Electric motorcycle anti-theft alarm device
By combining an NFC sensor board and an alarm unit, the problem of theft prevention and security of electric motorcycles is solved, enabling alarm and location functions when the battery is removed, thus improving the anti-theft performance of electric motorcycles.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 浙江绿驹车业有限公司
- Filing Date
- 2025-08-27
- Publication Date
- 2026-06-26
AI Technical Summary
Electric motorcycles have a low security level once the key is stolen by minors or thieves. This can easily lead to the battery being removed, rendering the anti-theft device ineffective and posing a risk of property loss.
It uses an NFC sensor for personnel identification and issues an alarm when no unlock signal is detected after startup. It also has an alarm unit to detect battery removal and restart the controller via backup power to trigger the anti-theft alarm. The locator is used to extend its lifespan.
To effectively prevent minors from playing with and stealing electric motorcycles, and to ensure the anti-theft safety of electric motorcycles, the use of backup power blocks, buzzer alarm functions, and locators improves the anti-theft effect of electric motorcycles.
Smart Images

Figure CN224417345U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of vehicle technology and relates to an anti-theft alarm device for electric motorcycles. Background Technology
[0002] With the development of technology, electric motorcycles have become relatively popular, providing convenience for people's travel. They are generally controlled by a key. However, in actual use, some minors may steal the key and drive their parents' vehicles to play, which poses a safety hazard. At the same time, thieves will also steal them. Their anti-theft security is not enough, and they are easily stolen, causing property loss. The battery is an important component of the vehicle and is also a major target for vehicle theft. Removing the battery basically disconnects the circuit of the controller, thus rendering the anti-theft device ineffective and unable to prevent theft. Summary of the Invention
[0003] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a burglar alarm device that offers good anti-theft performance and solves these problems.
[0004] The objective of this utility model can be achieved through the following technical solution: An anti-theft alarm device for an electric motorcycle includes a main body with a display screen and a battery body mounted on the main body. A controller connected to the main body and used to control its operation is installed within the main body. A buzzer connected to the main body and used for alarm functions is also installed within the main body. The device is characterized in that a sensor plate connected to the display screen and used to sense NFC signals is installed on the main body outside the display screen. This sensor plate is wirelessly connected to the controller. When the vehicle is started, a terminal device approaches the sensor plate and detects the NFC signal, thereby unlocking the system through the controller. If no unlock is detected within S seconds after activation... The controller sends a signal to the terminal device and simultaneously activates a buzzer to sound an alarm. An alarm unit, connected to and functioning as an alarm, is located on the main body of the vehicle at the location of the battery. This alarm unit is wirelessly connected to the controller and includes a detector connected to the battery to detect whether the battery has been removed, and a backup power block connected to both the detector and the main body. When the battery is removed, the detector detects the disconnection signal and wirelessly activates the backup power block, which then supplies power to the controller, causing the controller to send a notification to the terminal device and simultaneously activate the buzzer to sound an alarm.
[0005] In the aforementioned electric motorcycle anti-theft alarm device, the battery body is provided with a connector that connects to it and facilitates connection with the detector. The connector is connected to the battery body via a wire.
[0006] In the aforementioned electric motorcycle anti-theft alarm device, the backup power supply block is connected to the controller via a wire.
[0007] In the aforementioned electric motorcycle anti-theft alarm device, the detector has folded edges on both sides that are connected to it and facilitate connection between the detector and the main vehicle body, and the folded edges have several mounting holes.
[0008] In the aforementioned electric motorcycle anti-theft alarm device, both the main body of the vehicle and the main battery body can be equipped with locators that are connected to them.
[0009] Compared with existing technologies, this electric motorcycle anti-theft alarm device can identify people by setting up an NFC sensing board, which can prevent children from playing with it. At the same time, it is equipped with an alarm unit that can restart the controller and activate the anti-theft alarm by starting the backup power supply after the battery is disconnected from the controller. Attached Figure Description
[0010] Figure 1 This is a top view of the main body structure of the anti-theft alarm device for this electric motorcycle.
[0011] Figure 2 This is a three-dimensional structural diagram of the battery body in the anti-theft alarm device for this electric motorcycle.
[0012] Figure 3 This is a three-dimensional structural diagram of the alarm unit in the anti-theft alarm device for this electric motorcycle.
[0013] In the diagram, 1. Main vehicle body; 2. Battery main body; 3. Induction board; 4. Detector; 5. Backup power block; 6. Connector. Detailed Implementation
[0014] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0015] like Figure 1 , Figure 2 , Figure 3As shown, this electric motorcycle anti-theft alarm device includes a main body 1 with a display screen and a battery body 2 mounted on the main body 1. A controller connected to and controlling the operation of the main body 1 is installed inside the main body 1, and a buzzer connected to and used for alarm functions is also installed inside the main body 1. A sensor plate 3, connected to and used for sensing NFC signals, is located outside the display screen on the main body 1. The sensor plate 3 is wirelessly connected to the controller. When the vehicle is started, a terminal device approaches the sensor plate 3 and detects the NFC signal, thereby unlocking the system through the controller. If no unlock signal is detected within S seconds after activation, the controller sends a prompt to the terminal device and simultaneously activates the buzzer to sound an alarm. The S seconds can generally be set between 15 and 40 seconds. An alarm unit, connected to and also connected to the battery body 2, is located on the main body 1 and has an alarm function. This alarm unit is wirelessly connected to the controller. The unit includes a detector 4 connected to the battery body 2 and used to detect whether the battery body 2 has been removed, and a backup power block 5 connected to the detector 4 and also connected to the main vehicle body 1. When the battery body 2 is removed, the detector 4 detects the disconnection signal from the battery body 2 and sends a wireless signal to activate the backup power block 5. The backup power block 5 supplies power to the controller, causing the controller to send a prompt to the terminal device and simultaneously activate the buzzer to sound an alarm. The battery body 2 is provided with a connector 6 that is connected to it and facilitates connection to the detector 4. The connector 6 is connected to the battery body 2 via a wire. The detector 4 has folded edges on both side walls that are connected to it and facilitate connection between the detector 4 and the main vehicle body 1. Several mounting holes are provided on the folded edges. Both the main vehicle body 1 and the battery body 2 can be equipped with locators that are connected to them. The location can be determined through the locators. When the backup power block 5 is activated, the locators are activated remotely via wireless signal, thereby increasing the usage time of the locators.
[0016] As a preferred configuration, the backup power block 5 is connected to the controller via a wire.
[0017] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
[0018] Although this document uses terms such as "etc." extensively, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any additional limitation would contradict the spirit of this invention.
Claims
1. An anti-theft alarm device for an electric motorcycle, comprising a main body (1) with a display screen and a battery body (2) disposed on the main body (1), wherein a controller connected to the main body (1) and used to control the operation of the main body (1) is disposed within the main body (1), and a buzzer connected to the main body (1) and used for alarm is also disposed within the main body (1), characterized in that, The main vehicle body (1) has a sensor plate (3) connected to the display screen and used to sense NFC signals. The sensor plate (3) is wirelessly connected to the controller. When the vehicle starts, the terminal device approaches the sensor plate (3) and recognizes the NFC signal, thereby unlocking the system through the controller. If no unlock signal is detected within S seconds after the vehicle starts, the controller sends a prompt to the terminal device and activates a buzzer to sound an alarm. The main vehicle body (1) also has a sensor plate connected to the battery body (2) and equipped with an alarm. The alarm unit is wirelessly connected to the controller and includes a detector (4) connected to the battery body (2) and used to detect whether the battery body (2) is removed, and a backup power block (5) connected to the detector (4) and also connected to the main vehicle body (1). When the battery body (2) is removed, the detector (4) detects the disconnection signal from the battery body (2) and sends a wireless signal to start the backup power block (5). The backup power block (5) supplies power to the controller, so that the controller sends a prompt to the terminal device and starts the buzzer to sound an alarm.
2. The electric motorcycle anti-theft alarm device according to claim 1, characterized in that, The battery body (2) is provided with a connector (6) that is connected to it and facilitates connection with the detector (4). The connector (6) is connected to the battery body (2) via a wire.
3. The electric motorcycle anti-theft alarm device according to claim 1, characterized in that, The backup power block (5) is connected to the controller via a wire.
4. The electric motorcycle anti-theft alarm device according to claim 1, characterized in that, The detector (4) has folded edges on both sides that are connected to it and facilitate the connection between the detector (4) and the main vehicle body (1), and several mounting holes are provided on the folded edges.
5. The electric motorcycle anti-theft alarm device according to claim 1, characterized in that, Both the main vehicle body (1) and the battery body (2) can be equipped with a locator connected to them.