Charging and discharging connection device of battery energy storage ship

Abstract

The utility model discloses a kind of battery energy storage ship's charging and discharging connecting device, including electric cable winding and unwinding device, shore base charging and discharging connector and ship charging and discharging plugboard, cable winding and unwinding device is wound on cable, cable is connected shore base charging and discharging connector;Displacement sensor installed on shore base, for monitoring ship displacement signal;Electric cable winding and unwinding device releases or recovers cable according to ship displacement signal;Positioning detection device and electric locking mechanism between shore base charging and discharging connector and ship charging and discharging plugboard are installed, positioning detection device emits docking in place signal when shore base charging and discharging connector and ship charging and discharging plugboard are pasted, and electric locking mechanism is according to docking in place signal and locks shore base charging and discharging connector and ship charging and discharging plugboard.The utility model cooperates with displacement sensor and electric cable winding and unwinding device and cooperates with positioning detection device and electric locking mechanism, can avoid that connecting structure is overloaded or loosens, guarantee the stability and continuity of charging / discharge process.

Description

Technical Field

[0001] This utility model relates to the field of ship charging technology, and in particular to a charging and discharging connection device for a battery energy storage ship. Background Technology

[0002] With the development of ship electrification and port green energy construction, charging ships via shore power systems during mooring has become a mainstream trend.

[0003] When a ship is moored, it will inevitably experience lateral, longitudinal, and vertical swaying displacements due to factors such as wind, waves, currents, tides, and loading / unloading operations. Especially in extreme weather conditions such as strong winds, rapid currents, or large swells, these swaying displacements will cause continuous disturbances to the charging connection devices between the ship and the shore. If the connection devices cannot adapt to such dynamic displacements, it will directly affect the stability and safety of the charging process.

[0004] Chinese patent CN 114665336 A discloses a charging connection device for battery-powered ships. The device has a charging cable inserted into its base. The power supply end of the cable extends upwards, passes through the hollow cavity of a vertical support column, and then extends towards one end of a horizontal support arm. After being wound several times by an electric cable winch, it exits and continues towards the other end of the horizontal support arm, finally being led out by a pulley mechanism and connected to a charging gun. This device achieves centralized management and electric winding and unwinding of the charging cable through the electric cable winch, and directional adjustment through the rotating horizontal support arm. However, this patented solution still has the following problems when dealing with ship rolling: (1) Shaking will cause relative friction and contact pressure fluctuations of conductive parts at the charging interface. Long-term use will easily cause contact wear and oxidation, leading to increased contact resistance, local overheating, and even the risk of electric arc.

[0005] (2) When the ship sways too much, problems such as the plug and socket becoming loose or the connection mechanism becoming stuck may occur, leading to charging interruption.

[0006] Therefore, developing a technical solution that can adapt to the swaying of ships while moored and ensure that the charging process is not affected has become a key requirement in the field of ship shore power charging. Utility Model Content

[0007] The main purpose of this invention is to propose a charging and discharging connection device for a battery energy storage ship. This device can adjust the cable length in real time according to the ship's lateral, longitudinal and vertical swaying, avoiding overload or loosening of the connection structure. It also ensures the dynamic stability of the connection structure through an electric locking mechanism, solving the problem that the physical connection of the charging connection device is prone to loosening or jamming when the ship is moored and swaying.

[0008] The technical solution adopted in this utility model is: A charging and discharging connection device for a battery energy storage vessel includes an electric cable winding device, a shore-based charging and discharging connector, and a ship charging and discharging plug plate. The electric cable winding device has a cable wound around it, which connects to the shore-based charging and discharging connector, which is used to connect to the ship charging and discharging plug plate. The device also includes: Displacement sensors installed on the shore are used to monitor ship displacement signals; the electric cable release and release device releases or retrieves the cable according to the ship displacement signal. A positioning detection device and an electric locking mechanism are installed between the shore-based charging / discharging connector and the ship's charging / discharging plate. The positioning detection device sends a docking signal when the shore-based charging / discharging connector and the ship's charging / discharging plate are in contact. The electric locking mechanism locks the shore-based charging / discharging connector and the ship's charging / discharging plate according to the docking signal.

[0009] In the above scheme, the charging and discharging connection device also includes a controller. The controller is connected to the displacement sensor and the positioning detection device, and is also connected to the drive end of the electric cable reeling and releasing device and the drive end of the electric locking mechanism. The controller adjusts the steering and rotation speed of the electric cable reeling and releasing device according to the ship displacement signal so that the cable release / retraction length matches the ship displacement. After receiving the docking signal, the controller sends a locking signal to the electric locking mechanism.

[0010] In the above scheme, the displacement sensor is a laser displacement sensor.

[0011] In the above scheme, the positioning detection device uses a pressure sensor.

[0012] In the above scheme, the pressure sensor is a contact pressure sensor; the contact pressure sensor is installed on the ship's charging and discharging connector, and when the shore-based charging and discharging connector is properly connected to the ship's charging and discharging connector, the contact pressure sensor contacts the shore-based charging and discharging connector; or, the contact pressure sensor is installed on the shore-based charging and discharging connector, and when the shore-based charging and discharging connector is properly connected to the ship's charging and discharging connector, the contact pressure sensor contacts the ship's charging and discharging connector.

[0013] In the above scheme, the electric locking mechanism includes a locking tongue and a miniature cylinder installed on the shore-based charging and discharging connector, and a locking hole adapted to the locking tongue on the ship's charging and discharging plate; the locking tongue is installed at the output end of the miniature cylinder, and the miniature cylinder drives the locking tongue to extend into the locking hole to lock the shore-based charging and discharging connector and the ship's charging and discharging plate.

[0014] In the above scheme, multiple plugs of the charging and discharging connector along the shore base are arranged circumferentially, the miniature cylinders are arranged in a one-to-one correspondence with the lock tongue, and the lock holes are arranged in a one-to-one correspondence with the lock tongue.

[0015] In the above scheme, the charging and discharging connection device further includes an adaptive angle guiding device, which is installed at the outlet end of the electric cable winding and unwinding device; the adaptive angle guiding device includes a first support frame, a central shaft and a guide wheel, the first support frame has a certain length of groove along the initial direction perpendicular to the central shaft, the two ends of the central shaft pass through the groove and can slide in the groove, and the guide wheel is rotatably installed in the middle of the central shaft.

[0016] In the above scheme, the deflection angle of the central axis relative to the initial direction of the central axis generated by the sliding is -10° to +10°.

[0017] In the above scheme, the charging and discharging connection device also includes a cable cutter, which is installed on the shore base and located at the outlet end of the electric cable winding and unwinding device, and the cable passes through the cable cutter.

[0018] In the above scheme, the cable cutter includes a base, a second support frame, an upper blade, a lower blade, and a first lifting drive mechanism; the second support frame is fixedly installed on the base, and a first through hole for the cable to pass through is provided on the second support frame; the upper blade is fixedly installed on the second support frame and located above the first through hole; the lower blade is slidably installed on the second support frame and located below the first through hole; the first lifting drive mechanism is installed on the base, and its output end is connected to the lower blade to drive the lower blade to slide up and down.

[0019] In the above scheme, the cable cutter further includes clamping mechanisms symmetrically arranged on both sides of the second support frame. Each clamping mechanism includes a third support frame, an upper clamping block, a lower clamping block, and a second lifting drive mechanism. The third support frame is fixedly installed on the base, and a second through hole for the cable to pass through is provided on the third support frame. The upper clamping block is fixedly installed on the third support frame and located above the second through hole. The lower clamping block is slidably installed on the third support frame and located below the second through hole. The second lifting drive mechanism is installed on the base, and its output end is connected to the lower clamping block to drive the lower clamping block to slide up and down.

[0020] The beneficial effects of this utility model are: This utility model's charging and discharging connection device utilizes existing electric cable reeling and deployment devices, combined with a displacement sensor to monitor ship displacement signals in real time. Based on these displacement signals, the direction and speed of the servo motor in the electric cable reeling and deployment device can be dynamically adjusted to match the cable release / retraction length with the ship's displacement. This ensures the cable is in a relaxed, tension-free, and non-overlapping state, preventing insulation damage or core breakage due to tension. Compared to existing technologies, it can compensate for ship displacement relative to the shore base exceeding 10 meters, adapting to multi-directional and multi-amplitude ship swaying and preventing overload or loosening of the connection structure. Simultaneously, an electric locking mechanism and a positioning detection device are installed between the shore-based charging and discharging connector and the ship's charging and discharging plate. After the positioning detection device detects proper docking, the electric locking mechanism locks the shore-based charging and discharging connector and the ship's charging and discharging plate together, ensuring a stable connection during charging. In summary, this utility model, through adaptive connection combined with mechanical locking, completely solves the problem of charging interruption caused by ship swaying, ensuring a continuous and stable charging process, and is applicable to mooring scenarios under various sea conditions.

[0021] This invention reduces rigid collisions and friction of connecting parts, reduces equipment wear, extends the service life of the charging device, and has strong versatility.

[0022] This utility model is adaptable to various working conditions, has low environmental requirements, reduces manual operation and maintenance costs, avoids ship operation delays caused by charging interruptions, and improves the efficiency of shore power utilization in ports. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of the charging and discharging connection device of the battery energy storage ship in this utility model embodiment; Figure 2 yes Figure 1 A schematic diagram of the shore-based charging / discharging connector of the charging / discharging connection device shown. Figure 3 yes Figure 1 A schematic diagram of the structure of the ship's charging and discharging plug plate for the charging and discharging connection device shown. Figure 4 yes Figure 1 The main structural view of the adaptive angle guide device of the charging and discharging connection device shown; Figure 5 yes Figure 1 Top view of the adaptive angle guide device of the charging / discharging connection device shown; Figure 6 yes Figure 5 A schematic diagram of the central axis deflection of the adaptive angle guide device shown; Figure 7 yes Figure 1 The main structural view of the cable cutter of the charging and discharging connection device shown; Figure 8 yes Figure 1 A schematic diagram of the installation of the blade of the cable cutter in the charging and discharging connection device shown.

[0025] In the diagram: 10. Electric cable retraction device; 20. Shore-based charging / discharging connector; 21. Plug; 22. Locking tongue; 23. Miniature cylinder; 30. Shipboard charging / discharging plug; 31. Socket; 32. Lock hole; 40. Displacement sensor; 50. Positioning detection device; 60. Adaptive angle guiding device; 61. First support frame; 62. Central shaft; 63. Guide wheel; 64. Slide groove; 70. Cable cutter; 71. Base; 72. Second support frame; 73. Upper blade; 74. Lower blade; 75. First lifting drive mechanism; 76. Third support frame; 77. Upper clamping block; 78. Lower clamping block; 79. Second lifting drive mechanism; 200. Battery energy storage ship. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0027] It should be noted that the illustrations provided in the embodiments of this utility model are only schematic representations of the basic concept of this utility model. Therefore, the drawings only show the components related to this utility model and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0028] In this utility model, it should also be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" are used only for descriptive and distinguishing purposes and should not be construed as indicating or implying relative importance.

[0029] Furthermore, it should be noted that the features of the various embodiments of this utility model can be combined or integrated in part or in whole, and as those skilled in the art will understand, they can interact and operate in different ways. Each embodiment can be implemented independently of each other, or implemented in an associated relationship.

[0030] like Figure 1 As shown in the illustration, a charging and discharging connection device for a battery storage vessel according to an embodiment of this utility model includes an electric cable winding and unwinding device 10, a shore-based charging and discharging connector 20, and a ship charging and discharging plate 30. The electric cable winding and unwinding device 10 has a cable wound around it, and the shore-based charging and discharging connector 20 is installed at the end of the cable. The shore-based charging and discharging connector 20 is used to connect to the ship charging and discharging plate 30, which is installed on the battery storage vessel 200. The charging and discharging connection device also includes: Displacement sensor 40, installed on shore, is used to monitor ship displacement signals in real time; The positioning detection device 50 is set between the shore-based charging and discharging connector 20 and the ship charging and discharging plate 30, and is used to send a docking signal when the shore-based charging and discharging connector 20 and the ship charging and discharging plate 30 are in contact. An electric locking mechanism is installed between the shore-based charging / discharging connector 20 and the ship charging / discharging plug 30, and is used to lock the shore-based charging / discharging connector 20 and the ship charging / discharging plug 30 after receiving a locking signal.

[0031] Further optimization includes a controller for the charging and discharging connection device. The controller is connected to the displacement sensor 40 and the positioning detection device 50, and is also connected to the drive end of the electric cable reeling and unloading device 10 and the drive end of the electric locking mechanism. The controller is used to adjust the direction and speed of the electric cable reeling and unloading device 10 according to the ship's displacement signal so that the cable release / retraction length matches (i.e., is equal to) the ship's displacement, and issues a locking signal after receiving the docking completion signal.

[0032] In this invention, the displacement sensor 40 monitors the ship's displacement signal in real time and transmits it to the controller. The controller dynamically adjusts the direction and speed of the servo motor of the electric cable release / retraction device 10 according to the displacement signal, so that the cable release / retraction length matches the ship's displacement, ensuring that the cable is in a "relaxed, tension-free, and non-overlapping" state, avoiding insulation damage or core breakage caused by cable tension. For example, when the ship is far from the shore, the displacement increment is positive, so the servo motor is controlled to rotate forward to release the cable; conversely, when the ship is close to the shore, the displacement increment is negative, so the servo motor is controlled to rotate in reverse to retract the cable; at the same time, the rotation speed of the servo motor is matched with the ship's movement speed.

[0033] Furthermore, this utility model provides an electrically locking mechanism and a positioning detection device 50 that cooperate with each other between the shore-based charging / discharging connector 20 and the ship charging / discharging plate 30. When the shore-based charging / discharging connector 20 and the ship charging / discharging plate 30 are attached, the positioning detection device 50 sends a docking signal to the controller. After receiving the docking signal, the controller sends a locking signal to the electrically locking mechanism. The electrically locking mechanism locks the shore-based charging / discharging connector 20 and the ship charging / discharging plate 30 together, ensuring a stable connection between the shore-based charging / discharging connector 20 and the ship charging / discharging plate 30 during the charging process, thereby ensuring the stability and continuity of the charging process.

[0034] Further optimization allows the electric cable winding and unwinding device 10 to utilize an electric cable reel, capable of accommodating charging and unloading cables longer than 10m. The cable is made of a flexible, wear-resistant material, possessing tensile and bending resistance, suitable for complex shore-based marine environments. A rotating shaft is coaxially positioned at the center of the reel, with both ends connected to the reel support via deep groove ball bearings. This allows for free, unhindered rotation of the rotating shaft, providing stable support for cable winding and unwinding. The drive mechanism employs an integrated design of a servo motor and a reduction gear set. The output of the servo motor is connected to the reduction gear set, which in turn is connected via a key to the reel's rotating shaft, enabling precise control of the reel's rotation speed for driving the reel's rotation and winding / unwinding the cable. In other embodiments, the electric cable winding and unwinding device 10 may employ a structure such as an electric cable drum.

[0035] Further optimization involves using a laser displacement sensor for the displacement sensor 40. In this embodiment, the laser displacement sensor 40 is installed at the front end of the bracket of the electric cable winding and unwinding device 10. By measuring the time it takes for the laser to reflect between the emission point and the ship's charging and discharging plate 30, the real-time distance between the detection point and the ship's charging and discharging plate 30 is determined, thereby enabling real-time monitoring of the ship's displacement.

[0036] Further optimization involves the positioning detection device 50 employing a pressure sensor. In this embodiment, the pressure sensor is a contact-type pressure sensor, installed on the ship's charging / discharging connector 30. When the shore-based charging / discharging connector 20 is properly aligned with the ship's charging / discharging connector 30, the contact-type pressure sensor contacts the shore-based charging / discharging connector 20; or, it is installed on the shore-based charging / discharging connector 20, and when the shore-based charging / discharging connector 20 is properly aligned with the ship's charging / discharging connector 30, the contact-type pressure sensor contacts the ship's charging / discharging connector 30.

[0037] In other embodiments of this utility model, the positioning detection device 50 may also use other detection devices, such as a displacement sensor, which can determine whether the docking is in place by detecting the distance between the shore-based charging and discharging connector 20 and the ship charging and discharging plug plate 30.

[0038] like Figure 2-3 As shown, the electric locking mechanism includes a locking tongue 22 and a miniature cylinder 23 installed on the shore-based charging / discharging connector 20, and a locking hole 32 adapted to the locking tongue 22 on the ship's charging / discharging plate 30; the locking tongue 22 is installed at the output end of the miniature cylinder 23, and the miniature cylinder 23 drives the locking tongue 22 to extend into the locking hole 32 to lock the shore-based charging / discharging connector 20 and the ship's charging / discharging plate 30.

[0039] To further optimize the connection and improve stability, multiple locking tongues 22 are arranged circumferentially around the plug 21 of the shore-based charging / discharging connector 20. Miniature cylinders 23 are arranged in a one-to-one correspondence with each locking tongue 22, and locking holes 32 are also arranged in a one-to-one correspondence with each locking tongue 22. In this embodiment, four locking tongues 22 are evenly arranged circumferentially around the plug 21. Correspondingly, four locking holes 32 are evenly arranged circumferentially around the insertion holes 31 of the ship's charging / discharging plate 30. Each locking tongue 22 is independently equipped with a high-precision miniature cylinder 23, which can drive the locking tongue 22 to extend into the corresponding locking hole 32, achieving mechanical locking. When the shore-based charging / discharging connector 20 and the ship's charging / discharging plate 30 are aligned, the positioning detection device 50 immediately sends a docking signal to the controller, triggering the miniature cylinders 23 to drive all locking tongues 22 to extend synchronously, achieving multi-point synchronous locking. When charging / discharging ends, the controller receives a charging / discharging completion signal, controls the miniature cylinders 23 to reset, and the locking tongues 22 retract to unlock. The unlocking process simultaneously cuts off the charging / discharging circuit.

[0040] Further optimization includes an adaptive angle guide device 60, which is installed at the outlet end of the electric cable take-up and take-up device 10. Figure 4-6As shown, the adaptive angle guiding device 60 includes a first support frame 61, a central shaft 62, and a guide wheel 63. The first support frame 61 is fixedly installed on the bracket of the electric cable winding and unwinding device 10. A certain length of sliding groove 64 is opened on the first support frame 61. The front and rear ends of the central shaft 62 pass through the sliding groove 64 and can slide left and right within the sliding groove 64. The guide wheel 63 is rotatably installed in the middle of the central shaft 62. In the initial state, the central shaft 62 and the sliding groove 64 are perpendicular to each other. When the ship moves forward or backward, causing an angular deviation between the cable and the outlet end, the central shaft 62 is subjected to external force and deflects through the misalignment of the front and rear ends. This causes the guide wheel 63 to deflect accordingly, thereby automatically adjusting the cable outlet direction and keeping the angle between the cable and the docking end of the ship's charging and discharging plug 30 within a reasonable range. This effectively limits cable deviation and prevents cable entanglement and local stress concentration caused by angular misalignment.

[0041] Further optimization involves setting the length of the slide groove 64 so that the deflection angle of the central axis 62 relative to the initial direction generated by sliding is -10° to +10°.

[0042] Further optimization includes a cable cutter 70 in the charging and discharging connection device. The cable cutter 70 is installed on the shore base and located at the outlet end of the electric cable reeling device 10, through which the cable passes. In the event of extreme unforeseen circumstances, the displacement sensor 40 detects that the ship's displacement exceeds the allowable range, and the controller issues an emergency disconnect signal. This first triggers the emergency power-off switch to cut off the charging and discharging circuit, and then activates the cable cutter 70 to complete the cable cut. Simultaneously, an audible and visual alarm signal is triggered to alert maintenance personnel for handling.

[0043] like Figure 7-8 As shown, the cable cutter 70 includes a base 71, a second support frame 72, an upper blade 73, a lower blade 74, and a first lifting drive mechanism 75. The second support frame 72 is fixedly installed on the base 71, and a first through hole for the cable to pass through is provided on the second support frame 72. The upper blade 73 is fixedly installed on the second support frame 72 and located above the first through hole. The lower blade 74 is slidably installed on the second support frame 72 and located below the first through hole. The first lifting drive mechanism 75 is installed on the base 71, and its output end is connected to the lower blade 74 to drive the lower blade 74 to slide up and down.

[0044] Further optimization includes a clamping mechanism symmetrically arranged on both sides of the second support frame 72 to rigidly clamp the cable before cutting, preventing the cable from slipping or springing back during the cutting process. Each clamping mechanism includes a third support frame 76, an upper clamping block 77, a lower clamping block 78, and a second lifting drive mechanism 79. The third support frame 76 is fixedly mounted on the base 71, and a second through hole for the cable to pass through is provided on the third support frame 76. The upper clamping block 77 is fixedly mounted on the third support frame 76 and located above the second through hole. The lower clamping block 78 is slidably mounted on the third support frame 76 and located below the second through hole. The second lifting drive mechanism 79 is mounted on the base 71, and its output end is connected to the lower clamping block 78 to drive the lower clamping block 78 to slide up and down.

[0045] In a further optimization, both the first lifting drive mechanism 75 and the second lifting drive mechanism 79 are connected to the controller signal. When the controller sends an emergency disconnect signal, the second lifting drive mechanism 79 pushes the lower clamping block 78 of the clamping structure upward to secure the cable; then the first lifting drive mechanism 75 pushes the lower blade 74 upward to work together with the upper blade 73 to cut the cable.

[0046] Further optimization involves the adoption of hydraulic telescopic rods for both the first lifting drive mechanism 75 and the second lifting drive mechanism 79.

[0047] Further optimization involved placing the controller in a central control cabinet on the shore base.

[0048] It should be noted that, depending on the implementation needs, the various steps / components described in this application can be broken down into more steps / components, or two or more steps / components or parts of the operation of steps / components can be combined into new steps / components to achieve the purpose of this utility model.

[0049] The order of the steps in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0050] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A charging and discharging connection device for a battery energy storage vessel, comprising an electric cable winding device, a shore-based charging and discharging connector, and a ship charging and discharging plug plate, wherein a cable is wound on the electric cable winding device, the cable being connected to the shore-based charging and discharging connector, and the shore-based charging and discharging connector being used to connect to the ship charging and discharging plug plate; characterized in that, Also includes: A displacement sensor is installed on the shore; the displacement sensor is used to monitor the ship's displacement signal; the electric cable release and release device releases or retrieves the cable according to the ship's displacement signal; A positioning detection device and an electric locking mechanism are installed between the shore-based charging / discharging connector and the ship's charging / discharging plate. The positioning detection device sends a docking signal when the shore-based charging / discharging connector and the ship's charging / discharging plate are in contact. The electric locking mechanism locks the shore-based charging / discharging connector and the ship's charging / discharging plate according to the docking signal.

2. The charging and discharging connection device for a battery energy storage ship according to claim 1, characterized in that, The charging and discharging connection device also includes a controller, which is signal-connected to the displacement sensor and the positioning detection device, and signal-connected to the drive end of the electric cable reeling and releasing device and the drive end of the electric locking mechanism. The controller adjusts the steering and rotation speed of the electric cable reeling and releasing device according to the ship displacement signal so that the cable release / retraction length matches the ship displacement, and sends a locking signal to the electric locking mechanism after receiving the docking signal.

3. The charging and discharging connection device for a battery energy storage ship according to claim 1, characterized in that, The displacement sensor is a laser displacement sensor.

4. The charging and discharging connection device for a battery energy storage ship according to claim 1, characterized in that, The positioning detection device uses a pressure sensor.

5. The charging and discharging connection device for a battery energy storage ship according to claim 4, characterized in that, The pressure sensor is a contact type pressure sensor; the contact type pressure sensor is installed on the ship's charging and discharging connector, and when the shore-based charging and discharging connector is properly connected to the ship's charging and discharging connector, the contact type pressure sensor is in contact with the shore-based charging and discharging connector; or, the contact type pressure sensor is installed on the shore-based charging and discharging connector, and when the shore-based charging and discharging connector is properly connected to the ship's charging and discharging connector, the contact type pressure sensor is in contact with the ship's charging and discharging connector.

6. The charging and discharging connection device for a battery energy storage ship according to claim 1, characterized in that, The electric locking mechanism includes a locking tongue and a miniature cylinder installed on the shore-based charging and discharging connector, and a locking hole adapted to the locking tongue on the ship's charging and discharging plate; the locking tongue is installed at the output end of the miniature cylinder, and the miniature cylinder drives the locking tongue to extend into the locking hole to lock the shore-based charging and discharging connector and the ship's charging and discharging plate.

7. The charging and discharging connection device for a battery energy storage ship according to claim 6, characterized in that, The plugs of the charging and discharging connectors along the shore are arranged in a circumferential manner, the miniature cylinders are arranged in a one-to-one correspondence with the lock tongues, and the lock holes are arranged in a one-to-one correspondence with the lock tongues.

8. The charging and discharging connection device for a battery energy storage ship according to claim 1, characterized in that, The charging and discharging connection device further includes an adaptive angle guide device, which is installed at the outlet end of the electric cable winding and unwinding device. The adaptive angle guide device includes a first support frame, a central shaft, and a guide wheel. A certain length of groove is opened on the first support frame along the initial direction perpendicular to the central shaft. The two ends of the central shaft pass through the groove and can slide within the groove. The guide wheel is rotatably installed in the middle of the central shaft.

9. The charging and discharging connection device for a battery energy storage ship according to claim 8, characterized in that, The deflection angle of the central axis relative to its initial direction, generated by the sliding, is -10° to +10°.

10. The charging and discharging connection device for a battery energy storage ship according to claim 1, characterized in that, The charging and discharging connection device also includes a cable cutter, which is installed on the shore base and located at the outlet end of the electric cable winding and unwinding device, through which the cable passes.

11. The charging and discharging connection device for a battery storage vessel according to claim 10, characterized in that, The cable cutter includes a base, a second support frame, an upper blade, a lower blade, and a first lifting drive mechanism; the second support frame is fixedly installed on the base, and a first through hole for the cable to pass through is provided on the second support frame; the upper blade is fixedly installed on the second support frame and located above the first through hole; the lower blade is slidably installed on the second support frame and located below the first through hole; the first lifting drive mechanism is installed on the base, and its output end is connected to the lower blade to drive the lower blade to slide up and down.

12. The charging and discharging connection device for a battery energy storage ship according to claim 11, characterized in that, The cable cutter also includes clamping mechanisms symmetrically arranged on both sides of the second support frame. Each clamping mechanism includes a third support frame, an upper clamping block, a lower clamping block, and a second lifting drive mechanism. The third support frame is fixedly installed on the base and has a second through hole for the cable to pass through. The upper clamping block is fixedly installed on the third support frame and located above the second through hole. The lower clamping block is slidably installed on the third support frame and located below the second through hole. The second lifting drive mechanism is installed on the base, and its output end is connected to the lower clamping block to drive the lower clamping block to slide up and down.

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