CN201509092U - Charging device for electric tool - Google Patents
Charging device for electric tool Download PDFInfo
- Publication number
- CN201509092U CN201509092U CN2009201708981U CN200920170898U CN201509092U CN 201509092 U CN201509092 U CN 201509092U CN 2009201708981 U CN2009201708981 U CN 2009201708981U CN 200920170898 U CN200920170898 U CN 200920170898U CN 201509092 U CN201509092 U CN 201509092U
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- CN
- China
- Prior art keywords
- charging
- circuit
- electric tool
- mode
- control circuit
- 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.)
- Expired - Lifetime
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- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a charging device for an electric tool which comprises a power circuit, a PWM circuit and a charging control circuit. The charging control circuit comprises a control circuit with charging mode. The control circuit with charging mode connects with: a charging circuit with awake mode which works when the voltage is lower than a first threshold value; a charging circuit with constant-current mode which starts to work when the voltage built up to the first threshold value; a charging circuit with timer interruption mode which starts to work when the voltage reaches to a second threshold value; and a charging circuit with constant-voltage interruption mode which starts to work when the voltage reaches to a third threshold value in the charging state with timer interruption mode. The charging device for the electric tool can optimize the charging process to batteries.
Description
Technical field
The utility model relates to charging technique, relates in particular to a kind of charging device that is used for electric tool.
Background technology
At present, the charging device that is used for electric tool of prior art generally all has the charging process controlled function, yet these functions are all too simple, generally only only limit to charged state and two kinds of process control of charging completion status, the control that can not more optimize battery charging process particularly.
The utility model content
Technical problem to be solved in the utility model is: provide a kind of charging device that is used for electric tool, the control that this device can more be optimized battery charging process.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of charging device that is used for electric tool includes power circuit, pwm circuit and charging control circuit, and described charging control circuit includes charge mode control circuit, and described charge mode control circuit is connected with:
The awakening mode charging circuit of when voltage is lower than first threshold, working;
The constant current mode charging circuit of when voltage rises to first threshold, starting working;
The timing interrupt mode charging circuit of when voltage reaches second threshold value, starting working; And
Under timing interrupt mode charged state, the level pressure interrupt mode charging circuit of starting working when voltage reaches the 3rd threshold value.
The beneficial effects of the utility model are:
Embodiment of the present utility model passes through charging process is adopted the control of level pressure interrupt, thereby has optimized charging process.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Description of drawings
Fig. 1 is the circuit structure diagram of the embodiment of charging device that provides of the utility model.
Embodiment
With reference to figure 1, this figure is the circuit structure diagram of the embodiment of charging device that provides of the utility model; As shown in the figure, present embodiment mainly includes power circuit 1, pwm circuit 2, charging control circuit 3, and charging control circuit, and described charging control circuit 3 includes charge mode control circuit 30, and described charge mode control circuit 30 is connected with:
The awakening mode charging circuit 31 of when voltage is lower than first threshold, working;
The constant current mode charging circuit 32 of when voltage rises to first threshold, starting working;
The timing interrupt mode charging circuit 33 of when voltage reaches second threshold value, starting working; And
Under timing interrupt mode charged state, the level pressure interrupt mode charging circuit 34 of starting working when voltage reaches the 3rd threshold value.
During specific implementation, described first threshold can be set to 6V, and second threshold value can be set to 4.20V, and the 3rd threshold value can be set to 4.25V;
The charging current of described awakening mode charging circuit 31 can be 0.1A;
The charging current of described constant current mode charging circuit 32 can be 3A;
The time opening time of described timing interrupt mode charging circuit 33 is 0.5S, and regularly the shut-in time is 0.2S.
During specific implementation, when voltage arrives 4.25V, level pressure interrupt mode charging circuit 34 is promptly opened, when voltage reaches 4.25V, close, treat that voltage drops to 4.25V after, restart when voltage reaches 4.25V once more, close ... so circulation, up to the shut-in time greater than 2S, then charging is finished.
During specific implementation, power circuit 1 can adopt the single-ended reverse exciting topological structure, it includes input filter rectification unit 11, power conversion unit 12, output filter rectification unit 13 and the charging control switch 14 that connects successively, and described power conversion unit 12 also is connected with an auxiliary power unit 15.
In addition, charging control circuit 3 also includes battery size detecting unit 35, cell voltage monitor unit 36, charging current monitor unit 37, battery temperature monitor unit 38 and charge mode control unit 39.
In addition, charging control circuit 3 also can be connected with display driver circuit 4 display driver circuits 4 and then be connected with a plurality of battery capacity display unit 5.
During specific implementation, battery capacity display unit 5 can adopt LED, and LED quantity is provided with 4 for good, 25%, 50%, 75% and 100% capacity status of the corresponding battery of difference when each LED is bright.Described 4 LED lamps have shown 4 different conditions of battery in charging process simple and clearly, can make the user more easily charging process be held and control.
The utility model can provide the control of more optimizing to the charging process of battery, is applicable to the charging of various electric tools.
The above is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also are considered as protection range of the present utility model.
Claims (8)
1. a charging device that is used for electric tool includes power circuit, pwm circuit and charging control circuit, and described charging control circuit includes charge mode control circuit, it is characterized in that, described charge mode control circuit is connected with:
The awakening mode charging circuit of when voltage is lower than first threshold, working;
The constant current mode charging circuit of when voltage rises to first threshold, starting working;
The timing interrupt mode charging circuit of when voltage reaches second threshold value, starting working; And
Under timing interrupt mode charged state, the level pressure interrupt mode charging circuit of starting working when voltage reaches the 3rd threshold value.
2. the charging device that is used for electric tool as claimed in claim 1 is characterized in that, described first threshold is 6V, and second threshold value is 4.20V, and the 3rd threshold value is 4.25V.
3. the charging device that is used for electric tool as claimed in claim 1 or 2 is characterized in that, the time opening time of described timing interrupt mode charging circuit is 0.5S, and regularly the shut-in time is 0.2S.
4. the charging device that is used for electric tool as claimed in claim 1 or 2 is characterized in that, the charging current of described awakening mode charging circuit is 0.1A.
5. the charging device that is used for electric tool as claimed in claim 1 or 2 is characterized in that, the charging current of described constant current mode charging circuit is 3A.
6. the charging device that is used for electric tool as claimed in claim 1 or 2, it is characterized in that described charging control circuit also includes battery size detecting unit, cell voltage monitor unit, charging current monitor unit, battery temperature monitor unit, battery capacity monitor unit.
7. the charging device that is used for electric tool as claimed in claim 6 is characterized in that, described charging control circuit is connected with the described display driver circuit of display driver circuit and then is connected with a plurality of battery capacity display unit.
8. the charging device that is used for electric tool as claimed in claim 1 or 2, it is characterized in that, described power circuit is the single-ended reverse exciting topological structure, it includes input filter rectification unit, power conversion unit, output filter rectification unit and the charging control switch that connects successively, and described power conversion unit also is connected with an auxiliary power unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201708981U CN201509092U (en) | 2009-08-10 | 2009-08-10 | Charging device for electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201708981U CN201509092U (en) | 2009-08-10 | 2009-08-10 | Charging device for electric tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201509092U true CN201509092U (en) | 2010-06-16 |
Family
ID=42470214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201708981U Expired - Lifetime CN201509092U (en) | 2009-08-10 | 2009-08-10 | Charging device for electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201509092U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887570A (en) * | 2012-12-21 | 2014-06-25 | 联想(北京)有限公司 | Power supply management method, power supply management system and electronic device |
| CN105356544A (en) * | 2015-11-27 | 2016-02-24 | 山东超越数控电子有限公司 | Portable notebook battery stand charger device based on EC |
-
2009
- 2009-08-10 CN CN2009201708981U patent/CN201509092U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887570A (en) * | 2012-12-21 | 2014-06-25 | 联想(北京)有限公司 | Power supply management method, power supply management system and electronic device |
| CN103887570B (en) * | 2012-12-21 | 2016-03-02 | 联想(北京)有限公司 | A kind of method for managing power supply, power-supply management system and electronic equipment |
| CN105356544A (en) * | 2015-11-27 | 2016-02-24 | 山东超越数控电子有限公司 | Portable notebook battery stand charger device based on EC |
| CN105356544B (en) * | 2015-11-27 | 2017-12-26 | 山东超越数控电子有限公司 | A kind of portable notebook battery holder charging device based on EC controllers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170217 Address after: The United Kingdom of Great Britain and Northern Ireland Northern Ireland 8 District Cardiff CF15 Reed Joyce Ge Road No. 29 Patentee after: Martin Morgan Venad Address before: Hongkong China Tsuen Wan Chai Wan Kok Street No. 35-45 Yufeng Arts crafts emporium, 7 floor room 6B Patentee before: Raton Technology Development Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100616 |