An electrical connector

Abstract

The present application relates to the field of electrical connectors, and in particular to an electrical connector. It includes a rubber core, a plurality of terminals and a back cover. The rubber core is provided with a plurality of slots for the terminal assembly. A connection port is provided on one side of the rubber core, and the connection port is provided for the connector to connect with an external connector. The back cover is closed on the top of the connection port, and the back cover is snap-fitted with the rubber core and the terminal. The terminal is a metal with a certain elasticity, and the side wall is integrally formed with two arc-shaped extensions extending along the extensions. The extensions are located inside the connection port and form a triangular protrusion. The chamfer of the protrusion causes elastic deformation when the external connector is inserted, thereby achieving the effect of giving way and locking. In addition, it also includes structures such as positioning pins, double-layer sealing rings and limit blocks, which improve the accuracy, reliability and environmental protection level of the connection. The present application achieves the goal of enhancing the stability and durability of the connector, while improving the dustproof and waterproof performance and technical effects.

Description

Technical Field

[0001] The present application relates to the field of electrical connectors, and in particular to an electrical connector. Background Art

[0002] Electrical connectors are widely used in electronic devices, especially in the connection of flexible printed circuit boards (FPCs). With the miniaturization and multifunctionality of electronic products, the requirements for electrical connectors are getting higher and higher. Traditional FPC connectors are mainly composed of two parts: a socket and a plug, and the stability of the connection is ensured by a precise contact structure. These connectors are widely used in portable electronic devices such as smartphones, tablets, and laptops because of their small size and adaptability to bending.

[0003] In order to achieve a stable connection, existing FPC connectors usually use the following technical means: first, screw fixation to enhance the reliability of the connection; second, use additional locking components such as spring buckles to lock the connection state; third, optimize the design of the terminal to improve the stability and reliability of the contact. For example, some connectors use a terminal design with elastic arms to ensure that sufficient pressure can be provided during the insertion process to maintain a good electrical connection. Others improve dust and water resistance by adding sealing rings and other methods to adapt to more stringent working environments.

[0004] However, the above method has certain defects. Especially for application scenarios that require frequent plugging and unplugging, the connector fixed with screws is not only inconvenient to operate, but also prone to wear and even damage due to multiple twisting. Although the additional locking components can enhance the reliability of the connection, they also increase the complexity and cost of the product. In addition, traditional terminal designs often find it difficult to balance the stability of the connection and the need for easy installation, so there is still room for improvement in practical applications. These problems directly affect the user experience and the market competitiveness of the product. Summary of the invention

[0005] The purpose of this application is to overcome the above technical problems and provide an electrical connector An electrical connector includes a rubber core, a plurality of terminals and a back cover, wherein the rubber core is provided with a plurality of slots for the terminals to be assembled, a connection port is provided on one side of the rubber core, the connection port is provided for the connector to be connected to an external connector, the back cover is covered on the top of the connection port, and the back cover is snap-fitted with the rubber core and the terminals; wherein the terminals are made of metal with a certain elasticity, the side walls of the terminals are integrally formed and extend with two extension portions, the extension portions are arc-shaped structures, the extension portions are located inside the connection port, and the ends of the extension portions form triangular protrusions toward the inside of the connection port.

[0006] By adopting the above technical solution, the elastic design of the terminal and the structure of the triangular protrusion can produce elastic deformation when the external connector is inserted, so as to make way and quickly rebound and lock, thus ensuring the stability and reliability of the connection. At the same time, the arc structure of the extension part and the multiple triangular protrusions arranged at intervals enhance the locking effect and improve the overall stability of the connector. In addition, the connection part at the top of the terminal is tightly connected with the convex strip of the rear cover, which not only strengthens the structural strength of the rear cover, but also ensures the connection strength of the terminal and the stability of long-term use.

[0007] Preferably, the chamfer of the triangular protrusion causes elastic deformation of the external connector when it is inserted into the connection port, thereby achieving a giving way and locking effect.

[0008] By adopting the above technical solution, the chamfered design of the triangular protrusion allows the external connector to enter smoothly when inserted into the connection port, avoiding damage caused by hard collision. At the same time, due to the elastic deformation of the terminal, when the external connector is fully inserted, the terminal will automatically rebound, thereby effectively locking the external connector and enhancing the stability and reliability of the connection. In addition, the chamfered design also helps to reduce friction, reduce wear during insertion, and extend the service life of the connector.

[0009] Preferably, the number of the triangular protrusions is two, which are arranged at intervals along the direction of insertion of the external joint.

[0010] By adopting the above technical solution, the two triangular protrusions are arranged at intervals along the insertion direction of the external connector, which not only enhances the stability of the connection, but also improves the reliability and service life of the connector. Specifically, when the external connector is inserted into the connection port, the first triangular protrusion first undergoes elastic deformation to make way for the external connector, and then the second triangular protrusion also deforms to achieve a secondary locking effect. This multiple locking mechanism significantly improves the stability of the connector under vibration and impact conditions and reduces the risk of loosening and falling off. In addition, the design of the two triangular protrusions also simplifies the manufacturing process and reduces production costs.

[0011] Preferably, a connecting portion extends outward from the top of the terminal, and the connecting portion is used to connect with the back cover. A convex strip is correspondingly provided at the end of the back cover. The convex strip adopts a trapezoidal cross-section structure and the top end is arc-shaped. Correspondingly, the connecting portion is located above the convex strip, and a groove is provided on the lower surface of the connecting portion. The convex strip and the groove are tightly snap-fitted to ensure connection reliability and vibration resistance.

[0012] By adopting the above technical solution, a connecting part extends outward from the top of the terminal, and the connecting part is tightly engaged with the convex strip on the back cover, ensuring the reliability and vibration resistance of the connection. The convex strip with a trapezoidal cross-section structure not only strengthens the overall rigidity of the back cover, but also reduces stress concentration through the arc top design, ensuring that the groove width of the connecting part is moderate, thereby enhancing the connection strength and long-term stability of the terminal.

[0013] Preferably, the trapezoidal cross-sectional structure of the convex strip strengthens the overall rigidity of the back cover and reduces stress concentration through the arc top design, while ensuring that the groove width of the connecting part is moderate to ensure the connection strength and long-term stability of the terminal.

[0014] By adopting the above technical solution, the trapezoidal cross-section structure of the convex strip can significantly enhance the overall rigidity of the back cover and improve the connector's ability to resist deformation when subjected to external force impact. The arc top design effectively reduces stress concentration and avoids the risk of material fatigue and fracture caused by excessive local stress. At the same time, the reasonable groove width design ensures the connection strength of the terminal, which is neither too narrow to cause unstable connection nor too wide to affect the thickness and mechanical properties of the terminal, thereby ensuring the stability and reliability of the connector during long-term use.

[0015] Preferably, the material of the rubber core is high-performance polyamide resin, which has excellent heat resistance and insulation properties to ensure electrical isolation; the material of the terminal is beryllium bronze alloy, which has high conductivity and good fatigue life to enhance conductivity and durability.

[0016] By adopting the above technical solution, the material of the rubber core is high-performance polyamide resin, which has excellent heat resistance and insulation to ensure electrical isolation; the material of the terminal is beryllium bronze alloy, which has high conductivity and good fatigue life to enhance conductivity and durability.

[0017] Preferably, it also includes a positioning pin, which is fixed on one side of the rubber core and is used to match the positioning hole on the external joint to improve the accuracy and reliability of the connection. The end of the positioning pin is provided with a tapered guide section to facilitate quick alignment and insertion.

[0018] By adopting the above technical solution, the addition of the positioning pin significantly improves the accuracy of the connection between the electrical connector and the external connector, ensuring the reliability during the connection process. In particular, the tapered guide section design at the end of the positioning pin not only facilitates quick alignment and insertion, but also effectively reduces the installation error caused by misalignment, improving the overall assembly efficiency and quality.

[0019] Preferably, a double-layer sealing ring is provided on the edge of the back cover, the first layer of sealing ring is close to the inner edge of the connecting port, and the second layer of sealing ring covers the outer side of the first layer of sealing ring. The double sealing design effectively prevents external dust and moisture from entering the connecting port, thereby improving the environmental protection level.

[0020] By adopting the above technical solution, a double-layer sealing ring is provided on the edge of the back cover, the first sealing ring is close to the inner edge of the connection port, and the second sealing ring covers the outer side of the first sealing ring. This double sealing design effectively prevents external dust and moisture from entering the connection port, thereby improving the environmental protection level.

[0021] Preferably, a limit block is provided in the slot of the rubber core. The limit block adopts a T-shaped structure and is embedded in the groove at the bottom of the slot to accurately limit the position of the terminal in the slot, ensuring the stability and reliability of the terminal while facilitating assembly and maintenance.

[0022] By adopting the above technical solution, the T-shaped structure of the limit block is embedded in the groove at the bottom of the slot, accurately limiting the position of the terminal in the slot and ensuring the stability and reliability of the terminal. At the same time, this design simplifies the assembly process and improves the convenience of maintenance.

[0023] Preferably, a stepped guiding slope is provided at the entrance of the connection port, and the angle of each step gradually decreases and finally transitions to a straight section. This multi-level guiding design helps to guide the external connector to enter the connection port smoothly and reduce friction and insertion resistance.

[0024] By adopting the above technical solution, a stepped guiding slope is set at the entrance of the connection port, and the angle of each step gradually decreases, and finally transitions to a straight section. This multi-level guiding design helps to guide the external connector to enter the connection port smoothly, reduces friction and insertion resistance, and improves the convenience and reliability of the connection.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. Two arc-shaped extensions are formed along the integral side wall of the terminal, and triangular protrusions are formed at the ends, so that elastic deformation, giving way and locking effects are achieved when the external connector is inserted, thereby improving the stability and reliability of the connection; 2. There are two triangular protrusions, which are arranged at intervals along the insertion direction of the external connector, which enhances the locking effect of the connector, avoids loosening due to single-point force, and improves the stability and safety of the overall connection; 3. A connecting portion extends outward from the top of the terminal, which is tightly snap-fitted with the trapezoidal cross-section convex strip of the rear cover, which not only strengthens the overall rigidity of the rear cover, but also ensures the connection strength and long-term stability of the terminal, simplifies the structure of the connector and reduces manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of an electrical connector in an embodiment of the present application.

[0027] Figure 2 It is a cross-sectional view of an electrical connector in an embodiment of the present application.

[0028] Explanation of the reference numerals: 1. rubber core; 11. slot; 12. connection port; 2. terminal; 21. extension portion; 211. triangular protrusion; 22. connection portion; 221. groove; 3. back cover; 31. convex strip. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-Figure 2 This application is described in further detail.

[0030] Embodiment 1: Reference Figure 1 and Figure 2 An electrical connector provided in an embodiment of the present application includes a rubber core 1, a plurality of terminals 2 and a back cover 3. The rubber core 1 is provided with a plurality of slots 11 for assembling the terminals 2. A connection port 12 is provided on one side of the rubber core 1. The connection port 12 is for connecting the connector to an external connector. The back cover 3 is covered above the connection port 12. The back cover 3 is snap-fitted with the rubber core 1 and the terminals 2.

[0031] Among them, the terminal 2 is a metal with a certain elasticity, and the side wall of the terminal 2 is integrally formed with two extension parts 21 extending along the side. The extension part 21 is an arc structure, and the extension part 21 is located inside the connecting port 12. The end of the extension part 21 forms a triangular protrusion 211 toward the inner side of the connecting port 12.

[0032] Correspondingly, the elastic design of the terminal 2 and the structure of the triangular protrusion 211 can produce elastic deformation when the external connector is inserted, so as to give way and quickly rebound and lock, thereby ensuring the stability and reliability of the connection.

[0033] At the same time, the arc-shaped structure of the extension portion 21 and the plurality of triangular protrusions 211 arranged at intervals enhance the locking effect and improve the overall stability of the connector.

[0034] Specifically, the rubber core 1 is the basic structural part of the entire connector, and its material is preferably high-performance polyamide resin, which has excellent heat resistance and insulation to ensure electrical isolation. The slot 11 on the rubber core 1 is used to fix the terminal 2. A limit block is provided in the slot 11. The limit block adopts a T-shaped structure and is embedded in the groove 221 at the bottom of the slot 11 to accurately limit the position of the terminal 2 in the slot 11, ensuring the stability and reliability of the terminal 2, while facilitating assembly and maintenance.

[0035] Terminal 2 is one of the key components of the connector, and its material is preferably beryllium bronze alloy, which has high conductivity and good fatigue life to enhance conductivity and durability. The side wall of terminal 2 is integrally formed with two extensions 21 extending along it. These two extensions 21 are arc-shaped structures and are located inside the connection port 12. The end of the extension 21 forms a triangular protrusion 211 toward the inside of the connection port 12. These triangular protrusions 211 are designed to produce elastic deformation when the external connector is inserted, thereby achieving the effect of giving way and locking. The number of triangular protrusions 211 can be two or more, and they are arranged at intervals along the direction of insertion of the external connector, so as to enhance the stability of the connection.

[0036] The back cover 3 is a protective component of the connector, and a convex strip 31 is correspondingly arranged at its end. The convex strip 31 adopts a trapezoidal cross-section structure, and the top end is in an arc shape. Correspondingly, a connecting portion 22 extends outward from the top of the terminal 2, and the connecting portion 22 is located above the convex strip 31. A groove 221 is provided on the lower surface of the connecting portion 22. The convex strip 31 and the groove 221 are tightly engaged to ensure connection reliability and vibration resistance.

[0037] Among them, the trapezoidal cross-sectional structure of the convex strip 31 strengthens the overall rigidity of the back cover 3 and reduces stress concentration through the arc top design, while ensuring that the width of the groove 221 of the connecting part 22 is moderate to ensure the connection strength and long-term stability of the terminal 2.

[0038] The implementation principle of this embodiment is: by optimizing the design of the terminal 2, especially by adding an arc-shaped extension 21 and a triangular protrusion 211 on the side wall of the terminal 2, a stable connection can be achieved without screws and additional locking components. This design not only simplifies the structure of the connector and reduces production costs, but also improves the reliability and service life of the connection. In addition, through multiple sealing designs and precise limit structures, the environmental adaptability and user experience of the connector are further improved.

[0039] Embodiment 2: The difference between this embodiment and the above embodiment is that more extensions 21 are added to the side wall of the terminal 2 to further enhance the stability of the connection. Specifically, in addition to the original two extensions 21, one or more pairs of extensions 21 can be added. These newly added extensions 21 are also arc-shaped structures, located inside the connection port 12, and the ends of the extensions 21 form triangular protrusions 211 toward the inside of the connection port 12. Such a design can provide more levels of elastic deformation and support when the external connector is inserted, thereby achieving a stronger locking effect.

[0040] In addition, the connector also includes a positioning pin, which is fixed on one side of the rubber core 1 and is used to match the positioning hole on the external connector to improve the accuracy and reliability of the connection. A tapered guide section is provided at the end of the positioning pin to facilitate quick alignment and insertion. A double-layer sealing ring is provided on the edge of the back cover 3. The first layer of sealing ring is close to the inner edge of the connection port 12, and the second layer of sealing ring covers the outside of the first layer of sealing ring. The double sealing design effectively prevents external dust and moisture from entering the connection port 12, thereby improving the environmental protection level.

[0041] A stepped guiding slope is provided at the entrance of the connection port 12, and the angle of each step gradually decreases and finally transitions to a straight section. This multi-level guiding design helps to guide the external connector to enter the connection port 12 smoothly and reduce friction and insertion resistance.

[0042] In addition, in order to further improve the environmental adaptability of the connector, this embodiment also sets three layers of sealing rings on the edge of the back cover 3, namely the first layer of sealing ring, the second layer of sealing ring and the third layer of sealing ring. The first layer of sealing ring is close to the inner edge of the connection port 12, the second layer of sealing ring covers the outside of the first layer of sealing ring, and the third layer of sealing ring covers the outside of the second layer of sealing ring. This multi-level sealing design can not only effectively prevent external dust and moisture from entering the connection port 12, but also further reduce the impact of external electromagnetic interference, and is suitable for more stringent working environments.

[0043] The implementation principle of this embodiment is: by increasing the number of extensions 21 of the terminal 2 and the number of sealing layers of the rear cover 3, the connection stability and environmental adaptability of the connector are significantly enhanced. This design enables the connector to maintain reliable connection performance in high-frequency plugging and unplugging and harsh environments, greatly improving the market competitiveness and user satisfaction of the product.

[0044] Embodiment 3: The difference between this embodiment and the above embodiment is that a new type of terminal 2 material is introduced, specifically nano silver copper alloy. Nano silver copper alloy has higher conductivity and better wear resistance, and can further improve the conductivity and durability of terminal 2 compared with traditional beryllium bronze alloy. In addition, the processing technology of nano silver copper alloy is more mature, which can achieve finer manufacturing precision, thereby ensuring that the size and shape of each part of terminal 2 are more consistent, improving the overall connection quality.

[0045] Specifically, the material of the rubber core 1 is still high-performance polyamide resin, but an appropriate amount of glass fiber reinforcement is added during the production process to further improve the mechanical strength and temperature resistance of the rubber core 1. The material of the back cover 3 is a high-strength nylon composite material, which is not only light in weight, but also has excellent impact resistance and chemical corrosion resistance, and is suitable for long-term outdoor use.

[0046] At the entrance of the connection port 12, this embodiment adopts a spiral guide design, replacing the previous stepped guide slope. The spiral guide structure can guide the external connector to smoothly enter the connection port 12 by rotation, reducing the friction and insertion resistance during linear insertion, and also avoiding the wear caused by linear insertion. This design is particularly suitable for application scenarios that require frequent plugging and unplugging, such as equipment interfaces on automated production lines.

[0047] In addition, in order to further improve the anti-oxidation performance of the connector, this embodiment applies an anti-oxidation coating on the surface of the rubber core 1 and the back cover 3. The main component of the coating is organic siloxane, which has good anti-oxidation and anti-corrosion properties and can effectively extend the service life of the connector. The coating process adopts a spraying method to ensure that the coating is evenly distributed on the surface of the connector, with a thickness of about 1-2μm.

[0048] The implementation principle of this embodiment is: by selecting advanced nano silver copper alloy and modified high-performance polymer materials, the performance indicators of the connector, especially the conductivity and durability, are greatly improved. At the same time, through the innovative spiral guide design and anti-oxidation coating, the use experience of the connector is improved, so that it can perform well in various working environments and meet the needs of high-end electronic equipment.

[0049] Embodiment 4: The difference between this embodiment and the above embodiment is that a temperature sensor and a humidity sensor are integrated on the rubber core 1 of the connector to monitor the working environment of the connector in real time. The data of the temperature sensor and the humidity sensor can be transmitted to the central control unit through the wireless communication module to realize remote monitoring and fault warning. This design is particularly suitable for occasions such as data centers and server rooms where strict control of environmental conditions is required, and potential safety hazards can be discovered and eliminated in a timely manner.

[0050] Specifically, the temperature sensor and humidity sensor are integrated on the side of the rubber core 1 and connected to the built-in microprocessor through tiny leads. The microprocessor is responsible for collecting and processing sensor data and sending the data to the central control unit through wireless communication protocols such as Bluetooth or Wi-Fi. An antenna window is reserved on the back cover 3 to ensure good transmission of wireless signals.

[0051] In addition, in order to further improve the heat dissipation performance of the connector, a heat sink is added to the back of the rubber core 1 in this embodiment. The heat sink is made of aluminum alloy material, which has good thermal conductivity and can quickly conduct heat away to prevent the connector from overheating. The heat sink has a large surface area, which can effectively increase air circulation and accelerate heat dissipation. The heat sink is designed with a fin structure, and the height and spacing of each fin are carefully calculated to achieve the best heat dissipation effect.

[0052] The implementation principle of this embodiment is: by integrating temperature sensors and humidity sensors, real-time monitoring and remote management of the connector working environment are realized, improving the safety and reliability of the system. At the same time, by adding heat sinks, the heating problem of high-power electronic equipment during long-term operation is solved, and the service life of the connector is extended. This intelligent design not only improves the technical content of the product, but also brings greater convenience and value to users.

[0053] Embodiment 5: The difference between this embodiment and the above embodiment is that a self-cleaning function is added to the terminal 2 of the connector. Specifically, a super-hydrophobic coating is coated on the surface of the terminal 2, which can make the liquid form a large contact angle on its surface, so that it can automatically roll off and take away dirt and impurities. This not only improves the dust and water resistance of the connector, but also reduces the maintenance frequency and prolongs the service life.

[0054] Specifically, the main component of the super-hydrophobic coating is a fluorosilane compound, which is a material with good hydrophobicity and oleophobicity. During the coating process, the terminal 2 is first immersed in a solution containing the fluorosilane compound, then taken out to dry, and finally cured at high temperature. The cured coating is about 1-2μm thick, transparent and colorless, and does not affect the appearance and conductive properties of the terminal 2.

[0055] In addition, in order to further improve the anti-seismic performance of the connector, this embodiment adds damping material inside the rubber core 1. The damping material fills the gap between the rubber core 1 and the terminal 2, which can absorb vibration energy and reduce the impact of external shock on the connector. The selection of damping material should consider its viscosity and fluidity to ensure that it can be evenly distributed throughout the connector during the injection molding process. Commonly used damping materials include silicone rubber, nitrile rubber, etc., which have good shock absorption performance and aging resistance.

[0056] In addition, in order to facilitate production and assembly, this embodiment also designs a special mold structure. The mold is divided into two parts, the upper mold and the lower mold are respectively provided with corresponding gates and runner systems to ensure that the molten plastic can be evenly injected into the mold cavity. The cooling system of the mold adopts a water cooling method, which removes the heat inside the mold through the circulating water flow, speeds up the cooling speed, and shortens the production cycle. The demoulding mechanism of the mold adopts a pneumatic device, which pushes the ejector pin through compressed air to make the finished product easily separated from the mold.

[0057] The implementation principle of this embodiment is: by coating the surface of terminal 2 with a super-hydrophobic coating, the self-cleaning function of the connector is realized, the maintenance frequency is reduced, and the service life is extended. At the same time, by adding damping materials, the anti-seismic performance of the connector is improved, so that it can still maintain stable connection performance under vibration and impact environments. This design not only improves the functionality of the product, but also improves the user experience, meeting the needs of various application scenarios.

[0058] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An electrical connector, characterized in that: The invention comprises a rubber core (1), a plurality of terminals (2) and a back cover (3), wherein the rubber core (1) is provided with a plurality of slots (11) for assembling the terminals (2), a connection port (12) is provided on one side of the rubber core (1), the connection port (12) is provided for connecting the connector to an external connector, the back cover (3) covers the top of the connection port (12), and the back cover (3) is snap-fitted with the rubber core (1) and the terminals (2); wherein the terminals (2) are made of metal with a certain elasticity, and the side walls of the terminals (2) are integrally formed with two extension portions (21) extending along the sides, the extension portions (21) are arc-shaped structures, the extension portions (21) are located inside the connection port (12), and the ends of the extension portions (21) form triangular protrusions (211) toward the inside of the connection port (12).

2. The chamfer of the triangular protrusion (211) causes elastic deformation of the external connector when it is inserted into the connection port (12), thereby achieving the functions of giving way and locking.

3. An electrical connector according to claim 1, characterized in that: The number of the triangular protrusions (211) is two, which are arranged at intervals along the direction of insertion of the external joint.

4. An electrical connector according to claim 1, characterized in that: A connecting portion (22) extends outward from the top of the terminal (2), and the connecting portion (22) is used to connect to the back cover (3). A convex strip (31) is correspondingly provided at the end of the back cover (3). The convex strip (31) has a trapezoidal cross-sectional structure, and the top end is in the shape of an arc. Correspondingly, the connecting portion (22) is located above the convex strip (31), and a groove (221) is provided on the lower surface of the connecting portion (22). The convex strip (31) and the groove (221) are tightly snap-fitted to ensure connection reliability and vibration resistance.

5. An electrical connector according to claim 4, characterized in that: The trapezoidal cross-sectional structure of the convex strip (31) strengthens the overall rigidity of the rear cover (3), and reduces stress concentration through the arc top design, while ensuring that the width of the groove (221) of the connecting portion (22) is moderate, thereby ensuring the connection strength and long-term stability of the terminal (2).

6. An electrical connector according to claim 1, characterized in that: The material of the rubber core (1) is a high-performance polyamide resin, which has excellent heat resistance and insulation properties, so as to ensure electrical isolation; the material of the terminal (2) is a beryllium bronze alloy, which has high conductivity and good fatigue life, so as to enhance the conductivity and durability.

7. An electrical connector according to claim 1, characterized in that: It also includes a positioning pin, which is fixed on one side of the rubber core (1) and is used to match the positioning hole on the external joint to improve the accuracy and reliability of the connection. The end of the positioning pin is provided with a tapered guide section to facilitate rapid alignment and insertion.

8. An electrical connector according to claim 1, characterized in that: The edge of the rear cover (3) is provided with a double-layer sealing ring, wherein the first layer of sealing ring is tightly attached to the inner edge of the connection port (12), and the second layer of sealing ring covers the outer side of the first layer of sealing ring. The double sealing design effectively prevents external dust and moisture from entering the connection port (12), thereby improving the environmental protection level.

9. An electrical connector according to claim 1, characterized in that: A limit block is provided in the slot (11) of the rubber core (1). The limit block adopts a T-shaped structure and is embedded in a groove (221) at the bottom of the slot (11) to accurately limit the position of the terminal (2) in the slot (11), thereby ensuring the stability and reliability of the terminal (2) and facilitating assembly and maintenance.

10. An electrical connector according to claim 1, characterized in that: The entrance of the connection port (12) is provided with a stepped guiding slope, the angle of each step gradually decreases, and finally transitions to a straight section. This multi-level guiding design helps to guide the external connector to smoothly enter the connection port (12), reducing friction and insertion resistance.

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