Marine environment resistant electric connector

Abstract

The invention relates to the field of cable installation, in particular to a marine environment resistant electric connector which comprises a male connecting seat and a female connecting seat, the male connecting seat comprises a first gold-plated outer cylinder and a first inner core, and the inner wall of the first gold-plated outer cylinder is provided with at least one PTFE insulating layer; the first inner core comprises a male terminal, a first PTFE insulator, a first crimping sleeve and a first heat-shrinkable sleeve, the front end of the male terminal is a connecting plug, the rear end of the male terminal is a first wiring part used for being connected with a cable, the male terminal is arranged in the first crimping sleeve, and the first PTFE insulator is arranged in the first crimping sleeve; the first PTFE insulator is arranged in the first crimping sleeve and is positioned between the inner wall of the first crimping sleeve and the male terminal; the first heat-shrinkable sleeve is sleeved in the first crimping sleeve to form the first inner core; through reasonable material selection and structural design, the cable has remarkable advantages in the aspects of corrosion resistance, sealing performance, electrical insulating performance and signal transmission stability, and can reliably operate in a marine environment for a long time.

Description

Technical Field

[0001] The invention relates to the field of cable installation, and in particular to an ocean environment resistant electrical connector. Background Art

[0002] As the world continues to develop and utilize marine resources, deep-sea engineering technology has gradually become an important area of ​​marine development. In this context, marine environment-resistant electrical connectors are important components for achieving efficient transmission of deep-sea signals and electrical energy. Their performance is directly related to the success or failure of marine engineering. However, due to its special complexity, the deep-sea environment places stringent requirements on the performance of electrical connectors.

[0003] The challenges of deep sea environment mainly include: High pressure and watertightness requirements: The water pressure in the deep sea can reach several megapascals. Any slight sealing failure may cause water ingress and damage to the equipment, thereby interrupting signal or power transmission.

[0004] Corrosive environment: The deep sea environment is filled with high-concentration salt spray, moisture and a variety of corrosive ions, which are extremely corrosive to both metal and non-metal materials.

[0005] Complex temperature changes: There is a large temperature difference between different sea areas, and the equipment needs to withstand long-term ultraviolet radiation, high humidity erosion and mechanical stress in low temperature environments.

[0006] Vibration and mechanical loss: Deep-sea equipment often needs to withstand strong water impact and vibration, which can easily lead to loose connectors or poor contact.

[0007] Existing products still have deficiencies in terms of sealing, corrosion resistance and connection reliability. For example: Failure of watertightness: The sealing materials of existing connectors are prone to aging after long-term use, causing water to enter the equipment.

[0008] Unstable contact performance: Deep-sea vibration and water flow can easily cause the contact points to loosen or oxidize, reducing the quality of signal transmission.

[0009] Insufficient corrosion resistance of materials: Metal parts are easily damaged by salt spray corrosion, and non-metallic materials are also prone to deformation or deterioration under long-term high-pressure environments.

[0010] Based on the above problems, it is urgent to design an electrical connector that is resistant to marine environments and has excellent corrosion resistance and stable sealing performance. By optimizing the structural design, material selection, and coating process, the service life and transmission stability of the connector in the complex deep-sea environment can be significantly improved.

[0011] This study proposed an innovative marine environment resistant electrical connector, which combines new materials and sealing structure design. It can meet the multiple requirements of deep-sea engineering for high water tightness, high corrosion resistance, high reliability and plug-and-play convenience, and provide reliable signal and power transmission guarantee for deep-sea operation equipment. Summary of the invention

[0012] The purpose of the present invention is to provide a marine environment resistant electrical connector which can ensure reliable signal and power transmission and meet the requirements of deep sea engineering for high water tightness, high corrosion resistance and high reliability.

[0013] The object of the present invention is achieved in that: A marine environment resistant electrical connector, comprising a male connector and a female connector, the male connector comprising a first gold-plated outer cylinder and a first inner core, the inner wall of the first gold-plated outer cylinder being provided with at least one PTFE insulating layer, the first inner core comprising a male terminal, a first PTFE insulator, a first crimping sleeve and a first heat shrink sleeve, the front end of the male terminal being a plug connector, the rear end of the male terminal being a first wiring portion for connecting a cable, the male terminal being placed in the first crimping sleeve, the first PTFE insulator being placed in the first crimping sleeve and being located between the inner wall of the first crimping sleeve and the male terminal, the first heat shrink sleeve being sleeved in the first crimping sleeve to form the first inner core; The first inner core is placed in the first gold-plated outer cylinder, the PTFE insulating layer is in close contact with the first inner core, the plug connector faces the front port of the first gold-plated outer cylinder, and the first wiring portion faces the rear port of the first gold-plated outer cylinder; The female connection seat comprises a second gold-plated outer cylinder, a second inner core and a sealing component, the inner wall of the second gold-plated outer cylinder is provided with at least one PTFE insulation layer, the second inner core comprises a female terminal, a second PTFE insulator, a second crimping sleeve and a second heat shrink sleeve, the front end of the female terminal is a plug socket, the rear end of the female terminal is a second wiring portion for connecting a cable, the female terminal is placed in the second crimping sleeve, the second PTFE insulator is placed in the second crimping sleeve and is located between the inner wall of the second crimping sleeve and the male terminal, and the second heat shrink sleeve is sleeved in the second crimping sleeve to form the second inner core; The second inner core is placed in the second gold-plated outer cylinder, the PTFE insulating layer is in close contact with the second inner core, the socket faces the front port of the second gold-plated outer cylinder, and the second wiring portion faces the rear port of the second gold-plated outer cylinder; The sealing component comprises a locking nut, a toothed washer and a rubber ring, wherein the toothed washer and the rubber ring are sequentially arranged at the front end of the second gold-plated outer cylinder, and the locking nut is sleeved on the toothed washer and the rubber ring and locks the second gold-plated outer cylinder, so that the toothed washer and the rubber ring are fixed at the front end of the second gold-plated outer cylinder; The front end of the second gold-plated outer cylinder of the female connector is inserted into the inner cavity of the front port of the first gold-plated outer cylinder of the male connector until the plug connector of the male terminal is inserted into the plug socket of the female terminal. The rubber ring is tightly attached to the inner wall of the first gold-plated outer cylinder, and the PTFE insulating layer of the inner cavity of the first gold-plated outer cylinder is tightly attached to the second gold-plated outer cylinder, so as to realize the sealed connection between the female connector and the male connector.

[0014] Both the male and female connectors have gold-plated outer barrels, which significantly improves the connector's ability to resist corrosive salt spray and moisture erosion in the marine environment and extends its service life.

[0015] The PTFE insulation layer on the inner wall of the gold-plated outer cylinder provides excellent electrical insulation performance to avoid electrical short circuits. It is also resistant to high temperatures and aging, ensuring stable operation in the high humidity and high salt environment of the ocean.

[0016] The sealing components (including locking nuts, toothed washers and rubber rings) are combined with the plug-in structure to ensure that the connector is reliably watertight and airtight after plugging, preventing seawater or humid air from entering the connector.

[0017] The plug connector of the male terminal and the socket structure of the female terminal are precisely matched to ensure the stability of the plug and efficient signal transmission.

[0018] The PTFE insulation layer between the first gold-plated outer cylinder and the second gold-plated outer cylinder fits tightly to form an additional physical barrier, further enhancing the sealing effect.

[0019] The male and female connectors are designed with an easy-to-plug docking structure, making installation and removal easier and more convenient, while reducing the risk of damage caused by manual operation.

[0020] The plug-in structure ensures stable electrical contact between the male and female terminals, provides low contact resistance and improves signal transmission stability, maintaining high-performance transmission even in long-term operation in marine environments.

[0021] The overall design meets the requirements of resistance to marine environments and can operate stably in environments with extreme temperatures, pressures, high humidity, and high salt levels. It is suitable for marine exploration, deep-sea communications, and other fields.

[0022] Through reasonable material selection (such as gold-plated outer tube and PTFE insulation layer) and structural design (such as sealing components and plug-in docking structure), it has significant advantages in corrosion resistance, sealing, electrical insulation and signal transmission stability. It is an electrical connector design that can operate reliably for a long time in the marine environment.

[0023] The purpose of the present invention can also be solved by the following technical measures: Furthermore, the plug connector of the male terminal and the inner wall of the plug socket of the female terminal are coated with a gold-plated film for improving signal transmission performance; The plug connector surface of the male terminal is provided with protrusions with multiple contact points at intervals, and the inner wall of the plug socket of the female terminal is provided with grooves matching the protrusions; The raised surface is plated with highly conductive and corrosion-resistant material, and the female terminal socket is internally provided with symmetrically distributed flexible contact clips made of memory alloy, which elastically clamp the male terminal connector to ensure stable signal transmission.

[0024] The gold-plated film has good electrical conductivity and can effectively reduce the contact resistance of the connector, ensuring more stable and efficient signal transmission. Compared with graphene, the conductivity and stability of the gold-plated film perform well in both low-frequency and high-frequency signal transmission, and is especially suitable for occasions with high electrical connection requirements.

[0025] The gold-plated film has strong corrosion resistance and can effectively prevent seawater, moisture, salt spray and other corrosive substances from corroding the contact surface. The metal plating has excellent salt spray resistance and is particularly suitable for use in harsh conditions such as marine environments. This corrosion resistance helps maintain the long-term stable operation of the electrical connector and avoids performance degradation or failure caused by corrosion.

[0026] The gold-plated layer has a high hardness and a low friction coefficient, which can effectively reduce contact wear during the plugging and unplugging process, increase the number of plugging and unplugging times, and extend the service life of the connector. Especially when high-frequency signals are transmitted, the gold layer surface is relatively smooth, which can reduce the friction between the plug connector and the socket and avoid signal interference.

[0027] The gold-plated film not only provides excellent electrical conductivity, but also helps to stabilize the signal transmission and reduce signal fluctuations or loss caused by poor contact. Due to the good contact of the gold-plated surface, the electrical contact of the plug-in part can still maintain a low resistance even after long-term use, avoiding signal quality degradation.

[0028] Since the gold-plated film is not easily oxidized, it can effectively avoid the increase in contact resistance caused by the formation of an oxide layer, thereby further ensuring the signal transmission stability and reliability of the connector after long-term use.

[0029] The production process of gold-plated film is relatively mature and low-cost. Gold-plated film is widely used, has good processability and controllability, and can achieve stability and consistency in large-scale production.

[0030] Gold-plated film is widely used in various electrical connectors, electronic components and high-precision equipment. Its superior electrical properties and durability enable it to play a role in various electrical connectors. It is especially suitable for use in areas that require long-term reliable operation, such as marine, military, aerospace and other environments.

[0031] Gold-plated film can effectively improve signal transmission performance, and has good corrosion resistance, low contact resistance, higher wear resistance and more stable signal transmission performance, and has a more mature and economical production process. Therefore, the use of gold-plated film in marine environment electrical connectors is still a very effective and practical choice.

[0032] The male terminal's plug connector is provided with a multi-point contact protrusion, which forms a multi-point contact structure with the groove matching the inner wall of the female terminal socket, significantly increasing the contact area and the number of contact points, thereby enhancing the stability and conductivity of the connection and reducing the contact resistance.

[0033] The concave-convex multi-point contact design ensures that the electrical connection remains stable under high vibration or drastic environmental changes, effectively preventing signal loss or transmission interruption. It is particularly suitable for application scenarios such as wave impact or equipment shaking in marine environments.

[0034] The raised surface is plated with highly conductive anti-corrosion material, which delays the damage to the contact surface caused by corrosive environments such as marine salt spray, ensures that the contact performance is not affected during long-term use, and reduces maintenance costs.

[0035] The memory alloy flexible contact clip inside the female terminal socket has adaptive elasticity and can automatically adjust and clamp according to the shape of the plug connector to ensure uniform contact and further improve the reliability of the electrical connection.

[0036] The memory alloy material has the ability of anti-fatigue, anti-corrosion and long-term deformation recovery. The flexible contact clip is not prone to wear or performance degradation during plugging and unplugging operations, which greatly improves the overall durability and service life of the connector.

[0037] The multi-point contact structure reduces the dependence of a single contact point on connection quality. Even if some contact points are contaminated or slightly oxidized, the remaining contact points can still ensure good signal transmission.

[0038] The flexible contact clip provides appropriate clamping force without excessively increasing the insertion and extraction force, ensuring that users can operate easily while reducing the damage to the connector structure caused by frequent insertion and extraction.

[0039] This design significantly improves the signal transmission stability, corrosion resistance and service life of the connector through the combination of multi-point contact protrusions and flexible contact clips, and is particularly suitable for use in harsh marine environments such as high humidity, high salt, and high vibration. This innovative design not only enhances electrical performance, but also takes into account operational convenience and structural durability, and is a high-performance connector optimization solution.

[0040] Furthermore, the male connecting seat also includes an outer sleeve and a spring sheet, the outer wall of the first gold-plated outer sleeve is provided with a blocking ring, the outer sleeve is sleeved on the first gold-plated outer sleeve, the outer sleeve and the first gold-plated outer cylinder are slidably connected, the blocking ring is located in the inner cavity of the outer sleeve, the spring sheet is placed between the outer sleeve and the blocking ring, one end of the spring sheet abuts against the inner wall of the outer sleeve, and the other end of the spring sheet abuts against the blocking ring, and the elastic force of the spring sheet maintains pushing the first gold-plated outer cylinder.

[0041] Through the elastic force of the spring, the first gold-plated outer cylinder is pushed to always maintain appropriate forward pressure, so that the contact between the male connector and the female connector is closer, reducing the loose connection caused by external force vibration or environmental factors, and ensuring the stable performance of the connector.

[0042] The elastic force provided by the shrapnel acts as a buffer, which can absorb external impact force, reduce the direct impact on the internal connection structure, and improve the connector's ability to resist impact and vibration in harsh marine environments.

[0043] The provision of the shrapnel reduces the wear caused by direct contact during the connection process, protects the first gold-plated outer cylinder and the sliding parts between the first gold-plated outer cylinder and the outer cylinder, and improves the overall durability of the male connector.

[0044] The sliding connection between the outer sleeve and the first gold-plated outer sleeve forms a continuous sealing pressure under the push of the spring, which effectively improves the waterproof performance of the connector and adapts to extreme conditions such as high humidity and high salt spray in the marine environment.

[0045] The spring push structure allows the first gold-plated outer cylinder to have a certain degree of adaptive adjustment ability during the docking process, so that the male and female connectors can be docked more quickly and accurately, thereby improving the connection efficiency and reducing the requirements for operating accuracy.

[0046] The sliding design of the outer sleeve and the first gold-plated outer sleeve makes it easier for users to disassemble and assemble the connector. Combined with the resetting function of the spring, the steps of connection and separation operations are simplified, saving time.

[0047] The shrapnel is made of elastic material, and its force is evenly distributed. It can maintain stable performance in multiple compression and release cycles, effectively extending the anti-fatigue life of the connector and meeting the needs of long-term and frequent use.

[0048] The elastic force of the shrapnel ensures that the first gold-plated outer cylinder can maintain appropriate preload under dynamic load, avoiding unstable connection due to external pressure changes. It is particularly suitable for application scenarios of marine equipment such as ships and buoys.

[0049] The blocking ring provides a positioning reference for the shrapnel, so that the shrapnel can act accurately between the outer sleeve and the first gold-plated outer sleeve, avoiding failure of the shrapnel due to position offset and improving the overall stability of the sealing and connection system.

[0050] The structural design of the outer sleeve, spring and blocking ring is independent and modular, which is convenient for maintenance or replacement during use, reducing maintenance costs and improving the sustainability of the connector.

[0051] This design provides continuous connection pressure, stable sealing effect and good impact resistance for the male connector through the synergistic effect of the outer sleeve, blocking ring and spring, while achieving convenient disassembly and assembly functions and low maintenance requirements. Especially in marine environments, it can significantly improve the reliability, durability and adaptability of the connector.

[0052] Furthermore, the outer wall of the first gold-plated outer cylinder and the outer wall of the second gold-plated outer cylinder are both provided with a signal shielding layer, the signal shielding layer is made of silver-plated copper foil or graphene coating, the thickness of the shielding layer is 10-30um, and the outer layer of the signal shielding layer is also covered with a corrosion-resistant fluorocarbon polymer coating to enhance the corrosion resistance and form a continuous shielding loop.

[0053] The signal shielding layer is made of highly conductive silver-plated copper foil or graphene coating, which can effectively shield external electromagnetic interference (EMI) and radio frequency interference (RFI), ensuring the stability and integrity of signal transmission, and is particularly suitable for complex electromagnetic environments.

[0054] The continuous shielding loop can significantly reduce signal leakage and signal crosstalk problems, thereby improving the connector's ability to transmit high-frequency signals and meeting the high signal quality requirements of modern communications and data transmission.

[0055] The fluorocarbon polymer coating on the outer layer has excellent chemical corrosion resistance and salt spray resistance, which can effectively protect the shielding layer material from salt, moisture and corrosive substances in the marine environment and extend the service life of the connector.

[0056] Fluorocarbon polymer coating has good weather resistance and UV resistance, which can slow down the oxidation and aging of the shielding layer material and maintain long-term electromagnetic shielding effectiveness and mechanical strength.

[0057] As a lightweight material, graphene coating significantly reduces the overall weight of the shielding layer, reducing the weight of the connector while ensuring shielding performance, making it suitable for weight-sensitive application scenarios (such as marine or aviation equipment).

[0058] The multi-layer composite design of the signal shielding layer (silver-plated copper foil or graphene coating combined with fluorocarbon polymer coating) can effectively absorb and resist external mechanical shocks, reducing the risk of structural damage to the connector caused by vibration or collision.

[0059] The 10-30 μm shielding layer thickness design provides sufficient mechanical strength and durability while taking into account the conductive performance, ensuring the consistency of the shielding effect in long-term use.

[0060] This multi-layer shielding structure is particularly suitable for use in marine environments with high salt spray, high humidity and corrosive chemicals, meeting the high requirements of connector performance in harsh environments.

[0061] The design significantly improves the signal transmission stability, durability and reliability of the connector in marine environments by setting a signal shielding layer on the outer walls of the first and second gold-plated outer cylinders and further covering them with a corrosion-resistant fluorocarbon polymer coating, combined with excellent electromagnetic shielding, corrosion resistance, weather resistance and lightweight properties. This optimized design is suitable for high-performance, anti-interference equipment applications, further broadening the scope of use of electrical connectors.

[0062] Furthermore, the cavity in front of the plug connector of the male terminal of the first gold-plated outer cylinder forms a plug-in cavity, and a flexible waterproof sealing layer made of nano-polymer material is provided on the inner wall of the plug-in cavity, and a micro-elastic buffer layer made of high-pressure resistant polymer elastic material with slight deformation ability is also provided between the inner wall of the plug-in cavity and the flexible waterproof sealing layer.

[0063] A flexible waterproof sealing layer is provided on the inner wall of the plug-in cavity, which can provide a reliable seal when the male terminal and the female terminal are plugged in, prevent corrosive media in the marine environment such as moisture and salt spray from invading the interior of the connector, effectively protect the internal electrical structure, and improve the waterproof performance.

[0064] The micro-elastic buffer layer is made of high-pressure resistant polymer elastic material, which can withstand stress changes under high-pressure environment, effectively avoiding the risk of failure of the sealing layer due to excessive pressure in deep-sea high-pressure environment, and ensuring the long-term sealing of the connector.

[0065] The micro-elastic buffer layer has the ability to deform slightly, which can absorb and alleviate the mechanical stress during the plug-in and unplug process and the impact of external vibration on the connector, avoiding damage to the sealing layer of the plug-in cavity due to mechanical stress concentration, thereby extending the service life of the connector.

[0066] The flexible waterproof sealing layer and the micro-elastic buffer layer work together to provide a double sealing structure: the flexible sealing layer achieves primary sealing, and the buffer layer enhances the sealing stability through its elastic properties, maintaining the sealing effect even after long-term use or multiple plugging and unplugging.

[0067] The flexible sealing layer of nanopolymer material has excellent corrosion resistance, aging resistance and chemical stability. It can adapt to the corrosive salt spray and humidity in the marine environment while maintaining excellent flexibility to avoid hardening or failure of the sealing layer caused by environmental factors.

[0068] The micro-elastic buffer layer reduces the hard contact friction between the plug cavity and the plug connector through its deformation ability, reduces the plugging and unplugging resistance, improves the plugging and unplugging smoothness, and reduces the wear of the internal components of the connector.

[0069] The double-layer protection structure combines the excellent performance of nano-scale materials and the buffering effect of polymer elastic materials, so that the plug-in cavity can maintain a long-term sealing effect in complex marine environments, reduce maintenance and replacement frequency, and improve the stability and reliability of the equipment.

[0070] Prevent salt water and corrosive substances from penetrating into the plug cavity, effectively avoid signal loss or short circuit caused by corrosion of conductive parts, and ensure that the electrical performance of the connector remains stable in harsh environments.

[0071] By setting a flexible waterproof sealing layer on the inner wall of the plug cavity and supplementing it with a micro-elastic buffer layer, a multi-layer protection design that can adapt to high pressure, vibration and corrosion environments is constructed. This structure significantly improves the connector's waterproof, anti-corrosion and mechanical impact resistance in marine environments, while optimizing plug-in performance and long-term reliability. It is an innovative improvement for harsh environment applications.

[0072] Furthermore, a guide groove is provided on the outer wall of the plug-in cavity, and a second gold-plated outer cylinder located on the periphery of the plug-in socket of the female connector forms a plug-in portion, and guide columns are provided at intervals on the outer wall of the plug-in portion; The guide post is first inserted into the front port of the guide groove, and then the plug-in part is moved to make the guide post slide to the rear port of the guide groove, causing the plug-in part to be fully inserted into the plug-in cavity. At this time, the plug connector of the male terminal is inserted into the plug socket of the female terminal, thereby realizing a sealed connection between the female connector and the male connector.

[0073] The guide groove on the outer wall of the plug-in cavity cooperates with the guide column on the outer wall of the plug-in part to guide the alignment of the female connector and the male connector during the plug-in process, preventing plug-in failure or damage to the internal structure of the connector due to misalignment, thereby ensuring a smooth plug-in operation.

[0074] The design of the guide column sliding into the guide groove provides a stable plugging path and fixing point, avoiding shaking or deviation during the plugging process, improving the stability of the plugging action, and reducing the wear on the connector components during the plugging and unplugging process.

[0075] The gradual insertion of the guide column ensures that the plug-in part completely enters the plug-in cavity, and at the same time the sealing component can be fully compressed, so that the flexible waterproof sealing layer and the micro-elastic buffer layer can play an effective role, further improving the sealing performance of the connector.

[0076] The guide grooves and guide posts provide clear restrictions on the plug-in direction, effectively avoiding forced insertion or incorrect connection problems caused by user misoperation, reducing the probability of operational errors and improving the reliability of equipment use.

[0077] Reduce mechanical damage to the internal structure of the connector due to plug-in offset or error. At the same time, the sliding fit of the guide design reduces the plug-in wear of the connector, which helps to extend the service life of the connector.

[0078] The cooperation between the guide groove and the guide column realizes a fast and precise alignment function, and the connection operation can be completed without additional adjustment, which improves the plugging and unplugging efficiency and is particularly suitable for scenarios that require frequent operations.

[0079] In the marine environment, operations are often affected by external factors such as water flow and vibration. The guide structure can effectively reduce these interferences and ensure reliable plug-in operations even under complex conditions.

[0080] The guide design ensures that the plug part and the plug cavity are fully matched, so that the plug connector of the male terminal and the plug socket of the female terminal are accurately contacted, reducing poor contact or abnormal signal transmission, and improving the electrical performance of the electrical connector.

[0081] The structural design of the guide groove and the guide column is conducive to the modular and standardized production of the connector, improves the consistency and interchangeability of the products, and facilitates maintenance and replacement.

[0082] By setting a guide groove on the outer wall of the plug cavity and a guide column on the outer wall of the plug part, an efficient and reliable guide plug structure is formed. This design not only improves the plug alignment accuracy and sealing performance, but also optimizes the operating experience and long-term stability of the connector, which is particularly suitable for electrical connector application scenarios in complex marine environments.

[0083] Furthermore, the guide column is a gold-plated guide column, the guide groove is an "L"-shaped guide groove, an outer ring body is provided at the entrance of the plug-in cavity, the inner cavity of the outer ring body and the entrance of the plug-in cavity are connected, and a guide groove opening is opened in the inner cavity of the outer ring body corresponding to the front end of the guide groove, and the guide groove opening is connected to the front end of the guide groove.

[0084] The guide column is made of gold-plated material, which has excellent corrosion resistance and good mechanical strength. It can maintain the stability of the guiding function for a long time in corrosive environments such as the ocean. The L-shaped guide groove design provides a multi-step alignment function, making the insertion more accurate and reliable.

[0085] The inner cavity of the outer ring body is connected to the entrance of the plug-in cavity, and is connected to the front end of the guide groove through the guide groove, so that the guide column can transition smoothly when entering the plug-in groove, reducing the jamming phenomenon caused by plug-in errors or uneven operating force, and improving the smoothness of plug-in.

[0086] The L-shaped guide groove defines the sliding path of the plug-in column, limits the plug-in direction, eliminates the possibility of incorrect plug-in direction, and improves the safety and reliability of the connector.

[0087] The gold-plated guide posts reduce the wear of the guide structure during sliding, while the guide notch design disperses the stress during insertion, reduces the local pressure of the guide slots and guide posts, and extends the service life of the connector.

[0088] The integrated design of the outer ring body and the entrance of the plug-in cavity, combined with the guide groove, provides additional sealing support, so that the sealing structure will not be affected by misalignment during the plug-in process, and at the same time improves the plug-in system's resistance to vibration and impact.

[0089] The setting of the guide groove allows the guide column to align with the front end of the guide groove more quickly, reducing the operator's debugging time; the L-shaped sliding path provides clear plug-in steps, allowing the plug-in operation to be completed quickly even in complex environments.

[0090] The outer ring provides a wider range of entry guidance, allowing the guide post to enter the guide groove smoothly, and accurate insertion can be achieved even in marine environments affected by water currents, vibrations or limited vision.

[0091] The L-shaped guide grooves and guide notches can be designed into standardized sizes according to application requirements, which helps modular production and compatibility expansion of connectors and facilitates collaboration with other devices.

[0092] The addition of gold-plated guide posts not only improves corrosion resistance, but also enhances the high-end texture of the overall product. At the same time, the design of the L-shaped guide groove and outer ring body allows the connector to adapt to a wider range of industrial, marine and communication environments.

[0093] By using gold-plated guide columns in combination with L-shaped guide grooves and providing an outer ring body and guide grooves, this design not only ensures guiding accuracy and plug-in stability, but also optimizes sealing performance, corrosion resistance and ease of operation. It is particularly suitable for electrical connector applications that require high reliability and high precision in marine environments.

[0094] Furthermore, it also includes an elastic component, the elastic component includes a memory alloy spring resistant to marine environment and an elastic pick, the memory alloy spring is arranged on one inner wall of the guide groove, the elastic pick is inclined from the front end of the guide groove to the rear end of the guide groove, one end of the elastic pick is connected to the memory alloy spring, the end of the elastic pick faces the other inner wall of the guide groove, the gap between the end of the elastic pick and the other inner wall of the guide groove forms a passing gap, and the passing gap is smaller than the diameter of the guide column; When the guide column slides to the elastic paddle, the guide column pushes the elastic paddle to swing and causes the memory alloy spring to deform, so that the size of the gap increases to be larger than the diameter of the guide column, so that the guide column passes through the gap and enters the rear port of the guide groove. When the guide column enters the rear port of the guide groove, the elastic paddle is reset under the action of the memory alloy spring, and the elastic paddle locks the position of the guide column at the rear port of the guide groove.

[0095] Through the collaboration of the elastic pick and the memory alloy spring, the guide column can be automatically locked when sliding into the rear port of the guide groove, preventing the connector from accidentally loosening due to external vibration, impact or environmental influences, significantly improving the stability and reliability after insertion.

[0096] The inclined arrangement of the elastic paddles and the deformation characteristics of the memory alloy spring allow the guide column to gradually release the force when passing through the gap, reducing the risk of damage caused by sticking or local resistance during the plug-in process, while ensuring smooth plug-in action.

[0097] The memory alloy spring is made of marine environment resistant materials and has excellent corrosion resistance. It can still maintain elasticity and functionality even in harsh environments such as salt spray and high humidity, and is suitable for special scenarios such as marine engineering.

[0098] The locking action of the elastic pick ensures that the guide post will not shift after being plugged into place, thereby achieving precise positioning and providing basic guarantee for the signal transmission stability of the connector.

[0099] The locking function of the elastic pick reduces the free movement space of the guide column at the rear end of the guide groove, effectively suppressing loosening or wear caused by external vibration, and increasing the reliability of the connector under complex working conditions.

[0100] The memory alloy spring has good deformation recovery ability. The elastic pick can maintain elastic reset during multiple plugging and unplugging processes, is not easy to wear, and extends the service life of the connector.

[0101] The dynamic change design of the gap allows operators to complete the plugging and locking operations of the guide column without additional tools, which simplifies the installation and removal process of the connector and improves on-site use efficiency.

[0102] Compared with traditional mechanical locking devices, the use of memory alloy springs and elastic paddles is smaller in size and lighter in weight, making it suitable for high-density or weight-restricted equipment integration applications.

[0103] The design of the elastic pick and memory alloy spring makes the locking function mandatory and directional to a certain extent, avoiding poor connection caused by operator's misinsertion or incomplete insertion.

[0104] Memory alloy materials have environmental response characteristics and can adjust their deformation characteristics according to environmental changes such as temperature and pressure, ensuring that the connector can maintain a stable connection in a dynamic environment.

[0105] This design achieves the functions of automatic adjustment and precise locking during the plug-in process through the combination of elastic picks and memory alloy springs, significantly improving the reliability, convenience and service life of the connector in the marine environment. At the same time, it effectively copes with the harsh requirements of high vibration, high corrosion and multiple plug-in and pull-out, providing an ideal electrical connection solution for marine engineering, diving equipment and deep-sea exploration.

[0106] Furthermore, a gripping portion is provided on the outer side of the elastic paddle, which is convenient for the user to swing the paddle to release the lock on the guide column, and a non-slip texture is provided on the surface of the gripping portion.

[0107] The provision of a grip portion enables the user to easily operate manually and quickly release the lock on the guide column by driving the elastic paddle to swing, thereby simplifying the connector disassembly process and reducing dependence on tools during use.

[0108] The anti-slip texture design increases the friction of the grip. Whether in a humid environment or wearing gloves, the user can hold the grip firmly to avoid misoperation caused by slipping, thereby improving operational safety.

[0109] Through the intuitive grip design, users can easily find the operating area, reducing the difficulty of use, shortening the learning curve, and improving the user-friendliness of the connector.

[0110] The design of the grip is suitable for various occasions where manual unlocking is required, whether it is quick unlocking in an emergency or reliable operation in harsh environments, it can ensure efficient use of the connector.

[0111] Compared to unlocking the elastic paddle directly by applying external force, the grip is a specially designed control area, which effectively avoids wear on the elastic paddle body during operation, thereby extending the service life of the elastic paddle.

[0112] The design of the gripping part provides convenient operation without significantly increasing the overall volume of the connector, thus maintaining the compactness of the connector structure and being suitable for high-density equipment integration requirements.

[0113] The anti-slip texture and grip design are particularly suitable for operations in marine environments. For example, in high humidity and high salt spray environments, operators can still quickly and safely unlock the connector to ensure normal use.

[0114] The setting of the grip portion saves the user from spending too much time looking for the unlocking position, and can complete the unlocking operation more efficiently. It is particularly suitable for application scenarios that require frequent disassembly and assembly.

[0115] The design of the grip is ergonomic, allowing users to hold it comfortably during operation, reducing fatigue and improving operating comfort during long-term use.

[0116] The controllable and convenient unlocking method reduces the risk of damage caused by violent operation, while optimizing the performance of the connector throughout its entire life cycle, ensuring its durability and reliability.

[0117] The optimized design of the grip and anti-slip texture further enhances the connector's ease of operation and reliability, allowing it to be easily disassembled in a variety of environments and occasions, and providing an excellent user experience and long-term use guarantee. It is particularly suitable for application scenarios in complex marine environments and high-frequency operation requirements.

[0118] Further, the rear outer wall of the first gold-plated outer cylinder is a threaded outer wall, the first wiring portion is connected to a cable, the cable passes through the rear port of the first gold-plated outer cylinder and extends outward, and a corrosion-resistant sealant is filled between the first gold-plated outer cylinder and the cable, and the corrosion-resistant sealant seals the gap between the cable and the first gold-plated outer cylinder; The rear outer wall of the second gold-plated outer cylinder is a threaded outer wall, the second wiring portion is connected to a cable, the cable passes through the rear port of the second gold-plated outer cylinder and extends outward, and the second gold-plated outer cylinder and the cable are filled with corrosion-resistant sealant, and the corrosion-resistant sealant seals the gap between the cable and the second gold-plated outer cylinder; The corrosion-resistant sealant comprises an anti-corrosion barrier layer, a flexible waterproof filling layer, a high-strength adhesion layer and an anti-corrosion reinforcement layer, wherein the anti-corrosion barrier layer, the flexible waterproof filling layer, the high-strength adhesion layer and the anti-corrosion reinforcement layer are sequentially combined from the outside to the inside to form a corrosion-resistant sealant with a multi-layer composite structure; The anti-corrosion barrier layer is composed of a fluorocarbon polymer coating or a PTFE material, and has excellent chemical corrosion resistance and salt spray resistance. The thickness of the anti-corrosion barrier layer is 5-20 μm; The flexible waterproof filling layer is composed of a modified silicone material or a high elastic polyurethane mixture, fills the structural gaps, provides high flexibility and absorbs expansion and contraction caused by changes in ambient temperature and pressure. The hardness of the flexible waterproof filling layer is in the range of 30-50 Shore A and the tensile strength is 5-15 MPa; The high-strength adhesion layer is composed of nano-enhanced epoxy resin or composite adhesive, and is used to form a firm bond with the cable and the surface of the metal outer tube. The adhesion strength of the high-strength adhesion layer is not less than 2 MPa; The anti-corrosion enhancement layer is composed of a graphene nano-coating or a silver-plated copper mesh embedded in a flexible material, and is used to improve the electromagnetic shielding performance and corrosion resistance of the sealant, while enhancing its mechanical impact resistance.

[0119] The corrosion-resistant sealant with a multi-layer composite structure provides all-round corrosion protection through the synergistic effect of the anti-corrosion barrier layer, flexible waterproof filling layer, high-strength adhesion layer and anti-corrosion reinforcement layer. It is particularly suitable for marine environments with high salt spray, high humidity and strong chemical corrosion.

[0120] Through the high flexibility of the flexible waterproof filling layer, the sealant can accurately fill the gap between the cable and the gold-plated outer tube, while adapting to the expansion and contraction caused by changes in ambient temperature and pressure, ensuring long-term reliable sealing effect.

[0121] The high-strength adhesion layer forms a strong bond with the cable and the metal outer tube surface to prevent the sealant from falling off due to vibration, mechanical shock or environmental aging during long-term use, thereby ensuring the structural integrity of the cable and connector interface.

[0122] The graphene nano-coating or silver-plated copper mesh in the anti-corrosion reinforcement layer provides excellent electromagnetic shielding performance, reduces the impact of electromagnetic interference on signal transmission, and is suitable for scenarios with high requirements for signal integrity in marine equipment.

[0123] The design of the anti-corrosion reinforcement layer significantly enhances the sealant's resistance to mechanical impact, and can maintain the integrity of the sealing structure under dynamic loads and external forces, thereby extending the service life of the connector in complex application scenarios.

[0124] The anti-corrosion barrier layer uses fluorocarbon polymer coating or PTFE material, which has extremely high chemical stability and corrosion resistance. It can effectively resist the erosion of seawater, salt spray and other chemical media and reduce maintenance requirements.

[0125] The modified silicone material or highly elastic polyurethane mixture of the flexible waterproof filling layer has high flexibility and tensile resistance, and can maintain a stable sealing effect under extreme environmental conditions (such as large fluctuations in temperature and pressure).

[0126] The multi-layer structure design can evenly disperse external forces and environmental stresses, effectively avoid aging or cracking caused by stress on a single layer, and improve the durability and fatigue resistance of the sealant.

[0127] The electromagnetic shielding and anti-corrosion properties provided by the anti-corrosion reinforcement layer ensure the stability and integrity of signal transmission, which is especially important in marine equipment and communication systems.

[0128] The corrosion-resistant sealant of the composite structure reduces the maintenance requirements of the interfaces due to corrosion or aging, significantly reduces maintenance costs and improves the operating efficiency of the equipment.

[0129] The multi-layer design of the sealant adapts to the combination of various materials. It is easy to operate during the construction process and can quickly form a stable seal, which is suitable for different marine electrical connector usage scenarios.

[0130] This multi-layer composite structure corrosion-resistant sealant provides comprehensive protection between the cable and the gold-plated outer tube through a reasonable combination of functional layers, significantly enhancing the corrosion resistance, sealing and electromagnetic shielding capabilities of the connector. It is particularly suitable for complex and harsh marine environments and improves the overall reliability and service life of the connector.

[0131] The beneficial effects of the present invention are as follows: The present invention is particularly suitable for use in harsh marine environments by using materials with excellent corrosion resistance, chemical resistance and salt spray resistance (such as fluorocarbon polymer coating, PTFE, graphene, etc.). The gold plating of the metal parts of the electrical connector and the special sealing design effectively prevent the corrosion of seawater and other chemicals on the contact points, improving the long-term reliability of the connector.

[0132] In the present invention, the surface of the male terminal and the female terminal plug connector is coated with a graphene film, which significantly improves the stability and wear resistance of signal transmission. The graphene material has excellent electrical conductivity, and by providing a multi-point contact convex design, the conductivity of the connection is further improved, ensuring the stability of signal transmission of the electrical connector in long-term use.

[0133] In the present invention, the PTFE insulating layer and the flexible waterproof sealing layer (made of nano-polymer material) in the connector effectively prevent the intrusion of external environmental factors such as moisture and salt spray into the internal structure. The micro-elastic buffer layer in the plug cavity also enhances the waterproof and pressure-resistant performance of the connection, ensures the sealing performance in extreme environments, and prevents electrical failure of the electrical connector.

[0134] The present invention adds a high-strength corrosion-resistant sealant composite layer, which includes an anti-corrosion barrier layer, a flexible waterproof filling layer, a high-strength adhesion layer and an anti-corrosion reinforcement layer. It can not only absorb the expansion and contraction caused by environmental changes, but also enhance the mechanical impact performance of the connector, so that the connector can still maintain a good working condition under high vibration and high impact environments.

[0135] In the present invention, the guide groove and guide column design of the plug-in part make the plug-in process more accurate and avoid improper plug-in. With the design of the elastic component (memory alloy spring and elastic pick), the guide column can be smoothly inserted and automatically locked, which improves the stability and safety of the plug-in process. In addition, the user can easily unlock the guide column through the grip, which is convenient for disassembly and reconnection of the connector.

[0136] The invention combines the outer sleeve, the blocking ring and the spring sheet, not only providing a sliding connection of the connector during installation, but also ensuring the stability and firmness of the connector after installation. In addition, the gripping portion with a non-slip texture facilitates manual operation by the user, thus improving the user experience.

[0137] In the present invention, the design of the signal shielding layer (silver-plated copper foil or graphene coating) effectively shields electromagnetic interference (EMI), ensures the signal quality and safety of the equipment in a high electromagnetic environment, and reduces the influence of external noise on signal transmission.

[0138] In summary, this innovative design improves the durability, signal transmission performance and sealing of electrical connectors in marine environments through material selection, structural optimization and process improvement, ensuring its high efficiency and stable performance under extreme working conditions. It has broad application prospects and is particularly suitable for high-demand fields such as ocean, aerospace, and military. BRIEF DESCRIPTION OF THE DRAWINGS

[0139] Figure 1 Schematic diagram of the female connector.

[0140] Figure 2 This is a schematic diagram of the female connector from another angle.

[0141] Figure 3 This is the front view of the female connector.

[0142] Figure 4 This is the right side view of the female connector.

[0143] Figure 5 This is the assembly drawing of the female connector.

[0144] Figure 6 Schematic diagram of the second gold-plated outer cylinder of the female connector.

[0145] Figure 7 Schematic diagram of the male connector.

[0146] Figure 8 This is a schematic diagram of the male connector from another angle.

[0147] Fig. 9 This is the front view of the male connector.

[0148] Fig.10 This is the right side view of the male connector.

[0149] Fig.11 This is the assembly drawing of the male connector.

[0150] Fig.12 Schematic diagram of the first gold-plated outer cylinder of the male connector.

[0151] Fig.13 Prepare a schematic diagram for connecting the male and female connectors together.

[0152] Fig.14 A cross-sectional view of the connection between the male connector and the female connector.

[0153] Fig.15 It is the assembly diagram of male terminal and female terminal.

[0154] Fig.16 A schematic diagram of a male terminal and a female terminal plugged together.

[0155] Fig.17 A schematic diagram of a guide column in a guide groove being blocked by an elastic component. DETAILED DESCRIPTION

[0156] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Example, combined with Figures 1 to 17 As shown, a marine environment resistant electrical connector includes a male connector 1 and a female connector, the male connector 1 includes a first gold-plated outer cylinder 2 and a first inner core 3, the inner wall of the first gold-plated outer cylinder 2 is provided with at least one layer of PTFE insulation layer 21, the first inner core 3 includes a male terminal 31, a first PTFE insulator 32, a first crimping sleeve 33 and a first heat shrink sleeve 34, the front end of the male terminal 31 is a plug connector 311, the rear end of the male terminal 31 is a first wiring portion for connecting a cable, the male terminal 31 is placed in the first crimping sleeve 33, the first PTFE insulator 32 is placed in the first crimping sleeve 33 and is located between the inner wall of the first crimping sleeve 33 and the male terminal 31, and the first heat shrink sleeve 34 is sleeved in the first crimping sleeve 33 to form the first inner core 3; The first inner core 3 is placed in the first gold-plated outer cylinder 2, the PTFE insulating layer 21 is in close contact with the first inner core 3, the plug connector 311 faces the front port of the first gold-plated outer cylinder 2, and the first wiring portion faces the rear port of the first gold-plated outer cylinder 2; The female connection seat 4 includes a second gold-plated outer cylinder 5, a second inner core 6 and a sealing component 7. The inner wall of the second gold-plated outer cylinder 5 is provided with at least one PTFE insulation layer 21. The second inner core 6 includes a female terminal 61, a second PTFE insulator 62, a second crimping sleeve 63 and a second heat shrink sleeve 64. The front end of the female terminal 61 is a plug socket 611, and the rear end of the female terminal 61 is a second wiring portion for connecting a cable. The female terminal 61 is placed in the second crimping sleeve 63. The second PTFE insulator 62 is placed in the second crimping sleeve 63 and is located between the inner wall of the second crimping sleeve 63 and the male terminal 31. The second heat shrink sleeve 64 is sleeved in the second crimping sleeve 63 to form the second inner core 6. The second inner core 6 is placed in the second gold-plated outer cylinder 5, the PTFE insulating layer 21 is in close contact with the second inner core 6, the socket 611 faces the front port of the second gold-plated outer cylinder 5, and the second wiring portion faces the rear port of the second gold-plated outer cylinder 5; The sealing component 7 includes a locking nut 71, a toothed washer 72 and a rubber ring 73, wherein the toothed washer 72 and the rubber ring 73 are sequentially arranged at the front end of the second gold-plated outer cylinder 5, and the locking nut 71 is sleeved on the toothed washer 72 and the rubber ring 73 and locks the second gold-plated outer cylinder 5, so that the toothed washer 72 and the rubber ring 73 are fixed at the front end of the second gold-plated outer cylinder 5; The front end of the second gold-plated outer cylinder 5 of the female connector 4 is inserted into the front port inner cavity of the first gold-plated outer cylinder 2 of the male connector 1 until the plug connector 311 of the male terminal 31 is inserted into the plug socket 611 of the female terminal 61, and the rubber ring 73 is tightly attached to the inner wall of the first gold-plated outer cylinder 2, and the PTFE insulating layer 21 of the inner cavity of the first gold-plated outer cylinder 2 is tightly attached to the second gold-plated outer cylinder 5, so as to realize the sealed connection between the female connector and the male connector.

[0157] Furthermore, the inner walls of the male terminal 31 plug connector 311 and the female terminal 61 plug socket 611 are coated with a gold-plated film for improving signal transmission performance; The surface of the plug connector 311 of the male terminal 31 is provided with protrusions 3111 with multiple contacts arranged at intervals, and the inner wall of the plug socket 611 of the female terminal 61 is provided with grooves 6111 matching the protrusions 3111; The surface of the protrusion 3111 is plated with highly conductive and corrosion-resistant material, and the interior of the female terminal 61 connector socket 611 is provided with symmetrically distributed flexible contact clips 6112 made of memory alloy, and the flexible contact clips 6112 elastically clamp the connector 311 of the male terminal 31 to ensure stable signal transmission.

[0158] Furthermore, the male connector 1 also includes an outer sleeve 11 and a spring 12. A blocking ring 22 is provided on the outer wall of the first gold-plated outer sleeve 2. The outer sleeve 11 is sleeved on the first gold-plated outer sleeve 2. The outer sleeve 11 and the first gold-plated outer cylinder 2 are slidably connected. The blocking ring 22 is located in the inner cavity of the outer sleeve 11. The spring 12 is placed between the outer sleeve 11 and the blocking ring 22. One end of the spring 12 abuts against the inner wall of the outer sleeve 11, and the other end of the spring 12 abuts against the blocking ring 22. The elastic force of the spring 12 maintains pushing the first gold-plated outer cylinder 2.

[0159] Furthermore, the outer wall of the first gold-plated outer cylinder 2 and the outer wall of the second gold-plated outer cylinder 5 are both provided with a signal shielding layer 10, and the signal shielding layer 10 is made of silver-plated copper foil or graphene coating, and the thickness of the shielding layer is 10-30um. The outer layer of the signal shielding layer 10 is also covered with a corrosion-resistant fluorocarbon polymer coating 101, which is used to enhance the corrosion resistance and form a continuous shielding loop.

[0160] Furthermore, the cavity of the first gold-plated outer tube 2 located in front of the plug connector 311 of the male terminal 31 forms a plug-in cavity 312, and a flexible waterproof sealing layer 3122 made of nano-polymer material is provided on the inner wall of the plug-in cavity 312, and a micro-elastic buffer layer 3123 made of high-pressure resistant polymer elastic material and having slight deformation ability is also provided between the inner wall of the plug-in cavity 312 and the flexible waterproof sealing layer 3122.

[0161] Furthermore, a guide groove 313 is formed on the outer wall of the plug-in cavity 312, and a second gold-plated outer cylinder 5 located outside the plug-in socket 611 of the female connector 4 forms a plug-in portion 51, and guide columns 511 are arranged at intervals on the outer wall of the plug-in portion 51; The guide post 511 is first inserted into the front port of the guide groove 313, and then the plug-in portion 51 is moved so that the guide post 511 slides to the rear port of the guide groove 313, causing the plug-in portion 51 to be fully inserted into the plug-in cavity 312. At this time, the plug connector 311 of the male terminal 31 is inserted into the plug socket 611 of the female terminal 61, thereby realizing a sealed connection between the female connector and the male connector.

[0162] Furthermore, the guide column 511 is a gold-plated guide column 511, the guide groove 313 is an "L"-shaped guide groove 313, an outer ring body 314 is provided at the entrance of the plug-in cavity 312, the inner cavity of the outer ring body 314 is connected to the entrance of the plug-in cavity 312, and a guide groove opening 3141 is opened in the inner cavity of the outer ring body 314 corresponding to the front end of the guide groove 313, and the guide groove opening 3141 is connected to the front end of the guide groove 313.

[0163] Furthermore, it also includes an elastic component 20, the elastic component 20 includes a memory alloy spring 201 resistant to marine environment and an elastic paddle 202, the memory alloy spring 201 is arranged on one inner wall of the guide groove 313, the elastic paddle 202 is inclined from the front end of the guide groove 313 to the rear end of the guide groove 313, one end of the elastic paddle 202 is connected to the memory alloy spring 201, the end of the elastic paddle 202 faces the other inner wall of the guide groove 313, the gap between the end of the elastic paddle 202 and the other inner wall of the guide groove 313 forms a through gap 203, and the through gap 203 is smaller than the diameter of the guide column 511; When the guide column 511 slides to the elastic paddle 202, the guide column 511 pushes the elastic paddle 202 to swing and causes the memory alloy spring 201 to deform, so that the size of the gap 203 increases to be larger than the diameter of the guide column 511, so that the guide column 511 passes through the gap 203 and enters the rear end of the guide groove 313. When the guide column 511 enters the rear end of the guide groove 313, the elastic paddle 202 is reset under the action of the memory alloy spring 201, and the elastic paddle 202 locks the position of the guide column 511 at the rear end of the guide groove 313.

[0164] Furthermore, a gripping portion 204 is provided on the outer side of the elastic paddle 202 to facilitate the user to swing the paddle to release the lock on the guide column 511 , and a surface of the gripping portion 204 is provided with an anti-slip texture.

[0165] Furthermore, the rear outer wall of the first gold-plated outer cylinder 2 is a threaded outer wall, the first wiring portion is connected to a cable 30, the cable 30 passes through the rear port of the first gold-plated outer cylinder 2 and extends outward, and a corrosion-resistant sealant 301 is filled between the first gold-plated outer cylinder 2 and the cable 30, and the corrosion-resistant sealant 301 seals the gap between the cable 30 and the first gold-plated outer cylinder 2; The rear outer wall of the second gold-plated outer cylinder 5 is a threaded outer wall, the second wiring portion is connected to a cable 30, the cable 30 passes through the rear port of the second gold-plated outer cylinder 5 and extends outward, and a corrosion-resistant sealant 301 is filled between the second gold-plated outer cylinder 5 and the cable 30, and the corrosion-resistant sealant 301 seals the gap between the cable 30 and the second gold-plated outer cylinder 5; The corrosion-resistant sealant 301 comprises an anti-corrosion barrier layer 3011, a flexible waterproof filling layer 3012, a high-strength adhesion layer 3013 and an anti-corrosion reinforcement layer 3014, wherein the anti-corrosion barrier layer 3011, the flexible waterproof filling layer 3012, the high-strength adhesion layer 3013 and the anti-corrosion reinforcement layer 3014 are sequentially combined from outside to inside to form a corrosion-resistant sealant 301 with a multi-layer composite structure; The anti-corrosion barrier layer 3011 is made of a fluorocarbon polymer coating 101 or a PTFE material, and has excellent chemical corrosion resistance and salt spray resistance. The thickness of the anti-corrosion barrier layer 3011 is 5-20 μm; The flexible waterproof filling layer 3012 is made of a modified silicone material or a high elastic polyurethane mixture, fills the structural gaps, provides high flexibility and absorbs expansion and contraction caused by changes in ambient temperature and pressure. The hardness of the flexible waterproof filling layer 3012 is in the range of Shore A 30-50 and the tensile strength is 5-15 MPa; The high-strength adhesion layer 3013 is composed of nano-enhanced epoxy resin or composite adhesive, and is used to form a firm bond with the cable 30 and the surface of the metal outer tube. The adhesion strength of the high-strength adhesion layer 3013 is not less than 2 MPa; The anti-corrosion enhancement layer 3014 is composed of a graphene nano-coating or a silver-plated copper mesh embedded in a flexible material, and is used to improve the electromagnetic shielding performance and corrosion resistance of the sealant, while enhancing its mechanical impact resistance.

[0166] Method for plugging male connector 1 and female connector 4 1. Prepare for plugging Check the connector parts: Make sure that the plugs and sockets of the male connector 1 and female connector 4 are clean and free of dirt, rust or other obstacles that may affect the connection.

[0167] Check the sealing components: ensure that the sealing components of the male connector and the female connector (such as the rubber ring 73, the spring 12, etc.) are in good condition and are not damaged or aged.

[0168] 2. Align the plug-in components Align the plug-in components: align the front end (plug-in socket 611 ) of the second gold-plated outer tube 5 of the female connector 4 with the front end (plug-in cavity 312 ) of the first gold-plated outer tube 2 of the male connector 1 .

[0169] Guide post and guide groove guidance: Ensure that the guide post 511 of the female connector 4 is first inserted into the front end of the guide groove 313 of the male connector 1. At this time, the guide post 511 will slide along the guide groove 313, gradually guiding the female connector 4 to advance into the insertion cavity 312.

[0170] 3. Docking and locking Insert into the plug-in cavity: After alignment, gently push the female connector 4 so that its plug-in portion 51 is guided by the guide groove 313 , and the guide column 511 finally slides to the rear end of the guide groove 313 .

[0171] Insertion of the plug connector into the socket: As the female connector is further advanced, the plug connector 311 of the male terminal 31 will be inserted into the socket 611 of the female terminal 61. At this time, the male terminal 31 and the female terminal 61 are in electrical contact through the flexible contact clip 6112.

[0172] Locking connection: Once the plug part 51 is fully inserted into the plug cavity 312, the connector is automatically locked. The elastic paddle 202 is reset under the action of the memory alloy spring 201, locking the guide column 511 at the rear end of the guide groove 313, thereby ensuring a firm connection between the plug connector 311 and the socket 611.

[0173] 4. Sealed connection Sealing assembly works: With the completion of the plugging, the rubber ring 73 clings to the inner wall of the first gold-plated outer cylinder 2 to form a seal to prevent moisture or other external contaminants from entering the connection. At the same time, the PTFE insulating layer 21 ensures the insulation and corrosion resistance between the second gold-plated outer cylinder 5 of the female connector 4 and the first gold-plated outer cylinder 2 of the male connector 1.

[0174] Waterproof sealing: The flexible waterproof sealing layer 3122 and the micro-elastic buffer layer 3123 on the inner wall of the plug-in cavity 312 work together to effectively prevent moisture from penetrating, further improving the waterproofness and high-pressure resistance of the connection.

[0175] 5. Signal and shielding protection Signal transmission stability: The graphene film coated on the inner wall of the plug connector 311 and the plug socket 611 enhances the performance of signal transmission and improves wear resistance. The mutual cooperation between the protrusion 3111 and the groove 6111 further increases the contact stability and ensures the reliability of signal transmission.

[0176] Electromagnetic shielding: The signal shielding layer 10 of the first gold-plated outer tube 2 and the second gold-plated outer tube 5 effectively prevents external electromagnetic interference and forms a complete shielding loop to maintain clear signal transmission.

[0177] 6. Check and confirm the connection Check whether the connection is firm: After the plug-in is completed, check whether the male connector 1 and the female connector 4 are fully connected to ensure that the plug-in parts are not loose.

[0178] Confirm the sealing: Check whether the sealing components (such as the rubber ring 73 and the flexible waterproof sealing layer 3122) are fully compressed to ensure a good seal.

[0179] Check signal transmission: Verify that signal transmission is stable using electrical testing equipment to ensure there is no signal loss or interference.

[0180] 7. Unlock and disconnect Unlocking operation: If you need to disconnect, gently push the elastic paddle 202 through the grip 204 with anti-slip texture to unlock the guide column 511. The elastic paddle 202 releases the guide column 511 from the rear end of the guide groove 313 through the return action of the memory alloy spring 201, thereby disconnecting.

[0181] This plug-in method ensures reliable plug-in, sealing and signal transmission stability between the male connector and the female connector in the marine environment through a precisely designed structure and multiple sealing protections. It also has high corrosion resistance, wear resistance and waterproof performance, meeting high-demand electrical connection applications.

[0182] The terms first, second, etc. used in the present invention do not indicate any order, quantity or importance, but are only used for distinction.

[0183] As used in the present invention, the terms "one", "a", etc. do not indicate a limit on quantity, but indicate the existence of at least one of the mentioned objects. As used in the present invention, the terms "top", "bottom", "side", "longitudinal", "lateral", "middle", "center", "outside", "inside", "horizontal", "vertical", "left", "right", "upper", "lower", etc." indicate relative positions, not absolute positions.

[0184] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A marine environment resistant electrical connector, comprising a male connector and a female connector, characterized in that: The male connector includes a first gold-plated outer cylinder and a first inner core, the inner wall of the first gold-plated outer cylinder is provided with at least one PTFE insulation layer, the first inner core includes a male terminal, a first PTFE insulator, a first crimping sleeve and a first heat shrink sleeve, the front end of the male terminal is a plug connector, the rear end of the male terminal is a first wiring portion for connecting a cable, the male terminal is placed in the first crimping sleeve, the first PTFE insulator is placed in the first crimping sleeve and is located between the inner wall of the first crimping sleeve and the male terminal, and the first heat shrink sleeve is sleeved in the first crimping sleeve to form the first inner core; The first inner core is placed in the first gold-plated outer cylinder, the PTFE insulating layer is in close contact with the first inner core, the plug connector faces the front port of the first gold-plated outer cylinder, and the first wiring portion faces the rear port of the first gold-plated outer cylinder; The female connection seat comprises a second gold-plated outer cylinder, a second inner core and a sealing component, the inner wall of the second gold-plated outer cylinder is provided with at least one PTFE insulation layer, the second inner core comprises a female terminal, a second PTFE insulator, a second crimping sleeve and a second heat shrink sleeve, the front end of the female terminal is a plug socket, the rear end of the female terminal is a second wiring portion for connecting a cable, the female terminal is placed in the second crimping sleeve, the second PTFE insulator is placed in the second crimping sleeve and is located between the inner wall of the second crimping sleeve and the male terminal, and the second heat shrink sleeve is sleeved in the second crimping sleeve to form the second inner core; The second inner core is placed in the second gold-plated outer cylinder, the PTFE insulating layer is in close contact with the second inner core, the socket faces the front port of the second gold-plated outer cylinder, and the second wiring portion faces the rear port of the second gold-plated outer cylinder; The sealing component comprises a locking nut, a toothed washer and a rubber ring, wherein the toothed washer and the rubber ring are sequentially arranged at the front end of the second gold-plated outer cylinder, and the locking nut is sleeved on the toothed washer and the rubber ring and locks the second gold-plated outer cylinder, so that the toothed washer and the rubber ring are fixed at the front end of the second gold-plated outer cylinder; The front end of the second gold-plated outer cylinder of the female connector is inserted into the inner cavity of the front port of the first gold-plated outer cylinder of the male connector until the plug connector of the male terminal is inserted into the plug socket of the female terminal. The rubber ring is tightly attached to the inner wall of the first gold-plated outer cylinder, and the PTFE insulating layer of the inner cavity of the first gold-plated outer cylinder is tightly attached to the second gold-plated outer cylinder, so as to realize the sealed connection between the female connector and the male connector.

2. The marine environment resistant electrical connector according to claim 1, characterized in that: The inner wall of the male terminal plug connector and the female terminal plug socket is coated with a gold-plated film for improving signal transmission performance; The plug connector surface of the male terminal is provided with protrusions with multiple contact points at intervals, and the inner wall of the plug socket of the female terminal is provided with grooves matching the protrusions; The raised surface is plated with highly conductive and corrosion-resistant material, and the female terminal socket is internally provided with symmetrically distributed flexible contact clips made of memory alloy, which elastically clamp the male terminal connector to ensure stable signal transmission.

3. The marine environment resistant electrical connector according to claim 1, characterized in that: The male connector also includes an outer sleeve and a spring. A blocking ring is provided on the outer wall of the first gold-plated outer sleeve. The outer sleeve is sleeved on the first gold-plated outer sleeve. The outer sleeve and the first gold-plated outer sleeve are slidably connected. The blocking ring is located in the inner cavity of the outer sleeve. The spring is placed between the outer sleeve and the blocking ring. One end of the spring abuts against the inner wall of the outer sleeve, and the other end of the spring abuts against the blocking ring. The elastic force of the spring maintains the pushing of the first gold-plated outer sleeve.

4. The marine environment resistant electrical connector according to claim 1, characterized in that: The outer wall of the first gold-plated outer cylinder and the outer wall of the second gold-plated outer cylinder are both provided with a signal shielding layer, the signal shielding layer is made of silver-plated copper foil or graphene coating, the thickness of the shielding layer is 10-30um, and the outer layer of the signal shielding layer is also covered with a corrosion-resistant fluorocarbon polymer coating to enhance the corrosion resistance and form a continuous shielding loop.

5. The marine environment resistant electrical connector according to claim 1, characterized in that: The first gold-plated outer cylinder is located in the cavity in front of the plug connector of the male terminal to form a plug-in cavity, and a flexible waterproof sealing layer made of nano-polymer material is arranged on the inner wall of the plug-in cavity. A micro-elastic buffer layer made of high-pressure resistant polymer elastic material and having slight deformation ability is also arranged between the inner wall of the plug-in cavity and the flexible waterproof sealing layer.

6. The marine environment resistant electrical connector according to claim 5, characterized in that: The outer wall of the plug-in cavity is provided with a guide groove. A second gold-plated outer cylinder located at the periphery of the plug socket of the female connector forms a plug-in portion, and guide pillars are arranged at intervals on the outer wall of the plug-in portion; The guide post is first inserted into the front port of the guide groove, and then the plug-in part is moved to make the guide post slide to the rear port of the guide groove, causing the plug-in part to be fully inserted into the plug-in cavity. At this time, the plug connector of the male terminal is inserted into the plug socket of the female terminal, thereby realizing a sealed connection between the female connector and the male connector.

7. The marine environment resistant electrical connector according to claim 6, characterized in that: The guide column is a gold-plated guide column, the guide groove is an "L"-shaped guide groove, an outer ring body is provided at the entrance of the plug-in cavity, the inner cavity of the outer ring body is connected to the entrance of the plug-in cavity, and a guide groove opening is opened in the inner cavity of the outer ring body corresponding to the front end of the guide groove, and the guide groove opening is connected to the front end of the guide groove.

8. The marine environment resistant electrical connector according to claim 6 or 7, characterized in that: It also includes an elastic component, the elastic component includes a memory alloy spring resistant to marine environment and an elastic pick, the memory alloy spring is arranged on an inner wall of one side of the guide groove, the elastic pick is inclined from the front end of the guide groove to the rear end of the guide groove, one end of the elastic pick is connected to the memory alloy spring, the end of the elastic pick faces the other inner wall of the guide groove, the gap between the end of the elastic pick and the other inner wall of the guide groove forms a passing gap, and the passing gap is smaller than the diameter of the guide column; When the guide column slides to the elastic paddle, the guide column pushes the elastic paddle to swing and causes the memory alloy spring to deform, so that the size of the through gap increases to be larger than the diameter of the guide column, so that the guide column passes through the through gap and enters the rear port of the guide groove. When the guide column enters the rear port of the guide groove, the elastic paddle is reset under the action of the memory alloy spring, and the elastic paddle locks the position of the guide column at the rear port of the guide groove.

9. The marine environment resistant electrical connector according to claim 8, characterized in that: The outer side of the elastic paddle is provided with a gripping portion which is convenient for the user to swing the paddle to release the lock on the guide column, and the surface of the gripping portion is provided with an anti-slip texture.

10. The marine environment resistant electrical connector according to claim 1, characterized in that: The rear outer wall of the first gold-plated outer cylinder is a threaded outer wall, the first wiring portion is connected to a cable, the cable passes through the rear port of the first gold-plated outer cylinder and extends outward, and a corrosion-resistant sealant is filled between the first gold-plated outer cylinder and the cable, and the corrosion-resistant sealant seals the gap between the cable and the first gold-plated outer cylinder; The rear outer wall of the second gold-plated outer cylinder is a threaded outer wall, the second wiring portion is connected to a cable, the cable passes through the rear port of the second gold-plated outer cylinder and extends outward, and the second gold-plated outer cylinder and the cable are filled with corrosion-resistant sealant, and the corrosion-resistant sealant seals the gap between the cable and the second gold-plated outer cylinder; The corrosion-resistant sealant comprises an anti-corrosion barrier layer, a flexible waterproof filling layer, a high-strength adhesion layer and an anti-corrosion reinforcement layer, wherein the anti-corrosion barrier layer, the flexible waterproof filling layer, the high-strength adhesion layer and the anti-corrosion reinforcement layer are sequentially combined from the outside to the inside to form a corrosion-resistant sealant with a multi-layer composite structure; The anti-corrosion barrier layer is composed of a fluorocarbon polymer coating or a PTFE material, and has excellent chemical corrosion resistance and salt spray resistance. The thickness of the anti-corrosion barrier layer is 5-20 μm; The flexible waterproof filling layer is composed of a modified silicone material or a high elastic polyurethane mixture, fills the structural gaps, provides high flexibility and absorbs expansion and contraction caused by changes in ambient temperature and pressure. The hardness of the flexible waterproof filling layer is in the range of 30-50 Shore A and the tensile strength is 5-15 MPa; The high-strength adhesion layer is composed of nano-enhanced epoxy resin or composite adhesive, and is used to form a firm bond with the cable and the surface of the metal outer tube. The adhesion strength of the high-strength adhesion layer is not less than 2 MPa; The anti-corrosion enhancement layer is composed of a graphene nano-coating or a silver-plated copper mesh embedded in a flexible material, and is used to improve the electromagnetic shielding performance and corrosion resistance of the sealant, while enhancing its mechanical impact resistance.

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