CN116937240A - Bearing watertight electric transmission connecting assembly - Google Patents

Bearing watertight electric transmission connecting assembly Download PDF

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Publication number
CN116937240A
CN116937240A CN202310962851.3A CN202310962851A CN116937240A CN 116937240 A CN116937240 A CN 116937240A CN 202310962851 A CN202310962851 A CN 202310962851A CN 116937240 A CN116937240 A CN 116937240A
Authority
CN
China
Prior art keywords
plug
socket
core
shell
slip ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202310962851.3A
Other languages
Chinese (zh)
Other versions
CN116937240B (en
Inventor
周建平
张锋
陶春辉
张国堙
陈宁特
朱云海
张金辉
王玫怡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Second Institute of Oceanography MNR
Original Assignee
Second Institute of Oceanography MNR
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Second Institute of Oceanography MNR filed Critical Second Institute of Oceanography MNR
Priority to CN202310962851.3A priority Critical patent/CN116937240B/en
Publication of CN116937240A publication Critical patent/CN116937240A/en
Application granted granted Critical
Publication of CN116937240B publication Critical patent/CN116937240B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • H01R13/40—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
    • H01R13/62—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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/02—Details for dynamo electric machines
    • H01R39/08—Slip-rings

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The invention discloses a bearing watertight electric transmission connecting component which comprises a plug slip ring fixing piece, a plug shell, a threaded connecting piece, a clamping sleeve, a tail shell, a plug locking ring, a 4-core plug, a 4-core socket, a socket shell, a plug 4-core electric slip ring, a plugging guide piece, a socket 4-core electric slip ring, a socket slip ring fixing piece and a socket locking ring. When in use, the plug part and the socket part are assembled respectively, and then the plug part and the socket part are plugged together to form the complete bearing watertight electric transmission connection assembly. The bearing watertight electric transmission connecting component separates electric connection from force connection, can bear 15t of tensile force while transmitting electric signals or electric power, and can meet the working condition requirement of large tensile force or pressure; the connecting component connects single or a plurality of devices only with interfaces of the connecting component, the plug and socket parts form a sealed cavity after connection, and the devices which do not have waterproof capability can be placed in the sealed cavity.

Description

Bearing watertight electric transmission connecting assembly
Technical Field
The invention belongs to the technical field of underwater connectors, and particularly relates to a bearing watertight electric transmission connecting assembly.
Background
The underwater connectors are generally connected in a threaded mode, a bayonet mode, a direct-insertion mode, a push-pull mode and the like, and are widely applied to underwater electric power or electric signal transmission, however, most connectors cannot bear large tensile force, and although some connectors can meet the working condition of large tensile force, the size is larger, and the application range is limited. As disclosed in the patent application CN202110535038.9, a fast self-adaptive rotary plug underwater bearing connector is large in size and cannot form a sealed space in which other devices can be placed.
Disclosure of Invention
The invention aims to provide a small bearing watertight electric transmission connecting component which is used for connecting a small-diameter or small-volume component under a large-tension working condition and separating electric connection and force connection; the structure can normally work under the working condition of 15t pulling force, and when the device is rotatably installed, an internal cable cannot be influenced, two devices can be respectively connected to two ends of the connecting component, and a plurality of devices can be connected through the connecting component. The connecting component can also form a sealed cavity inside, so that the sealed cavity is free from water inflow when the connecting component is used underwater, and other electronic components and other devices without waterproof functions can be distributed in the sealed cavity, thereby filling the blank of the connector.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
the utility model provides a bearing watertight electricity transmission coupling assembling, includes plug sliding ring mounting, plug casing, threaded connection spare, screens cover, tail shell, plug locking ring, 4 core plugs, 4 core sockets, socket casing, 4 core electrical sliding rings of plug, inserts and closes the guide, 4 core electrical sliding rings of socket, socket sliding ring mounting and socket locking ring. The plug slip ring fixing piece is used for fixing the plug 4-core electric slip ring on the plug shell and preventing the plug 4-core electric slip ring from moving in position, and is fixed with the plug shell through screws; the 4-core plug is fixedly arranged in the plug shell, and the plug shell is used for protecting the 4-core plug, carrying out tensile force and preventing water from entering the inner cavity; the 4-core socket is fixedly arranged in the socket shell, and the socket shell is used for protecting the 4-core socket and is used for bearing tensile force; the threaded connector is used for connecting the plug shell and the socket shell through threads so as to tightly jack the 4-core plug and the 4-core socket which are inserted together; the clamping sleeve is arranged between the threaded connecting piece and the tail shell and used for limiting the position of the threaded connecting piece after the installation is finished and for bearing the tensile force; the tail shell is arranged outside the socket shell and connected with the socket shell through threads, and has the functions of bearing tensile force and preventing water from entering the inner cavity; the plug locking ring is used for fixing the 4-core plug on the plug shell, and the socket locking ring is used for fixing the 4-core socket on the socket shell; the 4-core plug and the 4-core socket are used for transmitting electric power or electric signals; the plug 4-core electric slip ring has the function that after the 4-core cable is welded with the plug 4-core electric slip ring, one end of the cable is not affected when the other end of the cable rotates, so that the plug 4-core electric slip ring is suitable for the rotation installation of a shell; the plugging guide piece is arranged in the plug shell and is used for facilitating the plugging of the 4-core socket and the 4-core plug, and is connected with the 4-core plug through threads; the socket 4-core electric slip ring is fixed on the tail shell through a socket slip ring fixing piece, and the socket 4-core electric slip ring has the function that after a 4-core cable is welded with the socket 4-core electric slip ring, one end of the cable is not affected when the other end rotates; the socket slip ring fixing piece is connected with the tail shell through bolts and is used for fixing the socket 4-core electric slip ring. The plug shell and the tail shell are respectively connected with other devices which are only provided with interfaces of the connecting assembly, and after the connection, a sealing cavity is formed inside the connecting assembly and can be used for placing some devices which are not waterproof. The cavity can be reserved in other devices connected with the plug shell and the tail shell, and a sealing cavity can be formed after the device is connected with the connecting component and used for placing waterproof devices.
In the above technical scheme, further, the insert guide is disposed on the 4-core plug, an internal thread is disposed on an inner wall of the insert guide, an external thread is disposed outside the 4-core plug, and the internal thread and the external thread are completely engaged by rotation after the 4-core plug is aligned with the insert guide, so that the insert guide is mounted on the 4-core plug.
Further, the clamping sleeve is of a cylindrical structure formed by connecting two semi-cylinders.
The beneficial effects of the invention are as follows:
the bearing watertight electric connection assembly adopts an electric slip ring and the like to realize the separation of electric connection and force connection, and can meet the working condition requirements of large tension or pressure.
The electric signal or the electric power can bear the tensile force of 15t while being transmitted, and the bearable tensile force meets the requirements of most working conditions.
After the components are assembled, the components can be connected in a threaded mode, and the strength requirement of the components is ensured.
The connecting assembly can be used for connecting single or multiple devices with only connecting assembly interfaces, a sealing cavity can be formed inside the connecting assembly after connection, and devices which do not have waterproof capability can be placed in the sealing cavity.
Drawings
FIG. 1 is a diagram of the completed state of the electrical connection assembly of the bearing watertight;
FIG. 2 is a state diagram of the assembly without the cartridge, the uninstalled tail housing and the retention sleeve;
FIG. 3 is a state diagram of the component without the cartridge inserted and installed;
FIG. 4 is a state diagram of the 4-core plug and socket after being plugged in and the clamping sleeve is not installed;
FIG. 5 is a state diagram of the plug and socket in place after the threaded connection has been rotated to the plug housing, with the retention sleeve not yet installed;
FIG. 6 is a front view of the socket portion (with the retention sleeve) of the force bearing watertight electrical transmission connection assembly;
FIG. 7 is a left side view of the socket portion (with a retaining sleeve) of the force bearing watertight electrical transmission connection assembly;
FIG. 8 is a perspective view of a socket portion (with a retaining sleeve) of the force bearing watertight electrical transmission connection assembly;
FIG. 9 is a front view of the male portion of the force bearing watertight electrical transmission connection assembly;
FIG. 10 is a left side view of the male portion of the force bearing watertight electrical transmission connection assembly;
FIG. 11 is a perspective view of a plug portion of the force bearing watertight electrical transmission connection assembly;
wherein 1 is plug slip ring mounting, 2 is plug casing, 3 is threaded connection, 4 is the screens cover, 5 is the tail shell, 6 is plug locking ring, 7 is 4 core plug, 8 is 4 core socket, 9 is socket casing, 10 is plug 4 core electrical slip ring, 11 is the plug guide, 12 is socket 4 core electrical slip ring, 13 is socket slip ring mounting, 14 is socket locking ring.
Detailed Description
As shown in fig. 1, the connecting assembly for the bearing watertight electric transmission of the invention comprises a plug slip ring fixing piece 1, a plug shell 2, a threaded connecting piece 3, a clamping sleeve 4, a tail shell 5, a plug locking ring 6, a 4-core plug 7, a 4-core socket 8, a socket shell 9, a plug 4-core electric slip ring 10, a plugging guide piece 11, a socket 4-core electric slip ring 12, a socket slip ring fixing piece 13 and a socket locking ring 14. Wherein the plug slip ring fixing piece 1 is used for fixing the plug 4 core electric slip ring 10 on the plug shell 2 and preventing the position of the plug 4 core electric slip ring from moving, and the plug slip ring fixing piece 1 is fixed with the plug shell 2 through screws; the 4-core plug 7 is fixedly arranged in the plug housing 2, and the plug housing 2 is used for protecting the 4-core plug 7 and is used for bearing tensile force and preventing water from entering an inner cavity; the 4-core socket 8 is fixedly arranged in the socket shell 9, and the socket shell 9 is used for protecting the 4-core socket 8 and for bearing tensile force; the threaded connector 3 is used for connecting the plug housing 2 and the socket housing 9 through threads so as to tightly prop the 4-core plug 7 and the 4-core socket 8 which are plugged together; the clamping sleeve 4 is arranged between the threaded connecting piece 3 and the tail shell 5 and used for limiting the position of the threaded connecting piece 3 after the installation is finished; the tail shell 5 is arranged outside the socket shell 9 and connected with the socket shell 9 through threads, and has the functions of bearing tensile force and preventing water from entering the inner cavity; the plug locking ring 6 is used for fixing the 4-core plug 7 on the plug housing 2, and the socket locking ring 14 is used for fixing the 4-core socket 8 on the socket housing 9; the function of the 4-core plug 7 and the 4-core socket 8 is to transmit electric power or an electric signal; the plug 4-core electric slip ring 10 has the function that one end of the cable is not affected when rotating, so that the electric slip ring is suitable for the rotation installation of the shell; the plugging guide piece 11 is arranged inside the plug shell 2 and is used for facilitating plugging of the 4-core socket and the 4-core plug 7, and is connected with the 4-core plug 7 through threads; the socket 4 core electric slip ring 12 is fixed on the tail shell 5 through a socket slip ring fixing piece 13, and the socket 4 core electric slip ring 12 has the function that one end of a cable is not affected when the other end rotates; the socket slip ring fixing piece 13 is connected with the tail shell 5 through bolts and is used for fixing the socket 4 core electric slip ring 12.
The plugging guide piece 11 is arranged on the 4-core plug 7, an inner thread is arranged on the inner wall of the plugging guide piece 11, an outer thread is arranged outside the 4-core plug 7, and the inner thread and the outer thread are completely meshed through rotation after the 4-core plug 7 is aligned with the plugging guide piece 11, so that the plugging guide piece 11 is installed on the 4-core plug 7.
The clamping sleeve 4 is of a cylindrical structure formed by connecting two semi-cylinders. During installation, the installation position is found firstly, and then the cylinder is reassembled through connection modes such as bolts, buckles and the like.
The invention relates to an assembly and insertion process of a bearing watertight electric transmission connecting component, which comprises the following steps:
first, the plug portion is assembled (as in fig. 9-11), with the specific steps of: the 4-core plug 7 is installed on the plug housing 2, the 4-core plug 7 is fixed through the plug locking ring 6, after the lead wire of the 4-core plug 7 is connected with the plug 4-core electric slip ring 10, the plug 4-core electric slip ring 10 is placed on the plug slip ring fixing piece 1, the plug slip ring fixing piece 1 is installed on the plug housing 2, and the plugging guide piece 11 is installed on the 4-core plug 7, so far, the plug part of the bearing watertight electric transmission connection assembly is assembled (as shown in fig. 2).
Then, the socket part (as shown in fig. 6-8) is assembled, the 4-core socket 8 is firstly installed on the socket shell 9, the 4-core socket 8 is fixed through the socket locking ring 14, the threaded connector 3 penetrates through the socket shell 9 (as shown in fig. 2), the tail shell 5 is installed on the socket shell 9, after the lead wire of the 4-core socket 8 is connected with the 4-core electric slip ring 12 of the socket, the 4-core electric slip ring 12 of the socket is placed in the socket slip ring fixing piece 13, and finally the socket slip ring fixing piece 13 is connected with the tail shell 5, so that the socket part of the bearing watertight electric transmission connection assembly without the clamping sleeve 4 is also assembled, and the whole state is shown in fig. 3.
Finally, after aligning the 4-core plug 7 and the 4-core socket 8, inserting the 4-core plug and the 4-core socket by means of the inserting guide piece 11 (as shown in fig. 4), rotating the threaded connecting piece 3 to the bottom (as shown in fig. 5), connecting the plug part and the socket part of the bearing watertight electric transmission connecting component together, and finally installing the clamping sleeve 4, wherein the withdrawing distance of the limiting threads is smaller than 0.5mm, so as to obtain the final complete bearing watertight electric transmission connecting component (as shown in fig. 1).
When the waterproof electric transmission connector is used, the plug part and the socket part of the bearing watertight electric transmission connector are assembled respectively, the sealing rings are installed on the plug shell 2 and the tail shell 5, the complete bearing watertight electric transmission connector can be assembled firstly or the plug shell 2 and the tail shell 5 are installed on required equipment according to requirements, when the assembled plug part and socket part are installed on the equipment, the plug part and the socket part are connected with the equipment shell which only has a connecting interface, a closed cavity is formed inside the equipment and the connecting assembly respectively, other waterproof electronic components and other equipment can be placed in the closed cavity, and finally the complete bearing watertight electric transmission connector is assembled by plugging.

Claims (7)

1. The bearing watertight electric transmission connecting component is characterized by comprising a plug shell, a threaded connecting piece, a clamping sleeve, a tail shell, a 4-core plug, a 4-core socket, a socket shell, a 4-core plug electric slip ring, a 4-core socket electric slip ring and a plugging guide piece; the 4-core plug is connected with the 4-core socket in an inserting way through the inserting guide piece; the 4-core plug is fixedly arranged in the plug shell, and the plug shell is used for protecting the 4-core plug and is used for bearing tensile force; the 4-core socket is fixedly arranged in the socket shell, and the socket shell is used for protecting the 4-core socket and is used for bearing tensile force; the plug shell is connected with the socket shell through the threaded connecting piece, so that the 4-core plug and the 4-core socket which are connected in a plugging manner are mutually propped up; the clamping position is sleeved between the threaded connecting piece and the tail shell and used for limiting the position of the threaded connecting piece; the tail shell is arranged outside the socket shell and is used for protecting the socket shell and carrying pulling force; the plug 4-core electric slip ring is fixed on the plug shell and is used for enabling one end of the cable to be unaffected when the other end of the cable rotates after the 4-core cable is welded with the plug 4-core electric slip ring, so that the plug is suitable for rotating and installing the shell; the socket 4-core electric slip ring is fixed on the tail shell and is used for enabling one end of the cable to be unaffected when the other end of the cable rotates after the 4-core cable is welded with the socket 4-core electric slip ring, so that the socket is suitable for rotating and installing a shell; the plug shell and the tail shell are respectively connected with other devices only provided with interfaces of the connecting assembly, and a sealing cavity is formed inside the connecting assembly after the connection.
2. A load bearing watertight electrical connection assembly as claimed in claim 1, wherein the 4-core plug is secured inside the plug housing by a plug locking ring.
3. A power bearing watertight electrical connection assembly as claimed in claim 1, wherein the 4-core socket is secured inside the socket housing by socket locking rings.
4. The electrical power-transfer connection assembly of claim 1, wherein the plug 4-core electrical slip ring is secured to the plug housing by a plug slip ring mount, the plug slip ring mount being secured to the plug housing.
5. The electrical power-transfer connection assembly of claim 1, wherein the socket 4-core electrical slip ring is secured to the tail housing by a socket slip ring mount, the socket slip ring mount being secured to the tail housing.
6. The electrical power transmission connection assembly of claim 1, wherein the mating guide is provided on the 4-core plug, the inner wall of the mating guide is provided with internal threads, the outer portion of the 4-core plug is provided with external threads, and the internal threads and the external threads are fully engaged by rotation after the 4-core plug is aligned with the mating guide, thereby mounting the mating guide on the 4-core plug.
7. The electrical load bearing watertight transmission connection assembly of claim 1 wherein the detent sleeve is a cylindrical structure formed by two semi-cylinders connected.
CN202310962851.3A 2023-08-02 2023-08-02 Bearing watertight electric transmission connecting assembly Active CN116937240B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310962851.3A CN116937240B (en) 2023-08-02 2023-08-02 Bearing watertight electric transmission connecting assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310962851.3A CN116937240B (en) 2023-08-02 2023-08-02 Bearing watertight electric transmission connecting assembly

Publications (2)

Publication Number Publication Date
CN116937240A true CN116937240A (en) 2023-10-24
CN116937240B CN116937240B (en) 2024-04-12

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200360126Y1 (en) * 2004-05-22 2004-08-31 이수황 Cable coupler for industrial
US20110177697A1 (en) * 2010-01-20 2011-07-21 Teledyne Odi, Inc. Harsh environment rotary joint electrical connector
CN203481498U (en) * 2013-09-03 2014-03-12 中国船舶重工集团公司第七一五研究所 Eight-core bearing watertight electric connector
CN206820168U (en) * 2017-06-12 2017-12-29 冯孝兰 Underwater electrical connector
CN113745887A (en) * 2021-08-23 2021-12-03 沃姆环境设备启东有限公司 Movable connector
CN114267988A (en) * 2021-11-29 2022-04-01 中航光电科技股份有限公司 Detachable heavy current deep water sealed cable subassembly

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200360126Y1 (en) * 2004-05-22 2004-08-31 이수황 Cable coupler for industrial
US20110177697A1 (en) * 2010-01-20 2011-07-21 Teledyne Odi, Inc. Harsh environment rotary joint electrical connector
CN203481498U (en) * 2013-09-03 2014-03-12 中国船舶重工集团公司第七一五研究所 Eight-core bearing watertight electric connector
CN206820168U (en) * 2017-06-12 2017-12-29 冯孝兰 Underwater electrical connector
CN113745887A (en) * 2021-08-23 2021-12-03 沃姆环境设备启东有限公司 Movable connector
CN114267988A (en) * 2021-11-29 2022-04-01 中航光电科技股份有限公司 Detachable heavy current deep water sealed cable subassembly

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