CN111162334A - One-charging-two type lithium battery pack charging method for handheld dust collector - Google Patents
One-charging-two type lithium battery pack charging method for handheld dust collector Download PDFInfo
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- CN111162334A CN111162334A CN201911422820.9A CN201911422820A CN111162334A CN 111162334 A CN111162334 A CN 111162334A CN 201911422820 A CN201911422820 A CN 201911422820A CN 111162334 A CN111162334 A CN 111162334A
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- lithium battery
- battery pack
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- voltage
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/446—Initial charging measures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
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- H02J7/50—
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
本发明提供了一种手持式吸尘器的一充二式锂电池包充电方法，其中，第一锂电池包的采样电阻采集每个第一锂电池包的电压值，同时第二锂电池包的采样电阻采集每个第二锂电池包的电压值，当第一锂电池包的电压值低于第二锂电池包的电压值时，电源适配器的充电电压自动匹配第一锂电池包的电压值并继续给第一锂电池包充电；与此同时，第二锂电池包的电源芯片检测到电源适配器的当前充电电压低于第二锂电池包的实际电压值时，第二锂电池包的充电阀门自动关闭，第二锂电池包此时不进行充电。本发明只使用一个电源适配器就可以实现给两个电池包充电，既减少了空间占用，还减少了成本。
The present invention provides a charging method for a one-charge two-type lithium battery pack for a handheld vacuum cleaner, wherein the sampling resistance of the first lithium battery pack collects the voltage value of each first lithium battery pack, while the sampling resistance of the second lithium battery pack The resistor collects the voltage value of each second lithium battery pack. When the voltage value of the first lithium battery pack is lower than the voltage value of the second lithium battery pack, the charging voltage of the power adapter automatically matches the voltage value of the first lithium battery pack and Continue to charge the first lithium battery pack; at the same time, when the power chip of the second lithium battery pack detects that the current charging voltage of the power adapter is lower than the actual voltage value of the second lithium battery pack, the charging valve of the second lithium battery pack Automatically shut down, the second lithium battery pack will not be charged at this time. In the present invention, only one power adapter can be used to charge two battery packs, which not only reduces the space occupation but also reduces the cost.
Description
Technical Field
The invention relates to a lithium battery pack charging method, in particular to a one-charging-two type lithium battery pack charging method of a handheld dust collector.
Background
With the demand of people on quality of life becoming higher and higher, more and more science and technology products are integrated into our life, like smart phone, intelligent closestool, mobile mop and dust catcher all become the necessary articles for daily use in our life, and handheld dust catcher is a new emerging dust catcher product.
Most of the existing handheld dust collectors are powered by lithium batteries, the endurance problem is most concerned by the lithium battery power supply, and the endurance time of one lithium battery cannot meet the requirement of a user, so that the user needs to be met by two lithium battery packs, and how to charge the two lithium battery packs together can be a problem. At present, a dust collector also adopts a technology of charging two lithium battery packs, but the technology of the dust collector charges the two lithium battery packs by using two power adapters, so that the cost is increased, and the space occupation of the dust collector is increased.
Disclosure of Invention
In view of the above, the invention provides a method for charging two lithium battery packs of a handheld dust collector, which can be organically integrated with elements in the handheld dust collector, and can realize charging of the two battery packs by using only one power adapter, thereby reducing the space occupation and the cost, and enabling the user experience to be more satisfied.
Therefore, the invention provides a one-charging-two type lithium battery pack charging method of a handheld dust collector, which comprises the following steps:
1) simultaneously electrically connecting the first lithium battery pack and the second lithium battery pack to a charging base, electrically connecting the charging base to a power adapter, and connecting the power adapter to a power supply;
2) the power chip of the first lithium battery pack and the power chip of the second lithium battery pack simultaneously detect the initial charging voltage of the power adapter, when the set voltage is reached, the power chip of the first lithium battery pack controls to open the charging valve of the first lithium battery pack to conduct the power supply and the first lithium battery pack, the power chip of the second lithium battery pack controls to open the charging valve of the second lithium battery pack to conduct the power supply and the second lithium battery pack, and the first lithium battery pack and the second lithium battery pack start to be charged simultaneously;
3) the sampling resistor of the first lithium battery pack collects the voltage value of each first lithium battery pack, the sampling resistor of the second lithium battery pack collects the voltage value of each second lithium battery pack, and when the voltage value of the first lithium battery pack is lower than that of the second lithium battery pack, the charging voltage of the power adapter automatically matches the voltage value of the first lithium battery pack and continues to charge the first lithium battery pack; meanwhile, when the power chip of the second lithium battery pack detects that the current charging voltage of the power adapter is lower than the actual voltage value of the second lithium battery pack, the charging valve of the second lithium battery pack is automatically closed, and the second lithium battery pack is not charged at the moment;
4) after the first lithium battery pack is charged, the current voltage of the first lithium battery pack is higher than that of the second lithium battery pack, at the moment, according to the step of the step 3), the second lithium battery pack starts to be charged, and the first lithium battery pack does not charge.
Further, in the step 2), the first lithium battery pack and the second lithium battery pack start to be charged simultaneously for 3 to 6 seconds, and then the step 3) is performed.
Further, the power supply chip of the first lithium battery pack is an MCU control chip.
Further, the power supply chip of the second lithium battery pack is an MCU control chip.
Further, the initial charging voltage of the power adapter is 29V-31V.
Further, the charging valve of the first lithium battery pack is an MOS transistor.
Further, the charging valve of the second lithium battery pack is an MOS transistor.
The invention provides a one-charge two-lithium battery pack charging method of a handheld dust collector, which can form organic integration with elements in the handheld dust collector, and can realize charging of two lithium battery packs by using only one power adapter; meanwhile, when the power supply chip of the second lithium battery pack detects that the current charging voltage of the power supply adapter is lower than the actual voltage value of the second lithium battery pack, the power supply chip immediately controls the charging valve of the second lithium battery pack to be automatically closed, and the second lithium battery pack does not charge at the moment; after the first lithium battery pack is charged, the current voltage of the first lithium battery pack is higher than the current voltage of the second lithium battery pack, according to the steps, the second lithium battery pack starts to be charged, and the first lithium battery pack does not charge;
therefore, compared with the prior art, the invention can realize the technical effect that one power adapter can charge two lithium battery packs simultaneously, and after the method of the invention is adopted, uninterrupted rapid charging is formed between the two lithium battery packs, so that the charging efficiency can be effectively improved, and simultaneously, one power adapter is saved, thereby reducing the space expansion, reducing the cost and ensuring the user experience to be more satisfied.
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 system architecture diagram related to a charging method for a two-charging lithium battery pack 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 method for charging a two-charging lithium battery pack of a handheld vacuum cleaner provided in this embodiment includes the following steps:
s1: the first lithium battery pack and the second lithium battery pack are electrically connected to the charging base at the same time, the charging base is electrically connected with a power adapter, and the power adapter is connected with a power supply (particularly, commercial power);
s2: the power chip of the first lithium battery pack and the power chip of the second lithium battery pack simultaneously detect the initial charging voltage (29V-31V) of the power adapter, when the set voltage is reached, the power chip of the first lithium battery pack controls to open the charging valve of the first lithium battery pack to conduct the power supply and the first lithium battery pack, the power chip of the second lithium battery pack controls to open the charging valve of the second lithium battery pack to conduct the power supply and the second lithium battery pack, and the first lithium battery pack and the second lithium battery pack start to be charged for 3-6 seconds simultaneously;
s3: the method comprises the following steps that a sampling resistor of a first lithium battery pack collects a voltage value of the first lithium battery pack, a sampling resistor of a second lithium battery pack collects a voltage value of the second lithium battery pack, and when the voltage value of the first lithium battery pack is lower than the voltage value of the second lithium battery pack, the charging voltage of a power adapter automatically matches the voltage value of the first lithium battery pack and continues to charge the first lithium battery pack; meanwhile, when the power chip of the second lithium battery pack detects that the current charging voltage of the power adapter is lower than the actual voltage value of the second lithium battery pack, the charging valve of the second lithium battery pack is automatically closed, and the second lithium battery pack is not charged at the moment;
s4: after the first lithium battery pack is charged, the current voltage of the first lithium battery pack is higher than the current voltage of the second lithium battery pack, at this time, according to the step of step S3, the second lithium battery pack starts to be charged, and the first lithium battery pack does not charge.
The power supply chip of the first lithium battery pack can be specifically an MCU control chip, and the power supply chip of the second lithium battery pack can be specifically an MCU control chip.
The charging valve of the first lithium battery pack can be an MOS (metal oxide semiconductor) tube, and the charging valve of the second lithium battery pack can be an MOS tube.
The specific principle is that the sampling resistor of the first lithium battery pack collects the voltage value of the first lithium battery pack, the sampling resistor of the second lithium battery pack collects the voltage value of the second lithium battery pack, and when the voltage value of the first lithium battery pack is lower than that of the second lithium battery pack, the power adapter automatically matches a lower voltage value, so that the charging voltage of the power adapter automatically matches the voltage value of the first lithium battery pack and continues to charge the first lithium battery pack; meanwhile, when the power supply chip of the second lithium battery pack detects that the current charging voltage of the power supply adapter is lower than the actual voltage value of the second lithium battery pack, the power supply chip immediately controls the charging valve of the second lithium battery pack to be automatically closed, and the second lithium battery pack does not charge at the moment; after the first lithium battery pack is charged, the current voltage of the first lithium battery pack is higher than the current voltage of the second lithium battery pack, according to the steps, the second lithium battery pack starts to be charged, and the first lithium battery pack does not charge;
therefore, compared with the prior art, the technical effect that one power adapter can charge two lithium battery packs simultaneously can be achieved, and after the method provided by the invention is adopted, uninterrupted rapid charging is formed between the two lithium battery packs, so that the charging efficiency can be effectively improved, one power adapter is saved, the space expansion is reduced, the cost is reduced, and the user experience is more satisfied.
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. A one-charging-two type lithium battery pack charging method of a handheld dust collector is characterized by comprising the following steps:
1) simultaneously electrically connecting the first lithium battery pack and the second lithium battery pack to a charging base, electrically connecting the charging base to a power adapter, and connecting the power adapter to a power supply;
2) the power chip of the first lithium battery pack and the power chip of the second lithium battery pack simultaneously detect the initial charging voltage of the power adapter, when the initial charging voltage reaches a set voltage, the power chip of the first lithium battery pack controls to open a charging valve of the first lithium battery pack to conduct a power supply and the first lithium battery pack, the power chip of the second lithium battery pack controls to open a charging valve of the second lithium battery pack to conduct a power supply and the second lithium battery pack, and the first lithium battery pack and the second lithium battery pack start to be charged simultaneously;
3) the sampling resistor of the first lithium battery pack collects the voltage value of the first lithium battery pack, the sampling resistor of the second lithium battery pack collects the voltage value of the second lithium battery pack, and when the voltage value of the first lithium battery pack is lower than the voltage value of the second lithium battery pack, the charging voltage of the power adapter automatically matches the voltage value of the first lithium battery pack and continues to charge the first lithium battery pack; meanwhile, when the power chip of the second lithium battery pack detects that the current charging voltage of the power adapter is lower than the actual voltage value of the second lithium battery pack, the charging valve of the second lithium battery pack is automatically closed, and the second lithium battery pack is not charged at the moment;
4) after the first lithium battery pack is charged, the current voltage of the first lithium battery pack is higher than the current voltage of the second lithium battery pack, at this time, according to the step of the step 3), the second lithium battery pack starts to be charged, and the first lithium battery pack does not charge.
2. The method as claimed in claim 1, wherein the step 2) is performed after the first lithium battery pack and the second lithium battery pack start to be charged simultaneously for 3-6 seconds, and the step 3) is performed.
3. The method as claimed in claim 1, wherein the power chip of the first lithium battery pack is an MCU control chip.
4. The method as claimed in claim 1, wherein the power chip of the second lithium battery pack is an MCU control chip.
5. The method as claimed in claim 1, wherein the initial charging voltage of the power adapter is 29V-31V.
6. The method as claimed in claim 1, wherein the charging valve of the first lithium battery pack is a MOS transistor.
7. The method as claimed in claim 1, wherein the charging valve of the second lithium battery pack is a MOS transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911422820.9A CN111162334B (en) | 2019-12-31 | 2019-12-31 | One-charging-two type lithium battery pack charging method for handheld dust collector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911422820.9A CN111162334B (en) | 2019-12-31 | 2019-12-31 | One-charging-two type lithium battery pack charging method for handheld dust collector |
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| CN111162334A true CN111162334A (en) | 2020-05-15 |
| CN111162334B CN111162334B (en) | 2021-11-19 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002034874A (en) * | 2000-07-27 | 2002-02-05 | Sanyo Electric Co Ltd | Charging type electric vacuum cleaner |
| CN104852447A (en) * | 2015-05-26 | 2015-08-19 | 苏州宝时得电动工具有限公司 | System and method for charging battery pack |
| CN107196382A (en) * | 2017-07-21 | 2017-09-22 | 江苏美的清洁电器股份有限公司 | Charger and its control method for dust catcher |
| CN208299504U (en) * | 2018-07-02 | 2018-12-28 | 小狗电器互联网科技（北京）股份有限公司 | Charging structure bracket and dust collecting system |
-
2019
- 2019-12-31 CN CN201911422820.9A patent/CN111162334B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002034874A (en) * | 2000-07-27 | 2002-02-05 | Sanyo Electric Co Ltd | Charging type electric vacuum cleaner |
| CN104852447A (en) * | 2015-05-26 | 2015-08-19 | 苏州宝时得电动工具有限公司 | System and method for charging battery pack |
| CN107196382A (en) * | 2017-07-21 | 2017-09-22 | 江苏美的清洁电器股份有限公司 | Charger and its control method for dust catcher |
| CN208299504U (en) * | 2018-07-02 | 2018-12-28 | 小狗电器互联网科技（北京）股份有限公司 | Charging structure bracket and dust collecting system |
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| CN111162334B (en) | 2021-11-19 |
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