A single core connector

Abstract

The application discloses a single-core connector and relates to the technical field of connecting devices, which comprises a male connector and a female connector. The male connector is provided with a male pin. The female connector is internally provided with a sealing assembly, a piston, a reset member, a conductive member and first and second capsules. A first oil cavity is arranged in an installation cylinder assembly. The piston is in sealing cooperation with the sealing assembly. The first and second capsules are arranged outside the installation cylinder assembly. A second oil cavity is formed between the first capsule and the installation cylinder assembly. A third oil cavity is formed between the second capsule and the installation cylinder assembly. A fourth oil cavity is formed between the second capsule and the inner wall of the female connector. The first oil cavity is in communication with the third oil cavity. The second oil cavity is in communication with the fourth oil cavity. When the male pin is inserted into the female connector, the piston is pushed by the male pin and kept sealed. The discharged oil drives the second capsule to deform through the third oil cavity, and then the oil in the fourth oil cavity is squeezed to drive the first capsule to deform, so that the volume is compensated by the two capsules. Through the cascade cooperation of the two capsules, the radial size of the single body is effectively reduced, and the connection lag problem is solved.

Description

Technical Field

[0001] This invention relates to the field of connector technology, and in particular to a single-core connector. Background Technology

[0002] In underwater environments with limited space, single-core connectors are widely used. US Patent No. 7112080B2 discloses an electrical connector for underwater applications. The connector includes a male connector with at least one contact pin and a female connector with a contact module. The male and female connectors engage during use to form a watertight electrical connection between at least one contact pin and the contact module. When the male contact pin is inserted into the female connector, it pushes the female connector's contact module backward. The contact module occupies a certain volume in the chamber, causing the oil in the chamber to move towards the bladder of the female connector. The bladder expands to maintain hydraulic balance. However, in existing single-core connectors, the female connector typically has only one bladder. Since the female connector's shell size is fixed, the bladder's expansion is restricted by the shell, causing sluggish oil movement. This may limit the movement of the contact pin, thus affecting the connection between the male and female connectors. Furthermore, to ensure that the expansion of a single bladder is not restricted by the female connector's shell, the female connector's shell needs to be designed with a large radial dimension, resulting in a larger overall size for the single-core connector. Summary of the Invention

[0003] The main objective of this invention is to provide a single-core connector that addresses the technical problem in the prior art where the male and female connectors of a single-core connector experience connection delays or obstacles due to the influence of oil and bladder during connection.

[0004] To achieve the above objectives, the present invention provides a single-core connector, comprising:

[0005] A male connector includes a first body and a male pin; the first body has a first mounting cavity; the male pin is disposed within the first mounting cavity;

[0006] A female connector includes a second body, a mounting cylinder assembly, a first capsule, a second capsule, a piston, a reset component, and a conductive component. The second body has a second mounting cavity inside. The mounting cylinder assembly is disposed within the second mounting cavity. The mounting cylinder assembly has a first oil cavity and a sealing component located at the opening of the first oil cavity. The conductive component is located within the first oil cavity. The piston is axially movable within the first oil cavity and seals with the sealing component. The first capsule and the second capsule are both sleeved on the outside of the mounting cylinder assembly. A second oil cavity is formed between the first capsule and the mounting cylinder assembly, and a third oil cavity is formed between the second capsule and the first capsule. A fourth oil chamber is formed between the inner walls of the two mounting cavities; the first oil chamber is connected to the third oil chamber, and the second oil chamber is connected to the fourth oil chamber; wherein, the diameter of the male probe is adapted to the piston so that when the male probe enters the first oil chamber, it pushes the piston to move and maintains a sealed contact with the sealing assembly to finally connect electrically with the conductive element; when the male probe is inserted into the first oil chamber, the discharged oil drives the second capsule to deform via the third oil chamber, and the second capsule drives the first capsule in the second oil chamber to deform by squeezing the oil in the fourth oil chamber, and the first capsule and the second capsule jointly compensate for the volume change; the reset element is configured to drive the piston to reset when the male probe is withdrawn.

[0007] Preferably, the male connector further includes a first spring and a sliding member; the sliding member is slidably disposed on the inner wall of the first mounting cavity, and the sliding member is sleeved on the outer side of the male connector pin; the two ends of the first spring are respectively connected to the first body and the sliding member.

[0008] Preferably, the mounting cylinder assembly includes an axially arranged first insulating cylinder and a second insulating cylinder; the first insulating cylinder has a first oil cavity and a sealing assembly inside; the first insulating cylinder is fitted with a first capsule outside; the second insulating cylinder is fitted with a second capsule outside, and the second insulating cylinder has a flow hole communicating with the third oil cavity; wherein, the first insulating cylinder has a flow hole for communicating with the second oil cavity and the fourth oil cavity; the conductive element passes through the first insulating cylinder and the second insulating cylinder, and the conductive element has an oil delivery channel for communicating with the first oil cavity and the flow hole.

[0009] Preferably, the conductive component includes a first conductive cylinder and a second conductive cylinder connected axially; the first conductive cylinder is located inside the first insulating cylinder; one end of the second conductive cylinder is located inside the first insulating cylinder, and the other end of the second conductive cylinder passes through the second insulating cylinder and is used for electrical connection with an external cable; the second conductive cylinder is provided with the oil delivery channel.

[0010] Preferably, the piston can move into the first conductive cylinder; the piston is provided with a guide block, and the first conductive cylinder is provided with a guide groove that cooperates with the guide block, the guide groove extending along the axial direction of the first conductive cylinder.

[0011] Preferably, the reset element includes a second spring; the second spring is located inside the first conductive cylinder, and the two ends of the second spring are respectively connected to the piston and the second conductive cylinder.

[0012] Preferably, the second conductive cylinder is provided with a spring guide rod, and the second spring is sleeved on the outside of the spring guide rod.

[0013] Preferably, the female connector further includes a connecting cylinder fixed to the second body; the connecting cylinder is sleeved on the outside of the second capsule, and the inner wall of the connecting cylinder forms part of the inner wall of the second mounting cavity, so that the fourth oil cavity is formed between the connecting cylinder and the second capsule.

[0014] Preferably, the female connector further includes a pressure-bearing member disposed on the second body; the connecting cylinder is provided with a mounting hole for the conductive member to pass through; the outer wall of the pressure-bearing member is provided with a pressure-bearing block, one end of the pressure-bearing member extends into the mounting hole and the pressure-bearing block abuts against the shaft end of the connecting cylinder; the pressure-bearing member is provided with a conductive structure inside, one end of the conductive structure is used to connect with the conductive member, and the other end of the conductive structure is used to connect with an external cable.

[0015] Preferably, the sealing assembly includes a first sealing ring and a second sealing ring, the first sealing ring being located at the opening of the first oil cavity, and the second sealing ring being located inside the first oil cavity; both the first sealing ring and the second sealing ring are provided with two sealing lips.

[0016] Compared with the prior art, the present invention has at least the following advantages and beneficial effects:

[0017] This invention proposes a single-core connector. When the male and female connectors are mated, the male pin enters the first oil chamber, pushing the piston into the first oil chamber. Simultaneously, the male pin maintains a sealed contact with the sealing assembly to prevent external water from entering the first oil chamber. As the volume of the male pin entering the first oil chamber increases, the oil in the first oil chamber is discharged into the third oil chamber, driving the second capsule to expand. The expansion of the second capsule further compresses the oil in the fourth oil chamber, causing it to enter the second oil chamber and driving the first capsule to expand, thereby jointly compensating for the volume occupied by the piston movement. Due to the male pin pressing into the first oil chamber... The volume is equivalent to the sum of the volumes of the first and second capsules when they expand together. Compared to connectors with only one capsule in the prior art, the radial change in either the first or second capsule is relatively small, allowing the radial dimension of the single-core connector to be reduced for use in confined spaces. When the male connector is pulled out from the female connector, the male pin gradually withdraws from the first oil chamber, the oil in the third oil chamber flows back to the first oil chamber, and the oil in the second oil chamber flows back to the fourth oil chamber. Both the first and second capsules contract. Simultaneously, the reset element drives the piston to reset, restoring the oil in the first oil chamber to its initial volume. The dual-capsule collaborative operation of this invention ensures smoother oil flow in the first, second, third, and fourth oil chambers, avoiding connection delays caused by the limited expansion of a single capsule. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a single-core connector according to an embodiment of the present invention;

[0020] Figure 2 This is a cross-sectional view of the male connector according to an embodiment of the present invention;

[0021] Figure 3 This is a cross-sectional view of the female connector according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the female connector shaft end according to an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the female connector at the mounting block position according to an embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the female connector at the pressure-bearing component position according to an embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the structure of the guide block and guide groove according to an embodiment of the present invention;

[0026] Figure 8 This is a schematic diagram of the structure of the first insulating cylinder in an embodiment of the present invention.

[0027] Icons: 1. Male connector; 11. First body; 12. Male pin; 13. First spring; 141. Slide plate; 142. Sealing ring; 2. Female connector; 21. Second body; 211. First housing; 212. Second housing; 213. Third housing; 221. First insulating cylinder; 2211. Flow hole; 2212. Mounting block; 222. Second insulating cylinder; 2221. Flow hole; 23. First capsule; 24. Second capsule ; 25. Piston; 251. Guide block; 252. Receiving groove; 26. Reset component; 271. First conductive cylinder; 2711. Conductive ring; 2712. Guide groove; 272. Second conductive cylinder; 2721. Oil delivery channel; 2722. Spring guide rod; 281. First sealing ring; 282. Second sealing ring; 29. ​​Connecting cylinder; 210. Pressure bearing component; 2101. Pressure bearing block; 2102. Conductive structure; 2103. Sealing sleeve. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0029] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0030] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0032] Example

[0033] refer to Figures 1-8 A single-core connector, comprising:

[0034] The male connector 1 includes a first body 11 and a male pin 12; the first body 11 is provided with a first mounting cavity; the male pin 12 is disposed in the first mounting cavity;

[0035] The female connector 2 includes a second body 21, a mounting cylinder assembly, a first capsule 23, a second capsule 24, a piston 25, a reset component 26, and a conductive component. The second body 21 has a second mounting cavity inside. The mounting cylinder assembly is disposed within the second mounting cavity. The mounting cylinder assembly has a first oil cavity and a sealing component located at the opening of the first oil cavity. The conductive component is located within the first oil cavity. The piston 25 is axially movable within the first oil cavity and seals with the sealing component. The first capsule 23 and the second capsule 24 are both sleeved on the outside of the mounting cylinder assembly. The first capsule 23 and the mounting cylinder assembly form a second oil cavity, and the second capsule 24 and the mounting cylinder assembly form a third oil cavity. The second capsule 24 and the second mounting cavity... A fourth oil cavity is formed between the inner walls; the first oil cavity is connected to the third oil cavity, and the second oil cavity is connected to the fourth oil cavity; wherein, the diameter of the male pin 12 is adapted to that of the piston 25 so that when the male pin 12 enters the first oil cavity, it pushes the piston 25 to move and maintains a sealed contact with the sealing assembly to finally make an electrical connection with the conductive element; when the male pin 12 is inserted into the first oil cavity, the discharged oil drives the second capsule 24 to deform through the third oil cavity, and the second capsule 24 drives the first capsule 23 in the second oil cavity to deform by squeezing the oil in the fourth oil cavity, and the first capsule 23 and the second capsule 24 jointly compensate for the volume change; the reset member 26 is configured to drive the piston 25 to reset when the male pin 12 is withdrawn.

[0036] The male connector 1 includes a first body 11 and a male pin 12. The first body 11 has a first mounting cavity, and the male pin 12 is fixedly disposed in the first mounting cavity for insertion and mating with the female connector 2. The first mounting cavity can be sleeved on the outside of the second body 21, and the male pin 12 can enter the first oil cavity from the opening of the first oil cavity. Before the male connector 1 and the female connector 2 are connected, a part of the piston 25 is in sealing contact with the sealing assembly, and the other part of the piston 25 extends into the first oil cavity. When the male connector 1 and the female connector 2 are mated, the male pin 12 enters the first oil cavity, pushing the piston 25 to move into the first oil cavity. At the same time, the male pin 12 maintains sealing contact with the sealing assembly to prevent external water from entering the first oil cavity. As the volume of the male pin 12 entering the first oil cavity increases, the oil in the first oil cavity is discharged into the third oil cavity, driving the second capsule 24 to expand. The expansion of the second capsule 24 further compresses the oil in the fourth oil cavity, causing it to enter the second oil cavity, driving... The first capsule 23 expands, thereby compensating for the volume occupied by the movement of the piston 25. Since the volume of the male pin 12 pressed into the first oil cavity is equivalent to the sum of the volumes of the expansion of the first capsule 23 and the second capsule 24, compared with the connector with only one capsule in the prior art, the radial change dimension of either the first capsule 23 or the second capsule 24 will be relatively small, so that the radial dimension of the single-core connector can be reduced for use in narrow scenarios. When the male connector 1 is pulled out from the female connector 2, the male pin 12 gradually withdraws from the first oil cavity, the oil in the third oil cavity flows back to the first oil cavity, and the oil in the second oil cavity flows back to the fourth oil cavity. The first capsule 23 and the second capsule 24 will both contract. At the same time, the reset member 26 can drive the piston 25 to reset, that is, the reset member 26 drives the piston 25 to move towards the outside of the first oil cavity, so that the piston 25 finally moves to the position it was in before the male connector 1 and the female connector 2 were connected. At this time, the oil in the first oil cavity returns to its initial volume. The dual capsules of this invention work together to ensure a more stable flow of oil in the first, second, third, and fourth oil chambers, avoiding connection delays caused by the limited expansion of a single capsule.

[0037] It should be noted that since male connector 1 and female connector 2 are fixed on the two end devices respectively, when they need to be connected, the two end devices will connect to the port to perform the connection. After male connector 1 and female connector 2 are connected, they will not be separated from each other under the action of the two end devices. When the connector needs to be removed, it is only necessary to control the two end devices to move away from each other, so that male connector 1 can be separated from female connector 2.

[0038] The male connector 1 also includes a first spring 13 and a sliding member; the sliding member is slidably disposed on the inner wall of the first mounting cavity, and the sliding member is sleeved on the outside of the male connector pin 12; the two ends of the first spring 13 are respectively connected to the first body 11 and the sliding member. The sliding member is slidably disposed on the inner wall of the first mounting cavity, and the sliding member is sleeved on the outside of the male connector pin 12, that is, the male connector pin 12 passes through the through hole in the middle of the sliding member. The sliding member can move axially in the first mounting cavity, which is used to guide the second body 21 of the female connector 2 to be inserted when the male connector 1 is mated with the female connector 2, and plays a preliminary sealing and sand and water drainage auxiliary role. In addition, the sliding member can prevent large debris from entering the interior of the first mounting cavity.

[0039] The two ends of the first spring 13 are connected to the first body 11 and the sliding member, respectively. The first spring 13 is always in a pre-compressed state, providing an outward thrust to the sliding member. The first body 11 is provided with a limiting structure to prevent the sliding member from disengaging from the first mounting cavity. When the male connector 1 and the female connector 2 are connected, the second body 21 of the female connector 2 first abuts against the sliding member, compressing the first spring 13 and causing the sliding member to move into the first mounting cavity. When the male connector 1 is pulled out, the first spring 13 releases its elastic force, pushing the sliding member to reset and scraping away any mud or water that may be attached to the surface of the male connector pin 12.

[0040] In this embodiment, the sliding member includes a sliding plate 141 and a sealing ring 142. The sliding plate 141 is slidably disposed on the first body 11, and the first spring 13 is connected to the sliding plate 141; the sealing ring 142 is sleeved on the outside of the male pin 12.

[0041] The mounting cylinder assembly includes an axially arranged first insulating cylinder 221 and a second insulating cylinder 222; the first insulating cylinder 221 has a first oil chamber and a sealing assembly inside; a first capsule 23 is fitted outside the first insulating cylinder 221; a second capsule 24 is fitted outside the second insulating cylinder 222, and the second insulating cylinder 222 has a flow hole 2221 communicating with a third oil chamber; wherein, the first insulating cylinder 221 has a flow hole 2211 for connecting the second oil chamber and the fourth oil chamber; a conductive element passes through the first insulating cylinder 221 and the second insulating cylinder 222, and the conductive element has an oil delivery channel 2721 for connecting the first oil chamber and the flow hole 2221.

[0042] The first insulating cylinder 221 and the second insulating cylinder 222 can be made of high-strength insulating materials, such as polyetheretherketone or ceramic, so that the first insulating cylinder 221 and the second insulating cylinder 222 have high structural strength and electrical isolation function.

[0043] In this embodiment, a mounting block 2212 may be provided at the end of the first insulating cylinder 221 away from the piston 25. The mounting block 2212 may have a radially extending threaded hole. A bolt passes through the second body 21 and is threadedly connected to the first insulating cylinder 221, thereby fixing the first insulating cylinder 221 to the second body 21. The end of the first capsule 23 near the mounting block 2212 may be clamped between the mounting block 2212 and the second body 21, thereby completing the fixation of the first capsule 23. A rubber ring may be provided between the first capsule 23 and the mounting block 2212 to improve the sealing performance of the second oil chamber.

[0044] Mounting block 2212 is provided with an axially extending flow hole 2211 for connecting the second oil chamber and the fourth oil chamber.

[0045] When the piston 25 is pushed in by the male pin 12, the oil in the first oil chamber enters the oil channel 2721 in the conductive component, flows through the oil channel 2721 into the flow hole 2221, and then enters the third oil chamber, pushing the second capsule 24 to expand; after the second capsule 24 expands, it squeezes the fourth oil chamber, and the oil in the fourth oil chamber enters the second oil chamber through the flow hole 2211 on the first insulating cylinder 221, pushing the first capsule 23 to expand.

[0046] In this embodiment, the second insulating cylinder 222 can be cylindrical and is sleeved on the outside of the second conductive cylinder 272. Both the mounting block 2212 and the connecting cylinder 29 can be provided with snap-fit ​​grooves that mate with the second insulating cylinder 222. The shaft ends of the second insulating cylinder 222 and the second capsule 24 are simultaneously inserted into the snap-fit ​​grooves, so that the sidewall of the snap-fit ​​groove and the second insulating cylinder 222 clamp the second capsule 24 in the middle, thereby completing the installation and fixation of the second capsule 24. A sealing strip can be provided at the connection between the second capsule 24 and the second insulating cylinder 222 to improve the sealing performance of the third oil chamber.

[0047] In this embodiment, the end of the first capsule 23 near the piston 25 can be sleeved on the shaft end of the first insulating cylinder 221 and form part of the sealing assembly, namely the first sealing ring 281. The first capsule 23 and the first sealing ring 281 can be integrally formed.

[0048] The conductive component includes a first conductive cylinder 271 and a second conductive cylinder 272 connected axially; the first conductive cylinder 271 is located inside the first insulating cylinder 221; one end of the second conductive cylinder 272 is located inside the first insulating cylinder 221, and the other end of the second conductive cylinder 272 passes through the second insulating cylinder 222 and is used for electrical connection with an external cable; the second conductive cylinder 272 is provided with an oil delivery channel 2721.

[0049] The first conductive cylinder 271 is located inside the first insulating cylinder 221, and the two together constitute the front section of the mounting cylinder assembly. The inner hole of the first conductive cylinder 271 is larger than the outer diameter of the piston 25. In this embodiment, a conductive ring 2711 is provided at one end of the first conductive cylinder 271 near the sealing assembly. The conductive ring 2711 is used to contact the male pin 12 after it is inserted into the first conductive cylinder 271, thereby realizing electrical connection.

[0050] One end of the second conductive cylinder 272 is located inside the first insulating cylinder 221 and connected to the first conductive cylinder 271. The other end of the second conductive cylinder 272 passes through the second insulating cylinder 222 and is used for electrical connection with an external cable. Both the first conductive cylinder 271 and the second conductive cylinder 272 can be made of copper alloy material with high conductivity, and the surface can be plated with gold or silver to improve conductivity and corrosion resistance.

[0051] The second conductive cylinder 272 has an internal oil delivery channel 2721, which extends axially. One end of the channel communicates with the first oil chamber, and the other end communicates with the flow-through hole 2221 on the second insulating cylinder 222 through an opening on the second conductive cylinder 272. The first conductive cylinder 271 and the second conductive cylinder 272 can be fixed by threaded connection or plug-in connection, and a sealing strip can be installed at the connection to prevent oil leakage. The first conductive cylinder 271 and the second conductive cylinder 272 are separate conductive components, which facilitates processing and assembly, and also allows for the selection of conductive cylinders of different sizes according to different current specifications, improving the versatility and scalability of the product.

[0052] The piston 25 can move into the first conductive cylinder 271; the piston 25 is provided with a guide block 251, and the first conductive cylinder 271 is provided with a guide groove 2712 that cooperates with the guide block 251, and the guide groove 2712 extends along the axial direction of the first conductive cylinder 271.

[0053] The cooperation between the guide block 251 and the guide groove 2712 prevents the piston 25 from circumferentially deflecting during movement, ensuring a high degree of coaxiality between the piston 25 and the first conductive cylinder 271. In addition, it also prevents the piston 25 from getting stuck on the inner wall of the first conductive cylinder 271 during movement, improving the smoothness of the insertion process.

[0054] The number of guide blocks 251 can be four, evenly distributed along the circumference of the piston 25, and the number of guide grooves 2712 corresponds to the number of guide blocks 251. The length of the guide grooves 2712 can be set as needed to limit the maximum movement distance of the piston 25 and prevent the piston 25 from over-compressing the second spring.

[0055] The reset component 26 includes a second spring; the second spring is located inside the first conductive cylinder 271, and the two ends of the second spring are respectively connected to the piston 25 and the second conductive cylinder 272.

[0056] When the male pin 12 pushes the piston 25, the piston 25 compresses the second spring, causing the second spring to store elastic potential energy; when the male pin 12 is pulled out of the first oil chamber, the second spring releases its elastic force, pushing the piston 25 back to its initial position, and at the same time reversing the flow of the oil in the first oil chamber through the discharge path, so that the first capsule 23 and the second capsule 24 return to their contracted state.

[0057] In this embodiment, the second spring may be made of stainless steel or corrosion-resistant alloy material, and its stiffness is designed to match the stroke of piston 25 and the required restoring force.

[0058] A receiving groove 252 can be provided at one end of the piston 25 near the second spring. One end of the second spring extends into the receiving groove 252 and abuts against the bottom of the groove, while the other end abuts against the shaft end of the second conductive cylinder 272, so that the spring is subjected to uniform force during compression and reset.

[0059] The second conductive cylinder 272 is provided with a spring guide rod 2722, and the second spring is sleeved on the outside of the spring guide rod 2722.

[0060] The spring guide rod 2722 extends axially, and its length is less than or equal to the length of the second spring in its fully compressed state, so that the spring guide rod 2722 does not interfere with the movement of the piston 25. The function of the spring guide rod 2722 is to guide the second spring and prevent the second spring from radially bending or shifting during compression and reset, so that the piston 25 moves relatively straight and stably.

[0061] In this embodiment, a buffer pad may be provided at the end of the spring guide rod 2722 to contact the piston 25 when the piston 25 moves to the limit position, absorb impact energy, and reduce noise and vibration.

[0062] The female connector 2 also includes a connecting cylinder 29 fixed to the second body 21; the connecting cylinder 29 is sleeved on the outside of the second capsule 24, and the inner wall of the connecting cylinder 29 constitutes part of the inner wall of the second mounting cavity, so that a fourth oil cavity is formed between the connecting cylinder 29 and the second capsule 24.

[0063] In this embodiment, the connecting cylinder 29 can be made of insulating material, giving it good structural strength and corrosion resistance. One end of the connecting cylinder 29 can be clamped between the mounting block 2212 and the second body 21. A sealing strip can also be provided between the connecting cylinder 29 and the mounting block 2212 to improve the sealing of the fourth oil chamber. The end of the connecting cylinder 29 away from the first insulating cylinder 221 can be connected to the second body 21 by plug-in or threaded connection.

[0064] The inner wall of the connecting cylinder 29 is a smooth cylindrical surface to reduce the frictional resistance to the expansion and contraction of the second capsule 24. When the second capsule 24 expands, the connecting cylinder 29 restricts its excessive radial expansion, so that its volume change is mainly reflected in the coordinated deformation of the axial and radial directions, thereby ensuring that the oil in the fourth oil cavity can be smoothly squeezed into the second oil cavity. The setting of the connecting cylinder 29 makes the boundary of the fourth oil cavity clear, which is convenient for processing and controlling the volume of the oil cavity, and also provides additional structural support for the female connector 2.

[0065] The female connector 2 also includes a pressure-bearing member 210 disposed on the second body 21; the connecting cylinder 29 is provided with a mounting hole for the conductive member to pass through; the outer wall of the pressure-bearing member 210 is provided with a pressure-bearing block 2101, one end of the pressure-bearing member 210 extends into the mounting hole and the pressure-bearing block 2101 abuts against the shaft end of the connecting cylinder 29; the pressure-bearing member 210 is provided with a conductive structure 2102 inside, one end of the conductive structure 2102 is used to connect with the conductive member, and the other end of the conductive structure 2102 is used to connect with an external cable.

[0066] The pressure-bearing component 210 can be made of high-strength insulating material, and its internal conductive structure 2102 can be a metal conductor rod or conductor sleeve, which can achieve electrical conduction with the conductive component through plug-in or threaded connection. A sealing sleeve 2103 can be installed on the outside of the pressure-bearing component 210 to improve the sealing between the pressure-bearing component 210 and the second body 21.

[0067] In this embodiment, the second main body 21 may include a first housing 211, a second housing 212, and a third housing 213 connected axially in sequence. The first housing 211, the second housing 212, and the third housing 213 can be connected by a threaded connection. The pressure-bearing component 210 can be fixed on the second housing 212, and a static sealing structure, namely a sealing sleeve 2103, is provided between the pressure-bearing component 210 and the second housing 212 to ensure the sealing reliability of the rear end of the female connector 2. The connecting cylinder 29 can be installed on the first housing 211, and the external cable is installed on the third housing 213. When the conductive structure 2102 on the pressure-bearing component 210 is connected to the conductive component and the external cable respectively, the second housing 212 can be connected to the first housing 211 and the third housing 213 respectively. This structure makes the installation and replacement of the cable more convenient, eliminating the need for on-site welding operations and reducing installation difficulty and maintenance costs.

[0068] The sealing assembly includes a first sealing ring 281 and a second sealing ring 282. The first sealing ring 281 is located at the opening of the first oil cavity, and the second sealing ring 282 is located inside the first oil cavity. Both the first sealing ring 281 and the second sealing ring 282 are provided with two sealing lips to form a double sealing structure.

[0069] Both the first sealing ring 281 and the second sealing ring 282 can be made of oil-resistant and corrosion-resistant elastic materials, such as fluororubber or nitrile rubber. The double sealing rings significantly improve the sealing reliability of the first oil cavity. Even if one sealing lip wears or ages, the remaining sealing lips can still maintain an effective seal, preventing oil leakage or external water ingress.

[0070] When the male pin 12 is inserted, it passes through the first sealing ring 281 and the second sealing ring 282 in sequence. Due to the elasticity of the sealing rings, an effective seal can be formed between the male pin 12 and the sealing rings, preventing water from entering the first oil chamber during the insertion process. This double-sealing structure is particularly suitable for deep-sea high-pressure environments and can maintain reliable sealing performance for a long time.

[0071] In this embodiment, the second body 21 is provided with a plurality of radial through holes at the part corresponding to the first capsule 23. When the first capsule 23 expands, the water between the first capsule 23 and the second body 21 can be squeezed out through the radial through holes.

[0072] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A single-core connector, characterized in that, include: A male connector includes a first body and a male pin; the first body has a first mounting cavity; the male pin is disposed within the first mounting cavity; A female connector includes a second body, a mounting cylinder assembly, a first capsule, a second capsule, a piston, a reset component, and a conductive component. The second body has a second mounting cavity inside. The mounting cylinder assembly is disposed within the second mounting cavity. The mounting cylinder assembly has a first oil cavity and a sealing component located at the opening of the first oil cavity. The conductive component is located within the first oil cavity. The piston is axially movable within the first oil cavity and seals with the sealing component. The first capsule and the second capsule are both sleeved on the outside of the mounting cylinder assembly. A second oil cavity is formed between the first capsule and the mounting cylinder assembly, and a third oil cavity is formed between the second capsule and the second... A fourth oil chamber is formed between the inner walls of the mounting cavity; the first oil chamber is connected to the third oil chamber, and the second oil chamber is connected to the fourth oil chamber; wherein, the diameter of the male probe is adapted to the piston so that when the male probe enters the first oil chamber, it pushes the piston to move and maintains a sealed contact with the sealing assembly to finally connect electrically with the conductive element; when the male probe is inserted into the first oil chamber, the discharged oil drives the second capsule to deform via the third oil chamber, and the second capsule drives the first capsule in the second oil chamber to deform by squeezing the oil in the fourth oil chamber, and the first capsule and the second capsule jointly compensate for the volume change; the reset element is configured to drive the piston to reset when the male probe is withdrawn.

2. The single-core connector as described in claim 1, characterized in that, The male connector also includes a first spring and a sliding member; the sliding member is slidably disposed on the inner wall of the first mounting cavity, and the sliding member is sleeved on the outside of the male connector pin; the two ends of the first spring are respectively connected to the first body and the sliding member.

3. The single-core connector as described in claim 1, characterized in that, The mounting cylinder assembly includes a first insulating cylinder and a second insulating cylinder arranged axially; the first insulating cylinder has a first oil cavity and a sealing assembly inside; the first insulating cylinder is fitted with a first capsule outside; the second insulating cylinder is fitted with a second capsule outside, and the second insulating cylinder has a flow hole communicating with the third oil cavity; wherein, the first insulating cylinder has a flow hole for communicating with the second oil cavity and the fourth oil cavity; the conductive element passes through the first insulating cylinder and the second insulating cylinder, and the conductive element has an oil delivery channel for communicating with the first oil cavity and the flow hole.

4. The single-core connector as described in claim 3, characterized in that, The conductive component includes a first conductive cylinder and a second conductive cylinder connected axially; the first conductive cylinder is located inside the first insulating cylinder; one end of the second conductive cylinder is located inside the first insulating cylinder, and the other end of the second conductive cylinder passes through the second insulating cylinder and is used for electrical connection with an external cable; the second conductive cylinder is provided with the oil delivery channel.

5. The single-core connector as described in claim 4, characterized in that, The piston can move into the first conductive cylinder; the piston is provided with a guide block, and the first conductive cylinder is provided with a guide groove that cooperates with the guide block, the guide groove extending along the axial direction of the first conductive cylinder.

6. The single-core connector as described in claim 4, characterized in that, The reset component includes a second spring; the second spring is located inside the first conductive cylinder, and the two ends of the second spring are respectively connected to the piston and the second conductive cylinder.

7. The single-core connector as described in claim 6, characterized in that, The second conductive cylinder is provided with a spring guide rod, and the second spring is sleeved on the outside of the spring guide rod.

8. The single-core connector as described in claim 3, characterized in that, The female connector also includes a connecting cylinder fixed to the second body; the connecting cylinder is sleeved on the outside of the second capsule, and the inner wall of the connecting cylinder forms part of the inner wall of the second mounting cavity, so that the fourth oil cavity is formed between the connecting cylinder and the second capsule.

9. The single-core connector as described in claim 8, characterized in that, The female connector also includes a pressure-bearing component disposed on the second main body; the connecting cylinder is provided with a mounting hole for the conductive component to pass through; the outer wall of the pressure-bearing component is provided with a pressure-bearing block, one end of the pressure-bearing component extends into the mounting hole and the pressure-bearing block abuts against the shaft end of the connecting cylinder; the pressure-bearing component is provided with a conductive structure inside, one end of the conductive structure is used to connect with the conductive component, and the other end of the conductive structure is used to connect with an external cable.

10. The single-core connector as described in claim 1, characterized in that, The sealing assembly includes a first sealing ring and a second sealing ring. The first sealing ring is located at the opening of the first oil cavity, and the second sealing ring is located inside the first oil cavity. Both the first sealing ring and the second sealing ring are provided with two sealing lips.

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