Charging plug and charging device

Abstract

The invention discloses a charging plug and a charging device, and relates to the technical field of charging devices.The charging plug comprises a main body structure, a first control assembly and a second control assembly; the main body structure comprises a shell and an electric connection main body, an installation cavity is formed in the shell, the electric connection main body is installed in the installation cavity and used for connecting a charging cable and a charging port, and a containing groove is formed in the surface of the shell; the first control assembly is partially arranged in the accommodating groove, is provided with a first control part extending out of the mounting cavity and is used for controlling the charging plug to be connected with an external charging vehicle; the second control assembly is at least partially arranged in the containing groove, is provided with a second control part extending out of the mounting cavity and is used for controlling the charging cable to be wound and unwound, and the first control part and the second control part are located at different positions. According to the invention, the dynamic adjustment of the length of the charging cable is realized, the problem that the cable is too long to wind or too short to be connected is solved, and the universality of the charging equipment and the convenience of user operation are improved.

Description

Technical Field

[0001] This invention relates to the field of charging device technology, and in particular to a charging plug and a charging device. Background Technology

[0002] In recent years, electric vehicles and charging equipment have developed rapidly. As a core component connecting charging piles and vehicles, the ease of use of charging guns directly affects the charging experience. Most charging guns on the market use a fixed-length cable design, meaning the cable length is predetermined during manufacturing and cannot be adjusted during use.

[0003] However, in actual charging, due to significant differences in parking environments, charging pile layouts, and vehicle charging port locations, the distance between the charging pile and the vehicle's charging port varies during charging. If the cable is too short, it becomes difficult to connect when the distance between the charging pile and the vehicle's charging port is far; if the cable is too long, it is prone to tangling, dragging, and wear, increasing storage difficulty and potentially posing safety hazards. Therefore, a fixed cable length cannot accommodate complex usage scenarios, limiting the versatility and flexibility of charging equipment. Summary of the Invention

[0004] The main objective of this invention is to provide a charging plug and charging device that solves the problem of the inability to adjust the cable length of existing charging guns.

[0005] To achieve the above objectives, the present invention provides a charging plug for connecting a charging cable, the charging plug comprising: The main structure includes a housing and an electrical connection body. An installation cavity is formed inside the housing. The electrical connection body is installed in the installation cavity and is used to connect the charging cable and an external charging port. A receiving groove is formed on the surface of the housing. A first control component is partially disposed within the receiving groove and has a first control part extending out of the mounting cavity to the outside. The first control part is used to control the charging plug to connect to an external charging vehicle or charging equipment. The second control component is at least partially disposed within the receiving groove and has a second control part extending out of the mounting cavity to the outside. The second control component is used to control the retraction and extension of the charging cable. The first control unit and the second control unit are located in different positions.

[0006] In one embodiment of the present invention, the main structure further includes a cover plate, the cover plate, the first control unit and the second control unit cooperate to seal the receiving groove.

[0007] In one embodiment of the present invention, the second control component further includes a circuit controller, the circuit controller including a first control circuit and a second control circuit, the first control circuit being used to control the retraction of the charging cable, and the second control circuit being used to control the release of the charging cable; The second control unit is movably disposed relative to the circuit controller, and the second control unit has a first position, a second position, and a third position relative to the circuit controller; When the second control unit moves to the first position, the second control unit triggers the first control circuit to turn on; when the second control unit moves to the second position, the second control unit triggers the second control circuit to turn on; when the second control unit moves to the third position, both the first control circuit and the second control circuit are in the off state.

[0008] In one embodiment of the present invention, the second control component includes a second control unit, and the driving element is a lever; The first control component includes a connector and a rotating shaft. One end of the connector forms the first control part, and the other end forms a snap-fit ​​for connecting to an external charging vehicle / charging device. The connector is rotatably connected to the housing via the rotating shaft, and the lever is rotatably mounted on the rotating shaft.

[0009] In one embodiment of the present invention, the connector has an avoidance channel, and the rotating shaft and the lever are disposed in the avoidance channel.

[0010] In one embodiment of the present invention, the cover plate has an opening, and the lever extends from the opening to the outside.

[0011] In one embodiment of the present invention, the second control component further includes a first elastic element, a second control unit, and a circuit controller, wherein the first elastic element is disposed between the second control unit and the circuit controller; The second control unit is movably disposed relative to the circuit controller (32), and the second control unit has a first position, a second position and a third position relative to the circuit controller (32); When the second control unit moves to the first position, the second control unit triggers the first control circuit to turn on; when the second control unit moves to the second position, the second control unit triggers the second control circuit to turn on; when the second control unit moves to the third position, both the first control circuit and the second control circuit are in the off state. The first elastic element is used to provide a restoring force for the lever to move from the first position or the second position toward the third position.

[0012] In one embodiment of the present invention, the first elastic element is a silicone element, and two elastic protrusions are provided on the surface of the silicone element, and conductive sheets are provided on the side of the two elastic protrusions facing the micro switch. When the lever is in the first position, the lever presses against an elastic protrusion, causing a conductive sheet to be electrically connected to the first control circuit, and the first control circuit is in a conducting state. When the lever is in the second position, the lever presses against another elastic protrusion, causing another conductive sheet to be electrically connected to the second control circuit, and the second control circuit is in a conducting state.

[0013] In one embodiment of the present invention, the cover plate is provided with a limiting hole, and the second control unit is rotatably limited within the limiting hole.

[0014] In one embodiment of the present invention, the main structure further includes a base, which is disposed in the receiving groove, and the first control component and the second control component are both mounted on the base.

[0015] In one embodiment of the present invention, the housing is a one-piece molded structure.

[0016] The present invention also proposes a charging device, which includes a charging cable, a charging host, and a charging plug as described above. The two ends of the charging cable are connected to the charging plug and the charging host, respectively.

[0017] The present invention proposes a charging plug for connecting charging cables. The charging plug includes a main structure, a first control component, and a second control component. The main structure includes a housing and an electrical connection body. An installation cavity is formed inside the housing, and the electrical connection body is installed within the installation cavity and used to connect the charging cable to an external charging port. A receiving groove is formed on the surface of the housing, within which a portion of the first control component and at least a portion of the second control component are disposed. The first control component has a first control part extending from the installation cavity to the outside, used to control the connection of the charging plug to an external charging vehicle or charging device. The second control component has a second control part extending from the installation cavity to the outside, used to control the extension and retraction of the charging cable. By integrating the second control component, the charging cable can extend or retract into the charging plug under the control of the second control component, meaning the length of the charging cable is adjustable. This allows the charging plug to be used in different application scenarios, improving the versatility and flexibility of the charging device. By placing the first and second control parts in different positions, accidental contact with the first control part is avoided when driving the second control part to control the extension and retraction of the cable, thereby improving the reliability and safety of the charging plug. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the structure of an embodiment of the charging plug provided by the present invention; Figure 2 for Figure 1 Exploded view of the charging plug; Figure 3 A schematic diagram of the connector in the charging plug provided by the present invention; Figure 4 A schematic diagram of the lever in the charging plug provided by the present invention; Figure 5 A top view of the charging plug provided by the present invention; Figure 6 When the lever is in a certain position in this invention, the charging plug is along Figure 5 Sectional view at point AA; Figure 7 When the lever is in another position in this invention, the charging plug is along Figure 5 Sectional view at point AA; Figure 8 When the lever is in another position in this invention, the charging plug is along Figure 5 Sectional view at point AA; Figure 9 The charging plug provided by the present invention is along Figure 5 Sectional view at point BB.

[0020] Explanation of icon numbers: 10. Main structure; 11. Shell; 111. Mounting cavity; 112. Receiving groove; 12. Electrical connection body; 13. Base; 14. Cover plate; 141. Limiting hole; 20. First control component; 21. Connector; 211. Connecting end; 212. Rotating shaft; 213. Clearance channel; 214. Pressing plate; 22. Second elastic element; 23. Micro switch; 30. Second control component; 31. Lever; 311. Abutment part; 312. Arc-shaped mating surface; 313. Limiting shaft; 314. Locking protrusion; 32. Circuit controller; 33. First elastic element; 331. Elastic protrusion.

[0021] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0023] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0024] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0025] This invention proposes a charging plug for connecting a charging cable.

[0026] Combination Figure 1 and Figure 2 As shown, in one embodiment of the present invention, the charging plug includes a main structure 10, a first control component 20, and a second control component 30. The main structure 10 includes a housing 11 and an electrical connection body 12. An installation cavity 111 is formed inside the housing 11. The electrical connection body 12 is installed in the installation cavity 111 and is used to connect the charging cable and an external charging port. A receiving groove 112 is formed on the surface of the housing 11. The first control component 20 is partially disposed in the receiving groove 112 and has a first control part extending out of the installation cavity 111 to the outside. The first control part is used to control the connection of the charging plug to an external charging vehicle or charging equipment. The second control component 30 is at least partially disposed in the receiving groove 112 and has a second control part extending out of the installation cavity 111 to the outside. The second control component 30 is used to control the retraction and extension of the charging cable. The first control part and the second control part are located in different positions.

[0027] In this embodiment, the housing 11 can be an integral injection-molded structure of engineering plastic (such as PC / ABS), thereby improving the waterproof and dustproof effect of the housing 11 and the ease of assembly; the housing 11 can also be configured as at least two parts, such as a front housing and a rear housing, or a left housing and a right housing, and the at least two parts of the housing 11 structure can be assembled to form the housing 11 by means of detachable connection such as snap-fit, threaded connection or interference fit, or the housing 11 can also be assembled to form the housing 11 by means of non-detachable connection such as welding or adhesive bonding.

[0028] The mounting cavity 111 formed inside the housing 11 is used to accommodate the electrical connection body 12 and some mechanical structures. The electrical connection body 12 includes electrical connection terminals, circuit boards, and other circuit structures that enable the charging host to charge and discharge external vehicles. The top surface of the housing 11 is recessed downward to form a receiving groove 112, which is partially connected to the mounting cavity 111.

[0029] The first control component 20 may include structures such as hooks, pins, and electronic switches, as well as related mating structures. When the charging plug is inserted into the charging port of an external vehicle, the first control component 20 is used to control the mechanical and electrical connection between the charging plug and the external vehicle. The first control component 20 can be detachably connected to the external vehicle through snap-fit ​​connections, plug-in connections, or other methods. The first control unit may be a pressing plate 214, a button, a slider, or other operating components.

[0030] The second control component 30 is used to realize the winding and unwinding of the charging cable. Specifically, the second control unit can be a lever 31, a button, or a slider, etc., and cooperates with the circuit controller 32 or other components equipped with switching circuits or sensors to control the motor, cylinder, and other power components to drive the winding and unwinding of the charging cable.

[0031] By integrating the second control component 30 into the receiving groove 112 of the housing 11, the length of the charging cable can be dynamically adjusted according to actual needs, effectively solving the problem of cables being too long and tangled or too short and unable to connect due to different parking positions, thus improving the versatility of the charging device and the convenience of user operation. Simultaneously, the second control component 30 and the first control component 20 are disposed within the receiving groove 112 of the housing 11 to isolate them from the electrical connection components located in the mounting cavity 111 of the housing 11, thereby improving the ease of assembly and disassembly of the charging plug components. Furthermore, the first control unit and the second control unit are positioned in different locations, meaning their projection areas on the surface of the housing 11 do not overlap, thus separating the first and second control units. Therefore, when driving the second control unit to retract or extend the cable, accidental contact with the first control unit can be minimized, thereby improving the safety and reliability of the charging plug.

[0032] Combination Figures 1 to 3As shown, in one embodiment of the present invention, the main structure 10 further includes a cover plate 14, and the cover plate 14, the first control unit and the second control unit cooperate to seal the receiving groove 112.

[0033] In this embodiment, the cover plate 14 can be made of the same material as the housing 11 and is fixedly attached to the receiving groove 112 of the housing 11 by means of snap-fit ​​connection, interference fit connection or other methods. The shape of the cover plate 14 matches the opening contour of the receiving groove 112, and its edge is provided with a downward extending rim, which forms a nested fit with the side wall of the receiving groove 112 to ensure a stable installation and uniform gap.

[0034] The first control unit can be a pressing structure for unlocking the charging plug and connecting it to an external vehicle, or it can include both the pressing structure and other structures that cooperate with or connect to the pressing structure. The first control unit, the second control unit, and the cover plate 21 cooperate to seal the receiving groove 112, preventing dust, moisture, etc. from entering the charging plug and effectively improving the protection level of the charging plug. At the same time, the first and second control units are exposed on the outside of the housing 11, which facilitates the user's unlocking and locking operations. In addition, when it is necessary to assemble or repair the first control component 20 or the second control component 30, the components located in the receiving groove 112 can be exposed simply by opening the cover plate 14, which also improves the convenience of assembling and maintaining the first control component 20 and the second control component 30. Furthermore, the first control unit, the second control unit, and the upper surface of the cover plate 14 are flush with and smoothly transition to the outer surface of the housing 11, forming a flat and beautiful operating surface, which improves the aesthetics of the charging plug.

[0035] Combination Figures 1 to 3 As shown, in one embodiment of the present invention, the first control component 20 includes a connector 21, one end of which is a connector end 211, and the other end is formed with a second control part, which is a pressing plate 214. The connector end 211 extends into the mounting cavity 111 for connecting an external charging vehicle. The pressing plate 214 and the cover plate 14 surround and seal the receiving groove 112.

[0036] In this embodiment, the exemplary connector 21 is connected to an external vehicle via a snap-fit ​​mechanism, where the connecting end 211 acts as a hook. The hook includes a structure with a bevel or hook shape. The connecting end 211 extends from the mounting cavity 111 inside the housing 11 and directly engages with the locking mechanism on the electric vehicle charging socket. When it is necessary to remove the connector, the user presses the pressing plate 214 at the other end of the hook, causing the connecting end 211 to lift, thus unlocking the connector 21 from the external vehicle.

[0037] The side of the pressing plate 214 furthest from the receiving groove 112 is the pressing surface, allowing the user to unlock the charging head from external vehicles by pressing the pressing plate 214. Further, the pressing surface is designed with anti-slip textures or grooves to facilitate finger pressing. The pressing plate 214 is located within the receiving groove 112 and is adjacent to or in contact with the upper cover. The shape of the pressing plate 214 is adapted to the opening contour of the receiving groove 112. In the assembled state, the pressing plate 214 and the upper cover are joined together to form a structure that seals the opening of the receiving groove 112.

[0038] In addition, the first control component 20 also includes a micro switch 23, which is located on the side of the press plate 214 facing the bottom of the receiving slot 112. The micro switch 23 is electrically connected to the control system of the charging host. When the user presses the press plate 214 to engage the vehicle with the hook, the press plate 214 will simultaneously press the micro switch 23, at which point the charging host will allow a large current to be connected to start charging.

[0039] Combination Figure 3 As shown, in one embodiment of the present invention, the connector 21 is provided with a rotating shaft 212 and is rotatably connected to the housing 11 through the rotating shaft 212. The connector end 211 swings relative to the pressing plate 214 to connect or disconnect from an external vehicle.

[0040] In this embodiment, the connector 21 can be directly rotatably connected to the housing 11 via a rotating shaft 212. In this case, a rotating hole is formed on the inner sidewall of the housing 11 receiving groove 112, and both ends of the rotating shaft 212 are rotatably inserted into the rotating hole to achieve a rotatable connection between the connector 21 and the housing 11. Alternatively, a base 13 can be provided at the bottom of the receiving groove 112, and the connector can be indirectly rotatably connected to the housing 11 via the base 13. In this case, a rotating hole is formed on the base 13, and both ends of the rotating shaft 212 are rotatably inserted into the rotating hole to achieve a rotatable connection between the connector 21 and the base 13.

[0041] Of course, when a base 13 is provided, a pair of upwardly protruding support arms can also be provided on the base 13, with a coaxial rotating groove at the top of each support arm. The two ends of the rotating shaft 212 are pressed into the two rotating grooves respectively, achieving a rotating connection while also ensuring that the rotating shaft 212 is stably held within the rotating groove, forming a solid support. Furthermore, limiting blocks can be provided at both ends of the rotating shaft 212, with the size of the limiting blocks larger than the size of the rotating shaft 212. When the rotating shaft 212 is embedded in the rotating groove, the two limiting blocks are located on the outer sides of the two rotating grooves, respectively. The limiting blocks limit the rotation of the rotating shaft 212 along its axial direction, further improving the stability of the rotating shaft 212 within the rotating groove.

[0042] The rotating shaft 212 is located between the connecting end 211 and the pressing plate 214, so that the connecting end 211 can swing relative to the pressing plate 214 with the rotating shaft 212 as the fulcrum. When the user applies downward pressure to the pressing plate 214, it can drive the connecting end 211 to move upward. This swinging process realizes the connection or disconnection of the connector 21 from the external vehicle charging port.

[0043] Combination Figure 2 , Figures 5 to 8 As shown, in one embodiment of the present invention, the first control component 20 further includes a second elastic element 22, which elastically abuts against the housing 11 and the pressing plate 214 respectively.

[0044] In this embodiment, the second elastic element 22 can be a spiral compression spring, a spring sheet, or a silicone part, etc., and the second elastic element 22 is used to realize the automatic reset of the pressing plate 214 after it is pressed.

[0045] For example, the second elastic element 22 is a spring, one end of which abuts against a spring seat (boss or recess) provided on the inner wall of the housing 11, which is located below the pressing plate 214. The other end of the spring abuts against a boss or rib on the back of the pressing plate 214, so that the axis of the spring is approximately parallel to the pressing direction of the pressing plate 214, thereby generating a torque to reset the pressing plate 214.

[0046] When the user presses the press plate 214, the spring is compressed, the connecting end 211 swings, and then the charging plug is inserted into the external charging vehicle. When the user releases the press plate 214, the spring pushes the press plate 214 to rotate in the opposite direction, causing the connecting end 211 to engage with and lock with the external vehicle.

[0047] In one embodiment of the present invention, the second control component 30 further includes a circuit controller 32. The circuit controller can be a circuit control board, which includes a first control circuit and a second control circuit. The first control circuit is used to control the retraction of the charging cable, and the second control circuit is used to control the release of the charging cable. The second control unit is movably disposed relative to the circuit controller 32 and has a first position, a second position, and a third position relative to the circuit controller 32. When the second control unit moves to the first position, the second control unit triggers the first control circuit to conduct. When the second control unit moves to the second position, the second control unit triggers the second control circuit to conduct. When the second control unit moves to the third position, both the first control circuit and the second control circuit are in an off state.

[0048] For example, the first control circuit and the second control circuit may include partially disconnected conductive lines, which are respectively connected to the forward or reverse drive circuit of the drive motor. The second control unit is provided with a conductive component. When the second control unit moves to the first position, the conductive component contacts the first control circuit to make the line controlling the forward rotation of the drive motor conductive, thereby realizing the retraction of the cable. When the second control unit moves to the second position, the conductive component contacts the second control circuit to make the circuit controlling the reverse rotation of the drive motor conductive, thereby realizing the release of the cable.

[0049] In other embodiments, the first control circuit and the second control circuit may include microswitches, photoelectric sensors, pressure sensors, or other circuit switch control components. These circuit switch control components cooperate with the drive motor to control the retraction and extension of the charging cable. When the second control unit moves to the first position, it contacts or cooperates with the circuit switch control component of the first control circuit to switch the first control circuit to a conducting state, thereby controlling the drive motor to rotate forward. When the second control unit moves to the second position, it contacts or cooperates with the circuit switch control component of the second control circuit to switch the second control circuit to a conducting state, thereby controlling the drive motor to rotate in reverse.

[0050] Combination Figure 2 , Figures 5 to 8 As shown, in one embodiment of the present invention, the driving component is a lever 31, and the first control component 20 further includes a connector 21 and a rotating shaft 212. One end of the connector 21 forms a first control part, and the other end is used to connect to an external charging vehicle / charging device. The connector 21 is rotatably connected to the housing 11 through the rotating shaft 212, and the lever 31 is rotatably mounted on the rotating shaft 212.

[0051] In this embodiment, the connecting member 21 and its mating structure with the rotating shaft 212 can be referred to the description in the above embodiments, and will not be elaborated further here. The lever 31 is rotatably mounted on the rotating shaft 212. By moving the lever 31, the lever 31 can rotate between the first position, the second position, and the third position, thereby realizing the conduction of the first control circuit, or the conduction of the second control circuit, or both the first control circuit and the second control circuit are in an open state.

[0052] The lever 31 is rotatably mounted on the rotating shaft 212. The rotating shaft 212 serves both to support the lever 31 and enable its rotation, and to facilitate the press-to-unlock function of the connector 21. Reusing the rotating shaft 212 in both the first control component 20 and the second control component 30 simplifies the structural quantity, increases the integration level of the charging plug, and contributes to the miniaturization and thinning of the plug design.

[0053] Specifically, such as Figure 4 and Figure 9As shown, the lever 31 has an arc-shaped mating surface 312 on the side facing the rotation shaft 212. The arc-shaped mating surface 312 is adapted to the shape of the rotation shaft 212 and fits against the rotation shaft 212, so that the lever 31 can rotate around the rotation shaft 212. Furthermore, the arc-shaped mating surface 312 extends along the axial direction of the rotation shaft 212, or there are multiple arc-shaped mating surfaces 312, which extend along the axial direction of the rotation shaft 212, so that the lever 31 has a larger contact area with the rotation shaft 212, thereby improving the stability of the lever 31.

[0054] Combination Figures 3 to 8 As shown, in one embodiment of the present invention, the connector 21 has an avoidance channel 213, the rotating shaft 212 passes through the avoidance channel 213 and extends to the outside of the connector 21 at both ends, and the circuit controller 32 is located on the side of the connector 21 facing the bottom of the receiving groove 112. The lever 31 has an abutment part 311 on the side facing the bottom of the receiving groove 112. The abutment part 311 passes through the clearance channel 213 and cooperates with the circuit controller 32.

[0055] In this embodiment, the clearance channel 213 extends vertically through the connector 21 and is located between the connecting end 211 and the pressing plate 214. The clearance channel 213 can be a through hole or a U-shaped groove. By passing the rotating shaft 212 through the clearance channel 213 and setting the lever 31 on the rotating shaft 212, the clearance channel 213 provides sufficient swing space for the movement of the lever 31, preventing interference between the lever 31 and the connector 21. Simultaneously, the circuit controller 32 and the lever 31 are respectively positioned on opposite sides of the connector 21, thereby enabling a tight integration of the first control component 20 and the second control component 30, reducing the volume occupied by the structure.

[0056] The abutment portion 311 is provided below the lever 31 and extends downward to form a column, wedge, or other shaped structure. The length or shape of the abutment portion 311 is such that it can pass downward through the clearance channel 213 and extend into the space below the connector 21, so that its end can cooperate with the first control circuit and the second control circuit of the circuit controller 32.

[0057] The above structural design allows the lever 31, connector 21, and circuit controller 32 to overlap vertically, which minimizes the area occupied by the entire operating mechanism in planar projection and achieves product miniaturization.

[0058] Combination Figure 2 , Figures 6 to 8As shown, in one embodiment of the present invention, the second control component 30 further includes a first elastic element 33, which is disposed between the lever 31 and the circuit controller 32. The first elastic element 33 is used to provide a restoring force for the lever 31 to move from the first position or the second position toward the third position.

[0059] In this embodiment, the first elastic element 33 can be a spring, silicone element, or spring sheet, etc. The function of the first elastic element 33 is to provide the elastic force for the automatic reset of the lever 31. When the lever 31 is in the first position (e.g., the forward or right-turn limit position), when the force applied by the user drives the lever 31 to move, one side of the lever 31 compresses the first elastic element 33 below it. The first elastic element 33 undergoes elastic deformation, so that when the first control circuit on the circuit controller 32 is in a conductive state, the first elastic element 33 is in a compressed state. Similarly, when the lever 31 is in the second position (the backward or left-turn limit position), the other side of the lever 31 compresses the first elastic element 33, so that when the second control circuit on the circuit controller 32 is in a conductive state, the first elastic element 33 is also in a compressed state. Therefore, when the user releases the lever 31, the first elastic element 33, which is in a compressed state, returns to its original shape and pushes the lever 31 to automatically reset to the third position (middle position). In this position, the lever 31 is spaced apart from the circuit controller 32 so that both the first control circuit and the second control circuit of the circuit controller 32 are in the off state.

[0060] Therefore, the design of the first elastic element 33 ensures that the resistance increases evenly when the lever 31 moves from the middle position to the trigger position, providing a "damped" feel. At the same time, the first elastic element 33 drives the lever 31 to automatically reset, ensuring that the lever 31 can quickly and accurately return to the third position after the cable rewinding operation, so that the motor controlling the cable rewinding can be in the off state in time, improving the smoothness of the charging cable rewinding and stopping.

[0061] Combination Figure 2 , Figures 6 to 8 As shown, in one embodiment of the present invention, the first elastic element 33 is a silicone element, and two elastic protrusions 331 are provided on the surface of the silicone element. Each of the two elastic protrusions 331 is provided with a conductive sheet on the side facing the micro switch 32. When the lever 31 is in the first position, the lever 31 presses an elastic protrusion 331, which drives a conductive sheet to be electrically connected to the first control circuit, and the first control circuit is in the conducting state. When lever 31 is in the second position, lever 31 presses another elastic protrusion 331, causing another conductive sheet to be electrically connected to the second control circuit, and the second control circuit is in a conducting state.

[0062] In this embodiment, the silicone material has good elasticity, fatigue resistance, and insulation properties. The silicone parts can be fixed to the base 13 or the bottom of the receiving groove 112 by means of snaps or adhesives.

[0063] The upper surface of the silicone component is integrally formed with two independent, spaced-apart elastic protrusions 331. The two elastic protrusions 331 can be hemispherical, cylindrical, or prismatic, and correspond to the landing points of the abutment portion 311 of the lever 31 when it is rotated to the first and second positions, respectively. A conductive sheet is provided on the side of each elastic protrusion 331 facing the circuit controller 32, i.e., its bottom surface or inner surface. The conductive sheet can be a thin metal sheet (such as copper foil or stainless steel sheet) embedded inside the silicone component.

[0064] The first control circuit controls the forward rotation of the motor, and the second control circuit controls the reverse rotation of the motor. Both the first and second control circuits have disconnect points on their conductive traces, and these disconnect points are located below the conductive sheet. Therefore, when the user pushes the lever 31 to the first position, the abutment portion 311 at the lower end of the lever 31 presses against the elastic protrusion 331 on the left side. The elastic protrusion 331 undergoes elastic deformation and is compressed downwards and laterally, causing the conductive sheet embedded inside the elastic protrusion 331 to displace downwards and ultimately connect electrically with the disconnect point of the first control circuit below, thus putting the first control circuit in a conductive state and enabling the motor to rotate forward.

[0065] Similarly, when the lever 31 is rotated to the second position, its abutment part 311 presses against another elastic protrusion 331 on the right side, causing another conductive sheet inside it to move down and make contact with the circuit disconnection point of the second control circuit, thereby putting the second control circuit into a conducting state and outputting a wire feeding signal.

[0066] In other embodiments, microswitches may be provided in the first control circuit and the second control circuit respectively, and two elastic protrusions 331 may be provided above the microswitches in the first control circuit and the second control circuit respectively. When the drive lever 31 moves to the first position or the second position, the elastic protrusions 331 abut against the microswitches in the first control circuit or against the microswitches in the second control circuit, thereby controlling the forward or reverse rotation of the motor.

[0067] Combination Figure 2 , Figures 6 to 8 As shown, in one embodiment of the present invention, the cover plate 14 is provided with a limiting hole 141, and the second control unit is rotatably limited within the limiting hole 141.

[0068] In this embodiment, the shape of the limiting hole 141 can be an elongated hole, an oblong hole, or a racetrack-shaped hole with rounded ends and a straight edge in the middle, and its length direction corresponds to the direction in which the second control unit needs to swing back and forth.

[0069] For example, the second control unit is a lever 31, and the operating handle portion of the lever 31 extends through the limiting hole 141 for user operation. The lever 31 is rotatably limited within the limiting hole 141. Specifically, the limiting hole 141 provides horizontal swing guidance and limitation for the lever 31: the inner walls at both ends of the limiting hole 141 act as mechanical stops; when the lever 31 rotates to its limit, it will abut against the hole wall to prevent excessive swing angle. The limiting hole 141 also provides vertical anti-disengagement limitation for the lever 31: such as... Figure 4 and Figure 9 As shown, a limiting shaft 313 is designed below the lever 31. A limiting groove is formed on the cover plate 14 or the base 13, or the cover plate 14 and the base 13 together form a limiting groove. After the cover plate 14 is assembled, the limiting shaft 313 is limited within the limiting groove to limit the lever 31 in the vertical direction. Furthermore, the two ends of the limiting shaft 313 have locking protrusions 314. The size of the locking protrusions 314 is larger than the size of the limiting groove. At the same time, the locking protrusions 314 are located outside the space formed by the cover plate 14 and the base 13, while the lever 31 is located within the space formed by the cover plate 14 and the base 13. Therefore, the locking protrusions 314 limit the lever 31 in the axial direction along the limiting shaft 313, further improving the stability of the lever 31 and preventing the lever 31 from being accidentally pulled upward.

[0070] Combination Figure 2 As shown, in one embodiment of the present invention, the main structure 10 further includes a base 13, which is disposed in the receiving groove 112, and the first control component 20 and the second control component 30 are both mounted on the base 13.

[0071] In this embodiment, the shape of the base 13 matches the contour of the receiving groove 112 inside the housing 11, and it is fixedly installed at the bottom of the receiving groove 112 by peripheral buckles, positioning posts or screws. The first control component 20 and the second control component 30 are both mounted on this base 13. When assembling or disassembling the first control component 20 and the second control component 30, it is only necessary to remove the base 13 from the receiving groove 112 or assemble it into the receiving groove 112, thereby improving the convenience of assembling and disassembling the first control component 20 and the second control component 30.

[0072] Furthermore, the bottom of the receiving groove 112 is provided with an opening that connects to the mounting cavity 111, and the base 13 covers the opening at the bottom of the receiving groove 112. Therefore, when the electrical connection body 12 is assembled in or removed from the mounting cavity 111, the opening design of the receiving groove 112 can improve the convenience of assembling and disassembling the electrical connection body 12.

[0073] The present invention also proposes a charging device, which includes a charging cable, a charging host, and a charging plug. The specific structure of the charging plug is as described in the above embodiments. Since the charging device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0074] The charging cable connects to a charging plug and a charging unit at its two ends. The charging unit contains a power conversion module (such as an AC / DC converter), a control circuit, and a motor drive module. The charging unit draws power from the grid, converts it into DC power suitable for electric vehicle charging, and delivers it to the charging plug via the charging cable. Simultaneously, it receives control signals from a microswitch 32 inside the charging plug and controls the cable reel motor to rotate forward, reverse, or stop, enabling automatic cable winding and unwinding. This accommodates different charging cable lengths and improves user convenience.

[0075] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A charging plug for connecting a charging cable, characterized in that, The charging plug includes: The main structure includes a housing and an electrical connection body. An installation cavity is formed inside the housing. The electrical connection body is installed in the installation cavity and is used to connect the charging cable and the external charging port. A receiving groove is formed on the surface of the housing. A first control assembly, partially disposed within the receiving groove, having a first control portion extending from the mounting cavity to the outside, the first control portion being used to control the charging plug to connect to an external charging vehicle / charging device; and The second control component is at least partially disposed within the receiving groove and has a second control part extending out of the mounting cavity to the outside. The second control component is used to control the extension and retraction of the charging cable. The first control unit and the second control unit are located in different positions.

2. The charging plug as described in claim 1, characterized in that, The main structure also includes a cover plate, which, together with the first control unit and the second control unit, seals the receiving groove.

3. The charging plug as described in claim 1, characterized in that, The second control component further includes a circuit controller, which includes a first control circuit and a second control circuit. The first control circuit is used to control the retraction of the charging cable, and the second control circuit is used to control the release of the charging cable. The second control unit is movably disposed relative to the circuit controller, and the second control unit has a first position, a second position, and a third position relative to the circuit controller; When the second control unit moves to the first position, the second control unit triggers the first control circuit to turn on; when the second control unit moves to the second position, the second control unit triggers the second control circuit to turn on; when the second control unit moves to the third position, both the first control circuit and the second control circuit are in the off state.

4. The charging plug as described in claim 2, characterized in that, The second control component includes a second control unit, which is a lever; The first control component includes a connector and a rotating shaft. One end of the connector forms the first control part, and the other end forms a snap-fit ​​for connecting to an external charging vehicle / charging device. The connector is rotatably connected to the housing via the rotating shaft, and the lever is rotatably mounted on the rotating shaft.

5. The charging plug as described in claim 4, characterized in that, The connector has a clearance channel, and the rotating shaft and the lever are located within the clearance channel.

6. The charging plug as described in claim 5, characterized in that, The cover plate has an opening, and the lever extends from the opening to the outside.

7. The charging plug as described in claim 1, characterized in that, The second control component includes a first elastic element, a second control unit, and a circuit controller, wherein the first elastic element is disposed between the second control unit and the circuit controller. The second control unit is movably disposed relative to the circuit controller, and the second control unit has a first position, a second position, and a third position relative to the circuit controller; When the second control unit moves to the first position, the second control unit triggers the first control circuit to turn on; when the second control unit moves to the second position, the second control unit triggers the second control circuit to turn on; when the second control unit moves to the third position, both the first control circuit and the second control circuit are in the off state. The first elastic element is used to provide a restoring force for the second control unit to move from the first position or the second position toward the third position.

8. The charging plug as described in claim 7, characterized in that, The first elastic element is a silicone element, and two elastic protrusions are provided on the surface of the silicone element. Each of the two elastic protrusions has a conductive sheet on the side facing the circuit controller. When the second control unit is in the first position, the second control unit squeezes one of the elastic protrusions, causing one of the conductive sheets to be electrically connected to the first control circuit, and the first control circuit is in a conducting state; When the second control unit is in the second position, the second control unit squeezes the other elastic protrusion, causing the other conductive sheet to be electrically connected to the second control circuit, and the second control circuit is in a conducting state.

9. The charging plug as described in any one of claims 1 to 7, characterized in that, The main structure also includes a base, which is disposed in the receiving groove, and the first control component and the second control component are both mounted on the base.

10. The charging plug as described in any one of claims 1 to 7, characterized in that, The shell is a one-piece molded structure.

11. A charging device, characterized in that, The charging device includes a charging cable, a charging host, and a charging plug as described in any one of claims 1 to 10; The two ends of the charging cable are connected to the charging plug and the charging host, respectively.

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