CN203554037U - Electric bicycle wireless pulse charging system - Google Patents

Abstract

Translated fromChinese

本实用新型是一种电动自行车无线脉冲充电系统，本系统能够实现对电动自行车的无线充电，且车载侧的充电电流为脉冲电流，运用脉冲电流充电可以实现电动自行车的快速充电的同时也显著改善了由于充电引起的蓄电池过热的问题。本实用新型电动自行车无线脉冲充电系统由220V交流侧，磁耦合器，车载侧构成。其中220V交流侧包括220V交流电源，整流滤波器，谐振逆变器和控制器；车载侧包括整流滤波器，Mosfet开关电路和PWM发生电路。本电动自行车无线脉冲充电系统在工作时，220V交流侧输出一定频率的交流电，该交流电通过磁耦合器无线传输到车载侧，传输到车载侧的交流电经过整流滤波器变成直流，此时的直流电被车载侧的开关电路斩波成脉冲电流对蓄电池充电。

The utility model relates to a wireless pulse charging system for an electric bicycle. The system can realize wireless charging of the electric bicycle, and the charging current on the vehicle side is a pulse current. Using the pulse current charging can realize the fast charging of the electric bicycle and at the same time significantly improve the The problem of battery overheating caused by charging is solved. The wireless pulse charging system of the electric bicycle of the utility model is composed of a 220V AC side, a magnetic coupler, and a vehicle-mounted side. The 220V AC side includes 220V AC power supply, rectification filter, resonant inverter and controller; the vehicle side includes rectification filter, Mosfet switching circuit and PWM generation circuit. When the electric bicycle wireless pulse charging system is working, the 220V AC side outputs alternating current of a certain frequency, and the alternating current is wirelessly transmitted to the vehicle side through a magnetic coupler, and the alternating current transmitted to the vehicle side is converted into DC through a rectifier filter. It is chopped into a pulse current by the switch circuit on the vehicle side to charge the battery.

Description

Translated fromChinese

一种电动自行车无线脉冲充电系统A wireless pulse charging system for electric bicycles

技术领域technical field

本实用新型属于一种家用电动自行车无线脉冲充电系统，具体涉及到在正常情况下运用本系统对家用电动自行车进行无线快速充电且充电电流为脉冲电流。 The utility model belongs to a wireless pulse charging system for household electric bicycles, and specifically relates to using the system to wirelessly fast charge household electric bicycles under normal conditions, and the charging current is a pulse current. the

背景技术Background technique

近年来电动自行车在我国得到了快速普及，已有代替传统自行车和摩托车的趋势。电动自行车由于使用的是电能，是一种典型的无污染的绿色交通出行工具，具有使用容易，方便，快捷等优点。 In recent years, electric bicycles have been rapidly popularized in my country, and there is a tendency to replace traditional bicycles and motorcycles. Because electric bicycles use electric energy, they are a typical pollution-free green transportation tool, and have the advantages of being easy to use, convenient and fast. the

电动自行车通过其内部的蓄电池存储电能，在使用一段时间之后就要对其进行充电。目前市面上在售的电动自行车的充电方式都是通过电压变换器将民用220V交流电与电动自行车上蓄电池充电系统连接，对电动自行车进行充电的。这种传统充电方式最大的缺点就是充电速度慢且需要通过有线方式将220V民用电与电动自行车上的充电系统连接起来，这就在无形中为电动自行车的使用增加了不便性。 Electric bicycles store electrical energy through their internal batteries, which need to be recharged after a period of use. At present, the charging methods of the electric bicycles sold on the market are to connect the civilian 220V alternating current with the battery charging system on the electric bicycle through a voltage converter to charge the electric bicycle. The biggest disadvantage of this traditional charging method is the slow charging speed and the need to connect the 220V civilian electricity to the charging system on the electric bicycle through a wired method, which virtually increases the inconvenience for the use of electric bicycles. the

发明内容Contents of the invention

本电动自行车无线脉冲充电系统，目的在于让220V民用电与电动自行车充电系统通过无线的方式连接，且本系统最后输出的是脉冲充电电流，这样可以在减少电能损耗的情况下提高充电效率。 The purpose of this wireless pulse charging system for electric bicycles is to connect 220V civilian electricity to the electric bicycle charging system wirelessly, and the final output of this system is pulse charging current, which can improve charging efficiency while reducing power loss. the

本实用新型涉及一种电动自行车无线充电系统，本无线充电系统由充电装置和磁耦合器组成。而充电装置包括220V交流侧和车载侧两部分，其中220V交流侧包括220V交流电源，整流滤波器和谐振逆变器这3部分本构成；车载侧包括整流滤波器和Mosfet开关电路组成。本无线充电系统的特征结构简洁实用，构思巧妙。 The utility model relates to a wireless charging system for an electric bicycle. The wireless charging system is composed of a charging device and a magnetic coupler. The charging device includes two parts: 220V AC side and vehicle side. The 220V AC side includes 220V AC power supply, rectifier filter and resonant inverter. The vehicle side includes rectifier filter and Mosfet switch circuit. The characteristic structure of the wireless charging system is simple and practical, and the concept is ingenious. the

所述的充电装置，其特征在于其在车载部分添加了一个Mosfet开关电路，通过Mosfet对整流滤波器输出的直流进行斩波，使整个无线充电系统输出的为脉冲电流，且脉冲电流的脉宽和频率可调。这样做的好处就是通过输出的脉冲电流对蓄电池充电，可以有效提高充电效率。目前的电动自行车的蓄电池工作的额 定电压一般为36V,48V和72V等，以应用最多的48V为例，传统的充电方式一般为加载60V左右的电压为48V的蓄电池充电，本无线脉冲快速充电系统则使用90V左右的电压为其充电，采用大电压大电流充电可以大幅的减少充电时间，车载侧的开关Mosfet电路的作用是通过斩波的方式控制一个充电周期内的充电时间，以防止大电流充电对蓄电池造成的损害，降低蓄电池充电时的发热量。 The charging device is characterized in that a Mosfet switch circuit is added to the vehicle part, and the direct current output by the rectifier filter is chopped through the Mosfet, so that the output of the entire wireless charging system is a pulse current, and the pulse width of the pulse current is and frequency adjustable. The advantage of this is that the battery is charged through the output pulse current, which can effectively improve the charging efficiency. The current rated voltage of electric bicycle batteries is generally 36V, 48V and 72V. Taking the most widely used 48V as an example, the traditional charging method is generally to charge a battery with a voltage of about 60V and a voltage of 48V. This wireless pulse fast charging The system uses a voltage of about 90V to charge it. Using high-voltage and high-current charging can greatly reduce the charging time. The function of the switching Mosfet circuit on the vehicle side is to control the charging time in a charging cycle by chopping to prevent large The damage caused by current charging to the battery reduces the calorific value of the battery during charging. the

所述磁耦合器，其特征在于通过磁耦合的方式将本系统的充电装置的220V交流侧与充电装置的车载侧通过无线的方式连接。 The magnetic coupler is characterized in that the 220V AC side of the charging device of the system is connected wirelessly with the vehicle-mounted side of the charging device by means of magnetic coupling. the

本实用新型结构简单，易于制作、好维护、使用方便、成本低、改变现有电动自行车充电方式的弊端，并且提高了充电效率。 The utility model has the advantages of simple structure, easy manufacture, good maintenance, convenient use, low cost, changes the disadvantages of the existing electric bicycle charging mode, and improves the charging efficiency. the

附图说明Description of drawings

图1为电动自行车无线脉冲充电系统结构图； Figure 1 is a structural diagram of the electric bicycle wireless pulse charging system;

图2为电动自行车无线脉冲充电系统模块图； Figure 2 is a block diagram of the electric bicycle wireless pulse charging system;

具体实施方式Detailed ways

以下根据附图对本发明进行详细说明。 The present invention will be described in detail below with reference to the accompanying drawings. the

图1为电动自行车无线脉冲充电系统的结构图，装置1为220V交流电源，由导线与整流滤波器2相连整流输出直流，直流电经经导线传输到谐振逆变器3上并逆变成一定频率的交流电，该交流电由磁耦合器5无线传输到车载侧，控制器4为逆变器3提供PWM信号。车载侧的整流滤波器6将从220V交流侧通过无线传输过来的交流电进行整流，输出直流经Mosfet直流斩波器8，斩成脉冲电流对蓄电池9充电。装置7为PWM产生电路，与Mosfet相连并提供驱动信号。检测装置10与电池蓄电阻相连并检测蓄电池的各种参数，数据显示电路11用于显示检测装置检测到的各种参数。 Figure 1 is a structural diagram of a wireless pulse charging system for electric bicycles. Device 1 is a 220V AC power supply, which is connected to arectifier filter 2 by wires to rectify and output DC. The alternating current is wirelessly transmitted to the vehicle side by the magnetic coupler 5, and thecontroller 4 provides theinverter 3 with a PWM signal. Therectification filter 6 on the vehicle side rectifies the AC power wirelessly transmitted from the 220V AC side, and the output DC passes through the MosfetDC chopper 8 to chop into a pulse current to charge thebattery 9 . Thedevice 7 is a PWM generating circuit, which is connected with the Mosfet and provides a driving signal. Thedetection device 10 is connected with the storage resistance of the battery and detects various parameters of the storage battery, and thedata display circuit 11 is used for displaying various parameters detected by the detection device. the

图2为电动自行车无线脉冲充电系统的模块图，由模块图可知系统220V交流侧的电能通过磁耦合器无线传输到车载侧。装置12和装置13分别是磁耦合器220V交流侧线圈和车载侧线圈。 Figure 2 is a block diagram of a wireless pulse charging system for an electric bicycle. From the block diagram, it can be seen that the power on the 220V AC side of the system is wirelessly transmitted to the vehicle side through a magnetic coupler. Device 12 and device 13 are the 220V AC side coil and the vehicle side coil of the magnetic coupler, respectively. the

Claims (1)

Translated fromChinese

1.电动自行车无线脉冲充电系统，主要包括充电装置和磁耦合器构成，充电装置由220V交流侧和车载侧这两部分组成，其特征在于，220V交流电源（1），由导线与整流滤波器（2）相连并整流输出直流，直流电经导线传输到谐振逆变器（3）上并逆变成一定频率的交流电，该交流电由磁耦合器（5）无线传输到车载侧，控制器（4）为逆变器（3）提供PWM信号，车载侧的整流滤波器（6）将从220V交流侧通过无线传输过来的交流电进行整流，输出直流经Mosfet直流斩波器（8），斩成脉冲电流对蓄电池（9）充电，PWM产生电路（7）与Mosfet直流斩波器相连并提供驱动信号，检测装置（10）与蓄电池电阻相连并检测蓄电池的各种参数，数据显示电路（11）用于显示检测装置检测到的各种参数。 1. The electric bicycle wireless pulse charging system mainly consists of a charging device and a magnetic coupler. The charging device is composed of two parts: a 220V AC side and a vehicle side. (2) connected and rectified to output direct current, the direct current is transmitted to the resonant inverter (3) through wires and converted into alternating current of a certain frequency, the alternating current is wirelessly transmitted to the vehicle side by the magnetic coupler (5), and the controller (4 ) to provide PWM signals for the inverter (3), and the rectification filter (6) on the vehicle side rectifies the AC power transmitted wirelessly from the 220V AC side, and the output DC is chopped into pulses by the Mosfet DC chopper (8) The current charges the storage battery (9), the PWM generation circuit (7) is connected to the Mosfet DC chopper and provides a driving signal, the detection device (10) is connected to the storage battery resistance and detects various parameters of the storage battery, and the data display circuit (11) is used It is used to display various parameters detected by the detection device. the

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