CN219505878U

CN219505878U - Lithium battery monitoring system, lithium battery and AGV trolley

Info

Publication number: CN219505878U
Application number: CN202222559834.9U
Authority: CN
Inventors: 赵殿云; 马建平; 郭启明; 彭冠群; 高海洋
Original assignee: Shandong Sacred Sun Power Sources Co Ltd
Current assignee: Shandong Sacred Sun Power Sources Co Ltd
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2023-08-11
Anticipated expiration: 2032-09-27

Abstract

The utility model provides a lithium battery monitoring system, a lithium battery and an AGV, wherein the lithium battery monitoring system comprises a processor, a battery protection module, a battery monitoring module, an NB-IoT communication module, a positioning navigation module, a server and a mobile terminal; the battery protection module, the battery monitoring module, the NB-IoT communication module and the positioning navigation module are respectively and electrically connected to the processor; the server is wirelessly connected with the NB-IoT communication module, and the mobile terminal is wirelessly connected with the server; the battery monitoring module comprises a turnover monitoring unit; after the processor acquires the lithium battery monitoring data of the AGV trolley through the battery monitoring module, the lithium battery monitoring data is transmitted to the server through the NB-IoT communication module and further transmitted to the mobile terminal. The utility model solves the problem that the lithium battery monitoring system for the AGV trolley can not monitor the risk of rollover explosion of the lithium battery for the AGV trolley.

Description

Lithium battery monitoring system, lithium battery and AGV trolley

Technical Field

The utility model relates to the technical field of lithium batteries, in particular to a lithium battery monitoring system, a lithium battery and an AGV.

Background

In the factory production line of the manufacturing industry, the application of the AGV trolley is very popular, and with the rapid development of lithium battery technology, the power energy of the AGV trolley is changed from mainly using a lead-acid storage battery to using a lithium battery.

Although lithium batteries have many advantages, the greatest disadvantage of lithium batteries is the safety risk, which is likely to cause an explosion if improperly handled during use. Especially, in the case of an AGV used in a factory production environment, the AGV is extremely liable to be overturned due to collision and the like, and practice shows that the lithium battery is likely to explode after severe collision.

However, the lithium battery system of the current AGV trolley cannot monitor the rollover caused by collision and other reasons, so that the AGV trolley has potential safety hazards.

Disclosure of Invention

In view of the above, the utility model provides a lithium battery monitoring system, a lithium battery and an AGV trolley, so as to solve the problem that the existing lithium battery monitoring system for the AGV trolley cannot monitor the risk of rollover explosion of the lithium battery for the AGV trolley.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

in a first aspect, the present utility model provides a lithium battery monitoring system, comprising a processor, a battery protection module, a battery monitoring module, an NB-IoT communication module, a positioning navigation module, a server, and a mobile terminal; the battery protection module, the battery monitoring module, the NB-IoT communication module and the positioning navigation module are respectively and electrically connected to the processor; the server is wirelessly connected with the NB-IoT communication module, and the mobile terminal is wirelessly connected with the server; the battery monitoring module comprises a turnover monitoring unit; after the processor acquires the lithium battery monitoring data of the AGV trolley through the battery monitoring module, the lithium battery monitoring data is transmitted to the server through the NB-IoT communication module and further transmitted to the mobile terminal.

Preferably, the rollover monitoring unit is a three-axis digital accelerometer sensor.

Preferably, the battery monitoring module further comprises a humidity sensor.

Preferably, the battery protection module includes an over-temperature protection unit, and the over-temperature protection unit is electrically connected to the processor.

Preferably, the battery protection module includes an overcurrent protection unit, and the overcurrent protection unit is electrically connected to the processor.

Preferably, the system further comprises an output control module, and the battery protection module further comprises an overcharge and overdischarge protection unit which is electrically connected to the processor through the output control module.

Preferably, the battery protection module further comprises an equalization protection unit, and the equalization protection unit is electrically connected to the processor through the output control module.

Preferably, the positioning navigation module is a BD/GPS positioning device.

In a second aspect, the utility model provides a lithium battery applied to an AGV trolley, comprising a lithium battery body and the lithium battery monitoring system according to the first aspect.

In a third aspect, the present utility model provides an AGV trolley comprising a lithium battery body and a lithium battery monitoring system according to the first aspect.

The utility model designs a lithium battery monitoring system for an AGV, which is used for collecting collision sensor data through a processor and monitoring whether the car overturns during running. Meanwhile, the NB-IoT communication device is designed in the monitoring system, collected data are transmitted in real time through the network, so that the AGV becomes an internet of things node, the development requirement of the industrial Internet is met, the data can be acquired in time, and the operation safety of the AGV is guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an overall frame diagram of a lithium battery monitoring system according to an embodiment of the present utility model;

fig. 2 is a circuit diagram of a battery monitoring module according to an embodiment of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The AGV car is a transport vehicle equipped with an automatic navigation device such as electromagnetic or optical, capable of traveling along a predetermined navigation path, and having safety protection and various transfer functions. In industrial application, a carrier for a driver is not needed, and a rechargeable storage battery or a lithium battery is used as a power source. Generally, the traveling path and behavior of the vehicle can be controlled by a computer, or the traveling path can be established by using an electromagnetic track, the electromagnetic track is adhered to the floor, and the vehicle is moved and operated by the information brought by the electromagnetic track.

The lithium battery monitoring system of the embodiment of the utility model, as shown in fig. 1, generally comprises a processor 1, a battery protection module 2, a battery monitoring module 3, an NB-IoT communication module 5, a positioning navigation module, a server 6 and a mobile terminal 7.

In some embodiments of the present utility model, as shown in fig. 1, the battery protection module 2 includes an overcharge and overdischarge protection unit 23, an equalization protection unit 24, an over-temperature protection unit 21, and an over-current protection unit 22, and in a specific implementation, as shown in fig. 1, the system further includes an output control module 4. The overcharge and overdischarge protection unit 23 and the equalization protection unit 24 are respectively connected with the output control module 4, and the output control module 4 is connected with the processor 1. Further, the over-temperature protection unit 21 and the over-current protection unit 22 are directly connected to the processor 1, respectively.

Based on this, the battery protection module 2 provided by the embodiment of the utility model can protect the lithium battery in real time, and once the conditions of overcharge, overdischarge, overtemperature, overcurrent and the like occur, the processor 1 controls the lithium battery to stop charging and discharging through the output control module 4, or the output control module 4 directly controls the lithium battery to stop charging and discharging.

Optionally, the overcharge and overdischarge protection unit 23 in the embodiment of the present utility model is implemented using the control chip HY 2112. In specific implementation, any control chip capable of implementing the function of the overcharge and overdischarge protection unit 23 in the embodiment of the present utility model is within the scope of the present utility model.

Optionally, the equalization protecting unit 24 in the embodiment of the present utility model is implemented using the control chip HY 2112. In a specific implementation, any control chip capable of implementing the function of the equalization protection unit 24 in the embodiment of the present utility model is within the scope of the present utility model.

Alternatively, the output control module 4 in the embodiment of the present utility model is implemented using a bq76200 driver chip. In a specific implementation, any driver chip capable of implementing the function of the output control module 4 in the embodiment of the present utility model is within the scope of the present utility model.

In some of the embodiments of the present utility model, as shown in fig. 1, the battery monitoring module 3 includes a roll-over monitoring unit, a humidity sensor 32, a voltage sensor 34, a current sensor 35, and a temperature sensor 33. Further, the overturn monitoring unit provided by the embodiment of the utility model is a tri-axis digital accelerometer sensor 31. In a specific implementation, the application scenario of the AGV trolley is considered to include a line production environment with higher humidity, and one of the characteristics of the lithium battery is that if the lithium battery is partially immersed in water, the possibility of explosion is increased, so the embodiment of the present utility model provides the humidity sensor 32 in the battery monitoring module 3.

Fig. 2 is a circuit diagram of a battery monitoring module according to an embodiment of the present utility model, and as shown in fig. 2, the embodiment of the present utility model may employ a battery monitoring module based on ML5238, in addition to which a tri-axial digital accelerometer sensor 31 is externally connected. In specific implementation, the number of the series connection sections of the chip supporting battery cells is 8 to 16, and based on the chip, the embodiment of the utility model can automatically identify the short circuit phenomenon, thereby greatly improving the safety of the lithium battery pack.

In some embodiments of the present utility model, the positioning navigation module is a BD/GPS positioning device 8.

In some embodiments of the present utility model, the processor 1 uses STM32F103RCT6 as the main control microcontroller, based on which the processor can collect 17 battery voltages; the PA2/U2 RX and the PA2/U2 TX of the processor 1 are connected with the NB-IoT communication module 5 and are communicated with the NB-IoT communication module 5; PB10/U3RX and PB11/U3 TX are connected to BD/GPS positioning device 8, and communicate with BD/GPS positioning device 8; PA1, PA4 and connectable two thermistors, the function of the temperature sensor 33 is realized by monitoring the resistance change of the two thermistors; the PA5 is connected with a humidity resistor, and reports whether the battery box is immersed or not through the resistance change of the humidity resistor, so that whether the battery power output is turned off or not is determined, and the function of the humidity sensor 32 is realized; the PC9, PC8 and PC4 read the three-axis digital accelerometer sensor 31 to determine whether the AGV is turned over. In specific implementation, any master control microcontroller capable of implementing the functions of the processor 1 in the embodiment of the present utility model is within the scope of the present utility model.

Based on this, the processor 1 acquires the AGV car lithium battery monitoring data through the battery monitoring module 3, and then transmits the data to the server 6 through the NB-IoT communication module 5, and further transmits the data to the mobile terminal 7.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The lithium battery monitoring system is characterized by comprising a processor, a battery protection module, a battery monitoring module, an NB-IoT communication module, a positioning navigation module, a server and a mobile terminal; the battery protection module, the battery monitoring module, the NB-IoT communication module and the positioning navigation module are respectively and electrically connected to the processor; the server is wirelessly connected to the NB-IoT communication module, and the mobile terminal is wirelessly connected to the server; the battery monitoring module comprises a turnover monitoring unit;

after the processor acquires the lithium battery monitoring data of the AGV trolley through the battery monitoring module, the lithium battery monitoring data is transmitted to the server through the NB-IoT communication module and further transmitted to the mobile terminal.

2. The lithium battery monitoring system of claim 1, wherein the rollover monitoring unit is a three-axis digital accelerometer sensor.

3. The lithium battery monitoring system of claim 1, wherein the battery monitoring module further comprises a humidity sensor.

4. The lithium battery monitoring system of claim 1, wherein the battery protection module comprises an over-temperature protection unit electrically connected to the processor.

5. The lithium battery monitoring system of claim 4, wherein the battery protection module comprises an over-current protection unit electrically connected to the processor.

6. The lithium battery monitoring system of claim 5, further comprising an output control module, wherein the battery protection module further comprises an overcharge and overdischarge protection unit electrically connected to the processor through the output control module.

7. The lithium battery monitoring system of claim 6, wherein the battery protection module further comprises an equalization protection unit electrically connected to the processor through the output control module.

8. The lithium battery monitoring system of claim 1, wherein the positioning navigation module is a BD/GPS positioning device.

9. A lithium battery, characterized in that it is applied to an AGV trolley, comprising a lithium battery body and a lithium battery monitoring system according to any one of claims 1-8.

10. An AGV trolley comprising a lithium battery body and a lithium battery monitoring system according to any one of claims 1-8.