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CN-224231930-U - Ship battery system state monitoring circuit

CN224231930UCN 224231930 UCN224231930 UCN 224231930UCN-224231930-U

Abstract

The utility model discloses a ship battery system state monitoring circuit, and belongs to the technical field of battery monitoring. The intelligent ship battery system comprises a chip U1, wherein a communication interface of the chip U1 is in communication connection with external equipment through a CAN communication sub-circuit, the input end of the chip U1 is respectively connected with the output end of a temperature acquisition sub-circuit and the output end of a voltage and current acquisition sub-circuit, the input end of the voltage and current acquisition sub-circuit is connected with a ship battery system, the voltage and current acquisition sub-circuit is used for acquiring real-time voltage and current in the ship battery system, the input end of the temperature acquisition sub-circuit is connected with the ship battery system, and the temperature acquisition sub-circuit is used for acquiring a voltage value of the ship battery system connected into the temperature acquisition sub-circuit. The utility model can accurately detect the corresponding temperature of each path in the ship battery system, monitor the voltage and the current of the ship battery system by matching with the voltage and current acquisition sub-circuit, timely find the abnormal condition of the overcharge or overdischarge of the battery, avoid further deterioration of the fault and ensure the navigation safety of the ship.

Inventors

  • ZHAO LEI
  • CHEN DANDAN
  • CHEN XIAO
  • ZHU DEYANG

Assignees

  • 镇江船舶电器有限责任公司

Dates

Publication Date
20260512
Application Date
20250522

Claims (7)

  1. 1. The utility model provides a boats and ships battery system state monitoring circuit, its characterized in that includes chip U1, chip U1's communication interface passes through CAN communication sub-circuit and external equipment communication connection, chip U1's input is connected temperature acquisition sub-circuit's output and voltage and current acquisition sub-circuit's output respectively, voltage and current acquisition sub-circuit's input is connected boats and ships battery system, voltage and current acquisition sub-circuit is arranged in gathering real-time voltage and current among the boats and ships battery system, boats and ships battery system is connected to temperature acquisition sub-circuit's input, temperature acquisition sub-circuit is arranged in gathering the voltage value that boats and ships battery system inserted in the temperature acquisition sub-circuit.
  2. 2. The ship battery system state monitoring circuit according to claim 1, wherein the voltage and current acquisition subcircuit comprises a chip U2, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, an adjusting resistor R8, a connector U7 and a connector H1, a pin 7 and a pin 8 of the chip U2 are connected with the ship battery system, a pin 3 of the chip U2 is connected with one end of the resistor R6, the other end of the resistor R6 is simultaneously connected with the connector U7 and the resistor R7, the other end of the resistor R7 is simultaneously connected with the resistor R1 and the resistor R4, one end of the resistor R2 is connected with the resistor R1, the other end of the resistor R3 is simultaneously connected with the pin 2 of the chip U2, the other end of the resistor R3 is connected with the adjustable resistor R8, the other end of the resistor R4 is simultaneously connected with the one end of the resistor R5 and the connector H1, the other end of the resistor R5 is grounded, and the other end of the other resistor R5 is connected with the pin 1 of the PA1 of the chip U1 is connected with the pin 24.
  3. 3. The ship battery system state monitoring circuit according to claim 1, wherein the temperature acquisition subcircuit comprises a resistor R9, a resistor R10, a resistor R11, a resistor R12, a resistor R13, a resistor R14, a resistor R15, a resistor R16, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, a capacitor C7, a capacitor C8, a diode D1, a diode D2, a diode D3 and a diode D4, one end of the capacitor C1 is simultaneously connected with the resistor C2, the capacitor C3 and the capacitor C4, the other end of the capacitor C1 is simultaneously connected with the resistor R9 and the resistor R10, the other end of the resistor R9de is simultaneously connected with the resistor R11, the resistor R13 and the resistor R15, the other end of the resistor R10 is simultaneously connected with the pin 3 of the diode D1, the capacitor C5 and the pin 26 of the chip U1, the other end of the capacitor C5 is simultaneously connected with the pin 2, the other end of the capacitor C3 and the resistor C4 is simultaneously connected with the pin 3, the other end of the capacitor C3 and the resistor C4 is simultaneously connected with the other end of the resistor C2, the resistor R16 is simultaneously connected with the other end of the resistor C1 and the resistor R3 and the resistor R14, the other end of the resistor C1 is simultaneously connected with the resistor R2 and the resistor R16, the other end of the resistor is simultaneously connected with the resistor 2 and the other end of the resistor 2 and the resistor is connected with the resistor 2.
  4. 4. The ship battery system state monitoring circuit according to claim 1, wherein the CAN communication sub-circuit comprises a capacitor C9, a capacitor C10, a resistor R17, a resistor R18, a resistor R19, a chip U1, an inductor L1 and a diode D5, wherein the pin 1 of the chip U3 is connected to the pin 92 of the chip U1, the positive electrode of the diode D5 is connected to the pin 91 of the chip U1, the negative electrode of the diode D5 is connected to the pin 4 of the chip U3, one end of the capacitor C9 is connected to the pin 2 of the chip U3, the other end is connected to the pin 3 of the chip U3, the pin 1 of the inductor L1 is connected to the pin 7 of the chip U3, the pin 2 of the inductor L1 is connected to the pin 6 of the chip U3, the pin 3 of the inductor L1 is simultaneously connected to one end of the diode D6 and one end of the resistor R17, one end of the other end of the resistor R19 is connected to the pin 8 of the chip U3, and the other end of the resistor L1 is simultaneously connected to the pin 6 of the resistor R10 and the resistor R10 is simultaneously connected to the one end of the resistor R10.
  5. 5. The ship battery system state monitoring circuit according to claim 1, wherein the chip U1 is a STM32F105VCT6 type chip.
  6. 6. The ship battery system state monitoring circuit according to claim 2, wherein the chip U2 is a LM358DRG3 type chip.
  7. 7. A ship battery system status monitoring circuit according to claim 3, wherein the diodes D1, D2, D3 and D4 are all diodes of MMBD7000LT1G type.

Description

Ship battery system state monitoring circuit Technical Field The utility model belongs to the technical field of battery monitoring, and particularly relates to a ship battery system state monitoring circuit. Background The battery management system plays an extremely critical role in the battery system, and is just like the brain nerve of the power lithium ion battery system, and controls the running condition of the whole lithium ion battery power ship. The system can perform work such as unfolding detection, control and digital management on the battery pack, can effectively improve the service efficiency of the battery pack, and is one of the essential parts of a ship control system. However, when the ship sails in different sea areas and different seasons, the environmental temperature is different, the performance of the battery management system is directly influenced, and in the existing battery management system, the temperature of the battery management system is usually monitored in a form of a temperature sensor. Disclosure of utility model The utility model aims to provide a ship battery system state monitoring circuit which solves the problems existing in the prior art. The technical scheme is that the ship battery system state monitoring circuit comprises a chip U1, a communication interface of the chip U1 is in communication connection with external equipment through a CAN communication sub-circuit, an input end of the chip U1 is respectively connected with an output end of a temperature acquisition sub-circuit and an output end of a voltage and current acquisition sub-circuit, an input end of the voltage and current acquisition sub-circuit is connected with a ship battery system, the voltage and current acquisition sub-circuit is used for acquiring real-time voltage and current in the ship battery system, an input end of the temperature acquisition sub-circuit is connected with the ship battery system, and the temperature acquisition sub-circuit is used for acquiring a voltage value of the ship battery system connected into the temperature acquisition sub-circuit. Preferably, the voltage and current collecting sub-circuit comprises a chip U2, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a regulating resistor R8, a connector U7 and a connector H1, wherein a pin 7 and a pin 8 of the chip U2 are connected with a ship battery system, a pin 3 of the chip U2 is connected with one end of the resistor R6, the other end of the resistor R6 is simultaneously connected with the connector U7 and the resistor R7, the other end of the resistor R7 is simultaneously connected with the resistor R1 and the resistor R4, one end of the resistor R2 is connected with the resistor R1, the other end of the resistor R3 is simultaneously connected with the pin 2 of the chip U2, the other end of the resistor R8 is connected with the pin 1 of the chip U2, the other end of the resistor R4 is simultaneously connected with one end of the resistor R5 and the connector H1, the other end of the resistor R5 is grounded, and the PA1 pin of the connector H1 is connected with the pin 24 of the chip U1. Preferably, the temperature acquisition sub-circuit includes a resistor R9, a resistor R10, a resistor R11, a resistor R12, a resistor R13, a resistor R14, a resistor R15, a resistor R16, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, a capacitor C7, a capacitor C8, a diode D1, a diode D2, a diode D3 and a diode D4, wherein one end of the capacitor C1 is simultaneously connected with the capacitor C2, the capacitor C3 and the capacitor C4, and simultaneously, through TS 1-the voltage value of the resistor of the ship battery system, the other end of the capacitor C1 is simultaneously connected with the resistor R10, and simultaneously, through TS1+ the voltage value of the resistor of the ship battery system, the other end of the resistor R9de is simultaneously connected with the resistor R11, the other end of the resistor R15, the other end of the resistor R10 is simultaneously connected with the pin 3 of the diode D1, the capacitor C5 and the pin 26 of the chip U1, the other end of the diode C5 is simultaneously grounded, the pin 1 of the diode D1 is simultaneously connected with the pin 3, the other end of the diode D2 is simultaneously connected with the pin 3 of the capacitor C2, the other end of the diode D2, the pin of the diode D2 and the other end of the resistor C4, the resistor 2 is simultaneously connected with the other end of the resistor 2, and the other end of the resistor 2, and the resistor 3, and the other end of the resistor 3, and the resistor 3 are simultaneously connected with the other end of the resistor 3, and the resistor 3. Preferably, the CAN communication sub-circuit includes a capacitor C9, a capacitor C10, a resistor R17, a resistor R18, a resistor R19, a chip U1, an inductor L1 and a diode D