Two-wheeled vehicle electronic trunk lock system based on wireless electric energy transmission
By using wireless power transmission technology, the problems of poor waterproof performance and cumbersome operation of electronic tailgate locks for two-wheeled vehicles have been solved, enabling quick disassembly and assembly and efficient power transmission, thus improving the system's waterproof performance and ease of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG LEIPAI MOTOR VEHICLE PARTS
- Filing Date
- 2026-04-08
- Publication Date
- 2026-05-08
AI Technical Summary
Existing electronic tailgate locks for two-wheeled vehicles use wired power supply, resulting in poor waterproofing and cumbersome operation, making quick disassembly and assembly impossible.
The device employs wireless power transmission technology, which enables power transmission through wireless electromagnetic induction between the power transmitting component and the power receiving element. The power transmitting component is fixed to the vehicle body, and the power receiving element is fixed to the bottom of the trunk. After installation, the two are aligned coaxially to achieve wireless power transmission and quick assembly/disassembly.
It completely solves the waterproof sealing problem, improves waterproof performance and operational reliability, and enables quick disassembly and assembly of the tail box and ease of use.
Smart Images

Figure CN224218149U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of two-wheeled vehicle accessories technology, specifically to an electronic tailgate lock system for two-wheeled vehicles based on wireless power transmission. Background Technology
[0002] With the increasing popularity of two-wheeled electric vehicles and motorcycles, users' demand for convenient vehicle storage is constantly rising, making tail boxes a standard accessory for two-wheeled vehicles. To improve ease of use, electronic tail box locks are gradually replacing traditional mechanical locks, enabling one-button unlocking.
[0003] In existing technologies, electronic tailgate locks for two-wheeled vehicles all use a wired power supply method. This means that a connecting cable connects the vehicle's power source to the electronic lock body inside the tailgate, supplying power to the lock body and transmitting unlocking control signals. This solution has the following core drawbacks: First, the connecting cable needs to pass through the tailgate body and the vehicle frame. It is difficult to completely seal the perforation in the body, resulting in poor waterproof performance. Water ingress and short circuits can easily occur during rain or car washes, leading to lock body malfunctions. Second, the tailgate needs to be installed and removed by first plugging and unplugging the connecting cable, which is cumbersome and prevents quick installation and removal of the tailgate. Utility Model Content
[0004] This utility model aims to solve one of the technical problems existing in the prior art.
[0005] This application provides a two-wheeled vehicle electronic tailgate lock system based on wireless power transmission, including a tailgate body, an electronic tailgate lock and a latch, as well as an energy transmitting component and an energy receiving component. The energy receiving component is connected to the electronic tailgate lock via a wire, and the energy transmitting component is connected to an external vehicle power source via a vehicle body connection wire. The energy transmitting component and the energy receiving component achieve electrical power transmission through wireless electromagnetic induction.
[0006] Furthermore, the energy transmission component includes a vehicle power supply, a tailgate opening button, a drive management module, and an energy transmission coil. The vehicle power supply, tailgate opening button, and energy transmission coil are all electrically connected to the drive management module.
[0007] Furthermore, the energy receiving element is an energy receiving coil.
[0008] Furthermore, the electronic tailgate lock includes a power management module, a control drive module, a motor, and a lock cylinder. The energy receiving element and the control drive module are both electrically connected to the power management module, the motor is driven by the electronic tailgate lock, and the control drive module is electrically connected to the motor.
[0009] Furthermore, the drive management module integrates a transmitting coil drive unit and a DC-to-AC conversion unit. The transmitting coil drive unit is electrically connected to the energy transmitting coil and is used to drive the energy transmitting coil to generate an alternating electromagnetic field according to a trigger signal.
[0010] Furthermore, the drive management module integrates a button signal detection unit, which is electrically connected to the tailgate opening button on the vehicle body and is used to detect the button's trigger signal.
[0011] Furthermore, the power management module includes a rectifier and voltage regulator unit. The input terminal of the rectifier and voltage regulator unit is electrically connected to the energy receiving coil, which is used to convert the AC power output by the energy receiving coil into stable DC power to power the control drive module and the motor.
[0012] Furthermore, the energy transmitting component is fixedly installed on the tail box mounting bracket of the external two-wheeled vehicle body, and the energy receiving element is fixedly installed on the inner bottom of the tail box body. After the tail box is installed in place, the energy transmitting component and the energy receiving element are arranged coaxially opposite each other.
[0013] Furthermore, the tailgate body includes an upper tailgate body and a lower tailgate body, with the energy receiving element and electronic tailgate lock located in the lower tailgate body, and the latch located in the upper tailgate body.
[0014] Furthermore, the electronic tailgate lock is located at the lower tailgate opening, and the latch is located at the upper tailgate opening and corresponds to the electronic tailgate lock.
[0015] The beneficial effects of this utility model are as follows:
[0016] 1. The separate structure of the energy transmitting component and the energy receiving component at the tailgate end enables the transmission of electrical energy through wireless electromagnetic induction. Combined with the overall design that eliminates the physical cable connection between the tailgate and the vehicle body, the cable perforation in the tailgate body is eliminated from the root, completely solving the waterproof sealing problem caused by wired connection, and greatly improving the waterproof performance and operational reliability of the electronic tailgate lock system.
[0017] 2. The positioning structure, which fixes the energy transmitting component to the vehicle's tailgate mounting bracket and the energy receiving coil to the bottom of the tailgate, combined with the coupling design where the two coils are coaxially arranged opposite each other after the tailgate is installed, allows the tailgate to be disassembled and reassembled only by completing the mechanical structure, without the need to plug or unplug cables. This enables quick disassembly and assembly of the tailgate, while ensuring that the coil automatically aligns to the optimal coupling position after each installation, thus balancing wireless power transmission efficiency and ease of use. Attached Figure Description
[0018] Figure 1 This is a circuit control diagram of a two-wheeled vehicle electronic tailgate lock system based on wireless power transmission, as described in this application.
[0019] Figure 2 This is a perspective view of a two-wheeled vehicle electronic tailgate lock system based on wireless power transmission, as described in this application.
[0020] Figure 3 This is a perspective view of the vehicle tailgate mounting bracket and energy transmission component in the installation state of the embodiments of this application;
[0021] Figure 4 This is a perspective view of the energy transmitting component, energy receiving element, electronic tailgate lock, and latch in the embodiments of this application.
[0022] Figure Labels
[0023] 1-Electronic tailgate lock, 101-Power management module, 102-Control drive module, 103-Motor, 104-Lock cylinder, 2-Latch, 3-Wire, 4-Body connection wire, 5-Body power supply, 6-Body tailgate opening button, 7-Drive management module, 8-Energy transmitting coil, 9-Energy receiving coil, 10-Upper tailgate body, 11-Lower tailgate body, 12-Body tailgate fixing bracket. Detailed Implementation
[0024] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0025] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0026] The electronic tailgate lock system for two-wheeled vehicles based on wireless power transmission, provided in this application, will be described in detail below with reference to the accompanying drawings and through specific embodiments and application scenarios.
[0027] Example 1:
[0028] This application provides a two-wheeled vehicle electronic tailgate lock system based on wireless power transmission, including a tailgate body, an electronic tailgate lock 1 and a latch 2, as well as an energy transmitting component and an energy receiving component. The energy receiving component is connected to the electronic tailgate lock 1 through a wire 3, and the energy transmitting component is connected to an external vehicle power source through a vehicle body connection wire 4. The energy transmitting component and the energy receiving component achieve electrical power transmission through wireless electromagnetic induction.
[0029] In this embodiment of the application, the energy transmission component includes a vehicle power supply 5, a vehicle trunk opening button 6, a drive management module 7, and an energy transmission coil 8. The vehicle power supply 5, the vehicle trunk opening button 6, and the energy transmission coil 8 are all electrically connected to the drive management module 7.
[0030] In this embodiment of the application, the energy receiving element is an energy receiving coil 9.
[0031] like Figures 1 to 3 As shown, due to the above structure, under normal conditions, the electronic tailgate lock 1 is in the locked state, there is no electromagnetic energy transmission between the energy transmitting component and the energy receiving component, and there is no electrical connection between the tailgate and the vehicle body. The tailgate can be directly mechanically disassembled and assembled from the vehicle body without the need for cable plugging and unplugging. When the tailgate needs to be opened, the vehicle power supply 5 supplies power to the energy transmitting component, which generates an alternating electromagnetic field. The energy receiving component obtains electrical energy through wireless electromagnetic induction coupling and transmits the electrical energy directly to the electronic tailgate lock 1 through the wire 3. After the electronic tailgate lock 1 is energized, it performs the unlocking action to complete the opening of the tailgate.
[0032] Example 2:
[0033] In this embodiment, in addition to the structural features of the aforementioned embodiments, the electronic tailgate lock 1 includes a power management module 101, a control drive module 102, a motor 103, and a lock cylinder 104. The energy receiving element and the control drive module 102 are both electrically connected to the power management module 101. The motor 103 is drive-connected to the electronic tailgate lock 1, and the control drive module 102 is electrically connected to the motor 103.
[0034] In this embodiment of the application, the drive management module 7 integrates a transmitting coil drive unit and a DC-to-AC conversion unit. The transmitting coil drive unit is electrically connected to the energy transmitting coil 8 and is used to drive the energy transmitting coil 8 to generate an alternating electromagnetic field according to a trigger signal.
[0035] In this embodiment of the application, the drive management module 7 integrates a button signal detection unit, which is electrically connected to the trunk opening button 6 and is used to detect the button's trigger signal.
[0036] In this embodiment of the present application, the power management module 101 includes a rectifier and voltage regulator unit. The input terminal of the rectifier and voltage regulator unit is electrically connected to the energy receiving coil 9 and is used to convert the AC power output by the energy receiving coil 9 into stable DC power to power the control drive module 102 and the motor 103.
[0037] like Figures 1 to 3As shown, due to the aforementioned structure, when the trunk is in a locked standby state, the drive management module 7 is in a low-power sleep state, the vehicle power supply 5 has no continuous operating current output, the energy transmitting coil 8 does not generate an alternating electromagnetic field, the energy receiving coil 9 at the trunk end has no induced energy output, and the electronic trunk lock 1 is in a power-off locked state. When the user triggers the unlocking operation by pressing the trunk opening button 6, the button signal detection unit integrated in the drive management module 7 detects the button closure trigger signal in real time, immediately wakes up the drive management module 7 and starts the transmitting coil drive unit. The transmitting coil drive unit outputs a high-frequency alternating drive current to the energy transmitting coil 8, driving the energy transmitting coil 8 to generate a high-frequency alternating electromagnetic field, completing the power transmission. The wireless transmission is achieved by the energy receiving coil 9 at the tailgate end acquiring high-frequency AC power through electromagnetic induction coupling and transmitting the power to the power management module 101. The rectifier and voltage regulator unit built into the power management module 101 rectifies, filters, and regulates the input high-frequency AC power, converting it into stable DC power, which is then synchronously output to the control drive module 102. Upon receiving power, the control drive module 102 immediately generates a drive signal for the motor 103, outputs it to the motor 103, and drives the motor 103 to operate. The motor 103 drives the lock cylinder 104 to complete the unlocking action, realizing one-button opening of the tailgate. After the unlocking action is completed, the drive management module 7 delays and cuts off the output of the transmitting coil drive unit, and the system returns to the low-power locked standby state.
[0038] Example 3:
[0039] In this embodiment, in addition to the structural features of the aforementioned embodiments, the energy transmitting component is fixedly installed on the tail box mounting bracket 12 of the external two-wheeled vehicle body, and the energy receiving element is fixedly installed on the inner bottom of the tail box body. The energy transmitting component and the energy receiving element are arranged coaxially opposite each other after the tail box is installed in place.
[0040] like Figures 1 to 3As shown, due to the above structure, the energy transmitting component is pre-fixed on the tail box mounting bracket 12 of the two-wheeled vehicle body, and pre-connected to the vehicle body connection line 4 of the energy transmitting component, eliminating the need for repeated operations during tail box disassembly and assembly. The energy receiving element is pre-fixed to the inner bottom of the tail box body, and connected to the electronic tail box lock 1 inside the tail box by the built-in wire 3, with no exposed wiring harness. When the tail box body is installed on the vehicle body tail box mounting bracket 12 and mechanically locked, the energy transmitting component and the energy receiving element automatically achieve coaxial relative positioning, with their central axes completely overlapping. The only barrier between them is the non-metallic bottom plate of the tail box body, with no metal obstructions, forming a highly efficient electromagnetic coupling channel. When the system performs the unlocking operation, the alternating electromagnetic field generated by the energy transmitting component can be coupled and received by the energy receiving element to the maximum extent through the coaxial relative arrangement structure, greatly reducing electromagnetic energy loss and improving wireless power transmission efficiency and power supply stability. When the tail box needs to be disassembled, only the mechanical connection between the tail box and the tail box mounting bracket 12 needs to be released, and the tail box can be directly removed. The energy transmitting component and the energy receiving element naturally separate with mechanical disassembly.
[0041] Example 4:
[0042] In this embodiment, in addition to the structural features of the aforementioned embodiments, the tail box includes an upper tail box 10 and a lower tail box 11, an energy receiving element and an electronic tail box lock 1 are disposed in the lower tail box 11, and a latch 2 is disposed in the upper tail box 10.
[0043] In this embodiment of the application, the electronic tailgate lock 1 is located at the opening of the lower tailgate 11, and the latch 2 is located at the opening of the upper tailgate 10 and corresponds to the electronic tailgate lock 1.
[0044] like Figures 1 to 3 As shown, due to the aforementioned structure, the tailgate adopts a split upper and lower design. The upper tailgate 10 and lower tailgate 11 fit together to form a complete storage cavity. The energy receiving element and the electronic tailgate lock 1 are integrated into the closed cavity of the lower tailgate 11, without occupying any storage space. This also prevents external moisture and dust from corroding the electronic components, improving waterproof and dustproof performance. The latch 2 is fixedly installed at the opening of the upper tailgate 10, corresponding one-to-one with the position of the electronic tailgate lock 1 at the opening of the lower tailgate 11. When the trunk is closed, the upper trunk body 10 and the lower trunk body 11 are fully engaged, and the latch 2 is simultaneously engaged in the locking position of the electronic trunk lock 1. The electronic trunk lock 1 completes the locking action, locking the upper trunk body 10 and the lower trunk body 11 together. When the system receives the unlocking command, the energy receiving element obtains the power transmitted wirelessly and supplies it to the electronic trunk lock 1. After the electronic trunk lock 1 is powered on, it performs the unlocking action, releasing the locking limit of the latch 2. At this time, the upper trunk body 10 can be separated from the lower trunk body 11, completing the trunk opening operation.
[0045] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
[0046] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A two-wheeled vehicle electronic tailgate lock system based on wireless power transmission, comprising a tailgate body, an electronic tailgate lock, and a latch, characterized in that, It also includes an energy transmitting component and an energy receiving component. The energy receiving component is connected to the electronic tailgate lock via a wire, and the energy transmitting component is connected to an external vehicle power source via a body connection wire. The energy transmitting component and the energy receiving component transmit electrical energy through wireless electromagnetic induction.
2. The electronic tailgate lock system for a two-wheeled vehicle based on wireless power transmission according to claim 1, characterized in that, The energy transmission component includes a vehicle power supply, a vehicle tailgate opening button, a drive management module, and an energy transmission coil. The vehicle power supply, the vehicle tailgate opening button, and the energy transmission coil are all electrically connected to the drive management module.
3. The electronic tailgate lock system for a two-wheeled vehicle based on wireless power transmission according to claim 1, characterized in that, The energy receiving element is an energy receiving coil.
4. The electronic tailgate lock system for a two-wheeled vehicle based on wireless power transmission according to claim 1, characterized in that, The electronic tailgate lock includes a power management module, a control drive module, a motor, and a lock cylinder. The energy receiving element and the control drive module are both electrically connected to the power management module. The motor is driven by the electronic tailgate lock, and the control drive module is electrically connected to the motor.
5. A two-wheeled vehicle electronic tailgate lock system based on wireless power transmission according to claim 2, characterized in that, The drive management module integrates a transmitting coil drive unit and a DC-to-AC conversion unit. The transmitting coil drive unit is electrically connected to the energy transmitting coil and is used to drive the energy transmitting coil to generate an alternating electromagnetic field according to a trigger signal.
6. A two-wheeled vehicle electronic tailgate lock system based on wireless power transmission according to claim 2, characterized in that, The drive management module integrates a button signal detection unit, which is electrically connected to the tailgate opening button on the vehicle body and is used to detect the button's trigger signal.
7. A two-wheeled vehicle electronic tailgate lock system based on wireless power transmission according to claim 4, characterized in that, The power management module includes a rectifier and voltage regulator unit. The input terminal of the rectifier and voltage regulator unit is electrically connected to the energy receiving coil and is used to convert the AC power output by the energy receiving coil into stable DC power to power the control drive module and the motor.
8. The electronic tailgate lock system for a two-wheeled vehicle based on wireless power transmission according to claim 1, characterized in that, The energy transmitting component is fixedly installed on the tail box mounting frame of the external two-wheeled vehicle body, and the energy receiving element is fixedly installed on the inner bottom of the tail box body. The energy transmitting component and the energy receiving element are arranged coaxially opposite each other after the tail box is installed in place.
9. A two-wheeled vehicle electronic tailgate lock system based on wireless power transmission according to claim 1, characterized in that, The tailgate includes an upper tailgate and a lower tailgate. The energy receiving element and the electronic tailgate lock are located in the lower tailgate, and the latch is located in the upper tailgate.
10. A two-wheeled vehicle electronic tailgate lock system based on wireless power transmission according to claim 9, characterized in that, The electronic tailgate lock is located at the lower tailgate opening, and the latch is located at the upper tailgate opening and corresponds to the electronic tailgate lock.