Wet plugging jack type electric connector and control method thereof

Abstract

The invention discloses an electric transmission technology, and aims to provide a wet-plugging jack type electric connector and a control method thereof, and the key points of the technical scheme are that the wet-plugging jack type electric connector comprises a housing used for accommodating and fixing all components and ensuring the structural stability; the left side of the jack assembly is tightly connected with the front insulator, the right side of the jack assembly is connected with the rear insulator, and the jack assembly comprises a plurality of jack assemblies and is used for providing electrical contact; the front insulator is positioned on the left side of the jack assembly and is used for providing electrical insulation and mechanical support; the rear insulator is located on the right side of the jack assembly and forms electrical insulation and mechanical support together with the front insulator; the outer oil bag is used for wrapping the front insulator, the jack assembly and the rear insulator and fixing the front insulator, the jack assembly and the rear insulator in the shell so as to enhance the sealing performance of the connector; the oil bag hoop ring is installed on the jack assembly and used for ensuring precise positioning of the jack assembly in the front insulator and preventing dislocation in the inserting and pulling-out processes; the invention is suitable for the technical field of electric transmission.

Description

Technical Field

[0001] The present invention relates to an electrical transmission technology, and more particularly to a wet plug-in socket type electrical connector and a control method thereof. Background Art

[0002] The application of wet-plug connectors in marine equipment and industries such as offshore oil and seabed observation is mainly reflected in the following aspects: Provide stable and reliable electrical connections, even in high pressure, high temperature and corrosive environments. Allow equipment maintenance and replacement without interrupting the production process. Improve the efficiency and accuracy of data transmission, which is essential for real-time monitoring and production control. Enhance the flexibility and maintainability of the system to adapt to the changing needs of marine equipment and industries. A pair of wet-plug connectors generally includes one pin connector and one socket connector. During underwater operations, the two parts of a pair of wet-plug connectors will have various misaligned mating, such as: non-concentricity, radial misalignment and rotation around the axis, resulting in poor mating or inadequate mating. In addition, due to the complex structure of the wet-plug connector, when there are multiple sockets or pins in a connector, the parts are not necessarily concentric, which will also lead to poor mating, which brings high requirements on the processing accuracy and assembly accuracy of the parts. Therefore, there is an urgent need for a wet-plug connector with precise positioning of the socket and resistance to misalignment. Summary of the invention

[0003] In view of the deficiencies in the prior art, an object of the present invention is to provide a wet-plug socket-type electrical connector that prevents misalignment and a control method thereof.

[0004] To achieve the above object, the present invention provides the following technical solution: a wet-pluggable socket-type electrical connector, comprising:

[0005] The housing is used to accommodate and fix all components to ensure structural stability;

[0006] A jack assembly, the left side of which is tightly connected to the front insulator and the right side of which is connected to the rear insulator, the jack assembly comprising a plurality of jack assemblies for providing electrical contact;

[0007] a front insulator, located on the left side of the jack assembly, for providing electrical insulation and mechanical support;

[0008] A rear insulator, located on the right side of the jack assembly, and together with the front insulator, forms electrical insulation and mechanical support;

[0009] An outer oil bag is used to wrap the front insulator, the jack assembly, and the rear insulator and fix them in the housing to enhance the sealing performance of the connector;

[0010] The oil bag hoop is installed on the jack assembly to ensure the precise positioning of the jack assembly in the front insulator to prevent misalignment during insertion and removal;

[0011] The clamp ring is used to fix the outer oil bag to prevent the parts from falling out of the housing;

[0012] The sealing ring is arranged between the rear insulator and the housing to prevent liquid from entering the interior of the connector.

[0013] The present invention is further configured as follows: the jack assembly comprises:

[0014] The jack housing is used to accommodate the thrust rod, the inner oil bag and the spring to form the overall structure of the jack assembly;

[0015] A push rod, located at the front end of the jack assembly and encapsulated in the jack housing, is used to achieve sealing when the connector is not plugged in, and moves inward to achieve a sealed connection when plugged in;

[0016] A spring is disposed inside the socket housing and is used to reset the push rod when the connector is not plugged in;

[0017] The inner oil bag is located inside the push rod, and a plurality of bosses are arranged inside the front end of the inner oil bag for sealing the push rod or the pin; a plurality of bosses are arranged outside the front end of the inner oil bag for sealing between the jack assembly and the front insulator, thereby forming a double sealing structure of the jack assembly.

[0018] The present invention is further configured as follows: a plurality of semicircular outer bosses are arranged on the outside of the front end of the inner oil bag, which are used to achieve sealing between the jack assembly and the front insulator; a plurality of semicircular inner bosses are arranged on the inside of the front end of the inner oil bag, which are used to achieve sealing of the push rod and ensure sealing of the pin during insertion.

[0019] The present invention is further configured as follows: a limited position section is also provided on the inner oil bag, and the oil bag hoop can be installed from the front end so that the oil bag hoop is completely covered on the inner oil bag, thereby ensuring the connection between the socket housing and the front insulator, preventing the torsional force during misaligned insertion from damaging or tilting the inner oil bag, thereby achieving a protective function and optimizing the sealing function of the connector.

[0020] The present invention is further configured as follows: the housing is made of TC4 or stainless steel material to improve the corrosion resistance and durability of the connector.

[0021] The present invention is further configured as follows: the front insulator is made of PEEK material, which has good electrical insulation performance, mechanical strength and temperature resistance.

[0022] A control method for a wet-plug socket type electrical connector, characterized in that it comprises the following steps:

[0023] S1. Component installation and inspection: Install and assemble all components in the housing of the socket-type electrical connector according to the design requirements and fix them in the housing through the clamp ring. Then, before starting the electrical connector, check whether all components are assembled correctly to ensure that there is no looseness or damage to avoid subsequent abnormal operation due to component problems;

[0024] S2. Electrical contact status monitoring: First, install a current sensor to monitor the current status in real time, and preset the minimum current threshold A. If the real-time current A1 < A, it is determined that the electrical contact is poor or the pin is not fully inserted, and the system stops working and issues a check prompt; if the real-time current A1 ≥ A, it is determined that the pin is fully inserted and continues to work;

[0025] S3, Internal and external oil bag status monitoring: Set a pressure sensor to monitor the oil bag pressure in real time, set the oil bag pressure threshold P, if the real-time oil bag pressure P1 < P, the oil bag is judged to be in an abnormal state, the system automatically stops working and notifies personnel to check; otherwise, the system continues to work normally;

[0026] S4, monitoring of displacement and sealing: by installing an offset sensor to monitor the relative position of the jack assembly and the front and rear insulators after insertion and removal, and installing a sensor to monitor the sealing state of the push rod after insertion and removal, set the offset threshold T, set the push rod sealing state threshold S, if the offset after insertion / removal T1>T and the sealing state S1>S or only T1>T or only S1>S, the system will stop working and notify the operator to check; otherwise, it will continue to work normally;

[0027] S5. Liquid intrusion monitoring: Install liquid sensors inside and outside the electrical connector to detect the amount of liquid intrusion, set the liquid intrusion threshold L, if the liquid intrusion amount L1 ≥ L, the system determines that liquid intrusion has occurred, immediately cuts off the power supply and stops working to prevent damage to the electrical components in the connector; otherwise, it continues to work normally;

[0028] S6. Temperature overheat monitoring: Use a temperature sensor to monitor the working temperature of the electrical connector, set the maximum temperature threshold Cmax, and if the real-time temperature C1 ≥ Cmax, the system determines that the connector is overheated, automatically shuts off the power supply to protect the device, and stops working; otherwise, it continues to work normally;

[0029] S7. Sealing performance test: regularly use the pressure test device to test the sealing performance of the electrical connector as a whole, set the maximum pressure threshold Pmax and the minimum pressure threshold Pmin of the overall sealing, if the test result shows that the overall pressure P2<Pmin, the sealing is judged to be failed, the system immediately stops working, and a maintenance warning is issued; if P2>Pmax, it is judged that the electrical connector as a whole is under too much pressure, the system immediately stops working, and a maintenance warning is issued; if Pmin<P2<Pmax, it continues to work normally;

[0030] S8. Abnormality detection: During the working process, if any abnormality is detected, the system will automatically reset and send out a warning signal to prompt the operator to check and repair it.

[0031] The beneficial effects of the present invention are:

[0032] 1. Compared with the prior art, the wet-pluggable jack-type electrical connector of the present invention has good mechanical strength and electrical insulation performance by designing a stable shell structure and cooperating with the precise positioning of the front and rear insulators, the jack assembly and other components; the shell not only provides strong external protection by accommodating and fixing all components, but also ensures the precise matching of various internal components to avoid loosening or falling off of components due to vibration or external force. In order to prevent the jack assembly from being misplaced, an oil bag hoop is provided on the jack assembly to precisely position the jack assembly in the front insulator. In addition, the structure jointly formed by the shell and the front and rear insulators provides effective electrical isolation and mechanical support for the electrical connector, avoiding the risk of short circuit or electrical damage, thereby improving the working stability and safety of the equipment.

[0033] 2. The wet-plug socket-type electrical connector of the present invention adopts a push rod, an internal oil bag, and a spring structure design inside the socket assembly. The cooperation between the multiple bosses of the internal oil bag and the push rod achieves a double sealing function. This design effectively prevents liquid from entering the socket, thereby avoiding electrical failures or short circuits caused by liquid intrusion; the design of the internal oil bag can provide sealing performance during insertion, ensuring the contact seal between the socket assembly and the pin, and the push rod can automatically return to a sealed state when not plugged in through the reset function of the spring, maintaining the good sealing of the connector. The double sealing structure of the internal oil bag not only improves the waterproof and dustproof performance, but also optimizes the reliability of wet plug-in operations, greatly reducing the risk of leakage that may occur during the plug-in process.

[0034] 3. In the present invention, the inner oil bag is provided with multiple semicircular outer bosses on the front end, and the inner part is provided with a semicircular inner boss design, which further enhances the sealing effect. This design optimizes the sealing performance between the push rod and the jack, effectively avoids the sealing failure problem caused by inserting the pin, ensures no liquid penetration or air leakage during the plugging and unplugging process, and enhances the stability of the electrical connector; in addition, the double-layer boss design of the inner oil bag not only ensures the sealing between the push rod and the pin, but also improves the sealing effect between the jack assembly and the front insulator, providing reliable protection for the wet plugging and unplugging of the electrical connector. This precise sealing structure greatly improves the service life and reliability of the electrical connector, especially the working performance in harsh environments.

[0035] 4. In the present invention, by setting a limit section on the inner oil bag and using the oil bag hoop for precise positioning, it is ensured that the inner oil bag will not be misplaced or tilted inside the connector. The application of the oil bag hoop enables the inner oil bag to be accurately fixed between the socket shell and the front insulator to prevent the inner oil bag from being damaged or destroyed due to torsional force during the plugging and unplugging process. Through this design, the inner oil bag can not only maintain good sealing performance, but also effectively prevent sealing failure caused by misalignment or deviation in the plugging and unplugging operation. This optimized design enhances the use stability and durability of the electrical connector in a wet plugging and unplugging environment, thereby avoiding the invasion of external substances such as liquids or dust on electrical components, and improving the safety and corrosion resistance of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a structural diagram of the wet-plug socket type electrical connector of the present invention.

[0037] Figure 2 It is a cross-sectional structural diagram of the socket assembly in the wet-plug socket type electrical connector of the present invention.

[0038] Figure 1-2 Figure numerals: 1, housing; 2, front insulator; 3, rear insulator; 4, outer oil bag; 5, oil bag hoop; 6, clamping ring; 7, sealing ring; 8, socket housing; 9, push rod; 10, spring; 11, inner oil bag; 12, outer boss; 13, inner boss; 14, limit section. DETAILED DESCRIPTION

[0039] Reference Figure 1-2 The wet-plug socket-type electrical connector and the control method thereof are further described in the embodiments of the present invention.

[0040] For ease of explanation, spatial relative terms such as "upper", "lower", "left", "right" and the like are used in the embodiments to illustrate the relationship of one element or feature shown in the figure relative to another element or feature. It should be understood that, in addition to the orientation shown in the figure, the spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, the element described as being "under" other elements or features will be positioned "on" other elements or features. Therefore, the exemplary term "under" can include both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here can be interpreted accordingly.

[0041] Furthermore, relational terms such as “first” and “second” and the like are merely used to distinguish one component from another having the same name, but do not necessarily require or imply any such actual relationship or order between these components.

[0042] Figure 1 to Figure 2A wet-pluggable receptacle type electrical connector is shown, comprising:

[0043] Shell 1, used to accommodate and fix all components to ensure structural stability;

[0044] A jack assembly, the left side of which is tightly connected to the front insulator 2 and the right side is connected to the rear insulator 3, the jack assembly comprising a plurality of jack assemblies for providing electrical contact;

[0045] A front insulator 2, located on the left side of the jack assembly, for providing electrical insulation and mechanical support;

[0046] The rear insulator 3 is located on the right side of the jack assembly and together with the front insulator 2 constitutes electrical insulation and mechanical support;

[0047] The outer oil bag 4 is used to wrap the front insulator 2, the jack assembly, and the rear insulator 3, and fix them in the housing 1 to enhance the sealing performance of the connector;

[0048] The oil bag hoop 5 is mounted on the jack assembly to ensure the precise positioning of the jack assembly in the front insulator 2 to prevent misalignment during insertion and removal;

[0049] The clamping ring 6 is used to fix the outer oil bag 4 to prevent the parts from falling out of the housing 1;

[0050] A sealing ring 7 is provided between the rear insulator 3 and the housing 1 to prevent liquid from entering the interior of the connector;

[0051] Compared with the prior art, the wet-pluggable jack type electrical connector of the present invention has good mechanical strength and electrical insulation performance by designing a stable shell 1 structure and cooperating with the precise positioning of the front and rear insulators 3, the jack assembly and other components; the shell 1 not only provides strong external protection by accommodating and fixing all components, but also ensures the precise matching of various internal components to avoid loosening or falling off of components due to vibration or external force. In order to prevent the jack assembly from being misplaced, an oil bag hoop 5 is provided on the jack assembly to precisely position the jack assembly in the front insulator 2. In addition, the structure jointly formed by the shell 1 and the front and rear insulators 3 provides effective electrical isolation and mechanical support for the electrical connector, avoiding the risk of short circuit or electrical damage, thereby improving the working stability and safety of the equipment.

[0052] The jack assembly comprises:

[0053] The jack housing 8 is used to accommodate the push rod 9, the inner oil bag 11 and the spring 10 to form the overall structure of the jack assembly;

[0054] The push rod 9 is located at the front end of the jack assembly and is encapsulated in the jack housing 8, and is used to achieve sealing when the connector is not plugged in, and moves inward to achieve a sealed connection when plugged in;

[0055] A spring 10 is disposed inside the socket housing 8 and is used to reset the push rod 9 when the connector is not plugged in;

[0056] The inner oil bag 11 is located inside the push rod 9. A plurality of bosses are provided inside the front end of the inner oil bag 11 for sealing the push rod 9 or the plug pin. A plurality of bosses are provided outside the front end of the inner oil bag 11 for sealing between the jack assembly and the front insulator 2, thereby forming a double sealing structure of the jack assembly.

[0057] The plug assembly adopts a structural design of a push rod 9, an inner oil bag 11, and a spring 10. The cooperation between the multiple bosses of the inner oil bag 11 and the push rod 9 realizes a double sealing function. This design effectively prevents liquid from entering the inside of the jack, thereby avoiding electrical failure or short circuit caused by liquid intrusion; the design of the inner oil bag 11 can provide sealing performance during plugging and ensure the contact seal between the plug assembly and the pin. At the same time, the push rod 9 can automatically return to the sealing state when not plugged in through the reset function of the spring 10, maintaining the good sealing of the connector. The double sealing structure of the inner oil bag 11 not only improves the waterproof and dustproof performance, but also optimizes the reliability of wet plugging and unplugging operations, greatly reducing the risk of leakage that may occur during plugging and unplugging.

[0058] The front end of the inner oil bag 11 is provided with a plurality of semicircular outer bosses 12 for sealing the jack assembly and the front insulator 2; the front end of the inner oil bag 11 is provided with a plurality of semicircular inner bosses 13 for sealing the push rod 9 and ensuring the sealing of the pin during insertion;

[0059] The inner oil bag 11 is provided with multiple semicircular outer bosses 12 on the front end, and a semicircular inner boss 13 is designed inside, which further enhances the sealing effect. This design optimizes the sealing performance between the push rod 9 and the jack, effectively avoids the sealing failure problem caused by inserting the pin, ensures no liquid penetration or air leakage during the plugging and unplugging process, and enhances the stability of the electrical connector; in addition, the double-layer boss design of the inner oil bag 11 not only ensures the sealing between the push rod 9 and the pin, but also improves the sealing effect between the jack assembly and the front insulator 2, providing reliable protection for the wet plugging and unplugging of the electrical connector. This precise sealing structure greatly improves the service life and reliability of the electrical connector, especially its working performance in harsh environments.

[0060] The inner oil bag 11 is also provided with a limited position section 14, and the oil bag hoop 5 can be installed from the front end, so that the oil bag hoop 5 is completely covered on the inner oil bag 11, ensuring the connection between the jack housing 8 and the front insulator 2, preventing the torsional force during misaligned insertion from damaging or tilting the inner oil bag 11, realizing the protection function, thereby optimizing the sealing function of the connector;

[0061] By setting a limit section 14 on the inner oil bag 11 and using the oil bag hoop 5 for precise positioning, it is ensured that the inner oil bag 11 will not be misplaced or tilted inside the connector. The application of the oil bag hoop 5 enables the inner oil bag 11 to be accurately fixed between the socket shell 8 and the front insulator 2 to prevent the inner oil bag 11 from being damaged or destroyed due to torsional force during the plugging and unplugging process. Through this design, the inner oil bag 11 can not only maintain good sealing performance, but also effectively prevent sealing failure caused by misalignment or deviation in the plugging and unplugging operation. This optimized design enhances the stability and durability of the electrical connector in a wet plugging and unplugging environment, thereby avoiding the invasion of external substances such as liquids or dust on electrical components, and improving the safety and corrosion resistance of the equipment.

[0062] The housing 1 is made of TC4 or stainless steel to improve the corrosion resistance and durability of the connector;

[0063] In the present invention, the shell 1 adopts high-performance materials such as TC4 or stainless steel. These materials have excellent corrosion resistance and mechanical strength. TC4 alloy and stainless steel materials can effectively resist erosion from the external environment and are particularly suitable for applications in harsh environments such as high humidity and salt spray, ensuring that the connector can maintain good performance after working for a long time. The use of this material also improves the durability of the connector and extends its service life, thereby reducing maintenance costs. At the same time, the shell 1 structure made of high-strength materials can effectively withstand mechanical pressure and external impacts, prevent damage to the connector due to accidents, and further improve the reliability and stability of the connector.

[0064] The front insulator 2 is made of PEEK material, which has good electrical insulation performance, mechanical strength and temperature resistance;

[0065] The front insulator 2 is made of PEEK material, which is a material with excellent electrical insulation properties, mechanical strength and high temperature resistance. The use of PEEK can ensure that the connector can still maintain stable performance in high temperature, high pressure, humidity and other environments. Especially in high temperature environments, the PEEK material will not be thermally deformed or damaged, thereby improving the working stability of the electrical connector. In addition, the PEEK material itself has strong resistance to chemical corrosion and can resist the erosion of a variety of chemical substances, further enhancing the protection and durability of the electrical connector.

[0066] A control method for a wet-plug socket type electrical connector, characterized in that it comprises the following steps:

[0067] S1. Component installation and inspection: Install and assemble all components in the housing 1 of the jack-type electrical connector according to the design requirements and fix them in the housing 1 through the clamp ring 6. Then, before starting the electrical connector, check whether all components are assembled correctly to ensure that there is no looseness or damage to avoid subsequent abnormal operation due to component problems;

[0068] S2. Electrical contact status monitoring: First, install a current sensor to monitor the current status in real time, and preset the minimum current threshold A. If the real-time current A1 < A, it is determined that the electrical contact is poor or the pin is not fully inserted, and the system stops working and issues a check prompt; if the real-time current A1 ≥ A, it is determined that the pin is fully inserted and continues to work;

[0069] S3, internal and external oil bag 4 status monitoring: set the pressure sensor to monitor the pressure of the oil bag in real time, set the oil bag pressure threshold P, if the real-time oil bag pressure P1 < P, the oil bag is judged to be in an abnormal state, the system automatically stops working and notifies personnel to check; otherwise, the system continues to work normally;

[0070] S4, monitoring of displacement and sealing: by installing an offset sensor to monitor the relative position of the jack assembly and the front and rear insulators 3 after insertion and removal, and installing a sensor to monitor the sealing state of the push rod 9 after insertion and removal, set the offset threshold T, set the sealing state threshold S of the push rod 9, if the offset after insertion / removal T1>T and the sealing state S1>S or only T1>T or only S1>S, the system will stop working and notify the operator to check; otherwise, it will continue to work normally;

[0071] Displacement and sealing status are complementary and may affect each other. If only one threshold is relied upon for judgment, potential problems on the other side may be ignored. For example, displacement deviation may lead to poor sealing, or sealing failure may cause displacement problems. Relying on any one threshold alone cannot fully assess the risk. Therefore, the system must monitor both thresholds at the same time. Only when both meet the standards can the connector be ensured to be in a safe working state and avoid equipment failure caused by a single factor.

[0072] S5. Liquid intrusion monitoring: Install liquid sensors inside and outside the electrical connector to detect the amount of liquid intrusion, set the liquid intrusion threshold L, if the liquid intrusion amount L1 ≥ L, the system determines that liquid intrusion has occurred, immediately cuts off the power supply and stops working to prevent damage to the electrical components in the connector; otherwise, it continues to work normally;

[0073] S6. Temperature overheat monitoring: Use a temperature sensor to monitor the working temperature of the electrical connector, set the maximum temperature threshold Cmax, and if the real-time temperature C1 ≥ Cmax, the system determines that the connector is overheated, automatically shuts off the power supply to protect the device, and stops working; otherwise, it continues to work normally;

[0074] S7. Sealing test: Regularly use the pressure test device to test the sealing performance of the electrical connector as a whole, set the maximum pressure threshold Pmax and the minimum pressure threshold Pmin of the overall sealing, if the test result shows that the overall pressure P2<Pmin, the sealing is judged to be failed, the system immediately stops working, and a maintenance warning is issued; if P2>Pmax, it is judged that the electrical connector as a whole is under too much pressure, the system immediately stops working, and a maintenance warning is issued; if Pmin<P2<Pmax, it continues to work normally;

[0075] S8, Abnormality Detection: During the working process, if any abnormality is detected, the system will automatically reset and send out a warning signal to prompt the operator to check and repair;

[0076] The control method proposed in the present invention monitors the working status of the electrical connector in real time through a variety of sensors, including parameters such as electrical contact, current status, internal and external oil bag 4 pressure, displacement, sealing, liquid intrusion, etc.; these monitoring steps ensure that during the plugging and unplugging process, the connector can promptly detect potential faults and take corresponding protective measures, such as automatically stopping work, issuing warnings, etc. By real-time monitoring of the key parameters of the electrical connector, it is possible to deal with problems in the equipment in a timely manner to avoid equipment damage or failure caused by improper operation or environmental factors, thereby greatly improving the safety and reliability of the system. In addition, detection functions such as temperature overheating and liquid intrusion can effectively prevent damage to electrical components and ensure the long-term stable operation of the equipment.

[0077] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A wet-pluggable jack-type electrical connector, characterized in that: include: A housing (1) is used to accommodate and fix all components to ensure structural stability; A jack assembly, the left side of which is tightly connected to the front insulator (2) and the right side of which is connected to the rear insulator (3), the jack assembly comprising a plurality of jack assemblies for providing electrical contact; A front insulator (2), located on the left side of the jack assembly, for providing electrical insulation and mechanical support; A rear insulator (3), located on the right side of the jack assembly, and together with the front insulator (2) forms electrical insulation and mechanical support; An outer oil bag (4) is used to wrap the front insulator (2), the jack assembly, and the rear insulator (3), and fix them in the housing (1) to enhance the sealing performance of the connector; An oil bag hoop (5) is mounted on the jack assembly and is used to ensure the precise positioning of the jack assembly in the front insulator (2) to prevent misalignment during insertion and removal; A clamping ring (6) is used to fix the outer oil bag (4) to prevent the parts from falling out of the housing (1); The sealing ring (7) is arranged between the rear insulator (3) and the housing (1) and is used to prevent liquid from entering the interior of the connector.

2. A wet-pluggable socket-type electrical connector according to claim 1, characterized in that: The jack assembly comprises: The jack housing (8) is used to accommodate the thrust rod (9), the inner oil bag (11) and the spring (10) to form the overall structure of the jack assembly; A push rod (9) is located at the front end of the jack assembly and is encapsulated in the jack housing (8), and is used to achieve sealing when the connector is not plugged in, and moves inward to achieve a sealed connection when the connector is plugged in; A spring (10) is arranged inside the socket housing (8) and is used to reset the push rod (9) when the connector is not plugged in; The inner oil bag (11) is located inside the push rod (9), and a plurality of bosses are arranged inside the front end of the inner oil bag (11) for sealing the push rod (9) or the plug pin; a plurality of bosses are arranged outside the front end of the inner oil bag (11) for sealing between the jack assembly and the front insulator (2), thereby forming a double sealing structure of the jack assembly.

3. A wet-pluggable socket-type electrical connector according to claim 2, characterized in that: The front end of the inner oil bag (11) is provided with a plurality of semicircular outer bosses (12) for achieving sealing between the jack assembly and the front insulator (2); the front end of the inner oil bag (11) is provided with a plurality of semicircular inner bosses (13) for achieving sealing of the push rod (9) and ensuring sealing of the plug pin during insertion.

4. A wet-pluggable socket-type electrical connector according to claim 2, characterized in that: The inner oil bag (11) is also provided with a limited position section (14), into which the oil bag hoop (5) can be inserted from the front end so that the oil bag hoop (5) is completely covered on the inner oil bag (11), thereby ensuring the connection between the jack housing (8) and the front insulator (2), preventing the inner oil bag (11) from being damaged or tilted by the torsional force during misaligned insertion, thereby achieving a protective function and optimizing the sealing function of the connector.

5. A wet-pluggable socket-type electrical connector according to claim 1, characterized in that: The housing (1) is made of TC4 or stainless steel material to improve the corrosion resistance and durability of the connector.

6. A wet-pluggable socket-type electrical connector according to claim 1, characterized in that: The front insulator (2) is made of PEEK material and has good electrical insulation performance, mechanical strength and temperature resistance.

7. A control method applicable to the wet-pluggable socket-type electrical connector according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1. Component installation and inspection: Install and assemble each component in the housing (1) of the socket-type electrical connector according to the design requirements and fix it in the housing (1) through the clamp ring (6). Then, before starting the electrical connector, check whether all components are correctly assembled to ensure that there is no looseness or damage to avoid subsequent abnormal operation due to component problems; S2. Electrical contact status monitoring: First, install a current sensor to monitor the current status in real time, and preset the minimum current threshold A. If the real-time current A1 < A, it is determined that the electrical contact is poor or the pin is not fully inserted, and the system stops working and issues a check prompt; if the real-time current A1 ≥ A, it is determined that the pin is fully inserted and continues to work; S3, internal and external oil bladder (4) status monitoring: a pressure sensor is set to monitor the pressure of the oil bladder in real time, and the oil bladder pressure threshold P is set. If the real-time oil bladder pressure P1 < P, the oil bladder is judged to be in an abnormal state, the system automatically stops working and notifies personnel to check; otherwise, the system continues to work normally; S4, monitoring of displacement and sealing: by installing an offset sensor to monitor the relative position of the jack assembly and the front and rear insulators (3) after insertion and removal, and installing a sensor to monitor the sealing state of the push rod (9) after insertion and removal, setting an offset threshold T, setting a sealing state threshold S of the push rod (9), if the offset after insertion / removal T1>T and the sealing state S1>S or only T1>T or only S1>S, the system will stop working and notify the operator to check; otherwise, it will continue to work normally; S5. Liquid intrusion monitoring: Install liquid sensors inside and outside the electrical connector to detect the amount of liquid intrusion, set the liquid intrusion threshold L, if the liquid intrusion amount L1 ≥ L, the system determines that liquid intrusion has occurred, immediately cuts off the power supply and stops working to prevent damage to the electrical components in the connector; otherwise, it continues to work normally; S6. Temperature overheat monitoring: Use a temperature sensor to monitor the working temperature of the electrical connector, set the maximum temperature threshold Cmax, and if the real-time temperature C1 ≥ Cmax, the system determines that the connector is overheated, automatically shuts off the power supply to protect the device, and stops working; otherwise, it continues to work normally; S7. Sealing performance test: regularly use the pressure test device to test the sealing performance of the electrical connector as a whole, set the maximum pressure threshold Pmax and the minimum pressure threshold Pmin of the overall sealing, if the test result shows that the overall pressure P2<Pmin, the sealing is judged to be failed, the system immediately stops working, and a maintenance warning is issued; if P2>Pmax, it is judged that the electrical connector as a whole is under too much pressure, the system immediately stops working, and a maintenance warning is issued; if Pmin<P2<Pmax, it continues to work normally; S8. Abnormality detection: During the working process, if any abnormality is detected, the system will automatically reset and send out a warning signal to prompt the operator to check and repair it.

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