Connector cable assembly
By installing clamp assemblies on the outside of organic cables, the problems of easy breakage and moisture absorption at the weld joints of mineral cables are solved, achieving stable electrical connection and sealing performance in harsh environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-04-07
AI Technical Summary
In existing technologies, the weld joints of mineral cables are prone to breakage, and moisture absorption can lead to a decrease in insulation performance.
An organic cable is fitted with a clamp assembly on the outside, including clamping parts, cable clamps and connectors. The organic cable is fixed to the plug assembly by welding, ensuring that the welding points are not damaged during dragging and maintaining good electrical connection and sealing performance in harsh environments.
It effectively prevents the welding points of organic cables and plug assemblies from shaking and abrasion, maintains the stability and sealing of electrical connections, adapts to cables of different diameters, and improves reliability and durability.
Smart Images

Figure CN224097057U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connector technology, and in particular to a connector cable assembly. Background Technology
[0002] The third-generation nuclear power plant 1E-class connector cable assembly is a product that can complete reactor emergency shutdown, containment isolation, core emergency cooling, reactor residual heat removal, reactor building residual heat removal, and prevent the release of radioactive materials into the surrounding environment. It is an electrical penetration component that connects detector components, transmission cables, connecting plates, and containment outside the reactor containment vessel and pressure vessel of a nuclear power plant. It is mainly used to transmit weak current signals and weak voltage signals.
[0003] The prior art publication number CN110380252A discloses "a K1 type electrical connector for mineral-insulated cables used in nuclear power plants," which includes a cable assembly and plugs and sockets that are inserted into both ends of the cable assembly. The cable assembly includes a mineral cable, a stainless steel corrugated tube, a positioning plate for fixing the mineral cable, and a stainless steel tube welded to the positioning plate. Both ends of the stainless steel corrugated tube are connected to end sleeves. The stainless steel tube and end sleeves are located on both sides of the positioning plate, and the positioning plate is welded to the end sleeves. Both ends of the mineral cable pass through the end sleeves and the positioning plate in sequence. The positioning plate is welded to the outer sheath of the mineral cable. The stainless steel tube is provided with a potting area and an adapter socket contact fixed in the potting area. The adapter socket contact is a double-ended socket structure. One end is fixed to the potting area and electrically connected to the core wire of the mineral cable through a bare wire. The other end is located outside the potting area and is used for insertion into a plug or socket.
[0004] The aforementioned application mentions that the two ends of the mineral cable pass through two end sleeves and then through a positioning plate welded to the end sleeves. The positioning plate is then welded to the outer sheath of the mineral cable using laser welding to fix the mineral cable relative to the positioning plate. However, this fixing method can easily cause the welding point between the mineral cable and the positioning plate to break when the mineral cable is dragged during use, resulting in electrical connection failure. Moreover, the mineral cable selected in the aforementioned application also poses a risk of moisture absorption leading to a decrease in insulation performance. Utility Model Content
[0005] The purpose of this invention is to provide a connector cable assembly. By setting a clamp assembly on the outside of the organic cable and fixing the clamp assembly to the plug assembly and the corrugated tube respectively, the organic cable and the plug assembly can move synchronously when the cable assembly is dragged, thus achieving the effect of not damaging the core wire inside the organic cable and the soldering point at the rear end of the plug assembly during the dragging process.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a connector cable assembly, comprising a plug cable and a plug assembly connected to the end of the plug cable. The plug cable includes an organic cable, a first corrugated tube wrapped around the outside of the organic cable, and a first wire clamp assembly for fixing the organic cable. The first wire clamp assembly includes a clamping member, a cable clamp, and a first connecting member. The organic cable passes through the clamping member, the cable clamp, and the first connecting member in sequence, and the core wire inside the organic cable is welded to the rear end of the plug assembly. One end of the first connecting member is connected to the plug assembly, and the other end of the first connecting member is welded to the cable clamp. One end of the clamping member is welded to the first corrugated tube, and the other end of the clamping member is sleeved on the outside of the cable clamp and welded to the outer periphery of the first connecting member. The inner wall of the clamping member presses against the cable clamp inward, so that the cable clamp is clamped to the outside of the organic cable.
[0007] After adopting the above technical solution, this utility model has the following advantages: The organic cable is wrapped with a first corrugated tube for protection and to prevent the organic cable from contacting the outside world, and a first clamp assembly for fixing the organic cable. The first clamp assembly includes a cable clamp, a clamping member, and a first connecting member. One end of the first connecting member is connected to the plug assembly, and the other end is welded to the cable clamp, so that the cable clamp and the plug assembly are stably connected. The cable clamp directly clamps the organic cable, and then the clamping member is sleeved on the outside of the cable clamp so that its inner wall presses against the cable clamp to clamp the organic cable, so that the organic cable is firmly fixed in the cable clamp, thereby preventing the organic cable from shaking at the welding point at the rear end of the plug assembly 2 and preventing the welding point at the rear end of the organic cable and the plug assembly 2 from breaking. Among them, one end of the clamping member is welded to the first corrugated tube, so that the first corrugated tube is fixed to the first clamp assembly and the connection is sealed. In this way, when the user drags the plug cable, the organic cable in the first corrugated tube is protected. The cable can be dragged synchronously. During the dragging process, not only can the core wires inside the organic cable and the welding points at the rear end of the plug assembly be better protected, but the organic cable can also be better protected inside the first corrugated tube to avoid wear on the organic cable during dragging. The other end of the clamping member is welded to the outer periphery of the first connector, which not only provides additional fixation for the cable clamp, but also ensures that the cable clamp can stably clamp the organic cable, preventing the organic cable from loosening inside the cable clamp during the construction personnel dragging the plug cable. This also connects the first corrugated tube and the first clamp assembly to form a stable fixing structure. The installation structure of the first clamp assembly ensures that the core wires inside the organic cable and the welding points at the rear end of the plug assembly will not be damaged or broken during the construction personnel dragging the plug cable, which would lead to poor contact and functional failure. In addition, this installation method also ensures that the plug cable can maintain good electrical connection and sealing performance even in harsh environments.
[0008] Furthermore, the cable clamp includes multiple cantilever arms evenly distributed circumferentially, the outer circumferential surface of the rear end of the cantilever arm having a first inclined surface that converges toward the organic cable, and the inner surface of the clamping member having a second inclined surface, the first inclined surface abutting against the second inclined surface to clamp the rear end of the cantilever arm with the organic cable.
[0009] To achieve a uniform distribution of clamping force on the organic cable using the aforementioned technical solution, the cable clamp is equipped with multiple circumferentially distributed cantilever arms. These cantilever arms possess a certain degree of elasticity, allowing them to expand when the cable passes through, accommodating organic cables of different diameters and quantities. This structural design makes its use more flexible. A first inclined surface, converging towards the organic cable, is provided on the outer circumferential surface of the rear end of each cantilever arm; a second inclined surface is provided on the inner surface of the clamping member. When the cable passes through the cable clamp, the cantilever arms expand to accommodate the cable diameter. Then, the clamping member is gradually fitted onto the outside of the cable clamp. As the clamping member slides, the second inclined surface slides along the first inclined surface, pushing the rear end of the cantilever arm closer to the cable, gradually increasing the clamping force until the first and second inclined surfaces abut against each other, at which point the cable clamp clamps the organic cable. Through the cooperation between the clamping member and the cable clamp, and the interaction between the first and second inclined surfaces, the cable clamp can maintain a clamped state even without external force, thereby improving the reliability of the entire first cable clamp assembly.
[0010] Furthermore, the plug assembly includes a plug housing and a connecting screw sleeve. The rear end of the plug housing is welded to the front end of the first connector. The first connector is provided with a groove that is recessed relative to the plug housing. The connecting screw sleeve is sleeved on the outside of the plug housing, and the tail end of the connecting screw sleeve is provided with a slip ring that allows the connecting screw sleeve to slide against the groove.
[0011] Using the aforementioned technical solution, the first connector is fixed to the rear end of the plug housing by welding. The first connector has a groove that is recessed relative to the plug housing. The connecting screw sleeve is fitted on the outside of the plug housing to shield and protect the plug housing. The tail end of the connecting screw sleeve has a slip ring that allows the connecting screw sleeve to slide relative to the groove. Through the cooperation of the slip ring and the groove, the connecting screw sleeve can slide axially on the first connector. Since the core wire inside the organic cable needs to be welded to the rear end of the plug assembly, the connecting screw sleeve is slid backward along the first connector to expose the rear end of the plug housing, which allows the core wire inside the organic cable to be welded to the rear end of the plug assembly. After welding, the connecting screw sleeve is slid forward along the first connector until the plug housing is completely shielded. In this way, not only is the plug housing protected, but the organic cable is also prevented from being unable to retract into the connecting screw sleeve when welding to the plug housing. This meets the requirements of high temperature and high radiation conditions and is easy to operate. Furthermore, the cooperation between the slip ring and the slip groove makes it difficult for the connecting threaded sleeve and the first connecting member to separate and also plays a guiding role, which helps to improve the connection stability between the first connecting member and the connecting threaded sleeve.
[0012] Furthermore, the length of the groove is not less than the length of the connecting threaded sleeve.
[0013] By adopting the aforementioned technical solution, the distance by which the connecting screw sleeve slides backward is such that the entire rear end of the plug housing can be fully exposed to the outside with sufficient space to facilitate the welding of the core wires inside the cable to the rear end of the plug assembly.
[0014] Furthermore, the plug housing has a through cavity running from front to back. Inside the cavity, an insulator assembly, a retaining ring for fixing the insulator assembly to the plug housing, and a first welding part are installed in sequence. Both the first welding part and the insulator assembly have a number of insertion holes equal to the number of core wires. The core wires are welded to the first welding part, and the first welding part is filled with sealant. The plug housing has an injection hole at a position corresponding to the first welding part.
[0015] Using the aforementioned technical solution, an insulator assembly and a first welding part are installed inside the cavity of the plug housing. The insulator assembly is fixed inside the plug housing by a retaining ring. Both the first welding part and the insulator assembly are provided with a number of sockets equal to the number of core wires, so that the core wires of the organic cable are welded to the first welding part one by one with the sockets. The interior of the first welding part is filled with sealant through the glue-filling hole, which not only enhances the fixation of the core wires at the welding point of the first welding part, but also enhances the sealing at this point.
[0016] Furthermore, the connector cable assembly includes a socket cable, the socket cable includes a socket assembly, a plug assembly is used to engage with the socket assembly to transmit electrical signals, the socket assembly includes a socket housing, the inner surface of the socket housing is provided with a positioning rib, the plug housing is provided with a positioning groove adapted to the positioning rib, and the outer surface of the socket housing is provided with threads for inserting into the connecting screw sleeve and tightening to fix the two.
[0017] Using the aforementioned technical solution, the socket assembly and plug assembly are inserted to transmit electrical signals. The positioning ribs on the inner surface of the socket housing are aligned with the positioning grooves on the plug housing that are compatible with the positioning ribs. This allows for a preliminary connection between the socket housing and the plug housing, preventing inaccurate insertion of the socket assembly and plug assembly due to misalignment, which could lead to poor electrical signal transmission. At the same time, the outer surface of the socket housing is provided with threads for inserting and tightening the connecting screw sleeve to fix the two together. This threaded connection also makes it easier to disassemble and install the plug assembly and socket assembly.
[0018] Furthermore, the mating surfaces of the plug housing and the socket housing are provided with metal seals.
[0019] By adopting the aforementioned technical solution, a metal seal is provided at the mating end face where the plug housing and socket housing are connected, ensuring the sealing of the connection between the plug housing and socket housing. Even if the plug housing is accidentally soaked in water during actual use, it can be used directly after simply shaking and wiping the surface moisture off the plug housing. The metal seal prevents moisture from entering through the connection between the plug housing and socket housing, thus avoiding electrical connection failure between the plug cable and the socket cable.
[0020] Furthermore, the socket cable includes an organic cable. The socket housing contains, from front to back, a second welding part, a first insulator, and a glass sintered component. The core wire in the organic cable is welded to the front end of the second welding part. The second welding part, the first insulator, and the glass sintered component are all provided with pins equal to the number of sockets. A sealing component is installed at the rear end of the glass sintered component. When the plug housing and the socket housing are plugged in, the sealing component abuts against the plug housing.
[0021] Using the aforementioned technical solution, the core wire inside the organic cable is welded to the front end of the second welding part. The second welding part, the first insulator, and the glass sintered part are all equipped with pins equal to the number of sockets. By inserting the pins into the sockets, the electrical signal transmission between the socket cable and the plug cable is realized. The rear end of the first insulator is equipped with a glass sintered part for sealing. Since glass is an inorganic material, it has the characteristics of radiation resistance and high temperature resistance. The rear end of the glass sintered part is also equipped with a sealing element to ensure the sealing of the plug shell and the socket shell at the connection. Even if it is accidentally soaked in water during actual use, it can be used directly after shaking the plug shell dry by hand and wiping off the surface moisture. The metal sealing element prevents moisture from entering through the connection between the plug shell and the socket shell, thus avoiding the failure of the electrical connection between the plug cable and the socket cable.
[0022] Furthermore, the socket cable is sequentially installed from back to front with a socket assembly, a second connector welded to the socket assembly, a second corrugated tube welded to the second connector, a second wire clamp assembly welded to the second corrugated tube, and a sealing assembly welded to the second wire clamp assembly. The sealing assembly includes a potting component, and a sealing gasket is provided inside the potting component. The front end of the sealing gasket is filled with sealant.
[0023] Using the aforementioned technical solution, the socket assembly is installed at the end of the cable, and then the second connector is welded to the socket assembly. Next, a second corrugated tube is welded to the second connector to provide additional protection and flexibility. Then, a second clamp assembly is welded to the second corrugated tube to secure the cable. Finally, a sealing assembly is installed at the very front end of the cable, ensuring the cable's sealing and waterproofing through a combination of potting compound, sealing gasket, and sealant.
[0024] Furthermore, all of the above welding processes were laser welding. Attached Figure Description
[0025] The present invention will be further described below with reference to the accompanying drawings:
[0026] Figure 1 This is a schematic diagram of a connector cable assembly according to the present invention;
[0027] Figure 2 This is a schematic diagram illustrating the fit between the plug assembly and the socket assembly of this utility model;
[0028] Figure 3 This utility model Figure 2 Enlarged view of point A in the image;
[0029] Figure 4 This utility model Figure 1 Enlarged view of point B in the image;
[0030] Figure 5 This is a schematic diagram of the clamping component of this utility model;
[0031] Figure 6 This utility model Figure 1 Enlarged view of point C in the image;
[0032] Figure 7 This utility model Figure 1 Enlarged view of point D in the image;
[0033] Figure 8 This is a schematic diagram of the insertion of the plug assembly and socket assembly of this utility model. Detailed Implementation
[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.
[0035] The terms "first," "second," etc. (if present) in the specification and claims of this utility model are used to distinguish similar objects, not to describe a specific order or sequence. Even if "second" is used before a technical feature for distinction, it does not necessarily imply the presence of "first." It should be understood that in this utility model, "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. It should be understood that in this utility model, "multiple" refers to two or more. "And / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, X and / or Y can represent: X alone, X and Y simultaneously, and Y alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "Containing X, Y, and Z," "Containing X, Y, and Z" means that all three X, Y, and Z are included; "Containing X, Y, or Z" means that one of X, Y, and Z is included; "Containing X, Y, and / or Z" means that any one, two, or three of X, Y, and Z are included.
[0036] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be selected to be combined or substituted with each other according to the actual situation, and the same or similar concepts or processes may not be described again in some embodiments.
[0037] like Figure 1 , Figure 2 and Figure 4 As shown, this utility model provides a connector cable assembly, including a plug cable 1 and a plug assembly 2 connected to the end of the plug cable 1. The plug cable 1 includes an organic cable, a first corrugated tube 11 wrapped around the outside of the organic cable, and a first wire clamp assembly 12 for fixing the organic cable. The first wire clamp assembly 12 includes a clamping member 121, a cable clamp 122, and a first connecting member 123. The organic cable passes through the clamping member 121, the cable clamp 122, and the first connecting member 123 in sequence, and the core wire inside the organic cable is welded to the rear end of the plug assembly 2. One end of the first connecting member 123 is connected to the plug assembly 2, and the other end of the first connecting member 123 is welded to the cable clamp 122. One end of the clamping member 121 is welded to the first corrugated tube 11, and the other end of the clamping member 121 is sleeved on the outside of the cable clamp 122 and welded to the outer periphery of the first connecting member 123. The inner wall of the clamping member 121 presses against the cable clamp 122 inward, so that the cable clamp 122 clamps the outside of the organic cable.
[0038] Understandably, the organic cable is wrapped with a first corrugated tube 11 for protection and to prevent the organic cable from contacting the outside environment, and a first clamp assembly 12 for fixing the organic cable. The first clamp assembly 12 includes a cable clamp 122, a clamping member 121, and a first connector 123. One end of the first connector 123 is connected to the plug assembly 2, and the other end is welded to the cable clamp 122, so that the cable clamp 122 and the plug assembly 2 are stably connected. The cable clamp 122 directly clamps the organic cable, and then the clamping member 121 is sleeved on the cable clamp 122. The outer side of clamp 22 presses its inner wall against cable clamp 122 to clamp the organic cable, thus securing the organic cable firmly within cable clamp 122. This prevents the welded joint between the organic cable and the rear end of plug assembly 2 from shaking and avoids breakage of the welded joint. One end of clamp 121 is welded to the first corrugated tube 11, fixing the first corrugated tube 11 to the first clamp assembly 12 while ensuring a seal at the connection. This prevents the first corrugated tube 11 from slipping during the user's dragging of the plug cable 1. The organic cable inside can be dragged synchronously. During the dragging process, not only can the core wire inside the organic cable and the welding point at the rear end of the plug assembly 2 be better protected, but the organic cable can also be better protected inside the first corrugated tube 11 to avoid wear on the organic cable during dragging. The other end of the clamping member 121 is welded to the outer periphery of the first connector 123. While providing additional fixation for the cable clamp 122, it also ensures that the cable clamp 122 can stably clamp the organic cable, preventing the organic cable from loosening inside the cable clamp 122 during the process of construction personnel dragging the plug cable 1. Furthermore, it also connects the first corrugated tube 11 and the first clamp assembly 12 to form a stable fixing structure. The installation structure of the first clamp assembly 12 ensures that the core wire inside the organic cable and the welding point at the rear end of the plug assembly 2 will not be damaged or broken during the process of construction personnel dragging the plug cable 1, resulting in poor contact and functional failure. In addition, this installation method also ensures that the plug cable 1 can maintain good electrical connection and sealing performance even in harsh environments.
[0039] In this embodiment, the outer shell of the organic cable is made of PEEK insulation material, and the organic cable wrapped in the first corrugated pipe 11 is at least one.
[0040] like Figure 4 and Figure 5 As shown, the specific structure of the cable clamp 122 includes a plurality of cantilever 124 evenly distributed along the circumference. The outer circumferential surface of the rear end of the cantilever 124 has a first inclined surface 125 that converges toward the organic cable. The inner surface of the clamping member 121 has a second inclined surface 126. The first inclined surface 125 and the second inclined surface 126 abut against each other so that the rear end of the cantilever 124 clamps the organic cable.
[0041] To achieve a uniform distribution of clamping force between the cable clamp 122 and the organic cable clamp 122, the cable clamp 122 is provided with multiple circumferentially distributed cantilevers 124. These cantilevers 124 have a certain degree of elasticity, allowing them to expand when the cable passes through, accommodating organic cables of different diameters and quantities. This structural design makes it more flexible in use. A first inclined surface 125, which converges towards the organic cable, is provided on the outer circumferential surface of the rear end of the cantilevers 124. A second inclined surface 126 is provided on the inner surface of the clamping member 121. When the cable passes through the cable clamp 122, the cantilevers 124 expand to accommodate the cable diameter. Then, the clamping member 121 is gradually fitted onto the outside of the cable clamp 122. As the clamping member 121 slides, the second inclined surface 126 slides along the first inclined surface 125, pushing the rear end of the cantilevers 124 closer to the cable, gradually increasing the clamping force until the first inclined surface 125 and the second inclined surface 126 abut against each other, at which point the cable clamp 122 clamps the organic cable. Through the cooperation between the clamping member 121 and the cable clamp 122, and the interaction between the first inclined surface 125 and the second inclined surface 126, the cable clamp 122 can be kept in a clamped state even without external force, thereby improving the reliability of the entire first cable clamp assembly 12.
[0042] like Figures 1 to 3 As shown, the plug assembly 2 includes a plug housing 21 and a connecting screw sleeve 22. The rear end of the plug housing 21 is welded to the front end of the first connector 123 to fix them together (the direction described in the embodiment is consistent with the direction indicated in the figure). The first connector 123 is provided with a groove 127 that is recessed relative to the plug housing 21. The connecting screw sleeve 22 is sleeved on the outside of the plug housing 21 to cover and protect the plug housing 21. The tail end of the connecting screw sleeve 22 is provided with a slip ring 221 that allows the connecting screw sleeve 22 to slide against the groove 127. Through the cooperation of the slip ring 221 and the groove 127, the connecting screw sleeve 22 can be axially mounted on the first connector 123. The connecting sleeve 22 slides backward along the first connecting member 123 to expose the rear end of the plug housing 21, allowing the core wires of the organic cable to be welded to the rear end of the plug assembly 2. After welding, the connecting sleeve 22 slides forward along the first connecting member 123 until the plug housing 21 is completely covered. This not only protects the plug housing 21 but also prevents the organic cable from being unable to retract into the connecting sleeve 22 during welding, thus meeting the requirements of high temperature and high radiation conditions and being easy to operate. Furthermore, the cooperation between the slip ring 221 and the sliding groove 127 makes it difficult for the connecting sleeve 22 to separate from the first connecting member 123 and also acts as a guide, which helps to improve the connection stability between the first connecting member 123 and the connecting sleeve 22.
[0043] It should be noted that the length of the groove 127 is not less than the length of the connecting sleeve 22. This allows the connecting sleeve 22 to slide backward a distance that exposes the entire rear end of the plug housing 21 to the outside with sufficient space for welding the core wires inside the organic cable to the rear end of the plug assembly 2.
[0044] Specifically, the plug housing 21 has a through cavity running from front to back. Inside the cavity, an insulator assembly, a retaining ring 214 that fixes the insulator assembly to the plug housing 21, and a first welding part 215 are installed in sequence. Both the first welding part 215 and the insulator assembly have sockets 217 with the same number of core wires. The core wires are welded to the first welding part 215. The first welding part 215 is filled with sealant. The plug housing 21 has a potting hole at the corresponding position of the first welding part 215. The sealant used is H77 glue.
[0045] An insulator assembly and a first welding part 215 are installed inside the cavity of the plug housing 21. The insulator assembly is fixed inside the plug housing 21 by a retaining ring 214. Both the first welding part 215 and the insulator assembly are provided with a number of sockets 217 equal to the number of core wires, so that the core wires of the organic cable are welded to the first welding part 215 one by one with the sockets 217. The inside of the first welding part 215 is filled with sealant through the glue-filling hole, which not only enhances the fixation of the core wires at the welding point of the first welding part 215, but also enhances the seal at this point.
[0046] The insulator assembly includes a socket insulator 211 and an insulator cover plate 212, wherein a rubber sealing gasket 213 is provided between the socket insulator 211 and the insulator cover plate 212, and the rubber sealing gasket 213 is made of radiation-resistant phenyl silicone rubber.
[0047] The connector cable assembly includes a socket cable 3, and the socket cable 3 includes a socket assembly 4, such as... Figure 3 , Figure 8 As shown, the plug assembly 2 is used to engage with the socket assembly 4 to transmit electrical signals. The socket assembly 4 includes a socket housing 41. The inner surface of the socket housing 41 is provided with a positioning rib 411. The plug housing 21 is provided with a positioning groove 216 that matches the positioning rib 411. The outer surface of the socket housing 41 is provided with threads for inserting the connecting screw sleeve 22 and tightening it to fix the two.
[0048] The socket assembly 4 and the plug assembly 2 are aligned with the positioning groove 216 on the plug housing 21 that matches the positioning protrusion 411 on the outer surface of the socket housing 41. This allows the socket housing 41 and the plug housing 21 to be initially connected, avoiding inaccurate insertion of the socket assembly 4 and the plug assembly 2 due to misalignment, which would lead to poor electrical signal transmission. At the same time, the outer surface of the socket housing 41 is provided with threads for inserting the connecting screw sleeve 22 and tightening it to fix the two together. This threaded connection also makes it easier to disassemble and install the plug assembly 2 and the socket assembly 4.
[0049] A metal seal is provided on the mating end face where the plug housing 21 and the socket housing 41 are inserted, and the connection is made by tightening the connecting screw sleeve 22 and the socket housing 41 to ensure the seal at the insertion point of the plug housing 21 and the socket housing 41.
[0050] In this embodiment, the metal seal is a copper sealing gasket.
[0051] like Figures 1 to 7 As shown, the socket cable 3 includes an organic cable. The socket housing 41 is equipped with a second welding part 412, a first insulator 413 and a glass sintered part 414 in sequence from front to back. The core wire in the organic cable is welded to the front end of the second welding part 412. The second welding part 412, the first insulator 413 and the glass sintered part 414 are all provided with a number of pins 415 equal to the number of sockets 217. A sealing member is installed at the rear end of the glass sintered part 414. When the plug housing 21 and the socket housing 41 are plugged in, the sealing member abuts against the plug housing 21.
[0052] The core wire inside the organic cable is welded to the front end of the second welding part 412. The second welding part 412, the first insulator 413, and the glass sintered part 414 are all provided with a number of pins 415 equal to the number of sockets 217. By inserting the pins 415 into the sockets 217, the electrical signal transmission between the socket cable 3 and the plug cable 1 is realized. The rear end of the first insulator 413 is provided with a glass sintered part 414 for sealing. Since glass is an inorganic material, it has the characteristics of radiation resistance and high temperature resistance. The rear end of the glass sintered part 414 is also equipped with a sealing element. In this embodiment, the sealing element is a sealing ring. The preferred material is phenyl radiation-resistant and high temperature-resistant silicone rubber. The sealing element ensures the sealing at the insertion point of the plug housing 21 and the socket housing 41.
[0053] It should be noted that, as described above, by adding a metal seal to the mating end face of the plug housing 21 and the socket housing 41, and by setting a seal inside the socket housing 41, and by tightening the connecting screw sleeve 22 to the socket housing 41, it is ensured that even if the plug housing 21 is accidentally soaked in water during actual use, it can be used directly by simply shaking and wiping the surface moisture off the plug housing 21. The metal seal prevents moisture from entering through the plug housing 21 and the socket housing 41, thus avoiding electrical connection failure between the plug cable 1 and the socket cable 3.
[0054] In actual use, even in the event of a severe accident, such as when the connector's cable assembly is submerged in boric acid water, the above-mentioned sealing method can still ensure sealing performance.
[0055] Furthermore, the glass sintered component 414 mentioned above can achieve a leakage rate of 1x10-10 Pa·m3 / s under one atmosphere of pressure, making it fully suitable for practical use environments.
[0056] The socket cable 3 is installed from back to front with the following components in sequence: socket assembly 4, second connector 31 welded to socket assembly 4, second corrugated tube 32 welded to second connector 31, second wire clamp assembly 33 welded to second corrugated tube 32, and sealing assembly 34 welded to second wire clamp assembly 33. The sealing assembly 34 includes a potting component 341, and a sealing gasket 342 is provided inside the potting component 341. The front end of the sealing gasket 342 is filled with sealant.
[0057] The socket assembly 4 is installed at the end of the cable, and then the second connector 31 is soldered to the socket assembly 4. Next, the second corrugated tube 32 is soldered to the second connector 31 to provide additional protection and flexibility. Then, the second clamp assembly 33 is soldered to the second corrugated tube 32 to secure the cable. Finally, a sealing assembly 34 is installed at the very end of the cable, ensuring the cable's sealing and waterproofing through a combination of an encapsulating component 341, a sealing gasket 342, and sealant.
[0058] It should be noted that the second clamp assembly 33 of the socket cable 3 includes a cable clamp 122 with the same structure as the first clamp assembly 12.
[0059] In this embodiment, both the first corrugated pipe 11 and the second corrugated pipe 32 mentioned above are stainless steel corrugated pipes;
[0060] The aforementioned sealing gasket 342 is made of radiation-resistant phenyl silicone rubber. This material can be used in continuous irradiation environments, at 150°C for long-term use and at 200°C for short-term use, avoiding irreversible deterioration of the mechanical properties of the insulating material due to long-term accumulation of excessive radiation.
[0061] The sealant mentioned above is H77 sealant.
[0062] All of the above welding operations were laser welding;
[0063] The aforementioned socket insulator 211, insulator cover 212, and first insulator 413 may be made of ceramic material.
[0064] In addition to the preferred embodiments described above, there are other embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection claimed by this utility model.
Claims
1. A connector cable assembly, characterized in that, The device includes a plug cable and a plug assembly connected to the end of the plug cable. The plug cable includes an organic cable, a first corrugated tube wrapped around the outside of the organic cable, and a first clamp assembly for fixing the organic cable. The first clamp assembly includes a clamping member, a cable clamp, and a first connector. The organic cable passes through the clamping member, the cable clamp, and the first connector in sequence, and the core wire inside the organic cable is welded to the rear end of the plug assembly. One end of the first connector is connected to the plug assembly, and the other end of the first connector is fixed to the cable clamp. One end of the clamping member is welded to the first corrugated tube, and the other end of the clamping member is sleeved on the outside of the cable clamp and welded to the outer periphery of the first connector. The inner wall of the clamping member presses against the cable clamp inward so that the cable clamp is clamped to the outside of the organic cable.
2. The connector cable assembly according to claim 1, characterized in that, The cable clamp includes multiple cantilever arms evenly distributed circumferentially. The outer circumferential surface of the rear end of the cantilever arm has a first inclined surface that converges toward the organic cable. The inner surface of the clamping member has a second inclined surface. The first inclined surface abuts against the second inclined surface to clamp the rear end of the cantilever arm with the organic cable.
3. A connector cable assembly according to claim 1, characterized in that, The plug assembly includes a plug housing and a connecting screw sleeve. The rear end of the plug housing is welded to the front end of the first connector. The first connector is provided with a groove that is recessed relative to the plug housing. The connecting screw sleeve is sleeved on the outside of the plug housing, and the tail end of the connecting screw sleeve is provided with a slip ring that allows the connecting screw sleeve to slide against the groove.
4. A connector cable assembly according to claim 3, characterized in that, The length of the groove shall not be less than the length of the connecting threaded sleeve.
5. A connector cable assembly according to claim 3, characterized in that, The plug housing has a through cavity running from front to back. Inside the cavity, an insulator assembly, a retaining ring that fixes the insulator assembly to the plug housing, and a first welding part are installed in sequence. Both the first welding part and the insulator assembly have sockets with the same number of core wires. The core wires are welded to the first welding part, which is filled with sealant. The plug housing has a potting hole at the corresponding position of the first welding part.
6. A connector cable assembly according to claim 5, characterized in that, The connector cable assembly includes a socket cable, the socket cable includes a socket assembly, a plug assembly for mating with the socket assembly to transmit electrical signals, the socket assembly includes a socket housing, the inner surface of the socket housing is provided with a positioning rib, the plug housing is provided with a positioning groove adapted to the positioning rib, and the outer surface of the socket housing is provided with threads for inserting a connecting screw sleeve and tightening to fix the two.
7. A connector cable assembly according to claim 6, characterized in that, The mating surfaces of the plug housing and the socket housing are equipped with metal seals.
8. A connector cable assembly according to claim 6, characterized in that, The socket cable includes an organic cable. Inside the socket housing, a second welding part, a first insulator, and a glass sintered component are installed sequentially from front to back. The core wire inside the organic cable is welded to the front end of the second welding part. The second welding part, the first insulator, and the glass sintered component are all equipped with pins equal to the number of socket holes. A sealing component is installed at the rear end of the glass sintered component. When the plug housing and the socket housing are plugged in, the sealing component abuts against the plug housing.
9. A connector cable assembly according to claim 6, characterized in that, The socket cable is installed from back to front with a socket assembly, a second connector welded to the socket assembly, a second corrugated tube welded to the second connector, a second wire clamp assembly welded to the second corrugated tube, and a sealing assembly welded to the second wire clamp assembly. The sealing assembly includes a potting component, and a sealing gasket is provided inside the potting component. The front end of the sealing gasket is filled with sealant.
10. The connector cable assembly according to any one of claims 1-9, characterized in that, All of the welding described herein is laser welding.
Citation Information
Patent Citations
K1-type electrical connector assembly of mineral insulated cable for nuclear power
CN110380252A