Electric two-wheeled vehicle and tricycle convenient to charge outdoors

Abstract

The invention discloses an electric two-wheeled vehicle and tricycle convenient to charge outdoors. The electric two-wheeled vehicle and tricycle convenient to charge outdoors comprise a frame and a battery. The vehicle is characterized in that the front portion of the vehicle is provided with a front charging interface and a supporting structure used for supporting charging equipment, and the front charging interface and the supporting structure are adjacently arranged in space; the front charging interface is configured to be capable of being electrically connected with the battery, and at least part of a connecting cable from the battery to the interface is arranged in the frame main pipe or fixedly arranged along the outer surface of the frame main pipe. According to the invention, the charging system is preposed and integrated, so that the chain problems of insufficient cable length, no place for arranging a charger, inconvenience in operation, lack of outdoor protection and the like caused by the postposition of a charging interface in a public charging scene are systematically solved, and the charging system has the advantages of reasonable structure, convenience in use, high safety and low cost.

Description

Technical Field

[0001] This invention relates to the field of personal electric vehicle technology, specifically to an improved charging system structure for electric two-wheelers and three-wheelers, and in particular to a charging system that is convenient for use in outdoor public charging scenarios. Background Technology

[0002] Currently, electric two-wheelers and three-wheelers have become important tools for daily travel for urban and rural residents. Based on national fire safety regulations, charging these vehicles is explicitly prohibited inside buildings or households and must be completed at centralized charging facilities such as outdoor public charging sheds or designated charging areas. The core characteristics of this scenario are: the charging outlet is fixed to a wall or pillar, and the vehicle must drive into a designated parking space with its front end as close as possible to the outlet.

[0003] However, the charging ports of commercially available electric two-wheelers and three-wheelers are generally and conventionally located at the rear of the vehicle or under the seat. This industry-standard design fundamentally and systematically contradicts the physical layout requirements of public charging scenarios, leading to a series of chain reactions of safety risks, operational difficulties, and a poor user experience.

[0004] Insufficient cable length poses significant safety hazards and adds to user burden: Because the charging port is located far from the charging power strip, the original cable length is severely insufficient. Users are forced into a dilemma: either carry their own long adapter cable, adding to their daily commute; or struggle to pull and tangle the original cable on-site, easily leading to increased contact resistance between the plug and socket, poor contact, abnormal heating, and electric arcing, posing a serious fire hazard. Even if the cable length is sufficient, excessively long cables tangled and dragging on the ground in limited charging spaces create a cluttered environment, easily causing other vehicles to scrape or trip over them. This can result in anything from accidental charging interruptions to loose connections, continuous heating, and even a fire.

[0005] The lack of a suitable place to mount the charger module exacerbates equipment risks and user inconvenience: External charger modules lack dedicated, stable mounting spaces. Users typically have to suspend them in the middle of the cable or place them on the ground. In windy weather, the dangling charger is prone to falling and damage, and the frequent shaking at the connection point with the charging port increases the risk of loose connections and arcing.

[0006] The outdoor environment directly threatens the safety of equipment and personnel: the entire charging system is directly exposed to harsh outdoor conditions. Charging in the rain poses risks of leakage and short circuits; under direct sunlight, the charger is prone to overheating and damage, posing a fire risk.

[0007] Parking and turning around the vehicle is extremely inconvenient: In order to align the charging port with the wall socket, the driver usually has to adjust the vehicle's position in a narrow space with difficulty, and even repeatedly reverse and turn around, which is cumbersome and easy to cause scratches.

[0008] The inventors of this invention have noted that although some electric vehicles also use front-mounted charging interfaces, their technical content and the problems they aim to solve are fundamentally different from those in this application. The location planning of electric vehicle charging interfaces is primarily based on the inherent engineering logic of electric vehicles as complex electromechanical systems, aiming to optimize the layout of high-voltage wiring harnesses, balance front and rear axle loads, and coordinate with components such as the front compartment cooling system and collision safety zone. For example, a grille structure suitable for electric vehicles with front-mounted charging interfaces, as disclosed in existing patent CN108162902B, exposes the charging interface at the front of the vehicle by setting a foldable second grille body. This design integrates the charging interface while meeting the requirements of the radiator grille, demonstrating the engineering complexity of automotive-grade solutions serving the overall vehicle styling, component integration, and brand recognition. Furthermore, electric vehicles generally use public charging stations, which are equipped with sufficiently long cables to meet the charging needs of the charging interface at any location. This fundamentally eliminates the limitation of the charging interface location on vehicle parking accuracy and eliminates the need to consider the placement of external chargers.

[0009] In contrast, the electric two-wheelers and three-wheelers targeted in this application face fundamentally different constraints and requirements: their structures are extremely compact, cost is extremely sensitive, and their core application scenario involves connecting a built-in external charger to a fixed wall socket. The complex and costly charging interface solutions adopted by electric vehicles based on their inherent engineering requirements (such as modifications to the vehicle body structure involving movable grilles) are completely unrelated to the unique challenges this application aims to overcome in specific charging scenarios: "precise cable length matching," "stable and nearby placement of the external charger," and "achieving basic outdoor protection under extremely low cost constraints." There is no connection in terms of technical inspiration between the two, and those skilled in the art cannot obtain any simple, low-cost, and effective guidance from the former on placing the charging interface at the front to systematically solve the outdoor charging problem of two-wheelers.

[0010] The inventors further noted that electric bicycles designed under the framework of the "Safety Technical Specifications for Electric Bicycles" (GB17761-2018, commonly known as the "New National Standard") and occupying the mainstream market share distinct technical characteristics: they generally possess pedal-assist functionality (note: this specification requires this function; actual vehicles may have pedals installed, or have reserved installation locations or components), the overall structure is highly compact, and they are subject to extremely strict cost control constraints. Based on the rigid demands of daily use, these models generally have a functional basket at the front of the vehicle. However, a prominent structural contradiction lies in the fact that the most suitable public charging scenario for this type of vehicle is when the vehicle enters a fixed parking space, with the front of the vehicle closest to the wall outlet. In stark contrast, perhaps due to the inertia of traditional design and extreme cost constraints, the charging interface of this type of vehicle almost invariably adopts a rear-mounted solution. As a result, a series of problems described in the background technology of this application (paragraphs

[0004] -

[0007] ) such as insufficient cable length, no place to place the charger, inconvenient operation, and safety hazards are particularly prominent and widespread in this most popular type of vehicle.

[0011] Furthermore, the inventors have observed that some electric motorcycles on the market (hereinafter referred to as "electric motorcycles") adopt a one-piece seat design where the rear seat and driver's seat are integrated. The space underneath is usually completely occupied by the battery compartment or storage compartment, making it impossible to implement the conventional solution of placing the charging port under the seat, as is common in traditional electric two-wheelers. Therefore, these electric motorcycles are forced to place the charging port on the surface at the front of the seat bucket, or in a built-in storage pocket / groove (commonly known as a "car pocket") below the handlebars and near the keyhole. However, upon in-depth analysis, this design has fundamental and undeniable limitations:

[0012] First, the functionality is extremely limited. The design merely moves the physical location of the charging port forward, which can be seen as a "displacement" change, but it completely fails to provide a support structure specifically for placing and holding the external charger module, leaving the core pain point of "nowhere to put the charger" unresolved.

[0013] Secondly, this defect harbors serious operational inconveniences and safety hazards, particularly pronounced in vehicles equipped with windshields or large front grilles. Their charging ports are often deeply embedded within complex body panels or poorly laid out. In actual charging operations, especially when the charging port is recessed into confined spaces like the car's storage compartment, plugging and unplugging becomes extremely difficult, and the charger cable frequently needs to weave back and forth between body parts such as the windshield. This not only leads to cumbersome operation and a poor user experience but also unnecessarily wastes the effective usable length of the cable, triggering a series of chain reactions: In many situations, the theoretical length of the original cable might be sufficient, but due to being forced to navigate around obstacles, its actual usable length becomes strained or even insufficient, ultimately preventing the charger module from being securely placed. It is left awkwardly suspended in mid-air, or its connecting cable is taut and protruding from the outside of the vehicle. This significantly increases the risk of the cable or charger being scratched by passing vehicles or pedestrians, while also posing a significant tripping hazard and equipment damage risk, raising serious safety concerns.

[0014] Therefore, based on comprehensive analysis, this type of simple "front-mounted interface" solution is essentially just an isolated, mechanical engineering modification that hasn't been thoroughly considered and verified in real-world usage scenarios. It falls far short of constituting a highly integrated systemic solution for the specific, high-frequency scenario of "charging with an external charger in front of a fixed power strip," encompassing precise interface positioning, secure device placement, standardized cable management, and basic outdoor protection. The convenience and security it offers are not substantially or significantly improved compared to traditional rear-mounted interface solutions.

[0015] In contrast, electric bicycles and electric motorcycles differ fundamentally in their design intent, core architecture, and user scenarios. Electric motorcycles typically lack a front basket, and their charging port solutions on the front half of the vehicle are often designed to address layout constraints (such as space occupied by the seat compartment) without systematically considering integration with the support, placement, and outdoor protection of an external charger. Furthermore, these solutions are costly. Electric bicycles, on the other hand, are characterized by a front basket, compact structure, and extreme cost sensitivity. Their user charging scenarios also differ significantly from those of electric motorcycle users. Therefore, solutions for electric motorcycles cannot be directly transplanted or adapted to electric bicycles that meet the new national standard.

[0016] Therefore, the market urgently needs a systematic solution for outdoor charging that is low-cost, highly convenient, and highly safe, specifically designed for the structural characteristics and usage scenarios of electric two-wheelers and three-wheelers. Summary of the Invention

[0017] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a structurally sound and user-friendly electric two-wheeled and three-wheeled vehicle for outdoor charging. This invention systematically solves a series of problems in specific scenarios such as public charging sheds, including insufficient cable length, lack of charger placement, inadequate outdoor protection, and inconvenience in parking and turning the vehicle, caused by the rear-mounted charging interface. The core of this invention lies in systematically placing the vehicle's charging connection function at the front and optimizing the spatial configuration of the front area to adapt to the physical layout of public charging scenarios where the front of the vehicle is closest to a fixed power strip. This systematically solves problems such as excessively long cables, lack of equipment placement, and inconvenient operation.

[0018] To achieve the above objectives, the present invention adopts the following technical solution: An electric two-wheeled and three-wheeled vehicle that is easy to charge outdoors, comprising a frame and a battery, characterized in that, The vehicle is equipped with a front-mounted charging port. The front of the vehicle is also provided with a support structure for supporting external charging equipment. The support structure is configured such that when an external charging device is placed on it, the connection cable of the external charging device can be easily connected to the front charging interface. The front charging port is configured to form an electrical connection with the battery.

[0019] In a preferred embodiment, the supporting structure is a basket at the front of the vehicle; the spatial configuration between the front charging port and the basket is one of the following: Method A: The plug-in operation interface of the front charging port is located in the internal space of the basket or is exposed in the internal space through an opening in the basket wall panel. Method B: The front charging port is located on the front component of the vehicle outside the basket.

[0020] In a preferred embodiment, the basket is equipped with an openable waterproof cover; And / or, the bottom or side wall of the basket is provided with a heat dissipation grille; And / or, the basket is provided with a locking mechanism for securing an external charger during charging.

[0021] In a preferred embodiment, the support structure is provided with a holding mechanism; the holding mechanism is configured to selectively hold an external charger or mobile communication device.

[0022] In a preferred embodiment, the connection cable from the battery to the front charging interface is at least partially laid inside the main frame tube or fixedly installed along the outer surface of the main frame tube.

[0023] In a preferred embodiment, the support structure is provided with a suspension device; and / or, the external charger is provided with a suspension part that cooperates with the suspension device.

[0024] In a preferred embodiment, the front charging interface, its mounting bracket, and the support structure together constitute an independently assembleable charging module assembly; the charging module assembly is mounted to the vehicle body via mechanical connectors and is electrically connected to the vehicle battery via a detachable electrical connection interface.

[0025] In a preferred embodiment, an indicator light is provided at the front charging port; the indicator light is configured to perform one or a combination of the following functions: indicating the location of the charging port, providing illumination, or displaying the charging status.

[0026] Based on the provision of a front charging port and / or a support structure for supporting an external charging device at the front of the vehicle, the present invention also provides another preferred embodiment, wherein: A charging unit is provided at the front of the vehicle, and the charging unit includes: An external power connection part for connecting to mains power; A charger module, the input terminal of which is electrically connected to the external power connection part, and the output terminal of which is electrically connected to the battery; and A supporting structure is provided for fixing and mounting the charger module. The charger module and the external power connection part are structurally integrated into one unit.

[0027] In a preferred embodiment, the front of the vehicle is provided with a cable storage structure for storing a charging cable, one end of which is used to connect to mains power.

[0028] Compared with the prior art, the present invention has the following significant advantages.

[0029] 1. A revolutionary improvement in the convenience and safety of charging operations: By configuring the support structure so that when an external charging device is placed on it, the connection cable of the external charging device can be easily connected to the front charging interface, achieving a direct connection with the wall-mounted power strip with the shortest distance, without tangling or pulling. This fundamentally eliminates major fire hazards such as increased contact resistance, abnormal heating, and electric arc sparks caused by self-installed adapter cables or excessive stretching of original cables. At the same time, it completely solves the risks of messy cables, tripping, and scratching in public charging places.

[0030] 2. This invention provides two highly integrated system solutions: external and internal charging. It not only offers a dedicated, stable, and convenient space for cable connections for external charging devices through the supporting structure (such as a bicycle basket), but also provides users with a higher-level option of internal charging through a charging unit solution that structurally integrates the charger module and the external power connection part. Both solutions organically integrate multiple pain points of outdoor charging (interface positioning, device placement, waterproofing and heat dissipation), forming a low-cost, high-efficiency one-stop solution.

[0031] 3. A solid foundation for modular design and high reliability is laid: The independently assembleable charging module assembly design greatly improves the efficiency of production assembly and after-sales maintenance. Through multiple detailed design features, including built-in cable routing, avoidance of turning areas, shock absorption design, anti-loosening fixation, and insulation protection, the entire charging system provides safety guarantees far exceeding those of traditional rear-mounted interface vehicles, ensuring long-term operational reliability.

[0032] 4. Highly practical and competitive in the market: All designs are closely integrated with the compact structure and cost-sensitive nature of two-wheeled / tricycle vehicles, fundamentally different from complex and high-cost electric vehicle charging solutions. This invention precisely addresses the pain points of outdoor charging scenarios required by national regulations, providing a highly targeted and operable solution with significant market potential. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the invention applied to a tricycle.

[0034] Figure 2 This is a schematic diagram of the invention applied to an electric bicycle.

[0035] Figure 3 This is a schematic diagram of the present invention applied to an electric bicycle and having an integrated charging module.

[0036] Figure 4 This is a schematic diagram of the present invention applied to an electric motorcycle and having a built-in integrated charging module.

[0037] Figure 5 This is a schematic diagram showing the installation position of the charging interface and support structure of the present invention.

[0038] Figure 6 This is a schematic diagram showing the installation positions of the integrated module and cable storage device of the present invention.

[0039] Figure 7 This is a schematic diagram showing the installation position of the charging interface relative to the basket of the present invention.

[0040] The diagram is labeled as follows: 1. Basket; 2. Charging interface; 2a. Charging interface; 2b. Charging interface; 2c. Charging interface installation position; 2d. Charging interface installation position; 2e. Charging interface installation position; 2f. Charging interface installation position; 2g. Cable connecting the charging module and the mains power; 2h. Outlet of the cable connecting the charging module and the mains power; 3. Battery; 4. Tire; 5. Frame; 6. Throttle; 7. Light; 8. Support structure; 9. Support structure; 12. Integrated charging module; 13. Schematic diagram of cable routing; 14. Electric vehicle windshield; 15. Integrated charging module installed in the windshield; 16. Cable management device installed in the windshield. Detailed Implementation

[0041] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited thereto. Those skilled in the art can make corresponding modifications within the spirit of the present invention, and these modifications should also be considered within the scope of protection of the present invention.

[0042] It should be noted that the understanding of the following technical features in this invention is based on their function and effect, and not limited to a specific form:

[0043] 1. Regarding the "front charging interface": Its core function is to provide an electrical connection point for charging devices. Specific implementations include, but are not limited to, various conventional electrical connector interfaces in the art (such as DC005 interfaces, aviation plugs, etc.), or plugs directly formed at the end of charging cables (such as various forms of power plugs, including national standard and American standard plugs). As long as the "electrical connection" function is achieved, it should fall within the protection scope of this invention.

[0044] 2. Regarding "External Power Connection Section": This is a specific form of "Front-mounted Charging Interface," referring to the interface used to connect to mains power. It also includes forms such as a fixed socket interface (female end) or a power plug at the end of a cable (male end).

[0045] 3. Regarding the "support structure" and "holding mechanism": Their core function is to house charging equipment or other personal belongings. Therefore, the "holding mechanism" or "suspension device" on this structure is not limited to holding external chargers; it can also be used to suspend mobile communication devices or place other personal belongings (such as handbags or shopping bags). It is understood that the support structure includes structures already equipped in the vehicle that can achieve the same support function (such as original baskets or shelves), and is not necessarily a new component. Such modifications based on the same structure (whether new or existing) to achieve additional uses should be considered to fall within the scope of protection of this invention.

[0046] 4. Regarding the implementation of "electrical connection": In this invention, the core of "electrical connection between the front charging interface and the battery" and "electrical connection" between any components lies in achieving reliable electrical conduction. Those skilled in the art will understand that this can be achieved through various mature and conventional electrical connection processes, including but not limited to: soldering (such as tin soldering), screw terminal fastening, elastic snap-fit ​​connection, crimping, etc., or combinations of these methods. As long as a stable, low-resistance electrical connection can be achieved, the specific process selection should be considered conventional methods for those skilled in the art and falls within the scope of protection of this invention based on the functional description.

[0047] 5. Regarding "electric tricycle": The "electric tricycle" described in this invention includes, but is not limited to, all types of tricycles, such as freight tricycles and passenger tricycles (e.g., covered passenger vans). (See attached diagram) Figure 1 The example shown is a freight tricycle, used only to clearly illustrate the technical solution of the present invention. Its specific vehicle model structure should not be construed as limiting the scope of protection of the present invention. Those skilled in the art should understand that the charging system solution of the present invention can be equally applied to other types of electric tricycles. Example 1: Basic Pre-charging System

[0048] This invention provides a basic implementation. An electric two-wheeled vehicle includes a frame and a battery (typically located below the foot pedals or inside the seat). A front-mounted charging port (2) is provided at the front of the vehicle. This port (2) is fixed to the main frame tube by a mounting bracket. The mounting bracket can be fixed in various ways, including but not limited to: permanently fixed to the main frame tube by welding; fitted onto the main frame tube by a collar or clamp structure and secured with threaded fasteners (such as screws); or manufactured integrally with the main frame tube. The mounting bracket may be an arc-shaped metal plate to ensure a secure installation without damaging the original frame structure. To improve reliability, at least one shock-absorbing element (such as a rubber pad) is provided between the mounting bracket and the charging port body (2) to effectively absorb vibrations during vehicle operation. At least a portion of the connecting cable from the battery to the front-mounted charging port (2) is routed within the internal cavity of the main frame tube. The exit position of the cable from the main tube is precisely calculated to completely avoid the steering area of ​​the front fork. If the cable is laid along the outer surface of the main frame tube, it is reliably secured by anti-loosening cable clips or cable ties. The front of the vehicle is also provided with a support structure for supporting the charging equipment, such as a simple bracket. The support structure is spatially adjacent to the front charging interface (2).

[0049] This basic embodiment significantly shortens the charging distance and improves convenience and safety by fronting the interface and optimizing the wiring. Example 2: Preferred solution for integrating bicycle basket and protection (fixed bicycle basket)

[0050] Based on Embodiment 1, a highly preferred embodiment of the present invention is to deeply integrate the support structure with the inherent basket at the front of the vehicle. The support structure is the basket (1) at the front of the vehicle. The basket (1) is fixedly connected to the frame via a bracket, and its position does not change with the rotation of the handlebars (fixed basket). The installation position of the front charging port (2) is precisely configured to be associated with the basket (1). The integration method is as follows:

[0051] Method A: At least a portion of the front charging port (2) is disposed within the interior space of the basket (1);

[0052] Method B (External Proximity): The front charging port (2) is installed at the front of the vehicle body and is located in the space area outside the basket (1), and is spatially adjacent to the basket (1).

[0053] To further enhance its outdoor adaptability, the basket (1) is equipped with an openable waterproof cover, the inside of which can be fitted with a sealing ring. The bottom of the basket (1) is also equipped with a rainproof heat dissipation grille. The basket (1) is equipped with a locking mechanism for securing an external charger during charging.

[0054] This solution integrates front-mounted interface, charger placement, and waterproofing / sun protection, making it a model of a systematic solution. In particular, this layout has a natural advantage for charging in the rain: when the user covers the vehicle with a raincoat, the raincoat will naturally form a "temporary protective cover" that covers the basket (1), providing additional shelter during the charging process. Example 3: Solution for Adapting to a Follow-up Car Basket

[0055] The present invention is also applicable to models where the basket (1) rotates synchronously with the handlebars (a follow-up basket). In this case, the front charging port (2) is fixedly mounted on the bottom or side support structure of the follow-up basket (1) by a mounting bracket. At this time, the charging port (2) and the basket (1) rotate synchronously with the handlebars as a whole. After the connecting cable is led out from the battery, it is connected to the follow-up component through a spiral cable or hose with sufficient slack to ensure that there is no pulling or interference within the maximum turning angle range of the handlebars. This solution ensures that the charging port (2) is always within the range of the "bearing structure" of the basket (1), achieving a high degree of integration and providing a convenient user experience. Explanation of the relationship between charging ports and basket space configuration

[0056] It should be noted that the interpretation of "at least a portion of the front charging interface (2) is disposed within the internal space of the basket (1)" (method A) in the claims of this invention should be interpreted broadly. The core meaning is that the charging interface (2) functionally serves the internal space of the basket (1), and is not limited to the fact that all or most of its physical body is directly located within the space enclosed by the basket body. Specifically, this configuration includes, but is not limited to, the following situations.

[0057] (1) Directly built-in type: The physical body of the charging interface (2) is directly installed and fixed on the bottom or inner surface of the side wall of the basket (1), and its plug-in surface faces directly into the basket.

[0058] (2) Built-in function: The physical body of the charging interface (2) is installed in a recessed structure or independent compartment at the front of the vehicle body, and the installation position is adjacent to the wall panel of the basket (1); at the same time, an opening is opened on the corresponding wall panel of the basket (1); when the basket (1) is installed in place, the plug-in surface of the charging interface (2) is exposed or embedded in the internal space of the basket (1) through the opening, so that the user can perform plug-in and plug-out operations in the internal space of the basket. In this case, although the body of the charging interface (2) may be partially or completely located outside the basket wall panel, since its plug-in function is entirely dependent on the internal space of the basket, it should be considered to fall within the protection scope of method A.

[0059] In other words, as long as the plug-in operation interface of the charging port (2) can be reached and used by the user in the interior space of the basket (1), the implementation scheme shall be considered to conform to the definition of method A.

[0060] Regarding method B above, it should be noted that the "vehicle front component disposed outside the basket" mentioned in the claims refers to all available structures in the external space of the basket. This includes not only vehicle components such as the frame and fork independent of the basket, but also the external surfaces of the basket itself, such as the side walls or supports. As long as the charging interface is located in this area and is spatially adjacent to the basket and functionally compatible, jointly achieving the effect of convenient placement and connection of the charging equipment, it falls within the protection scope of this invention. Example 4: Integrated Unit Scheme with Built-in Charging Module

[0061] Another preferred embodiment of the present invention provides a higher degree of integration. The front charging interface is an external power connection for connecting to mains power. The charging device is a charger module (15) integrated into the vehicle. The input end of the module (15) is electrically connected to the external power connection, and its output end is electrically connected to the battery. The support structure is used to fix the charger module (15) in place. The charger module (15) is fixed to a mounting base by a quick-locking mechanism, so that the charger module (15) and the external power connection are spatially adjacent, thereby forming an integrated charging unit located at the front of the vehicle. To address the challenges of outdoor heat dissipation and waterproofing, the outer shell surface of the charger module (15) is provided with at least one heat dissipation fin. The heat dissipation fin protrudes from the outer shell surface and has a groove-shaped cross-section (such as a U-shaped groove), thereby simultaneously forming a flow channel for guiding liquid flow and a heat dissipation fin for increasing the heat dissipation area. It should be noted that the core of the design of the heat dissipation fins lies in the fact that their extension direction must be adapted to the direction of the wire outlet and the direction of gravity in order to achieve the optimal flow guidance and heat dissipation effect. As a preferred embodiment: when the charger module (15) is installed horizontally and its wire outlet faces the horizontal direction, the heat dissipation fins preferably extend in the vertical direction. In this way, the spilled water will be guided downward along the vertical groove under the action of gravity, thereby avoiding the lateral wire outlet. When the charger module (15) is installed vertically and its wire outlet faces downward, the heat dissipation fins preferably extend in the vertical direction (i.e., parallel to the module axis). At this time, the water flows downward along the surface of the module shell, and the longitudinal heat dissipation fins can effectively guide the water flow to both sides of the shell, so that it avoids the wire outlet area directly below.

[0062] To achieve ultimate ease of operation and modularity, the connection between the charging cable for connecting to AC power and the integrated charging unit is designed as a pluggable connector interface.

[0063] The electrical connection between the integrated charging unit and the vehicle battery is also designed as a pluggable connector interface.

[0064] Detailed implementation: A fixed female connector (such as a standard AC socket, national standard, or American standard) is provided on the input end (i.e., the external power connection part) of the charger module (15) or on its adjacent integrated unit housing. Correspondingly, one end of the AC charging cable terminates at a standard power plug (male). The user only needs to insert the plug into the female connector to complete the charging preparation.

[0065] Correspondingly, the electrical connection between the output of the integrated charging unit (15) and the vehicle battery can also be achieved through a standard, high-current-capacity DC connector (such as an XT60 interface, Anderson interface, etc.). This facilitates the quick removal of the entire integrated charging unit from the vehicle for maintenance or replacement.

[0066] Advantages: Plug and play, simple and intuitive connection operation, no different from charging household appliances, no tools required by the user.

[0067] Modular and portable: The charging cable can be stored and carried independently of the vehicle. Users can replace the standard cable with different lengths as needed (e.g., for charging scenarios of different lengths), and can even carry the cable with them as part of the anti-theft measure.

[0068] Easy to replace: If the charging cable is damaged, only the cable needs to be replaced, without the need to repair the entire charging unit, thus reducing maintenance costs. Example 5: Modular Assembly and Cable Management

[0069] The charging system of the present invention is modular. The front charging interface (2), its mounting bracket, and the supporting structure (such as the basket 1) can together form an independently assembleable charging module assembly. This assembly is mounted to the vehicle body via mechanical connectors (such as bolts) and is electrically connected to the vehicle battery via a detachable electrical connection interface (such as a pluggable electrical connector or terminal block), facilitating production and maintenance. In addition, the front of the vehicle may also be provided with a cable storage structure (such as a storage box containing a winding post) for storing the charging cable whose end is connected to the mains power.

[0070] Integrated cable storage structure: To solve the problem of excess cables piling up during charging and to avoid the risk of tripping and equipment damage caused by them dragging on the ground and getting tangled, the integrated charging unit or its supporting structure is equipped with a dedicated cable storage structure.

[0071] The specific implementation methods of this storage structure include, but are not limited to:

[0072] Cable winding post design: Several (usually 2 to 4) cable winding posts protrude from the side or bottom of the integrated unit's casing. The edges of these posts are rounded to prevent cable damage. Users can wind excess cable around the posts in a figure-eight or loop pattern, allowing for precise cable length control and keeping the work area tidy. Cable tie fixing design: The unit casing features fixing hooks or cable slots, and a reusable Velcro or elastic cable tie is provided. Users can coil excess cable and secure it in the designated location using the cable tie.

[0073] Telescopic cable reel design (high-end solution): For higher-end models, a telescopic cable reel with a built-in spring can be integrated. During use, the user can pull the cable out to the desired length; after charging is complete, releasing the cable will cause it to automatically retract into the housing under the action of the spring, achieving fully automatic storage and providing an excellent user experience.

[0074] Unified Design for Storage and Use: The aforementioned cable management solution is highly consistent with the modular design concept. The pluggable charging cables and storage structure together form a user-friendly and well-organized charging terminal. When not charging, the cables can be neatly stored in a designated location on the vehicle, seamlessly integrated with the unit, without affecting the vehicle's aesthetics or riding safety. When charging, users can freely choose between vertical connection (shortest connection) or using a portion of the cable (medium-distance connection), and manage excess length through the storage structure. Example 6: Charging interface solution with status indication

[0075] To further enhance user experience and safety, the front charging port (2) of this invention is provided with an indicator light for indicating its position and / or charging status. Embodiments of the indicator light include, but are not limited to:

[0076] 1. Position indication function: In the dark or dimly lit environment, the indicator light (40) can emit a constant light or a breathing flashing light (such as white or blue light) to illuminate the area around the interface and indicate its precise position, so that users can quickly and accurately plug and unplug the charging plug.

[0077] 2. Charging status indication function: The indicator light (40) can display different operating states of the system through different colors, flashing frequencies, or combinations of on / off states. For example:

[0078] Standby / Not charging state: Can emit a solid green light.

[0079] Charging in progress: It can emit a breathing flashing blue light or a solid orange light.

[0080] Charging complete / fully charged: emits a solid blue light.

[0081] Fault conditions (such as poor contact or overload): can emit a rapidly flashing red light alarm.

[0082] 3. Integrated design: The indicator light can be integrated into the housing of the front charging interface (2), or it can be set on its mounting bracket or adjacent support structure (such as the basket 1), as long as its light can effectively illuminate the interface area and clearly convey information to the user.

[0083] 4. Circuit Connection: The indicator light circuit is electrically connected to the charging management circuit to obtain charging status signals. Its power supply can be taken from the vehicle battery or provided by stepping down the input power of the charging interface.

[0084] This solution greatly improves the convenience and safety of outdoor charging, especially at night, by setting up indicator lights at the charging port, allowing users to intuitively and quickly understand the charging status. Example 7: Embedded Charging Interface Solution for Chassis Main Tube

[0085] To achieve ultimate integration, aesthetics, and protection, this invention provides a highly integrated implementation method. See also... Figure 2 The front charging interface (2) is directly integrated into the vehicle's frame main tube (5) in an embedded structure.

[0086] Specifically, an opening is made in the wall of the main frame tube (5). The body of the front charging interface (2) is inserted into and fixed in the internal cavity of the main frame tube (5) through this opening. The shape of the insulating shell of the charging interface (2) is adapted to the internal contour of the main frame tube (5) to ensure that it can be stably fixed after being inserted, and the insertion surface of the interface is flush with or slightly recessed with the outer surface of the main frame tube (5), thereby forming an extremely simple, beautiful and structurally protected charging interface.

[0087] 1. Insulation and Safety Encapsulation Design: The core of this invention—insulation and safety protection—has been meticulously designed: the charging interface body is wrapped and encapsulated by a high-strength insulating shell (such as engineering plastic or bakelite), making it completely insulated from the metal tube wall of the frame main tube (5). The connection point between the connecting cable and the charging interface body inside the frame main tube (5) is wrapped with a high-performance insulating sleeve, and preferably sealed and fixed by injecting insulating gel, fundamentally eliminating the risk of short circuit caused by the contact between the exposed contacts and the tube wall.

[0088] 2. Independent dustproof and waterproof cover design: An independent dustproof and waterproof cover is provided in front of the insertion surface of the front charging port (2). The cover is connected to the frame main tube (2) or mounting bracket by a pivot or hinge and can be freely flipped. The inner side of the cover is provided with an annular sealing gasket (such as a rubber or silicone gasket), which can form a tight seal with the periphery of the interface insertion surface when closed, effectively preventing the intrusion of rainwater and dust. The cover can be fixed in the closed position by elastic buckles or locks.

[0089] 3. Cable Fixing and Maintainability Design: To facilitate after-sales replacement, this invention features a dedicated cable fixing point on the insulating shell of the charging interface. This fixing point securely fastens the end sheath of the connecting cable to the charging interface module itself using cable clips, clamps, or cable ties, making them a single, detachable component. This design ensures that during maintenance, the entire interface module (including the interface body, insulating shell, and the fixed cable end) can be pulled out of the main frame tube as a whole, completely preventing the cable from slipping out and sliding deep into the main frame tube, thus greatly improving maintenance efficiency.

[0090] 4. Additional preferred features: A sealing ring can be added between the edge of the opening and the insulating shell to further improve the dustproof and waterproof rating. LED indicator lights can be added around the interface to facilitate operation in low-light environments.

[0091] This embodiment, through deep integration and multiple protection designs, demonstrates the high maturity of the invention in terms of structural innovation, safety, reliability, and ease of maintenance, making it a high-end and preferred solution. 1 Example 8: Installation scheme for the area above the basket

[0092] Based on Embodiment 1, the present invention provides a preferred solution with extremely high independence and stability. The installation position of the front charging port (2) is located in the space area above the front basket (1) of the vehicle.

[0093] The core advantage of this solution lies in:

[0094] 1. Extremely high structural independence and stability: This area is usually supported by the core structure of the frame, such as the front end of the main frame tube, the fork seat tube, or the robust headlight bracket. The charging port (2) is fixed here by a mounting bracket, so that it is completely decoupled from the basket (1) in physical structure. This means that: to avoid collateral damage, when the basket (1) is slightly bumped or deformed, the charging port (2) installed on it can be effectively protected from being affected and damaged due to its independent and protected position.

[0095] 2. Maintenance without interference: The operation of replacing, repairing or disassembling the basket (1) will not affect the stability and functional integrity of the charging interface (2) and its connecting cables, greatly improving the maintainability of the system.

[0096] 3. Excellent ease of use and visibility: Located at the visual center of the front of the vehicle, this area is the "golden area" most easily accessible to the user's eyes and arms. Users can easily plug and unplug devices without having to search for them while charging, providing an extremely convenient experience.

[0097] 4. Superior environmental adaptability: This position is usually higher than the basket (1), which can effectively avoid the splashing of mud and water when the wheels are running. At the same time, there are often components such as handlebars and headlights above it, which can provide a certain degree of natural rain and sun protection.

[0098] Detailed implementation: The mounting bracket can be fixedly connected to the front end of the frame main tube, the fork riser, or share a mounting point with the headlight mounting bracket. The front charging port (2) is mounted on the bracket, with its interface facing a direction convenient for user operation. The supporting structure is the basket (1) located below it. The two are adjacent vertically in space and cooperate with each other in function to form a convenient charging operation area.

[0099] This solution achieves the best balance between stability, independence, and user experience, making it a very sophisticated implementation method. Example 9: Dual-interface and multi-interface expansion schemes

[0100] It should be noted that the present invention can also be extended to a preferred embodiment with better convenience: the vehicle can be equipped with two charging ports simultaneously, namely the front charging port (2) described in the core of this application, and a rear charging port. In particular, when the vehicle adopts a split seat design with separate driver and rear seat cushions, this structure provides an ideal basis for the independent layout of the front and rear charging ports. Users can flexibly choose according to different usage scenarios (such as rear charging in a private garage or front charging in a public charging shed), thereby significantly improving applicability and convenience.

[0101] As a further optimization, the vehicle can also be equipped with multiple charging ports to adapt to more complex charging scenarios. The design of the charging port includes concealment, aesthetic enhancement, and intelligent interaction.

[0102] To further enhance the overall aesthetics of the vehicle, strengthen outdoor protection, and realize intelligent human-computer interaction, the front charging interface (2) described in this invention can be equipped with a hidden protective mechanism and can be further upgraded to an interactive system with intelligent sensing function.

[0103] 1. A concealed protective mechanism designed to shield the interface when not charging, and its specific implementation includes, but is not limited to:

[0104] Flip-top design: A protective cover is provided on the mounting bracket of the charging interface (2), the adjacent body panel, or the housing of the integrated unit, connected by a pivot or hinge. The protective cover can be flipped closed when not charging to completely cover the charging interface (2); it can be easily flipped open when charging. A sealing gasket may be provided on the inner side of the cover to form an effective dustproof and waterproof seal.

[0105] Sliding cover design: The protective mechanism is a cover that can slide along a specific track. Users can expose or cover the charging interface (2) by pushing it, making the operation both technological and fun.

[0106] The hatch design is integrated with the body styling: For high-end models, the charging port (2) can be set in a separate hatch that is flush with the body panel. The hatch can be opened by pressing or by electric means, achieving a sense of luxury and integration similar to the fuel filler cap of a car.

[0107] 2. Cover-mounted linkage indicator system (intelligent interactive upgrade): As a functional upgrade to the above-mentioned concealed protective mechanism, the openable cover can be combined with the indicator light to form a cover-mounted linkage intelligent indicator system. Its core mechanism is that the opening or closing action of the cover is configured to automatically trigger the connection or disconnection of the indicator light circuit.

[0108] Some options available:

[0109] Mechanical switch type: A micro switch is installed inside the rotating shaft of the cover plate or at the contact point with the interface housing. When the cover plate is opened to a specific angle, its physical structure presses down the trigger rod of the micro switch, thereby connecting the circuit of the indicator light and illuminating it. When the cover plate is closed, the trigger rod resets, the circuit is disconnected, and the indicator light goes out.

[0110] Magnetic induction type (Hall switch): A small magnet is embedded inside the cover, and a Hall sensor is placed at a corresponding position inside the charging interface body or mounting base. When the cover is opened and the magnet moves away from the Hall sensor, the sensor state changes, triggering the control circuit to illuminate the indicator light. When the cover is closed, the indicator light turns off.

[0111] Physical contact type: A simple spring contact switch is used. Conductive contacts are located on the inner side of the cover. When the cover is opened, the contacts separate from the corresponding contacts on the interface body, breaking the circuit; when the cover is closed, the contacts engage, connecting the circuit. This method can achieve the reverse logic of "the light illuminates when the cover is closed, serving as a position indicator," and is also within the scope of this invention.

[0112] Functions and effects: Automatic lighting: When the user opens the cover to prepare for charging, the indicator light will automatically turn on to provide illumination for the interface plug surface, without the need to manually turn on any switch.

[0113] Status indicator integration: This indicator light can reuse the multi-functional status indicators described in Example 6 (such as charging, fully charged, fault, etc.). That is, when the cover is opened, it first lights up with a white light for illumination, and after the charger is inserted, it switches to a blue breathing light (charging) or a solid green light (fully charged) depending on the status.

[0114] Energy saving and safety: After the cover is closed, the indicator light circuit is automatically cut off, achieving zero standby power consumption and avoiding light interference.

[0115] To further enhance the user experience, at least one additional expansion interface may be added to the supporting structure (such as the basket (1)) or near the installation area of ​​the front charging port (2). This expansion interface may be a power output interface conforming to general standards, such as, but not limited to, a USB Type-A interface, a USB Type-C interface, or other standard DC power output interfaces. The circuit of this interface is connected to the vehicle battery and obtains safe and stable low-voltage DC power through a step-down module (such as a DC-DC converter), so that the user can charge mobile devices such as mobile phones while charging the vehicle. Preferably, the USB Type-C interface supports bidirectional plugging and can support fast charging protocols such as USB Power Delivery.

[0116] Regarding the installation location of the charging interface: The installation location of the front charging interface (2) is located within a virtual cylindrical area. The virtual cylindrical space is defined as follows: a circle is drawn with the center point of the steering shaft as the center and the distance from the farthest point of the steering control component (such as the handlebars) to the center point of the rotation shaft as the radius; this circle is swept along the axial or vertical direction of the steering shaft to form the cylindrical space area. Summarize

[0117] In summary, this invention provides a highly competitive system solution specifically designed for outdoor charging scenarios of two-wheeled / three-wheeled vehicles. The specific embodiments described above are merely illustrative of the technical content of this invention; all equivalent substitutions or obvious modifications made based on the principles of this invention should be included within the scope of protection of this invention.

Claims

1. An electric two-wheeled vehicle and three-wheeled vehicle that are easy to charge outdoors, comprising a frame and a battery, characterized in that, The vehicle is equipped with a front-mounted charging port. The front of the vehicle is also provided with a support structure for supporting external charging equipment. The support structure is configured such that when an external charging device is placed on it, the connection cable of the external charging device can be easily connected to the front charging interface. The front charging port is configured to form an electrical connection with the battery.

2. The vehicle as described in claim 1, characterized in that, The supporting structure is a basket at the front of the vehicle; the spatial configuration between the front charging port and the basket is one of the following: Method A: The plug-in operation interface of the front charging port is located in the internal space of the basket or is exposed in the internal space through an opening in the basket wall panel. Method B: The front charging port is located on the front component of the vehicle outside the basket.

3. The vehicle as described in claim 2, characterized in that, The basket is equipped with an openable waterproof cover; And / or, the bottom or side wall of the basket is provided with a heat dissipation grille; And / or, the basket is provided with a locking mechanism for securing an external charger during charging.

4. The vehicle as described in claim 1, characterized in that, The support structure is provided with a holding mechanism; the holding mechanism is configured to selectively hold an external charger or mobile communication device.

5. The vehicle as described in claim 1, characterized in that, The connection cable from the battery to the front charging interface is at least partially laid inside the main frame tube or fixedly installed along the outer surface of the main frame tube.

6. The vehicle as described in claim 1, characterized in that, The support structure is provided with a suspension device; and / or, the external charger is provided with a suspension part that cooperates with the suspension device.

7. The vehicle as described in claim 1, characterized in that, The front charging interface, its mounting bracket, and the supporting structure together constitute an independently assembleable charging module assembly. The charging module assembly is mounted to the vehicle body via mechanical connectors and is electrically connected to the vehicle battery via a detachable electrical connection interface.

8. The vehicle as described in claim 1, characterized in that, An indicator light is provided at the front charging port; the indicator light is configured to perform one or a combination of the following functions: indicating the position of the charging port, providing illumination, or displaying the charging status.

9. An electric two-wheeled vehicle and three-wheeled vehicle that are easy to charge outdoors, comprising a frame and a battery, characterized in that, A charging unit is provided at the front of the vehicle, and the charging unit includes: An external power connection part for connecting to mains power; A charger module, the input end of which is electrically connected to the external power connection part and the output end of which is electrically connected to the battery; and a support structure for fixing the charger module. The charger module and the external power connection part are structurally integrated into one unit.

10. The vehicle as described in claim 9, characterized in that, The vehicle has a cable storage structure at the front to store the charging cable, one end of which is used to connect to the mains power.

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