Intelligent charging pile for robot dog

Abstract

The application belongs to the technical field of robot dog charging equipment, and particularly relates to an intelligent charging pile for robot dogs, and discloses the following scheme: a heat dissipation shell, the top of the heat dissipation shell is provided with an insulating shell; a control cabinet, the control cabinet is detachably arranged on the top of the heat dissipation shell; a docking mechanism, the docking mechanism is fixedly arranged on the top and the inner wall of the insulating shell; the docking mechanism comprises: a sealing plate, the two sides of the sealing plate are fixedly arranged on the inner wall of the insulating shell; and a plastic shell, the top and the bottom of the plastic shell are fixedly arranged on the top of the inner wall of the insulating shell and the bottom of the sealing plate. The gravity difference between the heavy weight plate and the light weight plate and the size difference of the gap between the live wire plate and the zero line plate make the two naturally form a high-low dislocation, ensure that the zero line plate is contacted first and the live wire plate is contacted later during the docking, the live wire plate is disconnected first and the zero line plate is disconnected later during the power-off, avoid the short circuit risk caused by the simultaneous on-off of the live wire and the zero line, and make the connecting rod automatically access the current to prevent the staff from being electrocuted.

Description

Technical Field

[0001] This invention relates to the field of robot dog charging equipment technology, and in particular to a smart charging station for robot dogs. Background Technology

[0002] With the development of intelligent robot technology, robot dogs are being used more and more widely in fields such as patrol security, industrial inspection, and logistics distribution. Their battery life and charging have become the key to ensuring the continuous operation of robot dogs. Existing smart charging stations mostly use springs to drive the contact terminals to make contact with the robot dog's charging terminal. While this achieves a stable connection, the contact terminals corresponding to the live and neutral wires lack effective isolation and protection design, which can easily lead to electric shock to staff. Furthermore, they lack linkage mechanisms to prevent reverse connection and short circuits, posing safety hazards during charging and exhibiting insufficient protection and safety. Therefore, there is an urgent need to provide a smart charging station for robot dogs. Summary of the Invention

[0003] Based on the technical problems in the background technology, the present invention proposes an intelligent charging pile for robot dogs.

[0004] This invention proposes an intelligent charging station for a robot dog, comprising: a heat dissipation shell, with an insulating shell on top of the heat dissipation shell; a control cabinet, detachably mounted on the top of the heat dissipation shell; and a docking mechanism, fixedly mounted on the top and inner wall of the insulating shell, used to achieve precise docking with the robot dog's charging terminal, automatically conduct electricity, and form a stable charging current circuit to complete the robot dog's automatic charging action; the docking mechanism includes: a sealing plate, with both sides of the sealing plate fixedly mounted on the inner wall of the insulating shell; a plastic shell, with its top and bottom fixedly mounted on the top of the inner wall of the insulating shell and the bottom of the sealing plate, respectively; two small bearings, penetrating the front and back of the plastic shell; an insulating cylinder, sleeved in the middle of the small bearings; and a live wire rod and a neutral wire rod, respectively fixedly mounted through the... The system comprises: a metal cylinder positioned between two insulating cylinders; two metal cylinders fixedly mounted at one end of the live wire rod and the neutral wire rod, respectively; a pin rod, one end of which is fixedly mounted at the end of the metal cylinder; two insulating discs fixedly mounted on the outer surfaces of the neutral wire rod and the pin rod, respectively; an insulating tube fixedly mounted on the outer surface of the neutral wire rod; three metal rings movably mounted on the outer surfaces of the two metal cylinders and the insulating tube, respectively; a live wire plate and a neutral wire plate, fixedly mounted on the outer surfaces of the three metal rings; and a weight plate and a light plate, fixedly mounted at the bottom of the live wire plate and the neutral wire plate, respectively. The weight plate and the light plate create a height difference between the live wire plate and the neutral wire plate through gravity, enabling sequential conduction of the charging circuit, preventing reverse connection and short circuits, and providing rotational power for the live wire plate and the neutral wire plate.

[0005] Preferably, the docking mechanism further includes: a separator ring, two separator rings being movably fitted onto the outer surfaces of the live wire plate and the neutral wire plate respectively; a metal plate, multiple metal plates being movably embedded in the periphery of the metal cylinder respectively; a movable groove, the movable groove opening being disposed on the periphery of the metal cylinder and the movable groove being adapted to the metal plate; and an exhaust groove, multiple exhaust groove openings being disposed on both sides of the metal plate for discharging the heat generated during the extension and contact of the metal plate, as well as discharging the air in the movable groove to prevent air from hindering the movement of the metal plate in the movable groove.

[0006] Preferably, the docking mechanism further includes: a limiting cylinder, the bottom of which is fixedly disposed at the top of the insulating shell; a lifting column, which is movably disposed through the middle of the limiting cylinder; a lifting plate, which is fixedly sleeved at the bottom of the lifting column; and a top component, multiple top components being fixedly disposed at the top of the inner wall of the insulating shell.

[0007] Preferably, the docking mechanism further includes: a bottom component, multiple bottom components fixedly disposed on the top of the lifting plate; a tension spring, the two ends of the tension spring being movably disposed on the top component and the bottom component respectively; a connecting rod, the bottom of the connecting rod being fixedly disposed on the top of the lifting column; and an insulating sleeve, the insulating sleeve being fixedly sleeved on the outer surface of the connecting rod.

[0008] Preferably, metal plates are fixedly installed at both ends of the heat dissipation shell, two trapezoidal shells are fixedly installed on the top of the heat dissipation shell, an emergency stop switch is fixedly installed through the side of the trapezoidal shell, an indicator light is fixedly installed through the side of the trapezoidal shell, and a charging head is electrically connected to the side of the control cabinet.

[0009] Preferably, the control cabinet contains a charger, a circuit board, and an air switch. The air switch and charger wires are connected to the circuit board, and the emergency stop switch, indicator lights, charging head live wire board, and neutral wire board are electrically connected to the circuit board via wires.

[0010] Preferably, the lightweight plate has a notch in the middle opening, so that the weight of the heavy plate is greater than the weight of the lightweight plate. The notch on the side of the live wire plate is smaller than the notch on the side of the neutral wire plate, so that the weight of the live wire plate is greater than the weight of the neutral wire plate. When the live wire plate and the neutral wire plate rotate around the axis of the live wire rod, the height of the live wire plate is lower than the height of the neutral wire plate, and the horizontal height of the neutral wire plate is higher than the horizontal height of the axis of the live wire rod. When the neutral wire plate moves downward, it pushes the live wire plate to tilt up and abut against the bottom of another lifting column to form a current loop. The difference in gravity achieves the staggered arrangement of the live wire plate and the neutral wire plate, which is used to realize the sequential conduction of the charging circuit, prevent short circuits caused by simultaneous contact of the live wire and the neutral wire, and improve charging safety.

[0011] Preferably, the metal ring is sleeved around the periphery of multiple metal plates, and the metal plates are pressed against the inner side of the metal ring by gravity, so that a current loop is formed between the metal cylinder and the metal ring through the metal plates. The neutral wire plate and the neutral wire rod are electrically connected, the live wire rod and the live wire plate are electrically connected, and the two insulating discs are located in the gap between the three metal rings, and the three metal rings are located in the middle of the two separating rings.

[0012] Preferably, the bottom of the lifting column is semi-circular, and the two lifting columns are located above the live wire plate and the neutral wire plate, respectively. The two ends of the tension spring are bent to form hooks, which are respectively hooked onto the top component and the bottom component. The top component and the bottom component have the same shape.

[0013] Preferably, the lifting column is movably inserted through the top of the insulating shell. The weight plate and the lightweight plate are made of non-conductive material. The sides of the weight plate and the lightweight plate are respectively fixed to the outer surface of the three metal rings. The top of the connecting rod protrudes from the top of the insulating sleeve, so that the top of the connecting rod contacts the charging terminal of the robot dog to form a current loop.

[0014] The beneficial effects of this invention are as follows: the weight difference between the heavy plate and the light plate, as well as the difference in the gap size between the live wire plate and the neutral wire plate, naturally create a height misalignment between them, ensuring that the neutral wire plate contacts first and the live wire plate contacts last during docking, and that the live wire plate disconnects first and the neutral wire plate disconnects last during power failure, avoiding the risk of short circuit caused by simultaneous on / off of the live and neutral wires, allowing the connection rod to automatically connect to the current, preventing electric shock to personnel, and providing strong protection capabilities; the metal plate always abuts against the metal ring under the action of gravity, and when the metal ring rotates with the live wire plate and the neutral wire plate, the metal plate can adaptively extend and retract along the movable groove, ensuring stable contact pressure and avoiding poor contact caused by vibration or slight displacement, thus providing the advantage of stable contact; the tension spring provides the main reset power, ensuring that the lifting column can be easily pressed down by the robot dog and can quickly reset after the pressure is released; the gravity reset of the live wire plate and the neutral wire plate serves as an auxiliary, ensuring reliable circuit disconnection, forming a double reset guarantee. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an intelligent charging station for robot dogs proposed in this invention; Figure 2 This is a schematic cross-sectional view of the intelligent charging station for robot dogs proposed in this invention. Figure 3 This is a schematic diagram of the overall internal structure of a smart charging station for robot dogs proposed in this invention. Figure 4 This is a schematic cross-sectional view of the docking mechanism for a smart charging station for robot dogs proposed in this invention. Figure 1 ; Figure 5 This is a schematic cross-sectional view of the docking mechanism for a smart charging station for robot dogs proposed in this invention. Figure 2 ; Figure 6 This is a schematic diagram of the docking mechanism structure for a smart charging station for robot dogs proposed in this invention. Figure 1 ; Figure 7 This is a schematic diagram of the docking mechanism structure for a smart charging station for robot dogs proposed in this invention. Figure 2 ; Figure 8 This is a disassembly diagram of the docking mechanism for a smart charging station for robot dogs proposed in this invention. Figure 1 ; Figure 9 This is a disassembly diagram of the docking mechanism for a smart charging station for robot dogs proposed in this invention. Figure 2 ; Figure 10 This is a disassembly diagram of the docking mechanism for a smart charging station for robot dogs proposed in this invention. Figure 3 ; Figure 11 This is a disassembly diagram of the docking mechanism for a smart charging station for robot dogs proposed in this invention. Figure 4 ; Figure 12 This is a disassembly diagram of the docking mechanism for a smart charging station for robot dogs proposed in this invention. Figure 5 .

[0016] In the diagram: 1. Heat sink shell; 2. Metal sheet; 3. Trapezoidal shell; 4. Insulating shell; 5. Sealing plate; 51. Plastic shell; 52. Limiting cylinder; 53. Insulating cylinder; 54. Small bearing; 55. Live wire rod; 56. Neutral wire rod; 57. Metal cylinder; 58. Pin rod; 59. Separator ring; 510. Insulating disc; 511. Insulating tube; 512. Metal plate; 513. Movable groove; 514. Exhaust groove; 515. Metal ring; 515. Live wire plate; 516. Neutral wire plate; 517. Weight plate; 518. Lightweight plate; 519. Top component; 520. Tension spring; 521. Bottom component; 522. Lifting plate; 523. Lifting column; 524. Insulating sleeve; 525. Connecting rod; 526. Control cabinet; 6. Emergency stop switch; 7. Indicator light; 8. Charging head; 9. Detailed Implementation

[0017] Reference Figures 1 to 12A smart charging station for a robot dog includes: a heat dissipation shell 1, with an insulating shell 4 on top of the heat dissipation shell 1. The heat dissipation shell 1 is a hollow structure used to house the internal electrical components of the charging station and to dissipate heat. The insulating shell 4 is used to provide electrical insulation protection for the charging docking area to prevent electric shock and short circuits; a control cabinet 6, which is detachably mounted on the top of the heat dissipation shell 1 and is used to integrate core components for charging control and power supply protection, enabling charging power adjustment, circuit on / off control, and fault monitoring control; and a docking mechanism, which is fixedly mounted on the top and inner wall of the insulating shell 4 to achieve precise docking with the charging end of the robot dog, automatically conduct electricity, and form a stable charging current loop to complete the automatic charging action of the robot dog.

[0018] In some embodiments, the docking mechanism includes: a sealing plate 5, with both sides of the sealing plate 5 fixedly disposed on the inner wall of the insulating shell 4, for sealing the bottom of the insulating shell 4, providing installation support for the lower part of the docking mechanism, and improving the sealing of the internal structure to prevent dust and moisture from entering; a plastic shell 51, with the top and bottom of the plastic shell 51 fixedly disposed on the top of the inner wall of the insulating shell 4 and the bottom of the sealing plate 5, respectively, for providing an installation carrier for the conductive rotating parts of the docking mechanism, and for achieving electrical insulation; and two small bearings 54, with two small bearings 54 penetrating through the front and back of the plastic shell 51, for reducing the rotational frictional resistance of the live wire rod 55 and the neutral wire rod 56, ensuring smooth and unobstructed rotation.

[0019] In some embodiments, an insulating cylinder 53 is sleeved in the middle of a small bearing 54 to achieve electrical insulation between the live wire rod 55, the neutral wire rod 56 and the small bearing 54 and the plastic shell 51, preventing leakage current conduction. The live wire rod 55 and the neutral wire rod 56 are respectively fixedly installed through the middle of the two insulating cylinders 53, serving as the core conductive carriers of the live and neutral wires of the charging circuit, realizing the transmission of electrical energy from the control cabinet 6 to the docking mechanism. Two metal cylinders 57 are respectively fixedly installed at one end of the live wire rod 55 and the neutral wire rod 56 to increase the contact area between the live wire rod 55 and the neutral wire rod 56 and the subsequent conductive components, reduce the contact resistance, ensure conductive stability, and make the live wire rod 55 and the neutral wire rod 56 stably conductively connected to the metal ring 515.

[0020] In some embodiments, a pin 58 is provided, one end of which is fixedly disposed at the end of a metal cylinder 57, and the other end of which is inserted into the middle of another metal cylinder 57, so that the two metal cylinders 57, the live wire rod 55, the neutral wire rod 56, and the pin 58 are axially aligned and rotate synchronously, ensuring the stability of the contact structure; two insulating discs 510 are respectively fixedly sleeved on the outer surfaces of the neutral wire rod 56 and the pin 58, used to separate adjacent metal rings 515, realize electrical isolation between each conductive component, and prevent short circuit between the live wire and the neutral wire; an insulating tube 511 is fixedly sleeved on the outer surface of the neutral wire rod 56, used to realize electrical insulation between the neutral wire rod 56 and the outer metal ring 515, and ensure the circuit independence of the neutral wire rod 56.

[0021] In some embodiments, three metal rings 515 are movably sleeved on the outer surfaces of the two metal cylinders 57 and the insulating tube 511, respectively, for transmitting current from the metal cylinder 57 to the live wire plate 516 and the neutral wire plate 517, and simultaneously providing a rotational support base for the live wire plate 516 and the neutral wire plate 517; the live wire plate 516 and the neutral wire plate 517 are fixedly disposed on the outer surfaces of the three metal rings 515, serving as intermediate conductive components in the charging circuit, realizing the transfer of current from the metal rings 516 to the neutral wire plate 517. The transmission of the ring 515 to the bottom of the lifting column 524 is rotatable around the live wire rod 55 and the neutral wire rod 56 to match the docking angle of the robot dog's charging end. The weight plate 518 and the light plate 519 are fixedly set at the bottom of the live wire plate 516 and the neutral wire plate 517 respectively. The difference in gravity makes the live wire plate 516 and the neutral wire plate 517 form a height difference, realizing the sequential conduction of the charging circuit, preventing reverse connection and short circuit, and at the same time providing rotational power for the live wire plate 516 and the neutral wire plate 517.

[0022] In some embodiments, the docking mechanism further includes: two separator rings 59, which are movably fitted onto the outer surfaces of the live wire plate 516 and the neutral wire plate 517, respectively, to separate the live wire plate 516 and the neutral wire plate 517 from the surrounding components, prevent short circuits, and radially limit the rotation of the live wire plate 516 and the neutral wire plate 517 to ensure stable rotation trajectory; and multiple metal plates 512, which are movably embedded in the periphery of the metal cylinder 57, to movably abut against the inner side of the metal ring 515. Multiple metal plates 512 move in the movable groove 513 due to gravity, causing the metal plates 512 located below the metal cylinder 57 to move downwards. The edges of this portion of the metal plates 512 abut against the inner side of the metal ring 515, ensuring continuous and stable contact between the metal cylinder 57 and the metal ring 515, and realizing reliable current conduction.

[0023] In some embodiments, a movable groove 513 is provided with an opening on the periphery of the metal cylinder 57, and the movable groove 513 is adapted to the metal plate 512; an exhaust groove 514 is provided with openings on both sides of the metal plate 512, for dissipating the heat generated during the extension and contact of the metal plate 512, and for dissipating the air in the movable groove 513, so as to prevent the air from hindering the movement of the metal plate 512 in the movable groove 513.

[0024] In some embodiments, the docking mechanism further includes: a limiting cylinder 52, the bottom of which is fixedly disposed on the top of the insulating shell 4, for axial guidance and radial limitation of the lifting column 524, ensuring that the lifting column 524 only performs vertical lifting movements and preventing deviation from affecting docking accuracy; the lifting column 524, which is movably disposed in the middle of the limiting cylinder 52, for contacting the charging end of the robot dog and conducting current, and triggering the conduction of the live wire plate 516 and the neutral wire plate 517 through its own lifting action, thereby realizing the linkage control of charging docking; and a lifting plate 523, which is fixedly sleeved on the bottom of the lifting column 524, for connecting multiple tension springs 521, so that the lifting column 524 is subjected to uniform tension, ensuring smooth reset action, and limiting the lifting stroke of the lifting column 524.

[0025] In some embodiments, a top component 520, or multiple top components 520, is fixedly disposed on the top of the inner wall of the insulating shell 4, serving as the upper fixed support point for the tension spring 521, providing an installation base for the tension spring 521 and transmitting tension; a bottom component 522, or multiple bottom components 522, is fixedly disposed on the top of the lifting plate 523, serving as the lower fixed support point for the tension spring 521, cooperating with the top component 520 to achieve tension installation of the tension spring 521, transmitting tension to the lifting plate 523 and the lifting column 524; the tension spring 521, with its two ends movably disposed on the top component 520 and the bottom component 522 respectively, provides a reset spring force for the lifting column 524, keeping the lifting column 524 in an extended state when not connected to the robot dog's charging end, and automatically resetting the lifting column 524 after connection is completed; In this invention, the bottom of the connecting rod 526 is fixedly installed on the top of the lifting column 524, and is used to directly contact the charging end of the robot dog. It is the final conductive component for transmitting electrical energy from the charging pile to the robot dog. The insulating sleeve 525 is fixedly sleeved on the outer surface of the connecting rod 526, and is used to achieve electrical insulation between the connecting rod 526 and the surrounding components, prevent leakage and short circuit during charging, and protect the connecting rod 526 from external damage.

[0026] In some embodiments, metal sheets 2 are fixedly provided at both ends of the heat dissipation shell 1. The metal sheets 2 are made of thermally conductive material to increase the contact area between the heat dissipation shell 1 and the air, enhance the heat dissipation effect, and quickly dissipate the heat generated inside the charging pile. Two trapezoidal shells 3 are fixedly provided on the top of the heat dissipation shell 1 to provide physical protection for the emergency stop switch 7 and the indicator light 8 to prevent damage from external impacts, and also to provide dustproof and waterproof functions. An emergency stop switch 7 is fixedly provided through the side of the trapezoidal shell 3 to quickly cut off the entire charging circuit in an emergency, realize charging emergency stop protection, and prevent the expansion of safety accidents. In this invention, an indicator light 8 is fixedly installed through the side of the trapezoidal shell 3 to display the standby, charging, and fault status of the charging pile in real time, realizing visual monitoring of the charging status; a charging head 9 is electrically connected to the side of the control cabinet 6 to realize mobile charging docking of the charging pile, adapting to the charging needs of the robot dog in different locations and scenarios, and improving the flexibility of the charging pile; the inside of the control cabinet 6 contains a charger, a circuit board, and an air switch. The air switch and charger wires are connected to the circuit board. The emergency stop switch 7, indicator light 8, charging head 9, live wire board 516, and neutral wire board 517 are electrically connected to the circuit board through wires; the charger is used to convert the mains power into a charging voltage and current suitable for the robot dog, realizing stable voltage and current power supply; the circuit board, as the control core of the charging pile, realizes the signal transmission, circuit on / off control, and working status monitoring of various electrical components; the air switch is used to realize overload and short circuit protection of the circuit, and automatically cuts off when a circuit fault occurs, protecting the electrical safety of the charging pile and the robot dog.

[0027] In some embodiments, the lightweight plate 519 has a notch in the middle opening, so that the weight of the heavy plate 518 is greater than the weight of the lightweight plate 519. The notch on the side of the live wire plate 516 is smaller than the notch on the side of the neutral wire plate 517, so that the weight of the live wire plate 516 is greater than the weight of the neutral wire plate 517. When the live wire plate 516 and the neutral wire plate 517 rotate around the axis of the live wire rod 55, the height of the live wire plate 516 is lower than the height of the neutral wire plate 517, and the horizontal height of the neutral wire plate 517 is higher than the horizontal height of the axis of the live wire rod 55. When the neutral wire plate 517 moves downward, it pushes the live wire plate 516 to tilt up and press against the bottom of another lifting column 524 to form a current loop. The high and low staggered arrangement of the live wire plate 516 and the neutral wire plate 517 is achieved through the gravity difference, which is used to realize the sequential conduction of the charging circuit, prevent short circuits caused by simultaneous contact of the live wire and the neutral wire, and improve charging safety.

[0028] In some embodiments, a metal ring 515 is sleeved around a plurality of metal plates 512. The metal plates 512 press against the inner side of the metal ring 515 by gravity, so that a current loop is formed between the metal cylinder 57 and the metal ring 515 through the metal plates 512. The neutral wire plate 517 and the neutral wire rod 56 are electrically connected, and the live wire rod 55 and the live wire plate 516 are electrically connected. Two insulating discs 510 are located in the gaps between the three metal rings 515, and the three metal rings 515 are located in the middle of the two separating rings 59. The elastic abutment structure of the metal plates 512 is used to ensure continuous conductive contact between the metal cylinder 57 and the metal rings 515, avoid poor contact caused by rotation and vibration, and ensure the stability of current transmission. The cooperative arrangement of the insulating discs 510 and the separating rings 59 is used to achieve layered isolation of each conductive component, completely block short circuit paths, and improve circuit insulation safety.

[0029] In some embodiments, the bottom of the lifting column 524 is semi-circular to reduce the frictional resistance when the lifting column 524 contacts the live wire plate 516 and the neutral wire plate 517, ensuring smooth contact and relative rotation, and avoiding jamming that affects the connection. The two lifting columns 524 are located above the live wire plate 516 and the neutral wire plate 517 respectively, and are used to cooperate with the live wire plate 516 and the neutral wire plate 517 respectively to realize the independent triggering and conduction of the live wire and neutral wire circuits, and to achieve sequential power supply with the high-low difference design. The two ends of the tension spring 521 are bent to form hooks, which are respectively hooked onto the top component 520 and the bottom component 522 to realize the quick assembly and disassembly of the tension spring 521 with the top component 520 and the bottom component 522, while ensuring the firmness of the connection and stable transmission of the reset force. The top component 520 and the bottom component 522 have the same shape to ensure that the multiple tension springs 521 are evenly stressed, so that the lifting and resetting actions of the lifting column 524 are smooth and without deviation.

[0030] In some embodiments, the lifting column 524 is movably extended through the top of the insulating shell 4 to realize the vertical lifting of the lifting column 524, adapting to different docking heights of the robot dog charging end and improving docking compatibility; the weight plate 518 and the light plate 519 are made of non-conductive material to prevent the weight plate 518 and the light plate 519 from participating in conductivity, and to prevent the risk of short circuit and leakage caused by their own conductivity; the sides of the weight plate 518 and the light plate 519 are respectively fixedly set on the outer surface of the three metal rings 515 to transfer their own gravity difference to the live wire plate 516 and the neutral wire plate 517, driving them to rotate around the live wire rod 55 and the neutral wire rod 56 to form a height difference; In this invention, the top of the connecting rod 526 protrudes beyond the top of the insulating sleeve 525, allowing the top of the connecting rod 526 to contact the charging terminal of the robot dog to form a current loop; the protruding structure of the connecting rod 526 is used to ensure its priority contact with the charging terminal of the robot dog, achieving reliable conductivity and preventing the insulating sleeve 525 from affecting the contact effect; the covering structure of the insulating sleeve 525 is used to prevent the charging terminal of the robot dog from contacting other metal parts of the charging pile and causing a short circuit.

[0031] In some embodiments, the heat sink 1 is made of aluminum alloy through integral stamping and is a hollow rectangular closed structure. Metal sheets 2 are welded to the outer walls at both ends. The metal sheets 2 are made of aluminum alloy heat sink fins and are completely attached to the outer wall of the heat sink 1 to increase the heat dissipation area. Two trapezoidal shells 3 are fixed to the top of the heat sink 1 with bolts. The sides of the trapezoidal shells 3 have reserved mounting holes. The emergency stop switch 7 and the indicator light 8 pass through the mounting holes and are locked with nuts to ensure that they are firmly fixed and waterproof and dustproof. The insulating shell 4 is made of epoxy resin and is fixed to the central area of ​​the top of the heat sink 1 with bolts to form an independent charging docking chamber to achieve electrical isolation.

[0032] In some embodiments, the control cabinet 6 is a detachable metal enclosure, which is fixed to the top side of the heat sink 1 by bolts. Inside, the charger, circuit board and air switch are fixed by metal brackets. The circuit connection follows the logic of "mains input → emergency stop switch 7 → air switch → charger → circuit board → load". The air switch and the charger are connected by welding copper core wires. The output end of the charger is connected to the terminal of the circuit board by bolts. The emergency stop switch 7, indicator light 8, charging head 9, live wire board 516 and neutral wire board 517 are all electrically connected to the corresponding interface of the circuit board by waterproof wires. All wiring points are wrapped with insulating tape and covered with heat shrink tubing for protection.

[0033] In some embodiments, the plastic shell 51 is fixed to the top of the inner wall of the insulating shell 4 and the bottom of the sealing plate 5 by bolts. Bearing mounting holes are reserved on its front and back. The small bearing 54 is inserted into the mounting hole with an interference fit. The insulating cylinder 53 is sleeved on the inner ring of the small bearing 54. The live wire rod 55 and the neutral wire rod 56 respectively have an interference fit through the two insulating cylinders 53 to ensure smooth rotation and insulation isolation. The metal cylinder 57 is made of copper and is fixed to the same end of the live wire rod 55 and the neutral wire rod 56 by welding. One end of the pin rod 58 is welded to the end of one of the metal cylinders 57, and the other end is inserted into the other metal cylinder 57 with a clearance fit to ensure that the two metal cylinders 57 rotate coaxially and synchronously. The insulating disc 510 is made of epoxy resin and is fixed to the outer surface of the neutral wire rod 56 and the pin rod 58 by set screws. The insulating tube 511 is sleeved on the area of ​​the neutral wire rod 56 near the metal cylinder 57 and fixed by adhesive.

[0034] In some embodiments, three metal rings 515 are respectively fitted with gaps on the outer surfaces of two metal cylinders 57 and insulating tube 511. The live wire plate 516 and neutral wire plate 517 are made of brass and are fixed to the outer surfaces of the corresponding metal rings 515 by welding. The weight plate 518 and the lightweight plate 519 are epoxy resin blocks and are fixed to the bottom of the live wire plate 516 and neutral wire plate 517 by bolts. The weight of the weight plate 518 is set to be 1.3 times that of the lightweight plate 519. The side notch size of the live wire plate 516 is larger than that of the neutral wire plate. 517 is less than 2mm to ensure that the gravity difference creates a high-low misalignment; the separator ring 59 is made of rubber and is fitted on the outer surface of the live wire plate 516 and the neutral wire plate 517, located on both sides of the metal ring 515, to achieve isolation between the conductive components and the surrounding structure; four movable grooves 513 are evenly opened on the outer periphery of the metal cylinder 57, the metal plate 512 is an arc-shaped copper sheet, and the gap is embedded in the movable groove 513. Exhaust grooves 514 are opened on both sides of its edge. The exhaust grooves 514 are long strip-shaped through holes that pass through both ends of the metal plate 512.

[0035] In some embodiments, the limiting cylinder 52 is a stainless steel tube, which is welded through and fixed to the top of the insulating shell 4. The lifting column 524 is a stainless steel rod, which passes through the limiting cylinder 52. The bottom of the lifting column 524 is welded to the lifting plate 523. The top of the lifting plate 523 is welded to the bottom component 522. The top of the inner wall of the insulating shell 4 is welded to the top component 520. Both the top component 522 and the bottom component 522 are metal pieces with hooks. The two ends of the tension spring 521 are bent to form hooks, which are respectively hooked to the top component 520 and the bottom component 522. In the natural state, the tension spring 521 is in a slightly tensioned state, which drives the lifting column 524 to stay extended. The connecting rod 526 is a copper rod, which is welded to the top of the lifting column 524. The insulating sleeve 525 is made of silicone rubber and is tightly fitted to the outer surface of the connecting rod 526. The top of the connecting rod 526 protrudes 3mm from the top of the insulating sleeve 525 to ensure reliable contact with the charging end of the robot dog.

[0036] The weight difference between the heavy plate 518 and the light plate 519, and the difference in the notch size between the live wire plate 516 and the neutral wire plate 517, naturally create a height misalignment between them. This ensures that the neutral wire plate 517 contacts first and the live wire plate 516 contacts last when the circuit is connected, and that the live wire plate 516 disconnects first and the neutral wire plate 517 disconnects last when the power is off, avoiding the risk of short circuit caused by simultaneous connection and disconnection of the live and neutral wires. The metal plate 512 has an arc-shaped elastic structure that always abuts against the metal ring 515 under the action of gravity. When the metal ring 515 rotates with the live wire plate 516 and the neutral wire plate 517, the metal plate 512 can adaptively extend and retract along the movable groove 513 to ensure stable contact pressure and avoid poor contact caused by vibration or slight displacement. The tension spring 521 provides the main reset power, ensuring that the lifting column 524 can be easily pressed down by the robot dog and can quickly reset after the pressure is released. The gravity reset of the live wire plate 516 and the neutral wire plate 517 serves as an auxiliary measure to ensure reliable circuit disconnection, forming a double reset guarantee.

[0037] When in use, after the charging pile is connected to 220V AC power, the circuit board is powered on and performs a self-test, checking the status of the emergency stop switch 7, the circuit insulation, and the integrity of the connections of each component. After the self-test passes, the air switch remains closed, and the indicator light 8 switches to a solid red light, entering standby mode. At this time, the tension spring 521 is in a slightly tensioned state, which drives the lifting column 524 to extend through the lifting plate 523, and the wiring rod 526 protrudes from the insulating sleeve 525. Under the gravity difference between the weight plate 518 and the light plate 519, the live wire plate 516 and the neutral wire plate 517 rotate naturally around the axis of the live wire rod 55. The live wire plate 516 is in a lower position due to its greater gravity, and the neutral wire plate 517 is in a higher position, forming a height misalignment, and the circuit is in a disconnected state. In the current state, the live wire plate 516 is not in contact with the lifting column 524 above it; the metal plate 512 slides downward along the movable groove 513 under its own gravity, and its edge abuts against the inner side of the metal ring 515, preparing for conductivity; the robot dog identifies the location of the charging pile through its own visual positioning system, moves to the docking area at the top of the insulating shell 4, aligns its charging end with the terminal rod 526 and applies downward pressure; the pressure drives the lifting column 524 to move downward along the limiting cylinder 52, the tension spring 521 is further stretched, and the semi-circular bottom of the lifting column 524 contacts the upper surface of the neutral wire plate 517 and applies downward thrust; under the action of thrust, the neutral wire plate 517 rotates axially downward around the live wire rod 55 and the neutral wire rod 56, and during the rotation, its edge abuts against the live wire rod 516. The side of the wire plate 516 contacts and pushes the live wire plate 516 upward until its upper surface abuts the bottom of another lifting column 524, completing the conductive connection between the two lifting columns 524 and the live wire plate 516 and the neutral wire plate 517. After the live wire plate 516 and the neutral wire plate 517 contact the lifting column 524, the circuit board detects the conductive signal through the current sensing module and immediately activates the leakage detection module to detect the charging circuit. If no leakage or short circuit faults are detected, the circuit board sends a start command to the charger. The charger converts the mains power to a DC voltage suitable for the robot dog, such as 24V / 48V, according to the robot dog's requirements, and transmits it to the live wire plate 516 and the neutral wire plate 517 through the circuit. Electrical energy is then transferred through the "live wire plate 516" and "neutral wire plate 517". The circuit "Line board 516 → lifting column 524 → connecting rod 526 → robot dog charging terminal" and "robot dog charging terminal → connecting rod 526 → lifting column 524 → neutral wire board 517" form a complete circuit to achieve charging. After charging starts, the circuit board control indicator light 8 switches to a solid green light to provide real-time feedback on the charging status. During charging, the metal plate 512 is always in contact with the metal ring 515 under the action of gravity to ensure stable current transmission. The heat generated by the expansion and contraction of the metal plate 512 and the air in the movable groove 513 are discharged through the exhaust groove 514 to avoid overheating or air obstruction affecting the contact effect. The circuit board monitors the robot dog battery voltage in real time through the voltage detection module. When the voltage reaches the full charge threshold, such as 1 / 3 of the battery's rated voltage, the circuit will charge.When the power is doubled, a power-off command is immediately sent to the charger, and the charger stops outputting power. Simultaneously, the control circuits corresponding to the live wire board 516 and the neutral wire board 517 are disconnected. The tension spring 521, under the action of its reset force, moves the lifting plate 523 and the lifting column 524 upwards, returning them to their extended state. The live wire board 516 and the neutral wire board 517 reset under the gravity of the weight plate 518 and the light plate 519. The live wire board 516 quickly separates from the lifting column 524, re-establishing a high-low misalignment, and the circuit is disconnected. Indicator light 8 switches to a solid red, the charging pile returns to standby mode, and the robot dog detects that charging has stopped and autonomously leaves the dock. During the entire charging process, the circuit board continuously monitors the circuit for leakage, overcurrent, and short circuit conditions. If a leakage current exceeding 30mA, a current exceeding 1.5 times the rated value, or a short circuit signal is detected, a trip command is immediately sent to the air switch. The air switch automatically trips, cutting off the main circuit. Simultaneously, indicator light 8 flashes red and green alternately, issuing a fault warning. In case of emergencies such as machine dog malfunction or circuit abnormalities, staff can press emergency stop switch 7 to forcibly cut off the main circuit and prevent the accident from escalating. After troubleshooting, emergency stop switch 7 and the air switch must be manually reset. The charging pile can only return to standby mode after passing the self-test upon power-on.

[0038] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A smart charging station for robot dogs, characterized in that: include: Heat dissipation shell (1), and an insulating shell (4) is provided on the top of the heat dissipation shell (1). Control cabinet (6), which is detachably mounted on the top of heat sink (1); The docking mechanism is fixedly installed on the top and inner wall of the insulating shell (4) to achieve precise docking with the charging end of the robot dog, automatically conduct electricity and form a stable charging current circuit to complete the automatic charging action of the robot dog. The partner organizations include: Sealing plate (5), the two sides of sealing plate (5) are respectively fixed to the inner wall of insulating shell (4); The top and bottom of the plastic shell (51) are respectively fixed to the top of the inner wall of the insulating shell (4) and the bottom of the sealing plate (5); Small bearings (54), two small bearings (54) are disposed through the front and back of the plastic shell (51); An insulating cylinder (53) is fitted in the middle of a small bearing (54); The live wire pole (55) and the neutral wire pole (56) are fixedly installed in the middle of the two insulating cylinders (53); Metal cylinders (57), two metal cylinders (57) are respectively fixed at one end of the live wire pole (55) and the neutral wire pole (56); A pin (58) is fixed at one end to the end of a metal cylinder (57); Insulating discs (510), two insulating discs (510) are respectively fixedly sleeved on the outer surfaces of the neutral wire pole (56) and the pin pole (58); An insulating tube (511) is fixedly sleeved on the outer surface of the neutral pole (56); Metal rings (515), three metal rings (515) are respectively movably fitted on the outer surfaces of two metal cylinders (57) and insulating tube (511); The live wire plate (516) and the neutral wire plate (517) are respectively fixedly installed on the outer surface of the three metal rings (515); The weight plate (518) and the light plate (519) are fixedly installed at the bottom of the live wire plate (516) and the neutral wire plate (517) respectively. The difference in gravity makes the live wire plate (516) and the neutral wire plate (517) form a height difference, realizing the sequential conduction of the charging circuit, preventing reverse connection and short circuit, and providing rotational power for the live wire plate (516) and the neutral wire plate (517).

2. The intelligent charging station for a robot dog according to claim 1, characterized in that, The docking mechanism also includes: Separating rings (59), two separating rings (59) are respectively movably sleeved on the outer surfaces of the live wire plate (516) and the neutral wire plate (517); Metal plates (512), multiple metal plates (512) are respectively movably embedded in the periphery of the metal cylinder (57); The movable groove (513) has an opening located on the periphery of the metal cylinder (57) and is compatible with the metal plate (512). The exhaust grooves (514) are provided on both sides of the metal plate (512) to exhaust the heat generated during the expansion and contraction of the metal plate (512) and to exhaust the air in the movable groove (513) to prevent the air from hindering the movement of the metal plate (512) in the movable groove (513).

3. The intelligent charging station for a robot dog according to claim 2, characterized in that, The docking mechanism also includes: The bottom of the limiting cylinder (52) is fixedly installed through the top of the insulating shell (4); The lifting column (524) moves through the middle of the limiting cylinder (52); The lifting plate (523) is fixedly sleeved on the bottom of the lifting column (524); Top component (520), multiple top components (520) are fixedly installed on the top of the inner wall of the insulating shell (4).

4. The intelligent charging station for a robot dog according to claim 3, characterized in that, The docking mechanism also includes: The bottom component (522) is fixedly mounted on the top of the lifting plate (523); A tension spring (521) has two ends that are movably mounted on the top component (520) and the bottom component (522), respectively. The bottom of the connecting rod (526) is fixedly installed on the top of the lifting column (524); An insulating sleeve (525) is fixedly sleeved on the outer surface of the connecting rod (526).

5. The intelligent charging station for a robot dog according to claim 4, characterized in that, Metal sheets (2) are fixedly installed at both ends of the heat sink (1). Two trapezoidal shells (3) are fixedly installed on the top of the heat sink (1). An emergency stop switch (7) is fixedly installed through the side of the trapezoidal shell (3). An indicator light (8) is fixedly installed through the side of the trapezoidal shell (3). A charging head (9) is electrically connected to the side of the control cabinet (6).

6. The intelligent charging station for a robot dog according to claim 5, characterized in that, The control cabinet (6) contains a charger, a circuit board and an air switch. The air switch and charger wires are connected to the circuit board. The emergency stop switch (7), indicator light (8), charging head (9), live wire board (516) and neutral wire board (517) are electrically connected to the circuit board by wires.

7. The intelligent charging station for a robot dog according to claim 5, characterized in that, The lightweight plate (519) has a notch in the middle opening, so that the weight of the heavy plate (518) is greater than the weight of the lightweight plate (519). The notch on the side of the live wire plate (516) is smaller than the notch on the side of the neutral wire plate (517), so that the weight of the live wire plate (516) is greater than the weight of the neutral wire plate (517). When the live wire plate (516) and the neutral wire plate (517) rotate about the axis of the live wire rod (55), the height of the live wire plate (516) is lower than that of the neutral wire plate (518). The height of the neutral wire plate (517) is higher than the axial horizontal height of the live wire rod (55). When the neutral wire plate (517) moves downward, it pushes the live wire plate (516) to tilt up and press against the bottom of another lifting column (524) to form a current loop. The high and low staggered arrangement of the live wire plate (516) and the neutral wire plate (517) is achieved through the gravity difference, which is used to realize the sequential conduction of the charging circuit, prevent the short circuit caused by the simultaneous contact of the live wire and the neutral wire, and improve the charging safety.

8. The intelligent charging station for a robot dog according to claim 5, characterized in that, The metal ring (515) is sleeved around the periphery of multiple metal plates (512). The metal plates (512) press against the inner side of the metal ring (515) by gravity, so that the metal cylinder (57) and the metal ring (515) form a current loop through the metal plate (512). The neutral wire plate (517) and the neutral wire rod (56) are electrically connected, and the live wire rod (55) and the live wire plate (516) are electrically connected. Two insulating discs (510) are located in the gap between the three metal rings (515), and the three metal rings (515) are located in the middle of the two separating rings (59).

9. A smart charging station for a robot dog according to claim 5, characterized in that, The bottom of the lifting column (524) is semi-circular. The two lifting columns (524) are located above the live wire plate (516) and the neutral wire plate (517) respectively. The two ends of the tension spring (521) are bent to form hooks, which are respectively attached to the top part (520) and the bottom part (522). The top part (520) and the bottom part (522) have the same shape.

10. A smart charging station for a robot dog according to claim 5, characterized in that, The lifting column (524) is movably inserted through the top of the insulating shell (4). The weight plate (518) and the light plate (519) are made of non-conductive material. The sides of the weight plate (518) and the light plate (519) are respectively fixed on the outer surface of the three metal rings (515). The top of the connecting rod (526) protrudes from the top of the insulating sleeve (525), so that the top of the connecting rod (526) contacts the charging end of the robot dog to form a current loop.

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