GPS intelligent handle for lithium battery

Abstract

The utility model relates to the technical field of battery management, and discloses a GPS intelligent handle for a lithium battery, which comprises a 4G module, an information acquisition module, an indicating lamp, a protection circuit and the lithium battery, the 4G module is used for controlling task scheduling of the whole system, and the lithium battery supplies power to the whole system. The protection circuit comprises a hot plug protection circuit, a software protection board, a DC-DC power supply module and a serial port hot plug protection circuit, the information acquisition module comprises a voltage acquisition circuit, an attitude sensor and a temperature acquisition circuit, and the indication lamps comprise a power supply indication lamp, a network indication lamp and a positioning indication lamp. According to the GPS intelligent handle for the lithium battery, temperature information and battery voltage information of the lithium battery can be collected in real time through the attitude sensor, the temperature collection circuit and the voltage collection circuit, the collected information is uploaded to the platform in real time through the 4G module, a user can check the battery information through the platform, and hidden danger of the battery can be conveniently found and checked in time.

Description

Technical Field

[0001] The utility model relates to the technical field of battery management, in particular to a GPS smart handle for lithium batteries. Background Art

[0002] At present, with the continuous advancement of energy-saving and environmental protection concepts, electric vehicles have gradually become a more popular means of travel for people, especially in cities with traffic congestion. During rush hours, choosing electric bicycles or electric tricycles is faster than driving. At the same time, takeaway boys and couriers generally choose electric two-wheeled or three-wheeled vehicles for goods delivery. However, electric vehicles need to be charged regularly during use. Since many communities and office areas have few or even no charging facilities, it is very inconvenient to charge electric vehicles. For this reason, many people choose to charge electric vehicles or batteries at home, or privately pull wires in the corridor to charge, which makes safety accidents caused by improper charging occur frequently, seriously affecting people's safety and causing great property losses.

[0003] In order to solve the above technical problems, the Chinese invention patent with application publication number CN112288541A ​​discloses a battery rental management platform, which delivers batteries to users by leasing and can monitor the battery usage status in real time. When the battery is abnormal, the platform can obtain alarm data in the first time, so as to take timely and effective measures to ensure the safety of the battery. The battery replacement service provided by the platform can more conveniently replace the battery, effectively avoiding the safety hazards caused by charging at home and charging privately. The platform can provide more convenient and safe battery management services for tram users;

[0004] Although the technical solution provided by this invention patent solves the problem that many people currently charge electric vehicles or batteries at home, which creates safety hazards and even frequent safety accidents, some batteries in electric vehicles do not have the ability to communicate directly with the device in order to reduce costs, such as lead-acid batteries. The above technical solution is not convenient for monitoring the voltage and temperature of such batteries. When the battery has an abnormal condition, it cannot be discovered in time and effective countermeasures cannot be taken, which can easily lead to safety hazards. Utility Model Content

[0005] The purpose of the utility model is to provide a GPS smart handle for lithium batteries to solve the problems raised in the above background technology.

[0006] The present application embodiment adopts the following technical solutions:

[0007] A GPS smart handle for lithium battery, comprising a 4G module, an information collection module, an indicator light, a protection circuit and a lithium battery;

[0008] The 4G module is used to control the task scheduling of the entire system, and the lithium battery is used to power the entire system;

[0009] The protection circuit includes a hot-swap protection circuit, a software protection board, a DC-DC power supply module and a serial port hot-swap protection circuit;

[0010] The information acquisition module includes a voltage acquisition circuit, a posture sensor and a temperature acquisition circuit;

[0011] The indicator lights include a power indicator light, a network indicator light and a positioning indicator light;

[0012] The output end of the lithium battery is electrically connected to the input end of the hot-swap protection circuit, the hot-swap protection circuit is electrically connected to the DC-DC power module, the DC-DC power module can stabilize the voltage input to the hot-swap protection circuit to 3.8V, the DC-DC power module is electrically connected to the 4G module and the power indicator light after voltage stabilization, and the 4G module is electrically connected to the network indicator light and the positioning indicator light respectively;

[0013] The output end of the hot-swap protection circuit is electrically connected to the voltage acquisition circuit, and the voltage acquisition circuit, the attitude sensor and the temperature acquisition circuit are respectively communicatively connected to the 4G module.

[0014] Beneficial effects:

[0015] The utility model can collect temperature information and battery voltage information of lithium batteries in real time through attitude sensors, temperature collection circuits and voltage collection circuits, and upload the collected information to the platform in real time through a 4G module. Users can view battery information through the platform, which is convenient for timely discovery and troubleshooting of battery hazards and protects the lives and property of users.

[0016] Preferably, the specific model of the chip in the DC-DC power module is: SL3036H, and the DC-DC power module supplies power after reducing the voltage of the lithium battery to 3.8V.

[0017] Preferably, the model of the main control chip in the 4G module is: EC800M-CN, and the 4G module can be used for 4G communication and GPS positioning.

[0018] Preferably, the voltage acquisition circuit uses high-precision and low-temperature drift precision resistors, and the specific models of the resistors are: 0603WAF4994T5E and RT0603BRD07100KL. The 0603WAF4994T5E and RT0603BRD07100KL voltage divider and RC filter circuit provide a stable battery voltage acquisition function for the locator.

[0019] Preferably, the temperature acquisition circuit realizes remote data transmission through a 4G module, and the temperature acquisition circuit adopts an NTC thermistor to obtain the temperature information of the battery.

[0020] Preferably, the chip model used in the attitude sensor is: SC7A20TR, and the attitude information of the battery can be obtained in real time through the attitude sensor and uploaded to the 4G module.

[0021] Preferably, the serial port hot-plug protection circuit can prevent the user from hot-plugging the locator interface and causing damage to the locator. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0023] Figure 1 This is the overall hardware block diagram of the utility model;

[0024] Figure 2 This is a schematic diagram of the first part of the power supply circuit of the 4G module of the utility model;

[0025] Figure 3 This is a schematic diagram of the second power supply circuit of the 4G module of the utility model;

[0026] Figure 4 This is a schematic diagram of the power supply circuit of the third part of the 4G module of the utility model;

[0027] Figure 5 This is a schematic diagram of the fourth power supply circuit of the 4G module of the utility model;

[0028] Figure 6 This is a schematic diagram of the power supply circuit of the first part of the serial port level conversion circuit of the utility model;

[0029] Figure 7 This is a schematic diagram of the power supply circuit of the second part of the serial port level conversion circuit of the utility model;

[0030] Figure 8 It is a schematic diagram of the power supply circuit of the energy storage filter circuit of the utility model;

[0031] Fig. 9 This is a schematic diagram of the power supply circuit of the posture sensor of the utility model;

[0032] Fig.10 This is a schematic diagram of the power supply circuit of the 4G antenna of the utility model;

[0033] Fig.11 This is a schematic diagram of the power supply circuit of the GPS antenna of the utility model;

[0034] Fig.12 The schematic diagram of the power supply circuit for module reset of the utility model;

[0035] Fig.13 This is a schematic diagram of the power supply circuit of the forced download mode of the utility model;

[0036] Fig.14 This is a schematic diagram of the power supply circuit of the reserved indicator light of the utility model;

[0037] Fig.15 This is a schematic diagram of the power supply circuit of the network status indicator light of the utility model;

[0038] Fig.16 This is a schematic diagram of the power supply circuit of the operating indicator light of the utility model;

[0039] Fig.17 This is a schematic diagram of the power supply circuit of the SIM card of the utility model;

[0040] Fig.18 It is a schematic diagram of the power supply circuit of the temperature acquisition circuit of the utility model;

[0041] Fig.19 It is a schematic diagram of the power supply circuit of the power indicator light of the utility model;

[0042] Fig. 20 It is the principle diagram of the power supply circuit for voltage collection of the utility model;

[0043] Fig.21 This is a schematic diagram of the power supply circuit of the DC-DC power supply module of the present utility model. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0045] The technical solutions provided by various embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0046] See also Figure 1-21 , a GPS smart handle for lithium battery, including a 4G module, an information collection module, an indicator light, a protection circuit and a lithium battery;

[0047] The lithium battery powers the entire system, and the 4G module is used to control the task scheduling of the entire system. The 4G module has 4G communication and GPS positioning functions, and can regularly report battery location information to prevent battery loss. The attitude sensor can assist the GPS positioning function of the 4G module to optimize the battery trajectory. At the same time, it can use positioning information to find the nearest battery replacement site for users with low battery power, making it convenient for users to replace batteries.

[0048] The protection circuit includes a hot-swap protection circuit, a software protection board, a DC-DC power supply module and a serial port hot-swap protection circuit;

[0049] The information acquisition module includes a voltage acquisition circuit, a posture sensor and a temperature acquisition circuit;

[0050] The indicator lights include power indicator light, network indicator light and positioning indicator light;

[0051] The output end of the lithium battery is electrically connected to the input end of the hot-swap protection circuit, the hot-swap protection circuit is electrically connected to the DC-DC power module, the DC-DC power module can stabilize the voltage input to the hot-swap protection circuit to 3.8V, the DC-DC power module is electrically connected to the 4G module and the power indicator light after voltage stabilization, and the 4G module is electrically connected to the network indicator light and the positioning indicator light respectively;

[0052] The output end of the hot-swap protection circuit is electrically connected to the voltage acquisition circuit. The voltage acquisition circuit, attitude sensor and temperature acquisition circuit are respectively connected to the 4G module. The system itself has an OTA upgrade function, which can remotely upgrade the system during idle time to optimize the user experience. At the same time, the system can perform OTA upgrades on the docking protection board on the lithium battery to facilitate battery maintenance and reduce the risk of accidents caused by disassembly and installation of batteries.

[0053] The specific model of the chip in the DC-DC power module is: SL3036H. The DC-DC power module reduces the voltage of the lithium battery to 3.8V for power supply. The power supply interface reduces the hot plug voltage impact through a combination of a self-recovery fuse (JK130-025), a transient voltage suppression diode (SMBJ90CA) and a 10uF 100V high-frequency capacitor to protect the power chip. At the same time, the diode M7 prevents the interface from being reversed and burning the board;

[0054] The model of the main control chip in the 4G module is: EC800M-CN. The 4G module can be used for 4G communication and GPS positioning. The battery information is obtained by connecting to the smart protection board and uploaded to the platform. Users can view the battery information through the platform. It is convenient to timely discover and troubleshoot battery hazards to protect the lives and property of users. At the same time, by analyzing battery data and service life, you can select lithium batteries with appropriate capacity, voltage, and brand to improve battery quality. The battery can be charged and discharged through the platform or applet. When there are hidden dangers or special circumstances, the battery can be remotely disabled;

[0055] The voltage acquisition circuit uses high-precision and low-temperature drift precision resistors. The specific resistor models are: 0603WAF4994T5E and RT0603BRD07100KL. The 0603WAF4994T5E and RT0603BRD07100KL voltage divider and RC filter circuit provide a stable battery voltage acquisition function for the locator.

[0056] The temperature acquisition circuit realizes remote data transmission through the 4G module. The temperature acquisition circuit uses an NTC thermistor to obtain the temperature information of the battery, thereby remotely monitoring the battery temperature and performing corresponding control and management;

[0057] The chip model used in the attitude sensor is: SC7A20TR. The attitude sensor can obtain the attitude information of the battery in real time and upload it to the 4G module. The movement and stop status of the battery can be judged by the battery attitude and GPS positioning, and then the map route can be optimized;

[0058] The serial port hot-swap protection circuit can prevent the user from damaging the locator by hot-swapped the locator interface. The function of the two diodes D22 and D17 is to prevent the leakage current caused by hot-swapped devices without power supply to damage the subsequent circuit; Test point 14 is the pull-up part of the UART_TX interface of the device. The pull-up resistor R25 and the diode D16 are controlled by LTV217. When the interface is not fully contacted and the device is not working properly, it will not be pulled up, thereby avoiding leakage current from burning the subsequent circuit. At the same time, it is compatible with the communication abnormality caused by the serial port isolation without pull-up on the protection boards of different manufacturers;

[0059] When the utility model is in use, the temperature information and battery voltage information of the lithium battery can be collected in real time through the attitude sensor, the temperature collection circuit and the voltage collection circuit, and the collected information can be uploaded to the platform in real time through the 4G module. The user can view the battery information through the platform, which is convenient for timely discovery and troubleshooting of battery hidden dangers, and protects the life and property safety of the user;

[0060] It greatly facilitates the further management of batteries by battery rental customers, allowing them to understand the battery status in real time, adjust the protection board parameters remotely, and track the battery location to protect the safety of customer property. At the same time, the device and the docking protection board can be upgraded OTA on the platform, which is convenient for maintenance and upgrades. For lithium batteries and hardware protection board batteries without communication functions, the device can obtain the two basic information of battery voltage and temperature through the voltage acquisition circuit and temperature acquisition circuit, and provide positioning services at the same time.

[0061] In this embodiment, the specific pin connection relationship between the 4G module, power supply circuit, voltage acquisition circuit, attitude sensor, temperature acquisition circuit and DC-DC power supply module can be connected according to the pins shown in the accompanying drawings; and the connection relationship between other circuits can also be connected according to the pins shown in the accompanying drawings. The above-mentioned pin connection relationship can be determined one by one by those skilled in the art according to the pin correspondence in the accompanying drawings, and will not be repeated here.

[0062] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A GPS smart handle for lithium battery, characterized in that: Including 4G module, information collection module, indicator light, protection circuit and lithium battery; The 4G module is used to control the task scheduling of the entire system; The protection circuit includes a hot-swap protection circuit, a software protection board, a DC-DC power supply module and a serial port hot-swap protection circuit; The information acquisition module includes a voltage acquisition circuit, a posture sensor and a temperature acquisition circuit; The indicator lights include a power indicator light, a network indicator light and a positioning indicator light; The output end of the lithium battery is electrically connected to the input end of the hot-swap protection circuit, the hot-swap protection circuit is electrically connected to the DC-DC power module, the DC-DC power module can stabilize the voltage input to the hot-swap protection circuit to 3.8V, the DC-DC power module is electrically connected to the 4G module and the power indicator light after voltage stabilization, and the 4G module is electrically connected to the network indicator light and the positioning indicator light respectively; The output end of the hot-swap protection circuit is electrically connected to the voltage acquisition circuit, and the voltage acquisition circuit, the attitude sensor and the temperature acquisition circuit are respectively communicatively connected to the 4G module.

2. The GPS smart handle for lithium battery according to claim 1, characterized in that: The specific model of the chip in the DC-DC power module is: SL3036H. The DC-DC power module reduces the voltage of the lithium battery to 3.8V for power supply.

3. The GPS smart handle for lithium battery according to claim 1, characterized in that: The model of the main control chip in the 4G module is: EC800M-CN, and the 4G module can be used for 4G communication and GPS positioning.

4. The GPS smart handle for lithium battery according to claim 1, characterized in that: The resistor models used in the voltage acquisition circuit are: 0603WAF4994T5E and RT0603BRD07100KL.

5. The GPS smart handle for lithium battery according to claim 1, characterized in that: The temperature acquisition circuit realizes remote data transmission through a 4G module, and the temperature acquisition circuit adopts an NTC thermistor to obtain the temperature information of the battery.

6. The GPS smart handle for lithium battery according to claim 1, characterized in that: The chip model used in the attitude sensor is: SC7A20TR. The attitude sensor can obtain the attitude information of the battery in real time and upload it to the 4G module.

7. The GPS smart handle for lithium battery according to claim 1, characterized in that: The serial port hot-plug protection circuit can prevent the user from hot-plugging the locator interface and causing damage to the locator.

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