CN205195352U - Electric tool's charging circuit based on USB interface - Google Patents
Electric tool's charging circuit based on USB interface Download PDFInfo
- Publication number
- CN205195352U CN205195352U CN201520982969.3U CN201520982969U CN205195352U CN 205195352 U CN205195352 U CN 205195352U CN 201520982969 U CN201520982969 U CN 201520982969U CN 205195352 U CN205195352 U CN 205195352U
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- Prior art keywords
- usb interface
- electric tool
- circuit
- charging
- charge management
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 5
- 229910052744 lithium Inorganic materials 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The utility model discloses a charge very conveniently and also do not influence normal use's electric tool's charging circuit based on USB interface when charging, include: charge management circuit and battery protection circuit, charge management circuit arrangement have a USB interface, the power end of USB interface and earthing terminal link to each other with the corresponding input that charges of charge management circuit respectively, the charge management circuit fill electrical output respectively with battery protection circuit corresponding charge the input and link to each other, the battery protection circuit fill electrical output with DC power supply's among the electric tool positive negative pole one -to -one links to each other. The utility model discloses can be applied to widely in various micro DC electric tool's the charger.
Description
Technical field
The utility model relates to a kind of charging circuit of electric tool, refers more particularly to a kind of charging circuit of USB interface-based electric tool.
Background technology
At present, traditional minisize dc electric tool, usually all adopt special charging adapter to charge to it, the input voltage of this charging adapter is generally the alternating current of 220V or 110V.As everyone knows, exchange and only have fixed-site just to have, therefore, could must charge at the fixed-site being provided with alternating current to minisize dc electric tool, it is very not convenient to use; And in charging process, minisize dc electric tool can not normally use usually.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of charge very convenient and charging time do not affect the charging circuit of the normal USB interface-based electric tool used yet.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of charging circuit of USB interface-based electric tool, comprise: charge management circuit and battery protecting circuit, described charge management circuit is provided with USB interface, the power end of USB interface is connected to the corresponding charging input end of charge management circuit respectively with earth terminal, the charging output of charge management circuit is connected to the corresponding charging input end of described battery protecting circuit respectively, the charging output of described battery protecting circuit is connected with the both positive and negative polarity one_to_one corresponding of the DC power supply in described electric tool.
As a kind of preferred version, in the charging circuit of described USB interface-based electric tool, be motor as the load of DC power supply in described electric tool, in the power input circuit of this motor, be provided with control switch.
As a kind of preferred version, in the charging circuit of described USB interface-based electric tool, described DC power supply is lithium battery.
The beneficial effects of the utility model are: when charging is required, can directly be inserted in the USB interface of various electric equipment, USB interface as subsidiary in the USB port of computer, mobile phone, the portable power source etc. with USB interface, and without the need to special charger, charge very convenient, and, when charging, corresponding electric tool can use as usual, improves the service efficiency of electric tool.
Accompanying drawing explanation
Fig. 1 is the block diagram of the charging circuit of USB interface-based electric tool described in the utility model.
Embodiment
Below in conjunction with accompanying drawing, describe the specific embodiments of the charging circuit of a kind of USB interface-based electric tool described in the utility model in detail:
As shown in Figure 1, the charging circuit of a kind of USB interface-based electric tool described in the utility model, comprise: charge management circuit and battery protecting circuit, described charge management circuit is provided with USB interface, the power end of USB interface is connected to the corresponding charging input end of charge management circuit respectively with earth terminal, that is: the power end (5 pin) of USB interface is connected with the positive charging input end of charge management circuit, the earth terminal (1 pin) of USB interface is connected with the negative charging input end of charge management circuit, the charging output of charge management circuit is connected to the corresponding charging input end of described battery protecting circuit respectively, the charging output of described battery protecting circuit is connected with the both positive and negative polarity one_to_one corresponding of the lithium battery as DC power supply in described electric tool.
During application, be motor as the load of lithium battery in described electric tool, in the power input circuit of this motor, be provided with control switch.
During actual use; outside 5V/1A DC power supply is linked into described charge management circuit (ChargeManagement) by USB interface, then charges to the lithium battery being used as DC power supply through battery protecting circuit (BatteryProtect).Now, if push switch (Switch), motor (Motor) still can normally work.
In sum, be only preferred embodiment of the present utility model, not be used for limit the utility model implement scope, all equalizations done according to shape, structure, feature and the spirit described in the utility model right change and modify, and all should be included in right of the present utility model.
Claims (3)
1. the charging circuit of a USB interface-based electric tool, comprise: charge management circuit, it is characterized in that: described charging circuit also includes: battery protecting circuit, described charge management circuit is provided with USB interface, the power end of USB interface is connected to the corresponding charging input end of charge management circuit respectively with earth terminal, the charging output of charge management circuit is connected to the corresponding charging input end of described battery protecting circuit respectively, the charging output of described battery protecting circuit is connected with the both positive and negative polarity one_to_one corresponding of the DC power supply in described electric tool.
2. the charging circuit of USB interface-based electric tool according to claim 1, is characterized in that: be motor as the load of DC power supply in described electric tool, be provided with control switch in the power input circuit of this motor.
3. the charging circuit of USB interface-based electric tool according to claim 1 and 2, is characterized in that: described DC power supply is lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520982969.3U CN205195352U (en) | 2015-12-02 | 2015-12-02 | Electric tool's charging circuit based on USB interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520982969.3U CN205195352U (en) | 2015-12-02 | 2015-12-02 | Electric tool's charging circuit based on USB interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205195352U true CN205195352U (en) | 2016-04-27 |
Family
ID=55788301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520982969.3U Active CN205195352U (en) | 2015-12-02 | 2015-12-02 | Electric tool's charging circuit based on USB interface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205195352U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105391127A (en) * | 2015-12-02 | 2016-03-09 | 苏州华之杰电讯有限公司 | Charging circuit of electric tool based on USB interface |
-
2015
- 2015-12-02 CN CN201520982969.3U patent/CN205195352U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105391127A (en) * | 2015-12-02 | 2016-03-09 | 苏州华之杰电讯有限公司 | Charging circuit of electric tool based on USB interface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Wuzhong District Suzhou City, Jiangsu Province town 215156 Suzhou Huazhijie Telecom Limited by Share Ltd Patentee after: Suzhou Huazhijie Telecom Limited by Share Ltd Address before: Wuzhong District Suzhou City, Jiangsu Province town 215100 Suzhou Huazhijie Telecom Co. Ltd. Patentee before: Suzhou Huazhijie Telecom Co., Ltd. |