Undercarriage charging device and vehicle

Abstract

The utility model discloses a kind of vehicle bottom charging devices and vehicles, the vehicle bottom charging device includes: connecting socket, the connecting socket is suitable for being fixed to vehicle body;Charging assembly, the charging assembly includes connecting plug, lifting structure and moving structure, the lifting structure is slidably installed in the moving structure, the connecting plug is liftablely installed in the lifting structure, and the connecting plug is used for with the connecting socket plug-in cooperation cooperation.The vehicle bottom charging device of the utility model, battery charging is carried out by connecting socket and connecting plug plug-in cooperation cooperation, and connecting plug and connecting socket can be automatically aligned, plug-in cooperation cooperation efficiency is high, degree of automation operation is high, reduces manual operation, to reduce the risk of electric shock, improve vehicle use safety, and improve operation efficiency and charging efficiency.

Description

Technical Field

[0001] This utility model relates to the field of vehicle charging technology, and in particular to a vehicle under-car charging device and a vehicle having the vehicle under-car charging device. Background Technology

[0002] Currently, there are two common solutions for charging batteries in new energy vehicles. The first solution is to use a DC / AC charging gun from a charging station to charge the battery through a slow or fast charging port. This charging technology is relatively common in the market, but it requires manual handling of the charging gun, which is complex and cumbersome. The charging cable is long and heavy, which is not conducive to user operation, and there is also a certain risk of electric shock in special circumstances. The second solution is to use wireless charging technology under the vehicle. This charging technology is relatively rare in the market. It requires the addition of an electromagnetic conversion device and a coil device under the vehicle, resulting in higher overall costs. Furthermore, due to the use of electromagnetic induction, the charging efficiency decreases and the heat dissipation increases, leaving room for improvement. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a vehicle under-body charging device, which has a simple structure and low cost. It charges the battery by connecting a socket and a plug, and the plug and socket automatically align, resulting in high efficiency and high degree of automation. This reduces manual operation, thereby reducing the risk of electric shock, improving vehicle safety, and increasing both operating and charging efficiency.

[0004] According to an embodiment of the present utility model, a vehicle under-body charging device includes: a connecting socket adapted to be fixed relative to the vehicle body; and a charging component including a connecting plug, a lifting structure, and a moving structure, wherein the lifting structure is slidably mounted on the moving structure, the connecting plug is liftably mounted on the lifting structure, and the connecting plug is used to plug into the connecting socket.

[0005] According to the vehicle undercarriage charging device of this utility model embodiment, the battery can be charged by connecting a connector socket to the undercarriage and engaging with the connector plug of the charging device. Furthermore, by connecting a lifting structure to the connector plug, automatic engagement of the connector plug and connector socket is achieved, resulting in a high degree of automation, reducing the risk of electric shock and improving vehicle safety. Additionally, the lifting structure is slidably connected to a movable structure, allowing movement of the lifting structure and its connected connector plug. This enables automatic alignment of the connector plug and connector socket, resulting in high engagement efficiency, reducing manual operation, and offering higher charging efficiency compared to wireless charging. This improves the accuracy and efficiency of the charging operation. Moreover, the overall structure is simple, lower in cost, and more practical.

[0006] According to some embodiments of the present invention, the undercarriage charging device includes a lifting structure comprising a lifting base and a lifting drive body. The lifting base is slidably mounted on the movable structure, the connecting plug is mounted above the lifting base, and the lifting drive body is used to drive the connecting plug to rise and fall relative to the lifting base.

[0007] According to some embodiments of the present invention, the undercarriage charging device includes a lifting drive body comprising a drive component and a transmission rack. The output end of the drive component is provided with a drive gear. The transmission rack is movably mounted on the lifting base, and the connecting plug is fixed relative to the transmission rack. The drive gear meshes with the transmission rack and is adapted to drive the transmission rack to move the connecting plug up and down.

[0008] According to some embodiments of the present utility model, the undercarriage charging device has a guide groove formed on the lifting base, the transmission rack is movably mounted on the guide groove, and a dovetail fit structure is formed between the transmission rack and the guide groove.

[0009] And / or, the drive unit and the transmission rack are multiple and correspond to each other, and the multiple transmission racks are distributed around the connector plug.

[0010] According to some embodiments of the present invention, in the undercarriage charging device, the connecting plug is connected to the lifting base via a retractable wire guide ring, and the wire guide ring has a wire hole.

[0011] According to some embodiments of the present invention, the undercarriage charging device includes a first moving member and a second moving member. The lifting structure is slidably mounted on the first moving member along a first direction, and the first moving member is slidably mounted on the second moving member along a second direction, wherein the first direction and the second direction intersect.

[0012] The first moving part is provided with a first threading hole, and the second moving part is provided with a second threading hole.

[0013] According to some embodiments of the vehicle under-car charging device of the present utility model, the connecting socket is provided with a first plug-in portion, and the connecting plug is provided with a second plug-in portion;

[0014] The connection socket has a guide portion arranged around the first plug portion, and the second plug portion is adapted to be guided along the guide portion to be plugged into and connected with the first plug portion.

[0015] According to some embodiments of the present invention, the undercarriage charging device has a first plug-in portion configured as a plug-in interface, a guide portion configured as a tapered guide surface, and the inner diameter of the tapered guide surface is configured to gradually decrease along the direction close to the first plug-in portion.

[0016] According to some embodiments of the present invention, the undercarriage charging device is provided with a rolling element, which is located at the end of the second plug-in portion near the first plug-in portion, and the second plug-in portion is adapted to roll against the tapered guide surface by the rolling element.

[0017] The rolling elements are multiple, and the multiple rolling elements are distributed circumferentially along the second insertion portion, and respectively roll against the conical guide surface.

[0018] This utility model also proposes a vehicle.

[0019] The vehicle according to the present invention includes the undercarriage charging device of any of the above embodiments.

[0020] The vehicle and the aforementioned undercarriage charging device have the same advantages over the prior art, which will not be repeated here.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a cross-sectional view of the under-vehicle charging device according to an embodiment of the present utility model;

[0024] Figure 2 This is a front view of the charging assembly of the undercarriage charging device according to an embodiment of the present utility model;

[0025] Figure 3 This is a side view of the charging assembly of the under-vehicle charging device according to an embodiment of the present utility model;

[0026] Figure 4 This is a top view of the charging assembly of the under-vehicle charging device according to an embodiment of the present utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the charging component of the under-vehicle charging device according to an embodiment of the present utility model;

[0028] Figure 6 yes Figure 5 A magnified view of a section at point A in the middle;

[0029] Figure 7 This is a cross-sectional view of the lifting base and movable structure of the under-vehicle charging device according to an embodiment of the present utility model.

[0030] Figure label:

[0031] Under-vehicle charging device 100,

[0032] Connecting socket 1, first insertion part 11, guide part 12

[0033] Charging component 2, connector plug 21, second plug part 211, rolling element 212, lifting structure 22, lifting base 221, guide groove 2211, dovetail fit structure 2212, dovetail tooth 2213, base wire hole 2214, first fixing groove 2214, lifting drive body 222, drive component 223, motor shaft 2231, transmission rack 224, dovetail groove 2241, drive gear 225, moving structure 23, first moving component 231, first wire hole 2311, first groove 2312, second fixing groove 2313, through hole 2314, second moving component 232, second wire hole 2321, second groove 2322, wire guide rubber ring 24, rubber ring wire hole 241, first pulley 25, second pulley 26. Detailed Implementation

[0034] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0035] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] Unless otherwise specified, the front-back direction in this application refers to the longitudinal direction of the vehicle, i.e., the X direction; the left-right direction refers to the lateral direction of the vehicle, i.e., the Y direction; and the up-down direction refers to the vertical direction of the vehicle, i.e., the Z direction.

[0038] The following is for reference. Figures 1-7 The vehicle under-car charging device 100 according to an embodiment of the present utility model has a simple structure and low cost. It charges the battery by connecting the connector 1 and the connector 21. The connector 21 and the connector 1 are automatically aligned, which makes the connection efficiency high and the degree of automation high. It reduces manual operation, thereby reducing the risk of electric shock, improving vehicle safety, and improving operation efficiency and charging efficiency.

[0039] like Figures 1-7 As shown, a vehicle undercarriage charging device 100 according to an embodiment of the present invention includes: a connection socket 1 and a charging component 2.

[0040] The connection socket 1 is suitable for being fixed relative to the vehicle body. The charging component 2 includes a connection plug 21, a lifting structure 22 and a moving structure 23. The lifting structure 22 is slidably mounted on the moving structure 23, and the connection plug 21 is lifted and lowered on the lifting structure 22. The connection plug 21 is used to plug into the connection socket 1.

[0041] It should be noted that with the increasing use of new energy vehicles, these vehicles need to be charged when their battery is low. Vehicles can be charged at charging stations using a DC or AC charging gun inserted into the charging port, or wirelessly charged from under the vehicle. In this embodiment, the under-vehicle charging device 100 can automatically charge the vehicle to replenish its battery.

[0042] Specifically, the under-vehicle charging device 100 is located at the bottom of the vehicle. The under-vehicle charging device 100 includes a connection socket 1, which can be fixed relative to the vehicle body. For example, the connection socket 1 can be directly installed near the chassis of the vehicle's trunk. The connection socket 1 is used for electrical connection to the charging terminal, enabling charging of the vehicle at the chassis of the trunk. Furthermore, placing the connection socket 1 near the chassis of the trunk enhances the safety of whole-vehicle charging and reduces the risk of direct safety hazards to the passenger compartment. The connection socket 1 can also be installed in other locations on the vehicle, allowing for selective installation based on the actual space layout.

[0043] The connection socket 1 can be detachably connected to the bottom of the vehicle using fasteners such as bolts, or the connection socket 1 can be connected and fixed to the bottom of the vehicle using methods such as plugging or snapping, as long as the installation reliability of the connection socket 1 can be guaranteed.

[0044] Furthermore, the under-vehicle charging device 100 also includes a charging component 2, which is used to electrically connect with the connection socket 1. The charging component 2 includes a connection plug 21, which is plugged into the connection socket 1 and can be electrically connected to a charging pile to charge the vehicle.

[0045] The charging component 2 also includes a lifting structure 22 and a moving structure 23. The lifting structure 22 has a lifting function, and the moving structure 23 has a moving function. The lifting structure 22 and the moving structure 23 are slidably connected, so that the lifting structure 22 can slide through the moving structure 23. The lifting structure 22 is located on the upper side of the moving structure 23, and the connecting plug 21 is slidably installed on the lifting structure 22. That is, the connecting plug 21 is connected to the lifting structure 22, and the lifting structure 22 can drive the connecting plug 21 to move up and down. The connecting plug 21 is used to plug into the connecting socket 1, and the electrical connection between the connecting plug 21 and the connecting socket 1 is realized through plugging.

[0046] The movable structure 23 can be configured to move in one direction, that is, to drive the lifting structure 22 to move in one direction. The movable structure 23 can also be configured to move in two directions, that is, to drive the lifting structure 22 to move in two different directions. The configuration is not limited and can be flexibly selected.

[0047] In actual use, when the vehicle's battery is low, the vehicle is parked at the charging equipment. The moving structure 23 drives the lifting structure 22 to move, and the lifting structure 22 drives the connecting plug 21 to move upward and connect with the connecting socket 1 at the bottom of the vehicle to charge the battery inside the vehicle. When charging is complete, the lifting structure 22 drives the connecting plug 21 to move downward and disengage from the connecting socket 1 to end the charging of the vehicle.

[0048] Currently, there are two common solutions for charging batteries in new energy vehicles. The first solution is to use a DC / AC charging gun from a charging station to charge the battery through a slow or fast charging port. This charging technology is relatively common in the market, but it requires manual handling of the charging gun, which is complex and cumbersome. The charging cable is long and heavy, which is not conducive to user operation. In particular, there is also a certain risk of electric shock. The second solution is to use wireless charging technology under the vehicle. This charging technology is relatively rare in the market. It requires the addition of an electromagnetic conversion device and a coil device under the vehicle, resulting in higher overall costs. Furthermore, due to the use of electromagnetic induction, the charging efficiency decreases and the heat dissipation increases.

[0049] According to the embodiment of the present invention, the undercarriage charging device 100 can charge the battery by connecting the connecting socket 1 and the connecting plug 21 of the charging device to the undercarriage. By connecting the lifting structure 22 to the connecting plug 21, the connecting plug 21 and the connecting socket 1 can be automatically connected, resulting in a high degree of automation, reducing the risk of electric shock and improving vehicle safety. Furthermore, the lifting structure 22 is slidably connected to the moving structure 23, enabling the movement of the lifting structure 22 and the connected plug 21. This allows for automatic alignment of the connecting plug 21 and the connecting socket 1, resulting in high connection efficiency, reducing manual operation, and higher charging efficiency compared to wireless charging. It can also reduce heat dissipation, improve the accuracy and efficiency of charging operations, and has a simple overall structure, lower cost, and greater practicality.

[0050] In some embodiments, the lifting structure 22 includes a lifting base 221 and a lifting drive 222. The lifting base 221 is slidably mounted on the movable structure 23, the connector 21 is mounted above the lifting base 221, and the lifting drive 222 is used to drive the connector 21 to rise and fall relative to the lifting base 221.

[0051] Specifically, such as Figures 1-3 and Figure 5As shown, the lifting base 221 is the support and installation part of the lifting structure 22. The lifting drive body 222 has a lifting function. The lifting base 221 is used to install the lifting drive body 222. The lifting drive body 222 can be detachably connected to the lifting base 221, which can realize the connection and fixation of the fixed end of the lifting drive body 222. The lifting base 221 is slidably connected to the moving structure 23, meaning that the lifting base 221 and the lifting drive body 222 can slide simultaneously relative to the moving structure 23. The connecting plug 21 is located above the lifting base 221, that is, the connecting plug 21 is arranged close to the connecting socket 1, which can improve the insertion and engagement efficiency of the connecting plug 21 and the connecting socket 1. At the same time, the lifting base 221 is located at the bottom of the connecting plug 21, so that the lifting base 221 is close to the moving structure 23, which is conducive to the sliding connection between the lifting base 221 and the moving structure 23. The movable end of the lifting drive body 222 can be connected to the connecting plug 21. In this way, the lifting drive body 222 can drive the connecting plug 21 to rise and fall, and the moving structure 23 can drive the lifting drive body 222 and the connecting plug 21 to slide.

[0052] Therefore, through the above settings, the moving structure 23 can adjust the position of the lifting base 221, and then adjust the position of the lifting drive body 222 and the connecting plug 21 relative to the connecting socket 1, so that the connecting plug 21 can be quickly plugged into the connecting socket 1 to improve the overall operating efficiency. Moreover, the whole process is automatically aligned, without the need for manpower, and saves charging time.

[0053] The lifting base 221 can be slidably connected to the moving structure 23 via a slide rail or other means, and the connector 21 can be detachably connected to the lifting drive body 222 via bolts or other fasteners, ensuring the reliability of the connector 21 connection.

[0054] In some embodiments, the lifting drive body 222 includes a drive member 223 and a transmission rack 224. The output end of the drive member 223 is provided with a drive gear 225. The transmission rack 224 is vertically mounted on the lifting base 221, and the connector 21 is fixed relative to the transmission rack 224. The drive gear 225 meshes with the transmission rack 224 and is adapted to drive the transmission rack 224 to drive the connector 21 to rise and fall.

[0055] Specifically, the driving component 223 is the power source for the lifting drive body 222, and can drive the transmission rack 224 to move. The output end of the driving component 223 is equipped with a drive gear 225. If the drive gear 225 is detachably connected to the output end of the driving component 223, the driving component 223 transmits power to the drive gear 225, which can drive the drive gear 225 to rotate. The driving component 223 can be constructed as a drive motor, such as... Figure 4 As shown, the drive motor has a motor shaft 2231, which is used to connect the drive gear 225.

[0056] The drive unit 223 can be fixedly connected to the lifting base 221, that is, the drive unit 223 is the fixed end and the transmission rack 224 is the movable end. The transmission rack 224 can be installed vertically on the lifting base 221, that is, the transmission rack 224 can be raised and lowered relative to the lifting base 221. The transmission rack 224 meshes with the drive gear 225. In this way, when the drive unit 223 is working, it can drive the drive gear 225 to rotate to drive the transmission rack 224 to rise and fall. The connector 21 is connected to the transmission rack 224. For example, the connector 21 can be detachably connected to one end of the transmission rack 224 by bolts or other fasteners. In this way, the connector 21 and the transmission rack 224 can be connected as one unit, and the transmission rack 224 can drive the connector 21 to rise and fall.

[0057] Furthermore, the drive unit 223 can have a bidirectional rotation function to realize the raising and lowering of the transmission rack 224, thereby achieving height adjustment of the connector 21. The lifting drive unit 222 can also be constructed as a lifting cylinder or similar structure, as long as it can meet the lifting and lowering requirements of the connector 21.

[0058] Therefore, through the above configuration, the driving component 223 can drive the driving gear 225 to rotate, thereby driving the transmission rack 224 to move the connector 21 closer to the connector socket 1, thus achieving the insertion and engagement of the connector 21 and the connector socket 1. Conversely, the driving gear 225 can be driven to rotate in the opposite direction, thereby driving the transmission rack 224 to move the connector 21 away from the connector socket 1, thus achieving the separation of the connector 21 from the connector socket 1. The entire drive structure is simple, low-cost, and provides good driving performance.

[0059] In some embodiments, the lifting base 221 has a guide groove 2211, the transmission rack 224 is movably mounted in the guide groove 2211, and a dovetail fit structure 2212 is formed between the transmission rack 224 and the guide groove 2211.

[0060] Specifically, the guide groove 2211 has a guiding function. The transmission rack 224 is installed in the guide groove 2211, which allows the transmission rack 224 to move up and down within the guide groove 2211 and along the length of the guide groove 2211. A dovetail fit structure 2212 is formed between the transmission rack 224 and the guide groove 2211. The dovetail fit structure 2212 can ensure the reliable installation of the transmission rack 224 and prevent the transmission rack 224 from disengaging from the guide groove 2211.

[0061] In actual design, a dovetail groove 2241 can be set in one of the transmission rack 224 and the guide slide 2211, and a dovetail tooth 2213 can be set in the other. Through the insertion and cooperation of the dovetail groove 2241 and the dovetail tooth 2213, the reliable installation of the transmission rack 224 and the guide slide 2211 can be achieved. There are various ways to set them, and they can be flexibly selected.

[0062] For example, such as Figure 5 and Figure 6 As shown, the guide groove 2211 can be configured to extend in the vertical direction and penetrate through both ends of the lifting base 221, which facilitates the processing of the guide groove 2211 and improves processing efficiency. The guide groove 2211 can be constructed as a square groove, with one end open to avoid the transmission rack 224. A dovetail tooth 2213 is provided on each of the two sides of the guide groove 2211, and the two dovetail teeth 2213 can be distributed facing each other. A dovetail groove 2241 is provided on each of the two sides of the transmission rack 224. The dovetail grooves 2241 on both sides of the transmission rack 224 correspond one-to-one with the two dovetail teeth 2213 in the guide groove 2211. The dovetail groove 2241 can be constructed as a dovetail-shaped groove, and the dovetail tooth 2213 is constructed as a dovetail-shaped protrusion. That is, the groove and the protrusion are trapezoidal structures, and their sizes are matched to facilitate insertion and installation. The dovetail groove 2241 is located away from the tooth section of the drive rack 224 to maintain the integrity of the tooth section.

[0063] Therefore, by setting a dovetail fit structure 2212 between the guide groove 2211 and the transmission rack 224, the transmission rack 224 and the guide groove 2211 can be engaged by their inclined surfaces, which can effectively prevent the transmission rack 224 from dislodging from the guide groove 2211. This prevents the transmission rack 224 from not moving horizontally during the lifting process, thus ensuring the reliability of the installation and movement of the transmission rack 224. Moreover, the structure is simple and the function is easy to implement.

[0064] In other embodiments, there are multiple drive members 223 and transmission racks 224 that are matched one-to-one, with the multiple transmission racks 224 distributed around the connector 21.

[0065] Specifically, the driving element 223 and the transmission rack 224 can each be configured as two, three, four, etc., with multiple driving elements 223 and multiple transmission racks 224 corresponding to each other, thus forming multiple sets of lifting driving bodies 222. The multiple transmission racks 224 are distributed around the circumference of the connecting plug 21. For example, the multiple transmission racks 224 can be spaced apart and distributed around the circumference of the connecting plug 21, and the spacing between adjacent transmission racks 224 can be the same or different. In this way, one end of each of the multiple transmission racks 224 can be connected to the connecting plug 21, so that multiple driving elements 223 can drive multiple transmission racks 224 to move together, thereby jointly driving the connecting plug 21 to lift and lower. This improves the reliability and stability of the connecting plug 21 during the lifting and lowering process, and helps to improve the reliability of the connection between the connecting plug 21 and the connecting socket 1, thereby improving the reliability and safety of charging.

[0066] In this embodiment, as Figure 1 , Figure 2 , Figure 4 and Figure 7 As shown, there are two drive components 223 and two transmission racks 224. The two drive components 223 and the two transmission racks 224 are matched one-to-one. The two drive components 223 and the two transmission racks 224 are symmetrically arranged on the outer periphery of the connector 21, so that the force between the two transmission racks 224 and the connector 21 is more balanced and the movement is more reliable.

[0067] In some embodiments, the connector 21 is connected to the lifting base 221 via a retractable wire guide ring 24, and the wire guide ring 24 has a wire hole 241.

[0068] Specifically, such as Figure 5 As shown, the connector 21 can be connected to the lifting base 221, and the two can be connected by a retractable wire guide ring 24. The wire guide ring 24 is connected between the connector 21 and the lifting base 221, and the wire guide ring 24 is retractable. Thus, when the transmission rack 224 drives the connector 21 to move away from the lifting base 221, the wire guide ring 24 gradually extends. When the transmission rack 224 drives the connector 21 to move closer to the lifting base 221, the wire guide ring 24 gradually contracts. The wire guide ring 24 is provided with a wire hole 241 for threading the wire harness of the connector 21, so as to enclose the wire harness inside the wire guide ring 24.

[0069] The cable guide ring 24 can be supported by materials such as rubber, or even corrugated tubing. Both ends of the cable guide ring 24 can be connected to the connector 21 and the lifting base 221 respectively via adhesive bonding, or it can be integrally formed with the lifting base 221.

[0070] Therefore, by setting a wire guide ring 24 between the connector plug 21 and the lifting base 221, the wire harness of the connector plug 21 can be installed in the wire guide ring 24 to effectively protect the wire harness. This can prevent the wire harness from being exposed to the outside world and causing wear and tear on the external structure, reduce damage to the wire harness, extend the service life of the connector plug 21, and keep the overall structure of the undercarriage charging device 100 neat and orderly, and facilitate the movement and transportation of the undercarriage charging device 100.

[0071] In some embodiments, the movable structure 23 includes a first movable member 231 and a second movable member 232. The lifting structure 22 is slidably mounted on the first movable member 231 along a first direction, and the first movable member 231 is slidably mounted on the second movable member 232 along a second direction. The first direction and the second direction intersect.

[0072] Specifically, both the first moving member 231 and the second moving member 232 have a moving function. The lifting structure 22 is slidably mounted on the first moving member 231, meaning the lifting structure 22 can slide relative to the first moving member 231 and can slide relative to the first moving member 231 along a first direction. The first moving member 231 is slidably mounted on the second moving member 232, meaning the first moving member 231 can slide relative to the second moving member 232 and can slide relative to the second moving member 232 along a second direction. The first and second directions intersect, meaning the first and second directions can be distributed at any non-parallel angle, or the first and second directions can be perpendicular. When the first and second directions are perpendicular, the first direction can be the Y direction, the second direction can be the X direction, and the lifting direction is the Z direction. These three directions are as follows: Figure 5 As indicated by the arrow.

[0073] In practical applications, the lifting structure 22 can slide only relative to the first moving member 231 along the first direction to adjust the position of the connecting plug 21 in the first direction. The lifting structure 22 can also slide only relative to the second moving member 232 along the second direction to adjust the position of the connecting plug 21 in the second direction. The lifting structure 22 can slide relative to the first moving member 231 along the first direction and can also slide relative to the second moving member 232 along the second direction to adjust the position of the connecting plug 21 in the first and second directions. Its movement mode is diverse and can be selectively adjusted according to the actual charging environment to improve the insertion efficiency of the connecting plug 21 and the connecting socket 1, thereby improving the charging efficiency.

[0074] The lifting structure 22 is located above the first moving member 231, and the lifting base 221 of the lifting structure 22 can be slidably connected to the first moving member 231 via the first pulley assembly. Specifically, as shown... Figure 5As shown, the first moving part 231 has two first sliding grooves 2312 on the side near the lifting base 221. Both first sliding grooves 2312 extend along the first direction. The first pulley assembly includes first pulleys 25. Each first sliding groove 2312 can slide with two first pulleys 25. The bottom of the lifting base 221 is connected to four first pulleys 25. The four first pulleys 25 are arranged in pairs. The two sets of first pulleys 25 slide with two first sliding grooves 2312 respectively to realize the sliding connection between the lifting base 221 and the first moving part 231. The connection method is simple, the assembly is convenient, and the cost is low.

[0075] Among them, such as Figure 7 As shown, the bottom of the lifting base 221 is provided with a first fixing groove 2214 for the installation of the first pulley 25. There are multiple first pulleys 25 and multiple first fixing grooves 2214. The multiple first pulleys 25 are installed in the multiple first fixing grooves 2214 in a one-to-one correspondence. The multiple first fixing grooves 2214 are distributed at intervals on the bottom of the lifting base 221.

[0076] Meanwhile, the second movable component 232 is located below the first movable component 231, and the second movable component 232 is connected to the ground or other charging surfaces to fix the under-vehicle charging device 100. Furthermore, the sliding connection between the second movable component 232 and the first movable component 231 can be the same; that is, the second movable component 232 can be slidably connected to the first movable component 231 via a second pulley assembly. Specifically, for example… Figure 5 As shown, the second moving member 232 has two second sliding grooves 2322 on the side near the first moving member 231. Both second sliding grooves 2322 extend along the second direction. The second pulley assembly includes second pulleys 26. Each second sliding groove 2322 can slide with two second pulleys 26. The bottom of the first moving member 231 is connected to four second pulleys 26. The four second pulleys 26 are arranged in pairs. The two sets of second pulleys 26 slide with two second sliding grooves 2322 respectively to realize the sliding connection between the second moving member 232 and the first moving member 231. The connection method is simple, the assembly is convenient, and the cost is low.

[0077] Among them, such as Figure 1 As shown, the bottom of the first moving part 231 is provided with a second fixing groove 2313 for the installation of the second pulley 26. There are multiple second pulleys 26 and multiple second fixing grooves 2313. The multiple second pulleys 26 are installed in the multiple second fixing grooves 2313 in a one-to-one correspondence. The multiple second fixing grooves 2313 are distributed at intervals on the bottom of the first moving part 231.

[0078] The first moving part 231 can be constructed as a long strip plate, and the second moving part 232 can be constructed as a square plate. The outer dimensions of the first moving part 231 can be the same as those of the second moving part 232, so that when the first moving part 231 moves the lifting structure 22, it will not exceed the second moving part 232, and the overall structure of the under-vehicle charging device 100 is orderly and compact.

[0079] Furthermore, the lifting structure 22 and the first moving part 231 and the first moving part 231 and the second moving part 232 can also be slidably connected by means of slide rails or sliders, and the setting methods are diverse and can be flexibly selected.

[0080] Among them, such as Figure 4 and Figure 5 As shown, the first moving part 231 is provided with a first wire hole 2311, and the second moving part 232 is provided with a second wire hole 2321. The first wire hole 2311 and the second wire hole 2321 are both used to pass through the wire harness of the connector 21, so as to enclose the wire harness within the first moving part 231 and the second moving part 232.

[0081] In practical design, the first moving part 231 and the second moving part 232 can be set as moving plates, and the first wire hole 2311 is located at the center of the first moving part 231. The first wire hole 2311 can be constructed as a strip-shaped hole, and the extension direction of the strip-shaped hole is consistent with the movement direction of the lifting base 221 relative to the first moving part 231. That is, the strip-shaped hole can extend along the first direction, so that when the lifting base 221 moves relative to the first moving part 231, the wire harness of the connecting plug 21 can move in the first direction, avoiding interference of the first moving part 231 with the wire harness and avoiding wear of the wire harness. Moreover, the setting method is simple and the processing is convenient.

[0082] Furthermore, the second through hole 2321 is located at the center of the second moving member 232. The second through hole 2321 can be constructed as a circular hole, which is spaced apart from the two second sliding grooves 2322 of the second moving member 232. The circular hole has a large range, allowing the lifting base 221 to move relative to the first moving member 231 in a first direction and relative to the second moving member 232 in a second direction. The wiring harness of the connector 21 can move freely within the circular hole, effectively avoiding interference from the second moving member 232 with the wiring harness and preventing wear on the wiring harness. The second moving member 232 is located below the first moving member 231. The first through hole 2311 extends along the thickness direction of the first moving member 231 and communicates with the second through hole 2321, while the second through hole 2321 extends along the thickness direction of the second moving member 232. The design is simple and easy to manufacture.

[0083] And, such as Figure 1As shown, the lifting base 221 is provided with a base wire passage hole 2214, which is connected to the rubber ring wire passage hole 241 and the first wire passage hole 2311 respectively. In this way, the wire harness of the connector 21 can pass through the rubber ring wire passage hole 241, the base wire passage hole 2214, the first wire passage hole 2311 and the second wire passage hole 2321 in sequence to connect with the charging device. The wire harness can be accommodated in the under-vehicle charging device 100 to realize the arrangement of the wire harness.

[0084] Therefore, the above-mentioned settings can effectively protect the wiring harness, prevent the wiring harness from being exposed to the outside world and causing wear and tear on the external structure, reduce damage to the wiring harness, extend the service life of the connector 21, and keep the overall structure of the undercarriage charging device 100 neat and orderly, and facilitate the movement and transportation of the undercarriage charging device 100.

[0085] It should be noted that, for example Figure 4 and Figure 5 As shown, a through hole 2314 is provided at each end of the length direction of the first threading hole 2311 to avoid the transmission racks 224 on both sides. The two through holes 2314 can be constructed as square holes and are constructed to open towards each other, so that the two through holes 2314 are connected to the first threading hole 2311 respectively. This facilitates the avoidance of the transmission rack 224 after it runs to the end of the first threading hole 2311, thereby reducing the interference between the transmission rack 224 and the first moving member 231. Moreover, the structure is simple and the first threading hole 2311 and the two through holes 2314 can be processed in one go, saving processing time.

[0086] In some embodiments, the connector 1 is provided with a first plug portion 11 and the connector plug 21 is provided with a second plug portion 211. The connector 1 is formed with a guide portion 12 distributed around the first plug portion 11, and the second plug portion 211 is adapted to be guided along the guide portion 12 to be plugged into and connected with the first plug portion 11.

[0087] Specifically, by providing a guide portion 12 and a first plug portion 11 in the connecting socket 1, when the second plug portion 211 mates with the first plug portion 11, the second plug portion 211 can move along the guide portion 12, ensuring a reliable connection between the second plug portion 211 and the first plug portion 11, thus improving the efficiency and accuracy of the connection. Furthermore, it protects the first plug portion 11 and the second plug portion 211, extending the service life of the connecting socket 1 and the connecting plug 21.

[0088] In actual design, such as Figure 1As shown, the first plug portion 11 is located in the middle of the connector socket 1. The guide portion 12 and the first plug portion 11 are distributed along the thickness direction of the connector socket 1. For example, the distribution direction of the guide portion 12 and the first plug portion 11 is distributed along the lifting direction of the connector plug 21. The guide portion 12 is distributed close to the connector plug 21 and surrounds the first plug portion 11, so that the outer periphery of the first plug portion 11 forms a certain guiding effect at the guide portion 12. The guide portion 12 is open towards the second plug portion 211 at the end away from the first plug portion 11, which is conducive to the second plug portion 211 being plugged in and mated with the first plug portion 11 from the open side.

[0089] Thus, when the second plug-in part 211 is plugged into the first plug-in part 11, and when the centers of the second plug-in part 211 and the first plug-in part 11 are not aligned, the second plug-in part 211 can move along the guide part 12 while being driven by the lifting structure 22 and the moving structure 23, so that the second plug-in part 211 can be guided to be plugged into and connected with the first plug-in part 11.

[0090] Therefore, the guiding function of the guide part 12 can improve the possibility of the second plug-in part 211 and the first plug-in part 11 to adapt to various situations of vehicle parking. Furthermore, the cooperation of the moving structure 23 and the lifting structure 22 can improve the efficiency and reliability of automatic vehicle charging and expand the applicability of the under-vehicle charging device 100.

[0091] In some embodiments, the first plug-in portion 11 is configured as a plug-in interface, and the guide portion 12 is configured as a tapered guide surface. The inner diameter of the tapered guide surface is configured to gradually decrease along the direction close to the first plug-in portion 11. That is, the inner diameter of the tapered guide surface is larger near the second plug-in portion 211, which is beneficial to improve the plug-in fit between the second plug-in portion 211 and the first plug-in portion 11. The inner diameter of the tapered guide surface is smaller near the plug-in interface, which allows the second plug-in portion 211 to be guided towards the first plug-in portion 11 along the tapered guide surface after entering the guide portion 12, so that the second plug-in portion 211 can be plugged into the plug-in interface.

[0092] Specifically, such as Figure 1 As shown, the connector is open towards the connector 21, meaning the connector can be opened downwards. The guide portion 12 is constructed as a tapered guide surface, which is distributed around the connector and extends circumferentially. The inner diameter of the tapered guide surface gradually decreases towards the first connector portion 11 and can be connected to the connector. The tapered guide surface is located below the connector, meaning the cross-section of the tapered guide surface is gradually inclined towards the connector from bottom to top. This allows the second connector portion 211 to move along the tapered guide surface from bottom to top and towards the connector even if the first connector portion 11 and the second connector portion 211 are not aligned in any circumferential direction, so that the second connector portion 211 can be connected to the first connector portion 11 by inserting it into the connector.

[0093] Furthermore, the inner diameter of the tapered guide surface gradually decreases towards the first insertion part 11, which allows for a natural and smooth structural transition of the tapered guide surface, facilitating precise guidance of the second insertion part 211 and simplifying and simplifying the manufacturing process. The specific dimensions of the tapered guide surface can be set according to the actual required guiding range to accommodate the insertion needs of the first insertion part 11 and the second insertion part 211 at different skew positions.

[0094] Therefore, the above-mentioned arrangement can improve the guiding range of the tapered guide surface to the second insertion part 211, thereby improving the reliability of the insertion and engagement between the second insertion part 211 and the first insertion part 11, and also improving the user experience.

[0095] In some embodiments, the connector 21 is further provided with a rolling element 212, which is located at the end of the second plug portion 211 near the first plug portion 11, and the second plug portion 211 is adapted to roll against the tapered guide surface by the rolling element 212.

[0096] In this way, the rolling element 212 allows the second insertion portion 211 to make rolling contact with the tapered guide surface, which improves the guiding efficiency of the tapered guide surface on the second insertion portion 211, thereby improving the insertion and engagement efficiency between the second insertion portion 211 and the first insertion portion 11. Furthermore, the rolling contact area is small, the pressure per unit area is low, and the wear rate is slow. Compared to sliding fits, rolling fits exhibit more uniform wear, longer service life, and lower maintenance costs.

[0097] Specifically, the rolling element 212 can be disposed at the end of the second insertion portion 211 near the first insertion portion 11, and the rolling element 212 can freely rotate. For example, at least a portion of the rolling element 212 may be embedded in the end of the second insertion portion 211, while another portion may be exposed outside the second insertion portion 211. This allows the rolling element 212 to roll and press against the conical guide surface when the second insertion portion 211 moves along the conical guide surface, thereby achieving a rolling fit between the second insertion portion 211 and the conical guide surface. This design is simple in structure and easy to implement. The rolling element 212 can be constructed as a sliding steel ball, etc.

[0098] There are multiple rolling elements 212, and the multiple rolling elements 212 are distributed circumferentially along the second insertion part 211 and roll against the conical guide surface respectively.

[0099] In this way, when the second insertion part 211 moves along the conical guide surface, multiple rolling elements 212 roll and press against the conical guide surface respectively, so that multiple positions of the second insertion part 211 can roll and cooperate with the conical guide surface, which improves the guiding efficiency of the conical guide surface on the second insertion part 211, and the multiple rolling elements 212 can improve the stability and reliability of the movement between the second insertion part 211 and the conical guide surface.

[0100] Specifically, such as Figure 1 and Figure 5 As shown, multiple rolling elements 212 are spaced apart along the circumference of the second insertion portion 211, allowing the second insertion portion 211 to roll into contact with the conical guide surface at multiple circumferential positions via the multiple rolling elements 212. Thus, when the first insertion portion 11 and the second insertion portion 211 are not aligned after the vehicle is parked in the charging position, at least one of the multiple rolling elements 212 can roll against the conical guide surface, enabling the second insertion portion 211 to roll into contact with the conical guide surface at any circumferential position, thereby improving the guiding reliability of the conical guide surface on the second insertion portion 211.

[0101] The multiple rolling elements 212 can be evenly spaced apart along the circumference of the second insertion portion 211, or they can be non-uniformly spaced apart along the circumference of the second insertion portion 211. Furthermore, there can be four, five, six, seven, eight, nine, ten, etc., and the number of rolling elements 212 is related to the size of the second insertion portion 211 and can be set according to actual conditions.

[0102] It should be noted that the movement between the lifting base 221 and the first moving part 231, and between the first moving part 231 and the second moving part 232, does not require an additional control structure. During the upward movement of the connecting plug 21 driven by the lifting drive body 222, the component force generated by the rolling body 212 contacting the conical guide surface is automatically adjusted. Furthermore, during the downward movement of the connecting plug 21 driven by the lifting drive body 222, the lifting base 221 does not need to automatically return to its original position. Instead, it automatically adjusts to a new position each time it rises. The entire structure is simpler, the motion control is simpler, and the cost is lower.

[0103] This utility model also proposes a vehicle.

[0104] The vehicle according to the present utility model includes the under-vehicle charging device 100 of any of the above embodiments. The connection socket 1 of the under-vehicle charging device 100 can be set at the bottom of the vehicle. The connection socket 1 is plugged into the connection plug 21 of the charging device to realize the charging of the battery. Moreover, by setting the lifting structure 22 and the moving structure 23, the connection plug 21 can be automatically plugged into the connection socket 1. The degree of automation is high, reducing manual operation, thereby reducing the risk of electric shock and improving the safety of vehicle use. The charging efficiency is higher than that of wireless charging, which can reduce heat dissipation and improve the accuracy and efficiency of charging operation, making vehicle charging more convenient. The overall structure is simple, the cost is lower, and the practicality is stronger.

[0105] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0106] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A vehicle undercarriage charging device, characterized in that, include: A connection socket, the connection socket being adapted to be fixed relative to the vehicle body; A charging assembly includes a connector plug, a lifting structure, and a moving structure. The lifting structure is slidably mounted on the moving structure, and the connector plug is liftably mounted on the lifting structure. The connector plug is used to plug into the connector socket.

2. The under-vehicle charging device according to claim 1, characterized in that, The lifting structure includes a lifting base and a lifting drive. The lifting base is slidably mounted on the movable structure. The connecting plug is mounted above the lifting base, and the lifting drive is used to drive the connecting plug to move up and down relative to the lifting base.

3. The under-vehicle charging device according to claim 2, characterized in that, The lifting drive includes a drive component and a transmission rack. The output end of the drive component is provided with a drive gear. The transmission rack is vertically mounted on the lifting base, and the connector is fixed relative to the transmission rack. The drive gear meshes with the transmission rack and is adapted to drive the transmission rack to move the connector up and down.

4. The under-vehicle charging device according to claim 3, characterized in that, The lifting base has a guide groove, the transmission rack is movably mounted in the guide groove, and a dovetail fit structure is formed between the transmission rack and the guide groove; And / or, the drive unit and the transmission rack are multiple and correspond to each other, and the multiple transmission racks are distributed around the connector plug.

5. The under-vehicle charging device according to claim 2, characterized in that, The connector plug is connected to the lifting base via a retractable wire guide ring, and the wire guide ring has a wire hole.

6. The under-vehicle charging device according to claim 1, characterized in that, The movable structure includes a first movable member and a second movable member. The lifting structure is slidably mounted on the first movable member along a first direction, and the first movable member is slidably mounted on the second movable member along a second direction. The first direction and the second direction intersect. The first moving part is provided with a first threading hole, and the second moving part is provided with a second threading hole.

7. The under-vehicle charging device according to any one of claims 1-6, characterized in that, The connector socket is provided with a first plug portion, and the connector plug is provided with a second plug portion; The connection socket has a guide portion arranged around the first plug portion, and the second plug portion is adapted to be guided along the guide portion to be plugged into and connected with the first plug portion.

8. The under-vehicle charging device according to claim 7, characterized in that, The first plug-in portion is configured as a plug-in interface, and the guide portion is configured as a tapered guide surface, wherein the inner diameter of the tapered guide surface is configured to gradually decrease along the direction close to the first plug-in portion.

9. The under-vehicle charging device according to claim 8, characterized in that, The connector is further provided with a rolling element, which is located at the end of the second plug portion near the first plug portion, and the second plug portion is adapted to roll against the tapered guide surface by the rolling element; The rolling elements are multiple, and the multiple rolling elements are distributed circumferentially along the second insertion portion, and respectively roll against the conical guide surface.

10. A vehicle, characterized in that, The vehicle undercarriage charging device includes any one of claims 1-9.

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