltage of each cell, the cell voltage acquisition module is also connected with the sampling resistor through a power chip on the lithium battery pack, the discharging voltage of the battery pack is acquired through the sampling resistor, then the power chip is transmitted to the control module of the dust collector, the control module receives the voltage value and judges whether the battery pack works normally, and the control module controls whether the battery pack can continue to discharge;
therefore, the invention can form the organic integration of charging and discharging management, form the overvoltage protection in the charging and discharging process of the lithium battery, effectively prevent the lithium battery in the handheld dust collector from generating potential safety hazard, and further improve the service life of the lithium battery.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of an integrated lithium battery charging and discharging management system of a handheld vacuum cleaner according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As shown in fig. 1, the integrated lithium battery charging and discharging management system of a handheld vacuum cleaner provided in this embodiment includes a cell voltage acquisition module and a control module (specifically, an MCU control chip) on the vacuum cleaner;
when a lithium battery of the handheld dust collector is charged, the cell voltage acquisition module acquires the voltage of each cell and transmits the voltage to the control module to judge whether the working state of each cell is normal or not in real time, and the control module controls whether the battery pack can be continuously charged or not;
when the lithium battery of the handheld dust collector discharges, the battery cell voltage acquisition module acquires the voltage of each battery cell, the control module receives the voltage value and judges whether the work of the battery pack is normal or not, and the control module controls whether the battery pack can continue to discharge or not.
Specifically, the cell voltage acquisition module transmits data to the control module through I2C communication.
In the integrated lithium battery charging and discharging management system of the handheld dust collector provided by the embodiment, when charging is performed, the cell voltage acquisition module acquires the voltage of each cell and transmits the voltage to the control module of the dust collector to judge whether the working state of each cell is normal in real time, and the control module controls whether the battery pack can be continuously charged; when discharging, the cell voltage acquisition module acquires the voltage of each cell, the cell voltage acquisition module is also connected with the sampling resistor through a power chip on the lithium battery pack, the discharging voltage of the battery pack is acquired through the sampling resistor, then the power chip is transmitted to the control module of the dust collector, the control module receives the voltage value and judges whether the battery pack works normally, and the control module controls whether the battery pack can continue to discharge;
therefore, the embodiment can form organic integration of charging and discharging management, form overvoltage protection in the charging and discharging process of the lithium battery, effectively prevent the lithium battery in the handheld dust collector from generating potential safety hazards, and further prolong the service life of the lithium battery.
As shown in fig. 1, further, when the lithium battery of the handheld vacuum cleaner is charged, the control module determines that the voltage of a certain battery cell or the total voltage is abnormal, and the control module controls to close the charging loop, so that the battery pack stops charging.
Or the control module judges that the obtained cell voltage is abnormal, and the control module stops discharging of the battery pack through the power supply chip.
As shown in fig. 1, the integrated lithium battery charging and discharging management system of the handheld vacuum cleaner provided in this embodiment further includes a battery temperature acquisition module, when a lithium battery of the handheld vacuum cleaner discharges, the battery pack emits heat when discharging, the battery temperature acquisition module acquires a surface temperature of the battery pack, and when the surface temperature reaches a safe use temperature, the control module sends a power reduction instruction to a motor of the handheld vacuum cleaner, so as to reduce a discharging current of the battery pack;
when the control module judges that the surface temperature exceeds the safe use temperature, the control module stops the discharge of the battery pack through the power supply chip.
Therefore, the integrated lithium battery charging and discharging management system of the handheld dust collector provided by the embodiment can also provide synchronous over-temperature protection in the discharging process of the lithium battery pack, and the safety of the handheld dust collector is improved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. An integrated lithium battery charging and discharging management system of a handheld dust collector is characterized by comprising a battery cell voltage acquisition module and a control module;
when a lithium battery of the handheld dust collector is charged, the battery cell voltage acquisition module acquires the voltage of each battery cell and transmits the voltage to the control module to judge whether the working state of each battery cell is normal or not in real time, and the control module controls whether the battery pack can be continuously charged or not;
when the lithium battery of the handheld dust collector discharges, the battery cell voltage acquisition module acquires the voltage of each battery cell, the control module receives the voltage value and judges whether the battery pack works normally, and the control module controls whether the battery pack can continue to discharge.
2. The integrated lithium battery charging and discharging management system of the handheld dust collector as claimed in claim 1, wherein when the lithium battery of the handheld dust collector is charged, the control module determines that the voltage of a certain battery cell or the total voltage is abnormal, and the control module controls to close the charging loop, so that the battery pack stops charging.
3. The integrated lithium battery charging and discharging management system of the handheld vacuum cleaner as claimed in claim 1, wherein the control module determines that the cell voltage is abnormal, and the control module stops discharging of the battery pack through a power chip.
4. The integrated lithium battery charging and discharging management system of the handheld dust collector as claimed in claim 1, further comprising a battery temperature collection module, wherein when the lithium battery of the handheld dust collector discharges, the battery pack emits heat when discharging, the battery temperature collection module collects the surface temperature of the battery pack, and when the surface temperature reaches the safe use temperature, the control module sends a power reduction instruction to the motor of the handheld dust collector, so as to reduce the discharging current of the battery pack.
5. The system as claimed in claim 4, wherein when the control module determines that the surface temperature exceeds the safe-to-use temperature, the control module stops discharging the battery pack through a power chip.
6. The integrated lithium battery charging and discharging management system of the handheld vacuum cleaner as claimed in any one of claims 1 to 5, wherein the control module is an MCU control chip.
7. The integrated lithium battery charging and discharging management system of the handheld vacuum cleaner as claimed in claim 1, wherein the cell voltage acquisition module transmits data to the control module via I2C communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911422942.8A CN111049228A (en) | 2019-12-31 | 2019-12-31 | Integrated lithium battery charging and discharging management system of handheld dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911422942.8A CN111049228A (en) | 2019-12-31 | 2019-12-31 | Integrated lithium battery charging and discharging management system of handheld dust collector |
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| CN111049228A true CN111049228A (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911422942.8A Pending CN111049228A (en) | 2019-12-31 | 2019-12-31 | Integrated lithium battery charging and discharging management system of handheld dust collector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117533197A (en) * | 2023-11-29 | 2024-02-09 | 惠州市中源新能源有限公司 | Battery module for low-speed vehicle and BMS control method |
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| CN101034817A (en) * | 2007-04-06 | 2007-09-12 | 武汉昊诚能源科技有限公司 | Disposable 9V lithium battery security device |
| CN104055224A (en) * | 2014-06-09 | 2014-09-24 | 矽力杰半导体技术(杭州)有限公司 | Integrated circuit for electronic cigarette and electronic cigarette |
| CN104319841A (en) * | 2014-07-08 | 2015-01-28 | 北京鸿智电通科技有限公司 | Lithium battery charging management device |
| US20170187204A1 (en) * | 2015-12-24 | 2017-06-29 | Hangzhou Chic Intelligent Technology Co., Ltd | Battery management system for human-machine interaction vehicles |
| CN206742921U (en) * | 2017-05-24 | 2017-12-12 | 深圳市倍斯特科技股份有限公司 | A kind of charge and discharge device of portable power source |
-
2019
- 2019-12-31 CN CN201911422942.8A patent/CN111049228A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101034817A (en) * | 2007-04-06 | 2007-09-12 | 武汉昊诚能源科技有限公司 | Disposable 9V lithium battery security device |
| CN104055224A (en) * | 2014-06-09 | 2014-09-24 | 矽力杰半导体技术(杭州)有限公司 | Integrated circuit for electronic cigarette and electronic cigarette |
| CN104319841A (en) * | 2014-07-08 | 2015-01-28 | 北京鸿智电通科技有限公司 | Lithium battery charging management device |
| US20170187204A1 (en) * | 2015-12-24 | 2017-06-29 | Hangzhou Chic Intelligent Technology Co., Ltd | Battery management system for human-machine interaction vehicles |
| CN206742921U (en) * | 2017-05-24 | 2017-12-12 | 深圳市倍斯特科技股份有限公司 | A kind of charge and discharge device of portable power source |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117533197A (en) * | 2023-11-29 | 2024-02-09 | 惠州市中源新能源有限公司 | Battery module for low-speed vehicle and BMS control method |
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Application publication date: 20200421 |
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