Safety management system of mobile power supply

Abstract

The utility model discloses a safety management system of a mobile power supply, comprising a U1 module, one end of which is connected with a lithium battery; the U2 module is connected with at least one charging port input, and the DC boost management circuit, the overcurrent and overvoltage protection circuit and the coulomb meter circuit are connected with the U1 module; in the charging process of the lithium battery, the lithium battery is sequentially connected with the lithium battery protection circuit and the charging management circuit to the charging port input; the load detection circuit is connected with the U2 module and an output control MOS circuit, and the output control MOS circuit is connected with at least one discharge output port; in the discharging process of the lithium battery, the lithium battery is connected into the U2 module through the U1 module and then connected to the load detection circuit and the output control MOS circuit to be communicated with the discharging output port to achieve discharging. The flow meter module is connected with the U1 module, and the flow meter module and the coulomb meter circuit are in communication connection with the MCU control circuit module, so that the MCU control circuit module obtains data collected by the flow meter module and the coulomb meter circuit and processes the data collected by the flow meter module and the coulomb meter circuit.

Description

Technical Field

[0001] The utility model relates to the field of mobile power circuit management, and particularly to a safety management system for a mobile power supply. Background Art

[0002] As society enters the intelligent era, it is marked by an increasing number of intelligent devices. Then, the demand for mobile charging of intelligent devices has become even stronger. However, the current power banks on the market only have simple charge and discharge functions and do not have prevention in terms of product safety. Users cannot intuitively feel the aging problem of the mobile power supply, and accidents such as damage to charging devices and even personal safety often occur.

[0003] Therefore, it is very necessary to develop a new safety management system for mobile power supplies. Summary of the Utility Model

[0004] To overcome the deficiencies of the prior art, the purpose of the utility model is to provide a safety management system for a mobile power supply, which can improve the working stability and safety of the mobile power supply by collecting the working state of the mobile power supply in real time and visual observation.

[0005] The utility model is realized by the following technical solutions: A safety management system for a mobile power supply includes a U1 module, the U1 module is a lithium battery protection circuit, and one end of it is connected to a lithium battery; a U2 module, connected to at least one charging port input, the U2 module includes a charging management circuit, a DC boost management circuit, an overcurrent and overvoltage protection circuit, and a coulomb meter circuit, the DC boost management circuit, the overcurrent and overvoltage protection circuit, and the coulomb meter circuit are connected to the U1 module; during the charging process of the lithium battery, the lithium battery is sequentially connected to the lithium battery protection circuit, the charging management circuit, and then to the charging port input; a load detection circuit, connected to the U2 module and an output control MOS circuit, the output control MOS circuit is connected to at least one discharge output port; during the discharge process of the lithium battery, the lithium battery is connected to the DC boost management circuit in the U2 module through the U1 module, and then to the load detection circuit and then to the output control MOS circuit to connect the discharge output port to realize discharge; a U3 module, the U3 module includes a flow meter module and an MCU control circuit module, the flow meter module is connected to the U1 module, and the flow meter module and the coulomb meter circuit are communicatively connected to the MCU control circuit module, so that the MCU control circuit module obtains and processes the data collected by the flow meter module and the coulomb meter circuit.

[0006] Further, the MCU control circuit module is connected to at least one RCT clock circuit.

[0007] Further, the MCU control circuit module is connected to at least one temperature probe.

[0008] Further, the MCU control circuit module is connected to two temperature probes.

[0009] Further, the MCU control circuit module is connected to a button.

[0010] Further, the MCU control circuit module is connected to an LCD display screen through a display driving circuit, so that the data result processed by it is displayed on the LCD display screen.

[0011] Compared with the prior art, the beneficial effects that the present utility model can achieve are as follows:

[0012] By adding the coulomb meter circuit in the U2 module and connecting it to the U3 module including the flow meter module and the MCU control circuit module, the MCU control circuit module can accurately obtain the important health indicators of the mobile power supply, ensuring the health monitoring and use safety of the mobile power supply. Description of the Drawings

[0013] Figure 1 The figure shows a schematic structural diagram of the safety management system of the mobile power supply of the present utility model. Detailed Embodiments

[0014] Next, in combination with the drawings and specific embodiments, the present utility model will be further described. It should be noted that on the premise of no conflict, the following described embodiments or technical features can be arbitrarily combined with each other to form new embodiments.

[0015] Such as Figure 1As shown in the figure, an embodiment of the present utility model discloses a U1 module. The U1 module is a lithium battery protection circuit, and one end of it is connected to a lithium battery; a U2 module is connected to at least one charging port input. The U2 module includes a charging management circuit, a DC boost management circuit, an overcurrent and overvoltage protection circuit, and a coulomb meter circuit. The DC boost management circuit, the overcurrent and overvoltage protection circuit, and the coulomb meter circuit are connected to the U1 module; during the charging process of the lithium battery, the lithium battery is sequentially connected to the lithium battery protection circuit, the charging management circuit, and then to the charging port input; a load detection circuit is connected to the U2 module and an output control MOS circuit, and the output control MOS circuit is connected to at least one discharge output port; during the discharge process of the lithium battery, the lithium battery is connected to the DC boost management circuit in the U2 module through the U1 module, and then to the load detection circuit and then to the output control MOS circuit to connect the discharge output port to realize discharge; a U3 module, the U3 module includes a flow meter module and an MCU control circuit module. The flow meter module is connected to the U1 module, and the flow meter module and the coulomb meter circuit are communicatively connected to the MCU control circuit module, so that the MCU control circuit module can obtain and process the data collected by the flow meter module and the coulomb meter circuit. In this way, the system can accurately obtain important health indicators of the power bank during operation, ensuring the health monitoring and use safety of the power bank.

[0016] Furthermore, in this embodiment, the MCU control circuit module is connected to at least one RCT clock circuit; the RCT clock circuit can set a timed discharge function; the MCU control circuit module is connected to two temperature probes, the MCU control circuit module is connected to a button, and the MCU control circuit module is connected to an LCD display screen through a display driver circuit, so that the data processing results are displayed on the LCD display screen; in this way, the MCU control circuit module can accurately sense an important health parameter, that is, the operating temperature of the power bank, and visually display all the health parameters it processes on the LCD display screen. It is convenient for the operator to have an intuitive and simple operation experience, and the safety management system of the power bank can be manually operated through the button.

[0017] Specifically, the calculation logic of the charge-discharge cycle times of the mobile power supply in this new type of mobile power supply safety management system is as follows: The MCU control circuit module calculates the energy used each time to analyze and count the number of times the battery is used. For example, the battery cycle times are calculated based on the cumulative discharge amount of the battery. That is to say, regardless of whether the charge and discharge are carried out once, twice or multiple times, as long as the cumulative discharge amount reaches 100%, it is counted as one cycle. For example, 40% of the battery power is used for the first time, then charged to 80%, and then discharged to 20%. In this way, the cumulative discharge amount reaches 60%. If it is charged to 70% again and then discharged to 30%, the cumulative discharge amount reaches 100%. Only at this time is it counted as a complete cycle, and the system will record it once, and so on.

[0018] In addition, when the battery health is lower than 50%, the mobile power supply will remind the user on the LCD display screen that this product has been used for a long time and its performance will decrease accordingly, including a series of safety problems such as possible swelling of the battery after long-term use.

[0019] The above embodiments are only the preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art on the basis of the present invention belong to the scope of protection required by the present invention.

Claims

1. A safety management system for a mobile power supply, comprising, characterized in that: A U1 module, the U1 module is a lithium battery protection circuit, and one end thereof is connected to a lithium battery; A U2 module, connected to at least one charging port input, the U2 module includes a charging management circuit, a DC boost management circuit, an over-current and over-voltage protection circuit, and a coulomb meter circuit, the DC boost management circuit, the over-current and over-voltage protection circuit, and the coulomb meter circuit are connected to the U1 module; during the charging process of the lithium battery, the lithium battery is sequentially connected to the lithium battery protection circuit, the charging management circuit, and the charging port input; A load detection circuit, connected to the U2 module and an output control MOS circuit, the output control MOS circuit is connected to at least one discharge output port; during the discharge process of the lithium battery, the lithium battery is connected to the DC boost management circuit in the U2 module through the U1 module, and then to the load detection circuit and the output control MOS circuit to connect the discharge output port to realize discharge; A U3 module, the U3 module includes a flow meter module and an MCU control circuit module, the flow meter module is connected to the U1 module, and the flow meter module and the coulomb meter circuit are communicatively connected to the MCU control circuit module, so that the MCU control circuit module obtains and processes the data collected by the flow meter module and the coulomb meter circuit.

2. The safety management system of the mobile power supply according to claim 1, characterized in that The MCU control circuit module is connected to at least one RCT clock circuit.

3. The safety management system of the mobile power supply according to claim 1, characterized in that, The MCU control circuit module is connected to at least one temperature probe.

4. The safety management system of the mobile power supply according to claim 3, characterized in that, The MCU control circuit module is connected to two temperature probes.

5. The safety management system of the mobile power supply according to claim 4, characterized in that, The MCU control circuit module is connected to a button.

6. The safety management system of the mobile power supply according to claim 1, characterized in that, The MCU control circuit module is connected to an LCD display screen through a display driving circuit, so that the processed data result is displayed on the LCD display screen.

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