Electric scooter system with USB interface charging and parallel range extending functions

Abstract

The utility model relates to the technical field of electric scooters, and discloses an electric scooter system with USB (universal serial bus) interface charging and parallel range extending functions, which comprises a USB interface input module, a charging protocol control and charging state display module, a constant-current / constant-voltage DC (direct current) power conversion module, a battery pack module, a brushless motor driving control module and a multifunctional scooter instrument. According to the utility model, the external power supply connected with the USB TYPE-C and the inner battery pack module are connected in parallel to work, so that the function of double-battery parallel operation range extension is achieved, the endurance mileage of the electric scooter can be increased, the capacity of the battery in the scooter can be reduced, the cost is reduced, the problems of outdoor charging and mobile charging of the electric scooter are solved, and the service life of the electric scooter is prolonged. And the battery pack module can be safely and effectively charged under standard voltage and current, the stability of a charging system on battery charging operation is improved, the charging state can be displayed at any time, the charging locking braking function can be achieved, and the safety coefficient is high.

Description

Technical Field

[0001] This utility model relates to the field of electric scooter technology, specifically an electric scooter system with USB interface charging and parallel range extension. Background Technology

[0002] Electric scooters are a new type of skateboarding product following traditional skateboards. They are energy-efficient, charge quickly, have a long range, are aesthetically pleasing, easy to operate, and safer to ride. They are definitely a perfect choice for those who appreciate convenience and add more fun to their lives.

[0003] The published patent document CN206427217U discloses an electric scooter and its control system. This published patent document allows for acceleration or deceleration control of the scooter by adjusting the pitch angle of the scooter's pedals, improving the user's operating experience and riding pleasure. However, the published patent document can only rely on the internal battery to provide power to the electric scooter, and cannot use USB power banks or other portable power sources to connect the internal battery in parallel. This results in a short driving range or an increase in cost due to the need to increase the battery capacity. Utility Model Content

[0004] The purpose of this invention is to provide an electric scooter system with USB interface charging and parallel range extension, which solves the problems mentioned in the background art.

[0005] This application provides an electric scooter system with USB interface charging and parallel range extension, including a USB interface input module, a charging protocol control and charging status display module, a constant current / constant voltage DC power conversion module, a battery pack module, a brushless motor drive control module, and a scooter multi-function instrument. The system is characterized in that: the output terminal of the USB interface input module is connected to the input terminal of the charging protocol control and charging status display module; the output terminal of the charging protocol control and charging status display module is connected to the input terminals of the constant current / constant voltage DC power conversion module, the brushless motor drive control module, and the scooter multi-function instrument; the output terminal of the constant current / constant voltage DC power conversion module is connected to the input terminal of the battery pack module; the output terminal of the battery pack module is connected to the input terminal of the brushless motor drive control module; and the output terminal of the brushless motor drive control module is connected to the input terminal of the scooter multi-function instrument.

[0006] Optionally, the USB interface input module is a TYPE-C USB interface, and the USB interface input module has the PD protocol, and the USB interface input module provides 45-100W of power.

[0007] Optionally, the charging protocol control and charging status display module includes a PD protocol communication unit, a battery current charging control unit, a charging status display unit, and a charging lock unit. The PD protocol communication unit is used to send the communication protocol of the USB interface input module. The battery current charging control unit is used to control the constant current / constant voltage DC power conversion module to adjust the charging current of the battery pack module. The charging status display unit is used to determine the charging status of the battery pack module. The charging lock unit is used to send a charging lock braking signal to the brushless motor drive control module or the scooter multi-function instrument.

[0008] Optionally, the constant current / constant voltage DC power conversion module includes a voltage and current control unit and a charging diode. The voltage and current control unit outputs the charging voltage and current of the battery pack module according to the PD protocol of the USB interface input module and the charging protocol control and charging status display module. The charging diode ensures that the battery pack module does not supply power to the constant current / constant voltage DC power conversion module in reverse.

[0009] Optionally, the USB interface input module completes PD protocol communication through the charging protocol control and charging status display module, and controls the constant current / constant voltage DC power conversion module to connect the external power supply in parallel with the battery pack module through the charging diode to the brushless motor drive control module. The scooter multi-function instrument disables the charging braking control of the charging lock unit when the external power supply is charging.

[0010] Optionally, the brushless motor drive control module is used to convert the energy of the battery pack module and the USB interface input module into energy for the brushless motor drive, and the brushless motor drive control module is used to receive the charging and locking braking signal from the charging and locking unit and perform charging and braking control.

[0011] Optionally, the scooter's multi-function instrument panel is used to display the scooter's operating status data, and the scooter's multi-function instrument panel is used to receive the charging and locking braking signal from the charging and locking unit and to perform charging and braking control.

[0012] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:

[0013] 1. This application enables the external power supply with USB TYPE-C access to work in parallel with the internal battery pack module, achieving the function of dual-battery parallel range extension. This can increase the range of the electric scooter while reducing the internal battery capacity and lowering costs.

[0014] 2. This application is compatible with mobile phone chargers and outdoor USB power banks, solving the problem of outdoor and mobile charging for electric scooters. Moreover, compared with traditional electric scooters that cannot be charged while in use, this application allows charging while in use after connecting an external power bank, saving time and making it more convenient for users.

[0015] 3. This application can safely and effectively charge the battery pack module under standard voltage and current, increasing the stability of the charging system for battery charging operation. It can also display the charging status at all times and realize the charging lock braking function, with a high safety factor. 附图说明

[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0017] Figure 1 This is a system block diagram of the present invention;

[0018] Figure 2 This is a block diagram of the charging protocol control and charging status display module of this utility model;

[0019] Figure 3 This is a block diagram of the constant current / constant voltage DC power conversion module of this utility model.

[0020] In the diagram: 1. USB interface input module; 2. Charging protocol control and charging status display module; 21. PD protocol communication unit; 22. Battery current charging control unit; 23. Charging status display unit; 24. Charging lock unit; 3. Constant current / constant voltage DC power conversion module; 31. Voltage and current control unit; 32. Charging diode; 4. Battery pack module; 5. Brushless motor drive control module; 6. Scooter multi-function instrument panel. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] Please see Figure 1This utility model provides an electric scooter system with USB interface charging and parallel range extension, including a USB interface input module 1, a charging protocol control and charging status display module 2, a constant current / constant voltage DC power conversion module 3, a battery pack module 4, a brushless motor drive control module 5, and a scooter multi-function instrument 6. The output terminal of the USB interface input module 1 is connected to the input terminal of the charging protocol control and charging status display module 2. The output terminal of the charging protocol control and charging status display module 2 is connected to the input terminals of the constant current / constant voltage DC power conversion module 3, the brushless motor drive control module 5, and the scooter multi-function instrument 6, respectively. The output terminal of the constant current / constant voltage DC power conversion module 3 is connected to the input terminal of the battery pack module 4. The output terminal of the battery pack module 4 is connected to the input terminal of the brushless motor drive control module 5. The output terminal of the brushless motor drive control module 5 is connected to the input terminal of the scooter multi-function instrument 6.

[0023] In some technical solutions, such as Figure 1 As shown, the USB interface input module 1 is a TYPE-C USB interface, and the USB interface input module 1 has the PD protocol and provides 45-100W of power.

[0024] When in use, the USB interface input module 1 with the TYPE-C USB interface is compatible with mobile phone chargers and outdoor USB power banks, solving the problem of outdoor and mobile charging for electric scooters.

[0025] In some technical solutions, such as Figure 2 As shown, the charging protocol control and charging status display module 2 includes a PD protocol communication unit 21, a battery current charging control unit 22, a charging status display unit 23, and a charging lock unit 24. The PD protocol communication unit 21 is used to send the communication protocol of the USB interface input module 1. The battery current charging control unit 22 is used to control the constant current / constant voltage DC power conversion module 3 to adjust and control the charging current of the battery pack module 4. The charging status display unit 23 is used to determine the charging status of the battery pack module 4. The charging lock unit 24 is used to send a charging lock braking signal to the brushless motor drive control module 5 or the scooter multi-function instrument 6.

[0026] In use, the PD protocol communication unit 21 allows the USB interface input module 1 to output the rated voltage and lock the voltage output, effectively charging the battery pack module 4; the battery current charging control unit 22 allows the USB interface input module 1 and the constant current / constant voltage DC power conversion module 3 to charge the battery pack module 4 normally according to the protocol requirements; the charging status display unit 23 can display whether the battery pack module 4 is fully charged; and the charging locking unit 24 provides locking, charging, locking, and braking signals.

[0027] In some technical solutions, such as Figure 3 As shown, the constant current / constant voltage DC power conversion module 3 includes a voltage and current control unit 31 and a charging diode 32. The voltage and current control unit 31 outputs the charging voltage and current of the battery pack module 4 according to the PD protocol of the USB interface input module 1 and the charging protocol control and charging status display module 2. The charging diode 32 ensures that the battery pack module 4 does not supply power to the constant current / constant voltage DC power conversion module 3 in reverse.

[0028] In use, the voltage and current control unit 31 enables the battery pack module 4 to operate at the rated voltage and standard charging current; the charging diode 32 prevents the voltage of the battery pack module 4 from being reversed to supply power to the constant current / constant voltage DC power conversion module 3 circuit.

[0029] In some technical solutions, such as Figure 1 As shown, the USB interface input module 1 completes PD protocol communication through the charging protocol control and charging status display module 2, and controls the constant current / constant voltage DC power conversion module 3 to connect the external power supply in parallel with the battery pack module 4 through the charging diode 32 to the brushless motor drive control module 5. The scooter multi-function instrument 6 turns off the charging braking control of the charging lock unit 24 when the external power supply is charging.

[0030] When in use, the external power supply with USB TYPE-C access works in parallel with the internal battery pack module 4 to achieve the function of dual-battery parallel range extension, which can increase the range of the electric scooter and reduce the internal battery capacity, thus reducing costs.

[0031] In some technical solutions, such as Figure 1 As shown, the brushless motor drive control module 5 is used to convert the energy of the battery pack module 4 and the USB interface input module 1 into energy for the brushless motor drive, and the brushless motor drive control module 5 is used to receive the charging and locking braking signal from the charging and locking unit 24 and perform charging and braking control.

[0032] In use, the brushless motor drive control module 5 can both drive the electric scooter and realize the charging, locking, and braking functions.

[0033] In some technical solutions, such as Figure 1 As shown, the scooter multi-function instrument 6 is used to display the scooter's operating status data, and the scooter multi-function instrument 6 is used to receive the charging lock braking signal from the charging lock unit 24 and perform charging braking control.

[0034] When in use, the scooter's multi-function instrument panel 6 enables human-computer interaction and information sharing.

[0035] Working Principle: The USB interface input module 1 with a TYPE-C USB interface is compatible with mobile phone chargers and outdoor USB power banks. The charging protocol control and charging status display module 2 can safely and effectively charge the battery pack module 4 under standard voltage and current, increasing the stability of the charging system for battery charging operation, and can display the charging status at all times. The charging protocol control and charging status display module 2 and the brushless motor drive control module 5 can realize the charging lock braking function. The constant current / constant voltage DC power conversion module 3 enables the battery pack module 4 to work under rated voltage and standard charging current, with stable operation. Moreover, through the USB interface input module 1, the external power supply connected by USB TYPE-C can be connected in parallel with the internal battery pack module 4 to achieve the function of dual battery parallel range extension, which can increase the range of electric scooters and reduce the internal battery capacity, thereby reducing costs.

[0036] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An electric scooter system with USB interface charging and parallel range extension, comprising a USB interface input module (1), a charging protocol control and charging status display module (2), a constant current / constant voltage DC power conversion module (3), a battery pack module (4), a brushless motor drive control module (5), and a scooter multi-function instrument (6), characterized in that: The output of the USB interface input module (1) is connected to the input of the charging protocol control and charging status display module (2). The output of the charging protocol control and charging status display module (2) is connected to the input of the constant current / constant voltage DC power conversion module (3), the brushless motor drive control module (5), and the scooter multi-function instrument (6), respectively. The output of the constant current / constant voltage DC power conversion module (3) is connected to the input of the battery pack module (4). The output of the battery pack module (4) is connected to the input of the brushless motor drive control module (5). The output of the brushless motor drive control module (5) is connected to the input of the scooter multi-function instrument (6).

2. The electric scooter system with USB interface charging and parallel range extension according to claim 1, characterized in that, The USB interface input module (1) is a TYPE-C USB interface and has the PD protocol. The USB interface input module (1) provides 45-100W of power.

3. The electric scooter system with USB interface charging and parallel range extension according to claim 1, characterized in that, The charging protocol control and charging status display module (2) includes a PD protocol communication unit (21), a battery current charging control unit (22), a charging status display unit (23), and a charging lock unit (24). The PD protocol communication unit (21) is used to send the communication protocol of the USB interface input module (1). The battery current charging control unit (22) is used to control the constant current / constant voltage DC power conversion module (3) to adjust the charging current of the battery pack module (4). The charging status display unit (23) is used to determine the charging status of the battery pack module (4). The charging lock unit (24) is used to send a charging lock braking signal to the brushless motor drive control module (5) or the scooter multi-function instrument (6).

4. The electric scooter system with USB interface charging and parallel range extension according to claim 1, characterized in that, The constant current / constant voltage DC power conversion module (3) includes a voltage and current control unit (31) and a charging diode (32). The voltage and current control unit (31) outputs the charging voltage and current of the battery pack module (4) according to the PD protocol of the USB interface input module (1) and the charging protocol control and charging status display module (2). The charging diode (32) ensures that the battery pack module (4) will not supply power to the constant current / constant voltage DC power conversion module (3) in reverse.

5. An electric scooter system with USB interface charging and parallel range extension according to any one of claims 1-3, characterized in that, The USB interface input module (1) completes PD protocol communication through the charging protocol control and charging status display module (2), and controls the constant current / constant voltage DC power conversion module (3) to connect the external power supply in parallel with the battery pack module (4) through the charging diode (32) to the brushless motor drive control module (5). The scooter multi-function instrument (6) turns off the charging braking control of the charging lock unit (24) when the external power supply is charging.

6. The electric scooter system with USB interface charging and parallel range extension according to claim 1, characterized in that, The brushless motor drive control module (5) is used to convert the energy of the battery pack module (4) and the USB interface input module (1) into the energy of the brushless motor drive, and the brushless motor drive control module (5) is used to receive the charging lock braking signal from the charging lock unit (24) and perform charging braking control.

7. The electric scooter system with USB interface charging and parallel range extension according to claim 1, characterized in that, The scooter multi-function instrument (6) is used to display the scooter's operating status data, and the scooter multi-function instrument (6) is used to receive the charging lock braking signal from the charging lock unit (24) and perform charging braking control.

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