CN210273555U - Split type battery management slave - Google Patents
Split type battery management slave Download PDFInfo
- Publication number
- CN210273555U CN210273555U CN201921421553.9U CN201921421553U CN210273555U CN 210273555 U CN210273555 U CN 210273555U CN 201921421553 U CN201921421553 U CN 201921421553U CN 210273555 U CN210273555 U CN 210273555U
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- China
- Prior art keywords
- circuit
- monomer
- power supply
- cpu
- battery
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- 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 - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model relates to a group battery management device, concretely relates to split type battery management is from machine, including power supply, temperature-detecting circuit, battery voltage detection circuit, monomer equalizer circuit, communication circuit and CPU, power supply is each module power supply, and temperature-detecting circuit, battery voltage detection circuit output all are connected to CPU's IO mouth, monomer equalizer circuit includes monomer balanced drive circuit and monomer balanced execution circuit, and monomer balanced drive circuit input is connected to from CPU's IO mouth, and monomer balanced drive circuit output concatenates the power supply circuit of monomer balanced relay coil, and monomer balanced relay normally open contact inserts monomer balanced execution circuit, and communication circuit links to each other with CPU. The utility model discloses direct mount is on the battery, and the measurement is noiseless, and the circuit is short, and the data degree of accuracy is high.
Description
Technical Field
The utility model relates to a group battery management device, concretely relates to split type battery management is from machine.
Background
The battery management group management device needs to measure parameters such as current and voltage of a battery for state monitoring, a measuring line of the existing device is long, interference is easy to exist, the interference has great influence on accuracy of measured data, moreover, data are mostly transmitted by adopting SPI or serial ports, the transmission mode consumes long time, a halt phenomenon easily occurs, if the device is carried with active equalization, voltage drop can occur on the line, the measured data can be more inaccurate, currently, the active equalization current is generally controlled to be about 10mA-2A, the battery can hardly be repaired, but passive equalization belongs to a consumption type product and is not suitable for use. If the battery cells in the battery pack are unbalanced, the battery can be scrapped even if the battery cells are continuously used under the condition of no balance, and even safety accidents can occur.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the split type battery management slave machine is directly installed on a battery, has no interference in measurement, short circuit and high data accuracy.
The utility model discloses a solve the technical scheme that its technical problem adopted and do:
split type battery management is from machine, including power supply, temperature-detecting circuit, battery voltage detection circuit, monomer equalizer circuit, communication circuit and CPU, power supply is each module power supply, and temperature-detecting circuit, battery voltage detection circuit output all are connected to CPU's IO mouth, monomer equalizer circuit includes monomer balanced drive circuit and monomer balanced execution circuit, and monomer balanced drive circuit input is connected to from CPU's IO mouth, and monomer balanced drive circuit output concatenates the power supply circuit of monomer balanced relay coil, and monomer balanced relay normally open contact inserts monomer balanced execution circuit, and communication circuit links to each other with CPU.
The utility model discloses directly set up on battery cell, the real-time temperature of battery cell and the voltage data that CPU directly gathered temperature detection circuit and battery voltage detection circuit and detected, need not through the transmission of longer data line, the processing of middle components and parts, the interference item is eliminated, CPU carries out data communication through communication circuit and battery management host computer or host computer, if detect unusually, send alarm signal to the host computer, if detect battery cell and be less than the alarm value, then start monomer equalizer circuit switch-on equalizing power and carry out initiative equilibrium.
Preferably, the single equalization circuit comprises a two-stage triode drive circuit isolated by an optical coupler, the base of a first-stage triode Q11 is connected with an I/O port of a CPU (central processing unit) of the slave, the collector of a second-stage triode Q12 is connected to a power supply through a single equalization relay coil, the emitter of a second-stage triode Q12 is grounded, the anode of the equalization power supply is connected with the anode of a single battery in series through a single equalization relay normally open contact, the cathode of the equalization power supply is also connected with the cathode of the single battery in series through the single equalization relay normally open contact, the CPU and the equalization power supply are isolated by the optical coupler, the short circuit is avoided, the low-capacity single battery is guaranteed to be supplemented with electric quantity in time, the equalization power supply is an external power supply.
Preferably, the communication circuit includes a CAN chip, the data sending input end and the data receiving output end of the CAN chip are both connected with the processor, a transient suppression diode and a pull-down resistor connected in parallel are connected between the low-level CAN voltage input/output end and the ground end of the CAN chip, a transient suppression diode and a pull-up resistor connected in parallel are connected between the high-level CAN voltage input/output end and the ground end, the pull-up resistor and the pull-down resistor CAN ensure the accuracy of the signal level, the transient suppression diode CAN prevent signal interference, and the accuracy of signal transmission is ensured.
Preferably, the power supply comprises an isolation circuit and a voltage-stabilizing filter circuit, the external input power supply is isolated by the isolation circuit and then divided into two paths of output, one path of output is used for supplying power to the communication circuit, and the other path of output is used for supplying power to the CPU through the voltage-stabilizing filter circuit, so that the power supply isolation of the CPU circuit and the communication circuit is realized.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses direct mount is on the battery, it is noiseless to measure, the circuit is short, the data accuracy is high, the free real-time temperature of battery and the voltage data direct transmission that temperature detection circuit and battery voltage detection circuit detected are to equipment CPU, need not to transmit through longer data line, the interference elimination item, CPU carries out data communication through communication circuit and battery management host computer or host computer, if detect unusually, send alarm signal to the host computer, if detect battery monomer and be less than the alarm value, then start monomer equalizer circuit and put through equalizing power and carry out initiative equilibrium.
Drawings
Fig. 1 is a circuit diagram of the present invention.
Fig. 2 is a block diagram of a cell equalization circuit.
Detailed Description
Example 1:
as shown in fig. 1-2, the split type battery management slave is directly installed on a battery, the circuit is short, the measurement is free of interference, the data accuracy is high, and the power supply, the temperature detection circuit, the battery voltage detection circuit, the single equalization circuit, the communication circuit and the CPU are provided.
The single equalizing circuit comprises a two-stage triode drive circuit isolated by an optical coupler, the base of a first-stage triode Q11 is connected with an I/O port of a CPU (central processing unit) of the slave, the collector of a second-stage triode Q12 is connected to a power supply through a single equalizing relay coil, the emitter of a second-stage triode Q12 is grounded, the anode of an equalizing power supply is connected with the anode of a single battery in series through a single equalizing relay normally open contact, the cathode of the equalizing power supply is also connected with the cathode of the single battery in series through the single equalizing relay normally open contact, the CPU and the equalizing power supply are isolated by the optical coupler, circuit short circuit is avoided, the low-capacity single battery is guaranteed to be supplemented with electric quantity in time, the equalizing power supply is an external power supply; the communication circuit comprises a CAN chip, a data sending input end and a data receiving output end of the CAN chip are both connected with the processor, a transient suppression diode and a pull-down resistor which are connected in parallel are connected between a low-level CAN voltage input/output end and a grounding end of the CAN chip, a transient suppression diode and a pull-up resistor which are connected in parallel are connected between a high-level CAN voltage input/output end and the grounding end, the pull-up resistor and the pull-down resistor CAN ensure the accuracy of signal level, the transient suppression diode CAN prevent signal interference, and the accuracy of signal transmission is ensured; the power supply comprises an isolation circuit and a voltage-stabilizing filter circuit, an external input power supply is isolated by the isolation circuit and then is divided into two paths of output, one path of output is used for supplying power for the communication circuit, and the other path of output is used for supplying power for the CPU through the voltage-stabilizing filter circuit, so that the power supply isolation of the CPU circuit and the communication circuit is realized.
The utility model discloses directly set up on battery cell, the real-time temperature of battery cell and the voltage data that CPU directly gathered temperature detection circuit and battery voltage detection circuit and detected, need not through the transmission of longer data line, the processing of middle components and parts, the interference item is eliminated, CPU carries out data communication through communication circuit and battery management host computer or host computer, if detect unusually, send alarm signal to the host computer, if detect battery monomer and be less than the alarm value, then start monomer equalizer circuit switch-on equalizing power and carry out initiative equilibrium.
Claims (3)
1. The utility model provides a split type battery management is from machine, its characterized in that, includes power supply, temperature detection circuit, battery voltage detection circuit, monomer equalizer circuit, communication circuit and CPU, power supply is each module power supply, and temperature detection circuit, battery voltage detection circuit output all are connected to CPU's I/O mouth, monomer equalizer circuit includes monomer balanced drive circuit and monomer balanced execution circuit, and monomer balanced drive circuit input is connected to from machine CPU's I/O mouth, and monomer balanced drive circuit output concatenates the power supply circuit of monomer balanced relay coil, and monomer balanced relay normally open contact inserts monomer balanced execution circuit, and communication circuit links to each other with CPU.
2. The split type battery management slave machine according to claim 1, wherein the single equalization circuit comprises a two-stage triode drive circuit isolated by optical coupling, the base of a first-stage triode Q11 is connected with an I/O port of a CPU of the slave machine, the collector of a second-stage triode Q12 is connected to a power supply source through a single equalization relay coil, the emitter of a second-stage triode Q12 is grounded, the positive electrode of the equalization power supply is connected in series with the positive electrode of a single battery through a single equalization relay normally-open contact, and the negative electrode of the equalization power supply is also connected in series with the negative electrode of the single battery through the single.
3. The slave machine according to claim 1, wherein the communication circuit comprises a CAN chip, a data transmitting input terminal and a data receiving output terminal of the CAN chip are connected with the processor, a transient suppression diode and a pull-down resistor are connected in parallel between a low-level CAN voltage input/output terminal and a ground terminal of the CAN chip, and a transient suppression diode and a pull-up resistor are connected in parallel between a high-level CAN voltage input/output terminal and the ground terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921421553.9U CN210273555U (en) | 2019-08-29 | 2019-08-29 | Split type battery management slave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921421553.9U CN210273555U (en) | 2019-08-29 | 2019-08-29 | Split type battery management slave |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210273555U true CN210273555U (en) | 2020-04-07 |
Family
ID=70018323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921421553.9U Expired - Fee Related CN210273555U (en) | 2019-08-29 | 2019-08-29 | Split type battery management slave |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210273555U (en) |
-
2019
- 2019-08-29 CN CN201921421553.9U patent/CN210273555U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200407 Termination date: 20210829 |