CN112531381B - Shielding twisted-pair conductor connector - Google Patents
Shielding twisted-pair conductor connector Download PDFInfo
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- CN112531381B CN112531381B CN202011353779.7A CN202011353779A CN112531381B CN 112531381 B CN112531381 B CN 112531381B CN 202011353779 A CN202011353779 A CN 202011353779A CN 112531381 B CN112531381 B CN 112531381B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6591—Specific features or arrangements of connection of shield to conductive members
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention discloses a shielding twisted-pair conductor connector which comprises a plug and a joint, wherein the plug is electrically connected with a flexible shielding twisted-pair cable core through welding, the joint is electrically connected with a rigid shielding twisted-pair conductor through welding, and then the plug and the joint are elastically contacted and connected through a jack contact piece and a pin contact piece to realize electrical connection. The insulating layer is designed in a split mode and is divided into a mounting plate and an insulator; the core wire is independently fixed on the mounting plate, the defects that the core wire bending difficulty is high, the gap of the twisted pair core wire is small, and welding influences each other are effectively overcome, the welding spot is contained in the insulator, the creepage distance can be effectively increased, and the insulating property of the shielding twisted pair conductor joint is improved. The connector provided by the invention has the advantages of excellent structure, good sealing performance, stable electrical performance, strong anti-interference shielding capability and the like, and can meet special requirements on radiation resistance, aging resistance and the like.
Description
Technical Field
The invention relates to the technical field of electronic connecting devices, in particular to a shielded twisted pair conductor connector.
Background
In nuclear power plants and engineering test reactors, a large number of electronic and electrical systems and equipment are generally arranged, and various signals are interconnected among the equipment through transmission cables and control cables. The shielding twisted-pair conductor assembly is one of the newly added conductor assemblies of the electrical penetration assembly of the third generation nuclear power plant, is a widely used transmission medium, the twisted-pair structure of the shielding twisted-pair conductor assembly can increase the immunity of a transmission line and prevent the leakage of transmission signals, and meanwhile, the shielding layer wrapped outside has a good inhibiting effect on a high-frequency electromagnetic field and has good electrical performance and electromagnetic shielding performance. The shielding twisted-pair conductor joint is a component which is arranged at two ends of a shielding twisted-pair conductor of an electric penetration piece and is used for realizing the electric connection between equipment inside and outside a shell or between wire harnesses, is used as a key component for connecting a shielding twisted-pair conductor assembly and an external cable, and has the advantage and disadvantage of the performance which are directly related to the electric connection of the shielding twisted-pair conductor assembly and the stability of signal transmission.
At present, a standard multi-core connector of a certain foreign brand is selected for a shielding twisted-pair conductor assembly, and the standard multi-core connector is mainly used for connecting common flexible cables, so that the following problems exist when the standard multi-core connector is directly used for the shielding twisted-pair conductor assembly: (1) the connector is not well matched with a mechanical interface of the shielding twisted-pair conductor assembly, and the connector needs to be specially repaired during assembly, so that the assembly difficulty is high, and the yield is low; (2) the needle core density of the existing connector is high, and the electrical clearance is small, so the operation space for welding the shielding twisted-pair conductor wire core and the connector is small, and the additional insulation installation difficulty is large; (3) because the electrical clearance of the connector is small, possible contamination in the processing process has a large influence on the electrical performance of the connector, and therefore the installation process of the connector has strict requirements on the operating environment and the operating procedure.
Due to the structural characteristics of the penetrating member rigid shielding twisted pair conductor assembly, the development of shielding twisted pair conductor joints at home and abroad is less, and the development of common double-core cable connectors is mostly focused. For example, in "a two-core connector" disclosed in patent CN 105390893a, the connector is designed with a misplug prevention structure such as a key tooth and a key groove, does not consider requirements such as radiation resistance, electromagnetic shielding and interface matching property for connecting with a rigid conductor, and is not suitable for being used on nuclear equipment such as an electrical penetration piece; in addition, as the patent CN 207883997U discloses "high-voltage connector with high-efficiency shielding", although considering electromagnetic shielding, it adopts a structure of embedding metal parts in a plastic shell, and the plastic has a thermal aging problem, and is generally not recommended to be used in a nuclear environment.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the invention provides a shielding twisted-pair conductor connector which solves the problems, is suitable for electrical penetration pieces for nuclear power stations, engineering test piles, decommissioning nuclear facilities and the like, is used for realizing the connection of a shielding twisted-pair cable and a shielding twisted-pair conductor, meets the functional requirements of strong radiation resistance and electromagnetic radiation interference resistance and the like, and has good electrical performance and sealing performance.
The invention is realized by the following technical scheme:
a shielded twisted pair conductor connector comprises a plug and a joint, wherein the plug comprises a plug shell II, a contact pin contact element, a plug insulator, a plug insulating mounting plate and a plug sealing element; the plug shell II is internally provided with a contact pin contact element, a plug insulator, a plug insulating mounting plate and a plug sealing element in sequence along the axial direction; the plug is used for mounting one end of a flexible shielding twisted pair cable; after one end of the flexible shielding twisted-pair cable penetrates through the plug sealing element, the core wires of one end of the flexible shielding twisted-pair cable are fixed on the plug insulating mounting plate at intervals, and the free ends of the core wires are connected with the contact pin contact elements in a welding manner; the free end of the core wire and the welding part of the contact pin contact element are contained in the plug insulator; the outer wall of one end of the flexible shielding twisted-pair cable is connected with the inner wall of the plug shell II in a sealing mode through a plug sealing element; the connector comprises a connector shell, a jack contact element, a connector insulator, a connector insulating mounting plate and a connector sealing element, wherein the connector insulator, the connector insulating mounting plate and the connector sealing element are sequentially arranged in the connector shell along the axial direction; the joint is used for mounting one end of the rigid shielding twisted pair conductor; after one end of the rigid shielding twisted-pair conductor penetrates through the plug joint sealing element, the core wires at one end of the rigid shielding twisted-pair conductor are fixed on the joint insulating mounting plate at intervals, and the free ends of the core wires are connected with the jack contact element in a welding manner; the free end of the core wire and the welding part of the jack contact element are contained in the joint insulator; the outer wall of one end of the rigid shielding twisted-pair conductor is hermetically fixed on the joint shell through a joint sealing element; the connector and the plug are in elastic contact connection through the jack contact element and the pin contact element to realize electric connection.
At present, a standard multi-core connector of a certain foreign brand is selected for a shielding twisted-pair conductor assembly, and the standard multi-core connector is mainly used for connecting common flexible cables, so that the following problems exist when the standard multi-core connector is directly used for the shielding twisted-pair conductor assembly: (1) the connector is not well matched with a mechanical interface of the shielding twisted-pair conductor assembly, and the connector needs to be specially repaired during assembly, so that the assembly difficulty is high, and the yield is low; (2) the needle core density of the existing connector is high, and the electrical clearance is small, so the operation space for welding the shielding twisted-pair conductor wire core and the connector is small, and the additional insulation installation difficulty is large; (3) because the electrical clearance of the connector is small, possible contamination in the processing process has a large influence on the electrical performance of the connector, and therefore the installation process of the connector has strict requirements on the operating environment and the operating procedure.
Based on the technical background, the invention provides a shielded twisted-pair conductor connector, wherein a plug is electrically connected with a flexible shielded twisted-pair cable core by welding (specifically, a core wire of the flexible shielded twisted-pair cable after being stripped of a shielding layer is welded with a pin contact of the plug), a joint is electrically connected with a rigid shielded twisted-pair conductor by welding (specifically, a core wire of the rigid shielded twisted-pair cable after being stripped of the shielding layer is welded with a jack contact), and then the plug and the joint are elastically connected by the jack contact and the pin contact in a contact manner to realize the electrical connection.
The insulating layer is designed in a split mode and is divided into a mounting plate and an insulator; specifically, for the plug, the insulating layer is divided into a plug insulator and a plug mounting plate, the core wire of the flexible shielding twisted-pair cable is fixed on the plug mounting plate, and the welding spot is contained in the plug insulator; for the joint, the insulating layer is divided into a joint insulator and a joint mounting plate, the core wire of the rigid shielding twisted-pair conductor is fixed on the joint mounting plate, and the welding spot is contained in the joint insulator. The twisted pair core wires are separated independently through the arrangement of the mounting plate, so that the problems that the bending difficulty of the twisted pair conductor core wires is large, the core wire gaps are small, and the welding mutual influence interferes are solved. The insulator contains the welding spot in the insulating layer, can effectively increase the creepage distance between the contact pieces, improves the insulating property of the conductor joint, and ensures the stable electrical property thereof.
The connector provided by the invention has the advantages of excellent structure, good sealing performance, stable electrical performance, strong anti-interference shielding capability and the like, can meet special requirements on radiation resistance, aging resistance and the like, and is mainly used for electrical penetration pieces for nuclear power stations, engineering test reactors, decommissioned nuclear facilities and the like to realize the connection of shielding twisted-pair conductors and cables. And the method can also be used in the field of other shielded twisted pair cable connections with higher requirements on environment and performance.
Preferably, the plug insulator and the plug insulating mounting plate of the plug and/or the joint insulator and the joint insulating mounting plate of the joint are made of polymer materials by machining or injection molding; the polymer material comprises polyethersulfone, polyetheretherketone or polysulfone.
The material of insulating layer (plug insulator, plug insulating mounting panel, joint insulator and joint insulating mounting panel) is preferred to design, does benefit to and improves insulating properties and connection stability.
Further preferably, the plug seal comprises a bushing I and a bushing II; a bush I and a bush II are sequentially arranged in the plug outer shell II along the axial direction and in the direction far away from the plug insulating mounting plate; the core wire positioned outside the plug insulation mounting plate penetrates through the bushing I and the bushing II and is fixed through the bushing I and the bushing II in a back pressure fastening mode.
The bushing I and the bushing II are sleeved outside a core wire positioned outside the plug insulating mounting plate, and the bushing I and the bushing II are guaranteed to compress and fix the core wire section, so that the improvement of the sealing and shielding performance of the connection between the shielding twisted-pair cable and the plug is facilitated.
Further preferably, the plug seal further comprises a gasket II, a gasket III and a shaft sleeve; a washer II and a washer III are sequentially arranged in the plug shell II along the axial direction and the direction far away from the bush II, and the shaft sleeve is in threaded connection with the port of the plug shell II; through screwing the shaft sleeve, the shaft sleeve extrudes the gasket II and the gasket III, and the gasket II and the gasket III are filled through elastic deformation, so that the outer shielding layer of the flexible shielding twisted-pair cable is connected with the joint in a sealing and shielding manner.
Through setting up packing ring II, packing ring III and axle sleeve, compress tightly packing ring II and packing ring III between bush II and axle sleeve, through screwing the axle sleeve, axle sleeve extrusion packing ring II and packing ring III, and then make packing ring II and packing ring III take place elastic deformation, with the clearance of filling shielding twisted pair cable shielding layer outer wall and packing ring II and packing ring III, and fill shielding twisted pair cable shielding layer outer wall and bush II's clearance, and then ensure the fastening of flexible shielding twisted pair cable outer shielding layer and plug sealed and shield.
Further preferably, the joint seal comprises a shaft sleeve I and a sealing gasket; one end of the shaft sleeve I is in threaded connection with the port of the joint shell in a sleeved mode; and a sealing gasket is arranged between the end face of the shaft sleeve I and the end face of the step in the joint shell for sealing.
And a shaft sleeve I is designed at the tail end of the joint so as to improve the connection tightness between the joint and the outer shielding layer of the shielding double-twisted conductor.
Further preferably, the joint seal further comprises an elastic wire clamp and a shaft sleeve II; one end of the shaft sleeve II is sleeved in the free end port of the shaft sleeve I in a threaded connection manner; and the elastic wire clamp is tightly pressed between the end face of the step in the shaft sleeve I and the end face of the shaft sleeve II.
The joint tail part is provided with a shaft sleeve I, a wire clamp and a shaft sleeve II which are directly sleeved on the rigid outer shielding layer of the shielding twisted-pair conductor, the wire clamp is compressed by screwing the shaft sleeve II, the elastic deformation of the wire clamp is utilized to fill the gap between the shaft sleeve I and the outer shielding layer of the shielding twisted-pair conductor, the rigid conductor is effectively clamped, the dense circumferential connection between the shielding twisted-pair joint and the conductor is realized, and the good electromagnetic performance is ensured.
Further preferably, the elastic wire clamp is a silver-plated wire clamp; and the elastic wire clamp is in a conical structure along the axial direction of the joint shell.
The wire clamp is preferably designed to be of a conical structure, the inclined plane of the conical end of the wire clamp is matched with the inclined step surface in the shaft sleeve I, and the shaft sleeve II is matched with the extrusion effect of the wire clamp, so that the shaft sleeve I and the outer layer of the shielding twisted-pair conductor are efficiently and hermetically connected.
Further preferably, the plug further comprises a plug housing I and a gasket I; one end of the plug shell I is sleeved at one end of the plug shell II provided with the contact pin contact element; one end of the connector shell provided with the jack contact element is embedded into the plug shell I, and the end face of the plug shell I is in sealing contact with the end face of the plug shell II through the gasket I.
When the joint is in butt joint with the plug, the end part of the joint shell of the joint is inserted into the plug shell I of the plug, and then the elastic gasket I is tightly pressed between the end surface of the joint shell and the step surface in the plug shell I, so that the joint is in sealed contact connection with the plug.
Preferably, a multi-tooth annular structure is arranged on the outer side wall of the joint shell along the circumferential direction to serve as a clamping jaw; and a conical barb structure clamped with the clamping jaw is arranged on the inner wall of the plug shell I.
Further preferably, the inner wall of the plug housing I is provided with a key groove extending along the axial direction, the outer wall of the joint housing is provided with a guide key extending along the axial direction, and the guide key is in sliding fit with the key groove.
The connector shell of the shielding twisted-pair connector is provided with a multi-tooth annular clamping jaw, a conical barb structure is arranged in the plug shell I of the shielding twisted-pair plug, the shell pieces of the shielding twisted-pair connector and the plug are quickly plugged and pulled out through the engagement and the back-pull unlocking of the clamping jaw and the barb, and the misplugging and the inclined plugging in the opposite plugging process are effectively prevented; the two butt-joint shells are internally provided with a guide key and a key slot, so that the two shells can be quickly connected and unlocked.
The invention has the following advantages and beneficial effects:
the invention provides a shielding twisted-pair conductor connector which has good electrical performance and sealing performance, has excellent anti-electromagnetic interference capability, meets the nuclear environment conditions of irradiation resistance, high temperature and high pressure resistance and aging resistance, and has a simple structure and easy plugging; the connector provided by the invention is mainly used for electrical penetration pieces such as nuclear power stations, engineering test reactors, decommissioned nuclear facilities and the like, and realizes the connection of a shielding twisted-pair conductor and a cable; and the method can also be used in the field of other shielded twisted pair cable connections with higher requirements on environment and performance. Specifically, the invention mainly has the following beneficial effects:
1. the invention fixes the wire core on the mounting plate independently by the split design of the insulating layer and the use of special polymer insulating material, effectively solves the defects of high bending difficulty of the wire core, small gap of the twisted pair wire core and mutual influence of welding, contains the welding spot in the insulator, can effectively increase creepage distance and improve the insulating property of the shielding twisted pair conductor connector.
2. According to the characteristics of the rigid conductor and the flexible cable shielding layer, the sealing parts of the shaft sleeve and the silver-plated wire clamp and the shaft sleeve and the elastic gasket are respectively designed, so that the good sealing between the shielding layer for shielding the twisted-pair conductor and the joint and between the shielding layer for shielding the twisted-pair cable and the plug is ensured, and the shielding continuity is ensured.
3. The joint of the shielding twisted-pair conductor and the shielding twisted-pair cable plug are respectively provided with the claw barb, the guide key and the key groove structure, so that the quick plugging and unplugging of the shell of the butt joint of the plug and the joint are realized, the continuity of a shielding layer of the shell is ensured, and meanwhile, the structure reduces the integral size of the joint and is convenient for the assembly of an electrical penetration assembly.
4. The reliable connection of the shielding twisted-pair plug and the joint is realized through the welding connection between the contact piece and the conductor or the cable and the elastic connection between the contact pieces, and the structure is simple and the performance is reliable.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic diagram of a shielded twisted pair cable plug according to the present invention.
Fig. 2 is a schematic diagram of a shielded twisted pair conductor joint structure according to the present invention.
Reference numbers and corresponding part names in the drawings: 1-plug shell I, 2-conical barb structure, 3-pin contact, 4-gasket I, 5-plug insulator, 6-collar, 7-plug insulating mounting plate, 8-plug shell II, 9-bush I, 10-bush II, 11-gasket II, 12-gasket III, 13-shaft sleeve, 14-flexible shielding twisted pair cable;
15-joint insulator, 16-jack contact, 17-joint shell, 18-shaft sleeve I, 19-shaft sleeve II, 20-shielding twisted pair conductor, 21-elastic wire clamp, 22-sealing gasket, 23-joint insulating mounting plate and 24-claw.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
The present embodiment provides a shielded twisted pair conductor connector comprising a header and a header, the header comprising a cylindrical header housing II8, a pin contact 3, a header insulator 5, a header insulating mounting plate 7 and a header seal. The plug shell II8 is internally provided with a pin contact 3, a plug insulator 5, a plug insulating mounting plate 7 and a plug sealing element in sequence along the axial direction. The plug is used to mount one end of a flexible shielded twisted pair cable 14; after one end of the flexible shielding twisted-pair cable 14 passes through the plug sealing element, the core wires at one end of the flexible shielding twisted-pair cable 14 are fixed on the plug insulating mounting plate 7 at intervals, and the free ends of the core wires are connected with the contact pin contact element 3 in a welding manner; the welding part of the free end of the core wire and the contact pin contact element 3 is contained in the plug insulator 5; and the outer wall of one end of the flexible shielded twisted pair cable 14 is sealingly connected with the inner wall of the plug housing II8 through a plug sealing member.
The joint comprises a joint shell 17, a jack contact piece 16, a joint insulator 15, a joint insulating mounting plate 23 and a joint sealing piece, wherein the shape of the joint shell 17 is integrally cylindrical, the joint insulator 15, the joint insulating mounting plate 23 and the joint sealing piece are sequentially arranged in the joint shell 17 along the axial direction, and the jack contact piece 16 is arranged in the joint insulator 15. The splice is used to mount one end of the rigid shielded twisted pair conductor 20; after one end of the rigid shielding twisted-pair conductor 20 passes through the plug joint sealing element, the core wires at one end of the rigid shielding twisted-pair conductor 20 are fixed on the joint insulating mounting plate 23 at intervals, and the free ends of the core wires are connected with the jack contact piece 16 in a welding manner; the free end of the core wire and the welding part of the jack contact element 16 are contained in the joint insulator 15; and an outer wall of one end of the rigid shielded twisted pair conductor 20 is sealingly fixed to the joint housing 17 by a joint seal.
The electric connection between the connector and the plug is realized through the elastic contact connection of the jack contact piece 16 and the pin contact piece 3. The plug insulator 5, the plug insulating mounting plate 7 of the plug, and the joint insulator 15 and the joint insulating mounting plate 23 of the joint are all made of polyether sulfone polymer materials by machining or injection molding.
Example 2
The structure of the sealing element of the plug and the sealing element of the joint is designed according to the following steps:
the plug seal includes bushing I9, bushing II10, washer II11, washer III12, and bushing 13. A bush I9 and a bush II10 are sequentially arranged in the plug outer shell II8 along the axial direction and the direction far away from the plug insulating mounting plate 7; the core wire located outside the plug insulating mounting plate 7 penetrates through the central portions of the bushing I9 and the bushing II10 and is fixed by back pressure fastening through the bushing I9 and the bushing II 10. A washer II11 and a washer III12 are sequentially arranged in the plug housing II8 along the axial direction and the direction far away from the bush II10, and the shaft sleeve 13 is in threaded connection with the port of the plug housing II 8; by screwing sleeve 13, sleeve 13 presses washer II11 and washer III12, and the outer shielding layer of the flexible shielded twisted pair cable is filled by elastic deformation of washer II11 and washer III12, thereby achieving the sealing and shielding connection with the joint. The axial both ends of design packing ring II11 are the toper protruding structure, and corresponding bush II10 is the toper groove structure towards the axial one end terminal surface of packing ring II11, and packing ring III12 is the toper groove structure towards the one end terminal surface of packing ring II11, and the toper protruding structure embedding at the axial both ends of packing ring II11 is the adaptation in the toper groove structure of both sides. And finally, the circumferential sealing of the plug and the shielding layer of the flexible shielding twisted pair cable is realized.
The joint seal comprises a sleeve I18, a sealing washer 22, an elastic wire clamp 21 and a sleeve II 19. The inside passage of axle sleeve I18 includes path section and major diameter section, path section interference fit cover is established outside the shielding layer of shielding double twisted conductor 20, and the outer wall of the path section free port of axle sleeve I18 is equipped with the external screw thread, and the one end port inner wall of keeping away from joint insulator 15 on the joint shell 17 is equipped with the internal thread, and axle sleeve I18 is established in the port of joint shell 17 through external screw thread and internal thread adaptation cover, and sets up seal ring 22 between the terminal surface of the path end free port of axle sleeve I18 and the step terminal surface in the joint shell 17 and seal. An internal thread is arranged at the inner wall of a port of the large-diameter section of the shaft sleeve I18, an external thread is arranged on the outer wall of a port at one end of the shaft sleeve II19, the elastic wire clamp 21 is coaxially sleeved in the large-diameter section of the shaft sleeve I18, the outer wall of the elastic wire clamp 21 is in interference fit contact with the inner wall of the large-diameter section of the shaft sleeve I18, and the inner wall of the elastic wire clamp 21 is in interference fit contact with a shielding layer of the shielding double-twisted conductor 20. The external thread end of the shaft sleeve II19 is arranged in the free end port of the large-diameter section of the shaft sleeve I18 through a thread connecting sleeve; and the elastic wire clamp 21 is tightly pressed between the end face of the step in the shaft sleeve I18 and the end face of the shaft sleeve II 19. The elastic wire clamp 21 adopts a silver-plated wire clamp; and the elastic clip 21 has a tapered configuration in the axial direction along the joint housing 17. And finally, the circumferential sealing of the joint and the outer shielding layer of the rigid shielding twisted pair conductor is realized.
Example 3
In addition to the improvement of the embodiment 2, the plug also comprises a plug outer shell I1 and a gasket I4; one end of the plug shell I1 is sleeved at one end of the plug shell II8 provided with the pin contact 3; one end of the header housing 17 provided with the socket contact 16 is embedded in the plug housing I1, and the end face of the plug housing I1 is in sealing contact with the end face of the plug housing II8 via a gasket I4. A multi-tooth annular structure is arranged on the outer side wall of the joint shell 17 along the circumferential direction to serve as a clamping jaw 24; and the inner wall of the plug shell I1 is provided with a conical barb structure 2 clamped with the clamping jaw 24. The inner wall of the plug outer shell I1 is provided with a key groove extending along the axial direction, the outer wall of the joint outer shell 17 is provided with a guide key extending along the axial direction, and the guide key is matched with the key groove in a sliding mode.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only examples of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. A shielded twisted pair connector comprising a plug and a header,
the plug comprises a plug shell II (8), a contact pin contact element (3), a plug insulator (5), a plug insulating mounting plate (7) and a plug sealing element; the plug shell II (8) is internally provided with a contact pin contact element (3), a plug insulator (5), a plug insulating mounting plate (7) and a plug sealing element in sequence along the axial direction;
the plug is used for mounting one end of a flexible shielded twisted pair cable (14); after one end of the flexible shielding twisted-pair cable (14) penetrates through the plug sealing element, the core wires of one end of the flexible shielding twisted-pair cable (14) are fixed on the plug insulating mounting plate (7) at intervals, and the free ends of the core wires are connected with the contact pin contact element (3) in a welding manner; the welding part of the free end of the core wire and the contact pin contact element (3) is contained in the plug insulator (5); the outer wall of one end of the flexible shielding twisted-pair cable (14) is connected with the inner wall of the plug shell II (8) in a sealing mode through a plug sealing element;
the connector comprises a connector shell (17), a jack contact element (16), a connector insulator (15), a connector insulating mounting plate (23) and a connector sealing element, wherein the connector insulator (15), the connector insulating mounting plate (23) and the connector sealing element are sequentially arranged in the connector shell (17) along the axial direction, and the jack contact element (16) is arranged in the connector insulator (15);
the joint is used for mounting one end of a rigid shielding twisted pair conductor (20); after one end of the rigid shielding twisted-pair conductor (20) penetrates through a plug joint sealing element, all strands of core wires at one end of the rigid shielding twisted-pair conductor (20) are fixed on a joint insulating mounting plate (23) at intervals, and the free ends of the core wires are connected with the jack contact element (16) in a welding manner; the welding part of the free end of the core wire and the jack contact element (16) is contained in the joint insulator (15); the outer wall of one end of the rigid shielding twisted pair conductor (20) is hermetically fixed on the joint shell (17) through a joint sealing element;
the connector and the plug are in elastic contact connection through a jack contact element (16) and a pin contact element (3) to realize electric connection;
the plug seal comprises a bushing I (9) and a bushing II (10); a bush I (9) and a bush II (10) are sequentially arranged in the plug outer shell II (8) along the axial direction and the direction far away from the plug insulating mounting plate (7); the core wire positioned outside the plug insulation mounting plate (7) penetrates through the bushing I (9) and the bushing II (10) and is fixed through the bushing I (9) and the bushing II (10) in a back pressure fastening mode; the plug sealing element further comprises a gasket II (11), a gasket III (12) and a shaft sleeve (13); a gasket II (11) and a gasket III (12) are sequentially arranged in the plug shell II (8) along the axial direction and the direction far away from the bushing II (10), and a shaft sleeve (13) is in threaded connection with a port of the plug shell II (8); the shaft sleeve (13) is screwed, the gasket II (11) and the gasket III (12) are extruded by the shaft sleeve (13), and the gasket II (11) and the gasket III (12) are filled through elastic deformation, so that the outer shielding layer of the flexible shielding twisted-pair cable is connected with the joint in a sealing and shielding manner;
the joint seal comprises a sleeve I (18) and a sealing gasket (22); one end of the shaft sleeve I (18) is sleeved in the port of the joint shell (17) in a threaded connection manner; a sealing gasket (22) is arranged between the end face of the shaft sleeve I (18) and the end face of the step in the joint shell (17) for sealing; the joint seal further comprises an elastic wire clamp (21) and a shaft sleeve II (19); one end of the shaft sleeve II (19) is sleeved in the free end port of the shaft sleeve I (18) in a threaded connection manner; the elastic wire clamp (21) is tightly pressed between the end face of the step in the shaft sleeve I (18) and the end face of the shaft sleeve II (19); the elastic wire clamp (21) adopts a silver-plated wire clamp; and the elastic wire clip (21) is in a conical structure along the axial direction of the joint shell (17);
the distance between the strands of core wires fixed on the plug insulating mounting plate (7) is larger than the distance between the strands of core wires in the flexible shielding twisted-pair cable (14);
the distance between the strands of core wires fixed to the joint insulating mounting plate (23) is larger than the distance between the strands of core wires in the rigid shielded twisted pair conductor (20).
2. A shielded twisted pair conductor connector according to claim 1, wherein the plug insulator (5) and the plug insulating mounting plate (7) of the plug, and/or the joint insulator (15) and the joint insulating mounting plate (23) of the joint are machined or injection molded from a polymer material; the polymeric material comprises polyethersulfone, polyetheretherketone, or polysulfone.
3. A shielded twisted pair conductor connector as claimed in claim 1, wherein said plug further comprises a plug housing I (1) and a gasket I (4); one end of the plug shell I (1) is sleeved at one end of the plug shell II (8) provided with the contact pin contact element (3); one end of a connector shell (17) provided with a jack contact piece (16) is embedded into the plug shell I (1), and the end face of the plug shell I (1) is in sealing contact with the end face of the plug shell II (8) through a gasket I (4).
4. The shielded twisted pair connector as claimed in claim 3, wherein the outer side wall of the joint housing (17) is provided with a multi-teeth ring structure as the claws (24) along the circumferential direction; the inner wall of the plug shell I (1) is provided with a conical barb structure connected with the clamping jaw (24).
5. A shielded twisted pair conductor connector according to claim 3, wherein said plug housing I (1) is provided with an axially extending key groove on its inner wall, and said joint housing (17) is provided with an axially extending guide key on its outer wall, said guide key being slidably fitted with said key groove.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011353779.7A CN112531381B (en) | 2020-11-26 | 2020-11-26 | Shielding twisted-pair conductor connector |
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| CN202011353779.7A CN112531381B (en) | 2020-11-26 | 2020-11-26 | Shielding twisted-pair conductor connector |
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| CN112531381A CN112531381A (en) | 2021-03-19 |
| CN112531381B true CN112531381B (en) | 2022-05-06 |
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| CN108899659B (en) * | 2018-08-20 | 2024-04-02 | 中国工程物理研究院总体工程研究所 | Sealed electric connector and manufacturing method thereof |
| CN113839241A (en) * | 2021-11-01 | 2021-12-24 | 浙江星月实业有限公司 | DC plug |
| CN113851901B (en) * | 2021-11-10 | 2023-06-20 | 中国核动力研究设计院 | Electrical penetration piece and penetration sealing structure |
| CN114256697B (en) * | 2021-11-29 | 2024-03-19 | 中航光电科技股份有限公司 | Rain-proof high-shielding-performance cable assembly |
| CN114389095A (en) * | 2021-12-27 | 2022-04-22 | 西安赛尔电子材料科技有限公司 | Electric penetration piece conductor assembly of glass sealing low-voltage instrument |
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| CN201113046Y (en) * | 2007-09-20 | 2008-09-10 | 西安科耐特科技有限责任公司 | High reliability needle-retracting resisting connector |
| CN202564729U (en) * | 2012-01-11 | 2012-11-28 | 张辉 | Double-layer screened coaxial cable with anti-separation design |
| CN104466447A (en) * | 2013-09-18 | 2015-03-25 | 上海翔洲电气科技有限公司 | Multi-core mining explosive-proof cable connector |
| CN204067672U (en) * | 2014-08-06 | 2014-12-31 | 石家庄八五零电子有限公司 | Multi-line high-voltage electric connector |
| CN204361357U (en) * | 2014-12-31 | 2015-05-27 | 国家电网公司 | A kind of high-tension shielding plug |
| US9257796B1 (en) * | 2015-02-09 | 2016-02-09 | Glenair, Inc. | Electrical connector for high-speed transmission using twisted-pair cable |
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