CN115173105A - Three-coaxial deep water sealing connector and internal plug, adapter and external plug thereof - Google Patents

Three-coaxial deep water sealing connector and internal plug, adapter and external plug thereof Download PDF

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Publication number
CN115173105A
CN115173105A CN202210877240.4A CN202210877240A CN115173105A CN 115173105 A CN115173105 A CN 115173105A CN 202210877240 A CN202210877240 A CN 202210877240A CN 115173105 A CN115173105 A CN 115173105A
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CN
China
Prior art keywords
plug
adapter
outer conductor
conductor
shell
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Pending
Application number
CN202210877240.4A
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Chinese (zh)
Inventor
赵纪正
高瑞苹
马世超
吴丹
严金鑫
刘一凯
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China Aviation Optical Electrical Technology Co Ltd
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China Aviation Optical Electrical Technology Co Ltd
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Application filed by China Aviation Optical Electrical Technology Co Ltd filed Critical China Aviation Optical Electrical Technology Co Ltd
Priority to CN202210877240.4A priority Critical patent/CN115173105A/en
Publication of CN115173105A publication Critical patent/CN115173105A/en
Pending legal-status Critical Current

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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
    • H01R13/02—Contact members
    • 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
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5202—Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/523—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases for use under water
    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/622—Screw-ring or screw-casing
    • 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  
    • 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  
    • H01R13/652—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding   with earth pin, blade or socket
    • 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]
    • H01R13/6581—Shield structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/005—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure requiring successive relative motions to complete the coupling, e.g. bayonet type
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The invention relates to a triaxial deepwater sealing connector and an internal plug, an adapter and an external plug thereof, wherein the triaxial deepwater sealing connector comprises an adapter, an internal plug and an external plug, the internal plug is used for being plugged with one end of the adapter, the external plug is used for being plugged with the other end of the adapter, and the adapter comprises an adapter coaxial structure and an adapter shell which is coaxially assembled outside the adapter coaxial structure; the outer plug comprises an outer plug coaxial structure and an outer plug shell coaxially assembled outside the outer plug coaxial structure; the inner plug includes an inner plug coaxial structure and a third insulator coaxially mounted outside the inner plug coaxial structure. The connector adopts a triaxial structure, and a shell shielding layer is additionally arranged for a working signal, so that an external interference signal cannot directly interfere the working signal in the coaxial structure through an outer conductor, the shielding efficiency is obviously improved, the leakage of the coaxial working signal is difficult, and the signal leakage risk and the electromagnetic interference risk are reduced.

Description

Three-coaxial deep water sealing connector and internal plug, adapter and external plug thereof
Technical Field
The invention belongs to the technical field of radio frequency coaxial connectors, and particularly relates to a triaxial deep water sealing connector and an internal plug, an adapter and an external plug thereof.
Background
The existing deep water sealed rf coaxial connectors are all coaxial structures, as shown in fig. 1, the signal transmission channel in the adaptor 10 and the plug 20 matched with the adaptor is composed of an outer conductor 30, a central conductor (a central pin 40 or a central jack 50) and an insulating medium 60, the outer conductor of the connector is directly exposed to the outside, and the connector also has the function of a connector housing. The adapter housing needs to be installed on the panel of the whole machine, and the panel of the whole machine is generally the ground of the whole machine system, so that the signal ground and the system ground are formed. At this moment, when a product transmits radio frequency signals during operation, the outer conductor of the connector is not only the outer conductor for signal transmission, but also the shielding body for signal shielding, and due to unavoidable imperfections of the outer conductor and unavoidable contact impedance of the contact part, other external interference signals are easy to directly interfere with the working signals in the coaxial transmission channel through the outer conductor. When the potential difference between the signal ground and the system ground is different, the system ground will generate electromagnetic interference to the signal ground and the working signal. Similarly, the internal working signal is also easy to leak out through the external conductor, which causes the risk of information leakage or electromagnetic interference to the related electronic devices nearby.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a triaxial deep water sealing connector and an internal plug, an adapter and an external plug thereof.
The purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme. The triaxial deep water sealing connector provided by the invention comprises an adapter, an inner plug and an outer plug, wherein the inner plug is used for being plugged with one end of the adapter, the outer plug is used for being plugged with the other end of the adapter,
the adapter comprises an adapter coaxial structure and an adapter shell coaxially assembled outside the adapter coaxial structure, wherein the adapter coaxial structure comprises a first outer conductor, a first insulating medium arranged in the first outer conductor and a first central conductor arranged in the first insulating medium, and a first insulator is arranged between the first outer conductor and the adapter shell;
the outer plug comprises an outer plug coaxial structure and an outer plug shell coaxially assembled outside the outer plug coaxial structure, the outer plug coaxial structure comprises a second outer conductor, a second insulating medium arranged in the second outer conductor and a second central conductor arranged in the second insulating medium, and a second insulator is arranged between the second outer conductor and the adapter shell;
the inner plug comprises an inner plug coaxial structure and a third insulator coaxially assembled outside the inner plug coaxial structure, and the inner plug coaxial structure comprises a third outer conductor, a third insulating medium arranged in the third outer conductor and a third central conductor arranged in the third insulating medium.
Furthermore, a first accommodating cavity for inserting one end of the second outer conductor is formed between the second insulator and the second outer conductor, a first elastic contact piece used for elastically contacting with the first outer conductor is arranged in the first accommodating cavity, and the first elastic contact piece is sleeved on the outer side of the second outer conductor; a second accommodating cavity for inserting the other end of the second outer conductor is formed between the third insulator and the third outer conductor, a second elastic contact piece used for being in elastic contact with the first outer conductor is arranged in the second accommodating cavity, and the second elastic contact piece is sleeved on the outer side of the third outer conductor.
Furthermore, the first elastic contact piece and the second elastic contact piece both comprise annular main bodies, and the side surfaces of the annular main bodies are bent outwards to form a plurality of elastic claws which are distributed circumferentially and are used for being in elastic contact with the inner wall of the first outer conductor.
Furthermore, the second insulator comprises an insulating pressing plate and an insulating sleeve arranged at the front end of the insulating pressing plate, the insulating sleeve is in forced fit with the external plug shell, the insulating pressing plate is axially limited between the insulating sleeve and the external plug shell, a positioning spring is embedded on the inner circumferential surface of the insulating pressing plate, and a positioning claw which is bent inwards and is used for being in axial stop fit with a corresponding mounting groove on the outer circumferential surface of the second outer conductor is arranged on the positioning spring.
Furthermore, a positioning spring is embedded on the inner peripheral surface of the third insulator, and a positioning claw which is bent inwards and is used for being in axial stop fit with a corresponding mounting groove on the outer peripheral surface of the third outer conductor is arranged on the positioning spring.
Furthermore, a first guide inclined plane matched with the first outer conductor is arranged at the front end of the second insulating medium, and a second guide inclined plane matched with the first outer conductor is arranged at the front end of the third insulating medium.
Furthermore, a first limiting table for preventing the second central conductor from moving forwards is arranged on the peripheral surface of the second central conductor; and a second limiting table for preventing the third central conductor from moving forwards is arranged on the peripheral surface of the third central conductor.
Furthermore, a connecting nut is rotatably sleeved outside the front end of the outer plug shell, an inserting cavity for the adapter shell to be inserted is formed between the connecting nut and the outer plug shell, and a first sealing ring in sealing fit with the end face of the adapter shell is arranged in the inserting cavity; and a second sealing ring which is in sealing fit with the peripheral surface of the adapter shell is embedded in the inner wall of the adapter shell.
Furthermore, in the process of inserting the external plug into the adapter, firstly, the first external conductor and the second external conductor are inserted, then, the adapter shell is matched with the external plug shell, and finally, the first central conductor and the second central conductor are inserted.
The present invention further provides an adapter, which is the aforementioned adapter and will not be described herein again.
The invention further provides an external plug, which is the external plug and is not described herein again.
The invention further provides an internal plug, which is the internal plug and is not described herein again.
By means of the technical scheme, the invention has the beneficial effects that: the connector adopts a triaxial structure, the outer conductor corresponding to the connector is a signal ground, the shell corresponding to the connector is a system ground, the signal ground and the system ground are of coaxial structures which are mutually insulated and closed, and a shell shielding layer is additionally added for a working signal, so that the working signal in the coaxial structure cannot be directly interfered by the external interference signal through the outer conductor, the working signal of the coaxial structure can only be indirectly interfered by the connector shell, the additional second-layer coaxial shielding structure has obvious attenuation loss on the external interference signal, and the interference of the interference signal after the attenuation loss can be obviously reduced. Because the signal ground and the system ground are completely separated, the potential difference between the signal ground and the system ground can not cause electromagnetic interference on the working signal, so that the shielding efficiency is obviously improved, the internal working signal is less prone to being interfered by the outside, the signal is less prone to being leaked, and the risk of signal leakage and the risk of electromagnetic interference are reduced.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a radio frequency coaxial connector in the prior art.
Fig. 2 is a schematic structural diagram of an inner plug, an adaptor and an outer plug in the embodiment of the triaxial deep water sealed connector of the present invention before plugging.
Fig. 3 is a schematic sectional view of the inner plug of the present invention.
Fig. 4 is a schematic cross-sectional view of the adapter of the present invention.
Fig. 5 is a schematic sectional view of the external plug of the present invention.
Fig. 6 is a schematic structural view of the first elastic contact piece or the second elastic contact piece in the present invention.
Fig. 7 is a schematic structural view of a positioning spring according to the present invention.
Detailed Description
The technical solution of the present invention is further described in detail below with reference to the accompanying drawings and preferred embodiments.
Embodiments of triaxial deepwater sealed connectors:
referring to fig. 1 to 7, the triaxial deep water sealed connector includes an adaptor 1, an inner plug 3 for being plugged with one end of the adaptor, and an outer plug 2 for being plugged with the other end of the adaptor, defining one end of the inner plug plugged with the adaptor as a front end of the inner plug, and one end of the outer plug plugged with the adaptor as a front end of the outer plug. When in use, the internal plug (i.e. the in-cabin connector) is positioned inside the equipment and works in an in-cabin environment; the adapter is arranged on the equipment panel, and one end of the adapter is butted with the cabin connector for use; the external plug works in a deep water environment and is used as an extravehicular deep water sealing connector for being connected with the adapter in a sealing mode.
The adapter 1 comprises an adapter coaxial structure and an adapter shell 11 coaxially assembled outside the adapter coaxial structure, wherein the adapter coaxial structure comprises a first outer conductor 12, a first insulating medium 13 arranged in the first outer conductor and a first central conductor 14 arranged in the first insulating medium, and a first insulator 15 is arranged between the first outer conductor and the adapter shell; the first center conductor 14 is the center pin. The adapter shell, the first outer conductor and the first central conductor form a three-layer coaxial structure.
The outer plug 2 comprises an outer plug coaxial structure and an outer plug housing 21 coaxially fitted outside the outer plug coaxial structure, the outer plug coaxial structure comprises a second outer conductor 22, a second insulating medium 23 arranged in the second outer conductor and a second central conductor 24 arranged in the second insulating medium, and a second insulator 25 is arranged between the second outer conductor and the adaptor housing. The outer plug shell, the second outer conductor and the second central conductor form a three-layer coaxial structure.
The inner plug 3 comprises an inner plug coaxial structure and a third insulator 31 coaxially fitted outside the inner plug coaxial structure, the inner plug coaxial structure comprising a third outer conductor 32, a third insulating medium 33 provided inside the third outer conductor 32, and a third central conductor 34 provided inside the third insulating medium; the second center conductor 24 and the third center conductor 34 are each a center receptacle for mating with the two ends of a center pin in an adapter.
In the outer plug 2, a first accommodating chamber 26 into which one end of the second outer conductor is inserted is formed between the second insulator 25 and the second outer conductor 22, and a first elastic contact piece 27 for elastically contacting the first outer conductor is provided in the first accommodating chamber 26, and the first elastic contact piece is fitted and positioned in a corresponding groove on the outer side of the second outer conductor. Similarly, a second accommodating cavity 35 for inserting the other end of the second outer conductor is formed between the third insulator 31 and the third outer conductor 32, a second elastic contact 36 for elastically contacting with the first outer conductor is arranged in the second accommodating cavity 35, and the second elastic contact is sleeved and positioned in a corresponding slot on the outer side of the third outer conductor. The first elastic contact 27 has the same structure as the second elastic contact, and as shown in fig. 7, the first elastic contact 27 is taken as an example and includes an annular main body 271, the annular main body has an axially through opening 272 for easy installation, and the side surface of the annular main body is bent outwards to form a plurality of elastic claws 273 which are circumferentially distributed and are used for elastically contacting with the inner wall of the first outer conductor, so that after the external plug is plugged into the adaptor, the second outer conductor can be stably contacted and conducted with the first outer conductor, and has vibration-resistant contact capability.
Further, the second insulator 25 includes an insulating pressing plate 251 and an insulating sleeve 252 disposed at the front end of the insulating pressing plate, the insulating sleeve 252 and the outer plug housing are in a forced fit to realize relative fixation, and the form of the forced fit may be that a forced fit protrusion is disposed outside the insulating sleeve; the insulation pressing plate 251 is axially limited between the rear end face of the insulation sleeve 252 and the step 211 of the external plug shell 21, a positioning spring 4 is embedded on the inner circumferential surface of the insulation pressing plate, a positioning claw 41 which is bent inwards and used for being matched with a corresponding mounting groove on the outer circumferential surface of the second outer conductor in a stopping mode is arranged on the positioning spring 4, a first flange 221 matched with the insulation pressing plate in a stopping mode is arranged on the outer circumferential surface of the second outer conductor 22 in a stopping mode, and therefore axial mounting and positioning of the coaxial structure of the external plug are achieved. Similarly, in the inner plug, the inner peripheral surface of the third insulator is also embedded with a positioning spring 4, the positioning spring is provided with a positioning claw 41 which is bent inwards and used for being matched with a corresponding mounting groove on the outer peripheral surface of the third outer conductor in a stopping way, and the outer peripheral surface of the third outer conductor 32 is provided with a second flange 321 matched with the insulator in a stopping way, so that the axial mounting and positioning of the coaxial structure of the inner plug are realized.
Preferably, the front end of the second insulating medium 23 is provided with a first guiding inclined surface 231 which is in plug-in guiding fit with the first outer conductor; the front end of the third insulating medium 33 is provided with a second guiding inclined surface 331 which is in plug-in guiding fit with the first outer conductor. The second/third insulating medium is arranged at the inserting end of the corresponding plug, and the guiding inserting of the coaxial structure of the inner/outer plug and the corresponding end of the first outer conductor is facilitated by means of corresponding guiding inclined planes.
In this embodiment, the outer peripheral surface of the second central conductor 24 is provided with a first limiting table 241 for preventing the second central conductor from moving forward, the second central conductor can be fixed with the second insulating medium in a conventional fixing form such as a snap fit, a forced fit, and the like, and the second insulating medium and the second outer conductor can also be fixed relatively in a forced fit manner. Similarly, a second limiting table 341 for preventing the third central conductor from moving forward is disposed on the outer peripheral surface of the third central conductor 34, the third central conductor may also be fixed to the third insulating medium in a conventional fixing manner such as a snap fit or a forced fit, and the third insulating medium and the third outer conductor may also be fixed relatively in a forced fit manner.
Furthermore, a flange 111 is arranged on the adapter housing 11, and the flange is matched with locking pieces such as a locking nut to realize the fixed assembly of the adapter and the equipment surface, and generally, a 0-shaped ring sealed with the end surface of the equipment panel is sleeved on the adapter housing. The third insulator outer wall on the inner plug has the external screw thread, and the inner wall of adapter and inner plug complex one end has the internal thread to realize the threaded connection of inner plug and adapter, the inner plug outside still overlaps and is equipped with outside nut, is used for locking inner plug in adapter one end behind threaded connection. A connecting nut 28 is rotatably sleeved outside the front end of the outer plug shell, an inserting cavity 29 for inserting the adapter shell is formed between the connecting nut 28 and the outer plug shell, the connecting nut is used for matching with the external thread of the adapter shell to realize inserting locking, a first sealing ring 210 which is in sealing fit with the end face of the adapter shell is arranged in the inserting cavity, and the first sealing ring is embedded in the end face of the second outer shell; in addition, the inner wall of the adapter housing is embedded with a second sealing ring 16 which is in sealing fit with the outer peripheral surface of the adapter housing, and by means of the double sealing design, a better insertion sealing effect between the adapter and the external plug is realized, so that the adapter is suitable for a deepwater environment.
A first receiving cavity 17 for receiving the third insulator is defined between the adaptor shell and the first outer conductor at one end of the adaptor matched with the inner plug; a second receiving cavity 18 for receiving the outer plug shell is enclosed between the adapter shell and the second outer conductor at one end of the adapter matched with the outer plug; the first insulating medium and the first insulator are both arranged at the middle position of the adapter, and the first insulator seals and isolates the first accommodating cavity and the second accommodating cavity.
The process of plugging the internal plug and the adapter is as follows: firstly, the third outer conductor is inserted and combined with one end of the first outer conductor in a guiding way; then, the third insulator is matched with the adapter shell to realize second-stage insertion guiding; finally, a central jack in the internal plug is plugged with a central pin in the adapter. And after the insertion is in place, the first outer conductor is inserted into the second accommodating cavity and is in elastic contact conduction with the second elastic contact piece.
The external plug and the adapter are plugged together as follows: firstly, the second outer conductor is inserted into the other end of the first outer conductor in a guiding way; then, the outer plug shell is matched with the adapter shell to realize second-stage insertion guiding; finally, a central jack in the external plug is plugged with a central pin in the adapter. After the insertion is in place, the first outer conductor is inserted into the first accommodating cavity and is in elastic contact conduction with the first elastic contact piece; meanwhile, the insertion end face of the adapter shell is in extrusion fit with the first sealing ring, and the second sealing ring is in extrusion fit with the outer peripheral face of the second outer conductor, so that the deep-water sealing insertion effect is achieved.
After the inner plug, the adapter and the outer plug are mutually inserted, radio frequency signals or low-frequency signals can be transmitted between the inner plug and the outer plug, the shell of the adapter and the shell of the outer plug are shielded and conducted to cover signal transmission channels of all conductors in the connector, the anti-interference performance of the deep water sealing connector is improved, and signal leakage is reduced.
Embodiment of the adapter:
the adaptor is the adaptor described in the above embodiment of the triaxial deep water sealed connector, and details are not described here.
Examples of external plugs:
the external plug is the external plug described in the above embodiment of the triaxial deep water sealed connector, and details are not described here.
Example of internal inset:
the inner plug is the inner plug described in the above embodiment of the triaxial deep water sealed connector, and details are not described here.
The foregoing is only a preferred embodiment of the present invention and is not detailed in the prior art; any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention will still fall within the scope of the technical solution of the present invention by those skilled in the art without departing from the technical solution of the present invention.

Claims (12)

1. The coaxial deep water sealing connector of three, including the adapter, be used for inserting the inside plug that closes and be used for inserting the outside plug that closes with the adapter other end with adapter one end, its characterized in that:
the adapter comprises an adapter coaxial structure and an adapter shell coaxially assembled outside the adapter coaxial structure, wherein the adapter coaxial structure comprises a first outer conductor, a first insulating medium arranged in the first outer conductor and a first central conductor arranged in the first insulating medium, and a first insulator is arranged between the first outer conductor and the adapter shell;
the outer plug comprises an outer plug coaxial structure and an outer plug shell coaxially assembled outside the outer plug coaxial structure, the outer plug coaxial structure comprises a second outer conductor, a second insulating medium arranged in the second outer conductor and a second central conductor arranged in the second insulating medium, and a second insulator is arranged between the second outer conductor and the adapter shell;
the inner plug comprises an inner plug coaxial structure and a third insulator coaxially assembled outside the inner plug coaxial structure, and the inner plug coaxial structure comprises a third outer conductor, a third insulating medium arranged in the third outer conductor and a third central conductor arranged in the third insulating medium.
2. Triaxial deep water sealing connector according to claim 1, wherein:
a first accommodating cavity for inserting one end of the second outer conductor is formed between the second insulator and the second outer conductor, a first elastic contact piece used for elastically contacting with the first outer conductor is arranged in the first accommodating cavity, and the first elastic contact piece is sleeved on the outer side of the second outer conductor;
a second accommodating cavity for inserting the other end of the second outer conductor is formed between the third insulator and the third outer conductor, a second elastic contact piece used for being in elastic contact with the first outer conductor is arranged in the second accommodating cavity, and the second elastic contact piece is sleeved on the outer side of the third outer conductor.
3. Triaxial deep water sealing connector according to claim 2, wherein: the first elastic contact piece and the second elastic contact piece both comprise annular main bodies, and the side faces of the annular main bodies are bent outwards to form a plurality of elastic claws which are distributed circumferentially and are used for elastically contacting with the inner wall of the first outer conductor.
4. Triaxial deep water sealing connector according to claim 1, wherein: the second insulator comprises an insulating pressing plate and an insulating sleeve arranged at the front end of the insulating pressing plate, the insulating sleeve is in forced fit with the outer plug shell, the insulating pressing plate is axially limited between the insulating sleeve and the outer plug shell, a positioning spring is embedded on the inner circumferential surface of the insulating pressing plate, and a positioning claw which is bent inwards and used for axially stopping and matching with a corresponding mounting groove on the outer circumferential surface of the second outer conductor is arranged on the positioning spring.
5. Triaxial deep water sealing connector according to claim 1, wherein: and a positioning spring is embedded on the inner peripheral surface of the third insulator, and a positioning claw which is bent inwards and is used for being matched with a corresponding mounting groove on the outer peripheral surface of the third outer conductor in an axial stop manner is arranged on the positioning spring.
6. Triaxial deep water sealing connector according to claim 1, wherein: the front end of the second insulating medium is provided with a first guide inclined plane matched with the first outer conductor, and the front end of the third insulating medium is provided with a second guide inclined plane matched with the first outer conductor.
7. Triaxial deep water sealing connector according to claim 1, wherein: a first limiting table for preventing the second central conductor from moving forwards is arranged on the peripheral surface of the second central conductor; and a second limiting table for preventing the third central conductor from moving forwards is arranged on the peripheral surface of the third central conductor.
8. Triaxial deep water sealing connector according to claim 1, wherein: the outer part of the front end of the outer plug shell is rotatably sleeved with a connecting nut which is used for matching with the external thread on the adapter shell; an inserting cavity for inserting the adapter shell is formed between the connecting nut and the external plug shell, and a first sealing ring in sealing fit with the end face of the adapter shell is arranged in the inserting cavity; and a second sealing ring which is in sealing fit with the peripheral surface of the adapter shell is embedded in the inner wall of the adapter shell.
9. Triaxial deep water sealing connector according to claim 1, wherein: in the process of inserting the external plug and the adapter, firstly, the first outer conductor and the second outer conductor are guided and inserted, then, the adapter shell is matched with the external plug shell, and finally, the first central conductor and the second central conductor are inserted and combined.
10. The adapter, its characterized in that: the adaptor is as claimed in any one of claims 1 to 9.
11. External plug, its characterized in that: the external plug is according to any one of claims 1-9.
12. Internal plug, its characterized in that: the internal plug is as claimed in any one of claims 1 to 9.
CN202210877240.4A 2022-07-25 2022-07-25 Three-coaxial deep water sealing connector and internal plug, adapter and external plug thereof Pending CN115173105A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210877240.4A CN115173105A (en) 2022-07-25 2022-07-25 Three-coaxial deep water sealing connector and internal plug, adapter and external plug thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210877240.4A CN115173105A (en) 2022-07-25 2022-07-25 Three-coaxial deep water sealing connector and internal plug, adapter and external plug thereof

Publications (1)

Publication Number Publication Date
CN115173105A true CN115173105A (en) 2022-10-11

Family

ID=83497461

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210877240.4A Pending CN115173105A (en) 2022-07-25 2022-07-25 Three-coaxial deep water sealing connector and internal plug, adapter and external plug thereof

Country Status (1)

Country Link
CN (1) CN115173105A (en)

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