Vehicle charging device and charging system

Abstract

This application relates to a vehicle charging device and charging system. The vehicle charging device includes: a ground charging interface, including a ground terminal; a vehicle charging interface, including a vehicle retaining ring and a vehicle terminal capable of being plugged into the ground terminal, the vehicle retaining ring forming a vehicle plug-in hole for insertion of the ground charging interface, the vehicle terminal being located within the vehicle plug-in hole; a guide structure disposed at the vehicle charging interface, the guide structure being configured to guide the docking of the ground charging interface and the vehicle charging interface; the guide structure includes a guide surface, at least a portion of the inner surface of the vehicle retaining ring being a guide surface providing guidance to the ground charging interface. This facilitates the docking of the ground charging interface and the vehicle charging interface, reduces docking difficulty, reduces the docking time, and improves docking stability by aligning the vehicle plug-in hole with the fully inserted ground charging interface.

Description

Technical Field

[0001] This application relates to the field of electric vehicle technology, and in particular to vehicle charging devices and charging systems. Background Technology

[0002] Currently, electric vehicles primarily rely on conductive charging technology for recharging, which involves transmitting grid power to the vehicle's battery via a charging gun connected by physical cables. With the widespread adoption of fast charging technology, charging guns and cables have become increasingly bulky and rigid in order to meet the demands of high-current transmission, making plugging and unplugging difficult. Furthermore, for electric vehicles with autonomous driving capabilities, the driver still needs to exit the vehicle to plug and unplug the charging gun, which is insufficient to meet the needs of the high-quality development of the electric vehicle industry.

[0003] To address these issues, a technology has emerged that uses robots to charge vehicles. However, in automatic charging scenarios, the dynamic docking process between the robot and the vehicle's charging interface requires high precision in the robot's movement, resulting in difficulties and long docking times, which negatively impacts the user experience. Utility Model Content

[0004] Therefore, it is necessary to provide a vehicle charging device and charging system to address the current problems of difficulty and long connection time between robots and vehicle charging interfaces.

[0005] A vehicle charging device, comprising:

[0006] Ground charging interface, including ground terminal;

[0007] The vehicle-side charging interface includes a vehicle-side retaining ring and a vehicle-side terminal that can be plugged into the ground terminal. The vehicle-side retaining ring surrounds a vehicle-side plug-in hole for the ground terminal charging interface to be inserted, and the vehicle-side terminal is located inside the vehicle-side plug-in hole.

[0008] A guide structure is disposed at the vehicle-side charging interface and is configured to guide the docking of the ground-side charging interface and the vehicle-side charging interface;

[0009] The guiding structure includes a guiding surface, and at least a portion of the inner surface of the vehicle end retaining ring is the guiding surface that provides guidance to the ground charging interface.

[0010] In one embodiment, along the direction in which the ground-side charging interface is inserted into the vehicle-side charging interface, the cross-section of the guide surface perpendicular to that direction gradually decreases;

[0011] And / or, the ground charging interface is provided with a guiding structure, the guiding structure including a guide ramp, and along the direction in which the vehicle charging interface is inserted into the ground charging interface, the cross section of the guide ramp perpendicular to this direction gradually decreases, and the guide ramp and the guide surface cooperate to guide the docking of the ground charging interface and the vehicle charging interface.

[0012] In one embodiment, the vehicle end retaining ring includes a plug section and a guide section, the plug section forming the vehicle end plug hole, and the inner side of the guide section being the guide surface.

[0013] In one embodiment, the top circumferential edge of the ground charging interface is provided with a chamfered structure.

[0014] In one embodiment, the vehicle-end terminal includes a vehicle-end L-phase terminal, a vehicle-end N-phase terminal, a vehicle-end PE terminal, a vehicle-end CC terminal, and a vehicle-end CP terminal. The vehicle-end L-phase terminal and the vehicle-end N-phase terminal are spaced apart in a first direction, and in the first direction, the vehicle-end PE terminal, the vehicle-end CC terminal, and the vehicle-end CP terminal are all located between the vehicle-end L-phase terminal and the vehicle-end N-phase terminal.

[0015] In one embodiment, the ground terminal includes a ground L-phase terminal, a ground N-phase terminal, a ground PE terminal, a ground CC terminal, and a ground CP terminal. The ground L-phase terminal and the ground N-phase terminal are spaced apart in a first direction, and in the first direction, the ground PE terminal, the ground CC terminal, and the ground CP terminal are all located between the ground L-phase terminal and the ground N-phase terminal.

[0016] In one embodiment, the ground charging interface is provided with a first plug cavity, a second plug cavity and a third plug cavity that are spaced apart in the first direction. The ground L-phase terminal is located in the first plug cavity, the ground PE terminal, the ground CC terminal and the ground CP terminal are all located in the second plug cavity, and the ground N-phase terminal is located in the third plug cavity.

[0017] In one embodiment, the vehicle-end terminal includes at least one vehicle-end high-voltage interlock terminal;

[0018] The ground terminal includes at least one ground high-voltage interlock terminal, which is configured to be plugged into the vehicle-end high-voltage interlock terminal in a one-to-one correspondence.

[0019] In one embodiment, the vehicle-side charging interface further includes at least one first temperature detector configured to monitor the temperature of the vehicle-side terminal.

[0020] In one embodiment, the vehicle-side charging interface is located under the vehicle.

[0021] In one embodiment, the ground charging interface has a terminal insertion cavity for the vehicle-end terminal to be inserted, the ground terminal being located within the terminal insertion cavity; or...

[0022] The vehicle-side charging interface has a terminal insertion cavity for inserting the ground terminal, and the vehicle-side terminal is located within the terminal insertion cavity.

[0023] A charging system, comprising the vehicle charging device described in any of the above embodiments;

[0024] The charging system includes a ground-side charging device and a vehicle-side charging device. The ground-side charging device includes a ground-side charging interface. The vehicle-side charging device is installed in the vehicle and includes a vehicle-side charging interface. The ground-side charging device is communicatively connected to the vehicle.

[0025] The ground-side charging device is used to connect the ground-side charging interface to the vehicle-side charging interface when a charging signal is received, and to output a power supply voltage through the ground-side charging interface.

[0026] In one embodiment, the vehicle-side charging device further includes an electronically controlled switch and a second temperature detector, the second temperature detector being configured to monitor the temperature of the electronically controlled switch.

[0027] In one embodiment, the vehicle-side charging device further includes a processor and a third temperature detector configured to monitor the temperature of the processor.

[0028] In one embodiment, the charging system further includes a cloud platform, and the ground charging device is communicatively connected to the cloud platform to send the vehicle's charging parameters to the cloud platform.

[0029] The aforementioned vehicle charging device, by setting a ground charging interface, a vehicle charging interface, and a guide structure, includes a ground terminal and a vehicle terminal. The ground charging interface includes a ground terminal, and the vehicle charging interface includes a vehicle retaining ring and a vehicle terminal that can be plugged into the ground terminal. The vehicle retaining ring forms a vehicle plug hole for the ground charging interface to be inserted. The guide structure is set on the vehicle charging interface and includes a guide surface. At least part of the inner surface of the vehicle retaining ring is a guide surface that provides guidance for the ground charging interface. This facilitates the docking of the ground charging interface and the vehicle charging interface, reduces the docking difficulty, and reduces the docking time. Furthermore, the vehicle plug hole, in conjunction with the fully inserted ground charging interface, can improve the docking stability of the vehicle charging interface and the ground charging interface. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of a vehicle-side charging device provided in some embodiments of this application.

[0031] Figure 2 for Figure 1 A schematic diagram of the vehicle-side charging interface of the vehicle-side charging device.

[0032] Figure 3 for Figure 1 A cross-sectional view of the vehicle-side charging interface of the vehicle-side charging device.

[0033] Figure 4 This is a schematic diagram of the structure of a ground charging device provided in some embodiments of this application.

[0034] Figure 5 for Figure 4 A top view of the ground charging interface of the vehicle-side charging device.

[0035] Figure 6 for Figure 4 A magnified view of a portion of point A in the middle.

[0036] 1000, Ground-side charging device; 6000, Vehicle-side charging device;

[0037] 11. Autonomously movable vehicle body; 12. Ground charging interface; 121. First insertion cavity; 122. Second insertion cavity; 123. Third insertion cavity; 124. Ground L-phase terminal; 125. Ground N-phase terminal; 126. Ground PE terminal; 127. Ground CC terminal; 128. Ground CP terminal; 129. Ground high-voltage interlock terminal; 13. Locking element; 131. Second lock hole;

[0038] 81. Vehicle-side charging interface; 811. Vehicle-side retaining ring; 8111. Vehicle-side plug hole; 8112. Guide surface; 812. Vehicle-side L-phase terminal; 813. Vehicle-side N-phase terminal; 814. Vehicle-side PE terminal; 815. Vehicle-side CC terminal; 816. Vehicle-side CP terminal; 817. Vehicle-side high-voltage interlock terminal; 818. First temperature detector;

[0039] 82. Body; 83. Vehicle end protective cover; 831. Alternating cavity; 832. First lock hole; 84. Locking rod. Detailed Implementation

[0040] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0041] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 application.

[0042] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0044] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0045] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0046] See Figures 1 to 5 , Figure 1 A schematic diagram of the vehicle-side charging device according to one embodiment of this application is shown. Figure 2 It shows Figure 1 A schematic diagram of the vehicle-side charging interface of the vehicle-side charging device. Figure 3 It shows Figure 1 A cross-sectional view of the vehicle-side charging interface of the vehicle-side charging device. Figure 4 A schematic diagram of the ground terminal charging device in some embodiments of this application is shown. Figure 5 It shows Figure 4 A top view of the ground charging interface of the ground charging device.

[0047] An embodiment of this application provides a vehicle charging device, including a ground-side charging interface 12, a vehicle-side charging interface 81, and a guide structure.

[0048] See Figure 1 and Figure 2 The ground charging interface 12 includes a ground terminal. The vehicle-side charging interface 81 includes a vehicle-side retaining ring 811 and a vehicle-side terminal that can be plugged into the ground terminal. The vehicle-side retaining ring 811 surrounds a vehicle-side insertion hole 8111 for insertion of the ground charging interface 12. A guide structure is disposed on the vehicle-side charging interface 81, and the guide structure is configured to guide the docking of the ground charging interface 12 and the vehicle-side charging interface 81. The guide structure includes a guide surface 8112, and at least a portion of the inner surface of the vehicle-side retaining ring 811 is a guide surface 8112 that provides guidance to the ground charging interface 12.

[0049] Understandably, the vehicle charging device, by setting up a ground charging interface 12, a vehicle charging interface 81, and a guide structure, the guide structure including a guide surface 8112, and at least a portion of the inner surface of the vehicle retaining ring 811 serving as the guide surface 8112 for guiding the ground charging interface 12, facilitates the docking of the ground charging interface 12 and the vehicle charging interface 81, reduces docking difficulty, and reduces the docking time. Furthermore, the vehicle plug hole 8111, in conjunction with the fully inserted ground charging interface 12, can improve the docking stability of the vehicle charging interface 81 and the ground charging interface 12.

[0050] For example, in one specific implementation, see [reference] Figure 1 and Figure 2 A guide surface 8112 is disposed on the vehicle-side charging interface 81. Along the direction in which the ground-side charging interface 12 is inserted into the vehicle-side charging interface 81, the cross-section of the guide surface 8112, perpendicular to the direction in which the ground-side charging interface 12 is inserted into the vehicle-side charging interface 81, gradually decreases. At this time, the guide structure is disposed on the vehicle-side charging interface 81.

[0051] Understandably, the guide surface 8112 is set as a guide slope so that the ground charging interface 12 can be guided towards the center of the vehicle charging interface 81 during docking, so as to facilitate the insertion of the ground terminal and the vehicle terminal. At this time, the shape of the vehicle charging interface 81 on the guide surface 8112 is conical or flared.

[0052] Of course, in some embodiments, the ground charging interface is provided with a guiding structure, which includes a guide ramp. That is, the ground charging interface has a guide ramp. In this case, along the direction in which the vehicle charging interface is inserted into the ground charging interface, the cross-section of the guide ramp, perpendicular to the direction in which the vehicle charging interface is inserted into the ground charging interface, gradually decreases. The guide ramp and the guide surface cooperate to guide the docking of the ground charging interface and the vehicle charging interface. Thus, the guide surface 8112 of the vehicle charging interface 81 and the guide ramp of the ground charging interface 12 contact each other during docking, simultaneously serving a guiding function, enabling precise docking of the ground charging interface and the vehicle charging interface and reducing the probability of docking jamming.

[0053] Furthermore, the ground charging interface 12 can be installed on the autonomously movable vehicle body 11. The autonomously movable vehicle body 11 and the ground charging interface 12 constitute the ground charging device 1000. This allows for communication between the ground charging device 1000 and the vehicle, enabling the ground charging interface 12 and the vehicle charging interface 81 to automatically dock, eliminating the need for the driver to manually insert the charging gun into the vehicle's charging port, thus improving charging convenience. Moreover, the ground charging interface 12 and the vehicle charging interface 81 use a contact plug-in connection for vehicle charging, ensuring a reliable connection between them.

[0054] At this time, the ground charging interface 12 can also be raised and lowered by the lifting structure set on the autonomously movable vehicle body 11, thereby realizing the plugging and unplugging of the charging interface 81 relative to the vehicle.

[0055] In some embodiments, the vehicle-side charging interface 81 is located under the vehicle. This effectively prevents damage to the vehicle-side charging interface 81 from external collisions, rain, etc. It also facilitates docking with the ground-side charging interface 12, reducing the lifting distance of the ground-side charging interface 12. For example, the ground-side charging interface 12 can be located in a parking space, and after the vehicle is parked, the ground-side charging interface 12 can be lifted to dock with the vehicle-side charging interface 81.

[0056] Of course, the vehicle-side charging port 81 can also be located in other parts of the vehicle, such as the rear of the vehicle.

[0057] See Figure 1 and Figure 2 In some embodiments, the vehicle end retaining ring 811 includes a plug-in section and a guide section, the inner side of the guide section is a guide surface 8112, and the plug-in section surrounds and forms a vehicle end plug-in hole 8111.

[0058] Understandably, the insertion section forms the vehicle-end insertion hole 8111, mainly used for positioning and limiting the ground-end charging interface 12, so that the vehicle-end charging interface 81 and the ground-end charging interface 12 can be stably connected, improving the safety of charging the vehicle. The guide section mainly guides the ground-end charging interface 12 through the guide surface 8112. Even if there is a certain degree of deviation between the ground-end charging interface 12 and the vehicle-end charging interface 81, the guide surface 8112 can still allow the ground-end charging interface 12 to be inserted into the vehicle-end insertion hole 8111.

[0059] The guide section is flared in shape, meaning it has a large-diameter end and a small-diameter end, with the large-diameter end located on the outer side. Alternatively, the outer end of the guide section may have a chamfered structure, which can also form the aforementioned guide surface 8112.

[0060] In some embodiments, the circumferential edge of the top of the ground charging interface 12 is provided with a chamfered structure. This, in conjunction with the guide surface 8112 of the vehicle-side retaining ring 811, serves to guide and position the ground charging interface 12 and the vehicle-side charging interface 81 when they are docked, facilitating the docking of the ground charging interface 12 and the vehicle-side charging interface 81.

[0061] In some embodiments, see Figure 1 and Figure 2The vehicle-end terminals include a vehicle-end L-phase terminal 812, a vehicle-end N-phase terminal 813, a vehicle-end PE terminal 814, a vehicle-end CC terminal 815, and a vehicle-end CP terminal 816. The vehicle-end L-phase terminal 812 and the vehicle-end N-phase terminal 813 are spaced apart in a first direction, and in this first direction, the vehicle-end PE terminal 814, vehicle-end CC terminal 815, and vehicle-end CP terminal 816 are all located between the vehicle-end L-phase terminal 812 and the vehicle-end N-phase terminal 813. The first direction is as follows: Figure 2 The X direction is shown in the diagram.

[0062] Understandably, the spaced L-phase terminal 812 and N-phase terminal 813 on the vehicle side increase the physical creepage distance between them, improving the safety of plugging and unplugging the ground charging interface 12 relative to the vehicle charging interface 81. Furthermore, placing the PE terminal 814, CC terminal 815, and CP terminal 816 between the L-phase terminal 812 and N-phase terminal 813 allows for a more rational wiring harness arrangement and more even force distribution when the ground charging interface 12 and vehicle charging interface 81 are plugged in. This ensures a more stable physical connection during high-current transmission and reduces overheating issues caused by poor contact.

[0063] In some embodiments, the vehicle-side charging interface 81 further includes at least one first temperature detector 818, which is used to monitor the temperature of the vehicle-side terminals. For example, two first temperature detectors 818 are provided to monitor the temperatures of the vehicle-side L-phase terminal 812 and the vehicle-side N-phase terminal 813, respectively. Of course, one or more first temperature detectors can also be provided to monitor the temperature of one or more vehicle-side terminals.

[0064] For example, see Figure 3 The vehicle-side terminals include a vehicle-side L-phase terminal 812, wherein a first temperature detector 818 is used to monitor the temperature of the vehicle-side L-phase terminal 812. Specifically, the first temperature detector 818 mainly monitors the temperature of the vehicle-side L-phase terminal 812 in real time when the vehicle-side charging interface 81 and the ground-side charging interface 12 are connected to charge the vehicle.

[0065] Understandably, after the L-phase terminal 812 on the vehicle side is connected to the L-phase terminal 124 on the ground side, it serves as the main power line for transmitting large currents. Under long-term high-load operation, it is prone to generating heat. Therefore, the temperature of the L-phase terminal 812 on the vehicle side is monitored in real time by the first temperature detector 818. When the temperature exceeds the safety threshold, a signal can be fed back to stop charging. Or when the temperature is close to the safety threshold, a signal can be fed back to reduce the charging power or reduce the charging current, thus ensuring charging safety and optimizing charging efficiency.

[0066] For example, see Figure 3The vehicle-side terminals include a vehicle-side N-phase terminal 813. A first temperature detector 818 is used to monitor the temperature of the vehicle-side N-phase terminal 813. Specifically, the first temperature detector 818 monitors the temperature of the vehicle-side N-phase terminal 813 in real time when the vehicle-side charging interface 81 and the ground charging interface 12 are connected to charge the vehicle.

[0067] Understandably, during AC charging, the N-phase and L-phase form a complete current loop, carrying the same amount of current. Therefore, the N-phase terminal 813 at the vehicle end will also generate abnormal heat due to prolonged high current operation, dust accumulation, oxidation, or poor contact. Therefore, by monitoring the temperature in real time, charging can be stopped or the charging power can be reduced when the temperature exceeds or approaches the safety threshold, thus ensuring charging safety and optimizing charging efficiency.

[0068] See Figure 4 and Figure 5 The ground terminals include a ground L-phase terminal 124, a ground N-phase terminal 125, a ground PE terminal 126, a ground CC terminal 127, and a ground CP terminal 128. The ground L-phase terminal 124 and the ground N-phase terminal 125 are spaced apart in a first direction, and in this first direction, the ground PE terminal 126, the ground CC terminal 127, and the ground CP terminal 128 are all located between the ground L-phase terminal 124 and the ground N-phase terminal 125. The first direction is as follows: Figure 5 The X direction is shown in the diagram.

[0069] The L-phase ground terminal 124 is used to connect to the L-phase vehicle terminal 812 to transmit electrical energy from the external power grid to the vehicle. The N-phase ground terminal 125 is used to connect to the N-phase vehicle terminal 813, and together with the L-phase, provides a complete current loop for AC power, ensuring stable charging. The PE ground terminal 126 is used to connect to the PE vehicle terminal 814 to connect the ground wire of the ground charging device 1000 and the ground wire of the vehicle charging device 6000. The CC ground terminal 127 is used to connect to the CC vehicle terminal 815 to confirm that the ground charging interface 12 and the vehicle charging interface 81 are fully and securely connected. The CP ground terminal 128 is used to connect to the CP vehicle terminal 816 to transmit a pulse width modulation signal, informing the vehicle of the maximum safe charging current that the ground charging device 1000 can provide, so that the vehicle's on-board charger can adjust the charging power accordingly.

[0070] See Figure 2 and Figure 5 The vehicle-end terminal also includes at least one vehicle-end high-voltage interlock terminal 817, and the ground terminal includes at least one ground high-voltage interlock terminal 129. The ground high-voltage interlock terminal 129 can be plugged into the vehicle-end high-voltage interlock terminal 817 in a one-to-one correspondence.

[0071] When the ground charging interface 12 and the vehicle charging interface 81 are connected, the vehicle high-voltage interlock terminal 817 is plugged into the ground high-voltage interlock terminal 129, thereby connecting to the vehicle's vehicle controller to monitor the high-voltage connection status in real time. This also avoids the dangerous arcing caused by direct plugging and unplugging in a high-voltage environment, thus improving safety.

[0072] For example, see Figure 2 and Figure 5 There are two high-voltage interlock terminals 817 at the vehicle end and two high-voltage interlock terminals 129 at the ground end. The two high-voltage interlock terminals 817 at the vehicle end and the two high-voltage interlock terminals 129 at the ground end are connected in a one-to-one correspondence.

[0073] Among them, see Figure 2 Two high-voltage interlock terminals 817 are spaced apart in a first direction, and two high-voltage interlock terminals 817, 815, and 816 are also spaced apart in the first direction. These terminals are arranged in a quadrilateral configuration. In a second direction, the high-voltage interlock terminals 817, 815, and 816, the two high-voltage interlock terminals 817, and the PE terminal 814 are arranged sequentially. The second direction is perpendicular to the first direction.

[0074] See Figure 5 The distribution of the high-voltage interlock terminals of the ground charging interface 12 is similar to that of the vehicle charging interface 81, and will not be described in detail here.

[0075] In some embodiments, one of the vehicle-end terminal and the ground terminal is provided with a terminal insertion hole, and the other is provided with a pin that can be inserted into the terminal insertion hole.

[0076] See Figure 2 In one specific implementation, the vehicle-end terminal has a terminal insertion hole for the ground terminal to be inserted. In this case, the ground terminal is a pin.

[0077] Specifically, the L-phase terminal 812, N-phase terminal 813, CC terminal 815, CP terminal 816, PE terminal 814, and high-voltage interlock terminal 817 on the vehicle end all have terminal insertion holes for the corresponding ground terminal to be inserted.

[0078] Of course, in another specific implementation, the ground terminal can have a terminal insertion hole for the vehicle terminal to be inserted, in which case the vehicle terminal is a pin.

[0079] In some embodiments, see Figure 5The ground charging interface 12 has a terminal insertion cavity for inserting a vehicle-end terminal, wherein the ground terminal is disposed within the terminal insertion cavity. This means that when the ground charging interface 12 and the vehicle-end charging interface 81 are connected, the vehicle-end terminal is inserted into the terminal insertion cavity, thereby achieving limiting and positioning. Furthermore, with the vehicle-end terminal having a terminal insertion hole for inserting the ground terminal, dual positioning and limiting are achieved, improving the stability of the connection between the ground charging interface 12 and the vehicle-end charging interface 81.

[0080] For details, please refer to Figure 5 The ground charging interface 12 has three spaced-apart insertion cavities: a first insertion cavity 121, a second insertion cavity 122, and a third insertion cavity 123. Specifically, the ground L-phase terminal 124 is located in the first insertion cavity 121; the ground PE terminal 126, ground CC terminal 127, and ground CP terminal 128 are all located in the second insertion cavity 122; and the ground N-phase terminal 125 is located in the third insertion cavity 123. This arrangement of three independent insertion cavities increases the contact area between the ground charging interface 12 and the vehicle-side charging interface 81, further improving the stability of their connection.

[0081] In addition, the aforementioned ground high-voltage interlock terminal 129 is also located in the second insertion cavity 122.

[0082] It should be noted that the shape of each plug cavity is adapted to the shape of the inserted vehicle-end terminal. For example, the first plug cavity 121 is a circular plug cavity adapted to the L-phase terminal 812 of the vehicle end. The second plug cavity 122 can be adapted to the boundary shape of the structure formed by the vehicle-end CC terminal 815, vehicle-end PE terminal 814, vehicle-end CP terminal 816 and vehicle-end high-voltage interlock terminal 817.

[0083] Of course, in other embodiments, the vehicle-side charging interface may have a terminal insertion cavity for inserting a ground terminal. In this case, the vehicle-side terminal is located within the terminal insertion cavity. Furthermore, the ground terminal has a terminal insertion hole for inserting the vehicle-side terminal, in which case the vehicle-side terminal is a pin.

[0084] This embodiment also provides a charging system, including the charging device in any of the above embodiments.

[0085] Specifically, the charging system includes a ground-side charging device 1000 and a vehicle-side charging device 6000. The ground-side charging device 1000 includes a ground-side charging interface 12. The vehicle-side charging device 6000 is installed in the vehicle and includes a vehicle-side charging interface 81. The ground-side charging device 1000 is communicatively connected to the vehicle.

[0086] The ground-side charging device 1000 is used to connect the ground-side charging interface 12 to the vehicle-side charging interface 81 when a charging signal is received, and output the power supply voltage through the ground-side charging interface 12.

[0087] The charging signal can be sent from the vehicle to the ground charging device 1000. For example, when the vehicle detects that its battery level is lower than a set value after parking, it sends a charging signal to the ground charging device 1000. Alternatively, the driver can send the charging signal to the ground charging device 1000 via a mobile terminal, such as a mobile phone or tablet. Furthermore, the ground charging device 1000 may also include a charging pile connected to the vehicle-side charging interface 81 via a cable, allowing the sending of charging signals to be controlled via the charging pile.

[0088] The communication connection can be either a Wi-Fi signal connection or a Bluetooth signal connection; no specific limitation is made here.

[0089] In this configuration, the ground-side charging device 1000 may include a self-moving vehicle body 11. The self-moving vehicle body 11 may be equipped with a drive structure capable of raising the ground-side charging interface 12 to connect with the vehicle-side charging interface 81, allowing charging voltage to be output to the vehicle via both the ground-side charging interface 12 and the vehicle-side charging interface 81. The drive structure may also raise the ground-side charging interface 12 to disconnect it from the vehicle-side charging interface 81. Furthermore, the self-moving vehicle body 11 may be equipped with a positioning device that detects the position of the vehicle-side charging interface 81, for example, using image positioning and / or optical positioning, to confirm its location. This enables automatic connection between the ground-side charging interface 12 and the vehicle-side charging interface 81, eliminating the need for the driver to manually insert the charging gun into the vehicle-side charging interface 81, thus improving the convenience of vehicle charging, charging efficiency, and user experience.

[0090] In addition, the vehicle-side charging device 6000 also includes an electronic control switch and a second temperature detector, the second temperature detector being used to monitor the temperature of the electronic control switch.

[0091] The second temperature detector is mainly used to monitor the temperature of the electronic control switch in real time when the ground charging interface 12 and the vehicle charging interface 81 are connected to the vehicle for charging. This is because the electronic control switch is the core control component of the high-voltage system during charging, bearing the important responsibility of connecting and disconnecting large currents. The purpose of real-time temperature monitoring is to prevent the contacts from overheating and burning out, avoid thermal runaway, and thus ensure the safety of the entire charging system.

[0092] The electronic control switch can be selected as a relay.

[0093] The vehicle-side charging device 6000 also includes a processor and a third temperature detector, which is used to monitor the temperature of the processor.

[0094] The third temperature detector is mainly used to monitor the processor temperature in real time when the ground charging interface 12 and the vehicle charging interface 81 are connected to the vehicle for charging. This is because the processor needs to continuously perform high-frequency data calculations, signal processing, and logical judgments during the charging process, which generates a lot of heat. By monitoring the processor temperature in real time through the third temperature detector, the chip can be prevented from overheating and failing, thus ensuring the safe and stable operation of the charging system.

[0095] The processor can be selected as an MCU (Microcontroller Unit).

[0096] See Figure 1 The vehicle-side charging device 6000 also includes a body 82 and a vehicle-side protective cover 83 rotatably mounted on the body 82. The vehicle-side charging interface 81 is located on the body 82. The vehicle-side protective cover 83 can be selectively closed to cover the vehicle-side charging interface 81, or opened to expose the vehicle-side charging interface 81. That is, when the vehicle needs to be charged, the vehicle-side protective cover 83 can be opened to expose the vehicle-side charging interface 81. After charging is completed, the vehicle-side charging interface 81 and the ground charging interface 12 are disconnected, and the vehicle-side protective cover 83 can be closed to cover the vehicle-side charging interface 81, thereby providing protection for the vehicle-side charging interface 81.

[0097] In addition, the vehicle-side charging device 6000 also includes a locking rod 84 and a locking rod drive member disposed on the main body 82. A recess 831 is provided on the vehicle-side protective cover 83 corresponding to the locking rod 84, and a first locking hole 832 communicating with the recess 831 is provided on the vehicle-side protective cover 833. When the vehicle-side protective cover 83 is in the closed position covering the vehicle-side charging interface 81, the locking rod 84 is located in the recess 831, and the locking rod drive member can drive the locking rod 84 to move and insert into the first locking hole 832. Thus, the locking rod 84 and the first locking hole 832 cooperate to limit the movement of the vehicle-side protective cover 83, ensuring that the vehicle-side protective cover 83 is stably in the closed position.

[0098] Among them, see Figure 1 The movement direction of the locking lever 84 is perpendicular to the rotation axis of the end cover 83. Furthermore, the rotation of the end cover 83 can be driven by a motor, enabling automatic opening or closing of the end cover 83. The locking lever drive can also be a motor, which is connected to the locking lever 84 via a transmission structure such as a gear or lead screw, thus enabling automated movement of the locking lever 84 to lock or unlock the end cover 83.

[0099] Figure 6 It shows Figure 4 A magnified view of a portion of point A in the middle.

[0100] Further, see Figure 6The aforementioned ground charging device 1000 also includes a locking member 13 disposed on the autonomously movable vehicle body 11, and the locking member 13 is provided with a second locking hole 131. When the ground charging interface 12 and the vehicle charging interface 81 are plugged in, the locking rod 84 can be inserted into the second locking hole 131, so that the ground charging interface 12 can be locked by the locking rod 84, which is conducive to the stable plugging of the ground charging interface 12 and the vehicle charging interface 81.

[0101] Thus, by setting the locking lever 84, the vehicle-side protective cover 83 can be locked when charging is not required, ensuring that the vehicle-side protective cover 83 is stably in the closed position and providing protection for the vehicle-side charging interface 81. At the same time, during charging, that is, after the ground-side charging interface 12 and the vehicle-side charging interface 81 are connected, the locking lever 84 cooperates with the locking member 13 to lock the ground-side charging device 1000, thereby facilitating the stable connection between the vehicle-side charging interface 81 and the ground-side charging interface 12.

[0102] In some embodiments, the charging system further includes a cloud platform, with the ground-side charging device 1000 communicatively connected to the cloud platform to send vehicle charging parameters to the cloud platform. These charging parameters include, but are not limited to, charging power, charging voltage, and charging current. Furthermore, the ground-side charging device 1000 can also send fault information during charging to the cloud platform for storage and subsequent retrieval of fault information.

[0103] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0104] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A vehicle charging device, characterized in that, include: Ground charging interface (12), including ground terminal; The vehicle-side charging interface (81) includes a vehicle-side retaining ring (811) and a vehicle-side terminal that can be plugged into the ground terminal. The vehicle-side retaining ring (811) surrounds and forms a vehicle-side plug-in hole (8111) for the ground terminal charging interface (12) to be inserted into. The vehicle-side terminal is located inside the vehicle-side plug-in hole (8111). A guide structure is disposed at the vehicle-side charging interface (81) and the guide structure is configured to guide the docking of the ground-side charging interface (12) and the vehicle-side charging interface (81); The guiding structure includes a guide surface (8112), and at least a portion of the inner surface of the vehicle end retaining ring (811) is the guide surface (8112) that provides guidance to the ground end charging interface (12).

2. The vehicle charging device according to claim 1, characterized in that, As the ground-side charging interface (12) is inserted into the vehicle-side charging interface (81), the cross-section of the guide surface (8112) perpendicular to this direction gradually decreases. And / or, the ground charging interface is provided with a guide structure, the guide structure includes a guide slope, and along the direction in which the vehicle charging interface (81) is inserted into the ground charging interface (12), the cross section of the guide slope perpendicular to this direction gradually decreases, and the guide slope cooperates with the guide surface (8112) to guide the docking of the ground charging interface (12) and the vehicle charging interface (81).

3. The vehicle charging device according to claim 1, characterized in that, The vehicle end retaining ring (811) includes a plug section and a guide section. The plug section surrounds and forms the vehicle end plug hole (8111), and the inner side of the guide section is the guide surface (8112).

4. The vehicle charging device according to claim 1, characterized in that, The top edge of the ground charging interface (12) has a chamfered structure.

5. The vehicle charging device according to claim 1, characterized in that, The vehicle-end terminals include a vehicle-end L-phase terminal (812), a vehicle-end N-phase terminal (813), a vehicle-end PE terminal (814), a vehicle-end CC terminal (815), and a vehicle-end CP terminal (816). The vehicle-end L-phase terminal (812) and the vehicle-end N-phase terminal (813) are spaced apart in a first direction, and in the first direction, the vehicle-end PE terminal (814), the vehicle-end CC terminal (815), and the vehicle-end CP terminal (816) are all located between the vehicle-end L-phase terminal (812) and the vehicle-end N-phase terminal (813).

6. The vehicle charging device according to claim 1, characterized in that, The ground terminal includes a ground L-phase terminal (124), a ground N-phase terminal (125), a ground PE terminal (126), a ground CC terminal (127), and a ground CP terminal (128). The ground L-phase terminal (124) and the ground N-phase terminal (125) are spaced apart in a first direction. In the first direction, the ground PE terminal (126), the ground CC terminal (127), and the ground CP terminal (128) are all located between the ground L-phase terminal (124) and the ground N-phase terminal (125).

7. The vehicle charging device according to claim 6, characterized in that, The ground charging interface (12) is provided with a first plug cavity (121), a second plug cavity (122) and a third plug cavity (123) that are spaced apart in the first direction. The ground L-phase terminal (124) is located in the first plug cavity (121), the ground PE terminal (126), the ground CC terminal (127) and the ground CP terminal (128) are all located in the second plug cavity (122), and the ground N-phase terminal (125) is located in the third plug cavity (123).

8. The vehicle charging device according to claim 1, characterized in that, The vehicle end terminal includes at least one vehicle end high voltage interlock terminal (817). The ground terminal includes at least one ground high-voltage interlock terminal (129), which is configured to be plugged into the vehicle-end high-voltage interlock terminal (817) in a one-to-one correspondence.

9. The vehicle charging device according to claim 1, characterized in that, The vehicle-side charging interface (81) also includes at least one first temperature detector configured to monitor the temperature of the vehicle-side terminal.

10. The vehicle charging device according to any one of claims 1-9, characterized in that, The vehicle-side charging interface (81) is located on the underside of the vehicle.

11. The vehicle charging device according to any one of claims 1-9, characterized in that, The ground charging interface (12) has a terminal insertion cavity for inserting the vehicle-end terminal, and the ground terminal is located within the terminal insertion cavity; or, The vehicle-side charging interface (81) has a terminal insertion cavity for inserting the ground terminal, and the vehicle-side terminal is located in the terminal insertion cavity.

12. A charging system, characterized in that, Includes the vehicle charging device as described in any one of claims 1-11; The charging system includes a ground-side charging device (1000) and a vehicle-side charging device (6000). The ground-side charging device (1000) includes a ground-side charging interface (12). The vehicle-side charging device (6000) is installed in the vehicle and includes a vehicle-side charging interface (81). The ground-side charging device (1000) is communicatively connected to the vehicle. The ground-side charging device (1000) is used to drive the ground-side charging interface (12) to connect with the vehicle-side charging interface (81) when a charging signal is received, and output the power supply voltage through the ground-side charging interface (12).

13. The charging system according to claim 12, characterized in that, The vehicle-side charging device (6000) also includes an electronic control switch and a second temperature detector, the second temperature detector being configured to monitor the temperature of the electronic control switch.

14. The charging system according to claim 12, characterized in that, The vehicle-side charging device (6000) also includes a processor and a third temperature detector configured to monitor the temperature of the processor.

15. The charging system according to any one of claims 12-14, characterized in that, The charging system also includes a cloud platform, and the ground charging device (1000) is communicatively connected to the cloud platform to send the vehicle's charging parameters to the cloud platform.

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