CN212784795U - Multi-voltage battery pack management control device - Google Patents
Multi-voltage battery pack management control device Download PDFInfo
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- CN212784795U CN212784795U CN202020631604.7U CN202020631604U CN212784795U CN 212784795 U CN212784795 U CN 212784795U CN 202020631604 U CN202020631604 U CN 202020631604U CN 212784795 U CN212784795 U CN 212784795U
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Abstract
The utility model relates to a multi-voltage battery pack management control device, which belongs to the technical field of circuit control management, and comprises a control chip, a battery pack and a charging and discharging platform, wherein the battery comprises a battery pack, the battery pack comprises a charging and discharging interface B-, an electronic switch is arranged between the battery pack and the charging and discharging interface B-, the electronic switch is connected with the control chip, an AD sampling interface is arranged on the control chip, and the charging and discharging platform comprises a charging loop, a first discharging loop and a second discharging loop; the utility model has the advantages that: the electronic switch is arranged between the battery pack and the charging and discharging interface B-, and the disconnection and the connection of the battery pack are controlled by the control chip, so that the charging and discharging balance of the battery pack in the battery pack can be realized, and if the voltage difference existing when the battery pack is directly discharged is greater than a certain specific value, the electronic switch is disconnected, the battery pack cannot discharge, and the battery pack can be discharged for use after the charging balance of the battery pack is needed.
Description
Technical Field
The utility model relates to a circuit control manages technical field, concretely relates to multi-voltage battery package supervisory control.
Background
In the charging process of the existing battery pack, two battery packs in one battery pack are connected in series or in parallel through an external mechanical structure, and the battery packs have internal resistance difference due to the difference of manufacturing processes, the difference of chemical components and the like. If the pressure difference of the two battery packs is large, the external mechanical structure adopts a parallel connection mode, the high-voltage battery pack can carry out large-current charging on the low-voltage battery pack under the condition, unpredictable damage is caused to the battery pack, the performance of the battery pack is influenced, the service life of the battery is shortened, and potential safety hazards can exist in the serious situation.
SUMMERY OF THE UTILITY MODEL
The utility model aims to reach the purpose provide a multivoltage battery package supervisory control, can realize the equalizing charge of every group battery, improve the life of battery.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme: a multi-voltage battery pack management control device comprises a control chip, a battery pack and a charging and discharging platform, the charging and discharging platform comprises a battery, wherein the battery comprises at least two battery packs, each battery pack comprises a charging and discharging interface B & lt- & gt and a charging and discharging interface B & lt + & gt, the negative electrode of the second group of battery packs is connected with the charge-discharge interface B + of the first group of battery packs, the positive electrode of the second group of battery packs is connected with the charge-discharge interface B-of the first group of battery packs, an electronic switch is arranged between the negative electrode of each group of battery packs and the charge-discharge interface B-, the electronic switch is connected with the control chip, an AD sampling interface for detecting the voltage of each battery pack is arranged on the control chip, the charging and discharging platform comprises a charging loop, a first discharging loop and a second discharging loop, the battery pack is connected to the charging loop in parallel, and the battery pack is connected to the first discharging loop in series or connected to the second discharging loop in parallel.
Preferably, the electronic switch is an MOS transistor, a source electrode of the MOS transistor is connected to a negative electrode of the battery pack, a drain electrode of the MOS transistor is connected to the charge-discharge interface B-, and a gate electrode of the MOS transistor is connected to the control chip.
Preferably, the battery comprises two groups of battery packs, the charging loop comprises an 18V power supply, a charging socket C + and a charging socket C-, the negative electrode of the 18V power supply is respectively connected with a charging and discharging interface B-of the battery pack, and the positive electrode of the 18V power supply is respectively connected with a charging and discharging interface B + of the battery pack.
Preferably, the first discharging loop comprises a 36VDC tool, a first discharging socket P + and a first discharging socket P-, the negative pole of the 36VDC tool is connected with the first discharging socket P-, the positive pole of the 36VDC tool is connected with the first discharging socket P +, the first discharging socket P-is connected with a discharging interface B-of the first group of battery packs, the first discharging socket P + is connected with a discharging interface B + of the second group of battery packs, and the discharging interface B + of the first group of battery packs is connected with a discharging interface B-of the second group of battery packs.
Preferably, the second discharging loop comprises an 18VDC tool, a second discharging socket P + and a second discharging socket P-, the negative electrode of the 18VDC tool is connected with the second discharging socket P-, the positive electrode of the 18VDC tool is connected with the second discharging socket P +, the second discharging socket P-is respectively connected with the discharging interfaces B-of the two groups of battery packs, and the second discharging socket P + is respectively connected with the discharging interfaces B + of the two groups of battery packs.
To sum up, the utility model has the advantages that: the electronic switch is arranged between the battery pack and the charging and discharging interface B-, and the disconnection and the connection of the battery pack are controlled by the control chip, so that the charging and discharging balance of the battery pack in the battery pack can be realized, and if the voltage difference existing when the battery pack is directly discharged is greater than a certain specific value, the electronic switch is disconnected, the battery pack cannot discharge, and the battery pack can be discharged for use after the charging balance of the battery pack is required; if one battery pack is charged and then the other battery pack is charged, the battery packs can be circularly charged, the equalizing charge of the battery packs is ensured, the voltage of each independent battery pack is consistent, the safety of a product is improved, secondly, the charging and discharging platform is set into a first discharging loop and a second discharging loop, the battery packs are connected in series on the first discharging loop or connected in parallel on the second discharging loop, the sharing of a plurality of discharging loops is realized, the practical performance is improved, finally, an AD sampling interface is arranged on the control chip, when the battery pack is discharged, the voltage of each battery pack can be detected through the AD sampling interface, when the battery pack is used, if the voltage difference is detected to be larger than the set value, the control chip controls the electronic switch to be switched off, the battery pack is not allowed to be discharged, the battery pack can be discharged after the equalizing charge is needed, and after the unbalanced battery packs are connected in parallel, the battery packs are charged by large current, so that potential safety hazards are caused.
Other features and advantages of the present invention will be disclosed in more detail in the following detailed description and the accompanying drawings.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
fig. 1 is a circuit diagram of the multi-voltage battery pack management control device of the present invention, in which the battery pack is connected in parallel to the charging circuit;
fig. 2 is a circuit diagram of the multi-voltage battery pack management control device of the present invention, in which the battery pack is connected in series to the first discharge loop;
fig. 3 is a circuit diagram of the battery pack of the medium-voltage battery pack management and control device of the present invention connected in parallel to the second discharge loop;
fig. 4 is a schematic structural diagram of the middle charging platform of the present invention.
Reference numerals:
the device comprises a control chip 1, an AD sampling interface 11, a battery pack 2, a battery pack 21, a charging platform 3, a charging loop 31, a first discharging loop 32, a second discharging loop 33 and an electronic switch 4.
Detailed Description
As shown in fig. 1, fig. 2, fig. 3, and fig. 4, a multi-voltage battery pack management control device includes a control chip 1, a battery pack 2, and a charging/discharging platform 3, where the charging/discharging platform 3 includes the battery pack 2 including at least two battery packs 21, each battery pack 21 includes a charging/discharging interface B-and a charging/discharging interface B +, a negative electrode of the second battery pack 21 is connected to the charging/discharging interface B + of the first battery pack 21, a positive electrode of the second battery pack 21 is connected to the charging/discharging interface B-of the first battery pack, an electronic switch 4 is disposed between the negative electrode of each battery pack 21 and the charging/discharging interface B-, the electronic switch 4 is connected to the control chip 1, an AD sampling interface 11 for detecting a voltage of each battery pack 21 is disposed on the control chip 1, the charging/discharging platform 3 includes a charging loop 31, a first discharging loop 32, and a second discharging loop 33, the battery pack 21 is connected in parallel to the charging circuit 31, and the battery pack 21 is connected in series to the first discharging circuit 32 or connected in parallel to the second discharging circuit 33.
The electronic switch 4 is arranged between the battery pack 21 and the charging and discharging interface B-, and the disconnection and the connection of the electronic switch 4 are controlled by the control chip 1, so that the charging and discharging balance of the battery pack 21 in the battery pack 2 can be realized, and if the voltage difference existing when the battery pack 21 is directly discharged is greater than a certain specific value, the electronic switch 4 is disconnected, the battery pack 2 cannot discharge, and the battery pack 21 can be discharged for use after being charged and balanced; if one of the battery packs 21 is charged, the other battery pack 21 is charged, the battery packs 21 can be circularly charged, the equalizing charge of the battery packs 21 is ensured, the voltage of each independent battery pack 21 is consistent, the safety of the product is improved, secondly, the charging and discharging platform 3 is set into a first discharging loop and a second discharging loop, the battery packs 21 are connected in series on the first discharging loop or connected in parallel on the second discharging loop, the sharing of a plurality of discharging loops is realized, the practical performance is improved, finally, the AD sampling interface 11 is arranged on the control chip 1, when the battery pack 2 is discharged, the voltage of each battery pack 21 can be detected through the AD sampling interface 11, when in use, if the pressure difference is detected to be larger than the set value, the control chip 1 controls the electronic switch 4 to be disconnected, the battery pack 2 is not allowed to discharge, and the battery pack 2 can be discharged after the equalizing charge, the unbalanced battery packs 21 are prevented from being charged with a large current after being connected in parallel, thereby causing a potential safety hazard.
The electronic switch 4 is an MOS (metal oxide semiconductor) tube, the source electrode of the MOS tube is connected with the negative electrode of the battery pack 21, the drain electrode of the MOS tube is connected with a charge-discharge interface B-, the grid electrode of the MOS tube is connected with the control chip 1, the battery pack 21 can be controlled and managed individually, the battery pack 2 comprises two groups of battery packs 21, the charging loop 31 comprises an 18V power supply, a charging socket C + and a charging socket C-, the negative electrode of the 18V power supply is respectively connected with the charge-discharge interface B-of the battery pack 21, the positive electrode of the 18V power supply is respectively connected with the charge-discharge interface B + of the battery pack 21, when the voltages of the two groups of battery packs 21 have voltage differences, the 18V power supply firstly charges the battery pack 21 with low voltage until the battery pack 21 is balanced, and then charges.
Finally, in order to realize the switching between the first discharge loop and the second discharge loop, the charge and discharge platform in this embodiment can be configured as a box body, a box cover and a circuit board, the charging loop, the first discharging loop and the second discharging loop are all arranged on a circuit board which is arranged in the box body, the box body is provided with a signboard, so that the plug-in operation is convenient, the first discharging loop comprises a 36VDC tool, a first discharging socket P + and a first discharging socket P-, the negative pole of the 36VDC tool is connected with a first discharge socket P-, the positive pole of the 36VDC tool is connected with a first discharge socket P +, the first discharge socket P-is connected to the discharge interface B-of the first group of battery packs 21, the first discharging socket P + is connected with a discharging interface B + of the second group of battery packs 21, and the discharging interface B + of the first group of battery packs 21 is connected with a discharging interface B-of the second group of battery packs 21; the second discharging loop comprises an 18VDC tool, a second discharging socket P + and a second discharging socket P-, the negative electrode of the 18VDC tool is connected with the second discharging socket P-, the positive electrode of the 18VDC tool is connected with the second discharging socket P +, the second discharging sockets P-are respectively connected with the discharging interfaces B-of the two groups of battery packs 21, the second discharging sockets P + are respectively connected with the discharging interfaces B + of the two groups of battery packs 21, and the 36VDC tool and the 18VDC tool in the embodiment include, but are not limited to, a garden tool, an electric tool, and are not limited to 36V and 18V.
In addition to the preferred embodiments described above, other embodiments of the present invention are also possible, and those skilled in the art can make various changes and modifications according to the present invention without departing from the spirit of the present invention, which should fall within the scope of the present invention defined by the appended claims.
Claims (5)
1. A multi-voltage battery pack management control device is characterized in that: including control chip, battery package and charge-discharge platform, the battery package is including at least two sets of group battery, and every group battery all includes charge-discharge interface B-and charge-discharge interface B +, and the negative pole of the group battery of second group links to each other with the charge-discharge interface B + of first group battery, and the positive pole of the group battery of second group links to each other with the charge-discharge interface B-of first group, every group all be equipped with electronic switch between the negative pole of group battery and the charge-discharge interface B-, electronic switch links to each other with control chip, be equipped with the AD sampling interface that detects every group battery voltage on the control chip, charge-discharge platform includes charge circuit, first discharge circuit and second discharge circuit, the group battery connects in parallel on charge circuit, the group battery establishes ties on first discharge circuit or connects in parallel on the second discharge circuit.
2. The multi-voltage battery pack management control device according to claim 1, characterized in that: the electronic switch is an MOS tube, a source electrode of the MOS tube is connected with a negative electrode of the battery pack, a drain electrode of the MOS tube is connected with a charge-discharge interface B-, and a grid electrode of the MOS tube is connected with the control chip.
3. The multi-voltage battery pack management control device according to claim 1, characterized in that: the battery comprises two groups of battery packs, the charging loop comprises an 18V power supply, a charging socket C + and a charging socket C-, the negative electrode of the 18V power supply is connected with a charging and discharging interface B-of the battery pack respectively, and the positive electrode of the 18V power supply is connected with a charging and discharging interface B + of the battery pack respectively.
4. A multi-voltage battery pack management control apparatus according to claim 3, characterized in that: the first discharging loop comprises a 36VDC tool, a first discharging socket P + and a first discharging socket P-, the negative electrode of the 36VDC tool is connected with the first discharging socket P-, the positive electrode of the 36VDC tool is connected with the first discharging socket P +, the first discharging socket P-is connected with a discharging interface B-of the first group of battery packs, the first discharging socket P + is connected with a discharging interface B + of the second group of battery packs, and the discharging interface B + of the first group of battery packs is connected with a discharging interface B-of the second group of battery packs.
5. A multi-voltage battery pack management control apparatus according to claim 3, characterized in that: the second discharging loop comprises an 18VDC tool, a second discharging socket P + and a second discharging socket P-, the negative electrode of the 18VDC tool is connected with the second discharging socket P-, the positive electrode of the 18VDC tool is connected with the second discharging socket P +, the second discharging socket P-is respectively connected with the discharging interfaces B-of the two groups of battery packs, and the second discharging socket P + is respectively connected with the discharging interfaces B + of the two groups of battery packs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020631604.7U CN212784795U (en) | 2020-04-23 | 2020-04-23 | Multi-voltage battery pack management control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020631604.7U CN212784795U (en) | 2020-04-23 | 2020-04-23 | Multi-voltage battery pack management control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212784795U true CN212784795U (en) | 2021-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020631604.7U Active CN212784795U (en) | 2020-04-23 | 2020-04-23 | Multi-voltage battery pack management control device |
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| Country | Link |
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| CN (1) | CN212784795U (en) |
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- 2020-04-23 CN CN202020631604.7U patent/CN212784795U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A multi-voltage battery pack management and control device Effective date of registration: 20220809 Granted publication date: 20210323 Pledgee: Agricultural Bank of China Limited by Share Ltd. Jiaxing branch Pledgor: ZHEJIANG TEKANG ELECTRONIC TECHNOLOGY Co.,Ltd. Registration number: Y2022980012195 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |