Offshore charging platform cable receiving and connecting device

Abstract

The invention relates to the field of ship and ocean engineering, and discloses an offshore charging platform cable receiving and connecting device which comprises an offshore charging platform charging plug which descends from an offshore charging platform through remote control and is inserted into a horn mouth on a ship receiver through self gravity and an offshore charging platform charging socket. The horn mouth can be adjusted to a vertical position before connection and is ready to receive a charging plug of an offshore charging platform; the ship receiver is installed on a ship, located in front of the center line of the ship and flush with a deck. The marine charging platform charging socket is installed on the ship receiver, the marine charging platform charging socket is provided with a socket automatic lock catch structure and a hydraulic transmission device, and the socket automatic lock catch structure is close to the gradually-shrinking end of the horn mouth and arranged on the upper portion of the hydraulic transmission device. And the two are matched to automatically lock the charging plug of the offshore charging platform inserted into the horn mouth. According to the invention, sea condition adaptability can be improved, flexible and accurate docking is realized, and manual operation difficulty is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of marine and ocean engineering, and particularly relates to a cable receiving and connecting device for offshore charging platform. BACKGROUND

[0002] With the increasing frequency of offshore new energy development and ocean-going operations, higher requirements are put forward for the stability and reliability of offshore power supply. However, due to the influence of global climate change, the marine environment is complex, harsh and full of uncertainties. The existing cable receiving and connecting devices face many challenges in harsh sea conditions: some devices have weak wind and wave resistance, and are prone to connection interruption or poor contact; some devices lack flexibility and are difficult to adapt to precise docking requirements in dynamic sea conditions; and some devices are complex to operate and cannot efficiently complete the winding and connection under harsh conditions. These defects seriously affect the stable transmission of power on offshore platforms and restrict the safety and continuity of offshore operations.

[0003] Therefore, it is urgent to develop a cable receiving and connecting device for offshore charging platform that has high sea condition adaptability, flexible and precise docking capability, and reliable and stable transmission performance, which is a key technical requirement to ensure offshore power supply and promote the smooth development of marine development activities. SUMMARY

[0004] In view of the above problems, the purpose of the present application is to provide a cable receiving and connecting device for offshore charging platform, which can improve the sea condition adaptability, flexible and precise docking, and reduce the difficulty of manual operation.

[0005] To achieve the above object, the application adopts the following technical scheme: a marine charging platform cable receiving and connecting device, comprising: a marine charging platform charging plug and a marine charging platform charging socket with a horn mouth; the marine charging platform charging plug is lowered from the marine charging platform by remote control, and is inserted into the horn mouth on the ship receiver and the marine charging platform charging socket by using its own gravity; the horn mouth can be adjusted to a vertical position before connection, ready to receive the marine charging platform charging plug; the ship receiver is installed on the ship, located in front of the centerline of the ship and flush with the deck; the marine charging platform charging socket is installed on the ship receiver, and the marine charging platform charging socket is provided with a socket automatic locking structure and a hydraulic transmission device, the socket automatic locking structure is close to the tapered end of the horn mouth, and the socket automatic locking structure is arranged on the upper part of the hydraulic transmission device, and the two cooperate to automatically lock the marine charging platform charging plug inserted into the horn mouth; wherein the marine charging platform charging plug comprises a sealing device, an air extraction sealing device, a locking slot, a magnetic attraction module and a plug; the air extraction sealing device is provided with a charging plug circuit board, the top of the air extraction sealing device is provided with a three-phase plug connected with the plug circuit board, the bottom of the air extraction sealing device is provided with a sealing device, and the charging cable passes through the sealing device and is connected with the plug circuit board; the top end face of the air extraction sealing device is provided with a magnetic attraction module, and more than three locking slots are arranged in the middle circumferential direction.

[0006] Further, the sealing device is made of an anti-aging and chemical corrosion resistant material.

[0007] Further, the air extraction sealing device has a waterproof level of IP68 or above and a high-efficiency air extraction system.

[0008] Further, the locking slot adopts a magnetic guide structure, allowing the marine charging platform charging plug to automatically align the socket with an angle deviation of ±5°.

[0009] Further, a floating locking structure is adopted between the locking slot and the socket.

[0010] Further, the magnetic attraction module corresponds to the magnetic attraction module at the top of the marine charging platform charging socket, adopts a dynamic force and static force separation design, and allows the dynamic force to be adjusted to compensate for displacement; the magnetic attraction module is provided with a current detection circuit.

[0011] Further, the plug is provided with an encryption chip for bidirectional identity verification with the marine charging platform.

[0012] Further, the horn mouth adopts a double-cone design, cooperates with the locking slot of the magnetic guide structure, and allows the marine charging platform charging plug to automatically align the socket with an angle deviation.

[0013] Further, the socket automatic locking structure of the marine charging platform charging socket cooperates with the locking slot of the marine charging platform charging plug.

[0014] The automatic locking structure of the socket is a latch, and the number of the latch corresponds to the locking slot;

[0015] The automatic locking structure of the socket is internally provided with an infrared sensing device, a pressure sensor and a displacement sensor.

[0016] Further, the hydraulic transmission device is used to provide a pushing force for the locking slot, so as to automatically connect the automatic locking structure of the socket with the locking slot; and when charging is completed or in an emergency, the plug is driven to move outward to realize automatic disconnection.

[0017] The present application has the following advantages due to the above technical scheme:

[0018] 1. The present application has high sea condition adaptability: through the dynamic force and static force separation design of the floating type locking structure and the magnetic attraction module, the displacement of platform heave, ship roll / roll, etc. can be compensated, hard jamming or stress concentration can be avoided, and the dynamic docking requirement in complex sea conditions can be met.

[0019] 2. The present application can realize flexible and accurate docking: the horn mouth adopts a double-cone surface and a magnetic guide structure, allowing the plug to be automatically aligned and inserted with an angle deviation of ±5°, reducing the difficulty of manual operation, and realizing rapid docking without precise positioning.

[0020] 3. The present application can reliably and stably transmit, and adopts a double sealing design (upper sealing device + air extraction sealing device, waterproof level IP68) to effectively prevent seawater and mist from entering and avoid circuit short circuit.

[0021] 4. The present application adopts the cooperation of the magnetic attraction module and the hydraulic transmission device to ensure that the connection interface has no gap, and in combination with the automatic locking function of the locking, the stability of power transmission is ensured.

[0022] 5. The present application can built-in current detection circuit and overload protection mechanism, automatically disconnect the power supply in abnormal condition, and improve the system safety.

[0023] 6. The present application has high efficiency and convenient operation: supports remote control "one-key locking and releasing", the hydraulic transmission device realizes automatic connection and disconnection, adapts to the rapid plugging requirement in emergency, and improves the efficiency of offshore operation.

[0024] 7. The present application has safety protection and compatibility: the plug is provided with an encryption chip to realize two-way identity authentication and prevent unauthorized equipment from accessing.

[0025] 8. The ship receiver of the present application is installed at a deck flush position, which does not affect personnel passing, and takes into account the practicability and safety. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1It is the overall structure schematic diagram of the cable receiving and connecting device of the offshore charging platform in the embodiment of the application;

[0027] Figure 2 It is the overall structure schematic diagram of the charging socket of the offshore charging platform in the embodiment of the application;

[0028] Figure 3 It is the overall structure schematic diagram of the cable charging plug of the offshore charging platform in the embodiment of the application;

[0029] Figure 4 It is the split schematic diagram of the overall structure of the cable charging socket of the offshore charging platform in the embodiment of the application;

[0030] Figure 5 It is the overall structure schematic diagram of the cable charging socket of the offshore charging platform in the embodiment of the application. DETAILED DESCRIPTION

[0031] In view of the problems of the existing device, such as weak wind and wave resistance, insufficient flexibility, and complex operation in severe sea conditions, the application provides a cable receiving and connecting device of an offshore charging platform, which is composed of an offshore charging platform charging plug, a horn mouth, a socket automatic locking structure, and a hydraulic transmission device. The charging plug is lowered by remote control and inserted into the horn mouth by gravity, and the upper sealing device and the air extraction sealing device (waterproof level IP68) prevent seawater from entering. The locking slot structure cooperates with the magnetic guide and the floating design to allow the automatic alignment and adaptation to the ship swing within a ±5° angle deviation, the magnetic attraction module compensates the displacement by dynamic force, and is automatically disconnected in an abnormal state. The horn mouth adopts a double-cone surface and a magnetic guide structure to reduce the docking difficulty. The socket automatic locking structure monitors the locking state by infrared induction, pressure, and displacement sensors. The hydraulic transmission device pushes the plug to complete the locking after magnetic attraction docking, and drives the plug to automatically disconnect in the case of charging completion or emergency. The application has high sea condition adaptability, precise docking capability, and reliable transmission performance, supports remote control, realizes one-key locking and release, and guarantees the stable supply of offshore power and the safety of operation.

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the application clearer, the technical solutions of the embodiments of the application will be described clearly and completely below with reference to the drawings of the embodiments of the application. Obviously, the described embodiments are part of the embodiments of the application, rather than all the embodiments. Based on the described embodiments of the application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the application.

[0033] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0034] In one embodiment of the present application, a marine charging platform cable receiving and connecting device is provided, which realizes automatic connection by self-weight and has emergency plugging capability, and is suitable for safe and stable charging and emergency and rapid operation in complex sea conditions. In this embodiment, as shown in Figures 1 to 5 , the device comprises a marine charging platform charging plug 1 and a marine charging platform charging socket 2 with a horn mouth 2-1.

[0035] The marine charging platform charging plug 1 is lowered from the marine charging platform by remote control and is inserted into the horn mouth 2-1 on the ship receiver and the marine charging platform charging socket 2 by using its own gravity. The horn mouth 2-1 can be adjusted to a vertical position before connection, ready to receive the marine charging platform charging plug 1 as a connector. The ship receiver is installed on the ship, located in front of the centerline of the ship and flush with the deck, facilitating personnel to pass on the deck.

[0036] The marine charging platform charging socket 2 is installed on the ship receiver, and the socket automatic locking structure 2-2 and the hydraulic transmission device 2-3 are provided on the marine charging platform charging socket 2. The socket automatic locking structure 2-2 is close to the tapered end of the horn mouth 2-1, and the socket automatic locking structure 2-2 is arranged on the upper part of the hydraulic transmission device 2-3, and the two cooperate to automatically lock the marine charging platform charging plug 1 inserted into the horn mouth 2-1.

[0037] In the above embodiment, as shown in Figure 3 , the marine charging platform charging plug 1 comprises a sealing device 1-1, an air extraction sealing device 1-2, a locking slot 1-3, a magnetic attraction module 1-4 and a plug 1-5. The air extraction sealing device 1-2 is provided with a charging plug circuit board, the top of the air extraction sealing device 1-2 is provided with a three-phase plug 1-5 connected with the plug circuit board, the bottom of the air extraction sealing device 1-2 is provided with a sealing device 1-1, and the charging cable is connected with the plug circuit board through the sealing device 1-1, and the charging cable and the sealing device 1-1 are in sealed connection. The top end face of the air extraction sealing device 1-2 is provided with a magnetic attraction module 1-4, and more than three locking slots 1-3 are arranged in the circumferential direction, and four locking slots 1-3 are arranged in this embodiment.

[0038] In this embodiment, the sealing device 1-1 is made of an anti-aging and chemical corrosion resistant material to prevent seawater, mist and other substances from entering and to avoid material cracking and hardening. At the same time, it has excellent corrosion resistance and can resist high salinity, high humidity, strong ultraviolet rays and other marine environmental erosion.

[0039] In this embodiment, the waterproof level of the air extraction sealing device 1-2 reaches IP68 or above, ensuring that seawater does not penetrate into the device when it is immersed in deep water for a long time, avoiding short circuit or damage of the plug circuit board. It also has a high-efficiency air extraction system, which includes an air extraction fan arranged in the air extraction sealing device 1-2. When the sealing device 1-1 is connected and sealed with the socket, the air extraction fan is remotely controlled to quickly exhaust the air in the sealed cavity formed between the plug 1 and the socket 2, forming a stable negative pressure environment, ensuring that there is no gap between the connection interface of the plug 1 and the socket, and preventing seawater from penetrating.

[0040] In this embodiment, the lock slot 1-3 adopts a magnetic guide structure, allowing the offshore charging platform charging plug 1 to automatically align and insert into the socket with an angle deviation of ±5°, reducing the difficulty of manual operation, supporting remote control driving, and realizing one-key locking and releasing of the lock, which meets the demand for quick disconnection in emergency situations.

[0041] Optionally, to cope with the rolling and pitching movements of the platform and the ship caused by external forces such as wind and waves, a floating lock structure is adopted between the lock slot 1-3 and the socket, allowing a small displacement of the connection interface to avoid hard jamming and stress concentration.

[0042] In this embodiment, the magnetic attraction module 1-4 corresponds to the magnetic attraction module arranged at the top of the hydraulic transmission device 2-3 in the offshore charging platform charging socket 2, adopts a dynamic force and static force separation design, allows the dynamic force to be adjusted by current to compensate for the displacement of the platform heave, ship rolling and pitching, and has a current detection circuit built-in the magnetic attraction module 1-4. When the charging is completed or abnormally overloaded, the automatic disconnection is realized by reversing the magnetic pole of the electromagnet.

[0043] In this embodiment, the plug 1-5 has an encryption chip built-in to perform two-way identity verification with the offshore charging platform to prevent unauthorized devices from accessing. In terms of security, the plug current and voltage conditions are monitored in real time and displayed on the remote control platform in real time, and the power is automatically cut off in case of abnormality.

[0044] In the above embodiment, the horn mouth 2-1 of the offshore charging platform charging socket 2 adopts a double-cone design, which cooperates with the lock slot 1-3 of the magnetic guide structure, allowing the offshore charging platform charging plug 1 to automatically align and insert with a certain angle deviation, reducing the difficulty of operation.

[0045] In the above embodiment, the socket automatic locking structure 2-2 of the offshore charging platform charging socket 2 cooperates with the locking slot 1-3 of the offshore charging platform charging plug 1.

[0046] In the embodiment, the socket automatic locking structure 2-2 is a latch, and the number of the latch corresponds to the locking slot 1-3. When the offshore charging platform charging plug 1 is inserted into the offshore charging platform charging socket 2, the latch is inserted into the locking slot 1-3 through the remote control system to realize the automatic locking function.

[0047] In the embodiment, the socket automatic locking structure 2-2 is internally equipped with an infrared sensing device, a pressure sensor, and a displacement sensor. The infrared sensing device is aligned with the locking slot 1-3, the pressure sensor and the displacement sensor monitor the locking state in real time, and an alarm is sent to the staff when an abnormality occurs.

[0048] In the above embodiment, the hydraulic transmission device 2-3 is used to provide a pushing force for the locking slot 1-3 to automatically connect the socket automatic locking structure 2-2 and the locking slot 1-3.

[0049] Specifically, when the offshore charging platform charging plug 1 is connected to the magnetic module on the top of the offshore charging platform charging socket 2 through the magnetic module 1-4, the hydraulic transmission device 2-3 provides a pushing force to move the locking slot 1-3 into the socket automatic locking structure 2-2, and the infrared sensing device in the socket automatic locking structure 2-2 aligns the locking slot 1-3 with the socket automatic locking structure 2-2, realizing the automatic connection of the offshore charging platform cable receiving and connecting device. When the ship charging is completed or an emergency occurs, the automatic locking structure composed of the socket automatic locking structure 2-2 and the locking slot 1-3 is automatically released, the offshore charging platform charging plug 1 and the socket magnetic module are automatically disconnected, and the hydraulic transmission device 2-3 moves the plug 1 outward to realize the automatic disconnection of the charging device.

[0050] In summary, when the present application is used, the specific operation steps are as follows:

[0051] Preparation stage ship receiver installation: The ship receiver containing the horn mouth 2-2 and the socket automatic locking structure 2-2 is installed in front of the ship centerline and flush with the deck to ensure that personnel traffic is not affected.

[0052] Horn mouth adjustment: The horn mouth 2-1 is adjusted to the vertical position through the remote control system, and the double-cone design and magnetic guide structure are used to prepare to receive the offshore charging platform charging plug 1.

[0053] Connection stage, offshore charging platform charging plug 1 is lowered and automatically aligned: remotely control the offshore charging platform charging plug 1 to descend from the offshore charging platform, and move to the ship receiver by using the weight. The double cone of the horn mouth 2-1 and the magnetic guide structure guide the plug 1 to automatically align the insertion direction with an angle deviation of ±5°, without the need for accurate manual operation.

[0054] Magnetic attraction pre-positioning: the magnetic attraction module 1-4 at the bottom of the plug 1 contacts the magnetic attraction module at the top of the socket, through a dynamic force and static force separation design, adjusts the current to compensate for the displacement of the platform heave, ship roll, pitch and other displacements, and ensures the accurate butt joint of the magnetic attraction module.

[0055] Hydraulic drive and lock locking: the hydraulic transmission device 2-3 is started, and the lock slot 1-3 of the plug 1 is pushed into the infrared sensing range of the automatic lock structure 2-2 of the socket by the thrust. After the infrared sensing device detects that the slot and the socket buckle are aligned, the plug is remotely controlled to be inserted into the slot to realize automatic locking; the pressure sensor and the displacement sensor monitor the locking state in real time, and issue a warning when an abnormality occurs.

[0056] Sealed cavity negative pressure formation: after locking, the air extraction sealing device 1-2 is started, and the air extraction fan is remotely controlled to quickly exhaust the air in the sealed cavity to form a stable negative pressure environment, which cooperates with the aging-resistant material (such as fluorine rubber) of the upper sealing device 1-1 to ensure that there is no seawater penetration at the connection interface of the plug and the socket.

[0057] Charging stage, identity verification and safety monitoring: the plug 1-5 built-in encryption chip and the offshore charging platform perform two-way identity verification, and after the verification is passed, the charging is started. At the same time, the plug monitors the current and voltage data in real time and transmits them to the remote control platform, and if overload, short circuit and other abnormalities are detected, the power supply is automatically cut off.

[0058] Disconnect stage, lock release and magnetic attraction disconnection: when the charging is completed or an emergency occurs, the plug pin of the socket automatic lock structure 2-2 is remotely controlled to retract, and the locking is released; at the same time, the current detection circuit of the magnetic attraction module 1-4 triggers the electromagnetic pole reversal, and the automatic disconnection of the plug and the socket magnetic attraction module is realized.

[0059] Hydraulic drive pulling out: the hydraulic transmission device 2-3 is reversely driven to move the plug outward and pull it out of the socket, completing the automatic disconnection of the charging device; then the plug is remotely controlled to rise and be withdrawn to the offshore charging platform.

[0060] In summary, the present application has the following beneficial effects:

[0061] 1) Dynamic sea state adaptability structure: The locking slot structure adopts a floating design, allowing the connection interface to produce a small displacement when the ship rolls and the platform heaves, avoiding hard locking; the magnetic attraction module adopts a dynamic force and static force separation mechanism, which adjusts the dynamic force in real time through the current to compensate for the displacement caused by the sea state, breaking through the limitation of traditional rigid connection which is easily interrupted in a dynamic environment.

[0062] While existing devices are mostly fixedly connected and cannot adapt to the dynamic changes of the marine environment, the present application realizes "active adaptation" rather than "passive resistance" to wave motion through elastic buffering and magnetic dynamic adjustment.

[0063] 2) Dual-cone horn mouth and magnetic guide combined docking: The horn mouth adopts a dual-cone surface combined with a magnetic guide structure (magnetic field strength ≥ 50 mT), allowing the plug to be automatically aligned and inserted with an angle deviation of ± 5°, without the need for manual precise positioning.

[0064] While traditional devices need to rely on manual or complex positioning systems to achieve precise docking, the present application converts "passive alignment" into "active guidance" through the coupling of geometric shapes and magnetic fields, reducing the difficulty of operation while improving docking efficiency.

[0065] 3) Dual sealing and negative pressure cavity cooperative protection: The upper sealing device uses an aging-resistant fluororubber material, and forms a negative pressure environment in cooperation with the air extraction sealing device, providing a double barrier to prevent seawater penetration. The air extraction system can exhaust the air in the sealed cavity within 30 seconds, ensuring that there is no gap in the connection interface.

[0066] While existing devices mostly use a single sealing structure, they are prone to aging and leakage in high-salt-mist and high-humidity environments; the present application improves the waterproof level to IP68 through the "material protection + air pressure protection" dual mechanism, meeting the long-term operation requirements in deep water.

[0067] 4) Intelligent power-off and overload protection of the magnetic attraction module: The magnetic attraction module has a current detection circuit built-in, which automatically disconnects when charging is complete or the current is overloaded, with a response time ≤ 0.1 seconds.

[0068] Traditional magnetic attraction devices need to be manually controlled to disconnect, and cannot respond to sudden overload or emergency situations; the present application realizes closed-loop control of "current monitoring - abnormality judgment - automatic disconnection", improving system safety.

[0069] 5) Hydraulic drive and remote control one-key process: The hydraulic transmission device and the remote control system are linked to realize the full automation of "plug lowering - magnetic attraction pre-positioning - hydraulic push locking - air extraction sealing", as well as the emergency disconnection of "locking release - magnetic attraction disconnection - hydraulic pullout", which can be completed within 10 seconds.

[0070] And the existing device depends on manual operation or step control, and is low in efficiency under severe sea conditions; the application realizes one-key locking and releasing by integrating hydraulic drive and remote instruction, and solves the problem of complex operation of traditional devices.

[0071] 6) Intelligent integration of encryption authentication and real-time monitoring: the plug-in encryption chip performs two-way identity authentication with the platform to prevent unauthorized access; at the same time, current and voltage data are monitored in real time, and power is automatically cut off and remote alarm is given when abnormality occurs.

[0072] The traditional charging device lacks data security protection and real-time monitoring function, and the application combines power transmission and intelligent monitoring to meet the safety and management needs of offshore operations.

[0073] 7) Deck flush installation of ship receiver: the socket assembly is installed in front of the ship centerline and flush with the deck to avoid protruding structures affecting personnel passage and facilitate equipment maintenance.

[0074] The existing device is exposed on the deck surface, is easily impacted by sea waves and affects the operation space, and the application improves practicability and safety through integrated layout.

[0075] Finally, it should be pointed out that: the above examples are only used to illustrate the technical solutions of the application, and not to limit them; although the application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the application.

Claims

1. A cable receiving and connecting device for an offshore charging platform, characterized in that, include: A charging plug (1) for an offshore charging platform, and a charging socket (2) for an offshore charging platform with a flared mouth (2-1); The charging plug (1) of the offshore charging platform is lowered from the offshore charging platform by remote control and inserted into the horn (2-1) on the ship receiver and the charging socket (2) of the offshore charging platform by its own weight; the horn (2-1) can be adjusted to a vertical position before connection, ready to receive the charging plug (1) of the offshore charging platform; the ship receiver is installed on the ship, located in front of the ship's centerline and flush with the deck. The offshore charging platform charging socket (2) is installed on the ship receiver. The offshore charging platform charging socket (2) is equipped with an automatic socket locking structure (2-2) and a hydraulic transmission device (2-3). The automatic socket locking structure (2-2) is close to the tapered end of the horn mouth (2-1). The automatic socket locking structure (2-2) is located on the upper part of the hydraulic transmission device (2-3). The two work together to automatically lock the offshore charging platform charging plug (1) inserted into the horn mouth (2-1). Among them, the charging plug (1) of the offshore charging platform includes a sealing device (1-1), an air extraction sealing device (1-2), a locking slot (1-3), a magnetic module (1-4), and a plug (1-5); A charging plug circuit board is installed inside the vacuum sealing device (1-2). A three-phase plug (1-5) connected to the plug circuit board is installed on the top of the vacuum sealing device (1-2). A sealing device (1-1) is installed at the bottom of the vacuum sealing device (1-2), and the charging cable passes through the sealing device (1-1) and is connected to the plug circuit board. A magnetic module (1-4) is provided at the top end face of the air extraction sealing device (1-2), and three or more locking slots (1-3) are provided at intervals in the middle circumferential direction.

2. The offshore charging platform cable receiving and connecting device as described in claim 1, characterized in that, The sealing device (1-1) is made of materials that are resistant to aging and chemical corrosion.

3. The offshore charging platform cable receiving and connecting device as described in claim 1, characterized in that, The air extraction sealing device (1-2) has a waterproof rating of IP68 or higher and has a high-efficiency air extraction system.

4. The offshore charging platform cable receiving and connecting device as described in claim 1, characterized in that, The locking slots (1-3) adopt a magnetic guidance structure, which allows the charging plug (1) of the offshore charging platform to be automatically aligned with the socket and inserted with an angular deviation of ±5°.

5. The offshore charging platform cable receiving and connecting device as described in claim 4, characterized in that, The locking slot (1-3) and the socket adopt a floating locking structure.

6. The offshore charging platform cable receiving and connecting device as described in claim 1, characterized in that, The magnetic module (1-4) corresponds to the magnetic module on the top of the charging socket (2) of the offshore charging platform. It adopts a dynamic force and static force separation design, which allows the dynamic force to be adjusted by current to compensate for displacement. The magnetic module (1-4) has a built-in current detection circuit.

7. The offshore charging platform cable receiving and connecting device as described in claim 1, characterized in that, The plugs (1-5) have built-in encryption chips for two-way authentication with the offshore charging platform.

8. The offshore charging platform cable receiving and connecting device as described in claim 1, characterized in that, The horn (2-1) adopts a double conical surface design, and with the locking slot (1-3) of the magnetic guidance structure, it allows the charging plug (1) of the offshore charging platform to automatically align and insert with angular deviation.

9. The offshore charging platform cable receiving and connecting device as described in claim 1, characterized in that, The automatic locking structure (2-2) of the charging socket (2) of the offshore charging platform cooperates with the locking slot (1-3) of the charging plug (1) of the offshore charging platform; The automatic locking structure (2-2) of the socket is a pin, and its number corresponds to the locking slots (1-3); The socket automatic locking structure (2-2) is equipped with an infrared sensor, a pressure sensor and a displacement sensor.

10. The offshore charging platform cable receiving and connecting device as described in claim 1, characterized in that, The hydraulic transmission device (2-3) is used to provide thrust to the locking slot (1-3) to automatically connect the socket automatic locking structure (2-2) to the locking slot (1-3); and to automatically disconnect the plug by moving it outward when charging is complete or in an emergency.

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