CN214380256U - Control circuit system of portable electric tool - Google Patents
Control circuit system of portable electric tool Download PDFInfo
- Publication number
- CN214380256U CN214380256U CN202120726993.6U CN202120726993U CN214380256U CN 214380256 U CN214380256 U CN 214380256U CN 202120726993 U CN202120726993 U CN 202120726993U CN 214380256 U CN214380256 U CN 214380256U
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- Prior art keywords
- main control
- control board
- chip
- control circuit
- circuit
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- 230000010354 integration Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 235000021168 barbecue Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
本实用新型公开了一种便携式电动工具的控制电路系统，包括主控板，所述主控板上设置有IC芯片，还包括与IC芯片连接的NMOS管，所述主控板上还设置有电阻，所述主控板上设置有CH+和CH‑，所述CH+和CH‑与充电输入接口连接，所述主控板上还设置有B‑、B1和B+，所述B‑、B1和B+分别与电池卡槽正极、两电池中间接点、负极规范连接，所述主控板上还设置有M+和M‑，使用IC芯片管理控制电路，时通过NMOS管实现电路相对应控制，同时具备过充，过放，过流保护功能，从而能有效避免电池的损坏和燃烧，采用充/放高度集成的单芯片方案，电路清晰简单；本实用新型的充电输入正、负极连接器分别与控制电路板上CB+、CB‑连接，工艺精简，具有极大的进步。
The utility model discloses a control circuit system of a portable electric tool, which comprises a main control board, an IC chip is arranged on the main control board, and an NMOS tube connected with the IC chip is further arranged on the main control board. Resistors, CH+ and CH- are provided on the main control board, and the CH+ and CH- are connected to the charging input interface, and B-, B1 and B+ are also provided on the main control board, and the B-, B1 and B+ is respectively connected with the positive pole of the battery card slot, the intermediate point between the two batteries, and the negative pole. The main control board is also provided with M+ and M‑. The IC chip is used to manage the control circuit, and the corresponding control of the circuit is realized through the NMOS tube. Overcharge, overdischarge, and overcurrent protection functions, which can effectively avoid battery damage and burning, adopt a single-chip solution with high charge/discharge integration, and the circuit is clear and simple; CB+ and CB‑ connections on the circuit board, the process is simplified and has great progress.
Description
Technical Field
The utility model relates to a portable electric tool control technical field specifically is a portable electric tool's control circuit system.
Background
Portable electric tools, such as portable electric cleaning tools (applicant's patent No. 2020229952278, title: a portable waterproof electric cleaning tool), outdoor barbecue guns, water guns, etc., are generally used outdoors and require batteries, and the batteries generally include:
1) the disposable alkaline battery is discarded after being used up, so that great waste is caused to social resources and serious pollution is caused to the environment, and meanwhile, the battery needs to be replaced frequently, which causes inconvenience to product designers and users;
2) the lithium battery which is recycled is adopted, repeated charging and discharging are needed, the traditional charging circuit system directly charges the lithium battery, overcharge and overdischarge of the lithium battery cell are easily caused, overcharge can cause the temperature and the internal pressure of the battery to be increased sharply, and potential hazards such as explosion and combustion exist. Overdischarge leads to an increase in the cell resistance and also to a significant capacity fade.
There is an urgent need for a control circuit system for a portable power tool that can solve the above problems.
Disclosure of Invention
An object of the utility model is to provide a portable electric tool's control circuit system to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a control circuit system of portable electric tool, includes the main control board, be provided with the IC chip on the main control board, still include the NMOS pipe of being connected with the IC chip, still be provided with resistance on the main control board, be provided with CH + and CH-on the main control board, CH + and CH-and the input interface connection that charges, still be provided with B-, B1 and B +, B-, B1 and B + are connected with battery card groove positive pole, two battery intermediate junction, negative pole specification respectively, still be provided with M + and M-on the main control board, M + and M-are connected respectively at the both ends of motor.
As a further aspect of the present invention: the main control panel is also provided with a button switch.
As a further aspect of the present invention: the main control board is communicated with the outside by a DC-0044 interface.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model uses the IC chip management control circuit, realizes the corresponding control of the circuit through the NMOS tube, and has the functions of overcharge, overdischarge and overcurrent protection at the same time, thereby effectively avoiding the damage and burning of the battery, and adopts the single chip scheme of charging/discharging high integration, and the circuit is clear and simple; the utility model discloses a charge input just, negative pole connector is connected with CB +, CB-on the control circuit board respectively, and the technology is retrencied, has very big progress.
Drawings
Fig. 1 is a schematic diagram of a control circuit system of a portable electric tool.
Fig. 2 is a back structural diagram of a control circuit system of the portable electric tool.
Fig. 3 is a schematic diagram of the control circuitry of the portable power tool.
In the figure: 1-IC chip, 2-CH +, 3-CH-, 4-NMOS tube, 5-resistor, 6-B-, 7-B1, 8-button switch, 9-B +, 10-M +, 11-M-.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 3, in an embodiment of the present invention, a control circuit system of a portable electric tool includes a main control board, the main control board is provided with an IC chip 1, the IC chip 1 controls a circuit to charge or discharge a battery, the control circuit system further includes an NMOS tube 4 connected to the IC chip 1, the NMOS tube 4 directly controls circuit protection and disconnection, the main control board is further provided with a resistor 5, the resistor 5 is further disposed to improve circuit safety, the main control board is provided with CH +2 and CH-3, the CH +2 and CH-3 are connected to a charging input interface, the main control board is further provided with B-6, B17 and B +9, the B-6, B17 and B +9 are respectively connected to a positive electrode of a battery card slot, a middle contact of two batteries, and a negative electrode standard, the main control board is further provided with M +10 and M-11, the M +10 and the M-11 are respectively connected to two ends of the motor, a button switch 8 is further arranged on the main control board, and the start and stop of the equipment are controlled through the button switch 8.
Preferably, the main control board is communicated with the outside by adopting a DC-0044 interface.
The utility model discloses a theory of operation is: designing a special charging input interface to be connected with leads at CH +2 and CH-3 ends of the main control circuit board according to a standard; b +9, B17 and B-6 on the circuit board are respectively and regularly connected with the positive pole of the battery card slot, the intermediate contact of the two batteries and the negative pole; m +10, M-11 are connected respectively at the motor both ends on the circuit board, and IC chip 1 direct mount manages the circuit protection disconnection through NMOS pipe 4 direct, adopt general DC-0044 interface simultaneously, and button switch 8 direct mount is at the control panel, the utility model discloses use IC chip 1 control circuit management battery to charge, discharge, at this in-process, can cross charge, cross discharge, overcurrent protection.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (3)
1. The utility model provides a control circuit system of portable electric tool, its characterized in that, includes the main control board, be provided with the IC chip on the main control board, still include the NMOS pipe of being connected with the IC chip, still be provided with resistance on the main control board, be provided with CH + and CH-on the main control board, CH + and CH-and the input interface connection that charges, still be provided with B-, B1 and B +, B-, B1 and B + are connected with battery card slot positive pole, two battery intermediate junction, negative pole specification respectively, still be provided with M + and M-on the main control board, M + and M-are connected respectively at the both ends of motor.
2. The control circuitry of the portable power tool as claimed in claim 1, wherein the main control board further comprises a button switch.
3. The control circuitry of the portable power tool as claimed in claim 1, wherein the main control board is connected to the outside using a DC-0044 interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120726993.6U CN214380256U (en) | 2021-04-11 | 2021-04-11 | Control circuit system of portable electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120726993.6U CN214380256U (en) | 2021-04-11 | 2021-04-11 | Control circuit system of portable electric tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214380256U true CN214380256U (en) | 2021-10-08 |
Family
ID=77974110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120726993.6U Expired - Fee Related CN214380256U (en) | 2021-04-11 | 2021-04-11 | Control circuit system of portable electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214380256U (en) |
-
2021
- 2021-04-11 CN CN202120726993.6U patent/CN214380256U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211008 |