CN217656462U - Lithium battery management system - Google Patents

Abstract

The utility model discloses a lithium battery management system, which comprises a main body and a battery pack, wherein a charging joint is arranged outside the battery pack, and the battery pack comprises a main battery and a standby battery; the sensor is positioned at one side close to the charging connector and used for sending a current signal; the collector is positioned inside the main body and close to one side of the battery pack and used for receiving the current signal and sending a collected signal; the central processing unit is positioned in the middle of the main body and used for receiving the collected signals from the collector, sending the processed signals and determining the signals; the current branch controller is positioned at one side close to the collector and used for receiving a processing signal from the central processing unit; the motor is positioned at one end close to the current branch controller and is used for receiving the determination signal from the central processing unit and sending an electric signal; the main and standby power supply switching module is located at one end close to the sensor and used for receiving electric signals from the motor.

Description

Lithium battery management system

Technical Field

The utility model relates to a multi-media field specifically is a lithium battery management system.

Background

With the increasing shortage of energy, the increasing price of petroleum and the increasing severity of urban environmental pollution, the development and utilization of new energy for replacing petroleum are more and more emphasized by governments of various countries, and in a new energy system, a battery system is an indispensable important component. In recent years, electric bicycles, hybrid electric vehicles, fuel power battery vehicles and the like which take lithium ion batteries as power are receiving more and more attention in the market, and the application of power lithium batteries in the field of traffic has important significance in reducing emission of greenhouse gases, air pollution and application of new energy, wherein the lithium ion batteries are receiving more and more attention from people with advantages of high energy density, high repeated cycle use frequency, light weight, green and the like, so the lithium ion batteries are widely applied to portable handheld devices such as mobile phones, notebook computers, electric tools and the like, and begin to enter high-power applications such as electric vehicles, electric vehicles and the like, and become a hotspot in the development of global electric vehicles.

A lithium Battery Management System (BMS) determines the state of the whole battery system by detecting the state of each single battery in a power battery pack, and performs corresponding control adjustment and strategy implementation on the power battery system according to the states of the single batteries to realize charging and discharging management on the power lithium battery system and each single battery so as to ensure that the power battery system safely and stably operates. The BMS generally performs data information communication between modules by using an internal CAN bus technology, and based on the functions of each module, the BMS CAN detect parameters such as voltage, current, temperature, and the like of the power lithium battery in real time, perform thermal management, balance management, high voltage and insulation detection, and the like on the power battery, and CAN calculate the remaining capacity, charge and discharge power, and SOC & SOH states of the power battery.

The current fast charge mode is advancing gradually, but in a period, two kinds of charging methods of fast charge and slow charge can be paralleled, the vehicle user must make a decision when selecting fast charge and slow charge, this means to make a judgement by user self, can bring very big uncertainty from this, if there is misuse fast charge, or user alternate use fast charge slow charge, because the advantage of fast charge is efficient, the charge time is short, but fast charge is big to car voltage and power requirement, also can lead to battery temperature to rise to accelerate, cause harmful effects to the battery, even have the risk of starting a fire.

SUMMERY OF THE UTILITY MODEL

The application provides an elevator multimedia information issuing system for to there being the misuse, or the user uses in turn and fills slowly soon, lead to the battery temperature to rise to accelerate, cause harmful effects to the battery, the technical problem who even fires.

In view of the above problems, the present application provides an elevator multimedia information publishing system, which includes a main body and a battery pack, wherein a charging connector is arranged at the outer side of the battery pack, and the battery pack includes a main battery and a backup battery; the sensor is positioned at one side close to the charging connector and used for sending a current signal; the collector is positioned inside the main body and close to one side of the battery pack and used for receiving the current signal and sending a collected signal; the central processing unit is positioned in the middle of the main body and used for receiving the collected signals from the collector, sending the processed signals and determining the signals; the current branch controller is positioned at one side close to the collector and used for receiving a processing signal from the central processing unit; the motor is positioned at one end close to the current branch controller and used for receiving the determination signal from the central processing unit and sending an electric signal; the main power supply switching module is positioned at one end close to the sensor and used for receiving an electric signal from the motor.

One or more technical solutions provided in the present application have at least the following technical effects or advantages:

the embodiment of the application is through the electric current of sensor response access for filling soon or filling slowly, sensor transmission current signal gives the collector, the collector sends the acquisition signal and gives central processing unit, and then central processing unit sends the processing signal and gives the electric current branch controller, the electric current branch controller will carry the electric current of filling soon that comes in from the joint that charges and carry half the electric current to reserve battery through the electric current branch pipe, the speed of the access battery of electric current has been reduced, insert reserve battery with branch's electric current simultaneously, the technical problem of the phenomenon that car battery caused the fire even because the reduction of the fast charge life-span has been solved.

The above description is only an overview of the technical solutions of the present application, and the present application may be implemented in accordance with the content of the description so as to make the technical means of the present application more clearly understood, and the detailed description of the present application will be given below in order to make the above and other objects, features, and advantages of the present application more clearly understood.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic diagram of a system provided herein;

FIG. 2 is a cross-sectional view provided herein;

FIG. 3 is a front view provided by the present application;

fig. 4 is a top view provided by the present application.

In the figure: 1. a main body; 2. a battery pack; 3. a sensor; 4. a collector; 5. a central processing unit; 6. a current branch controller; 7. a main power supply and standby power supply switching module; 8. a charging connector; 9. a main battery; 10. a backup battery; 11. a motor; 12. a CAN bus.

Detailed Description

This application is through providing a lithium battery management system for to there being the misuse, or the user uses in turn and fills slowly soon, lead to the battery temperature to rise to accelerate, cause harmful effects to the battery, the technical problem who even fires.

In view of the above technical problems, the technical solution provided by the present application has the following general idea:

the embodiment of the application is through the electric current of sensor response access for filling soon or filling slowly, sensor transmission current signal gives the collector, the collector sends the acquisition signal and gives central processing unit, and then central processing unit sends the processing signal and gives current branch controller, current branch controller will carry the electric current of filling soon that comes in from the joint that charges and carry half electric current to reserve battery through the current branch pipe, the speed of the access battery of electric current has been reduced, insert reserve battery with branch electric current simultaneously, the technical problem of the phenomenon that car battery caused the fire even because the reduction life-span of filling soon has been solved.

Having described the basic principles of the present application, the technical solutions in the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments of the present application, and the present application is not limited to the exemplary embodiments described herein. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application. It should be further noted that, for the convenience of description, only some but not all of the relevant portions of the present application are shown in the drawings.

As shown in fig. 1, the present application provides an elevator multimedia information publishing system, which includes a main body 1 and a battery pack 2, a charging connector 8 is arranged outside the battery pack 2, and the battery pack 2 includes a main battery 9 and a backup battery 10; the sensor 3 is positioned at one side close to the charging connector 8 and used for sending a current signal; the collector 4 is positioned inside the main body 1 and close to one side of the battery pack 2 and is used for receiving a current signal and sending a collected signal; the central processing unit 5 is positioned in the middle of the main body 1 and used for receiving the collected signals from the collector 4, sending the processed signals and determining the signals; the current branch controller 6 is positioned at one side close to the collector 4 and is used for receiving the processing signal from the central processing unit 5; the motor 11 is positioned at one end close to the current branch controller 6 and is used for receiving a determination signal from the central processing unit 5 and sending an electric signal; the main/standby power switching module 7 is located near one end of the sensor 3 and is used for receiving an electrical signal from the motor 11.

When a quick-charging plug is inserted into a charging connector 8, a sensor 3 sends a current signal to a collector 4, when the collector 4 judges that the access current information is quick-charging, the collection signal is sent to a central processing unit 5, the central processing unit 5 sends a processing signal to a current branch controller 6, a current branch pipe is released and leads to a standby battery 10, half of the current of the quick-charging current sent from the charging connector 8 is sent to the standby battery 10 through a current branch, the power transmission rate is reduced, and the power supply is prevented from being damaged due to overlarge charging rate.

Illustratively, when a certain user drives an electric automobile and the power supply is insufficient, a quick charge is used for charging the automobile battery, but the service life of the battery is shortened by using the quick charge for a long time, the sensor 3 sends a current signal to the collector 4, the collector 4 detects that the current inserted into the charging connector 8 belongs to the quick charge current, sends a collecting signal to the central processing unit 5, the central processing unit 5 sends a processing signal to the current branch controller 6 to branch the current entering through the quick charge, the rate of the current is reduced to the maximum extent, and meanwhile, the current accessed through the branch flows to the standby battery 10, so that the condition that the main power supply is exhausted but the charging is not performed is avoided.

Another exemplary situation is that when a user drives an electric vehicle and the power supply is insufficient, the battery of the vehicle is charged by slow charging, the sensor 3 sends a current signal to the collector 4, the collector 4 judges that the current is slow charging, the current signal is sent to the central processing unit 5, the central processing unit 5 sends a processing signal to the current branch controller 6, the current branch controller does not branch the current, and the vehicle is normally charged.

Optionally, when the battery of the electric vehicle can receive the accessed fast charging current within the capacity range, the lithium battery management system with the current branch controller 6 is not selected, so that the cost is reduced, but the method is recommended to be adopted within the capacity range for safety.

Referring to fig. 2, the charging connector 8 is used for charging a battery of an automobile.

Referring to fig. 2, the CAV bus 12 connects the main body 1 and the battery pack 2 for signal interaction.

Although the present application has been described in conjunction with specific features and embodiments thereof, it will be evident that various modifications and combinations can be made thereto without departing from the spirit and scope of the application. Accordingly, the specification and figures are merely exemplary of the application and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of the application. It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the present application and its equivalent technology, the present application is intended to include such modifications and variations.

Claims (5)

1. The utility model provides a lithium battery management system which characterized in that, includes main part (1) and group battery (2), its characterized in that includes:

a charging joint (8) is arranged on the outer side of the battery pack (2), and the battery pack (2) comprises a main battery (9) and a standby battery (10);

the sensor (3) is positioned on one side close to the charging connector (8) and used for sending a current signal;

the collector (4) is positioned inside the main body (1) and close to one side of the battery pack (2) and is used for receiving the current signal and sending a collection signal;

the central processing unit (5) is positioned in the middle of the main body (1) and is used for receiving the acquisition signals from the acquisition device (4), sending the processing signals and determining the signals;

the current branch controller (6), the current branch controller (6) is located near one side of the collector (4), and is used for receiving the processing signal from the central processing unit (5);

the motor (11), the motor (11) is located near one end of the current branch controller (6), is used for receiving the determination signal from the central processing unit (5), and sends the electrical signal;

and the main and standby power supply switching module (7) is positioned at one end close to the sensor (3) and is used for receiving the electric signal from the motor.

2. The lithium battery management system according to claim 1, wherein the sensor (3) and the collector (4) are electrically connected to the central processing unit (5), the current branch controller (6) is electrically connected to the central processing unit (5), and the motor (11) and the active/standby power switching module (7) are electrically connected to the central processing unit (5).

3. A lithium battery management system according to claim 1, characterized in that the main battery (9) and the backup battery (10) together form the core of the battery.

4. Lithium battery management system according to claim 1, characterized in that the body (1) is connected to the battery pack (2) via a CAN bus (12).

5. The lithium battery management system according to claim 1, wherein the charging connector (8) is an interface for charging an automobile through a charging pile.

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