Trans-cabin connection device and electrical trans-cabin system

Abstract

This application provides a trans-tank connection device and an electrical trans-tank system, relating to the field of electrical connection and sealing technology for deep-sea equipment. The trans-tank connection device includes: a first housing, a second housing, a first sealing part, a second sealing part, and a filling part. The second housing has a first end and a second end; the first end is connected to the first housing, and the second end is configured to form an opening for a cable conductor to pass through; the first sealing part is disposed within the first housing; the second sealing part is disposed between the second housing and the cable conductor, used to seal the gap between the second housing and the cable conductor; the filling part fills the second housing, and the filling part is located on the side of the second sealing part closer to the first housing. Embodiments of this application provide a trans-tank connection device and an electrical trans-tank system. The trans-tank connection device can prevent high-pressure water from seeping into the tank from inside the trans-tank connection device, thereby achieving long-term sealing reliability in deep-sea environments.

Description

Technical Field

[0001] This application relates to the field of electrical connection and sealing technology for deep-sea equipment, and in particular to a trans-tank connection device and an electrical trans-tank system. Background Technology

[0002] Deep-sea equipment needs to operate for extended periods in extreme environments characterized by high pressure and high corrosion. Watertight electrical connections, serving as crucial interfaces for high-power power transmission between the interior and exterior of the vessel, must possess high current carrying capacity, high pressure resistance and sealing performance, and adaptability to wiring within compact spaces.

[0003] In related technologies, deep-sea watertight electrical penetration devices mainly include cylindrical penetration components and universal right-angle underwater connectors. The cylindrical penetration component employs a sealing structure combining a sealing ring and a stuffing box, suitable for low-current signal transmission in shallow to medium waters. The universal right-angle underwater connector achieves 90° wiring through a bent housing, suitable for low-current transmission scenarios in underwater sensors and communication equipment.

[0004] However, the existing deep-sea watertight electrical penetration connection device has insufficient sealing reliability, making it difficult to meet the comprehensive requirements of high current transmission and high-strength right-angle wiring in the high-pressure environment of the deep sea. Utility Model Content

[0005] In view of the above problems, this application provides a trans-tank connection device and an electrical trans-tank system, which can prevent high-pressure water from seeping into the tank from inside the trans-tank connection device, thereby achieving long-term sealing reliability in deep-sea environments.

[0006] To achieve the above objectives, the embodiments of this application provide the following technical solutions:

[0007] One aspect of this application provides a transcabin connection device, comprising:

[0008] First shell;

[0009] The second housing has a first end and a second end; the first end is connected to the first housing, and the second end is configured to form an opening for the conductor of the cable to pass through;

[0010] A first sealing part is disposed within a first housing. The first sealing part includes a conductive element and an insulating element. The conductive element is embedded within the insulating element and penetrates the insulating element along the axial direction of the first housing.

[0011] The second sealing part is disposed between the second housing and the conductor of the cable, and is used to seal the gap between the second housing and the conductor of the cable;

[0012] The filling portion is filled inside the second housing and is located on the side of the second sealing portion near the first housing; the filling portion covers the outer periphery of the conductor of the cable, and the conductor of the cable passes through the filling portion and is electrically connected to the conductive element.

[0013] In one possible implementation, the filling portion includes a potting compound that fills the internal cavity of the second housing and cures to secure the cable conductor within the second housing.

[0014] In one possible implementation, the first sealing part further includes a first sealing ring disposed between the outer wall of the insulating member and the inner wall of the first housing.

[0015] In one possible implementation, the first housing is further provided with a locking member that penetrates the first housing and abuts against the outer wall of the second housing.

[0016] In one possible implementation, the second sealing part includes a sealing element and a clamping element;

[0017] A sealing element is provided at the second end and sleeved on the outer periphery of the conductor of the cable; the sealing element is a deformable element.

[0018] The clamping element is movably connected to the second housing and is configured to apply pressure axially toward the seal along the port at the second end, causing the seal to expand radially and clamp between the cable conductor and the second housing.

[0019] In one possible implementation, the seal includes at least one V-shaped sealing ring having an open end and a closed end, the open end facing the port and the closed end facing away from the port.

[0020] In one possible implementation, the clamping element includes a pressure ring, a fastener, and a support member. The support member is disposed at the open end of the V-shaped seal ring to provide axial support for the V-shaped seal ring. The pressure ring abuts against the closed end of the V-shaped seal ring. The fastener is connected to the second housing and abuts against the pressure ring.

[0021] In one possible implementation, a vulcanized layer is further included, which is connected to the second end of the second housing and at least partially covers the outside of the second seal.

[0022] In one possible implementation, the second housing includes a first portion and a second portion, the first portion extending along a first direction and having a first end, and the second portion having a second end; the second portion is connected to the end of the first portion away from the first housing and extends along a second direction, the first direction being parallel to the axial direction of the first housing, and the first direction having an angle with the second direction.

[0023] Another aspect of this application provides an electrical cabin penetration system, comprising:

[0024] The cabin connection device as described above;

[0025] The hull has bulkheads with mounting holes.

[0026] The first housing of the through-cabin connection device is inserted into the mounting hole, and the first housing of the through-cabin connection device is sealed to the cabin wall.

[0027] The present application provides a trans-cabin connection device and an electrical trans-cabin system. The trans-cabin connection device includes a first housing, a second housing, a first sealing part, a second sealing part, and a filling part. The second housing has a first end and a second end, the first end being connected to the first housing, and the second end being configured to form an opening for the conductor of a cable to pass through.

[0028] A first sealing part is disposed within the first housing. The first sealing part includes a conductive element and an insulating element. The conductive element is embedded within the insulating element and penetrates the insulating element along the axial direction of the first housing. A second sealing part is disposed between the second housing and the conductor of the cable to seal the gap between the second housing and the conductor of the cable.

[0029] The filler portion is located within the second housing and is situated on the side of the second sealing portion closest to the first housing. The filler portion covers the outer periphery of the cable conductor, which passes through the filler portion and is electrically connected to the conductive element. The filler portion can constrain the axial movement and radial creep of the cable conductor under high water pressure, maintaining the interface stability between the cable conductor and the insulation element, and between the insulation element and the first housing, thus preventing insulation gap widening and electrical faults caused by relative displacement.

[0030] Furthermore, the insulating components of the filling portion and the first sealing portion of this application can form a continuous sealing structure inside the second housing and the first housing, respectively. This sealing structure can completely enclose the electrical connection point between the cable conductor and the conductive component inside it. When the external cable is damaged or broken, the sealing structure can block the leakage path of water along the outer wall of the cable conductor or the inner wall of the through-tank connection device towards the tank, preventing seawater from entering the equipment area inside the tank. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 A partial cross-sectional view of the inter-cabin connection device provided in an embodiment of this application;

[0033] Figure 2 A cross-sectional view of the conductive and insulating components provided in the embodiments of this application;

[0034] Figure 3This is a schematic diagram of the structure of the first connector provided in an embodiment of this application;

[0035] Figure 4 This is a schematic diagram of the structure of the second connector provided in an embodiment of this application;

[0036] Figure 5 for Figure 1 Enlarged view of section A.

[0037] Explanation of reference numerals in the attached figures:

[0038] 10 - Through-cabin connection device; 20 - Cable; 21 - Conductor; 22 - Outer sheath;

[0039] 100 - First housing; 100a - First mounting cavity; 200 - Second housing; 200a - Second mounting cavity; 300 - First sealing part; 400 - Second sealing part; 500 - Vulcanized layer; 600 - Inner threaded sleeve;

[0040] 110 - Compression ring; 120 - Locking element; 130 - Second connector; 210 - First part; 220 - Second part; 230 - First connector; 310 - Conductive element; 320 - Insulating element; 330 - First sealing ring; 410 - Sealing element; 420 - Compression element;

[0041] 211 - First end; 221 - Second end; 421 - Pressure ring; 422 - Fastener; 423 - Support component;

[0042] X - First direction; Y - Second direction. Detailed Implementation

[0043] As described in the background section, with the rapid development of deep-sea resource development, deep-sea scientific research and exploration, and seabed communication networks, the operating depth of deep-sea equipment is constantly increasing, and the demand for power transmission inside and outside the cabin is also increasing. Deep-sea equipment typically consists of a pressure-resistant hull forming the protective shell of the main body of the equipment. The control and power equipment is installed inside the hull, while the propulsion units, robotic arms, detection sensors, and lighting are arranged on the outside of the hull.

[0044] To enable the internal power supply to transmit high current to external loads, watertight electrical penetration devices need to be installed on the bulkheads of the hull. These devices are typically installed on the pressure bulkheads, with one side connecting to external cables and the other side connecting to internal electrical components. They must operate stably over long periods under conditions of high water pressure, corrosive seawater, and confined wiring space.

[0045] In related technologies, deep-sea watertight electrical penetration devices mainly include two types: conventional multi-core straight-cylinder penetration components and universal right-angle underwater connectors. Among them, multi-core straight-cylinder penetration components adopt a sealing structure combining O-rings and other sealing rings with stuffing boxes. However, under high water pressure, multi-core straight-cylinder penetration components are prone to conductor movement and creep extrusion at multi-material interfaces, which can easily lead to insulation abnormalities and electrical faults.

[0046] In addition, the contradiction between heat dissipation design and longitudinal sealing is prominent when the multi-core straight cylindrical through-hull component is transmitted with high current. The high contact resistance is prone to causing local overheating and excessive temperature rise. Moreover, the straight cylindrical structure of the multi-core straight cylindrical through-hull component is difficult to adapt to the wiring requirements of the small turning radius of the submersible.

[0047] Universal right-angle underwater connectors achieve 90° wiring through a bent housing, but their strength is insufficient, and the main body is prone to tearing when connecting large-diameter, heavy-duty cables. In addition, existing deep-sea watertight electrical penetration connection devices cannot prevent water from entering the hull along the internal channels of the penetration component when the external cable is damaged or broken, endangering the safety of manned equipment.

[0048] In view of this, embodiments of this application provide a cabin connection device and an electrical cabin connection system.

[0049] The through-cabin connection device of this application includes a first housing, a second housing, a first sealing part, a second sealing part, and a filling part. The second housing has a first end and a second end, the first end being connected to the first housing, and the second end being configured to form an opening for the conductor of a cable to pass through.

[0050] A first sealing part is disposed within the first housing. The first sealing part includes a conductive element and an insulating element. The conductive element is embedded within the insulating element and penetrates the insulating element along the axial direction of the first housing. A second sealing part is disposed between the second housing and the conductor of the cable to seal the gap between the second housing and the conductor of the cable.

[0051] The filler portion is located within the second housing and is situated on the side of the second sealing portion closest to the first housing. The filler portion covers the outer periphery of the cable conductor, which passes through the filler portion and is electrically connected to the conductive element. The filler portion can constrain the axial movement and radial creep of the cable conductor under high water pressure, maintaining the interface stability between the cable conductor and the insulation element, and between the insulation element and the first housing, thus preventing insulation gap widening and electrical faults caused by relative displacement.

[0052] Furthermore, the insulating components of the filling portion and the first sealing portion of this application can form a continuous sealing structure inside the second housing and the first housing, respectively. This sealing structure can completely enclose the electrical connection point between the cable conductor and the conductive component inside it. When the external cable is damaged or broken, the sealing structure can block the leakage path of water along the outer wall of the cable conductor or the inner wall of the through-tank connection device towards the tank, preventing seawater from entering the equipment area inside the tank.

[0053] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0054] Figure 1 This is a partial cross-sectional view of the trans-cabin connection device provided in an embodiment of this application. (Refer to...) Figure 1 This application provides an electrical penetration system, which can be used for power transmission and signal transmission between the interior and exterior of a pressure vessel in deep-sea equipment, enabling electrical interconnection across pressure bulkheads. Exemplarily, the electrical penetration system can be used in deep-sea scientific research and exploration equipment such as manned submersibles, unmanned remotely operated vehicles, autonomous underwater vehicles, and deep-sea landers, serving as a power and signal transmission channel between the pressure vessel and external actuators such as thrusters, robotic arms, high-definition camera systems, acoustic detection equipment, and sampling manipulators.

[0055] The electrical penetration system can also be used in deep-sea underwater infrastructure such as deep-sea observation stations, submarine base stations, submarine cable connection nodes, and deep-sea oil and gas extraction platforms. As a key node in the submarine energy network, it enables long-distance transmission of shore-based power to deep-sea equipment and internal wiring of submarine energy collection equipment.

[0056] The electrical penetration system can also be used in marine resource development and deep-earth engineering fields such as deep-sea mineral resource mining equipment, deep-sea oil and gas drilling platforms and ultra-deepwater downhole equipment to achieve reliable transmission of high-power electricity through pressure-resistant bulkheads or downhole tool walls, while resisting high temperature, high pressure and corrosive fluids downhole.

[0057] The above is merely an illustrative description of the application scenarios of the electrical cabin system in this application, and is not intended to limit the application scenarios of the electrical cabin system in this application.

[0058] The electrical penetration system includes a cabin (not shown in the figure) and a penetration connection device 10. The cabin has bulkheads that enclose an internal storage space, which can be used to install various electrical equipment and control units.

[0059] For example, power modules, power distribution units, control circuit boards, signal processing modules, and related cable assemblies can be installed within the containment space. The enclosure can isolate external seawater and corrosive media, providing a dry and stable working environment for the equipment within the containment space.

[0060] The bulkhead has mounting holes for the through-cabin connection device 10 to pass through and be installed. The through-cabin connection device 10 passes through the mounting holes and is sealed to the bulkhead. The through-cabin connection device 10 can establish a power transmission channel at the mounting holes in the bulkhead, enabling the power module in the containment space to supply high current power to external loads, or to transmit signals collected by external sensors to the control unit inside the bulkhead.

[0061] Meanwhile, the sealed connection between the trans-tank connection device 10 and the bulkhead can prevent seawater and corrosive media in the high water pressure environment from seeping into the internal containment space of the tank through the installation hole, avoiding short circuits, corrosion or failure of various electrical equipment and control units in the containment space due to water ingress, ensuring the stable operation of the equipment in the containment space under long-term high pressure, high humidity and high salt spray environment, thereby improving the overall sealing safety, electrical transmission reliability and service life of the electrical trans-tank system.

[0062] Continue to refer to Figure 1 The inter-cabin connection device 10 includes a first housing 100 and a second housing 200. The first housing 100 has an axially extending first mounting cavity 100a inside, which can accommodate various functional components inside the inter-cabin connection device 10. One end of the first housing 100 passes through a mounting hole for connection to electrical equipment within the accommodating space. The other end of the first housing 100 is connected to the second housing 200.

[0063] The second housing 200 has a first end 211 and a second end 221. The first end 211 is fixedly connected to the first housing 100, and the second end 221 is configured to form an opening through which the conductor 21 of the cable 20 passes. A second mounting cavity 200a can be formed inside the second housing 200. After the conductor 21 of the cable 20 passes through the opening of the second end 221, it enters the first mounting cavity 100a through the second mounting cavity 200a.

[0064] The second housing 200 may include a first portion 210 and a second portion 220. The first portion 210 extends along a first direction X and has a first end 211 for connection to the first housing 100. The second portion 220 has a second end 221 connected to the end of the first portion 210 opposite to the first housing 100 and extends along a second direction. The second portion 220 forms an opening through which the conductor 21 of the cable 20 passes, and guides the conductor 21 of the cable 20 into the second mounting cavity 200a along the second direction through the opening of the second end 221.

[0065] In this embodiment, the first direction X is parallel to the axial direction of the first housing 100, and there is an angle between the first direction X and the second direction. By arranging the extension direction of the first part 210 at an angle to the extension direction of the second part 220, the conductor 21 of the cable 20 turns from the second direction to the first direction X inside the second mounting cavity 200a and enters the first mounting cavity 100a. This allows for a change in the wiring direction of the through-cabin connection device 10, enabling the conductor 21 of the cable 20 to be routed along the surface of the cabin wall. This avoids the need for additional bending of the conductor 21 of the cable 20 after it extends from the opening of the second end 221 to be routed along the cabin wall. This saves external installation space, reduces the risk of excessive bending of the conductor 21 of the cable 20, and reduces damage to the conductor 21 and insulation layer caused by bending.

[0066] In addition, the second housing 200 is set at an angle between the first part 210 and the second part 220, which can distribute the load of the cable 20 itself as well as external vibration, tension and other loads to the structure of the second housing 200, avoid stress concentration at the root of the conductor 21 of the cable 20, and improve the long-term reliability of the connection between the conductor 21 of the cable 20 and the second housing 200.

[0067] In one possible implementation, the angle between the first direction X and the second direction can be 90°, that is, the first direction X is perpendicular to the second direction Y. In this case, the conductor 21 of the cable 20 enters from the opening of the second end 221 in a direction perpendicular to the axial direction of the first housing 100, turns 90° inside the second mounting cavity 200a and enters the first mounting cavity 100a along the first direction X, realizing right-angle wiring, thereby maximizing the saving of external installation space of the cabin.

[0068] In this embodiment, the first housing 100 and the second housing 200 can be made of high-strength alloy material. This high-strength alloy material has sufficient structural strength to withstand radial and axial loads generated by the high water pressure in the deep sea, preventing deformation or damage to the first housing 100 and the second housing 200 under high pressure, and ensuring the positioning accuracy of the internal components and the stability of the sealing interface. Exemplarily, the materials of the first housing 100 and the second housing 200 can be titanium alloy, stainless steel, nickel-based alloy, or copper alloy, etc., and this embodiment does not impose specific limitations on these materials.

[0069] In some possible embodiments, the first housing 100 may also be provided with a locking member 120, which penetrates the first housing 100 and abuts against the outer wall of the second housing 200. Exemplarily, the locking member 120 may be a set screw, which penetrates the side wall of the first housing 100 radially, with its end abutting against the outer wall of the second housing 200 or penetrating into the second housing, thus achieving a secure connection between the first and second housings. The locking member 120 prevents relative rotation or axial loosening of the first housing 100 and the second housing 200 during use due to external vibration, impact, or the pulling force of the cable 20, ensuring a stable connection interface between the first housing 100 and the second housing 200.

[0070] In other possible embodiments, the first housing 100 and the second housing 200 can also be integrally formed to eliminate the potential leakage risk at the connection interface between the first housing 100 and the second housing 200, which is beneficial to improving the overall structural strength and sealing reliability of the trans-cabin connection device 10. The first housing 100 and the second housing 200 can also be connected by welding to achieve a higher connection strength. Of course, the first housing 100 and the second housing 200 can also adopt a detachable connection method to facilitate the assembly, maintenance and component replacement of the trans-cabin connection device 10. The embodiments of this application do not impose specific limitations on the connection method of the first housing 100 and the second housing 200.

[0071] Continue to refer to Figure 1 The trans-cabin connection device 10 also includes a first sealing part 300, which is disposed inside the first housing 100. Figure 2 A cross-sectional view of the conductive and insulating components provided in an embodiment of this application. (Refer to...) Figure 1 and Figure 2The first sealing portion 300 includes a conductive element 310 and an insulating element 320. The conductive element 310 is embedded within the insulating element 320 and extends through the insulating element 320 along the axial direction of the first housing 100. One end of the conductive element 310 is used for electrical connection with the conductor 21 of the cable 20, and the other end of the conductive element 310 is used for electrical connection with electrical equipment inside the housing. Exemplarily, the conductive element 310 can be made of copper, copper alloy, gold-plated copper, or a highly conductive metal material; this application embodiment does not impose specific limitations on this.

[0072] The insulating element 320 fills the interior of the first housing 100, isolating the conductive element 310 from the first housing 100 and achieving electrical insulation between them, thus preventing electrical continuity or creepage. Furthermore, a sealing fit can be formed between the outer wall of the insulating element 320 and the inner wall of the first housing 100 to prevent fluid from flowing along the axial direction of the first housing 100 between the inner wall of the first housing 100 and the outer wall of the insulating element 320. Exemplarily, the insulating element 320 can be made of epoxy resin, ceramic, polytetrafluoroethylene, or composite insulating materials; this application embodiment does not impose specific limitations on this.

[0073] In some possible embodiments, the first sealing portion 300 may further include a first sealing ring 330, which is disposed between the outer wall of the insulating member 320 and the inner wall of the first housing 100. The first sealing ring 330 can be used to fill the annular mating gap between the outer wall of the insulating member 320 and the inner wall of the first housing 100, blocking the flow path of fluid along the gap, thereby forming a seal between the insulating member 320 and the first housing 100, and improving the sealing reliability of the first sealing portion 300.

[0074] Multiple first sealing rings 330 can be provided, and these multiple first sealing rings 330 can be spaced apart along the axial direction of the first housing 100 to form multiple seals between the insulating component 320 and the first housing 100. When the sealing performance of one of the first sealing rings 330 deteriorates due to long-term use, material aging, or high-pressure creep, the remaining first sealing rings 330 can still maintain their sealing function, thereby providing sealing redundancy, avoiding the loss of overall sealing due to single-point seal failure, and improving the long-term sealing reliability and service life of the trans-tank connection device 10 in the deep-sea high-pressure environment.

[0075] In some possible embodiments, the first housing 100 may also be provided with a clamping screw ring 110, which is threadedly connected to the first housing 100 and presses against the end face of the insulating member 320 along the axial direction of the first housing 100. The clamping screw ring 110 can be used to apply an axial preload to the insulating member 320, pressing and fixing the insulating member 320 to a preset installation position inside the first housing 100.

[0076] By tightening the screw ring 110, the axial pressure acting on the insulating component 320 can be controlled to ensure the stability of the sealing interface between the insulating component 320 and the inner wall of the first housing 100 under high pressure, prevent gaps from forming at the sealing interface due to pressure fluctuations or material creep, and improve the sealing reliability of the first sealing part 300.

[0077] One end of the conductive element 310 near the second housing 200 is connected to the conductor 21 of the cable 20, thereby achieving electrical conduction between the conductor 21 of the cable 20 and the conductive element 310.

[0078] Figure 3 This is a schematic diagram of the structure of the first connector provided in an embodiment of this application. (Refer to...) Figure 1 and Figure 3 In some possible embodiments, a first connector 230 may be provided inside the second housing 200, and one end of the first connector 230 opposite to the first housing 100 is connected to the conductor 21 of the cable 20.

[0079] For example, the first connector 230 and the conductor 21 of the cable 20 can be connected by welding to achieve a low-resistance connection between the first connector 230 and the conductor 21 of the cable 20. This ensures that the connection point between the first connector 230 and the conductor 21 of the cable 20 will not become loose or have poor contact due to vibration, thermal expansion and contraction or material creep during long-term use, thus ensuring the long-term stability and reliability of the electrical connection.

[0080] The first connector 230 is connected to the conductive element 310 at one end near the first housing 100. Exemplarily, the first connector 230 and the conductive element 310 can be connected by an insertion method. Specifically, the first connector 230 may have a socket, and the conductive element 310 may have a corresponding insertion end. The socket is fitted around the insertion end of the conductive element 310, thus achieving an insertion fit between the first connector 230 and the conductive element 310.

[0081] In this way, a pluggable connection structure is formed between the first connector 230 and the conductive component 310, which facilitates the quick plugging and installation of the first connector 230 and the conductive component 310 during the assembly process of the through-cabin connection device 10, improving assembly efficiency. At the same time, during subsequent maintenance or repair, the first connector 230 and the conductive component 310 can be separated, which facilitates the inspection and replacement of each component inside the through-cabin connection device 10 one by one without the need for overall disassembly or destructive disassembly, reducing maintenance difficulty and repair costs.

[0082] One end of the conductive element 310 away from the second housing 200 is connected to the electrical equipment inside the cabin to realize electrical conduction between the conductive element 310 and the electrical equipment inside the cabin, and to complete the output of power signal from inside the cabin connection device 10 to the electrical equipment inside the cabin.

[0083] Figure 4 This is a schematic diagram of the structure of the second connector provided in an embodiment of this application. (Refer to...) Figure 1 and Figure 4 In some possible embodiments, a second connector 130 may also be provided inside the first housing 100. The second connector 130 is located on the side of the first sealing portion 300 away from the second housing 200, that is, at the end of the through-cabin connection device 10 near the interior of the cabin. One end of the second connector 130 is connected to the conductive member 310, and the other end of the second connector 130 is connected to the electrical equipment inside the cabin.

[0084] For example, the second connector 130 can be connected to the conductive component 310 by a plug-in method, and the second connector 130 can be connected to the electrical equipment inside the cabin by a plug-in or welding method. By providing the second connector 130, the connection method between the conductive component 310 and the electrical equipment inside the cabin can be converted and adapted, so that the output interface of the through-cabin connection device 10 can flexibly match the interface requirements of different equipment inside the cabin, thereby improving the versatility and assemblability of the through-cabin connection device 10.

[0085] Continue to refer to Figure 1 The trans-tank connection device 10 also includes a second sealing part 400, which is disposed between the second housing 200 and the conductor 21 of the cable 20 to seal the gap between the second housing 200 and the conductor 21 of the cable 20, preventing external seawater from seeping into the interior of the trans-tank connection device 10 along the annular gap between the outer wall of the conductor 21 of the cable 20 and the inner wall of the second housing 200.

[0086] Figure 5 for Figure 1 A magnified view of section A. (Refer to...) Figure 5 The second sealing portion 400 may include a sealing member 410 and a clamping member 420. The sealing member 410 is disposed at the second end 221 of the second housing 200 and sleeved on the outer periphery of the conductor 21 of the cable 20. The sealing member 410 is a radially expandable deformable member. The clamping member 420 is movably connected to the second housing 200. The clamping member 420 is configured to apply pressure to the sealing member 410 along the axial direction of the port of the second end 221, so that the sealing member 410 expands radially and clamps between the outer wall of the conductor 21 of the cable 20 and the inner wall of the second housing 200, thereby forming a sealing interface between the conductor 21 of the cable 20 and the second housing 200.

[0087] The clamping member 420 applies pressure to the seal 410 along the axial direction of the port of the second end 221 of the second housing 200. Under the pressure, the seal 410 can undergo radial deformation. The inner diameter of the seal 410 decreases and presses against the outer wall of the conductor 21 of the cable 20, while the outer diameter of the seal 410 increases and presses against the inner wall of the second housing 200. This allows the seal 410 to fill the annular gap between the outer wall of the conductor 21 of the cable 20 and the inner wall of the second housing 200, blocking the flow path of fluid along the gap.

[0088] Continue to refer to Figure 5 In some possible embodiments, the seal 410 may include at least one V-shaped sealing ring having an open end and a closed end, the open end facing the port of the second end 221 and the closed end facing away from the port of the second end 221. The open end of the V-shaped sealing ring can expand radially outward under pressure, so that the circumferential edge of the open end fits against the outer wall of the conductor 21 of the cable 20 and the inner wall of the second housing 200.

[0089] The higher the external water pressure, the greater the pressure acting on the open end of the V-shaped sealing ring, and the tighter the fit between the open end and the sealing surface. In other words, the V-shaped sealing ring has self-tightening sealing characteristics and is particularly suitable for deep-sea high-pressure environments.

[0090] In some possible embodiments, the clamping member 420 may include a pressure ring 421, a fastener 422, and a support member 423. The support member 423 is disposed at the open end of the V-shaped seal ring to provide axial support for the V-shaped seal ring and prevent the V-shaped seal ring from undergoing excessive axial displacement under pressure and losing its sealing effect.

[0091] The pressure ring 421 abuts against the closed end of the V-shaped sealing ring, and is used to uniformly transmit the axial force applied by the fastener 422 to the closed end of the V-shaped sealing ring. The fastener 422 is connected to the second housing 200 and abuts against the pressure ring 421. Exemplarily, the fastener 422 can be a tail thread sleeve, which is threaded to the second end 221 of the second housing 200. By engaging the tail thread sleeve, the pressure ring 421 is driven to compress the V-shaped sealing ring axially, causing the lip of the V-shaped sealing ring to expand radially. This allows adjustment of the radial compression of the V-shaped sealing ring, enabling the seal 410 to obtain the required pre-compression and ensuring that the seal 410 has sufficient sealing capacity.

[0092] In this way, by setting the second sealing part 400, the transshipment connection device 10 of this application can form a radial sealing structure at the inlet end of the cable 20, preventing external seawater from seeping into the interior of the transshipment connection device 10 along the outer wall of the conductor 21 of the cable 20, thus ensuring the sealing safety of the transshipment connection device 10 in the deep-sea high water pressure environment.

[0093] In some possible embodiments, the transom connection device 10 further includes a vulcanized layer 500, which is connected to the second end 221 of the second housing 200, and at least a portion of the vulcanized layer 500 covers the outside of the second sealing portion 400. The vulcanized layer 500 can be used to cure the conductor 21 of the cable 20 to the second end 221 of the second housing 200 into one piece through a vulcanization process. Exemplarily, the vulcanized layer 500 can be made of an elastic material resistant to seawater aging, such as fluororubber, silicone rubber, EPDM rubber, polyurethane elastomer, or a composite modified material thereof.

[0094] The vulcanized layer 500 can be formed into a dense, elastic sealant through rubber vulcanization, hot vulcanization, or pre-formed vulcanization overmolding processes. This application embodiment does not impose specific limitations on this. In this application embodiment, the thickness of the vulcanized layer 500 can be set to 1mm-8mm. For example, the thickness of the vulcanized layer 500 can be 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, etc., to provide sufficient abrasion and tear resistance while ensuring a smooth and conformable fit.

[0095] The vulcanized layer 500 fills the outer periphery of the second sealing portion 400 and the end region of the second end 221 of the second housing 200, thus covering at least a portion of the second sealing portion 400. Through the interface between the vulcanized layer 500 and the second end 221 of the second housing 200 and the interface between the vulcanized layer 500 and the conductor 21 of the cable 20, the vulcanized layer 500 can form a sealed connection with the second housing 200 and the conductor 21 of the cable 20, respectively, thereby wrapping and protecting the second sealing portion 400.

[0096] In this way, when the sealing performance of the second sealing part 400 deteriorates due to long-term use, material aging, or high-pressure creep, the vulcanized layer 500 can still maintain the seal between the second housing 200 and the conductor 21 of the cable 20, preventing external seawater from seeping in along the second end 221, thereby providing sealing redundancy, avoiding the loss of overall sealing function due to single-point seal failure, and further improving the sealing reliability of the tail inlet end of the trans-tank connection device 10.

[0097] In addition, the vulcanized layer 500 covering the outside of the second sealing part 400 can provide physical protection for the second sealing part 400, preventing the second sealing part 400 from being damaged or displaced due to external collisions or scratches during the use or transportation of the through-cabin connection device 10, ensuring the structural integrity of the second sealing part 400 during installation and use, and improving the sealing reliability and durability of the through-cabin connection device 10.

[0098] Continue to refer to Figure 1The through-cabin connection device 10 also includes a filling part (not shown in the figure), which is located on the side of the second sealing part 400 near the first housing 100. The filling part covers the outer periphery of the conductor 21 of the cable 20, and the conductor 21 of the cable 20 passes through the filling part and is electrically connected to the conductive member 310.

[0099] The filling portion may include a potting compound, which fills the internal cavity of the second housing 200 and cures to fix the conductor 21 of the cable 20 within the second housing 200. By filling the internal cavity of the second housing 200 with potting compound and allowing it to cure, the potting compound can fill the space between the inner wall of the second housing 200 and the conductor 21 of the cable 20, forming a solid filling structure inside the second housing 200 that is tightly bonded to both the second housing 200 and the conductor 21 of the cable 20, thereby creating a rigid connection between the conductor 21 of the cable 20 and the second housing 200.

[0100] In some possible embodiments, the potting compound can be any one or more of epoxy resin-based potting materials, polyurethane-based potting materials, or silicone-based potting materials. Epoxy resin-based materials have high mechanical strength and adhesion, making them suitable for applications requiring enhanced fixation of the conductor 21 of the cable 20. Polyurethane-based materials have good flexibility and stress buffering capacity, making them suitable for conditions involving vibration or thermal expansion and contraction. Silicone-based materials have good hydrolysis resistance and temperature cycling resistance, making them suitable for deep-sea environments with long-term seawater immersion or significant temperature variations. This application does not specifically limit the type of potting compound.

[0101] In this way, the position of the conductor 21 of the cable 20 inside the second housing 200 can be completely fixed. When the through-tank connection device 10 is subjected to high water pressure in the deep sea, the filling part can restrain the axial movement and radial creep of the conductor 21 of the cable 20 under the action of high water pressure, keep the relative position of the electrical connection point between the conductor 21 of the cable 20 and the conductive part 310 stable, and avoid the electrical connection point from being subjected to force or displacement due to the movement of the conductor 21, which could lead to poor contact or electrical fault.

[0102] Meanwhile, after the filling part fills the internal cavity of the second housing 200, it can block the path of fluid flowing from the outer wall of the conductor 21 of the cable 20 to the first housing 100 through the gap between the inner wall of the second housing 200 and the outer wall of the conductor 21 of the cable 20. Together with the insulating part 320 of the first sealing part 300, it forms a continuous sealing structure. When the external cable 20 is damaged or broken, it can prevent seawater from leaking from the outer wall of the conductor 21 of the cable 20 to the hull.

[0103] An inner threaded sleeve 600 may also be provided between the second sealing part 400 and the filling part. The inner threaded sleeve 600 can be sleeved on the outer periphery of the conductor 21 of the cable 20 and connected to the inner wall of the second housing 200 to keep the conductor 21 of the cable 20 at the center position of the second housing 200.

[0104] By setting the inner threaded sleeve 600, the coaxiality between the conductor 21 of the cable 20 and the inner wall of the second housing 200 can be maintained, so as to ensure that the compression of the sealing member 410 in the second sealing part 400 on the outer periphery of the conductor 21 of the cable 20 is uniform and consistent, and to avoid the sealing member 410 being compressed too much on one side and insufficient on the other side due to the eccentricity of the conductor 21 of the cable 20, thereby ensuring that the sealing effect of the second sealing part 400 is uniform and reliable.

[0105] For example, the inner threaded sleeve 600 can be disposed between the second sealing part 400 and the filling part. In this way, the inner threaded sleeve 600 can also serve as a separator between the second sealing part 400 and the filling part, separating the area where the second sealing part 400 is located from the area where the filling part is located along the axial direction of the second housing 200, preventing the potting compound from flowing into the area where the second sealing part 400 is located before curing and affecting the installation and normal operation of the seal 410.

[0106] In some possible implementations, the potting compound for the filling portion is any one of epoxy resin, polyurethane, or silicone. For example, the potting compound is a high-strength rigid structural adhesive that, after curing, forms a high-strength solid filling layer, providing stable structural support for the conductor 21 of the cable 20. Through the cooperation between the filling portion and the inner threaded sleeve 600, the conductor 21 of the cable 20 simultaneously achieves coaxial positioning (provided by the inner threaded sleeve 600) and fixed filling (provided by the filling portion) within the second housing 200, further improving the positioning accuracy and fixing reliability of the conductor 21 of the cable 20 within the second housing 200, ensuring the long-term stability of the through-hull connection device 10 under complex conditions such as high water pressure and vibration in the deep sea.

[0107] It should be noted that, in this embodiment of the application, the cable 20 may include, from the inside out, a conductor 21, an insulation layer (not shown in the figure) covering the outer periphery of the conductor 21, an inner sheath (not shown in the figure) covering the outer periphery of the insulation layer, an aramid reinforcement layer (not shown in the figure) disposed on the outer periphery of the inner sheath, and an outer sheath 22 covering the outer periphery of the aramid reinforcement layer.

[0108] In this cable, conductor 21 is used to conduct current, insulation layer is used to achieve electrical insulation between conductors 21 and insulation between conductor 21 and the outside, and aramid fiber is used as a load-bearing element to withstand the tensile load of cable 20. After cable 20 enters second housing 200 through the opening at second end 221, outer and inner sheaths are peeled off, and insulation layer, conductor 21 and aramid fiber enter the interior of second housing 200.

[0109] In some possible embodiments, after the aramid fiber is inserted into the second housing 200, it can be cured integrally with the second end 221 of the second housing 200 through a vulcanization process. That is, the aramid fiber is embedded inside the vulcanized layer 500 and serves as a reinforcing structure of the vulcanized layer 500, thereby transferring the tensile load of the cable 20 to the second housing 200 and assisting in achieving a seal at the second end 221. It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification may include specific features, structures, or characteristics, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. In addition, when describing a specific feature, structure, or characteristic in conjunction with embodiments, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0110] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "one" can be understood to convey either singular or plural usage.

[0111] It should be readily understood that the terms “on,” “above,” and “on top of” in this application should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0112] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90° or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0113] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A compartment connection device, characterized in that, include: First housing (100); The second housing (200) has a first end (211) and a second end (221); the first end (211) is connected to the first housing (100), and the second end (221) is configured to form an opening through which the conductor (21) of the cable (20) passes; A first sealing part (300) is disposed in the first housing (100). The first sealing part (300) includes a conductive element (310) and an insulating element (320). The conductive element (310) is embedded in the insulating element (320), and the conductive element (310) passes through the insulating element (320) along the axial direction of the first housing (100). The second sealing part (400) is disposed between the second housing (200) and the conductor (21) of the cable (20) for sealing the gap between the second housing (200) and the conductor (21) of the cable (20); A filling portion is filled inside the second housing (200), and the filling portion is located on the side of the second sealing portion (400) near the first housing (100); the filling portion covers the outer periphery of the conductor (21) of the cable (20), the conductor (21) of the cable (20) passes through the filling portion and is electrically connected to the conductive element (310).

2. The trans-cabin connection device according to claim 1, characterized in that, The filling portion includes a potting compound that fills the internal cavity of the second housing (200) and cures to fix the conductor (21) of the cable (20) inside the second housing (200).

3. The trans-cabin connection device according to claim 1, characterized in that, The first sealing part (300) further includes a first sealing ring (330), which is disposed between the outer wall of the insulating member (320) and the inner wall of the first housing (100).

4. The trans-cabin connection device according to claim 1, characterized in that, The first housing (100) is also provided with a locking member (120), which penetrates the first housing (100) and abuts against the outer wall of the second housing (200).

5. The trans-cabin connection device according to any one of claims 1-4, characterized in that, The second sealing part (400) includes a sealing element (410) and a pressing element (420). The sealing element (410) is disposed at the second end (221) and sleeved on the outer periphery of the conductor (21) of the cable (20), and the sealing element (410) is a deformable element; The clamping member (420) is movably connected to the second housing (200) and is configured to apply pressure to the seal (410) axially along the port of the second end (221) so that the seal (410) expands radially and clamps between the conductor (21) of the cable (20) and the second housing (200).

6. The inter-cabin connection device according to claim 5, characterized in that, The seal (410) includes at least one V-shaped sealing ring having an open end and a closed end, the open end facing the port and the closed end facing away from the port.

7. The trans-cabin connection device according to claim 6, characterized in that, The clamping member (420) includes a pressure ring (421), a fastener (422), and a support member (423). The support member (423) is disposed at the open end of the V-shaped sealing ring and is used to provide axial support for the V-shaped sealing ring. The pressure ring (421) abuts against the closed end of the V-shaped sealing ring. The fastener (422) is connected to the second housing (200) and abuts against the pressure ring (421).

8. The trans-cabin connection device according to any one of claims 1-4, characterized in that, It also includes a vulcanized layer (500) connected to the second end (221) of the second housing (200), and at least a portion of the vulcanized layer (500) covers the outside of the second sealing portion (400).

9. The trans-cabin connection device according to any one of claims 1-4, characterized in that, The second housing (200) includes a first portion (210) and a second portion (220), the first portion (210) extending along a first direction having a first end (211), and the second portion (220) having a second end (221); the second portion (220) is connected to one end of the first portion (210) away from the first housing (100), and the second portion (220) extends along a second direction, the first direction being parallel to the axial direction of the first housing (100), and there is an angle between the first direction and the second direction.

10. An electrical cabin penetration system, characterized in that, include: The trans-cabin connection device (10) according to any one of claims 1-9; The cabin has a bulkhead with mounting holes. The first housing (100) of the trans-cabin connection device (10) is inserted into the mounting hole, and the first housing (100) of the trans-cabin connection device is sealed to the cabin wall.

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