Wireless charging device and electric vehicle

Abstract

The utility model discloses a wireless charging device and an electric vehicle, and the device comprises an installation box which is internally provided with an installation cavity; the voltage transformation module is fixedly mounted in the mounting cavity; and the wireless charging module is arranged in the mounting cavity, and the wireless charging module is electrically connected with the voltage transformation module. The wireless charging device is detachably connected to the vehicle body. According to the utility model, the problems of complex installation and poor adaptability of wireless charging of an existing electric vehicle are solved.

Description

Technical Field

[0001] This utility model relates to the field of wireless charging technology for electric vehicles, and in particular to a wireless charging device and an electric vehicle. Background Technology

[0002] With the accelerating pace of greening and intelligentization in urban transportation, two-wheeled electric vehicles have become an important tool for short-distance travel due to their convenience and environmental friendliness. In recent years, wireless charging technology has received widespread attention in the electric vehicle field due to its advantages of being plug-and-play-free and highly safe. However, existing wireless charging solutions for two-wheeled electric vehicles still face significant technical bottlenecks.

[0003] Currently, most mainstream wireless charging devices on the market adopt a split design, meaning the induction coil of the charging receiver is separate from the receiver box: the coil is integrated into the kickstand structure, while the receiver box needs to be built into the vehicle body. This design requires users to make structural modifications to the vehicle during installation (such as opening the car body and adjusting the circuit layout), which is not only complicated and time-consuming, but may also damage the vehicle's sealing and the safety of the original wiring. Furthermore, the non-integrated design of the receiver and kickstand means that when users change vehicles, they must also replace the kickstand and receiver device with ones compatible with the new vehicle model, resulting in poor versatility and high costs. Utility Model Content

[0004] The main purpose of this utility model is to provide a wireless charging device and an electric vehicle, which aims to solve the problems of complex installation and poor compatibility of existing wireless charging for electric vehicles.

[0005] To achieve the above objectives, this utility model proposes a wireless charging device, comprising:

[0006] Mounting box, wherein the mounting box is provided with a mounting cavity;

[0007] The transformer module is fixedly installed in the mounting cavity;

[0008] A wireless charging module is disposed in the mounting cavity, and the wireless charging module is electrically connected to the transformer module.

[0009] Optionally, the wireless charging module includes a winding device and a wireless charging receiver box. The winding device includes a rotating wheel and an elastic cable. One end of the elastic cable is wound around the rotating wheel, and the other end is connected to the wireless charging receiver box. The winding device is used to drive the wireless charging receiver box to automatically wind back into the mounting cavity or extend to the outside of the mounting box.

[0010] Optionally, the wireless charging receiver box is provided with a charging coil and a magnetic attractor. The magnetic attractor is arranged along the circumference of the wireless charging receiver box and is used for magnetic alignment with an external wireless charging transmitter.

[0011] Optionally, the magnetic attractor is a ring magnet.

[0012] Optionally, limiting portions are provided on both sides of the front end of the mounting cavity, and the limiting portions are used to restrict the position of the wireless charging receiver box.

[0013] Optionally, one side of the mounting box is provided with several heat dissipation holes.

[0014] Optionally, the wireless charging device further includes a plug, one end of which is electrically connected to the transformer module and the other end of which is electrically connected to an external power source.

[0015] To achieve the above objectives, this utility model also proposes an electric vehicle, including any of the wireless charging devices described above, wherein the wireless charging device is detachably connected to the vehicle body.

[0016] The beneficial effects of this utility model are as follows: It solves the problems of complex installation and poor compatibility of existing wireless charging for electric vehicles. The wireless charging module and the transformer module are integrated into the mounting box, which is detachable. With the extension and retraction adjustment function of the flexible cable, wireless charging can be achieved by connecting to an external power source via a plug without structural modifications to the vehicle, simplifying the charging process and improving installation convenience. Secondly, the use of a transformer module can meet the charging needs of different vehicles, making the device compatible with different vehicle models and enhancing its practicality. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a wireless charging device according to the present invention;

[0019] Figure 2 This is an exploded view of a wireless charging device according to the present invention;

[0020] Figure 3 This is a schematic diagram of the wireless charging module in this utility model;

[0021] Figure 4 This is an exploded view of the wireless charging receiver box of this utility model;

[0022] Label Explanation:

[0023] 1. Mounting box; 11. Mounting cavity; 12. Heat dissipation holes;

[0024] 2. Transformer module;

[0025] 3. Wireless charging module; 31. Rewinding device; 321. Charging coil; 322. Magnetic attachment; 33. Flexible cable; 32. Wireless charging receiver box;

[0026] 4. Plug;

[0027] 5. Limiting part;

[0028] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0031] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0032] One embodiment of this utility model provides a wireless charging device, see reference... Figure 1 , Figure 2 ,include:

[0033] Mounting box 1, wherein mounting box 1 is provided with mounting cavity 11;

[0034] Transformer module 2 is fixedly installed in the mounting cavity 11;

[0035] The wireless charging module 3 is disposed in the mounting cavity 11 and is electrically connected to the transformer module 2.

[0036] This invention solves the problems of complex installation and poor compatibility of existing wireless charging for electric vehicles. The wireless charging module 3 and the transformer module 2 are integrated into the mounting box 1. The detachable mounting box 1, combined with the telescopic adjustment function of the elastic cable 33, allows for wireless charging via plug 4 without structural modifications to the vehicle, simplifying the charging process and improving installation convenience. Secondly, the transformer module 2 meets the charging needs of different vehicles, enabling the device to be adapted to different car models, enhancing its practicality. In this embodiment, the mounting box 1 is detachably connected to the electric vehicle with screws, allowing users to complete the installation without drilling holes or disassembling existing parts, simplifying the installation process. The transformer module 2 is fixedly installed inside the mounting box 1, with its input end connected to the external power source via plug 4. The transformer module 2 has a built-in voltage conversion circuit that automatically adjusts the output voltage according to the battery specifications of different car models, ensuring charging safety and compatibility. By incorporating transformer module 2, this wireless charging device can be adapted to various electric vehicles with different battery specifications, eliminating the need for users to replace their wireless charging equipment when changing electric vehicles, thus reducing user costs and enhancing the device's practicality. Transformer module 2 is a conventional device, well-known to those skilled in the art as a device capable of changing AC voltage, and will not be described in detail here.

[0037] Furthermore, the wireless charging module 3 includes a winding device 31 and a wireless charging receiver box 32. The winding device 31 includes a rotating wheel and an elastic cable 33. One end of the elastic cable 33 is wound around the rotating wheel, and the other end is connected to the wireless charging receiver box 32. The winding device 31 is used to drive the wireless charging receiver box 32 to automatically wind back into the mounting cavity 11 or extend to the outside of the mounting box 1. In this embodiment, the winding device 31 includes a housing, an elastic cable 33, and a rotating wheel (not labeled in the figure). The housing has an output end, and the rotating wheel is cylindrical with the elastic cable 33 wound around its center. One end of the elastic cable 33 is tightly wound around the rotating wheel, and the other end passes through the output end of the housing and is fixedly connected to the wireless charging receiver box 32. When the user pulls out the wireless charging receiver box 32, the elastic cable 33 extends, the rotating wheel rotates counterclockwise and stores energy. When charging is complete, the receiver box is released, and the rotating wheel rotates clockwise to automatically wind the elastic cable 33 back into the housing, achieving quick storage of the wireless charging receiver box 32 and avoiding wear or tangling problems caused by the exposed elastic cable 33. Furthermore, the elastic cable 33 consists of a multi-strand stranded conductive copper core and an insulating outer layer wrapping the conductive copper core.

[0038] Furthermore, referring to Figure 4 The wireless charging receiver box 32 is equipped with a charging coil 321 and a magnetic chuck 322. The magnetic chuck 322 is arranged circumferentially around the wireless charging receiver box 32 and is used for magnetic alignment with an external wireless charging transmitter. In this embodiment, the wireless charging box has a circular structure, with the charging coil 321 and magnetic chuck 322 inside. The magnetic chuck 322 is a ring magnet, arranged circumferentially around the wireless charging receiver box 32 and fixed to the inside of the wireless charging receiver box 32. The magnetic chuck 322 allows the wireless charging receiver box 32 to automatically align with the magnetic poles of the transmitter when it is near the external wireless charging transmitter, ensuring alignment between the charging coil 321 and the transmitter coil. Furthermore, the outer shell of the wireless charging receiver box 32 is made of high-strength plastic and covered with a waterproof silicone coating, which effectively prevents rainwater or dust from entering and extends the service life of the wireless charging receiver box 32. Specifically, the wireless charging receiver box 32 may also have an annular groove inside to fix the position of the charging coil 321, thereby ensuring that the internal components of the housing will not shift or fall off due to vibration during vehicle operation. The magnetic components 322 can also be segmented, with multiple magnetic components 322 evenly embedded in the inner wall of the wireless charging receiver box 32. This allows for flexible adjustment of the number and distribution of the magnetic components 322 according to the size and shape of the receiver box. It should be noted that the shape of the wireless charging receiver box 32 can also be rectangular, triangular, or trapezoidal, etc., without further limitation.

[0039] Furthermore, limiting portions 5 are provided on both sides of the front end of the mounting cavity 11, which are used to restrict the position of the wireless charging receiver box 32. In this embodiment, the limiting portion 5 is an inwardly protruding arc-shaped baffle, the curvature of which matches the outer contour of the wireless charging receiver box 32, ensuring that the wireless charging receiver box 32 can be tightly embedded between the limiting portions 5 when stored in the mounting box 1, avoiding shaking or displacement due to vehicle vibration. In other embodiments, the limiting portion 5 may also be provided with a fixing structure to lock the position of the wireless charging receiver box 32 when stored in the mounting box 1. The fixing structure may be a snap-fit ​​structure. In another embodiment, the limiting portion 5 may adopt a damping design, which can provide resistance when the wireless charging receiver box 32 slides out or retracts, preventing the ineffective charging receiver box from sliding out or retracting quickly due to inertia, improving the safety and comfort of use.

[0040] Furthermore, referring to Figure 1 , Figure 2 The mounting box 1 has a plurality of heat dissipation holes 12 on one side. Specifically, the heat dissipation holes 12 are evenly distributed in an array on one side of the mounting box 1 to promote heat dissipation of the internal components of the mounting box 1, avoid local overheating, and ensure the stability and reliability of the wireless charging device during long-term operation. The edges of the heat dissipation holes 12 are chamfered to avoid inconvenience during installation or use due to sharp edges. In another embodiment, a dustproof mesh is installed inside the heat dissipation holes 12 to prevent dust and foreign objects from entering the interior of the mounting box 1.

[0041] Furthermore, the wireless charging device also includes a plug 4, one end of which is electrically connected to the transformer module 2, and the other end is electrically connected to an external power source. In this embodiment, the plug 4 is used to transmit electrical energy. Through the plug 4, the transformer module 2 can receive power from the external power source and convert the electrical energy into a wireless signal to charge the electric vehicle. One end of the plug 4 is electrically connected to the transformer module 2. When the plug 4 is connected to the external power source, electrical energy can be transmitted to the transformer module 2 along the connection line. The other end of the plug 4 is electrically connected to the external power source, and the voltage is regulated by the transformer module 2 to achieve stable power transmission. In this embodiment, the plug 4 is a triangular plug 4. Triangular plugs 4 generally have good mechanical fixation and can be firmly connected to the electric vehicle's socket. This structure helps prevent loosening of the connection due to vibration or impact. Due to the symmetry of the triangular structure, users can more easily and correctly install the plug 4 without worrying about orientation issues, which reduces errors during installation.

[0042] Furthermore, the mounting box 1 may also be equipped with an LED status light to indicate to the user whether the device is currently charging and whether charging is complete. The LED status light allows the user to clearly see the current charging status of the electric vehicle, making it easy for them to monitor. In another embodiment, the LED status light can also be located at the wireless charging transmitter.

[0043] This utility model also provides an electric vehicle, including the aforementioned wireless charging device, which is detachably connected to the vehicle body. Specifically, the electric vehicle has a pre-set mounting interface or bracket, and the wireless charging device is securely installed near an external power source on the vehicle body, facilitating direct electrical connection of the plug 4 to an external power source for wireless charging. In this embodiment, the mounting box 1 of the wireless charging device is provided with standardized fixing holes that match the corresponding mounting interfaces on the electric vehicle body. A tight connection is achieved between the device and the mounting interface using bolts. This detachable installation method allows users to easily move the wireless charging device when changing electric vehicles and also allows users to choose the optimal installation location based on the actual vehicle conditions to ensure the efficiency and stability of wireless charging. It should be noted that the mounting box 1 can also be detachably connected via snap-fit ​​connections, plug-in connections, or other similar methods, which are not limited here.

[0044] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A wireless charging device, characterized in that, include: Mounting box, wherein the mounting box is provided with a mounting cavity; The transformer module is fixedly installed in the mounting cavity; A wireless charging module is disposed in the mounting cavity, and the wireless charging module is electrically connected to the transformer module. The wireless charging module and the transformer module are integrated into the mounting box, which is detachably installed. The wireless charging module includes a winding device and a wireless charging receiver box. The winding device includes a rotating wheel and an elastic cable. One end of the elastic cable is wound around the rotating wheel, and the other end is connected to the wireless charging receiver box. The winding device is used to drive the wireless charging receiver box to automatically wind back into the mounting cavity or extend to the outside of the mounting box.

2. The wireless charging device according to claim 1, characterized in that, The wireless charging receiver box is equipped with a charging coil and a magnetic connector. The magnetic connector is arranged around the circumference of the wireless charging receiver box and is used for magnetic alignment with an external wireless charging transmitter.

3. The wireless charging device according to claim 2, characterized in that, The magnetic attractor is a ring magnet.

4. The wireless charging device according to claim 1, characterized in that, Limiting portions are provided on both sides of the front end of the mounting cavity, and the limiting portions are used to restrict the position of the wireless charging receiver box.

5. The wireless charging device according to claim 1, characterized in that, The mounting box has several heat dissipation holes on one side.

6. The wireless charging device according to claim 1, characterized in that, The wireless charging device also includes a plug, one end of which is electrically connected to the transformer module and the other end is electrically connected to an external power source.

7. An electric vehicle, characterized in that, Includes the wireless charging device as described in any one of claims 1-6, wherein the wireless charging device is detachably connected to the vehicle body.

Images