CN214479772U - Multi-battery pack control circuit - Google Patents
Multi-battery pack control circuit Download PDFInfo
- Publication number
- CN214479772U CN214479772U CN202120811111.6U CN202120811111U CN214479772U CN 214479772 U CN214479772 U CN 214479772U CN 202120811111 U CN202120811111 U CN 202120811111U CN 214479772 U CN214479772 U CN 214479772U
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- battery
- group battery
- mcu module
- opto
- coupler
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Abstract
The utility model discloses a multi-battery pack control circuit, belonging to the technical field of battery pack connection; including group battery 1, group battery 1 is equipped with the MCU module, the MCU module is connected with switch SW1_1, the MCU module is connected with a plurality of resistances, the MCU module is connected with triode Q1_1, triode Q1_1 is connected with opto-coupler U1_1, 1 parallel connection of group battery has group battery 2, the live wire VCC that the collecting electrode of opto-coupler U1_1 passes through resistance and group battery 2 in the group battery 1 is connected, the projecting pole of opto-coupler U1_1 is connected with the ground wire GND in the group battery 2. The utility model discloses an add the buffer circuit of opto-coupler, triode, can effectual solution ground wire not keep apart the problem, can effectively solve the inconsistent problem that leads to can not correctly start of group battery voltage. Through this circuit, can connect a plurality of groups of batteries in parallel, can effectual awakening group of batteries.
Description
Technical Field
The utility model provides a many group battery control circuit belongs to group battery connection technical field.
Background
In the parallel connection of multiple battery packs, the prior art is to connect each battery pack in parallel directly, such as connecting P1+ to P2+ (wherein P1+ and P2+ are the anodes of the batteries), connecting P1-to P2-, and connecting S1 and S2; similar to when one switch is closed, all the parallel switches are closed for the purpose of starting the battery pack, and the exemplary diagram is shown below, so that there are problems with the operation. The switches of the battery packs are directly connected in parallel, the grounds of the battery packs are directly connected in parallel through the switches, and the ground wires of the battery packs are not isolated; when a voltage difference exists between the battery packs (for example, the battery pack 1 is 48V, and the battery pack 2 is 45V), the GND of the battery pack with low voltage of the battery pack is raised (for example, raised by 3V), so that the battery pack cannot detect the key pressing under the condition that the key is pressed, namely, the battery pack cannot be started, and the purpose of connecting the battery packs in parallel cannot be achieved.
SUMMERY OF THE UTILITY MODEL
The utility model provides a pair of many group battery control circuit can solve the group battery and can not start the closed problem that can not keep apart of group battery, ground wire in parallelly connected use switch.
The utility model discloses a solve above-mentioned problem, the technical scheme who proposes is: including group battery 1, group battery 1 is equipped with the MCU module, the MCU module is connected with switch SW1_1, the MCU module is connected with a plurality of resistances, the MCU module is connected with triode Q1_1, triode Q1_1 is connected with opto-coupler U1_1, 1 parallel connection of group battery has group battery 2, the live wire VCC that the collecting electrode of opto-coupler U1_1 passes through resistance and group battery 2 in the group battery 1 is connected, the projecting pole of opto-coupler U1_1 is connected with the ground wire GND in the group battery 2.
The MCU module is connected in series with a switch SW1_ 1.
The switch SW1_1 is connected to a ground GND.
The MCU module one end is established ties and is had fourth resistance R1_4, R1_4 is connected with the live wire VCC, the MCU module other end is established ties and is had first resistance R1_1, first resistance R1_1 is established ties and is had second resistance R1_2, second resistance R1_2 is connected with ground wire GND.
First resistance R1_1 is connected with opto-coupler U1_1 through triode Q1_1, opto-coupler U1_1 is connected with third resistance R1_3, third resistance R1_3 is connected with the live wire VCC.
The circuit in the battery pack 2 is the same as the circuit in the battery pack 1.
The utility model has the advantages that: the utility model discloses an add the buffer circuit of opto-coupler, triode, can effectual solution ground wire not keep apart the problem, can effectively solve the inconsistent problem that leads to can not correctly start of group battery voltage. Through this circuit, can connect a plurality of groups of batteries in parallel, can effectual awakening group of batteries.
Drawings
Fig. 1 is a circuit diagram of a prior art multiple battery pack parallel use.
Fig. 2 is a circuit diagram of a multi-battery control circuit according to the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
According to the illustration of FIG. 1: the utility model provides a many group battery control circuit: including group battery 1, group battery 1 is equipped with the MCU module, the MCU module is connected with switch SW1_1, the MCU module is connected with a plurality of resistances, the MCU module is connected with triode Q1_1, triode Q1_1 is connected with opto-coupler U1_1, 1 parallel connection of group battery has group battery 2, the live wire VCC that the collecting electrode of opto-coupler U1_1 passes through resistance and group battery 2 in the group battery 1 is connected, the projecting pole of opto-coupler U1_1 is connected with the ground wire GND in the group battery 2. The MCU module is connected in series with a switch SW1_ 1. The switch SW1_1 is connected to a ground GND. The MCU module one end is established ties and is had fourth resistance R1_4, R1_4 is connected with the live wire VCC, the MCU module other end is established ties and is had first resistance R1_1, first resistance R1_1 is established ties and is had second resistance R1_2, second resistance R1_2 is connected with ground wire GND. First resistance R1_1 is connected with opto-coupler U1_1 through triode Q1_1, opto-coupler U1_1 is connected with third resistance R1_3, third resistance R1_3 is connected with the live wire VCC. The circuit in the battery pack 2 is the same as the circuit in the battery pack 1.
The principle of the utility model
After the switch S is closed, the MCU can acquire a signal for closing the switch, and the IO port is controlled to be at a high level through the MCU, so that the triode is in a conducting state at the moment, namely, the optocoupler is conducted, namely, the switch of the next battery pack is closed; the purpose of awakening the next battery pack is achieved.
The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (6)
1. A multi-battery pack control circuit, comprising: including group battery 1, group battery 1 is equipped with the MCU module, the MCU module is connected with switch SW1_1, the MCU module is connected with a plurality of resistances, the MCU module is connected with triode Q1_1, triode Q1_1 is connected with opto-coupler U1_1, 1 parallel connection of group battery has group battery 2, the live wire VCC that the collecting electrode of opto-coupler U1_1 passes through resistance and group battery 2 in the group battery 1 is connected, the projecting pole of opto-coupler U1_1 is connected with the ground wire GND in the group battery 2.
2. The multi-battery control circuit of claim 1, wherein: the MCU module is connected in series with a switch SW1_ 1.
3. The multi-battery control circuit of claim 1, wherein: the switch SW1_1 is connected to a ground GND.
4. The multi-battery control circuit of claim 1, wherein: the MCU module one end is established ties and is had fourth resistance R1_4, R1_4 is connected with the live wire VCC, the MCU module other end is established ties and is had first resistance R1_1, first resistance R1_1 is established ties and is had second resistance R1_2, second resistance R1_2 is connected with ground wire GND.
5. The multi-battery control circuit of claim 4, wherein: first resistance R1_1 is connected with opto-coupler U1_1 through triode Q1_1, opto-coupler U1_1 is connected with third resistance R1_3, third resistance R1_3 is connected with the live wire VCC.
6. The multi-battery control circuit of claim 4, wherein: the circuit in the battery pack 2 is the same as the circuit in the battery pack 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120811111.6U CN214479772U (en) | 2021-04-20 | 2021-04-20 | Multi-battery pack control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120811111.6U CN214479772U (en) | 2021-04-20 | 2021-04-20 | Multi-battery pack control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214479772U true CN214479772U (en) | 2021-10-22 |
Family
ID=78179750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120811111.6U Expired - Fee Related CN214479772U (en) | 2021-04-20 | 2021-04-20 | Multi-battery pack control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214479772U (en) |
-
2021
- 2021-04-20 CN CN202120811111.6U patent/CN214479772U/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: 20211022 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |