Stereoscopic charging station for electric vehicles

Abstract

The utility model discloses an electric automobile three-dimensional charging station, which comprises a frame body, two lifting platforms and a plurality of electric automobile trays, a plurality of charging layers are vertically arranged on the frame body, and each charging layer comprises two charging positions; female charging connection assemblies are respectively arranged in two charging positions of each charging layer on the frame body, and each female charging connection assembly is externally connected with a charging pile; the two lifting tables are tightly attached to the left end and the right end of the frame body respectively, and each lifting table is connected with the frame body through a lifting mechanism and can move vertically. A tray transverse movement driving device is arranged on each lifting platform; each electric vehicle tray is located on the charging position or the lifting platform, and a sub-charging connection assembly is arranged on the side face, close to the center of the frame body, of each electric vehicle tray in the transverse direction. And the sub-charging connection assembly on each electric vehicle tray is connected with at least one charging gun arranged on the electric vehicle tray through a circuit. The three-dimensional charging station has the advantages of being high in integrity, compact in layout, high in space utilization rate, safe in charging and rapid in charging.

Description

Technical Field

[0001] This invention relates to the field of electric vehicle charging and is applied to three-dimensional charging. It can effectively solve the problem of multi-layer three-dimensional charging, enabling multiple electric vehicles to be charged simultaneously in a smaller space. Background Technology

[0002] Currently, electric vehicles are charged by installing charging stations on the ground. If multiple electric vehicles are charging at the same time, they will occupy multiple ground parking spaces, which requires a large amount of land. In some large and medium-sized cities, especially in the central areas where land is scarce, it is impossible to provide enough land to build charging stations. This makes it extremely inconvenient for electric vehicle users, which also restricts the promotion of electric vehicles and affects the carbon emission targets of many cities.

[0003] Patent announcement CN213980136U, entitled "A Small 3D Parking Garage," discloses a circular parking space layout for lateral vehicle access, but does not disclose the relevant technical solutions for charging electric vehicles. Similarly, patent CN116335449A, entitled "A Lateral Sliding 3D Parking Garage and Its Operation Method," details a circular caisson parking garage capable of lateral vehicle exchange. While describing the process of a vehicle moving from the entrance to the outer ring parking spaces, the garage does not support lateral vehicle charging or independently configurable charging levels.

[0004] Patent CN114043884A discloses a novel intelligent three-dimensional charging station, comprising a substation, cable a, a distribution box, cable b, an intelligent charging manager, cable c, a three-dimensional parking garage frame, floor supports, chargers, car carriers, sliding contact lines, current collectors, charging guns, monitoring cameras, lighting, and a car retrieval device. Its key features are: cable a is output from the substation, connecting to the distribution box; cable b is output from the distribution box, connecting to the intelligent charging manager; cable c is output from the intelligent charging manager; cable c runs along the three-dimensional parking garage frame to the chargers on each floor; the chargers are installed under the floor supports on each floor; sliding contact lines are installed on the outside of the chargers; car carriers are stored on the floor supports; a current collector is installed on one side of each car carrier, with one end of the current collector connected to a charging gun; the charging gun is hung on one side of the car carrier; a monitoring camera and lighting are installed at the top of the three-dimensional parking garage frame; and a car retrieval device is installed on the side of the three-dimensional parking garage frame. Thus, a complete three-dimensional charging station is formed. Its main drawback is that the chargers are installed under the support frames on each floor, placing numerous chargers high up in the frame. This makes the chargers prone to overheating, especially during DC fast charging. Due to the height of the frame and the high position of each charger, it is difficult to implement cooling and arc-extinguishing protection measures for each charger. If overheating leads to an open flame, the entire charging station can quickly catch fire, making rapid firefighting impossible. Furthermore, its structural configuration is unreasonable; vehicles need to be rotated during storage and retrieval, making vehicle access difficult and inconvenient, resulting in a large footprint.

[0005] Furthermore, in the existing technology, when the vehicle-carrying mechanism equipped with an electric vehicle enters the charging position of the three-dimensional charging station and connects with the charging facility to obtain power, the vehicle-carrying mechanism is moving and will vibrate. In a vibrating environment, inaccurate docking is prone to occur, which can damage the docking mechanism. Alternatively, in a vibrating environment, other docking mechanisms may experience intermittent connections, which can generate heat, reduce charging power, and prolong charging time. This cannot be effectively solved and leaves safety hazards. Summary of the Invention

[0006] The utility model proposes a three-dimensional charging station, which has the advantages of strong integrity, compact layout, high space utilization, charging safety, and fast charging.

[0007] The technical solution adopted in this utility model is as follows.

[0008] An electric vehicle three-dimensional charging station is characterized by comprising: a frame, wherein the frame is a frame structure, and a plurality of charging layers are arranged vertically on the frame, each charging layer including two charging positions symmetrically arranged on the left and right; each of the two charging positions in each charging layer on the frame is provided with a female charging connection component, the female charging connection component being installed on the frame between the two charging positions; and each female charging connection component is externally connected to a charging pile.

[0009] Two lifting platforms are respectively set close to the left and right ends of the frame. Each lifting platform is connected to the frame through a lifting mechanism and can move vertically. Each lifting platform is equipped with a pallet lateral movement drive device.

[0010] Several electric vehicle trays, each electric vehicle tray is located at a charging position or on a lifting platform, and each electric vehicle tray is provided with a sub-charging connection component on the side of the frame near the center of the frame in the horizontal direction; the sub-charging connection component on each electric vehicle tray is connected to at least one charging gun set on the electric vehicle tray through a line.

[0011] Each charging position is equipped with a horizontal pallet frame moving guide rail below it, and each lifting platform is equipped with a lifting platform pallet frame moving guide rail. When the lifting mechanism controls the lifting platform pallet frame moving guide rail on the lifting platform to align with the horizontal pallet frame moving guide rail of a charging position near the side of the lifting platform, the pallet lateral movement drive device can control the electric vehicle pallet on the lifting platform to enter the charging position and make the sub-charging connection component dock with a female charging connection component, or control the electric vehicle pallet on the charging position to enter the lifting platform.

[0012] During operation, the lifting platform is raised using a lifting mechanism and aligned with a charging position equipped with a vehicle carrier. A lateral movement drive device moves the vehicle carrier from the charging position onto the lifting platform. Then, the lifting mechanism lowers the platform to the ground. The electric vehicle to be charged is driven onto the electric vehicle tray on the lifting platform, and the charging gun is inserted into the charging port of the electric vehicle. The driver then leaves the lifting platform. The lifting mechanism raises the platform again and aligns it with an empty charging position. The lateral movement drive device controls the electric vehicle tray on the lifting platform to enter the charging position and connects the sub-charging connection assembly with the sub-charging connection assembly in the target charging position. Then, the charging pile supplies power, and the charging gun begins charging the electric vehicle. After charging is complete, the lifting mechanism raises the platform again and aligns it with the completed charging position. The lateral movement drive device controls the electric vehicle tray on the target charging position to enter the lifting platform, and the lifting mechanism lowers the platform to the ground. The driver removes the charging gun from the charging port of the electric vehicle and drives away from the lifting platform.

[0013] The beneficial effects of this utility model are as follows: 1. When the two lifting platforms are lowered to the ground by the lifting mechanism, electric vehicles to be charged can drive into or out of the electric vehicle trays on the lifting platforms from four directions: left front, left rear, right front, and right rear of the frame, making vehicle entry and exit convenient. The two-way entry and exit design can improve the traffic efficiency and convenience of the charging station, allowing vehicles to quickly enter and exit the charging station from different directions and reducing vehicle queuing time. 2. It makes full use of vertical space, accommodating more charging facilities on limited land, greatly improving space utilization, and solving the problem that traditional ground charging stations cannot carry out large-scale and intensive charging due to site limitations. The layout is compact and the space utilization rate is high. 3. The frame structure facilitates ventilation, heat dissipation, and emergency response. 4. Each mother charging connection component is connected to an external charging pile. Thus, there are no chargers on the frame, solving the problem that in the existing technology, when DC fast charging is performed, it is difficult to adopt cooling, arc extinguishing, and other protective measures for each charger due to the high frame and the high position of each charger.

[0014] As a preferred technical solution, the mother charging connection assembly is connected to the frame through a position self-adjustment device; the position self-adjustment device includes a first connecting plate, a second connecting plate located on the side of the first connecting plate away from the center of the frame in the lateral direction, and a third connecting plate located on the electric vehicle tray; the first connecting plate is provided with a plurality of support rod mounting holes in the lateral direction, and a support rod is hinged to each support rod mounting hole, and the end of each support rod away from the center of the frame in the lateral direction is fixed to the second connecting plate;

[0015] Each support rod is fitted with a spring, one end of which contacts the first connecting plate and the other end of which contacts the second connecting plate. A longitudinal beam is provided between the two charging positions of each charging layer on the frame, and each second connecting plate is connected to the longitudinal beam. The female charging connection assembly is installed on the second connecting plate; the female charging connection assembly is installed on the third connecting plate. Insert-type guide assemblies are provided on the lateral side of the second connecting plate away from the center of the frame and on the lateral side of the third connecting plate near the center of the frame. This technical solution employs a support rod hinged to each support rod mounting hole. Thus, the second connecting plate essentially functions as a cantilever structure mounted on the first connecting plate, capable of slight movement along a normal direction perpendicular to the second connecting plate and away from the center of the first connecting plate's side surface. Springs are fitted onto each support rod. When vibration occurs, the second connecting plate can shift slightly. When the insertable main connecting guide devices align, the springs press against the second connecting plate. Even with slight misalignment of the second and third connecting plates, the female and female charging connection components on the second and third connecting plates can still achieve a tight connection without damaging the charging connection components mounted on the first and second connecting plates. This allows the connection components to automatically correct and align tightly even when the charging equipment connection position vibrates during vehicle movement, preventing loose connections and ensuring charging safety.

[0016] As a preferred technical solution, the insertable guide assembly includes several main guide rods and a number of main guide sleeves equal to the number of main guide rods. When a sub-charging docking assembly is connected to a female charging docking assembly, each main guide rod is inserted into a main guide sleeve. The side of each electric vehicle tray that is lateral and close to the center of the frame is connected to the sub-charging docking assembly through a third connecting plate.

[0017] The second connecting upright has several main directional inserts on its lateral side away from the center of the frame, and each third connecting upright has a corresponding main directional sleeve on its lateral side near the center of the frame. The diameter of the main directional inserts gradually decreases in the lateral direction away from the center of the frame, forming a pointed tip. Alternatively, the second connecting upright has several main directional sleeves on its lateral side away from the center of the frame, and each third connecting upright has a corresponding main directional insert on its lateral side near the center of the frame. The diameter of the main directional inserts gradually decreases in the lateral direction near the center of the frame, forming a pointed tip. Alternatively, the second connecting upright has several main directional inserts on its lateral side away from the center of the frame, and each third connecting upright has a corresponding main directional sleeve on its lateral side near the center of the frame. The main directional sleeve has a flared end near the center of the frame. Alternatively, the second connecting upright has several main directional sleeves on its lateral side away from the center of the frame, and each third connecting upright has a corresponding main directional insert on its lateral side near the center of the frame. The main directional sleeve has a flared end near the center of the frame.

[0018] As a preferred technical solution, each female charging connector has a corresponding horizontally inserted precision guide component on its side away from the center of the frame, and each female charging connector has a corresponding horizontally inserted precision guide component on its side closer to the center of the frame. The insertion precision guide component includes several precision guide rods and several precision guide holes. The female charging connector has several precision guide rods on its side away from the center of the frame, and each female charging connector has a corresponding horizontally inserted precision guide hole on its side closer to the center of the frame. The diameter of the precision guide rods gradually decreases in diameter towards the center of the frame, forming a pointed tip. Alternatively, the female charging connector has several precision guide holes on its side away from the center of the frame, and each female charging connector has a corresponding horizontally inserted precision guide rod on its side closer to the center of the frame. The diameter of the precision guide rods gradually decreases in diameter towards the center of the frame, forming a pointed tip. When a female charging connector is connected to a female charging connector, each precision guide rod is inserted into a precision guide hole. It is equipped with a precision guide component, which makes it easier for the female charging connection component and the female charging connection component to be closely connected.

[0019] As a preferred technical solution, a first spring positioning groove is coaxially provided on the outer side of each support rod mounting hole on the side of the first connecting plate near the second connecting plate, and a second spring positioning groove is coaxially provided on the outer side of each support rod on the side of the second connecting plate near the first connecting plate. The two ends of each spring are respectively inserted into the nearest first spring positioning groove and the nearest second spring positioning groove. When vibration occurs, when the second connecting plate moves slightly along the normal direction perpendicular to the second connecting plate and away from the center of the side of the first connecting plate, the springs provide a centripetal force to the second connecting plate to return it to its initial position, automatically adjusting the second connecting plate back to its initial position, which facilitates alignment.

[0020] As a preferred technical solution, a support rod is inserted into each support rod mounting hole, and a movable gap is provided between the portion of each support rod inserted into the support rod mounting hole and the support rod mounting hole. The diameter of the portion of each support rod inserted into the support rod mounting hole is smaller than the diameter of the rest of the support rod, thus forming a step on the support rod. A side stop is provided at the end of the support rod away from the second connecting plate, and the distance between the side stop and the step is greater than the thickness of the first connecting plate. Alternatively, the support rod has a side stop at the end away from the second connecting plate, and a middle stop is provided on the side of the support rod near the second connecting plate, with the distance between the side stop and the middle stop greater than the thickness of the first connecting plate. Each support rod has a movable gap between its insertion portion into the support rod mounting through hole and the through hole itself. This allows the second connecting plate to function as a cantilever structure mounted on the first connecting plate, capable of slight movement along a normal direction perpendicular to the second connecting plate and away from the center of the first connecting plate's side surface. Each support rod is fitted with a spring, allowing the second connecting plate to move slightly during vibration. When the insertable main guide devices align, the springs press against the second connecting plate, ensuring a tight connection of the charging connection components even with slight misalignment between the second and third connecting plates. The end of each support rod away from the second connecting plate can be hinged to the support rod mounting through hole. As long as the difference between the support rod diameter and the support rod mounting through hole diameter is constant, and the distance between the step and the side blocking body, or the distance between the side blocking body and the center blocking body, is constant, the maximum movable angle between the support rod and the central axis of the support rod mounting through hole is also constant.

[0021] As a preferred technical solution, the side blocking body or the intermediate blocking body is threadedly connected to the support rod. Using this solution, the end of each support rod furthest from the second connecting plate can be hinged to the support rod mounting through hole. As long as the difference between the support rod diameter and the support rod mounting through hole diameter is constant, the distance between the step and the side blocking body, or the distance between the side blocking body and the intermediate blocking body, is constant, the maximum movable angle between the support rod and the central axis of the support rod mounting through hole is also a constant value. The threaded connection facilitates adjustment of the position of the side blocking body or the intermediate blocking body.

[0022] As a preferred technical solution, each female charging connector is equipped with several charging contacts and several auxiliary charging contacts, and each female charging connector is equipped with charging contacts and auxiliary charging contacts corresponding to the charging contacts and auxiliary charging contacts on the female charging connector. When a female charging connector is connected to a female charging connector, the charging contacts and auxiliary charging contacts on the female charging connector and the corresponding charging contacts and auxiliary charging contacts on the female charging connector make contact. The auxiliary charging contacts are one or more types of communication contacts, charging connection contacts, and low-voltage auxiliary power supply contacts. This technical solution facilitates the control system in obtaining battery charging information and controlling the charging process.

[0023] As a preferred technical solution, the electric vehicle three-dimensional charging station includes a control system, which is connected to the charging pile, the main charging connection component, the lifting mechanism, and the tray lateral movement drive device, respectively.

[0024] As a preferred technical solution, a transverse travel wheel set is installed at the front and rear ends of the bottom surface of the electric vehicle pallet, and the transverse travel wheel set includes several transverse travel wheels; a transverse rack is installed between the two transverse travel wheel sets on the bottom surface of the electric vehicle pallet, and the front or rear side of the transverse rack is provided with several teeth.

[0025] As a preferred technical solution, a charging position tray frame is provided below the charging position. The charging position tray frame includes a longitudinal side beam disposed at the bottom end of the charging position, laterally away from the centroid of the frame. The front end of the top surface of the longitudinal side beam is laterally connected to a first charging position horizontal tray frame moving rail, and the rear end of the top surface of the longitudinal side beam is laterally connected to a second charging position horizontal tray frame moving rail. When the electric vehicle tray is fully positioned in the charging position, the lateral travel wheels at the front end of the electric vehicle tray are located on the first charging position horizontal tray frame moving rail, and the lateral travel wheels at the rear end of the electric vehicle tray are located on the second charging position horizontal tray frame moving rail. Each sub-charging connection component on the electric vehicle tray is connected to the nearest female charging connection component.

[0026] As a preferred technical solution, the pallet lateral movement drive device includes a laterally movable pilot frame mounted on the lifting platform, with a pilot frame drive motor and a gear drive motor mounted on the pilot frame. The lifting platform pallet frame moving guide rails include a third charging position horizontal pallet frame moving rail and a fourth charging position horizontal pallet frame moving rail. A third charging position horizontal pallet frame moving rail is provided on the front side of the pilot frame on the lifting platform, and a fourth charging position horizontal pallet frame moving rail is provided on the rear side of the pilot frame on the lifting platform. Several gears with their central axes arranged vertically are arranged laterally at the top of the pilot frame, with the gear closest to the frame body connected to a gear drive motor. When the electric vehicle pallet is on the lifting platform, the lateral travel wheels at the front of the electric vehicle pallet are on the third charging position horizontal pallet frame moving rail, and the lateral travel wheels at the rear of the electric vehicle pallet are on the fourth charging position horizontal pallet frame moving rail. When the lifting mechanism controls the lifting platform pallet frame moving rail to align with the charging position horizontal pallet frame moving rail of a charging position near the lifting platform side of the frame body, the third charging position horizontal pallet frame moving rail aligns with the first charging position horizontal pallet frame moving rail, and the fourth charging position horizontal pallet frame moving rail aligns with the second charging position horizontal pallet frame moving rail. Each gear aligns with the toothed face of the lateral rack on the electric vehicle pallet. The pilot frame drive motor is located at the bottom of the pilot frame, and the pilot frame drive motor is connected to the driven wheel located at the bottom of the pilot frame via a frame drive chain, which is connected to the pilot frame.

[0027] As a preferred technical solution, the lifting platform includes two longitudinal beams, and two parallel transport frame guide rails are arranged laterally between the two longitudinal beams. Each transport frame guide rail has a pressure roller that is longitudinally arranged along the central axis and protrudes towards the other transport frame guide rail at its top and bottom ends. The pressure roller at the top of each transport frame guide rail contacts the top surface of the pilot frame, and the pressure roller at the bottom of each transport frame guide rail contacts the bottom surface of the pilot frame.

[0028] As a preferred technical solution, the bottom end of one of the transport frame guide rails is longitudinally provided with two drive chain support wheels and a pilot frame drive motor. The two drive chain support wheels are connected to the drive chain, and one of the drive chain support wheels is connected to the pilot frame drive motor.

[0029] As a preferred technical solution, the pilot frame is provided with several gear mounting plates in the longitudinal direction, and gears are installed on each gear mounting plate.

[0030] The gear drive motor is located at the bottom of the gear closest to the frame at the bottom of the pilot frame and is connected to the gear drive motor via a gear drive chain.

[0031] As a preferred technical solution, each gear mounting plate is provided with a backrest wheel in a vertical direction; when the lifting mechanism controls the lifting platform pallet frame moving guide rail on the lifting platform to align with the charging position horizontal pallet frame moving guide rail of the frame near the charging position on the side of the lifting platform, each backrest wheel is aligned with the toothless side of the transverse rack on the electric vehicle pallet.

[0032] As a preferred technical solution, several guide strips are provided laterally on the bottom surface of the electric vehicle tray. The longitudinal beams are connected laterally to the center side of the frame with the same number of parking space guide rods as the guide strips. Each parking space guide rod is equipped with several first guide wheel sets, each first guide wheel set including two first guide wheels symmetrically arranged front and rear, and each first guide wheel is vertically arranged. When the electric vehicle pallet is located in the charging position, the guide strip on the bottom surface of the electric vehicle pallet in each charging position is engaged between the two first guide wheels of the nearest first guide wheel set. A lifting platform transverse guide rod is provided between the two longitudinal beams, with the same number of guide strips as the electric vehicle pallet. Each lifting platform transverse guide rod is equipped with several second guide wheel sets, each second guide wheel set including two second guide wheels symmetrically arranged front and rear, and each second guide wheel is vertically arranged. When the electric vehicle pallet is located on the lifting platform, the guide strip on the bottom surface of the electric vehicle pallet is engaged between the two second guide wheels of the nearest second guide wheel set. When the lifting mechanism controls the lifting platform pallet frame moving guide rail on the lifting platform to align with the charging position transverse pallet frame moving guide rail of a charging position near the lifting platform side of the frame, the lifting platform transverse guide rod is aligned with the nearest parking space transverse guide rod.

[0033] As a preferred technical solution, electric vehicle pallet limiting devices are installed on each longitudinal beam.

[0034] As a preferred technical solution, the electric vehicle pallet limiting device includes rotating longitudinal rods. Each rotating longitudinal rod is connected to a longitudinal side beam on a lateral side near the centroid of the frame via several mounting bearings, or each rotating longitudinal rod is connected to the frame via several mounting bearings and located on a longitudinal side beam on a lateral side near the centroid of the frame. Each end of the rotating longitudinal rod has a stop arm perpendicular to its central axis; each rotating longitudinal rod has several active rotating arms, with the top surfaces of each stop arm and active rotating arm above the top surface of the longitudinal side beam; the rotating longitudinal rod has a spring return assembly. When the lifting mechanism controls the moving guide rail of the lifting platform pallet frame on the lifting platform to align with the moving guide rail of the charging position transverse pallet frame near a charging position on the side of the lifting platform, each stop arm is aligned between the front and rear sides of the pilot frame. During vehicle storage and retrieval, the pilot frame laterally enters the charging position from the lifting platform and contacts the active rotating arm within the charging position, causing it to rotate so that each stop arm is below the top surface of the longitudinal side beam within the charging position. After storage and retrieval, the pilot frame enters the lifting platform, no longer contacting the active rotating arm within the charging position, and each stop arm returns to its original position. During charging, the vehicle drives into the electric vehicle tray on the pilot frame of the lifting platform. The lifting mechanism controls the lifting platform to rise and fall, aligning it with a charging position on the side of the frame closest to the lifting platform. The pilot frame on the lifting platform enters the charging position on the side of the frame closest to the lifting platform, contacting the stop arms within the charging position and rotating so that each stop arm is below the top surface of the longitudinal side beam within the charging position, facilitating the entry of the electric vehicle tray into the charging position. The pilot frame completely delivers the electric vehicle tray into the charging position and returns to the lifting platform. Under the action of the spring return assembly, each stop arm contacts the lateral side of the electric vehicle tray away from the center of the frame, locking the electric vehicle tray within the charging position. After charging is completed, the pilot frame on the lifting platform enters a charging position close to the side of the frame near the lifting platform. The pilot frame contacts the stop arm in the charging position, causing it to rotate so that each stop arm is below the top surface of the longitudinal side beam in the charging position. The pilot frame moves the electric vehicle tray out of the charging position and returns to the lifting platform. The lifting mechanism controls the lifting platform to descend to the ground, and the vehicle drives out from the electric vehicle tray on the pilot frame of the lifting platform.

[0035] As a preferred technical solution, the mounting bearing is provided with a torsion spring or at least one stop arm connected to the longitudinal side beam by a tension spring, or at least one active rotating arm connected to the longitudinal side beam by a tension spring.

[0036] As a preferred technical solution, the lifting mechanism includes lifting motors at the left and right ends of the top of the frame, and each lifting platform is connected to the nearest lifting motor through a lifting chain. The lifting motor is powered by an external power source.

[0037] As a preferred technical solution, each of the left and right ends of the top of the frame is provided with a longitudinal lifting shaft. Each longitudinal lifting shaft is connected to the nearest lifting motor. Each longitudinal lifting shaft is provided with a lifting wheel at its front and rear ends. The lifting wheel at the front end of each lifting wheel is connected to the front end of the nearest lifting platform, and the lifting wheel at the rear end of each lifting wheel is connected to the rear end of the nearest lifting platform through a lifting chain.

[0038] As a preferred technical solution, several fixed pulleys are provided on the side of each lifting wheel on the horizontal top of the frame near the center of the frame. Two parallel counterweight guide rails are provided vertically below the fixed pulley farthest from the lifting wheel on the frame. Counterweights run on the two counterweight guide rails. The lifting chain is connected to each fixed pulley and counterweight.

[0039] As a preferred technical solution, the front and rear ends of the left end of the frame and the front and rear ends of the right end of the frame are all vertically equipped with columns, each column is equipped with a vertical guide rail, and the front and rear ends of each lifting platform are equipped with guide wheels that can clamp the nearest vertical guide rail from the left and right. Attached Figure Description

[0040] Figure 1 This is a southeast isometric view of a preferred embodiment of the electric vehicle three-dimensional charging station of this utility model. Figure 2 yes Figure 1 A magnified view of part A. Figure 3 yes Figure 1 A magnified view of part B. Figure 4 yes Figure 3 A magnified view of part F. Figure 5 yes Figure 4 A magnified view of part G. Figure 6 yes Figure 4 A magnified view of part H. Figure 7 yes Figure 1 A magnified view of part D. Figure 8 yes Figure 7 A magnified view of part I. Figure 9 yes Figure 8 A magnified view of part J. Figure 10 yes Figure 1 A magnified view of part E. Figure 11 yes Figure 10 A magnified view of part K. Figure 12 yes Figure 1 The image shows a bottom view of an electric vehicle charging station. Figure 13 yes Figure 12 A magnified view of part M. Figure 14 yes Figure 13 A magnified view of part O. Figure 15 yes Figure 13 A magnified view of part N. Figure 16 yes Figure 1 The left view of the electric vehicle three-dimensional charging station shown. Figure 17 yes Figure 16 A magnified view of part L. Figure 18 yes Figure 16 A magnified view of part C. Figure 19 yes Figure 1 The image shows a front view of an electric vehicle automated charging station. Figure 20 yes Figure 1 The image shows a top view of an electric vehicle charging station.

[0041] Figure 21 yes Figure 1 The northwest isometric view of the electric vehicle three-dimensional charging station shown. Figure 22 yes Figure 21 A magnified view of part P. Figure 23 yes Figure 21 A magnified view of part Q. Figure 24 yes Figure 21 A magnified view of the R part. Figure 25 yes Figure 24 A magnified view of part S. Figure 26 yes Figure 24 A magnified view of part T. Figure 27 yes Figure 24 A magnified view of the U-shaped portion. Figure 28 yes Figure 1 A schematic diagram of the connection device used in the electric vehicle three-dimensional charging station. Figure 29 yes Figure 28 A magnified view of part V. Figure 30 yes Figure 28 A magnified view of part W. Figure 31 yes Figure 28 Top view of the connecting device. Figure 32 yes Figure 31 A magnified view of part X. Figure 33 yes Figure 28 Connection status diagram of the connection device. Figure 34 yes Figure 33 A magnified view of the Y-section. Figure 35 yes Figure 1 A schematic diagram of the electric vehicle tray limiting device used in the electric vehicle three-dimensional charging station. Figure 36 yes Figure 35 A magnified view of the Z-section. Figure 37 This is a schematic diagram of a pallet limiting device for electric vehicles. Figure 38 yes Figure 37 A magnified view of part a. Figure 39 This is a schematic diagram of a pallet limiting device for electric vehicles. Figure 40 yes Figure 42A magnified view of part b.

[0042] Figure 41 This is a schematic diagram of a connecting device. Figure 42 This is a schematic diagram of a connecting device. Figure 43 yes Figure 42 A magnified view of part c. Figure 44 This is a schematic diagram of a connecting device. Figure 45 This is a schematic diagram of the vehicle entering and exiting the three-dimensional charging station according to this utility model. Figure 46 yes Figure 1 The diagram shows a usage status of an electric vehicle three-dimensional charging station.

[0043] The components include: frame-1; charging layer-11; charging position-12; longitudinal side beam-13; first charging position transverse pallet frame moving rail-14; second charging position transverse pallet frame moving rail-15; parking space transverse guide rod-16; first guide wheel-17; column-18; vertical guide rail-19; mother charging connection group-2; longitudinal center beam-20; first connecting upright plate-21; second connecting upright plate-22; support rod mounting hole-23; support rod-24; spring-25; center blocking body-26; first spring positioning groove-27; second spring positioning groove-28; side blocking body-29; step-210; lifting platform-3; third connecting upright plate-30; pilot frame-31; pilot frame drive motor-32; gear drive motor-33; third charging position transverse pallet frame moving rail-14; first charging position transverse pallet frame moving rail-15; parking space transverse guide rod-16; first guide wheel-17; column-18; vertical guide rail-19; mother charging connection assembly-2; longitudinal center beam-20; first connecting upright plate-21; second connecting upright plate-22; second connecting upright plate-23; support rod-24; support rod-25; spring-26; first spring positioning groove-27; second spring positioning groove-28; side blocking body-29; step-210; lifting platform-3; third connecting upright plate-30; pilot frame-31; pilot frame drive motor-32; gear drive motor-33; third charging position transverse pallet frame moving rail-15; second connecting upright plate-26; third connecting upright plate-37; third connecting upright plate-38; third connecting upright plate-39; second connecting upright plate-21; third connecting upright plate-32; third connecting upright plate-33; third connecting upright plate-34; third connecting upright plate-35; third connecting upright plate-36; third connecting upright plate-37; second connecting upright plate-38; third connecting upright plate-39; second connecting upright plate-21; third connecting upright plate-32 Moving rail - 34; Fourth charging position transverse pallet frame moving rail - 35; Gear - 36; Transport frame guide rail - 37; Longitudinal beam - 38; Pressure roller - 39; Gear mounting plate - 310; Backrest wheel - 311; Lifting platform transverse guide rod - 312; Second guide wheel - 313; Flow guide platform - 314; Guide wheel - 315; Electric vehicle pallet - 4; Transverse traveling wheel - 41; Transverse rack - 42; Guide bar - 43; Sub-charging connection assembly - 44; Lifting motor - 5; Lifting chain - 51; Longitudinal lifting shaft - 52; Lifting wheel - 53; Fixed pulley - 54; Counterweight guide rail - 55; Counterweight - 56; Main guide insertion rod - 6; Main guide sleeve - 61; Precision guide insertion rod - 62; Precision guide insertion hole - 63; Charging contact - 64; Charging auxiliary contact - 65; Rotating longitudinal bar - 7; Stop arm - 71; Mounting bearing - 72; Active rotating arm - 73; Torsion spring - 74; Tension spring - 75; Rolling wheel - 76; Fall arrestor - 8; Electric vehicle - 9; Ground access passage - 91. Detailed Implementation

[0044] The present invention will now be further described in conjunction with the accompanying drawings and embodiments.

[0045] Example 1. As... Figure 1-39 As shown, an electric vehicle three-dimensional charging station is characterized by comprising:

[0046] The frame 1 is a frame structure with five vertically arranged charging layers 11. Each charging layer 11 includes two symmetrical charging positions 12. Each charging position 12 of each charging layer 11 is equipped with a female charging connection component 2. The female charging connection component 2 is installed between the two charging positions 12 on the frame. Each female charging connection component 2 is externally connected to a charging pile. Two lifting platforms 3 are respectively located close to the left and right ends of the frame 1. Each lifting platform 3 is connected to the frame 1 via a lifting mechanism and can move vertically. Each lifting platform 3 is equipped with a tray lateral movement drive device. Ten electric vehicle trays 4 are located on the charging positions 12 or lifting platforms 3. Each electric vehicle tray 4 has a sub-charging connection component 44 on its lateral side near the center of the frame 1. The sub-charging connection component 44 on each electric vehicle tray 4 is connected via a line to at least one charging gun installed on the electric vehicle tray 4 (not shown in the diagram).

[0047] Each charging position 12 is provided with a horizontal pallet frame moving guide rail below it, and each lifting platform 3 is provided with a lifting platform pallet frame moving guide rail. When the lifting mechanism controls the lifting platform pallet frame moving guide rail on the lifting platform 3 to align with the horizontal pallet frame moving guide rail of the charging position 12 on the side of the frame 1 closest to the lifting platform 3, the pallet lateral movement drive device can control the electric vehicle pallet 4 on the lifting platform 3 to enter the charging position 12 and make the sub-charging connection component 44 dock with a female charging connection component 2, or control the electric vehicle pallet 4 on the charging position 12 to enter the lifting platform 3.

[0048] In this embodiment, nine of the ten electric vehicle trays 4 are located on the charging positions 12, and one is located on the lifting platform 3 on the right side of the frame. The female charging connection assembly 2 is connected to the frame through a position self-adjustment device. The position self-adjustment device includes a first connecting plate 21, a second connecting plate 22 located on the side of the first connecting plate 21 away from the center of the frame 1 in the lateral direction, and a third connecting plate 30 located on the electric vehicle tray 4; the first connecting plate 21 is provided with four support rod mounting holes 23 in the lateral direction, and a support rod 24 is hinged to each support rod mounting hole 23. The end of each support rod 24 away from the center of the frame 1 in the lateral direction is fixed to the second connecting plate 22.

[0049] A longitudinal beam 20 is provided between the two charging positions 12 of each charging layer 11 on the frame 1, and each second connecting plate 22 is connected to the longitudinal beam 20; the female charging connection assembly 2 is installed on the second connecting plate 22; the female charging connection assembly 44 is installed on the third connecting plate 30. Figure 28-34As shown, each support rod 24 is fitted with a spring 25, one end of which contacts the first connecting plate 21, and the other end contacts the second connecting plate 22. The female charging connection assembly 2 is installed on the second connecting plate 22. Insertable guide assemblies are provided on the lateral side of the second connecting plate 22 away from the center of the frame 1, and on the lateral side of the third connecting plate 30 near the center of the frame 1. Figure 28-34 As shown, the insertable guide assembly includes two main guide rods 6 and a number of main guide sleeves 61 equal to the number of main guide rods 6; each electric vehicle tray 4 is connected to the sub-charging connection assembly 44 via a third connecting plate 30 on the lateral side near the center of the frame 1. When the sub-charging connection assembly 44 docks with a female charging connection assembly 2, each main guide rod 6 inserts into a main guide sleeve 61. Specifically, two guide rods 6 are laterally provided on the lateral side of the second connecting plate 22 away from the center of the frame 1, and corresponding main guide sleeves 61 are laterally provided on the lateral side of each third connecting plate 30 near the center of the frame 1. The diameter of the main guide rods 6 gradually decreases laterally away from the center of the frame 1, forming a pointed tip.

[0050] Each female charging connector 2 has a corresponding horizontally inserted precision guide component on its side away from the center of the frame 1, and each female charging connector 44 has a corresponding horizontally inserted precision guide hole 63 on its side near the center of the frame 1. Two precision guide rods 62 are horizontally positioned on the side of the female charging connector 2 away from the center of the frame 1, and two precision guide holes 63 are horizontally positioned on the side of the female charging connector 44 near the center of the frame 1. The diameter of the precision guide rods 62 gradually decreases in diameter along the direction away from the center of the frame 1, forming a pointed tip. When a female charging connector 44 is connected to a female charging connector 2, each precision guide rod 62 is inserted into a precision guide hole 63. Each of the four corners of the first connecting plate 21 has a support rod mounting hole 23.

[0051] On the side of the first connecting plate 21 near the second connecting plate 22, a first spring positioning groove 27 is coaxially provided on the outer side of each support rod mounting hole. On the side of the second connecting plate 22 near the first connecting plate 21, a second spring positioning groove 28 is coaxially provided on the outer side of each support rod. The two ends of each spring are respectively inserted into the nearest first spring positioning groove 27 and the nearest second spring positioning groove 28. When vibration occurs, when the second connecting plate moves slightly along the normal direction perpendicular to the second connecting plate and away from the center of the side of the first connecting plate, the spring provides a centripetal force to the second connecting plate to return it to its initial position, automatically adjusting the second connecting plate back to its initial position, which facilitates alignment.

[0052] Each support rod 21 is inserted into its mounting hole 23, with a movable gap between the portion of each support rod inserted into the mounting hole 23 and the mounting hole 23. The diameter of the portion of each support rod 24 inserted into the mounting hole 23 is smaller than the diameter of the rest of the support rod 24, thus forming a step 210 on the support rod 24. A side stop 29 is provided at the end of the support rod 24 furthest from the second connecting plate 22, and the distance between the side stop 29 and the step 210 is greater than the thickness of the first connecting plate. A washer 291 is fitted between the side stop 29 and the first connecting plate 21. The washer 291 increases the stress-bearing area. Each support rod has a movable gap between its insertion portion into the support rod mounting through hole and the through hole itself. This allows the second connecting plate to function as a cantilever structure mounted on the first connecting plate, capable of slight movement along a normal direction perpendicular to the second connecting plate and away from the center of the first connecting plate's side surface. Each support rod is fitted with a spring, allowing the second connecting plate to move slightly during vibration. When the insertable main guide devices align, the springs press against the second connecting plate, ensuring a tight connection of the charging connection components even with slight misalignment between the second and third connecting plates. The end of each support rod away from the second connecting plate can be hinged to the support rod mounting through hole. As long as the difference between the support rod diameter and the support rod mounting through hole diameter is constant, and the distance between the step and the side stop or the distance between the side stop and the center stop is constant, the maximum movable angle between the support rod and the central axis of the support rod mounting through hole is also constant. The side stop 29 is threaded to the support rod 24 for easy position adjustment.

[0053] Each female charging connector 2 has thirteen contacts, and each female charging connector 44 has contacts corresponding to the contacts on the female charging connector 2. When the female charging connector 2 and the female charging connector 44 are connected, the contacts on the female charging connector 2 and the corresponding contacts on the female charging connector 44 make contact. The contacts are either plugs or sockets. The contacts include charging contacts 64. Each female charging connector 2 and female charging connector 44 has three charging contacts 64. Of the three charging contacts 64, one is a DC power positive contact, one is a DC power negative contact, and one is a grounding contact. When the female charging connector 2 and the female charging connector 44 are connected, the two DC power positive contacts, the two DC power negative contacts, and the grounding contact make contact. The contacts include ten charging auxiliary contacts 65, which are: six communication contacts, two charging connection contacts, and two low-voltage auxiliary power contacts. This technical solution facilitates the control system's acquisition of battery charging information and control of the charging process. The electric vehicle three-dimensional charging station includes a control system, which is connected to the charging stack, the main charging connection assembly 2, the lifting mechanism, and the tray lateral movement drive device. A lateral travel wheel set is installed at the front and rear ends of the bottom surface of the electric vehicle tray 4, and the lateral travel wheel set includes two lateral travel wheels 41. A lateral rack 42 is installed between the two lateral travel wheel sets on the bottom surface of the electric vehicle tray 4, and the rear side of the lateral rack 42 has several teeth. A charging tray frame is provided below the charging position 12. The charging tray frame includes a longitudinal side beam 13 located laterally away from the centroid of the frame at the bottom end of the charging position 12. The front end of the top surface of the longitudinal side beam 13 is laterally connected to a first charging position horizontal tray frame moving rail 14, and the rear end of the top surface of the longitudinal side beam 13 is laterally connected to a second charging position horizontal tray frame moving rail 15.

[0054] When all electric vehicle trays 4 are positioned at charging positions 12, the lateral wheels 41 at the front end of the electric vehicle tray 4 are located on the first charging position horizontal tray frame moving rail 14, and the lateral wheels 41 at the rear end of the electric vehicle tray 4 are located on the second charging position horizontal tray frame moving rail 15. Each sub-charging connection component 44 on the electric vehicle tray 4 docks with the nearest female charging connection component 2. The tray lateral movement drive device includes a laterally movable pilot frame 31 mounted on the lifting platform 3, with a pilot frame drive motor 32 and a gear drive motor 33 mounted on the pilot frame 31. The lifting platform tray frame moving rails include a third charging position horizontal tray frame moving rail 34 and a fourth charging position horizontal tray frame moving rail 35. The third charging position horizontal tray frame moving rail 34 is located on the front side of the pilot frame 31 on the lifting platform 3, and the fourth charging position horizontal tray frame moving rail 35 is located on the rear side of the pilot frame 31 on the lifting platform 3; several gears 36 with their central axes vertically arranged are arranged laterally at the top of the pilot frame 31. Figure 10As shown, the gear 36 closest to the frame is connected to the drive wheel 331 of the gear drive motor 33 via a transmission chain 361. When the electric vehicle pallet 4 is located on the lifting platform 3, the lateral travel wheel 41 at the front end of the electric vehicle pallet 4 is located on the third charging position horizontal pallet frame moving rail 34, and the lateral travel wheel 41 at the rear end of the electric vehicle pallet 4 is located on the fourth charging position horizontal pallet frame moving rail 35.

[0055] When the lifting mechanism controls the moving guide rail of the lifting platform tray frame on the lifting platform 3 to align with the moving guide rail of the horizontal tray frame of the charging position on the side of the frame 1 closest to the lifting platform 3, the moving guide rail 34 of the third charging position horizontal tray frame aligns with the moving guide rail 14 of the first charging position horizontal tray frame, the moving guide rail 35 of the fourth charging position horizontal tray frame aligns with the moving guide rail 15 of the second charging position horizontal tray frame, and each gear 36 aligns with the toothed surface of the transverse rack 42 on the electric vehicle tray 4. Figure 9-10 As shown, the pilot frame drive motor 32 is located at the bottom of the pilot frame 31. The pilot frame drive motor 32 is connected to the driven wheel 317 located at the bottom of the pilot frame 31 via a frame drive chain 316, which is connected to the pilot frame 31. The lifting platform 3 includes two longitudinal beams 38, and two parallel transport frame guide rails 37 are arranged laterally between the two longitudinal beams 38. The top and bottom ends of each transport frame guide rail 37 are connected to pressure rollers 39 that are longitudinally arranged along the central axis and protrude towards the other transport frame guide rail 37. The pressure rollers 39 at the top of each transport frame guide rail 37 are in contact with the top surface of the pilot frame 31, and the pressure rollers 39 at the bottom of each transport frame guide rail 37 are in contact with the bottom surface of the pilot frame 31. The bottom end of the guide rail 37 of the transport frame is longitudinally provided with two drive chain support wheels 317 and a pilot frame drive motor 32. The two drive chain support wheels 317 are connected to the drive chain 316, and one of the drive chain support wheels is connected to the pilot frame drive motor 32. The pilot frame 31 is longitudinally provided with several gear mounting plates 310, and each gear mounting plate 310 is equipped with a gear 36. The gear drive motor 33 is located at the bottom end of the pilot frame 31, closest to the frame 1, and is connected to the gear drive motor 33 via a transmission chain 361.

[0056] Each gear mounting plate 310 is vertically equipped with a backrest wheel 311. When the lifting mechanism controls the moving guide rail of the lifting platform tray frame on the lifting platform 3 to align with the moving guide rail of the charging position transverse tray frame of the frame 1 near the side of the lifting platform 3, each backrest wheel 311 aligns with the toothless side of the transverse rack 42 on the electric vehicle tray 4. Several guide strips 43 are transversely provided on the bottom surface of the electric vehicle tray 4. The longitudinal side beam 13 is transversely connected to the same number of parking space transverse guide rods 16 as the guide strips 43 near the center of the frame. Several first guide wheel sets are installed on each parking space transverse guide rod 16. Each first guide wheel set includes two first guide wheels 17 symmetrically arranged front and rear, and each first guide wheel 17 is vertically arranged. When the electric vehicle tray 4 is located in the charging position 12, the guide strips 43 on the bottom surface of the electric vehicle tray 4 in each charging position 12 are engaged between the two first guide wheels 17 of the nearest first guide wheel set. The purpose of setting the guide strips 43 is to further prevent the electric vehicle tray 4 from shaking when entering and leaving the charging position 12.

[0057] A horizontal guide rod 312, the same number as the guide strip 43 on the electric vehicle pallet 4, is provided between the two longitudinal beams 38. Each horizontal guide rod 312 is equipped with several sets of second guide wheels 313, each set including two symmetrically arranged second guide wheels 313, all vertically oriented. When the electric vehicle pallet 4 is on the lifting platform 3, the guide strip 43 on the bottom surface of the electric vehicle pallet 4 engages with the two second guide wheels 313 of the nearest set of second guide wheels 313. When the lifting mechanism controls the moving guide rail of the lifting platform pallet frame on the lifting platform 3 to align with the moving guide rail of the charging position horizontal pallet frame of the charging position 12 on the side of the frame 1 closest to the lifting platform 3, the horizontal guide rod 312 of the lifting platform aligns with the horizontal guide rod 16 of the nearest parking space. Each longitudinal beam 13 is equipped with an electric vehicle pallet limiting device. Figures 35-36As shown, the electric vehicle pallet limiting device includes a rotating longitudinal rod 7; each rotating longitudinal rod 7 is connected to the transverse side of a longitudinal beam 13 near the centroid of the frame 1 via several mounting bearings 72. Stop arms 71 perpendicular to the central axis are provided at both ends of the rotating longitudinal rod 7; two active rotating arms 73 are provided in the upper middle part of the rotating longitudinal rod 7, with the top surfaces of each stop arm 71 and active rotating arm 73 located above the top surface of the longitudinal beam 13; a spring return assembly is provided on the rotating longitudinal rod 7. When the lifting mechanism controls the moving guide rail of the lifting platform pallet frame on the lifting platform 3 to align with the moving guide rail of the charging position transverse pallet frame of the frame 1 near the charging position 12 on the side of the lifting platform 3, each stop arm 71 is aligned between the front and rear sides of the pilot frame 31. When the pilot frame 31 enters the charging position 12 laterally from the lifting platform and contacts the active rotating arm 73 in the charging position 12, the rotating rod 7 rotates so that each stop arm 71 is below the top surface of the longitudinal side beam 13 in the charging position 12; after the vehicle is stored or retrieved, the pilot frame 31 enters the lifting platform 3, the pilot frame 31 does not contact the active rotating arm 73 in the charging position 12, and each stop arm 71 is reset.

[0058] During charging, the vehicle drives into the electric vehicle tray on the pilot frame 31 of the lifting platform 3. The lifting mechanism controls the lifting platform 3 to rise and fall, aligning it with a charging position 12 on the side of the frame 1 closest to the lifting platform 3. The pilot frame 31 on the lifting platform 3 then enters the charging position 12 on the side of the frame 1 closest to the lifting platform 3. Figure 24-27 As shown, the pilot frame 31 contacts the stop arms 71 within the charging position 12. Rotating the pilot frame 31 positions each stop arm 71 below the top surface of the longitudinal beam 13 within the charging position 12, facilitating the entry of the electric vehicle tray into the charging position 12. The gears and gears 36 on the pilot frame 31 rotate counterclockwise, pushing the transverse rack 42 on the bottom surface of the electric vehicle tray 4 into the charging position 12. When the pilot frame 31 has fully inserted the electric vehicle tray into the charging position 12 and returns to the lifting platform 3, each stop arm 71, under the action of the spring return assembly, contacts the lateral side of the electric vehicle tray away from the center of the frame, locking the electric vehicle tray within the charging position 12. Preferably, the lateral side of the electric vehicle tray away from the center of the frame has a chamfer to facilitate the stop arms 71 abutting against it. After charging is completed, the pilot frame 31 on the lifting platform 3 enters a charging position 12 on the side of the frame 1 closest to the lifting platform 3. The pilot frame 31 contacts the stop arm 71 in the charging position 12, causing it to rotate so that each stop arm 71 is below the top surface of the longitudinal side beam 13 in the charging position 12. The gear on the pilot frame 31 contacts the transverse rack 42 on the bottom surface of the electric vehicle tray 4. As the gear rotates clockwise, the electric vehicle tray is moved out of the charging position 12 and returned to the lifting platform 3. The lifting mechanism controls the lifting platform 3 to descend to the ground, and the vehicle drives out from the electric vehicle tray on the pilot frame 31 of the lifting platform 3.

[0059] A torsion spring 74 is mounted on the bearing 72. The torsion spring 74 has the function of controlling the reset of the stop arm 71. A rolling wheel 76 is longitudinally provided at the top of each stop arm 71 or the active rotating arm 73. A guide platform 314 is provided between the front end and the rear end of the two longitudinal beams 38. When the electric vehicle pallet 4 is located on the lifting platform 3, the top surface of the two guide platforms 314 is aligned with the top surface of the electric vehicle pallet 4. The lifting mechanism includes lifting motors 5 located at the left and right ends of the top of the frame 1. Each lifting platform 3 is connected to the nearest lifting motor 5 through a lifting chain 51. The lifting motor 5 is externally powered. Specifically, each of the left and right ends of the top of the frame 1 is provided with a longitudinal lifting shaft 52. Each longitudinal lifting shaft 52 is connected to the nearest lifting motor 5. Each longitudinal lifting shaft 52 is provided with a lifting wheel 53 at its front and rear ends. The lifting wheel 53 at the front end of each lifting wheel 53 is connected to the front end of the nearest lifting platform 3, and the lifting wheel 53 at the rear end of each lifting wheel 53 is connected to the rear end of the nearest lifting platform 3 through a lifting chain 51.

[0060] At the top of the frame, two fixed pulleys 54 are provided near the center of each lifting wheel 53 on the horizontal side. Below the fixed pulley 54 furthest from the lifting wheel 53, two parallel counterweight guide rails 55 are vertically arranged. A counterweight 56 ​​runs on the two counterweight guide rails 55. The lifting chain 51 is connected to each fixed pulley 54 and counterweight 56. Vertical columns 18 are provided at the front and rear ends of the left end and the front and rear ends of the right end of the frame 1. Each column 18 has a vertical guide rail 19. The front and rear ends of each lifting platform 3 have guide wheels 315 that can clamp the nearest vertical guide rail 19. A fall arrestor 8, which can slide on the vertical guide rail 19, is installed on each vertical guide rail 19. The fall arrestor 8 is an electromagnetic brake. A ladder 81 is vertically arranged at the front or rear end of the frame 1. Support rods are hinged to the mounting holes of the support rods, so the second connecting plate is essentially a cantilever structure mounted on the first connecting plate that can move slightly along the normal direction perpendicular to the second connecting plate and away from the center of the side of the first connecting plate. Each support rod is fitted with a spring. When vibration occurs, the second connecting plate can move slightly. When the insertable main connecting guide devices are connected, the springs press the second connecting plate tightly. Even if the second and third connecting plates are slightly misaligned, the female charging connection assembly 2 and the female charging connection assembly 44 on the second and third connecting plates can be tightly connected.

[0061] During operation, the lifting platform is raised by the lifting mechanism and aligned with a charging position 12 equipped with a vehicle carrier. The pallet lateral movement drive moves the vehicle carrier of the charging position 12 onto the lifting platform. Then, the lifting platform 3 is lowered to the ground by the lifting mechanism. The electric vehicle to be charged is driven onto the electric vehicle pallet 4 on the lifting platform, and the charging gun is inserted into the charging part of the electric vehicle. The driver leaves the lifting platform. The lifting platform is raised again by the lifting mechanism and aligned with an empty charging position 12. The pallet lateral movement drive controls the electric vehicle pallet 4 on the lifting platform to enter the charging position 12 and connects the sub-charging connection assembly 44 with the sub-charging connection assembly 44 in the target charging position 12. Then, the charging pile supplies power, and the charging gun begins to charge the electric vehicle. After charging is completed, the lifting platform is raised again by the lifting mechanism and aligned with the charging position where charging is completed. The pallet lateral movement drive controls the electric vehicle pallet 4 on the target charging position to enter the lifting platform, and the lifting mechanism lowers the lifting platform to the ground. The driver removes the charging gun from the charging part of the electric vehicle, and the driver drives away from the lifting platform.

[0062] Example 2. (As shown) Figures 40-41 As shown, the difference between this embodiment and Embodiment 1 is that each rotating longitudinal rod is connected to the transverse side of a longitudinal beam near the centroid of the frame via several mounting bearings. An active rotating arm 73 is connected to the longitudinal beam 13 via a tension spring 75.

[0063] Example 3. (As shown) Figures 42-43 As shown, the difference between this embodiment and Embodiment 1 is that each rotating longitudinal rod is connected to the transverse side of a longitudinal beam near the centroid of the frame via several mounting bearings. A stop arm 71 is connected to the longitudinal beam 13 via a tension spring 75.

[0064] Example 4. (As shown) Figure 44 As shown, the difference between this embodiment and embodiment 1 is that: the second connecting plate 22 is provided with a number of main guide rods 6 on the side away from the center of the frame 1 in the lateral direction, and the third connecting plate 30 is provided with a corresponding position on the side near the center of the frame 1 in the lateral direction, and the main guide sleeve 61 is provided with a flared mouth at the end near the center of the frame 1 in the lateral direction.

[0065] Example 5. (As shown) Figures 45-46As shown, the difference between this embodiment and Embodiment 1 is that: a side blocking body 29 is provided at the end of the support rod 24 away from the second connecting plate 22, and a middle blocking body 26 is provided on the side of the first connecting plate 21 on the support rod 24 near the second connecting plate 22. The distance between the side blocking body 29 and the middle blocking body 26 is greater than the thickness of the first connecting plate. Several main guide sleeves 61 are provided laterally on the side of the second connecting plate 22 away from the center of the frame 1, and corresponding main guide insertion rods 6 are provided laterally on the side of each third connecting plate 30 near the center of the frame 1. The diameter of the main guide insertion rods 6 gradually decreases laterally towards the center of the frame 1, forming a pointed tip. Several precise main guide insertion holes are provided laterally on the side of the female charging connector 2 away from the center of the frame 1, and corresponding precise guide insertion rods 62 are provided laterally on the side of each female charging connector 44 near the center of the frame 1. The diameter of the precise guide insertion rods 62 gradually decreases laterally towards the center of the frame 1, forming a pointed tip.

[0066] Example 6. The difference between this example and Example 1 is that: the second connecting plate 22 is provided with a number of main guide sleeves 61 on the side away from the center of the frame 1 in the lateral direction, and the third connecting plate 30 is provided with a main guide insert 6 at a corresponding position on the side near the center of the frame 1 in the lateral direction, and the main guide sleeve 61 is provided with a flared mouth at the end away from the center of the frame 1 in the lateral direction.

Claims

1. A three-dimensional charging station for electric vehicles, characterized in that, include: The frame (1) is a frame structure, and several charging layers (11) are arranged vertically on the frame (1). Each charging layer (11) includes two charging positions (12) that are symmetrical on the left and right. Each charging position (12) of each charging layer (11) on the frame (1) is provided with a female charging connection component (2). The female charging connection component (2) is installed between the two charging positions (12) on the frame. Each female charging connection component (2) is connected to an external charging pile. Two lifting platforms (3) are respectively set close to the left and right ends of the frame (1). Each lifting platform (3) is connected to the frame (1) through a lifting mechanism and can move vertically. Each lifting platform (3) is equipped with a pallet lateral movement drive device. Several electric vehicle trays (4), each electric vehicle tray (4) is located on a charging position (12) or a lifting platform (3), and each electric vehicle tray (4) has a sub-charging connection component (44) on the side of the frame (1) in the horizontal direction; the sub-charging connection component (44) on each electric vehicle tray (4) is connected to at least one charging gun set on the electric vehicle tray (4) through a line; Each charging position (12) is provided with a horizontal pallet frame moving guide rail below it, and each lifting platform (3) is provided with a lifting platform pallet frame moving guide rail. When the lifting mechanism controls the lifting platform pallet frame moving guide rail on the lifting platform (3) to align with the horizontal pallet frame moving guide rail of the charging position (12) on the side of the frame (1) close to the lifting platform (3), the pallet lateral movement drive device can control the electric vehicle pallet (4) on the lifting platform (3) to enter the charging position (12) and make the sub-charging connection component (44) dock with a female charging connection component (2), or control the electric vehicle pallet (4) on the charging position (12) to enter the lifting platform (3).

2. The electric vehicle three-dimensional charging station as described in claim 1, characterized in that: The mother charging connection assembly (2) is connected to the frame through a position self-adjustment device; the position self-adjustment device includes a first connecting plate (21), a second connecting plate (22) located on the side of the first connecting plate (21) away from the center of the frame (1) in the lateral direction, and a third connecting plate (30) located on the electric vehicle tray (4); the first connecting plate (21) is provided with a plurality of support rod mounting holes (23) in the lateral direction, and a support rod (24) is hinged on each support rod mounting hole (23), and the end of each support rod (24) away from the center of the frame (1) in the lateral direction is fixed to the second connecting plate (22); Each support rod (24) is fitted with a spring (25), one end of the spring (25) is in contact with the first connecting plate (21), and the other end is in contact with the second connecting plate (22); A longitudinal beam (20) is provided between the two charging positions (12) of each charging layer (11) on the frame (1), and each second connecting plate (22) is connected to the longitudinal beam (20); the mother charging connection assembly (2) is installed on the second connecting plate (22); the daughter charging connection assembly (44) is installed on the third connecting plate (30); Insertable guide components are provided on the side of the second connecting plate (22) away from the center of the frame (1) in the lateral direction, and on the side of the third connecting plate (30) close to the center of the frame (1) in the lateral direction.

3. The electric vehicle three-dimensional charging station as described in claim 2, characterized in that: The insertable guide assembly includes several main guide rods (6) and a number of main guide sleeves (61) equal to the number of main guide rods (6). When the sub-charging docking assembly (44) docks with a female charging docking assembly (2), each main guide rod (6) inserts into a main guide sleeve (61). The side of each electric vehicle tray (4) on the lateral side near the center of the frame (1) is connected to the sub-charging docking assembly (44) through a third connecting plate (30). The second connecting plate (22) has several main directional inserts (6) on its lateral side away from the center of the frame (1), and the third connecting plate (30) has corresponding main directional sleeves (61) on its lateral side close to the center of the frame (1). The diameter of the main directional inserts (6) gradually decreases in the lateral direction away from the center of the frame (1) to form a pointed tip. or, The second connecting plate (22) has several main guide sleeves (61) on its lateral side away from the center of the frame (1), and the third connecting plate (30) has corresponding main guide inserts (6) on its lateral side close to the center of the frame (1). The diameter of the main guide inserts (6) gradually decreases in the lateral direction close to the center of the frame (1) to form a pointed tip. or, The second connecting plate (22) has several main directional inserts (6) on its lateral side away from the center of the frame (1), and each third connecting plate (30) has a corresponding main directional sleeve (61) on its lateral side close to the center of the frame (1). The main directional sleeve (61) has a flared end close to the center of the frame (1). or, The second connecting plate (22) is provided with several main guide sleeves (61) on the side away from the center of the frame (1) in the lateral direction. The third connecting plate (30) is provided with a main guide insert (6) at the corresponding position on the side close to the center of the frame (1) in the lateral direction. The main guide sleeve (61) is provided with a flared mouth at the end away from the center of the frame (1) in the lateral direction.

4. The electric vehicle three-dimensional charging station as described in claim 2, characterized in that: Each mother charging connector (2) has an insertable precision guide component on the side away from the center of the frame (1) on the lateral side, and each daughter charging connector (44) has an insertable precision guide component on the side close to the center of the frame (1) on the lateral side. The insertable precision guide component includes several precision guide rods (62) and several precision guide holes (63). The mother charging connector (2) has several precision guide rods (62) on its lateral side away from the center of the frame (1), and each sub-charging connector (44) has a corresponding precision guide hole (63) on its lateral side close to the center of the frame (1). The diameter of the precision guide rods (62) gradually decreases in the lateral direction away from the center of the frame (1) to form a pointed tip. or, The mother charging connector (2) has several precision guide holes (63) on the side away from the center of the frame (1) in the lateral direction. Each sub-charging connector (44) has a precision guide rod (62) on the side close to the center of the frame (1) in the lateral direction. The diameter of the precision guide rod (62) gradually decreases in the lateral direction close to the center of the frame (1) to form a pointed tip. When the sub-charging connector (44) docks with a female charging connector (2), each precision guide pin (62) is inserted into a precision guide socket (63).

5. The electric vehicle three-dimensional charging station as described in claim 2, characterized in that: On the side of the first connecting plate (21) near the second connecting plate (22), a first spring positioning groove (27) is provided coaxially on the outer side of the mounting through hole of each support rod. On the side of the second connecting plate (22) near the first connecting plate (21), a second spring positioning groove (28) is provided coaxially on the outer side of each support rod. The two ends of each spring are respectively inserted into the nearest first spring positioning groove (27) and the nearest second spring positioning groove (28).

6. The electric vehicle three-dimensional charging station as described in claim 2, characterized in that: Each support rod is inserted into a support rod mounting hole (23), and there is a movable gap between the part of each support rod inserted into the support rod mounting hole (23) and the support rod mounting hole (23); The diameter of the portion of each support rod (24) inserted into the support rod mounting hole (23) is smaller than the diameter of the rest of the support rod (24), thus forming a step (210) on the support rod (24). The end of the support rod (24) away from the second connecting plate (22) is provided with a side stop (29). The distance between the side stop (29) and the step (210) is greater than the thickness of the first connecting plate. or, The support rod (24) is provided with a side blocking body (29) at the end away from the second connecting plate (22), and a middle blocking body (26) is provided on the side of the first connecting plate (21) on the support rod (24) near the second connecting plate (22). The distance between the side blocking body (29) and the middle blocking body (26) is greater than the thickness of the first connecting plate.

7. The electric vehicle three-dimensional charging station as described in claim 2, characterized in that: Each mother charging connector (2) is provided with a plurality of charging contacts (64) and a plurality of charging auxiliary contacts (65), and each daughter charging connector (44) is provided with charging contacts (64) and charging auxiliary contacts (65) respectively corresponding to each charging contact (64) and charging auxiliary contact (65) on the mother charging connector (2); the charging auxiliary contact (65) is one or more of a communication contact, a charging connection contact, and a low-voltage auxiliary power supply contact.

8. The electric vehicle three-dimensional charging station as described in claim 1, characterized in that: The electric vehicle three-dimensional charging station includes a control system, which is connected to the charging pile, the main charging connection component (2), the lifting mechanism, and the tray lateral movement drive device.

9. The electric vehicle three-dimensional charging station as described in claim 1, characterized in that: A transverse walking wheel set is installed at the front and rear ends of the bottom surface of the electric vehicle pallet (4). The transverse walking wheel set includes several transverse walking wheels (41). A transverse rack (42) is installed between the two transverse walking wheel sets on the bottom surface of the electric vehicle pallet (4). The front or rear side of the transverse rack (42) is provided with several teeth.

10. An electric vehicle three-dimensional charging station as described in claim 9, characterized in that: Each charging position (12) has a longitudinal side beam (13) located below the end of the frame away from the centroid. The horizontal pallet frame moving guide rail of the charging position includes a first horizontal pallet frame moving rail (14) and a second horizontal pallet frame moving rail (15). The first horizontal pallet frame moving rail (14) is connected to the front end of the top surface of the longitudinal side beam (13) in the horizontal direction, and the second horizontal pallet frame moving rail (15) is connected to the rear end of the top surface of the longitudinal side beam (13). When all the electric vehicle trays (4) are in the charging positions (12), the lateral travel wheels (41) at the front end of the electric vehicle trays (4) are on the first charging position horizontal tray frame moving rail (14), and the lateral travel wheels (41) at the rear end of the electric vehicle trays (4) are on the second charging position horizontal tray frame moving rail (15). Each sub-charging connection component (44) on the electric vehicle trays (4) is connected to the nearest female charging connection component (2).

11. The electric vehicle three-dimensional charging station as described in claim 10, characterized in that: The pallet lateral movement drive device includes a laterally movable pilot frame (31) set on the lifting platform (3), and a pilot frame drive motor (32) and a gear drive motor (33) are provided on the pilot frame (31). The lifting platform pallet frame moving guide rail includes a third charging position horizontal pallet frame moving rail (34) and a fourth charging position horizontal pallet frame moving rail (35); the third charging position horizontal pallet frame moving rail (34) is provided on the front side of the pilot frame (31) on the lifting platform (3), and the fourth charging position horizontal pallet frame moving rail (35) is provided on the rear side of the pilot frame (31) on the lifting platform (3); several gears (36) with their central axes arranged vertically are arranged horizontally at the top of the pilot frame (31), and the gear (36) closest to the frame is connected to the gear drive motor (33); When the electric vehicle pallet (4) is on the lifting platform (3), the lateral travel wheel (41) at the front end of the electric vehicle pallet (4) is on the third charging position horizontal pallet frame moving rail (34), and the lateral travel wheel (41) at the rear end of the electric vehicle pallet (4) is on the fourth charging position horizontal pallet frame moving rail (35). When the lifting mechanism controls the lifting platform (3) to align the lifting platform tray frame moving guide rail with the charging position horizontal tray frame moving guide rail of the charging position (12) on the side of the frame (1) near the lifting platform (3), the third charging position horizontal tray frame moving rail (34) is aligned with the first charging position horizontal tray frame moving rail (14), the fourth charging position horizontal tray frame moving rail (35) is aligned with the second charging position horizontal tray frame moving rail (15), and each gear (36) is aligned with the toothed face of the transverse rack (42) on the electric vehicle tray (4).

12. The electric vehicle three-dimensional charging station as described in claim 11, characterized in that: The lifting platform (3) includes two longitudinal beams (38), and two parallel transport frame guide rails (37) are arranged horizontally between the two longitudinal beams (38). Each transport frame guide rail (37) has a pressure roller (39) that is longitudinally arranged along the central axis and protrudes towards the other transport frame guide rail (37) at its top and bottom ends. The pressure roller (39) at the top of each transport frame guide rail (37) contacts the top surface of the pilot frame (31), and the pressure roller (39) at the bottom of each transport frame guide rail (37) contacts the bottom surface of the pilot frame (31).

13. The electric vehicle three-dimensional charging station as described in claim 12, characterized in that: One of the transport frame guide rails (37) has two drive chain support wheels (316) and a pilot frame drive motor (32) longitudinally arranged at the bottom end. The two drive chain support wheels (316) are connected to the drive chain (317), and one of the drive chain support wheels (316) is connected to the pilot frame drive motor (32).

14. The electric vehicle three-dimensional charging station as described in claim 11, characterized in that: A number of gear mounting plates (310) are longitudinally provided on the pilot frame (31), and a gear (36) is installed on each gear mounting plate (310).

15. An electric vehicle three-dimensional charging station as described in claim 14, characterized in that: Each gear mounting plate (310) is vertically provided with a backrest wheel (311); when the lifting mechanism controls the lifting platform (3) to move the lifting platform tray frame moving guide rail and the charging position horizontal tray frame moving guide rail of the frame (1) near the charging position (12) on the side of the lifting platform (3), each backrest wheel (311) is aligned with the toothless face of the transverse rack (42) on the electric vehicle tray (4).

16. The electric vehicle three-dimensional charging station as described in claim 10, characterized in that: Several guide strips (43) are provided horizontally on the bottom surface of the electric vehicle tray (4); The longitudinal side beam (13) is connected to the same number of parking space transverse guide rods (16) as the guide strips (43) on the side closest to the center of the frame; each parking space transverse guide rod (16) is equipped with several first guide wheel groups, each first guide wheel group includes two first guide wheels (17) arranged symmetrically front and rear, and each first guide wheel (17) is arranged vertically; when the electric vehicle pallet (4) is located in the charging position (12), the guide strip (43) on the bottom surface of the electric vehicle pallet (4) in each charging position (12) is engaged between the two first guide wheels (17) of the nearest first guide wheel group; A horizontal guide bar (312) of the lifting platform is provided between the two longitudinal beams (38), which is the same number as the guide bar (43) on the electric vehicle pallet (4). Several sets of second guide wheels (313) are installed on each horizontal guide bar (312). Each set of second guide wheels (313) includes two second guide wheels (313) arranged symmetrically in front and behind. Each second guide wheel (313) is arranged vertically. When the electric vehicle pallet (4) is located on the lifting platform (3), the guide bar (43) on the bottom surface of the electric vehicle pallet (4) is engaged between the two second guide wheels (313) of the nearest set of second guide wheels (313). When the lifting mechanism controls the lifting platform (3) to align the lifting platform pallet frame moving guide rail with the charging position horizontal pallet frame moving guide rail of the charging position (12) on the side of the frame (1) near the lifting platform (3), the lifting platform horizontal guide rod (312) is aligned with the nearest parking space horizontal guide rod (16).

17. An electric vehicle three-dimensional charging station as described in claim 10, characterized in that: Each longitudinal beam (13) is equipped with an electric vehicle pallet limiting device.

18. An electric vehicle three-dimensional charging station as described in claim 17, characterized in that: The electric vehicle pallet limiting device includes a rotating longitudinal rod (7); Each rotating longitudinal bar (7) is connected to the frame through several mounting bearings (72) and is located on the transverse side of a longitudinal side beam (13) close to the centroid of the frame (1); The two ends of the rotating longitudinal rod (7) are respectively provided with stop arms (71) perpendicular to its central axis; each rotating longitudinal rod (7) is provided with several active rotating arms (73), and the top surface of each stop arm (71) and active rotating arm (73) is above the top surface of the longitudinal side beam (13); the rotating longitudinal rod (7) is provided with a spring return assembly. When the lifting mechanism controls the lifting platform pallet frame moving guide rail on the lifting platform (3) and the charging position horizontal pallet frame moving guide rail of the frame (1) near the charging position (12) on the side of the lifting platform (3), each stop arm (71) is aligned between the front side and the rear side of the pilot frame (31).

19. An electric vehicle three-dimensional charging station as described in claim 18, characterized in that: The mounting bearing (72) is provided with a torsion spring (74) or at least a stop arm (71) connected to the longitudinal side beam (13) by a tension spring (75) or at least a drive arm (73) connected to the longitudinal side beam (13) by a tension spring (75).

20. An electric vehicle three-dimensional charging station as described in claim 1, characterized in that: The lifting mechanism includes lifting motors (5) located at the left and right ends of the top of the frame (1). Each lifting platform (3) is connected to the nearest lifting motor (5) via a lifting chain (51). The lifting motor (5) is connected to an external power source.

21. The electric vehicle three-dimensional charging station as described in claim 20, characterized in that: The top of the frame (1) is provided with a vertical lifting shaft (52) at the left and right ends. Each vertical lifting shaft (52) is connected to the nearest lifting motor (5). Each vertical lifting shaft (52) is provided with a lifting wheel (53) at the front and rear ends. The lifting wheel (53) at the front end of each lifting wheel (53) is connected to the front end of the nearest lifting platform (3) and the lifting wheel (53) at the rear end of each lifting wheel (53) is connected to the rear end of the nearest lifting platform (3) through a lifting chain (51).

22. The electric vehicle three-dimensional charging station as described in claim 21, characterized in that: Several fixed pulleys (54) are provided on the side of each lifting wheel (53) on the horizontal top of the frame (1) near the center of the frame (1). Two parallel counterweight guide rails (55) are provided below the fixed pulley (54) that is farthest from the lifting wheel (53) on the frame (1). Counterweights (56) run on the two counterweight guide rails (55). The lifting chain (51) is connected to each fixed pulley (54) and counterweight (56).

23. The electric vehicle three-dimensional charging station as described in claim 1, characterized in that: The front and rear ends of the left end of the frame (1) and the front and rear ends of the right end of the frame (1) are vertically provided with columns (18), each column (18) is provided with a vertical guide rail (19), and each lifting platform (3) is provided with a guide wheel (315) at the front and rear ends that can clamp the nearest vertical guide rail (19) to it from the left and right.

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