CN220934883U - Energy storage battery self-diagnosis control circuit and energy storage battery - Google Patents
Energy storage battery self-diagnosis control circuit and energy storage battery Download PDFInfo
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- CN220934883U CN220934883U CN202322509540.XU CN202322509540U CN220934883U CN 220934883 U CN220934883 U CN 220934883U CN 202322509540 U CN202322509540 U CN 202322509540U CN 220934883 U CN220934883 U CN 220934883U
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- 238000004146 energy storage Methods 0.000 title claims abstract description 57
- 238000004092 self-diagnosis Methods 0.000 title claims abstract description 19
- 238000012544 monitoring process Methods 0.000 claims abstract description 37
- 238000004891 communication Methods 0.000 claims abstract description 33
- 238000001514 detection method Methods 0.000 claims abstract description 30
- 230000000087 stabilizing effect Effects 0.000 claims description 44
- 238000000034 method Methods 0.000 abstract description 5
- 230000002159 abnormal effect Effects 0.000 abstract description 3
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- 101001042415 Cratylia mollis Mannose/glucose-specific lectin Cramoll Proteins 0.000 description 6
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- 101000643378 Homo sapiens Serine racemase Proteins 0.000 description 6
- AIXMJTYHQHQJLU-UHFFFAOYSA-N chembl210858 Chemical compound O1C(CC(=O)OC)CC(C=2C=CC(O)=CC=2)=N1 AIXMJTYHQHQJLU-UHFFFAOYSA-N 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of energy storage batteries, and particularly relates to a self-diagnosis control circuit of an energy storage battery and the energy storage battery, comprising: the power supply circuit is used for supplying power; the main control circuit is connected with the power supply circuit and comprises a main control chip; the monitoring circuit is respectively connected with the power supply circuit and the main control circuit and comprises a monitoring chip, a current detection circuit and a voltage detection circuit, wherein the monitoring chip is connected with the main control chip, and the current detection circuit and the voltage detection circuit are respectively connected with the monitoring chip; the communication circuit is connected with the main control circuit and the power supply circuit and is used for being connected with the terminal equipment, so that a user can timely find out abnormal conditions of current or voltage of the energy storage battery, timely monitor the energy storage battery and process the energy storage battery, and prevent the energy storage battery from being overdischarged.
Description
Technical Field
The utility model relates to the technical field of energy storage batteries, in particular to a self-diagnosis control circuit of an energy storage battery and the energy storage battery.
Background
At present, a few researches and applications of standby power supply systems based on energy storage technology exist at home and abroad, and a lithium battery is mainly used as an energy storage mode. Compared with other energy storage modes, the lithium battery has the advantages of small volume, high energy density, high charge and discharge efficiency, low self-discharge rate and the like, and is widely applied to the field of standby power supplies. When different kinds of energy storage batteries are mixed, the energy storage batteries can be overdischarged due to different discharging time, so that the damage to the energy storage batteries is large, and the energy storage batteries cannot be used for a long time.
Currently, a detection and diagnosis method of an energy storage battery management system mainly comprises monitoring the current and the voltage of a battery. However, the existing method often has long time in the detection process, and cannot realize online and real-time monitoring of the battery. Therefore, it is necessary to design a self-diagnosis control circuit for an energy storage battery to overcome the defects in the prior art.
Disclosure of utility model
The utility model aims to provide a self-diagnosis control circuit of an energy storage battery, which aims to solve the technical problem that the detection time of the energy storage battery is long and the state of the battery cannot be monitored in time in the prior art.
To achieve the above object, an embodiment of the present utility model provides a self-diagnosis control circuit for an energy storage battery, including: the power supply circuit is used for supplying power; the main control circuit is connected with the power supply circuit and comprises a main control chip; the monitoring circuit is respectively connected with the power supply circuit and the main control circuit and comprises a monitoring chip, a current detection circuit and a voltage detection circuit, wherein the monitoring chip is connected with the main control chip, and the current detection circuit and the voltage detection circuit are respectively connected with the monitoring chip; the communication circuit is connected with the main control circuit and the power supply circuit and is used for being connected with terminal equipment.
Optionally, the voltage detection circuit includes the discharge voltage link of two at least groups electric core, the discharge voltage link includes anodal link and negative pole link, anodal link with the negative pole link respectively with the different pins of main control chip are connected, anodal link with connect through a first MOS pipe between the negative pole link, the grid and the source of first MOS pipe with the negative pole link is connected, the drain electrode and the anodal link of first MOS pipe are connected.
Optionally, the monitoring circuit further includes a reverse connection detection circuit, the reverse connection detection circuit includes a first thermistor, a thirty-fifth resistor, a thirty-sixth resistor, a fourth diode, an eighth optocoupler and an eighth resistor, one end of the first thermistor is grounded, the other end of the first thermistor is connected with an anode input end of the eighth optocoupler, a cathode input end of the eighth optocoupler is sequentially connected with the thirty-fifth resistor, the thirty-sixth resistor and the fourth diode and then connected to the power supply circuit, a cathode output end of the eighth optocoupler is grounded, and an anode output end of the eighth optocoupler is respectively connected with the power supply circuit and the master control chip.
Optionally, the main control circuit further includes an active current limiting circuit, the active current limiting circuit includes a thirteenth triode, a second optocoupler and a ninth MOS transistor, a base electrode of the thirteenth triode is connected with the main control chip, an emitter of the thirteenth triode is grounded, a collector of the thirteenth triode is connected with an input end of the second optocoupler, an output end of the second optocoupler is connected with a gate electrode of the ninth MOS transistor, and a drain electrode of the ninth MOS transistor is connected with the main control circuit.
Optionally, the communication circuit includes eighth triode, first opto-coupler, third opto-coupler, fifth opto-coupler, first transceiver, first common mode inductance, first electrostatic diode and first communication interface, the base of eighth triode with main control chip is connected, the collecting electrode of eighth triode with the negative pole input of first opto-coupler is connected, the projecting pole ground connection of eighth triode, the positive pole input of first opto-coupler with the positive pole input of third opto-coupler with power supply circuit is connected, the output of first opto-coupler with the output of third opto-coupler respectively with first transceiver is connected, the first transceiver with the input of fifth opto-coupler is connected, the output of fifth opto-coupler with main control chip is connected, first transceiver with first common mode inductance is connected, first common mode is connected with first communication interface and first electrostatic diode respectively.
Optionally, the communication circuit further includes a first digital isolator, a third transceiver, a third common mode inductor, an RS232 communication interface and a third electrostatic diode, where the first digital isolator is connected with the main control chip, the third transceiver is connected with the first digital isolator, and the third transceiver is connected with the third common mode inductor and the RS232 communication interface respectively.
Optionally, the power supply circuit includes interconnect's first voltage stabilizing circuit and second voltage stabilizing circuit, first voltage stabilizing circuit includes 12V link, first voltage stabilizing chip, sixth inductance, first voltage stabilizing resistor and 5V link, 12V link with first voltage stabilizing chip is connected, first voltage stabilizing chip with one end of sixth inductance is connected, the other end of sixth inductance with one end of first voltage stabilizing resistor is connected, the other end of first voltage stabilizing resistor with 5V link is connected.
Optionally, the second voltage stabilizing circuit includes a second voltage stabilizing chip and a 3.3V connection end, the second voltage stabilizing chip is connected with the 12V connection end, and the second voltage stabilizing chip is also connected with the 3.3V connection end.
Optionally, the power supply circuit further includes a chip power supply circuit, the chip power supply circuit includes a first battery and a fourth schottky diode, the first battery and the fourth schottky diode, the fourth schottky diode is connected with the second voltage stabilizing circuit, and the fourth schottky diode is further connected with the main control chip.
An energy storage battery comprises the energy storage battery self-diagnosis control circuit.
The above technical scheme in the energy storage battery self-diagnosis control circuit provided by the embodiment of the utility model has at least one of the following technical effects:
according to the utility model, the monitoring circuit is arranged in the energy storage battery, so that the cell voltage and the cell current of the energy storage battery are monitored in real time and sent to the main control chip, and when the cell voltage or the cell current is lower than a preset threshold value, a control signal is generated and the main control chip is used for controlling the energy storage battery to stop discharging. And the abnormal state of the current or the voltage of the energy storage battery can be timely found by a user, the energy storage battery is timely monitored and processed, and the over-discharge of the energy storage battery is prevented.
Drawings
FIG. 1 is a schematic diagram of a power supply circuit according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a master control circuit according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram of an active current limiting circuit according to an embodiment of the present utility model;
FIG. 4 is a schematic diagram of a temperature acquisition circuit according to an embodiment of the present utility model;
FIG. 5 is a schematic diagram of a monitoring circuit according to an embodiment of the present utility model;
FIG. 6 is a schematic diagram of a communication circuit according to an embodiment of the present utility model;
Fig. 7 is a schematic diagram of a WIFI circuit according to an embodiment of the present utility model;
Wherein, each reference sign in the figure:
1. a power supply circuit; 11. A first voltage stabilizing circuit; 12. A second voltage stabilizing circuit;
13. a chip power supply circuit; 2. A main control circuit; 21. An active current limiting circuit;
22. a temperature acquisition circuit; 3. A monitoring circuit; 31. A current detection circuit;
32. a voltage detection circuit; 33. A reverse connection detection circuit; 4. A communication circuit;
41. and a WIFI circuit.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended to illustrate embodiments of the utility model and should not be construed as limiting the utility model.
In the description of the embodiments of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the embodiments of the present utility model and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise.
In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.
In one embodiment of the present utility model, as shown in fig. 1 to 7, there is provided a self-diagnosis control circuit of an energy storage battery, which includes a power supply circuit 1, a main control circuit 2, a monitoring circuit 3, and a communication circuit 4. The power supply circuit 1 is used for supplying power; the main control circuit 2 is connected with the power supply circuit 1, and the main control circuit 2 comprises a main control chip U1; the monitoring circuit 3 is respectively connected with the power supply circuit 1 and the main control circuit 2, the monitoring circuit 3 comprises a monitoring chip, a current detection circuit 31 and a voltage detection circuit 32, the monitoring chip is connected with the main control chip U1, and the current detection circuit 31 and the voltage detection circuit 32 are respectively connected with the monitoring chip; the communication circuit 4 is connected with the main control circuit 2 and the power supply circuit 1, and the communication circuit 4 is used for connecting terminal equipment.
According to the utility model, the monitoring circuit 3 is arranged in the energy storage battery, so that the cell voltage and the cell current of the energy storage battery are monitored in real time and sent to the main control chip U1, and when the cell voltage or the cell current is lower than a preset threshold value, a control signal is generated and the main control chip U1 is used for controlling the energy storage battery to stop discharging. And the abnormal state of the current or voltage of the energy storage battery can be timely found by a user through the communication circuit 4 and sent to the user terminal equipment, the energy storage battery is timely monitored and processed, and the over-discharge of the energy storage battery is prevented.
Specifically, in another embodiment of the present utility model, as shown in fig. 1 to 7, the voltage detection circuit 32 includes at least two sets of discharge voltage connection ends of the battery cells, the discharge voltage connection ends include an anode connection end and a cathode connection end, the anode connection end and the cathode connection end are respectively connected with different pins of the main control chip U1, the anode connection end and the cathode connection end are connected through a first MOS tube, a gate electrode and a source electrode of the first MOS tube are connected with the cathode connection end, and a drain electrode of the first MOS tube is connected with the anode connection end. Specifically, the number of the battery cells is sixteen, and the thirty-fifth pin to the fifty-first pin of the monitor chip are all used for connecting the voltage detection circuit 32. In this embodiment, the positive electrode connection end of the first group of electric cells is connected with the thirty-fifth pin of the monitoring chip, and the negative electrode connection end of the first group of electric cells is connected with the thirty-sixth pin of the monitoring chip. Because the multiple groups of electric cores are connected in series, the positive electrode connecting end of the second group of electric cores is connected with the negative electrode connecting end of the first group of electric cores and is connected with the thirty-sixth pin of the monitoring chip, and the negative electrode connecting end of the second group of electric cores is connected with the thirty-seventh pin of the monitoring chip. Similarly, sixteen groups of electric cores can be connected by analogy, so that the negative electrode connecting end of the sixteenth group of electric cores is connected with the fifty-first pin of the monitoring chip, and the fifty-first pin of the monitoring chip is grounded. Preferably, the model of the monitor chip may be AN49503. The method comprises the steps of monitoring discharge voltages of at least two groups of battery cells in real time through a monitoring chip, and sending the discharge voltages to a main control chip U1; and the seventy-two pins to seventy-six pins of the monitoring chip are not SPI pins and are respectively connected with the main control chip U1, and data exchange is carried out with the main control chip U1 through the SPI pins. When the main control chip U1 judges that the discharging voltage of one group of the at least two groups of the electric cores which are discharging is smaller than or equal to a preset voltage threshold value, a control signal is generated and the group of batteries which are discharging is controlled to stop discharging.
Further, the monitoring circuit 3 further includes a reverse connection detecting circuit 33, and the reverse connection detecting circuit 33 includes a first thermistor RT, a thirty-fifth resistor R35, a thirty-sixth resistor R36, a fourth diode D4, an eighth optocoupler ISO8, and an eighth resistor R8. One end of the first thermistor RT is grounded, the other end of the first thermistor RT is connected with the positive electrode input end of the eighth optocoupler ISO8, the negative electrode input end of the eighth optocoupler ISO8 is sequentially connected with the thirty-fifth resistor R35, the thirty-sixth resistor R36 and the fourth diode D4 and then connected with the power supply circuit 1, the negative electrode output end of the eighth optocoupler ISO8 is grounded, and the positive electrode output end of the eighth optocoupler ISO8 is respectively connected with the power supply circuit 1 and the main control chip U1, so that the external charging reverse connection protection function of the energy storage battery is realized.
Specifically, in another embodiment of the present utility model, as shown in fig. 1 to 7, the main control circuit 2 further includes an active current limiting circuit 21, the active current limiting circuit 21 includes a thirteenth transistor Q13, a second optocoupler ISO2 and a ninth MOS transistor Q9, a base electrode of the thirteenth transistor Q13 is connected to the main control chip U1, an emitter electrode of the thirteenth transistor Q13 is grounded, a collector electrode of the thirteenth transistor Q13 is connected to an input end of the second optocoupler ISO2, an output end of the second optocoupler ISO2 is connected to a gate electrode of the ninth MOS transistor Q9, and a drain electrode of the ninth MOS transistor Q9 is connected to the main control circuit 23. Specifically, the base electrode of the ninth MOS tube is connected with the fifth pin of the main control chip U1, and a charging current limiting value or a charging current unlimited value is set by a user through the main control chip U1 according to requirements.
The main control circuit 2 further includes a temperature acquisition circuit 22, where the temperature acquisition circuit 22 includes a temperature sensor interface J2, a first resistor R179, a second resistor R180, a third resistor R181, and a fourth resistor R182. The temperature sensor interface J2 is respectively connected with one end of the first resistor R179, one end of the second resistor R180, one end of the third resistor R181 and one end of the fourth resistor R182 and the main control chip U1. One end of the first resistor R179, one end of the second resistor R180, one end of the third resistor R181 and one end of the fourth resistor R182 are respectively connected with a capacitor and then grounded; the other end of the first resistor R179, the other end of the second resistor R180, the other end of the third resistor R181, and the other end of the fourth resistor R182 are all connected to the power supply circuit 1. Specifically, one end of the first resistor R179 is connected with a thirty-sixth pin of the main control chip U1 and is connected to a first pin of the temperature sensor interface J2; one end of the second resistor R180 is connected with a thirty-fifth pin of the main control chip U1 and is connected with a third pin of the temperature sensor interface J2; one end of the third resistor R181 is connected with a thirty-fourth pin of the main control chip U1 and is connected with a fifth pin of the temperature sensor interface J2; one end of the fourth resistor R182 is connected with a thirty-third pin of the main control chip U1 and is connected with a seventh pin of the temperature sensor interface J2; the temperature sensor interface J2 is respectively connected with a temperature sensor, and returns the cell temperature information acquired in real time to the main control chip U1, and the cell temperature information is sent to user terminal equipment by the main control chip U1 through a communication circuit, so that multi-channel monitoring of the cell temperature is realized. When the temperature of the battery core is larger than a preset protection threshold, the charging loop or the discharging loop can be cut off until the temperature of the battery core reaches a recovery value, the protection is released, and the normal working state is recovered.
Specifically, in another embodiment of the present utility model, as shown in fig. 1 to 7, the communication circuit 4 includes an eighth triode Q8, a first optocoupler ISO1, a third optocoupler ISO3, a fifth optocoupler ISO5, a first transceiver U7, a first common mode inductance L1, a first electrostatic diode TV1 and a first communication interface COM3, wherein a base electrode of the eighth triode Q8 is connected to the main control chip U1, and an eighteenth pin of the main control chip U1 outputs a signal to the base electrode of the eighth triode Q8. The collector of the eighth triode Q8 is connected with the negative input end of the first optical coupler ISO1, the emitter of the eighth triode Q8 is grounded, the output signal is amplified by the eighth triode Q8, and the output signal is isolated in a communication way by the first optical coupler ISO1, so that the stability and the reliability of the signal are improved. The positive electrode input end of the first optical coupler ISO1 and the positive electrode input end of the third optical coupler ISO3 are connected with the power supply circuit 1, the output end of the first optical coupler ISO1 and the output end of the third optical coupler ISO3 are respectively connected with the first transceiver U7, the first transceiver U7 receives output signals isolated by the first optical coupler ISO1 and the third optical coupler ISO3, and the output signals are sent to the first communication interface COM3 through the first transceiver U7, so that the output signals are connected to terminal equipment of a user in a communication mode. And the first transceiver U7 receives the control signal from the user terminal device through the first communication interface COM3, and is connected with the input end of the fifth optocoupler ISO5 by the first transceiver U7, and the output end of the fifth optocoupler ISO5 is connected with the main control chip U1, so that the control signal of the user terminal device is transmitted to the main control chip U1, and a corresponding control instruction is issued. The first transceiver U7 is connected to the first common-mode inductor L1, and the first common-mode inductor L1 is connected to the first communication interface COM3 and the first electrostatic diode TV1, respectively, to filter electromagnetic interference signals of a common mode.
Specifically, in another embodiment of the present utility model, as shown in fig. 1 to 7, the communication circuit 4 further includes a first digital isolator U16, a third transceiver U6, a third common-mode inductor L9, an RS232 communication interface, and a third electrostatic diode TV3, where the first digital isolator U16 is connected to the main control chip U1, the third transceiver U6 is connected to the first digital isolator U16, and the third transceiver U6 is connected to the third common-mode inductors L9 and the RS232 communication interface, respectively. And receiving or transmitting signals through the third transceiver U6, and transmitting control signals of the user terminal equipment to the main control chip U1 or transmitting output signals of the main control chip U1 to the terminal equipment.
Specifically, in another embodiment of the present utility model, as shown in fig. 1 to 7, the communication circuit 4 further includes a WIFI circuit 41, the WIFI circuit 41 includes a fourth MOS transistor M4, a third capacitor C3, and a WIFI interface WIFI1, a gate of the fourth MOS transistor M4 is connected to the main control chip U1, and a drain of the fourth MOS transistor M4 is connected to a fourth pin of the WIFI interface WIFI1 and the power supply circuit 1. The third electric capacity C3 is connected with WIFI interface WIFI1, and WIFI interface WIFI1 fifth pin and WIFI interface WIFI 1's sixth pin are connected with main control chip U1 seventy eight pins and seventy nine pins respectively, and the output and the input of responsible signal, WIFI interface WIFI1 external has WIFI equipment to realize energy storage battery's wireless networking function, make the user monitor the real-time state of this energy storage battery through cell-phone APP.
Specifically, in another embodiment of the present utility model, as shown in fig. 1 to 7, the power supply circuit 1 includes a first voltage stabilizing circuit 11 and a second voltage stabilizing circuit 12 that are connected to each other, the first voltage stabilizing circuit 11 includes a 12V connection terminal, a first voltage stabilizing chip U14, a sixth inductor L6, first voltage stabilizing resistors R132 and 5V connection terminals, the 12V connection terminal is connected to the first voltage stabilizing chip U14, the first voltage stabilizing chip U14 is connected to one end of the sixth inductor L6, the other end of the sixth inductor L6 is connected to one end of the first voltage stabilizing resistor R132, and the other end of the first voltage stabilizing resistor R132 is connected to the 5V connection terminal, and outputs a 5V voltage.
Further, the second voltage stabilizing circuit 12 includes second voltage stabilizing chips DY1 and 3.3V connection terminals, the second voltage stabilizing chips DY1 are connected with the 12V connection terminals, the second voltage stabilizing chips DY1 are also connected with the 3.3V connection terminals, and output 3.3V voltage.
Further, the power supply circuit 1 further includes a chip power supply circuit 1, the chip power supply circuit 1 includes a first battery BT1 and a fourth schottky diode D28, the first battery BT1 is connected to the fourth schottky diode D28, the fourth schottky diode D28 is connected to the second voltage stabilizing circuit 12, and the fourth schottky diode D28 is also connected to the main control chip U1.
The utility model also provides an energy storage battery, which comprises the energy storage battery self-diagnosis control circuit.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (10)
1. A self-diagnostic control circuit for an energy storage battery, comprising:
the power supply circuit is used for supplying power;
The main control circuit is connected with the power supply circuit and comprises a main control chip;
the monitoring circuit is respectively connected with the power supply circuit and the main control circuit and comprises a monitoring chip, a current detection circuit and a voltage detection circuit, wherein the monitoring chip is connected with the main control chip, and the current detection circuit and the voltage detection circuit are respectively connected with the monitoring chip;
The communication circuit is connected with the main control circuit and the power supply circuit and is used for being connected with terminal equipment.
2. The self-diagnosis control circuit of an energy storage battery according to claim 1, wherein the voltage detection circuit comprises discharge voltage connection ends of at least two groups of electric cores, the discharge voltage connection ends comprise an anode connection end and a cathode connection end, the anode connection end and the cathode connection end are respectively connected with different pins of the main control chip, the anode connection end and the cathode connection end are connected through a first MOS tube, a grid electrode and a source electrode of the first MOS tube are connected with the cathode connection end, and a drain electrode of the first MOS tube is connected with the anode connection end.
3. The self-diagnosis control circuit of an energy storage battery according to claim 2, wherein the monitoring circuit further comprises a reverse connection detection circuit, the reverse connection detection circuit comprises a first thermistor, a thirty-fifth resistor, a thirty-sixth resistor, a fourth diode, an eighth optocoupler and an eighth resistor, one end of the first thermistor is grounded, the other end of the first thermistor is connected with an anode input end of the eighth optocoupler, a cathode input end of the eighth optocoupler is connected with the thirty-fifth resistor, the thirty-sixth resistor and the fourth diode in sequence and then connected into the power supply circuit, a cathode output end of the eighth optocoupler is grounded, and anode output ends of the eighth optocoupler are respectively connected with the power supply circuit and the main control chip.
4. The self-diagnosis control circuit of claim 1, wherein the main control circuit further comprises an active current limiting circuit, the active current limiting circuit comprises a thirteenth triode, a second optocoupler and a ninth MOS tube, a base electrode of the thirteenth triode is connected with the main control chip, an emitter electrode of the thirteenth triode is grounded, a collector electrode of the thirteenth triode is connected with an input end of the second optocoupler, an output end of the second optocoupler is connected with a grid electrode of the ninth MOS tube, and a drain electrode of the ninth MOS tube is connected with the main control circuit.
5. The self-diagnosis control circuit of an energy storage battery according to claim 1, wherein the communication circuit comprises an eighth triode, a first optocoupler, a third optocoupler, a fifth optocoupler, a first transceiver, a first common mode inductor, a first electrostatic diode and a first communication interface, a base electrode of the eighth triode is connected with the main control chip, a collector electrode of the eighth triode is connected with a negative electrode input end of the first optocoupler, an emitter electrode of the eighth triode is grounded, an anode input end of the first optocoupler and an anode input end of the third optocoupler are connected with the power supply circuit, an output end of the first optocoupler and an output end of the third optocoupler are respectively connected with the first transceiver, the first transceiver is connected with an input end of the fifth optocoupler, an output end of the fifth optocoupler is connected with the main control chip, the first transceiver is connected with the first common mode inductor, and the first communication inductor is respectively connected with the first electrostatic diode.
6. The energy storage battery self-diagnosis control circuit according to claim 1, wherein the communication circuit further comprises a first digital isolator, a third transceiver, a third common mode inductor, an RS232 communication interface and a third electrostatic diode, the first digital isolator is connected with the main control chip, the third transceiver is connected with the first digital isolator, and the third transceiver is respectively connected with the third common mode inductor and the RS232 communication interface.
7. The energy storage battery self-diagnosis control circuit according to claim 1, wherein the power supply circuit comprises a first voltage stabilizing circuit and a second voltage stabilizing circuit which are connected with each other, the first voltage stabilizing circuit comprises a 12V connecting end, a first voltage stabilizing chip, a sixth inductor, a first voltage stabilizing resistor and a 5V connecting end, the 12V connecting end is connected with the first voltage stabilizing chip, the first voltage stabilizing chip is connected with one end of the sixth inductor, the other end of the sixth inductor is connected with one end of the first voltage stabilizing resistor, and the other end of the first voltage stabilizing resistor is connected with the 5V connecting end.
8. The energy storage battery self-diagnosis control circuit according to claim 7, wherein the second voltage stabilizing circuit comprises a second voltage stabilizing chip and a 3.3V connecting end, the second voltage stabilizing chip is connected with the 12V connecting end, and the second voltage stabilizing chip is further connected with the 3.3V connecting end.
9. The energy storage battery self-diagnosis control circuit according to claim 8, wherein the power supply circuit further comprises a chip power supply circuit, the chip power supply circuit comprises a first battery and a fourth schottky diode, the first battery is connected with the fourth schottky diode, the fourth schottky diode is connected with the second voltage stabilizing circuit, and the fourth schottky diode is further connected with the main control chip.
10. An energy storage battery comprising an energy storage battery self-diagnostic control circuit as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322509540.XU CN220934883U (en) | 2023-09-14 | 2023-09-14 | Energy storage battery self-diagnosis control circuit and energy storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322509540.XU CN220934883U (en) | 2023-09-14 | 2023-09-14 | Energy storage battery self-diagnosis control circuit and energy storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220934883U true CN220934883U (en) | 2024-05-10 |
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| CN202322509540.XU Active CN220934883U (en) | 2023-09-14 | 2023-09-14 | Energy storage battery self-diagnosis control circuit and energy storage battery |
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| Country | Link |
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| CN (1) | CN220934883U (en) |
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2023
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