A charging device

Abstract

The present invention discloses a charging device, which relates to the field of charging technology. The charging device includes a first circuit end and a second circuit end. The first circuit end is used to connect to a power battery, including a male terminal, the male terminal including a male head and a male electrode piece provided on the male head. The second circuit end is used to connect to an external power source, including a female terminal, the female terminal including a female head, a female electrode piece, and a first elastic component, the female electrode piece being mounted on the female head via the first elastic component. The female electrode piece is used to cooperate with the male electrode piece to charge the power battery, and the first elastic component is configured to press the female electrode piece against the male electrode piece when the female electrode piece and the male electrode piece cooperate. The first circuit end of the charging device is provided on an unmanned vehicle or other operating equipment, and the second circuit end can be connected to an external power source, thereby facilitating automatic charging of the equipment. At the same time, the first elastic component can press the male electrode piece against the female electrode piece during charging, thereby also ensuring the stability and safety of the charging process of the unmanned vehicle or other operating equipment.

Description

Technical Field

[0001] The present invention relates to the field of charging technology, and in particular to a charging device. Background Art

[0002] In recent years, the development of unmanned vehicles (UAVs) and drones has garnered widespread attention due to their advantages, including mobility, rapid response, unmanned operation, and low operating requirements. These devices are now widely used in a variety of fields, including agriculture and industry. In the field of crop protection, various operating devices can be installed on unmanned vehicles and other equipment to spray pesticides, seeds, and powders. Compared to traditional manual operations, this significantly reduces labor intensity and improves efficiency.

[0003] In the existing technology, unmanned vehicles and other operating equipment need to be manually plugged into the charging interface for charging, which greatly reduces the user experience of the unmanned vehicles. In addition, the male terminals of unmanned vehicles and other operating equipment are easily separated from the female terminals during the charging process, making the stability and safety of the charging process not guaranteed. Summary of the Invention

[0004] The object of the present invention is to provide a charging device, the first circuit end of which can be set on an operating equipment such as an unmanned vehicle, and the second circuit end can be connected to an external power supply. Therefore, when the operating equipment needs to be charged, it can directly drive the first circuit end and the second circuit end to cooperate, which can improve the user experience of using the operating equipment; at the same time, when the first circuit end and the second circuit end of the charging device cooperate, the male pole piece can be pressed against the female pole piece under the action of the first elastic component, which can ensure the stability of the cooperation between the two, thereby ensuring the stability and safety of the charging process of operating equipment such as unmanned vehicles.

[0005] The embodiment of the present invention is achieved as follows:

[0006] The present invention provides a charging device for connecting to an external power source to charge a power battery of an operating device, the charging device comprising:

[0007] A first circuit end, used for connecting to a power battery, includes a male terminal, the male terminal including a male head and a male electrode sheet provided on the male head;

[0008] The second circuit end is used to connect to an external power source, including a female terminal, the female terminal including a female head, a female pole piece and a first elastic component, and the female pole piece is mounted on the female head through the first elastic component;

[0009] The female pole piece is used to cooperate with the male pole piece to charge the power battery, and the first elastic component is configured to hold the female pole piece against the male pole piece when the female pole piece cooperates with the male pole piece.

[0010] In an optional embodiment, the female head is provided with a mounting slot; the first elastic component includes a spring clip and a first elastic member; the spring clip is plugged into the mounting slot and can be partially exposed from the mounting slot, and the female pole piece is arranged at the portion of the spring clip exposed from the mounting slot; the first elastic member is arranged in the mounting slot and is located between the bottom of the mounting slot and the spring clip, and the first elastic member is configured to cause the spring clip to drive the female pole piece to press against the male pole piece when the female pole piece and the male pole piece are engaged.

[0011] In an optional embodiment, the female head portion is provided with at least one set of mounting slot assemblies, and each set of mounting slot assemblies includes two mounting slots that are opposite and spaced apart from each other, each mounting slot is equipped with a spring latch and a first elastic member, and each first elastic member extends in the same direction as a line connecting the two opposite mounting slots, and a mating groove is formed between the two spring latches corresponding to each set of mounting slots;

[0012] The male portion is provided with a plurality of male pole pieces, which can be plugged into the matching slot so that each spring buckle can hold the female pole piece against the male pole piece at the corresponding position.

[0013] In an optional embodiment, the male head is arranged in an axial structure, and the male pole piece is arranged on the surface of the male head; the spring buckle includes an arc-shaped concave surface, and the female pole piece is arranged in affixed relation to the arc-shaped concave surface. The two arc-shaped concave surfaces corresponding to each set of mounting slot assemblies form an arc-shaped mating groove arranged coaxially with the axial structure to be plugged into the axial structure.

[0014] In an optional embodiment, along the line connecting the two mounting slots of each mounting slot assembly, when the first elastic member is freely extended, the radial dimension of the arc-shaped mating slot is smaller than the radial dimension of the male portion, so that the male portion can compress the first elastic member when mating with the mating slot;

[0015] or,

[0016] The mating groove has a notch, and the male head passes through the notch and is plugged into the mating groove; the spring buckle also includes a transition surface arranged adjacent to the notch, and a transition groove connected to the mating groove is formed between the two transition surfaces corresponding to each group of mounting groove components. Along the connecting direction of the two mounting grooves of each group of mounting groove components, when the first elastic member is freely extended, the width dimension of the transition groove and the radial dimension of the arc-shaped mating groove are both smaller than the radial dimension of the male head, and the width dimension of the transition groove is less than or equal to the diameter of the mating groove, so that the male head can compress the first elastic member when mating with the transition groove and the mating groove.

[0017] In an optional embodiment, the female head portion is further provided with a mounting cavity having an opening, and the two mounting grooves of each mounting groove assembly are oppositely and spaced apart from each other on two opposite walls of the mounting cavity and are both in communication with the mounting cavity;

[0018] When the male head is mated with the female head, the male head can pass through the opening and be plugged into the mating groove.

[0019] In an optional embodiment, a movable groove is provided on one of the spring buckle and the groove wall of the installation groove, and the extension direction of the movable groove is the same as the extension direction of the first elastic member; a movable column is provided on the other of the spring buckle and the groove wall of the installation groove, and the movable column is plugged into and fitted with the movable groove.

[0020] In an optional embodiment, the second circuit end also includes a shell and a second elastic component, the shell has a cavity, the female head is movably arranged in the cavity through the second elastic component, and the second elastic component is configured to buffer and adjust the position of the female head when the female pole piece and the male pole piece are engaged.

[0021] In an optional embodiment, the second elastic component includes a movable shell and a second elastic member, the movable shell is movably arranged in the shell, the second elastic member extends along the direction of cooperation between the male head and the female head, and one end is connected to the shell and the other end is connected to the movable shell, and the female head is fixedly connected to the movable shell.

[0022] In an optional embodiment, one of the shell and the movable shell is provided with a limit groove extending along the direction of the male head and the female head, and the other of the shell and the movable shell is provided with a limit column, which is plugged into the limit groove.

[0023] In an optional embodiment, the first circuit end also includes a fixed shell and two pivot parts. The fixed shell is used to be fixedly connected to the operating equipment. Pivot holes are provided at both ends of the fixed shell. The two ends of the male head are pivotally connected to the pivot holes at the corresponding positions through a pivot part respectively.

[0024] In an optional embodiment, two pivot grooves corresponding to the two pivot holes are further provided at both ends of the fixed shell, and the pivot grooves are connected to the pivot holes at the corresponding positions. Each pivot member is inserted into the pivot groove at the corresponding position and passes through the pivot groove at the corresponding position to be pivotally connected to the pivot hole.

[0025] In an optional embodiment, a first limiting portion and a second limiting portion are further provided on the fixed shell and / or the pivot slot. The first limiting portion and the second limiting portion are respectively located on both sides of the pivot member for limiting the rotation angle of the pivot member.

[0026] The embodiments of the present invention have at least the following advantages or beneficial effects:

[0027] An embodiment of the present invention provides a charging device for connecting to an external power source to charge a power battery of an operating equipment, the charging device including a first circuit end and a second circuit end; the first circuit end is used to connect to the power battery, including a male terminal, the male terminal including a male head and a male pole piece arranged on the male head; the second circuit end is used to connect to the external power source, including a female terminal, the female terminal including a female head, a female pole piece and a first elastic component, the female pole piece is installed on the female head through the first elastic component; the female pole piece is used to cooperate with the male pole piece to charge the power battery, and the first elastic component is configured to hold the female pole piece against the male pole piece when the female pole piece cooperates with the male pole piece.

[0028] The first circuit end of the charging device can be set on unmanned vehicles and other operating equipment, and the second circuit end can be connected to an external power supply. Therefore, when the operating equipment needs to be charged, it can directly drive the first circuit end and the second circuit end to cooperate, which can improve the user experience of using the operating equipment; at the same time, when the first circuit end and the second circuit end of the charging device cooperate, the male pole piece can be pressed against the female pole piece under the action of the first elastic component, which can ensure the stability of the cooperation between the two, thereby ensuring the stability and safety of the charging process of unmanned vehicles and other operating equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 A schematic diagram of the structure of the charging device provided in an embodiment of the present invention when charging an unmanned vehicle;

[0031] Figure 2 A schematic diagram of the structure of a charging device provided by an embodiment of the present invention when the first circuit terminal is arranged on an unmanned vehicle;

[0032] Figure 3 A schematic structural diagram of a first circuit end of a charging device provided by an embodiment of the present invention;

[0033] Figure 4 A partially exploded schematic diagram of a first circuit end of a charging device provided by an embodiment of the present invention;

[0034] Figure 5 A schematic structural diagram of a second circuit end of a charging device provided in an embodiment of the present invention;

[0035] Figure 6 A schematic cross-sectional view of a second circuit end of a charging device provided by an embodiment of the present invention;

[0036] Figure 7 Schematic diagram of the partial structure of the second circuit terminal of the charging device provided in an embodiment of the present invention Figure 1 ;

[0037] Figure 8 Schematic diagram of the partial structure of the second circuit terminal of the charging device provided in an embodiment of the present invention Figure 2 ;

[0038] Figure 9 Schematic diagram of the partial structure of the second circuit terminal of the charging device provided in an embodiment of the present invention Figure 3 ;

[0039] Figure 10 A schematic diagram of the structure of a snap-on charging device provided by an embodiment of the present invention;

[0040] Figure 11 A schematic structural diagram of a housing of a charging device provided in an embodiment of the present invention;

[0041] Figure 12 A schematic structural diagram of a movable shell of a charging device provided in an embodiment of the present invention.

[0042] Icons: 100 - unmanned vehicle; 101 - vehicle frame; 103 - wheeled outrigger; 105 - power battery; 107 - control device; 109 - anti-collision beam; 110 - working device; 111 - charging platform; 113 - track; 200 - charging device; 201 - first circuit terminal; 203 - fixing housing; 205 - male terminal; 207 - male head; 209 - male pole piece; 211 - pivoting member; 213 - pivoting shaft; 215 - pivoting hole; 217 - pivoting slot; 219 - first limiting portion; 221 - second limiting portion; 223 - second circuit terminal; 225 - female end Sub-; 227-shell; 229-chamber; 231-female head; 233-female pole piece; 237-mounting slot; 239-spring buckle; 240-mounting post; 241-first elastic member; 242-fixing portion; 243-matching slot; 245-arc-shaped concave surface; 249-transition surface; 251-transition slot; 253-mounting cavity; 255-movable slot; 257-movable post; 260-movable shell; 261-second elastic member; 263-limiting slot; 265-limiting post; 267-first signal terminal; 269-mounting frame; 271-rubber ring; 273-matching cavity. DETAILED DESCRIPTION

[0043] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0044] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0045] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0046] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like indicate positions or locations based on the positions shown in the accompanying drawings, or the positions or locations in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0047] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0048] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0049] In related technologies, unmanned vehicles and other operating equipment need to be manually plugged into the charging interface for charging, which greatly reduces the user experience of the unmanned vehicles. In addition, the male terminals of unmanned vehicles and other operating equipment are easily separated from the female terminals during the charging process, making the stability and safety of the charging process not guaranteed.

[0050] In view of this, this embodiment provides a charging device. Part of the charging device is installed on unmanned vehicles and other operating equipment and connected to the power battery. The other part is installed externally and connected to an external power source. When the unmanned vehicle or other operating equipment needs to be charged, the first circuit terminal and the second circuit terminal can be used together, eliminating the need for manual charging and improving the user experience. At the same time, the charging device can ensure charging stability through the first elastic component during the charging process, thereby fully ensuring the stability and safety of the charging process. The following uses the charging of an unmanned vehicle as an example to describe the structure of the charging device in detail.

[0051] Figure 1 A schematic diagram of the structure of the charging device 200 provided in this embodiment when charging the unmanned vehicle 100; Figure 2 This is a schematic diagram of the structure when the first circuit end 201 of the charging device 200 provided in this embodiment is set on the unmanned vehicle 100. Figure 1 and Figure 2 In this embodiment, the charging device 200 is used to charge operating equipment such as an unmanned vehicle 100. The following description of this embodiment directly uses the unmanned vehicle 100 as the charging object to introduce the structure of the charging device 200 in detail. However, this does not mean that the charging device 200 can only charge the unmanned vehicle 100. It can also be used to charge drones and manned vehicles such as new energy vehicles. This will not be repeated in this embodiment.

[0052] Please refer to the Figure 1 and Figure 2 In this embodiment, the charging device 200 is specifically used to connect to an external power source to charge the power battery 105 of the unmanned vehicle 100. The unmanned vehicle 100 specifically includes a frame 101, four wheeled legs 103 arranged in pairs and spaced apart below the frame 101, a power battery 105 arranged above the frame 101, a control device 107, and an operating device 110. The wheeled legs 103 are used to provide operating power for the entire unmanned vehicle 100, and the power battery 105 provides kinetic energy for the entire unmanned vehicle 100, ensuring that it can move to the charging position for charging. The operating device 110 is electrically connected to the control device 107 and is used to complete various operating tasks under the control of the control device 107. For example, when the operating device 110 is a spraying device, the control device 107 can control the spraying device to complete the spraying operation of crops to improve agricultural operation efficiency.

[0053] In more detail, the charging device 200 specifically includes a first circuit end 201 and a second circuit end 223, wherein the first circuit end 201 is a male end, which can be mainly installed on the unmanned vehicle 100 and electrically connected to the control device 107 and the power battery 105; the second circuit end 223 is a female end, which is usually installed in a workplace with a charging platform 111, such as a farmland, to be electrically connected to the external power supply of the mains or other energy storage device, so that when the unmanned vehicle 100 needs to be charged, the unmanned vehicle 100 moves to the second circuit end 223 and cooperates with the first circuit end 201 and the second circuit end 223, thereby eliminating the need for manual charging for the unmanned vehicle 100, saving labor costs and improving charging efficiency.

[0054] As an optional solution, in this embodiment, the front and rear anti-collision beams 109 are provided on the frame 101 of the unmanned vehicle 100. The front anti-collision beam 109 is located outside the power battery 105, and the rear anti-collision beam 109 is located outside the operating device 110. The front and rear anti-collision beams 109 are used to form a protective structure at the front and rear of the frame 101 to ensure the safety of the unmanned vehicle 100 during driving, reduce the probability of damage to the unmanned vehicle 100 due to collisions, and thus increase the service life of the unmanned vehicle 100. At the same time, the first circuit terminal 201 is specifically located on the inner side of the front anti-collision beam 109 close to the power battery 105, so that the first circuit terminal 201 can also be protected by the anti-collision beam 109, thereby ensuring its service life and further ensuring charging quality and efficiency. Of course, in other embodiments, the first circuit terminal 201 can also be located at any position on the frame 101, so that the first circuit terminal 201 can be matched with the second circuit terminal 223 when charging is required. This is not limited in this embodiment.

[0055] Figure 3 A schematic structural diagram of the first circuit end 201 of the charging device 200 provided in this embodiment;

[0056] Figure 4 This is a partially exploded schematic diagram of the first circuit end 201 of the charging device 200 provided in this embodiment. Figure 3 and Figure 4 In this embodiment, the first circuit terminal 201 specifically includes a fixed housing 203 and a male terminal 205. The fixed housing 203 is used to be fixedly connected to the frame 101 of the unmanned vehicle 100. The male terminal 205 is disposed on the fixed housing 203 to engage or disengage with the second circuit terminal 223, thereby completing the automatic charging operation of the unmanned vehicle 100. At the same time, the male terminal 205 specifically includes a male head 207 and a male electrode piece 209. The male head 207 is connected to the fixed housing 203 and is located in a protruding position relative to the fixed housing 203. The male electrode piece 209 is disposed on the surface of the male head 207 to facilitate engagement with the second circuit terminal 223.

[0057] Figure 5 A schematic structural diagram of the second circuit end 223 of the charging device 200 provided in this embodiment;

[0058] Figure 6 A cross-sectional schematic diagram of the second circuit end 223 of the charging device 200 provided in this embodiment; Figure 7 A schematic diagram of the partial structure of the second circuit terminal 223 of the charging device 200 provided in this embodiment Figure 1 ; Figure 8 A schematic diagram of the partial structure of the second circuit terminal 223 of the charging device 200 provided in this embodiment Figure 2 ; Figure 9 A schematic diagram of the partial structure of the second circuit terminal 223 of the charging device 200 provided in this embodiment Figure 3 See Figures 5 to 9 In this embodiment, the second circuit end 223 includes a housing 227 and a female terminal 225. The housing 227 is mounted on the charging platform 111 of an agricultural power plant or other work site via a mounting bracket 269, and the female terminal 225 is fixed to the housing 227. The female terminal 225 specifically includes a female portion 231, a female electrode piece 233, and a first elastic component (not shown). The female electrode piece 233 is mounted to the female portion 231 via the first elastic component. The female electrode piece 233 is used to cooperate with the male electrode piece 209 to charge the power battery 105. The first elastic component is configured to hold the female electrode piece 233 against the male electrode piece 209 when the female electrode piece 233 and the male electrode piece 209 cooperate.

[0059] That is, when the unmanned vehicle 100 needs to charge, the unmanned vehicle 100 can drive the first circuit end 201 to move toward the charging platform 111. Once it reaches the charging platform 111, it can move to the second circuit end 223 and engage with the second circuit end 223, allowing the male electrode 209 to engage with the female electrode 233 to complete the circuit conduction, thereby facilitating the external power supply to charge the power battery 105. At the same time, during this process, under the action of the first elastic component, the first elastic component can always press the male electrode 209 against the female electrode 233, thereby ensuring the stability of the engagement between the two, and thus ensuring the stability and safety of the charging process of the unmanned vehicle 100 and other operating equipment.

[0060] It should be noted that, in this embodiment, in order to ensure that the first circuit end 201 provided on the unmanned vehicle 100 can accurately cooperate with the second circuit end 223 provided on the charging platform 111, two parallel and spaced tracks 113 can also be provided on the charging platform 111, so that the four wheeled legs 103 of the unmanned vehicle 100, which are opposite to each other, can move into the two tracks 113 respectively, so that after the unmanned vehicle 100 enters the track 113, the position of the first circuit end 201 is exactly opposite to the second circuit end 223, thereby ensuring that the two can cooperate accurately and stably, thereby improving work efficiency and quality.

[0061] Please refer again Figures 5 to 9 In this embodiment, a mounting slot 237 is formed on the female portion 231. The mounting slot 237 is a slot-shaped structure with an opening at one end. The first elastic component specifically includes a spring clip 239 and a first elastic member 241. The spring clip 239 is plugged into and mated with the mounting slot 237 and can be partially exposed from the mounting slot 237 so that the movement path of the spring clip 239 can be restricted by the mounting slot 237, thereby ensuring the stability of the spring clip 239. At the same time, the female pole piece 233 is provided in the portion of the spring clip 239 that is exposed from the mounting slot 237, so as to facilitate cooperation with the male pole piece 209 to charge the power battery 105 of the unmanned vehicle 100. Furthermore, the first elastic member 241 is a spring, and is specifically disposed within the mounting groove 237 and between the bottom of the mounting groove 237 and the snap 239. The first elastic member 241 is configured so that when the female pole piece 233 is mated with the male pole piece 209, the snap 239 drives the female pole piece 233 to abut against the male pole piece 209. Placing the first elastic member 241 within the mounting groove 237 ensures the safety of the first elastic member 241 by preventing it from being damaged by external forces. Furthermore, the mounting groove 237 limits the movement trajectory of the first elastic member 241, ensuring that the first elastic member 241 can always abut the female pole piece 233 against the male pole piece 209 when the male pole piece 209 and the female pole piece 233 are mated, thereby ensuring the stability and reliability of the mating between the two, and thus ensuring the safety and reliability of the charging operation.

[0062] In detail, in this embodiment, at least one set of mounting slot components is provided on the female portion 231, and each set of mounting slot components includes a plurality of mounting slot components along the vertical direction (ie Figure 5 Two mounting slots 237 are spaced apart and opposite each other (in the ab direction in FIG). That is, each mounting slot assembly includes two mounting slots 237 that are opposed to each other in the vertical direction. Each mounting slot 237 is equipped with a spring latch 239 and a first elastic member 241. Each first elastic member 241 extends in the same direction as the line connecting the two opposing mounting slots 237, meaning that each first elastic member 241 extends vertically. Furthermore, a mating slot 243 is formed between the two spring latches 239 corresponding to each mounting slot 237.

[0063] Correspondingly, please refer again to Figure 3 and Figure 4 In this embodiment, the male portion 207 is provided with multiple male electrode pieces 209, so that each female electrode piece 233 can mate with the male electrode piece 209 at the corresponding position on the male portion 207, thereby ensuring charging efficiency and meeting high-power charging requirements. Furthermore, because a mating slot 243 is formed between the two spring latches 239 of each mounting slot assembly, when the male portion 207 mates with the female portion 231, the male portion 207 can also be inserted into the mating slot 243, and each spring latch 239 can hold the female electrode piece 233 against the corresponding male electrode piece 209. That is, through such arrangement, on the one hand, the male portion 207 is plugged into the mating slot 243, making the mating of the male portion 207 and the female portion 231 more stable and reliable; on the other hand, since the two spring clips 239 are arranged up and down, the upper first elastic member 241 can drive the upper spring clip 239 to push the upper female pole piece 233 toward the upper male pole piece 209, while the lower first elastic member 241 can drive the lower spring clip 239 to push the lower female pole piece 233 toward the lower male pole piece 209, so that the entire male portion 207 is clamped by the upper and lower first elastic members 241, which can further ensure the stability and reliability of the mating of the male portion 207 and the female portion 231, thereby ensuring the safety and stability of the charging operation.

[0064] As an optional solution, in this embodiment, multiple groups of mounting slot assemblies are provided on the male head 207, and each group of mounting slot assemblies includes two mounting slots 237 spaced apart in the vertical direction. The multiple groups of mounting slot assemblies are spaced apart in the longitudinal direction of the male head 207 (i.e., Figure 5 cd direction in the middle) are arranged in sequence at intervals, so that the multiple matching grooves 243 formed between the multiple spring buckles 239 corresponding to the multiple groups of installation slot assemblies are also arranged in sequence along the length direction of the male part 207, and the multiple matching grooves 243 can be connected to form a long groove structure to cooperate with the male part 207, ensuring that each female electrode piece 233 is driven by the first elastic member 241 and the spring buckle 239 at the corresponding position to fit with the male electrode piece 209 at the corresponding position, thereby ensuring charging efficiency and charging quality.

[0065] Further preferably, please refer again Figure 3 and Figure 4In this embodiment, the male portion 207 is specifically configured as an axial structure, and a plurality of male pole pieces 209 are provided on the circumferential surface of the male portion 207. The plurality of male pole pieces 209 are specifically arranged in two rows around the circumference of the male portion 207, and each row includes four male pole pieces 209. Along the axis direction of the male portion 207, the length of the male pole pieces 209 at the two ends of the four male pole pieces 209 is smaller than the length of the two male pole pieces 209 in the middle of the four male pole pieces 209. Correspondingly, please refer again to Figures 7 to 9 The female portion 231 specifically includes ten groups of mounting slot assemblies, two of which are located at either end of the female portion 231. Four of the other eight groups of mounting slot assemblies form a set, forming two spaced sets between the two groups of mounting slot assemblies located at either end. Furthermore, the two groups of mounting slot assemblies located at either end of the female portion 231 respectively cooperate with the smaller male pole pieces 209 located at either end of the male portion 207, while the two groups located in the middle of the female portion 231 respectively cooperate with the longer male pole piece 209 located in the middle of the four male pole pieces 209, to effectively ensure a larger contact area between the male pole piece 209 and the female pole piece 233, thereby ensuring charging efficiency and stability. Of course, in other embodiments, the sizes of the multiple male pole pieces 209 can also be set to be the same, or the sizes of the male pole pieces 209 can also be set to correspond one-to-one with the female pole piece 233, which is not limited in this embodiment.

[0066] Figure 10 This is a schematic diagram of the structure of the spring buckle 239 of the charging device 200 provided in this embodiment. Figure 10 In this embodiment, the spring catch 239 is roughly bow-shaped, and a mounting post 240 is provided below the spring catch 239. The mounting post 240 is cylindrical in structure. The first elastic member 241 is sleeved outside the mounting post 240, with one end abutting the lower surface of the spring catch 239 and the other end abutting the bottom of the mounting slot 237 to ensure the stability of the first elastic member 241. Furthermore, the spring catch 239 has an arcuate concave surface 245 on its top, and the female pole piece 233 is fitted onto the surface of the arcuate concave surface 245. The two arcuate concave surfaces 245 corresponding to each set of mounting slot assemblies form an arcuate mating groove 243 coaxially arranged with the shaft-like structure. The mating groove 243 is roughly C-shaped, matching the shape of the shaft-like structure, thereby enabling insertion with the shaft-like structure.

[0067] That is, through the shaft-shaped setting of the male part 207 and the groove-shaped setting between the spring buckle 239 of the female part 231, when the male part 207 is matched with the female part 231, under the action of the first elastic member 241 on the upper and lower sides, the male part 207 can also be clamped by the matching groove 243, thereby further ensuring the stability of the male electrode piece 209 and the female electrode piece 233 when they are matched, and ensuring the safety of the charging operation.

[0068] In detail, in this embodiment, along the connecting direction of the two mounting slots 237 of each group of mounting slot assemblies, when the first elastic member 241 is freely extended, the radial dimension of the arc-shaped mating slot 243 is smaller than the radial dimension of the male head 207, so that the male head 207 can compress the first elastic member 241 when mating with the mating slot 243, thereby ensuring that when the male head 207 is mating with the mating slot 243, the female pole piece 233 can be pressed against the male pole piece 209 under the elastic action of the first elastic member 241, thereby ensuring the stability of the male pole piece 209 when mating with the female pole piece 233, and ensuring the safety of the charging operation.

[0069] As an optional solution, each mating slot 243 has a notch at its front end, allowing the male portion 207 to pass through the notch and plug into the mating slot 243, thereby ensuring stable charging. The spring catch 239 also includes a transition surface 249 positioned adjacent to the notch. This transition surface 249 is a flat surface, either inclined or horizontal; in this embodiment, it is flat. Furthermore, the transition surface 249 connects to the arcuate concave surface 245. A transition groove 251, which communicates with the mating slot 243, is formed between the two transition surfaces 249 corresponding to each mounting slot assembly. Along the line connecting the two mounting slots 237 in each mounting slot assembly, when the first elastic member 241 is freely extended, the width of the transition groove 251 and the radial dimension of the arcuate mating slot 243 are both smaller than the radial dimension of the male portion 207, and the width of the transition groove 251 is less than or equal to the diameter of the mating slot 243. This allows the male portion 207 to compress the first elastic member 241 when mated with both the transition groove 251 and the mating slot 243.

[0070] That is, on the one hand, through the setting of the transition groove 251, the male head 207 can play a transition role in the process of matching with the female head 231, stably compressing the first elastic member 241, so that the male head 207 can more easily drive the female pole piece 233 against the male pole piece 209 under the elastic action of the first elastic member 241 in the process of entering the matching groove 243, so that the multiple first elastic members 241 arranged above and below can jointly clamp the male head 207, thereby further ensuring the safety of the charging operation; on the other hand, in this embodiment, the width dimension of the transition groove 251 is preferably smaller than the diameter of the matching groove 243, and the male head 207 is restricted by the transition groove 251 after matching with the matching groove 243 and is not easy to fall out, thereby further ensuring the stability and reliability of the matching between the male head 207 and the female head 231, and ensuring the safety and reliability of the charging operation.

[0071] Please refer again Figures 7 to 9In this embodiment, the female head 231 is a semi-enclosed rectangular structure, and the female head 231 is also provided with a mounting cavity 253 with an opening. The entire mounting cavity 253 is roughly a "C"-shaped groove structure. The two mounting grooves 237 of each group of mounting groove assemblies are oppositely and spaced apart on the upper and lower opposite walls of the mounting cavity 253, and are both connected to the mounting cavity 253, so that when the male head 207 is matched with the female head 231, the male head 207 can pass through the opening and be plugged into the transition groove 251 and the matching groove 243 in turn, and finally, under the action of the first elastic member 241, the female pole piece 233 and the male pole piece 209 are stably matched. In addition, by setting the female portion 231 to the above-mentioned structure, the mounting groove 237 can be opened on the inner wall of the mounting cavity 253, and the installation positions of the first elastic member 241, the spring buckle 239 and the female electrode piece 233 can all be protected by the mounting cavity 253 to avoid direct exposure to the external environment, thereby ensuring the safety of the female electrode piece 233 and ensuring the service life of the charging device 200.

[0072] As an alternative, please refer again to Figure 10 In this embodiment, the spring latch 239 is provided with a movable post 257 extending along the length of the female portion 231. The movable post 257 is generally cylindrical in structure. A movable slot 255 is provided at a corresponding position on the wall of the mounting slot 237. The movable slot 255 extends in the vertical direction, allowing the movable post 257 to be plugged into and engaged with the movable slot 255 in the vertical direction. This allows the spring latch 239 to move downward in the vertical direction to compress the first elastic member 241 when mated with the male portion 207. Furthermore, when the male portion 207 is mated with the mating slot 243, the spring latch 239 can move upward in the vertical direction to force the female electrode piece 233 against the male electrode piece 209 under the action of the first elastic member 241, thereby ensuring stable charging operation. Of course, in other embodiments, the movable post 257 can also be provided on the wall of the mounting slot 237, and the movable slot 255 can also be provided on the side wall of the spring latch 239. This is not limited to this embodiment.

[0073] Please refer again to Figure 10 In this embodiment, the movable column 257 is specifically arranged at one end of the spring buckle 239 close to the transition surface 249, and is located on the side of the spring buckle 239 away from the transition surface 249, so that when the male head 207 is matched with the transition groove 251, the first elastic member 241 can be smoothly compressed. At the same time, when the male head 207 is matched with the matching groove 243, the spring buckle 239 is more likely to move upward in the vertical direction under the action of the first elastic member 241 to support the male head 207, thereby ensuring the stability of the charging effect.

[0074] It is also necessary to note that please refer again to Figure 9In this embodiment, the movable groove 255 is a groove with openings on the side and the top. Through such a setting, on the one hand, it is easy to process and also convenient for the spring buckle 239 to cooperate with the installation groove 237. On the other hand, since there is no blocking wall above the movable groove 255, it can also ensure that when the male part 207 cooperates with the matching groove 243, under the action of the first elastic member 241, the entire spring buckle 239 can better support the male part 207, thereby fully ensuring that the male pole piece 209 can be stably matched with the female pole piece 233.

[0075] Please refer again Figure 9 In this embodiment, the mounting post 240 of the spring latch 239 is specifically located at one end near the transition surface 249 and facing away from the transition surface 249. Furthermore, a fixing portion 242 is provided at the end of the spring latch 239 away from the transition surface 249. The fixing portion 242 is plate-shaped or block-shaped, and has a fixing hole defined therein. The fixing hole can be secured to the wall of the mounting slot 237 via a fastener such as a screw. This arrangement allows the spring latch 239 to move up and down at the end away from the fixing portion 242 under the action of the first elastic member 241 when the male portion 207 is mated with the female portion 231. The other end of the spring latch 239 can be secured to the wall of the slot via the fixing portion 242. This prevents the spring latch 239 from accidentally falling out of the mounting slot 237, ensuring the safety and stability of the spring latch 239 and, consequently, the service life of the entire charging device 200.

[0076] Figure 11 This is a schematic diagram of the structure of the housing 227 of the charging device 200 provided in this embodiment. Figure 6 and Figure 11 In this embodiment, the housing 227 of the second circuit terminal 223 further includes a chamber 229, which is provided with a second elastic component. The female portion 231 is movably disposed in the chamber 229 via the second elastic component. The second elastic component is configured to cushion and adjust the position of the female portion 231 when the female electrode piece 233 engages with the male electrode piece 209. Specifically, due to the provision of the second elastic component, when the male portion 207 and the female portion 231 mate, if the axis of the male portion 207 and the axis of the elongated groove structure formed by the plurality of mating grooves 243 of the female portion 231 are misaligned, the elastic action of the second elastic component allows the entire female portion 231 to rock left and right and / or forward and backward to adjust its axis, thereby aligning the two axes. This prevents damage to the charging device 200 caused by a hard collision between the male portion 207 and the female portion 231, further ensuring the safety of the charging process and extending the service life of the charging device 200.

[0077] In detail, Figure 12 This is a schematic diagram of the structure of the movable shell 260 of the charging device 200 provided in this embodiment. Figure 5 、 Figure 6 and Figure 12 In this embodiment, the second elastic component includes a movable shell 260 and a second elastic member 261. The movable shell 260 is movably disposed in the housing 227. The number of the second elastic member 261 is one, and the second elastic member 261 is a spring. The second elastic member 261 moves in the direction in which the male head 207 and the female head 231 cooperate (i.e. Figure 5 The second elastic member 261 compresses when the male portion 207 and the female portion 231 mate, causing the male portion 207 to mate with the female portion 231. The second elastic member 261 compresses under the force of the male portion 207 when the male portion 207 mates with the female portion 231, allowing the female portion 231 to adjust its axis to align with the axis of the male portion 207, thereby ensuring a stable fit and completing the charging process.

[0078] It should be noted that in order to ensure that the female head 231 and the male head 207 can effectively adjust their own axes under the action of the second elastic member 261, in this embodiment, the second elastic member 261 is specifically arranged between the middle position of the movable shell 260 and the middle position of the rear wall of the shell 227, so that when the female head 231 and the male head 207 are matched, no matter which side of the female head 231 is subjected to a greater force from the male head 207, the second elastic member 261 located in the middle position can be used to align the axis for adjustment, thereby fully ensuring the safety and reliability of the charging operation.

[0079] It should also be noted that, in other embodiments, the number of the second elastic members 261 can also be set to multiple, and the multiple second elastic members 261 are arranged at intervals along the length direction of the shell 227, and each second elastic member 261 is connected to the movable shell 260 at one end and connected to the rear wall of the shell 227 at the other end, thereby fully ensuring that the female head 231 and the male head 207 can be stably matched.

[0080] As an alternative, please refer again to Figures 5 to 8 as well as Figure 11 and Figure 12In this embodiment, the top and bottom walls of the housing 227 are each provided with a limiting groove 263. The direction of the limiting groove 263 is the same as the extension direction of the second elastic member 261, which is also the direction in which the male portion 207 and the female portion 231 mate. Correspondingly, the top and bottom ends of the movable housing 260 are each provided with a limiting post 265. The limiting post 265 is cylindrical and can pass through the limiting groove 263 at the corresponding position and extend to limit and guide the movement of the movable housing 260 and the female portion 231, ensuring that the female portion 231 can stably mate with the male portion 207, thereby ensuring the stability of the charging operation and, in turn, ensuring the charging efficiency and quality. Of course, in other embodiments, the limiting groove 263 can also be provided on the movable housing 260, and the limiting post 265 can also be provided at the corresponding position of the housing 227 to ensure that the two can stably mate. This embodiment is not limited thereto.

[0081] It should be noted that in other embodiments, it is also possible to provide only the limiting groove 263 on the top wall, provide a slide rail on the bottom wall, and provide a pulley or sliding post at a corresponding position on the movable shell 260 to ensure smoother and more regular movement of the movable shell 260. Of course, it is also possible to provide only the limiting groove 263 on the bottom wall, which will not be described in detail in this embodiment.

[0082] It should also be noted that, in this embodiment, a rubber ring 271 can be provided on the limiting column 265 as needed. The rubber ring 271 is disc-shaped and fits between the shell 227 and the movable shell 260 to prevent the movable shell 260 from rubbing and wearing the shell 227 during movement, thereby ensuring the service life of the charging device 200.

[0083] Further optionally, in this embodiment, the second circuit end 223 also includes a protective cover (not shown), which is provided on one side of the housing 227 near the opening of the mounting cavity 253, and is pivotally connected or buckled with the housing 227, and has an open position for opening the mounting cavity 253 and a closed position for closing the opening of the mounting cavity 253. When the protective cover is in the open position, the first circuit end 201 and the second circuit end 223 can cooperate to complete the charging operation. When the protective cover is in the closed position, the first circuit end 201 cannot cooperate with the second circuit end 223 through the mounting cavity 253. The provision of the protective cover can ensure the safety and hygiene of the various components of the female head 231 when the unmanned vehicle 100 is not performing a charging operation, prevent foreign objects from touching it, and prevent foreign objects from entering it, thereby ensuring that the first circuit end 201 and the second circuit end 223 can cooperate safely and reliably during charging, thereby ensuring charging efficiency and quality.

[0084] Furthermore, the second circuit terminal 223 also includes a servo, which is fixed to the housing 227. One side of the protective cover is pivotally connected to the housing 227, and the other side of the protective cover is transmission-connected to the servo. The servo is configured to drive the protective cover to rotate relative to the housing 227 to close or open the opening of the mounting cavity 253. This allows the protective cover to be driven to the open position when the unmanned vehicle 100 needs to be charged.

[0085] In addition, it should be noted that, in this embodiment, the servo is also electrically connected or signal-connected to the control device 107 of the unmanned vehicle 100. When the unmanned vehicle 100 needs to be charged, the servo can be controlled by the control device 107 to move to the open position, thereby facilitating the charging operation of the unmanned vehicle 100 and effectively improving the efficiency of the charging operation.

[0086] Further, please refer again to Figures 5 to 7 In this embodiment, the female portion 231 is further provided with a first signal terminal 267, which is protruding from the side wall of the mounting cavity 253. A second signal terminal is provided at a corresponding position of the male portion 207. The second signal terminal can be selected as a contact arranged circumferentially around the male portion 207. Through the arrangement of the first signal terminal 267 and the second signal terminal, when the male electrode piece 209 and the female electrode piece 233 are in place, the two can mate and send a signal to the control device 107. Therefore, under the control of the control device 107, the male portion 207 and the female portion 231 are charged through the external power supply only after they are in place, thereby ensuring the safety and reliability of the charging operation.

[0087] Please refer again Figure 3 and Figure 4 In order to ensure that the male head 207 and the female head 231 can adaptably adjust their positions when they are mated so that their axes can be aligned, in this embodiment, the male head 207 is pivotally connected to the fixed shell 203 through two pivot members 211, so that the male head 207 can rotate around the pivot axis 213, thereby adjusting its position to better cooperate with the female head 231, thereby ensuring the safety of the charging operation.

[0088] Specifically, in this embodiment, pivot holes 215 are formed at both ends of the fixed shell 203. The two ends of the male portion 207 are pivotally connected to the corresponding pivot holes 215 via a pivot shaft 213 through a pivot member 211. The axis of the pivot shaft 213 is parallel to the axis of the male portion 207, so that the male portion 207 can rotate around the pivot shaft 213, thereby better matching with the female portion 231.

[0089] As an optional solution, two pivot slots 217 are provided at both ends of the fixed housing 203, corresponding to the two pivot holes 215. The pivot slots 217 are slot-like structures with openings at both the front and side portions. The pivot holes 215 are located at the bottom of the pivot slots 217 and communicate with the corresponding pivot slots 217. Each pivot member 211 is inserted into and passes through the corresponding pivot slot 217, pivotally connected to the pivot hole 215 via a pivot axis 213. The provision of the pivot slots 217 allows the entire pivot member 211 to move within the pivot slots 217, thereby ensuring the safety and stability of the pivot member 211. This allows the male portion 207 to automatically adjust its position according to the position of the female portion 231, while also maintaining its compactness and stability, thereby ensuring normal charging operation.

[0090] Further, optionally, a first limiting portion 219 and a second limiting portion 221 are respectively formed on the top and bottom walls of the pivot slot 217 adjacent to the front end opening. The first limiting portion 219 and the second limiting portion 221 are located on either side of the pivot member 211 and are used to limit the rotation angle of the pivot member 211. That is, the first limiting portion 219 limits the upward rotation angle of the male portion 207 driven by the pivot member 211, while the second limiting portion 221 limits the downward rotation angle of the male portion 207 driven by the pivot member 211. This limits the range of rotation of the male portion 207 about the pivot axis 213, thereby ensuring the stability of the male portion 207 and preventing damage due to excessive rotation. Of course, in this embodiment, the first limiting portion 219 and the second limiting portion 221 can also be provided on the fixed shell 203, or the first limiting portion 219 and the second limiting portion 221 are provided on the fixed shell 203 and the slot wall of the pivot slot 217 to ensure that the movement angle of the male head 207 can be smoothly limited. This is not limited in this embodiment.

[0091] It should be noted that, in this embodiment, the entire male head 207 can also be set as a hollow structure, and a perforation can be opened inside the pivot part 211, so that the lead of the male electrode 209 can be led to the power battery 105 and the control device 107 through the hollow structure and the perforation, thereby reducing the exposure of the lead and ensuring the safety and compactness of the entire charging device 200.

[0092] The following describes in detail the installation process, working principle, and beneficial effects of the charging device 200 provided in an embodiment of the present invention:

[0093] When assembling the first circuit end 201 of the charging device 200, the male electrode piece 209 can be first arranged on the circumference of the male portion 207, and then the lead of the male electrode piece 209 can be led out through the hollow structure of the male portion 207; then, the two ends of the male portion 207 are respectively matched with the two pivot members 211, and the lead of the male electrode piece 209 is led out through the through-holes of the pivot members 211; then, the male portion 207 is pivotally matched with the two pivot holes 215 at the two ends of the fixed shell 203 through the pivot members 211 and the pivot shaft 213 in a one-to-one correspondence; finally, the fixed shell 203 is installed on the frame 101 of the unmanned vehicle 100, and the lead is led out to connect to the power battery 105 and the control device 107.

[0094] When assembling the second circuit end 223 of the charging device 200, the spring clip 239 and the first elastic member 241 can be first set in the installation groove 237, and the mother electrode piece 233 can be set above the spring clip 239 to form the female terminal 225. Then, the female terminal 225 and the movable shell 260 are installed in the shell 227 through the second elastic member 261 to form the second circuit end 223; then, the shell 227 is fixedly connected to the mounting bracket 269 on the charging platform 111 and connected to an external power supply.

[0095] After the charging device 200 is assembled, the charging process of the unmanned vehicle 100 specifically includes the following steps:

[0096] S1: Detect the power level of the power battery 105 through the control device 107; S2: Obtain the distance X between the unmanned vehicle 100 and the nearest second circuit terminal 223. The distance X can be calculated according to the distance of the operation trajectory or the straight-line distance; S3: Determine whether the remaining power of the power battery 105 is equal to the power required for the unmanned vehicle 100 to move the distance X. If so, execute S4; if not, continue the operation; S4: The control device 107 controls the unmanned vehicle 100 to move to the nearest second circuit terminal 223, controls the servo to drive the protective cover to rotate to open the opening of the installation cavity 253, and controls the unmanned vehicle 100 to move to the track 113 to mate the female terminal 225 with the male terminal 205; S5: The control device 107 detects whether the first signal terminal 267 and the second signal interface on the female terminal 225 and the male terminal 205 are connected. If so, execute S6; S6: The control device 107 controls the charger to charge the power battery 105.

[0097] During the above process, when male terminal 205 and female terminal 225 mate, the first elastic component forces male electrode piece 209 against female electrode piece 233, ensuring stable engagement between the two, thereby ensuring stable and safe charging of operating equipment such as unmanned vehicle 100. Simultaneously, the second elastic component ensures easy alignment of the axes of the two, thereby ensuring reliable engagement and ensuring charging efficiency and quality.

[0098] To sum up, the embodiments of the present invention provide a charging device 200 with high charging stability, high charging efficiency, long service life, and safety and reliability, which can meet the needs of automatic charging of operating equipment such as unmanned vehicles 100, thereby greatly improving the user experience of using operating equipment such as unmanned vehicles 100.

[0099] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A charging device for connecting to an external power source to charge a power battery of an operating device, characterized in that: The charging device comprises: A first circuit end, used for connecting to the power battery, includes a male terminal, wherein the male terminal includes a male head and a male electrode sheet provided on the male head; The second circuit end is used to connect to the external power source, including a female terminal, the female terminal including a female head, a female pole piece and a first elastic component, and the female pole piece is mounted on the female head through the first elastic component; The female pole piece is used to cooperate with the male pole piece to charge the power battery, and the first elastic component is configured to hold the female pole piece against the male pole piece when the female pole piece cooperates with the male pole piece; The female head portion is provided with a mounting slot; the first elastic component includes a spring buckle and a first elastic member; the female head portion is provided with at least one group of mounting slot components, and each group of the mounting slot components includes two mounting slots that are opposite and spaced apart, each mounting slot is equipped with a spring buckle and a first elastic member, and the extension direction of each first elastic member is the same as the connecting direction of the two opposite mounting slots, and a matching slot is formed between the two spring buckles corresponding to each group of mounting slots; The male head is arranged in an axial structure, and the male pole piece is arranged on the surface of the male head; the spring buckle includes an arc-shaped concave surface, and the female pole piece is arranged in affixed relation to the arc-shaped concave surface. The two arc-shaped concave surfaces corresponding to each group of the mounting slot assemblies form an arc-shaped mating groove arranged coaxially with the axial structure to be plugged into the axial structure.

2. The charging device according to claim 1, wherein: The spring clip is plugged into the mounting slot and can be partially exposed from the mounting slot, and the mother pole piece is arranged at the portion of the spring clip exposed from the mounting slot; the first elastic member is arranged in the mounting slot and is located between the bottom of the mounting slot and the spring clip, and the first elastic member is configured to enable the spring clip to drive the mother pole piece to resist the male pole piece when the mother pole piece and the male pole piece are matched.

3. The charging device according to claim 2, wherein: A plurality of male pole pieces are provided on the male portion, and the male portion can be plugged into the matching slot so that each of the spring buckles can hold the female pole piece against the male pole piece at the corresponding position.

4. The charging device according to claim 3, wherein: Along the connecting line of the two mounting slots of each group of mounting slot assemblies, when the first elastic member is freely extended, the radial dimension of the arc-shaped mating slot is smaller than the radial dimension of the male portion, so that the male portion can compress the first elastic member when mating with the mating slot; or, The mating groove has a notch, and the male head passes through the notch and is plugged into the mating groove; the spring buckle also includes a transition surface arranged adjacent to the notch, and a transition groove connected to the mating groove is formed between the two transition surfaces corresponding to each group of the mounting groove components. Along the connecting direction of the two mounting grooves of each group of the mounting groove components, when the first elastic member is freely extended, the width dimension of the transition groove and the radial dimension of the arc-shaped mating groove are both smaller than the radial dimension of the male head, and the width dimension of the transition groove is less than or equal to the diameter of the mating groove, so that the male head can compress the first elastic member when mating with the transition groove and the mating groove.

5. The charging device according to claim 3, wherein: The female portion is further provided with a mounting cavity having an opening, and the two mounting slots of each group of the mounting slot assemblies are oppositely and spaced apart from each other on two opposite walls of the mounting cavity, and are both in communication with the mounting cavity; When the male portion is mated with the female portion, the male portion can pass through the opening and be plugged into the mating groove.

6. The charging device according to claim 2, wherein: A movable groove is provided on one of the spring buckle and the groove wall of the installation groove, and the extension direction of the movable groove is the same as the extension direction of the first elastic member; a movable column is provided on the other of the spring buckle and the groove wall of the installation groove, and the movable column is plugged into and matched with the movable groove.

7. The charging device according to any one of claims 1 to 6, characterized in that: The second circuit end also includes a shell and a second elastic component, the shell has a cavity, the female head is movably arranged in the cavity through the second elastic component, and the second elastic component is configured to buffer and adjust the position of the female head when the female pole piece is matched with the male pole piece.

8. The charging device according to claim 7, characterized in that: The second elastic component includes a movable shell and a second elastic member. The movable shell is movably arranged in the shell. The second elastic member extends along the direction in which the male head and the female head cooperate with each other, and one end of the second elastic member is connected to the shell and the other end is connected to the movable shell. The female head is fixedly connected to the movable shell.

9. The charging device according to claim 8, characterized in that: One of the shell and the movable shell is provided with a limiting groove extending along the direction in which the male head and the female head cooperate, and the other of the shell and the movable shell is provided with a limiting column, which is plugged into and cooperates with the limiting groove.

10. The charging device according to any one of claims 1 to 6, characterized in that: The first circuit end also includes a fixed shell and two pivot parts. The fixed shell is used to be fixedly connected to the operating equipment. Pivot holes are provided at both ends of the fixed shell. The two ends of the male head are pivotally connected to the pivot holes at corresponding positions through one of the pivot parts respectively.

11. The charging device according to claim 10, characterized in that: Two pivot grooves corresponding to the two pivot holes are also formed at both ends of the fixed shell. The pivot grooves are connected to the pivot holes at the corresponding positions. Each pivot member is inserted into the pivot groove at the corresponding position and passes through the pivot groove at the corresponding position to be pivotally connected to the pivot hole.

12. The charging device according to claim 11, characterized in that: A first limiting portion and a second limiting portion are further provided on the fixed shell and / or the pivot slot. The first limiting portion and the second limiting portion are respectively located on both sides of the pivot member and are used to limit the rotation angle of the pivot member.

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