Marine environment resistant electrical connector

Abstract

The present invention relates to the field of cable installation, and particularly to a marine environment-resistant electrical connector, which includes a male connector base and a female connector base. The male connector base includes a first gold-plated outer cylinder and a first inner core. At least one layer of PTFE insulation layer is provided on the inner wall of the first gold-plated outer cylinder. The first inner core includes 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 plug connector, and the rear end of the male terminal is a first wiring portion for connecting a cable. The male terminal is placed inside the first crimping sleeve. The first PTFE insulator is placed inside the first crimping sleeve and is located between the inner wall of the first crimping sleeve and the male terminal. The first heat-shrinkable sleeve is sleeved inside the first crimping sleeve to form the first inner core. Through reasonable material selection and structural design, it has significant advantages in terms of corrosion resistance, sealing performance, electrical insulation performance, and signal transmission stability, and can operate reliably in the marine environment for a long time.

Description

Technical Field

[0001] The present invention relates to the field of cable installation, and particularly to a marine environment-resistant electrical connector. Background Art

[0002] With the continuous and in-depth development of global exploitation and utilization of marine resources, deep-sea engineering technology has gradually become an important field in the development of the marine industry. In this context, as an important component for realizing efficient transmission of deep-sea signals and electrical energy, the performance of marine environment-resistant electrical connectors is directly related to the success or failure of marine engineering. However, due to the special complexity of the deep-sea environment, strict requirements are imposed on the service performance of electrical connectors.

[0003] The challenges of the deep-sea environment mainly include:

[0004] High pressure and watertightness requirements: The water pressure in the deep sea can reach several megapascals. Any slight seal failure may cause water ingress into the equipment and damage it, thus interrupting signal or electrical energy transmission.

[0005] Corrosive environment: The deep-sea environment is filled with high-concentration salt mist, moisture, and various corrosive ions, which have a strong corrosive effect on both metal and non-metal materials.

[0006] Complex temperature variations: The temperature difference in different sea areas is large, and the equipment needs to withstand long-term ultraviolet radiation, high-moisture erosion, and mechanical stress in a low-temperature environment.

[0007] Vibration and mechanical loss: Deep-sea operation equipment often needs to withstand strong water flow impact and vibration, which easily leads to loosening or poor contact of the connector.

[0008] Existing products still have deficiencies in terms of sealing performance, corrosion resistance, and connection reliability. For example:

[0009] Watertightness failure: The sealing material of existing connectors is prone to aging after long-term use, resulting in water ingress into the equipment.

[0010] Unstable contact performance: Deep-sea vibration and water flow effects easily cause loosening or oxidation of contact points, reducing the signal transmission quality.

[0011] Insufficient material corrosion resistance: The metal part is prone to failure due to salt mist erosion, and non-metal materials are also prone to deformation or deterioration in a long-term high-pressure environment.

[0012] Based on the above problems, it has become an urgent need to design a marine environment-resistant electrical connector with excellent corrosion resistance and stable sealing performance. By optimizing aspects such as structural design, material selection, and coating technology, the service life and transmission stability of the connector in the complex deep-sea environment can be significantly improved.

[0013] 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

[0014] 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.

[0015] The object of the present invention is achieved in that:

[0016] 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;

[0017] 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;

[0018] 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;

[0019] 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;

[0020] The sealing component includes a lock nut, a serrated washer, and a rubber ring. The serrated washer and the rubber ring are sequentially arranged at the front port of the second gold-plated outer cylinder. The lock nut is sleeved on the serrated washer and the rubber ring and locks the second gold-plated outer cylinder, so that the serrated washer and the rubber ring are fixed at the front port of the second gold-plated outer cylinder;

[0021] The front end of the second gold-plated outer cylinder of the female connector seat is inserted into the inner cavity of the front port of the first gold-plated outer cylinder of the male connector seat until the plug of the male terminal is inserted into the socket of the female terminal. The rubber ring is closely attached to the inner wall of the first gold-plated outer cylinder, and the PTFE insulating layer in the inner cavity of the first gold-plated outer cylinder is closely attached to the second gold-plated outer cylinder, realizing the sealed connection between the female connector and the male connector.

[0022] Both the male connector seat and the female connector seat adopt gold-plated outer cylinders, significantly improving the ability of the connector to resist the erosion of corrosive salt spray and moisture in the marine environment and extending the service life.

[0023] The PTFE insulating layer on the inner wall of the gold-plated outer cylinder provides excellent electrical insulation performance, avoiding electrical short circuits, and is also resistant to high temperatures and aging, ensuring stable operation in the marine environment with high humidity and high salt content.

[0024] The combination of the sealing component (including the lock nut, the serrated washer, and the rubber ring) and the plugging structure ensures reliable watertight and airtight closure of the connector after plugging, preventing seawater or moist air from entering the interior of the connector.

[0025] The plug of the male terminal and the socket of the female terminal are precisely matched in structure, ensuring the stability of plugging and efficient signal transmission.

[0026] The PTFE insulating layer between the first gold-plated outer cylinder and the second gold-plated outer cylinder is closely attached, forming an additional physical barrier and further enhancing the sealing effect.

[0027] The male connector seat and the female connector seat are designed with a docking structure that is easy to plug, making installation and disassembly simpler and more convenient, while reducing the risk of damage caused by manual operation.

[0028] The plugging structure ensures stable electrical contact between the male terminal and the female terminal, providing a low contact resistance and improving signal transmission stability. Even when operating in the marine environment for a long time, high-performance transmission can be maintained.

[0029] The overall design meets the requirements of the marine environment and can operate stably in extreme temperature, pressure, high humidity, high salt and other environments, and is suitable for marine exploration, deep-sea communication and other fields.

[0030] Through reasonable material selection (such as gold-plated outer cylinder and PTFE insulation layer) and structural design (such as sealing components and plug-and-socket docking structure), it has significant advantages in corrosion resistance, sealing performance, electrical insulation performance, and signal transmission stability, and is a design solution for electrical connectors that can operate reliably in the marine environment for a long time.

[0031] The object of the present invention can also be solved by the following technical measures:

[0032] Furthermore, the inner walls of the plug joints of the male terminals and the socket joints of the female terminals are coated with a gold-plated film for improving signal transmission performance;

[0033] The surface of the plug joint of the male terminal is provided with protrusions for multi-point contact at intervals, and the inner wall of the socket joint of the female terminal is provided with grooves matching the protrusions;

[0034] The surface of the protrusions is plated with a highly conductive anti-corrosion material, and symmetrically distributed flexible contact clips made of shape memory alloy are installed inside the socket joint of the female terminal. The flexible contact clips elastically clamp the plug joint of the male terminal to ensure stable signal transmission.

[0035] The gold-plated film has good electrical conductivity, can effectively reduce the contact resistance of the connector, and ensure more stable and efficient signal transmission. Compared with graphene, the electrical conductivity and stability of the gold-plated film perform well in both low-frequency and high-frequency signal transmissions, and are especially suitable for occasions with high requirements for electrical connection.

[0036] The gold-plated film has strong anti-corrosion performance, can effectively prevent the erosion of seawater, moisture, salt spray, and other corrosive substances on the contact surface. The metal coating has excellent salt spray resistance performance and is especially suitable for use in harsh conditions such as the marine environment. This anti-corrosion performance helps to maintain the long-term stable operation of the electrical connector and avoid performance degradation or failure caused by corrosion.

[0037] The gold-plated layer has high hardness and low friction coefficient, 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 during high-frequency signal transmission, the surface of the gold layer is relatively smooth, which can reduce the friction between the plug joint and the socket joint and avoid signal interference.

[0038] While providing excellent electrical conductivity, the gold-plated film also helps to ensure stable signal transmission and reduce signal fluctuations or losses caused by poor contact. Due to the good contact performance of the gold-plated surface, even after long-term use, the electrical contact of the plugging part can still maintain a low resistance, avoiding signal quality degradation.

[0039] 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.

[0040] The production process of gold-plated thin films is relatively mature and the cost is relatively low. Gold-plated thin films are widely used and have good processability and controllability, enabling stability and consistency in large-scale production.

[0041] Gold-plated thin films are widely used in various electrical connectors, electronic components and high-precision equipment. Their superior electrical properties and durability enable them to play a role in various electrical connectors, especially suitable for fields that require long-term reliable operation, such as marine, military, aerospace and other environments.

[0042] Gold-plated thin films can effectively improve signal transmission performance, and at the same time have good corrosion resistance, low contact resistance, higher wear resistance and more stable signal transmission performance, and have a more mature and economical production process. Therefore, using gold-plated thin films in marine environment electrical connectors is still a very effective and practical choice.

[0043] The plug joint of the male terminal is provided with multi-point contact protrusions, which form a multi-point contact structure with the grooves matching the inner wall of the female terminal socket, significantly increasing the contact area and the number of contact points, thereby enhancing the connection stability and electrical conductivity and reducing the contact resistance.

[0044] The multi-point contact design with concave-convex fit ensures that the electrical connection remains stable under high vibration or drastic environmental changes, effectively preventing signal loss or transmission interruption, and is particularly suitable for application scenarios such as wave impact or equipment shaking in the marine environment.

[0045] The surface of the protrusion is plated with a highly conductive anti-corrosion material, delaying the damage of corrosive environments such as marine salt spray to the contact surface, ensuring that the contact performance is not affected during long-term use, and at the same time reducing the maintenance cost.

[0046] The shape memory alloy flexible contact clip inside the female terminal socket has self-adaptive elastic ability, which can automatically adjust and clamp according to the shape of the plug joint, ensuring uniform contact and further improving the reliability of the electrical connection.

[0047] The shape memory alloy material has anti-fatigue, anti-corrosion and long-term deformation recovery ability. The flexible contact clip is not easily worn or its performance decays during plugging and unplugging operations, greatly improving the overall durability and service life of the connector.

[0048] The multi-point contact structure reduces the dependence of the connection quality on a single contact point. Even if some contact points are contaminated or slightly oxidized, the remaining contact points can still ensure good signal transmission.

[0049] The flexible contact clip provides appropriate clamping force, does not excessively increase the plugging and unplugging force, ensures that users can operate easily, and at the same time reduces the loss of the connector structure caused by frequent plugging and unplugging.

[0050] Through the combination of multi-point contact protrusions and flexible contact clips, the design significantly improves the signal transmission stability, corrosion resistance, and service life of the connector, making it particularly suitable for applications in harsh marine environments such as high humidity, high salinity, and high vibration. This innovative design not only enhances the electrical performance but also takes into account the operational convenience and structural durability, being a high-performance connector optimization solution.

[0051] Furthermore, the male connector base further includes an outer sleeve and a spring piece. A blocking ring is provided on the outer wall of the first gold-plated outer cylinder. The outer sleeve is sleeved on the first gold-plated outer cylinder, and the outer sleeve and the first gold-plated outer cylinder are slidably connected. The blocking ring is located inside the inner cavity of the outer sleeve. The spring piece is placed between the outer sleeve and the blocking ring. One end of the spring piece abuts against the inner wall of the outer sleeve, and the other end of the spring piece abuts against the blocking ring. The elastic force of the spring piece maintains the push of the first gold-plated outer cylinder.

[0052] Through the elastic force of the spring piece, the first gold-plated outer cylinder is pushed to always maintain an appropriate forward pressure, making the contact between the male connector base and the female connector base closer, reducing connection looseness caused by external vibration or environmental factors, and ensuring the stable performance of the connector.

[0053] The elastic force provided by the spring piece plays a buffering role, capable of absorbing external impact forces, reducing the direct impact on the internal connection structure, and improving the impact and vibration resistance of the connector in harsh marine environments.

[0054] The setting of the spring piece reduces the wear generated during the connection process due to direct contact, protects the first gold-plated outer cylinder and its sliding components with the outer sleeve, and improves the overall durability of the male connector base.

[0055] The sliding connection between the outer sleeve and the first gold-plated outer cylinder forms a continuous sealing pressure under the push of the spring piece, effectively improving the waterproof performance of the connector and adapting to extreme conditions such as high humidity and high salt fog in the marine environment.

[0056] The spring piece pushing structure allows the first gold-plated outer cylinder to have a certain self-adaptive adjustment ability during the docking process, enabling the male and female connector bases to dock more quickly and accurately, improving the connection efficiency, and reducing the requirement for operation accuracy.

[0057] The sliding design of the outer sleeve and the first gold-plated outer cylinder makes it easier for users to disassemble and assemble the connector. With the reset function of the spring piece, the steps of connection and separation operations are simplified, saving time.

[0058] The spring piece is made of an elastic material, and its acting force is evenly distributed, capable of maintaining stable performance during multiple compression and release cycles, effectively extending the anti-fatigue life of the connector and meeting the needs of long-term frequent use.

[0059] The elastic force of the elastic piece ensures that the first gold-plated outer cylinder can maintain an appropriate pre-tightening force under dynamic loads, avoiding unstable connections caused by external pressure changes, and is particularly suitable for application scenarios of marine equipment such as ships and buoys.

[0060] The blocking ring provides a positioning reference for the elastic piece, enabling the elastic piece to act precisely between the outer sleeve and the first gold-plated outer cylinder, avoiding failure caused by the position offset of the elastic piece, and improving the overall stability of the sealing and connection system.

[0061] The structural designs of the outer sleeve, the elastic piece, and the blocking ring are independent and modular, facilitating maintenance or replacement during use, reducing maintenance costs, and improving the sustainability of the connector.

[0062] Through the coordinated action of the outer sleeve, the blocking ring, and the elastic piece, this design provides continuous connection pressure, stable sealing effect, and good shock resistance for the male connector seat, while achieving convenient disassembly and assembly functions and low maintenance requirements. Especially in the marine environment, it can significantly improve the reliability, durability, and adaptability of the connector.

[0063] Furthermore, signal shielding layers are provided on the outer walls of both the first gold-plated outer cylinder and the second gold-plated outer cylinder. The signal shielding layer is made of silver-plated copper foil or graphene coating. The thickness of the shielding layer is 10 - 30 um, 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.

[0064] 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.

[0065] 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 requirements for signal quality in modern communication and data transmission.

[0066] The fluorocarbon polymer coating covering the outer layer has excellent chemical corrosion resistance and salt spray resistance, which can effectively protect the shielding layer material from salts, moisture, and corrosive substances in the marine environment, and extend the service life of the connector.

[0067] The fluorocarbon polymer coating has good weather resistance and ultraviolet resistance, which can slow down the oxidation and aging speed of the shielding layer material, and maintain long-term electromagnetic shielding effectiveness and mechanical strength.

[0068] As a lightweight material, the graphene coating significantly reduces the overall weight of the shielding layer, reduces the weight of the connector while ensuring shielding performance, and is suitable for weight-sensitive application scenarios (such as marine or aviation equipment).

[0069] 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.

[0070] The shielding layer thickness design of 10 - 30 μm provides sufficient mechanical strength and durability while taking into account the electrical conductivity, ensuring the consistency of the shielding effect during long-term use.

[0071] This multi-layer shielding structure is particularly suitable for use in marine environments with high salt spray, high humidity, and corrosive chemical substances, meeting the high requirements for connector performance in harsh environments.

[0072] By setting a signal shielding layer on the outer walls of the first and second gold-plated outer cylinders and further covering it with a corrosion-resistant fluorocarbon polymer coating, combined with excellent electromagnetic shielding, corrosion resistance, weather resistance, and lightweight characteristics, the signal transmission stability, durability, and reliability of the connector in a marine environment have been significantly improved. This optimized design is applicable to equipment application scenarios with high performance and strong anti-interference requirements, further broadening the scope of use of the electrical connector.

[0073] Furthermore, a plugging cavity is formed in the cavity of the first gold-plated outer cylinder in front of the plug joint of the male terminal. A flexible waterproof sealing layer made of nano-polymer material is provided on the inner wall of the plugging cavity, and a micro-elastic buffer layer made of a high-pressure-resistant polymer elastic material with slight deformation ability is also provided between the inner wall of the plugging cavity and the flexible waterproof sealing layer.

[0074] The flexible waterproof sealing layer provided on the inner wall of the plugging cavity can provide reliable sealing during the plugging of the male terminal and the female terminal, preventing corrosive media such as moisture and salt spray in the marine environment from invading the interior of the connector, effectively protecting the internal electrical structure, and enhancing the waterproof performance.

[0075] The micro-elastic buffer layer is made of a high-pressure-resistant polymer elastic material and can withstand stress changes in a high-pressure environment, effectively avoiding the risk of the sealing layer failing due to excessive pressure in the deep-sea high-pressure environment and ensuring the long-term sealing performance of the connector.

[0076] The micro-elastic buffer layer has slight deformation ability, can absorb and relieve the mechanical stress during the plugging and unplugging process and the impact of external vibrations on the connector, and avoid the damage of the plugging cavity sealing layer due to mechanical stress concentration, thereby extending the service life of the connector.

[0077] The flexible waterproof sealing layer and the micro-elastic buffer layer work together to provide a double-sealing structure: the flexible sealing layer realizes primary sealing, and the buffer layer enhances the sealing stability through its elastic performance, maintaining the sealing effect even after long-term use or multiple plugging and unplugging operations.

[0078] The flexible sealing layer of the nano-polymer material has excellent corrosion resistance, anti-aging property, and chemical stability, can adapt to the corrosive salt spray and humidity in the marine environment, while maintaining excellent flexibility to avoid the hardening or failure of the sealing layer caused by environmental factors.

[0079] The micro-elastic buffer layer reduces the hard contact friction between the insertion cavity and the plug connector through its deformation ability, reduces the insertion and extraction resistance, improves the smoothness of insertion and extraction, and at the same time reduces the wear of the internal components of the connector.

[0080] The double-layer protection structure combines the excellent properties of nano-scale materials and the buffering effect of polymer elastic materials, enabling the insertion cavity to maintain a sealing effect for a long time in a complex marine environment, reducing the maintenance and replacement frequency, and improving the stability and reliability of the equipment.

[0081] Prevent salt water and corrosive substances from infiltrating into the insertion cavity, effectively avoid signal loss or short circuit caused by the corrosion of conductive components, and ensure the stable electrical performance of the connector in a harsh environment.

[0082] By setting a flexible waterproof sealing layer on the inner wall of the insertion 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 waterproof, anti-corrosion, and anti-mechanical shock capabilities of the connector in the marine environment, while optimizing the insertion and extraction performance and long-term use reliability, which is an innovative improvement for applications in harsh environments.

[0083] Furthermore, a guiding groove is opened on the outer wall of the insertion cavity, and a second gold-plated outer cylinder located around the insertion socket of the female connection seat forms an insertion part, and guiding columns are arranged at intervals on the outer wall of the insertion part;

[0084] The guiding columns first insert into the front port of the guiding groove, and then the insertion part is moved so that the guiding columns slide to the rear port of the guiding groove, causing the insertion part to be completely inserted into the insertion cavity. At this time, the plug connector of the male terminal is inserted into the insertion socket of the female terminal, thereby realizing the sealed connection between the female connector and the male connector.

[0085] The guiding groove on the outer wall of the insertion cavity cooperates with the guiding columns on the outer wall of the insertion part to guide the alignment of the female connector and the male connector during the insertion process, prevent the insertion failure or damage to the internal structure of the connector caused by misalignment, and thus ensure the smooth progress of the insertion operation.

[0086] The design of the guiding columns sliding to the guiding groove provides a stable insertion path and fixed points, avoids the phenomenon of shaking or offset during the insertion process, improves the stability of the insertion action, and reduces the wear of the connector components during the insertion and extraction process.

[0087] The gradual insertion of the guide post ensures that the insertion part fully enters the insertion cavity. At the same time, the sealing component can also be fully compressed, enabling the flexible waterproof sealing layer and the micro-elastic buffer layer to effectively function, further improving the sealing performance of the connector.

[0088] The guide groove and the guide post provide a clear limit on the insertion direction, effectively avoiding problems such as forced insertion or incorrect connection caused by user misoperation, reducing the probability of operation errors, and enhancing the reliability of equipment use.

[0089] It reduces mechanical damage to the internal structure of the connector caused by insertion offset or error. At the same time, the sliding fit of the guiding design reduces the insertion and extraction wear of the connector, helping to extend the service life of the connector.

[0090] The cooperation between the guide groove and the guide post realizes a fast and accurate alignment function. The connection operation can be completed without additional adjustment, improving the insertion and extraction efficiency, and is especially suitable for scenarios that require frequent operations.

[0091] In the marine environment, operations are usually affected by external factors such as water flow and vibration. The guiding structure can effectively reduce these interferences, ensuring reliable insertion operations even under complex conditions.

[0092] The guiding design ensures the complete fit between the insertion part and the insertion cavity, enabling the plug connector of the male terminal to accurately contact the socket of the female terminal, reducing the situations of poor contact or abnormal signal transmission, and enhancing the electrical performance of the electrical connector.

[0093] The structural design of the guide groove and the guide post is conducive to the modular and standardized production of the connector, improving the consistency and interchangeability of the product, and facilitating maintenance and replacement.

[0094] By setting a guide groove on the outer wall of the insertion cavity and a guide post on the outer wall of the insertion part, an efficient and reliable guiding insertion structure is formed. This design not only improves the insertion alignment accuracy and sealing performance but also optimizes the operation experience and long-term stability of the connector, and is especially suitable for the application scenario of electrical connectors in complex marine environments.

[0095] Furthermore, the guide post is a gold-plated guide post, the guide groove is an "L"-shaped guide groove, an outer ring body is provided at the entrance of the insertion cavity, the inner cavity of the outer ring body communicates with the entrance of the insertion cavity, and a guiding notch is opened in the inner cavity of the outer ring body corresponding to the front port of the guide groove, and the guiding notch communicates with the front port of the guide groove.

[0096] The guide post is made of gold-plated material, with excellent corrosion resistance and good mechanical strength, and can maintain the stability of the guiding function for a long time in corrosive environments such as the ocean; the design of the "L"-shaped guide groove provides a multi-step alignment function, making the insertion more accurate and reliable.

[0097] The inner cavity of the outer ring body is connected to the entrance of the insertion cavity and is connected to the front port of the guiding groove through the guiding notch, enabling the guiding column to smoothly transition when entering the insertion slot, reducing jamming caused by insertion errors or uneven operating forces, and improving the smoothness of insertion.

[0098] The L-shaped guiding groove defines the sliding path of the insertion column, restricts the insertion direction, eliminates the possibility of incorrect insertion direction, and improves the safety and reliability of the use of the connector.

[0099] The gold-plated guiding column reduces the wear of the guiding structure during the sliding process, and the guiding notch design disperses the stress during insertion, reduces the local pressure on the guiding groove and the guiding column, and extends the service life of the connector.

[0100] The integrated design of the outer ring body and the entrance of the insertion cavity, combined with the guiding notch, provides additional sealing support, so that the sealing structure will not be affected by misalignment during the insertion process, and at the same time improves the resistance of the insertion system to vibration and shock.

[0101] The setting of the guiding notch enables the guiding column to align with the front port of the guiding groove more quickly, reducing the debugging time of the operator; the L-shaped sliding path provides clear insertion steps, and the insertion operation can be quickly completed even in a complex environment.

[0102] The outer ring body provides a wider range of entrance guiding functions, enabling the guiding column to smoothly enter the guiding groove. Even under the influence of factors such as water flow, vibration or limited vision in the marine environment, accurate insertion can be achieved.

[0103] The L-shaped guiding groove and the guiding notch can be designed into standard sizes according to application requirements, which helps the modular production and compatibility expansion of the connector, and facilitates cooperation with other devices.

[0104] The addition of the gold-plated guiding column not only improves the corrosion resistance, but also enhances the high-end texture of the overall product. At the same time, the design of the L-shaped guiding groove and the outer ring body enables the connector to adapt to a wider range of industrial, marine and communication environments.

[0105] By adopting the cooperation of the gold-plated guiding column and the L-shaped guiding groove, and setting the outer ring body and the guiding notch, this design ensures the guiding accuracy and insertion stability, while also optimizing the sealing performance, corrosion resistance and operation convenience, and is particularly suitable for the application scenarios of electrical connectors that require high reliability and high precision in the marine environment.

[0106] Further, it also includes an elastic component. The elastic component includes a shape memory alloy spring resistant to the marine environment and an elastic flap. The shape memory alloy spring is arranged on one inner wall of the guide groove. The elastic flap is inclined from the front port of the guide groove towards the rear port of the guide groove. One end of the elastic flap is connected to the shape memory alloy spring. The end of the elastic flap faces the other inner wall of the guide groove. The gap between the end of the elastic flap and the other inner wall of the guide groove forms a passing gap. The passing gap is smaller than the diameter of the guide post.

[0107] When the guide post slides to the elastic flap, the guide post pushes the elastic flap to swing and causes the shape memory alloy spring to deform, so that the size of the passing gap increases to be larger than the diameter of the guide post, so that the guide post can pass through the passing gap and enter the rear port of the guide groove. After the guide post enters the rear port of the guide groove, the elastic flap resets under the action of the shape memory alloy spring, and the elastic flap locks the position of the guide post at the rear port of the guide groove.

[0108] Through the cooperation of the elastic flap and the shape memory alloy spring, the guide post can be automatically locked when sliding into the rear port of the guide groove, avoiding accidental loosening of the connector due to external vibration, impact or environmental influence, and significantly improving the stability and reliability after plugging.

[0109] The inclined arrangement of the elastic flap and the deformation characteristics of the shape memory alloy spring enable the force on the guide post to be gradually released when passing through the passing gap, reducing the risk of damage caused by jamming or local resistance during the plugging process, and ensuring the smoothness of the plugging action.

[0110] The shape memory alloy spring is made of a material resistant to the marine environment and has excellent corrosion resistance. Even in harsh environments such as salt spray and high humidity, it can still maintain its elasticity and functionality, and is suitable for special scenarios such as ocean engineering.

[0111] The locking function of the elastic flap ensures that the guide post will not shift after being plugged in place, thus achieving precise positioning and providing a basic guarantee for the signal transmission stability of the connector.

[0112] The locking function of the elastic flap reduces the free movement space of the guide post at the rear port of the guide groove, effectively suppressing loosening or wear caused by external vibration, and increasing the reliability of the connector under complex working conditions.

[0113] The shape memory alloy spring has good deformation recovery ability. The elastic flap can maintain elastic reset during multiple plugging and unplugging processes, is not easily worn, and extends the service life of the connector.

[0114] Through the dynamic change design of the passing gap, the operator can complete the plugging and locking operations of the guide post without additional tools, simplifying the installation and disassembly process of the connector and improving the on-site use efficiency.

[0115] 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.

[0116] 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.

[0117] 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.

[0118] 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.

[0119] 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.

[0120] 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.

[0121] 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.

[0122] 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.

[0123] 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.

[0124] 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.

[0125] 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.

[0126] The anti-slip texture and the grip design are particularly suitable for operations in marine environments. For example, in high-humidity and high-salt mist environments, operators can still quickly and safely unlock the connector, ensuring its normal use.

[0127] The setting of the grip allows users to complete the unlocking operation more efficiently without spending too much time looking for the unlocking position, which is particularly suitable for application scenarios that require frequent disassembly and assembly.

[0128] The design of the grip conforms to ergonomics, enabling users to hold it comfortably during operation, reducing fatigue, and enhancing the operating comfort during long-term use.

[0129] The controllable and convenient unlocking method reduces the risk of damage caused by violent operation, while optimizing the performance of the connector throughout its service life, ensuring its durability and reliability.

[0130] Through the optimized design of the grip and the anti-slip texture, the operation convenience and use reliability of the connector are further enhanced, enabling it to be easily disassembled in various environments and situations, providing an excellent user experience and long-term use guarantee, and being particularly suitable for application scenarios with complex marine environments and high-frequency operation requirements.

[0131] Furthermore, the outer wall of the rear part of the first gold-plated outer cylinder is a threaded outer wall. The first wiring part is connected to a cable, and the cable passes through the rear port of the first gold-plated outer cylinder and extends outwards. Moreover, 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;

[0132] The outer wall of the rear part of the second gold-plated outer cylinder is a threaded outer wall. The second wiring part is connected to a cable, and the cable passes through the rear port of the second gold-plated outer cylinder and extends outwards. Moreover, a corrosion-resistant sealant is filled between the second gold-plated outer cylinder and the cable, and the corrosion-resistant sealant seals the gap between the cable and the second gold-plated outer cylinder;

[0133] The corrosion-resistant sealant includes an anti-corrosion barrier layer, a flexible waterproof filling layer, a high-strength adhesion layer, and an anti-corrosion reinforcement layer. The anti-corrosion barrier layer, the flexible waterproof filling layer, the high-strength adhesion layer, and the anti-corrosion reinforcement layer are combined from the outside to the inside to form a multi-layer composite structure of the corrosion-resistant sealant;

[0134] The anti-corrosion barrier layer is composed of a fluorocarbon polymer coating or PTFE material, and has excellent chemical corrosion resistance and salt mist resistance. The thickness of the anti-corrosion barrier layer is 5 - 20 μm;

[0135] 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 the expansion and contraction caused by environmental temperature and pressure changes. The hardness range of the flexible waterproof filling layer is Shore A 30 - 50, and the tensile strength is 5 - 15 MPa;

[0136] The high-strength adhesion layer is composed of a nano-enhanced epoxy resin or a composite binder, and is used to form a firm bond with the cable and the surface of the metal outer cylinder. The adhesion strength of the high-strength adhesion layer is not less than 2 MPa;

[0137] The anti-corrosion reinforcement layer is composed of a graphene nano-coating or a silver-plated copper mesh embedded in a flexible material, and is used to enhance the electromagnetic shielding performance and corrosion resistance of the sealant, while enhancing its mechanical impact resistance.

[0138] The multi-layer composite structure corrosion-resistant sealant provides comprehensive corrosion protection through the synergistic effect of the anti-corrosion barrier layer, the flexible waterproof filling layer, the high-strength adhesion layer and the anti-corrosion reinforcement layer, and is particularly suitable for marine environments with high salt fog, high humidity and strong chemical corrosion.

[0139] Due to the high flexibility of the flexible waterproof filling layer, the sealant can accurately fill the gap between the cable and the gold-plated outer cylinder, and at the same time adapt to the expansion and contraction caused by environmental temperature and pressure changes, ensuring a long-term reliable sealing effect.

[0140] The high-strength adhesion layer forms a strong bond with the cable and the surface of the metal outer cylinder, preventing the sealant from falling off due to vibration, mechanical impact or environmental aging during long-term use, and ensuring the structural integrity of the cable and connector interface.

[0141] 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.

[0142] The design of the anti-corrosion reinforcement layer significantly enhances the mechanical impact resistance of the sealant, can maintain the integrity of the sealing structure under dynamic loads and external forces, and extends the service life of the connector in complex application scenarios.

[0143] The anti-corrosion barrier layer uses a fluorocarbon polymer coating or PTFE material, which has extremely high chemical stability and corrosion resistance, can effectively resist the erosion of seawater, salt fog and other chemical media, and reduces maintenance requirements.

[0144] The modified silicone material or high-elastic polyurethane mixture of the flexible waterproof filling layer has both high flexibility and tensile properties, and can maintain a stable sealing effect under extreme environmental conditions (such as large fluctuations in temperature and pressure).

[0145] The design of the multi-layer structure can evenly disperse external forces and environmental stresses, effectively avoid the aging or cracking phenomenon caused by the single layer being stressed, and improve the durability and fatigue resistance of the sealant.

[0146] The electromagnetic shielding performance and anti-corrosion performance provided by the anti-corrosion enhancement layer ensure the stability and integrity of signal transmission, which is particularly important in marine equipment and communication systems.

[0147] The corrosion-resistant sealant with a composite structure reduces the maintenance requirements due to corrosion or aging at the interface, greatly reduces the maintenance cost, and improves the operation efficiency of the equipment.

[0148] The multi-layer design of the sealant is suitable for the combination of various materials, and is easy to operate during the construction process, can quickly form a stable seal, and is adapted to different usage scenarios of marine electrical connectors.

[0149] This multi-layer composite structure corrosion-resistant sealant, through the reasonable combination of functional layers, provides comprehensive protection between the cable and the gold-plated outer cylinder, significantly enhances the corrosion resistance, sealing performance and electromagnetic shielding ability of the connector, is particularly suitable for complex and harsh marine environments, and improves the overall reliability and service life of the connector.

[0150] The beneficial effects of the present invention are as follows:

[0151] In the present invention, by using materials with excellent corrosion resistance, chemical corrosion resistance and salt spray resistance (such as fluorocarbon polymer coatings, PTFE, graphene, etc.), it is particularly suitable for use in harsh marine environments. The gold plating treatment of the metal part of the electrical connector and the special sealing design effectively prevent the corrosion of the contact points by seawater and other chemical substances, and improve the long-term reliability of the connector.

[0152] In the present invention, the surfaces of the male terminal and the female terminal plug are coated with graphene films, which significantly improve the stability and wear resistance of signal transmission. The graphene material has excellent electrical conductivity, and through the raised design providing multi-point contact, further improves the conductivity of the connection, ensuring the stable signal transmission of the electrical connector during long-term use.

[0153] In the present invention, the PTFE insulating layer and the flexible waterproof sealing layer (made of nano-polymer materials) inside 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 plugging cavity also enhances the waterproof and pressure-resistant performance of the connection, ensures the sealing performance in extreme environments, and prevents the electrical failure of the electrical connector.

[0154] In the present invention, a high-strength corrosion-resistant sealant composite layer is added, 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 shock performance of the connector, enabling the connector to still maintain a good working state in high-vibration and high-impact environments.

[0155] In the present invention, the design of the guiding grooves and guiding columns in the plugging part makes the plugging process more precise, avoiding improper plugging. With the design of the elastic components (shape memory alloy springs and elastic paddles), the guiding columns can be smoothly inserted and automatically locked, improving the stability and safety of the plugging process. In addition, users can easily unlock the guiding columns through the holding part, facilitating the disassembly and reconnection of the connector.

[0156] In the present invention, the combined design of the outer sleeve, the blocking ring, and the elastic sheet not only provides a sliding connection for the connector during installation, but also ensures the stability and firmness of the connector after installation. In addition, the holding part with anti-slip texture facilitates manual operation by users, enhancing the user experience.

[0157] In the present invention, the design of the signal shielding layer (silver-plated copper foil or graphene coating) effectively shields electromagnetic interference (EMI), ensuring the signal quality and safety of the device in a high-electromagnetic environment, and at the same time reducing the influence of external noise on signal transmission.

[0158] In summary, through material selection, structural optimization, and process improvement, this innovative design has improved the durability, signal transmission performance, and sealing performance of the electrical connector in the marine environment, ensuring its efficient and stable performance under extreme working conditions, and has broad application prospects, especially suitable for high-demand fields such as marine, aerospace, and military. Description of the Drawings

[0159] Figure 1 It is a schematic diagram of the female connection seat.

[0160] Figure 2 It is a schematic diagram of the female connection seat from another angle.

[0161] Figure 3 It is the front view of the female connection seat.

[0162] Figure 4 It is the right view of the female connection seat.

[0163] Figure 5 It is the assembly diagram of the female connection seat.

[0164] Figure 6 It is a schematic diagram of the second gold-plated outer cylinder of the female connection seat.

[0165] Figure 7Schematic diagram of the male connection base.

[0166] Figure 8 Another perspective schematic diagram of the male connection base.

[0167] Figure 9 Front view of the male connection base.

[0168] Figure 10 Right view of the male connection base.

[0169] Figure 11 Assembly drawing of the male connection base.

[0170] Figure 12 Schematic diagram of the first gold-plated outer cylinder of the male connection base.

[0171] Figure 13 Schematic diagram of the male connection base and the female connection base ready to be connected together.

[0172] Figure 14 Cross-sectional view of the connection between the male connection base and the female connection base.

[0173] Figure 15 Assembly schematic diagram of the male terminal and the female terminal.

[0174] Figure 16 Schematic diagram of the male terminal and the female terminal plugged together.

[0175] Figure 17 Schematic diagram of the guide post in the guide groove being blocked by the elastic component. Detailed implementation mode

[0176] The present invention will be further described below in conjunction with the drawings and embodiments:

[0177] Embodiment, in combination with Figures 1 to 17 As shown, a marine environment-resistant electrical connector includes a male connection base 1 and a female connection base. The male connection base 1 includes a first gold-plated outer cylinder 2 and a first inner core 3. At least one layer of PTFE insulating layer 21 is provided on the inner wall of the first gold-plated outer cylinder 2. The first inner core 3 includes a male terminal 31, a first PTFE insulator 32, a first crimping sleeve 33, and a first heat shrinkable tube 34. The front end of the male terminal 31 is a plug connector 311, and 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. The first heat shrinkable tube 34 is sleeved outside the first crimping sleeve 33 to form the first inner core 3;

[0178] The first inner core 3 is placed inside the first gold-plated outer cylinder 2. The PTFE insulating layer 21 is closely attached to 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 part faces the rear port of the first gold-plated outer cylinder 2.

[0179] The female connector seat 4 includes a second gold-plated outer cylinder 5, a second inner core 6, and a sealing component 7. At least one layer of PTFE insulating layer 21 is provided on the inner wall of the second gold-plated outer cylinder 5. The second inner core 6 includes a female terminal 61, a second PTFE insulator 62, a second crimping sleeve 63, and a second heat-shrinkable sleeve 64. The front end of the female terminal 61 is a socket 611, and the rear end of the female terminal 61 is a second wiring part for connecting a cable. The female terminal 61 is placed inside the second crimping sleeve 63. The second PTFE insulator 62 is placed inside the second crimping sleeve 63 and is located between the inner wall of the second crimping sleeve 63 and the female terminal 61. The second heat-shrinkable sleeve 64 is sleeved outside the second crimping sleeve 63 to form the second inner core 6.

[0180] The second inner core 6 is placed inside the second gold-plated outer cylinder 5. The PTFE insulating layer 21 on the inner wall of the second gold-plated outer cylinder closely adheres to the second inner core 6. The socket 611 faces the front port of the second gold-plated outer cylinder 5, and the second wiring part faces the rear port of the second gold-plated outer cylinder 5.

[0181] The sealing component 7 includes a lock nut 71, a toothed washer 72, and a rubber ring 73. The toothed washer 72 and the rubber ring 73 are sequentially arranged at the front port of the second gold-plated outer cylinder 5. The lock 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 port of the second gold-plated outer cylinder 5.

[0182] The front end of the second gold-plated outer cylinder 5 of the female connector seat 4 is inserted into the inner cavity of the front port of the first gold-plated outer cylinder 2 of the male connector seat 1 until the plug connector 311 of the male terminal 31 is inserted into the socket 611 of the female terminal 61. The rubber ring 73 closely adheres to the inner wall of the first gold-plated outer cylinder 2, and the PTFE insulating layer 21 on the inner wall of the first gold-plated outer cylinder 2 closely adheres to the second gold-plated outer cylinder 5, realizing the sealed connection between the female connector and the male connector.

[0183] Further, a gold-plated thin film for improving signal transmission performance is coated on the inner walls of the plug connector 311 of the male terminal 31 and the socket 611 of the female terminal 61.

[0184] Protrusions 3111 with multi-point contact are arranged at intervals on the surface of the plug connector 311 of the male terminal 31, and grooves 6111 matching the protrusions 3111 are arranged on the inner wall of the socket 611 of the female terminal 61.

[0185] The surface of the protrusion 3111 is plated with a highly conductive anti-corrosion material. Inside the socket 611 of the female terminal 61, there are symmetrically distributed flexible contact clips 6112 made of shape memory alloy. The flexible contact clips 6112 elastically clamp the plug head 311 of the male terminal 31 to ensure stable signal transmission.

[0186] Further, the male connector base 1 further includes an outer sleeve 11 and a spring piece 12. A blocking ring 22 is provided on the outer wall of the first gold-plated outer cylinder 2. The outer sleeve 11 is sleeved on the first gold-plated outer cylinder 2, and the outer sleeve 11 is slidably connected to the first gold-plated outer cylinder 2. The blocking ring 22 is located inside the cavity of the outer sleeve 11. The spring piece 12 is placed between the outer sleeve 11 and the blocking ring 22. One end of the spring piece 12 abuts against the inner wall of the outer sleeve 11, and the other end of the spring piece 12 abuts against the blocking ring 22. The elastic force of the spring piece 12 maintains the pushing of the first gold-plated outer cylinder 2.

[0187] Further, signal shielding layers 10 are provided on the outer walls of both the first gold-plated outer cylinder 2 and the second gold-plated outer cylinder 5. The signal shielding layers 10 are made of silver-plated copper foil or graphene coating. The thickness of the shielding layer is 10 - 30 um, and the outer layer of the signal shielding layer 10 is further covered with a corrosion-resistant fluorocarbon polymer coating 101 to enhance the corrosion resistance and form a continuous shielding circuit.

[0188] Further, the cavity of the first gold-plated outer cylinder 2 in front of the plug head 311 of the male terminal 31 forms a plugging cavity 312. On the inner wall of the plugging cavity 312, there is a flexible waterproof sealing layer 3122 made of nano-polymer material. Between the inner wall of the plugging cavity 312 and the flexible waterproof sealing layer 3122, there is also a micro-elastic buffer layer 3123 made of a high-voltage-resistant polymer elastic material with a slight deformation ability.

[0189] Further, a guiding groove 313 is formed on the outer wall of the plugging cavity 312. The second gold-plated outer cylinder 5 around the socket 611 of the female connector base 4 forms a plugging portion 51. Guiding posts 511 are arranged at intervals on the outer wall of the plugging portion 51;

[0190] The guiding posts 511 first insert into the front port of the guiding groove 313, and then the plugging portion 51 is moved so that the guiding posts 511 slide to the rear port of the guiding groove 313, causing the plugging portion 51 to be completely inserted into the plugging cavity 312. At this time, the plug head 311 of the male terminal 31 is inserted into the socket 611 of the female terminal 61, thereby realizing the sealed connection between the female connector and the male connector.

[0191] Further, the guide post 511 is a gold-plated guide post 511, the guide groove 313 is an "L"-shaped guide groove 313, an outer ring body 314 is provided at the entrance of the insertion cavity 312, the inner cavity of the outer ring body 314 communicates with the entrance of the insertion cavity 312, and a guiding notch 3141 is formed in the inner cavity of the outer ring body 314 corresponding to the front port of the guide groove 313, and the guiding notch 3141 communicates with the front port of the guide groove 313.

[0192] Further, an elastic component 20 is further included. The elastic component 20 includes a shape memory alloy spring 201 resistant to the marine environment and an elastic flap 202. The shape memory alloy spring 201 is arranged on one inner wall of the guide groove 313. The elastic flap 202 inclines from the front port of the guide groove 313 towards the rear port of the guide groove 313. One end of the elastic flap 202 is connected to the shape memory alloy spring 201. The end of the elastic flap 202 faces the other inner wall of the guide groove 313. A passing gap 203 is formed between the end of the elastic flap 202 and the other inner wall of the guide groove 313. The passing gap 203 is smaller than the diameter of the guide post 511.

[0193] When the guide post 511 slides to the elastic flap 202, the guide post 511 pushes the elastic flap 202 to swing and deforms the shape memory alloy spring 201, so that the size of the passing gap 203 increases to be larger than the diameter of the guide post 511, so that the guide post 511 can pass through the passing gap 203 and enter the rear port of the guide groove 313. After the guide post 511 enters the rear port of the guide groove 313, the elastic flap 202 resets under the action of the shape memory alloy spring 201, and the elastic flap 202 locks the position of the guide post 511 at the rear port of the guide groove 313.

[0194] Further, a holding part 204 for facilitating the user to drive the flap to swing and release the locking of the guide post 511 is arranged on the outer side of the elastic flap 202, and anti-slip textures are arranged on the surface of the holding part 204.

[0195] Further, the rear outer wall of the first gold-plated outer cylinder 2 is a threaded outer wall. The first wiring part is connected with a cable 30. The cable 30 passes through the rear port of the first gold-plated outer cylinder 2 and extends outwards. Moreover, 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.

[0196] The rear outer wall of the second gold-plated outer cylinder 5 is a threaded outer wall. The second wiring part is connected with a cable 30. The cable 30 passes through the rear port of the second gold-plated outer cylinder 5 and extends outwards. Moreover, 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.

[0197] The corrosion-resistant sealant 301 includes a corrosion-proof barrier layer 3011, a flexible waterproof filling layer 3012, a high-strength adhesion layer 3013, and a corrosion-resistant reinforcement layer 3014. The corrosion-proof barrier layer 3011, the flexible waterproof filling layer 3012, the high-strength adhesion layer 3013, and the corrosion-resistant reinforcement layer 3014 are combined from the outside to the inside in sequence to form a multi-layer composite structure of the corrosion-resistant sealant 301;

[0198] The corrosion-proof barrier layer 3011 is composed of a fluorocarbon polymer coating 101 or PTFE material, and has excellent chemical corrosion resistance and salt spray resistance. The thickness of the corrosion-proof barrier layer 3011 is 5-20 μm;

[0199] The flexible waterproof filling layer 3012 is composed of a modified silicone material or a high-elastic polyurethane mixture, fills the structural gap, provides high flexibility and absorbs the expansion and contraction caused by environmental temperature and pressure changes. The hardness range of the flexible waterproof filling layer 3012 is Shore A 30-50, and the tensile strength is 5-15 MPa;

[0200] The high-strength adhesion layer 3013 is composed of a nano-enhanced epoxy resin or a composite binder, and is used to form a firm bond with the surface of the cable 30 and the metal outer cylinder. The adhesion strength of the high-strength adhesion layer 3013 is not less than 2 MPa;

[0201] The corrosion-resistant reinforcement 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, and at the same time enhance its mechanical impact resistance.

[0202] 1. Prepare for insertion

[0203] Check the connector components: Ensure that the plug joints and sockets of the male connector base 1 and the female connector base 4 are in a clean state, without dirt, rust or other obstacles that may affect the connection.

[0204] Check the sealing components: Ensure that the sealing components (such as the rubber ring 73, the spring piece 12, etc.) of the male connector base and the female connector base are in good condition, without damage or aging.

[0205] 2. Align the insertion components

[0206] Align the insertion components: Align the front end (socket 611) of the second gold-plated outer cylinder 5 of the female connector base 4 with the front end (insertion cavity 312) of the first gold-plated outer cylinder 2 of the male connector base 1.

[0207] Guiding post and guiding groove guidance: Ensure that the guiding post 511 of the female connector base 4 first inserts into the front port of the guiding groove 313 of the male connector base 1. At this time, the guiding post 511 will slide along the guiding groove 313, gradually guiding the female connector base 4 to advance into the insertion cavity 312.

[0208] 3. Insertion and locking

[0209] Insert into the insertion cavity: After alignment, gently push the female connector base 4 so that its insertion part 51 is guided by the guiding groove 313, and the guiding post 511 finally slides to the rear port of the guiding groove 313.

[0210] Insert the plug into the socket: As the female connector base is further advanced, the plug 311 of the male terminal 31 will insert 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.

[0211] Lock the connection: Once the insertion part 51 is completely inserted into the insertion cavity 312, the connector is automatically locked. The elastic flap 202 is reset under the action of the shape memory alloy spring 201, locking the guiding post 511 at the rear port of the guiding groove 313, thus ensuring the firm connection between the plug 311 and the socket 611.

[0212] 4. Sealed connection

[0213] Sealing component operation: With the completion of insertion, the rubber ring 73 closely adheres to the inner wall of the first gold-plated outer cylinder 2 to form a seal, preventing moisture or other external contaminants from entering the connection part. At the same time, the PTFE insulating layer 21 ensures the insulation and anti-corrosion properties between the second gold-plated outer cylinder 5 of the female connector base 4 and the first gold-plated outer cylinder 2 of the male connector base 1.

[0214] Waterproof seal: The flexible waterproof seal layer 3122 and the micro-elastic buffer layer 3123 on the inner wall of the insertion cavity 312 work together to effectively prevent moisture from seeping in, further improving the waterproof and high-voltage resistance performance of the connection.

[0215] 5. Signal and shielding protection

[0216] Signal transmission stability: The graphene film coated on the inner wall of the plug 311 and the socket 611 enhances the signal transmission performance and improves wear resistance. The mutual cooperation between the protrusion 3111 and the groove 6111 further increases the contact stability, ensuring the reliability of signal transmission.

[0217] Electromagnetic shielding: The signal shielding layers 10 of the first gold-plated outer cylinder 2 and the second gold-plated outer cylinder 5 effectively block external electromagnetic interference, and at the same time form a complete shielding loop to maintain clear signal transmission.

[0218] 6. Inspection and confirmation of connection

[0219] Check the connection for firmness: After the plugging is completed, check whether the male connector base 1 and the female connector base 4 are fully docked to ensure that the plugged components are not loose.

[0220] Confirm the sealing performance: Check whether the sealing components (such as the rubber ring 73 and the flexible waterproof sealing layer 3122) are fully pressed to ensure good sealing.

[0221] Check the signal transmission: Verify whether the signal transmission is stable through an electrical test device to ensure no signal loss or interference.

[0222] 7. Unlock and disconnect

[0223] Unlocking operation: If it is necessary to disconnect the connection, gently push the elastic flap 202 through the gripping portion 204 with anti-slip texture to release the locking of the guide post 511. The elastic flap 202 releases the guide post 511 from the rear port of the guide groove 313 through the return action of the shape memory alloy spring 201, thereby achieving disconnection.

[0224] This plugging method, through a precisely designed structure and multiple sealing protections, ensures reliable plugging, sealing, and signal transmission stability between the male and female connector bases in a marine environment. At the same time, it has high corrosion resistance, wear resistance, and waterproof performance, meeting the requirements of high-demand electrical connection applications.

[0225] If terms such as first and second are used in the present invention, they do not represent any order, quantity, or importance, but are only used for distinction.

[0226] If terms such as one and a certain are used in the present invention, they do not represent a limitation of quantity, but represent the existence of at least one of the mentioned objects. If terms indicating orientation or position such as top, bottom, side, longitudinal, transverse, middle, center, outer, inner, horizontal, vertical, left, right, above, and below are used in the present invention, they mean reflecting relative positions rather than absolute positions.

[0227] The above-described embodiments merely represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended 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 outside 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 female terminal, and the second heat shrink sleeve is sleeved outside 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 on the inner wall of the second gold-plated outer cylinder 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 front port inner cavity 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 wall 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; 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; The outer wall of the plug-in cavity is provided with a guide groove, and the second gold-plated outer cylinder located at the periphery of the plug-in socket of the female connector forms a plug-in portion, and the outer wall of the plug-in portion is provided with guide columns at intervals; It also includes an elastic component, which includes a memory alloy spring resistant to marine environment and an elastic pick, and the memory alloy spring is arranged on an inner wall of one side of the guide groove.

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 contacts 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: A flexible waterproof sealing layer made of nano polymer material is arranged 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 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 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: The elastic pick is inclined from the front end of the guide groove toward 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, and 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, which are sequentially combined from outside to inside to form a corrosion-resistant sealant with a multi-layer composite structure.

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