CN115693266A - Underwater plugging electric connector with double redundant sealing structures - Google Patents
Underwater plugging electric connector with double redundant sealing structures Download PDFInfo
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- CN115693266A CN115693266A CN202211248544.0A CN202211248544A CN115693266A CN 115693266 A CN115693266 A CN 115693266A CN 202211248544 A CN202211248544 A CN 202211248544A CN 115693266 A CN115693266 A CN 115693266A
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Abstract
The invention discloses an underwater plugging electric connector with a dual-redundancy sealing structure, which adopts two groups of radial seals and two groups of oil bags to construct a cavity packaging structure with double oil filling pressure balance, wherein after the underwater plugging electric connector is plugged and pulled for many times in a deep sea sediment environment, the first radial seal is worn, a small amount of seawater which permeates enters the first oil bag under the action of self gravity to precipitate, and cannot directly permeate into the second oil filling cavity to cause failure of electrode coupling, and because the front cavity and the rear cavity of the second radial dynamic seal are both in an oil filling environment, oil film lubrication can be formed between friction pairs of the second dynamic seal, so that the axial friction force caused by the dynamic seal is greatly reduced. The invention greatly improves the application depth of the underwater plugging and unplugging electric connector, can be used in the full-sea deep environment (not less than 11000 m), increases the plugging and unplugging times under the underwater high-pressure environment, and has higher application reliability.
Description
Technical Field
The invention relates to the technical field of underwater engineering connection, in particular to an underwater plugging electric connector with a dual-redundancy sealing structure.
Background
The underwater plugging electric connector is used as an important part of an underwater engineering project, is widely applied to a seabed observation network, an ocean drilling and production platform, ocean energy development and various kinds of seabed engineering equipment, has more and more requirements on the underwater plugging electric connector, and also has higher requirements on performance indexes, reliability and service life.
In recent years, china has made outstanding progress in the technical field of dry plugging and unplugging connectors, related patents are more, and related products are widely applied underwater, but the technology can only be plugged and unplugged on the land and applied underwater, and cannot be applied to some engineering projects needing underwater connection; however, the electrical connector developed and developed domestically at present and having underwater plugging capability has many technical problems, such as: shenyang Xinghua aeronautical electrical apparatus Limited liability company invented "a wet plugging and unplugging sealing underwater connector", patent number "CN209001274U", the technology can be used for shallow underwater plugging and unplugging, but because an oil-filled pressure balance structural form is not adopted, the pressure difference between the inside and the outside of a connector cavity is large in a deep water environment, so that the additional axial force is large during plugging and unplugging, and effective plugging and unplugging cannot be carried out; the invention relates to an underwater wet-plugging and unplugging pressure balance electric connector invented by Zhejiang university, and the patent number is 202011438788.6, which adopts a mode of oil-filled pressure balance in a jack cavity to balance the pressure of the inner cavity and the outer cavity of the connector, so as to realize effective plugging and unplugging in deep sea environment. Although this patent has adopted the form of oil charge pressure balance, but only a set of sealing washer protects to the radial dynamic seal that appears the seepage most easily, because under the deep sea superhigh pressure environment, the contact pressure between radial sealing washer and shuttle pin or electric mortiser needle axle is not less than sea water ambient pressure, and the contact interface of dynamic seal also very easily arouses the invasion of seabed silt at the connector plug in-process, causes the frictional wear to radial sealing washer in the plug in-process, arouses the infiltration of sea water, connector electricity core electrode coupling inefficacy.
Disclosure of Invention
Based on the technical scheme, the invention provides the underwater plugging and unplugging electric connector with the double-redundancy sealing structure, and solves the technical problem that the radial sealing ring of the existing underwater plugging and unplugging electric connector is easy to lose efficacy to cause the coupling failure of the electric core electrode of the connector.
In order to realize the purpose of the invention, the invention is realized by adopting the following technical scheme:
the utility model provides an insert electric connector under water of dual redundant seal structure, includes plug pin end I and jack end II, plug pin end I includes contact pin encapsulation casing and electric plug pin, jack end II includes:
the jack encapsulates the shell;
the insulating support is fixedly connected in the jack packaging shell;
the jack end cover is positioned at one end of the jack packaging shell and is fixedly connected with the insulating support in a sealing manner; a through hole is formed in the jack end cover, and a first radial seal is arranged in the through hole of the jack end cover;
the insulating support tail end is fixedly connected with the other end of the jack packaging shell;
the first oil bag is hermetically arranged on the insulating support and the tail end of the insulating support; the first oil bag, the insulating support, the tail end of the insulating support and the jack end cover form a first oil filling cavity in an enclosing mode;
the jack battery cell assembly is fixed on the insulating support and the tail end of the insulating support; the jack plug assembly comprises a shuttle pin shaft, a second radial seal, a jack body, a connector, a pressure spring, a tail end body and a second oil bag; the jack body is provided with a through hole, and the second radial seal is arranged in the through hole of the jack body; the connector is used for connecting the jack body and the tail end body; the shuttle pin shaft is in sealing fit with the second radial seal, the shuttle pin shaft is in sealing fit with the first radial seal, and the part of the shuttle pin shaft is positioned in the connecting body; the pressure spring is positioned in the connecting body and is used for supporting the tail end body and the shuttle pin shaft; the second oil bag is used for connecting the jack body and the tail end body, oil passing holes are formed in the jack body and the connecting body, and a second oil filling cavity is formed by the jack body, the second oil bag and the tail end body;
the second oil-filled cavity is located in the first oil-filled cavity.
According to the underwater plugging electric connector with the double redundant sealing structure, the first oil filling cavity comprises a left oil filling cavity and a right oil filling cavity, the left oil filling cavity is located between the insulating support and the jack end cover, and the right oil filling cavity is located between the insulating support and the tail end of the insulating support; the insulating support is provided with a through hole for communicating the left oil filling cavity and the right oil filling cavity;
the underwater plugging electric connector with the double redundant sealing structure, the through holes for communicating the left oil-filled cavity and the right oil-filled cavity comprise a central through hole and a plurality of peripheral through holes positioned around the central through hole.
According to the underwater plugging electric connector with the double redundant sealing structure, the peripheral through holes are inclined through holes, and the distance between the peripheral through holes and the central through hole is gradually reduced in the direction from the tail end of the insulating support to the jack end cover.
According to the underwater plugging electric connector with the double redundant sealing structures, the end face, located on the left oil filling cavity, of the insulating support is an inner conical surface, and the lowest end of the inner conical surface is located at the central through hole.
According to the underwater plugging electric connector with the dual-redundancy sealing structure, the jack end cover is provided with the oil filling hole, and the oil filling hole is sealed through the first plug.
According to the underwater plugging electric connector with the dual-redundancy sealing structure, the jack body is provided with the elastic body pressing ring, and the elastic body pressing ring is used for adjusting the end face extrusion degree of the second radial seal.
According to the underwater plugging electric connector with the double redundant sealing structure, the jack cap is arranged in the jack body and connected with the connecting body, the crown spring is arranged in the jack cap, and the shuttle pin shaft penetrates through the jack cap and the crown spring.
The underwater plugging electric connector with the double redundant sealing structure is characterized in that the insulating support is provided with an oil injection cavity for injecting oil into the jack electric core assembly, and the oil passing hole of the jack body is positioned in the oil injection cavity.
According to the underwater plugging electric connector with the dual-redundancy sealing structure, the insulating support is provided with the radial oil injection channel communicated with the oil injection cavity, and the radial oil injection channel is sealed through the second plug.
Compared with the prior art, the invention has the advantages and positive effects that: the underwater plugging electric connector with the dual-redundancy sealing structure adopts two groups of radial seals and two groups of oil bags, a cavity packaging structure with double oil filling pressure balance is constructed, after the underwater plugging electric connector is plugged and pulled for many times in a deep sea sediment environment, the first radial seal is abraded, a small amount of seawater which permeates enters the first oil bag under the action of self gravity to precipitate, and cannot directly permeate into the second oil filling cavity to cause failure of electrode coupling, and because the front cavity and the rear cavity of the second radial dynamic seal are both in an oil filling environment, oil film lubrication can be formed between the friction pairs of the second dynamic seal, and the axial friction force caused by the dynamic seal is greatly reduced. The invention greatly improves the application depth of the underwater plugging and unplugging electric connector, can be used in the full-sea deep environment (not less than 11000 m), increases the plugging and unplugging times under the underwater high-pressure environment, and has higher application reliability.
Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 4 is a cross-sectional view taken along line C-C of FIG. 2;
FIG. 5 is a cross-sectional view of an electrical plug pin according to an embodiment of the present invention;
fig. 6 is a cross-sectional view of a jack cell assembly in accordance with an embodiment of the present invention;
fig. 7 is a schematic diagram of a plugging process according to an embodiment of the present invention.
Description of reference numerals:
a pin packaging shell 1; an electrical pin 2; a metallic copper conductor 3; a polymer insulating material 4; a radial seal ring 5; a rear end cavity 6; a jack core assembly 7; an insulating support 8; an insulated support tail end 9; a first radial seal 10; a first oil pocket 11; a first oil pocket locking pressing ring 12; a jack end cap 13; a jack housing 14; a mounting hole 15; a shoulder 16; mounting holes 17; a shoulder 18; a first plug 19; a radial seal ring 20; a mounting bolt 21; a shuttle pin 22; a through hole 23; the inclined through-hole 24; an inner conical surface 25; a first oil filled cavity 26; a left oil charge chamber 27; a right oil filled cavity 28; water permeable holes 29; positioning pins 30; a screw 31; a second radial seal 32; an elastomer pressing ring 33; a jack body 34; a crown spring 35; a jack cap 36; a connecting body 37; a pressure spring 38; a tail body 39; a second oil pocket 40; an oil injection chamber 41; the oil injection passage 42; a second plug 43; a composite seal ring 44; a radial seal ring 45; a radial seal ring 46; a second oil filled cavity 47.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and examples.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 to 7, the underwater pluggable electrical connector with the dual redundant sealing structure in this embodiment includes a pin end I and a jack end II, where the pin end I and the jack end II are integrated with coupling electric cores with the same number and the same hole site, the number of the coupling electric cores may be single core or multiple cores, and the number of the coupling electric cores in this embodiment is 12 cores.
The pin end I includes a pin enclosure housing 1 and an electrical pin 2.
As shown in fig. 2, 3 and 5, the electrical contact pin 2 is formed by combining a metal copper conductor 3 and a polymer insulating material 4 into a whole through a molding process such as cementing, vulcanization or die pressing, so that the electrical contact pin has strong bonding strength and can prevent seawater from permeating into a contact interface of the two; the electric contact pin 2 is hermetically installed on the contact pin packaging shell 1 through a group of radial seal rings 5, so that a rear end cavity 6 of a contact pin end I forms a closed cavity, the rear end cavity 6 can be connected with a watertight cable in a glue injection encapsulation and vulcanization mode, and can also be connected with an oil filling pipe in a glue injection encapsulation and oil filling mode.
The jack terminal II mainly comprises a jack packaging shell 14, an insulating support 8, a jack end cover 13, an insulating support tail end 9, a first oil bag 11 and a jack electric core assembly 7.
The insulating support 8 is fixedly attached within the jack housing 14. The jack end cover 13 is positioned at one end of the jack packaging shell 14, and the jack end cover 13 is fixedly connected with the insulating support 8 in a sealing way; a through hole is formed in the jack end cover 13, and a first radial seal 10 is arranged in the through hole of the jack end cover 13; the jack end cover 13 is provided with an oil filling hole which is sealed by a first plug 19. The tail end 9 of the insulating support is fixedly connected with the other end of the jack packaging shell 14. The first oil bag 11 is hermetically arranged on the insulating support 8 and the tail end 9 of the insulating support; the first oil bag 11, the insulating support 8, the insulating support tail end 9 and the jack end cover 13 form a first oil filling cavity 26 in a surrounding mode. The jack and core assembly 7 is fixed on the insulating support 8 and the tail end 9 of the insulating support. The first oil-filled cavity 26 comprises a left oil-filled cavity 27 and a right oil-filled cavity 28, the left oil-filled cavity 27 is positioned between the insulating support 8 and the jack end cover 13, and the right oil-filled cavity 28 is positioned between the insulating support 8 and the insulating support tail end 9; the insulating support 8 is provided with through holes 23 and 24 which are communicated with the left oil filling cavity 27 and the right oil filling cavity 28. The through holes of the left oil-filled cavity 27 and the right oil-filled cavity 28 include a central through hole 23 and several peripheral through holes 24 located around the central through hole 23. The peripheral through holes 24 are inclined through holes, and the distance between the peripheral through holes 24 and the central through hole 23 is gradually reduced in the direction from the tail end 9 of the insulation support to the jack end cover 13. The end face of the insulating support 8 positioned in the left oil filling cavity 27 is an inner conical surface 25, and the lowest end of the inner conical surface 25 is positioned at the central through hole 23.
Specifically, the jack terminal II mainly comprises a jack electric core assembly 7, an insulating support 8, an insulating support tail end 9, a first radial seal 10, a first oil bag 11, a first oil bag locking pressing ring 12, a jack end cover 13, a jack packaging shell 14 and the like. The jack cell assembly 7 is matched with the mounting hole 15 and the shaft shoulder 16 of the insulating support 8 and the mounting hole 17 and the shaft shoulder 18 of the insulating support tail end 9 in a shaft hole mode and is axially fixed. The jack end cover 13 is fixedly installed with the insulating support 8 in a sealing mode through a radial sealing ring 20 and a mounting bolt 21, an oil filling hole is formed in the jack end cover 13, and sealing is conducted through a first plug 19; the jack end cover 13 is provided with through holes with the same number and the same positions as the jack electric core assembly 7, first radial seals 10 are installed in the through holes, the first radial seals 10 can be radial seal ring interval combinations in the forms of single or a plurality of O-shaped rings, rectangular seal rings, lip-shaped rings and the like, and the embodiment only embodies a single radial seal ring. The shuttle pin shaft 22 in the jack plug assembly 7 passes through the first radial seal 10 to be matched with the shaft hole under the radial seal formed by the jack end cover 13. First oil bag 11 is the elastomer, and first oil bag 11 is installed respectively on the outer face of cylinder of insulation support 8, insulation support tail end 9 through two first oil bag locking clamping rings 12, and first oil bag locking clamping ring 12 can carry out the screw in for the internal thread ring and fix, also can fix through radial bolt, and this embodiment is the fixed first oil bag 11 of internal thread ring screw in, and the contact surface of first oil bag 11 is compressed by circumference, forms sealedly. As shown in fig. 2 and 3, the insulating support 8 is a cylinder, a through hole 23 is formed in the inner axis of the insulating support 8, a plurality of inclined through holes 24 are uniformly distributed around the through hole 23, and in the direction shown in the figure, the left end surface of the insulating support 8 is an inner conical surface 25; therefore, the insulating support 8, the insulating support tail end 9, the first oil pocket 11, the jack end cover 13 and the jack core assembly 7 together constitute a first oil-filled cavity 26, and as shown in fig. 2, the first oil-filled cavity 26 is divided into a left oil-filled cavity 27 and a right oil-filled cavity 28. The cylindrical surface of the jack packaging shell 14 is provided with a plurality of water permeable holes 29. The jack packaging shell 14 is fixedly connected with the insulating support 8 through a positioning pin 30, and the jack packaging shell 14 is fixedly connected with the tail end 9 of the insulating support through a screw 31.
As shown in fig. 2, 3, 4, and 6, the receptacle cell assembly 7 mainly includes a shuttle pin 22, a second radial seal 32, a receptacle body 34, a connecting body 37, a compression spring 38, a tail end body 39, and a second oil pocket 40. The socket body 34 has a through bore, and the second radial seal 32 is mounted in the through bore of the socket body 34. The connector 37 is used to connect the jack body 34 and the tail body 39. The shuttle pin shaft 22 is in sealing engagement with the second radial seal 32 and the shuttle pin shaft 22 is in sealing engagement with the first radial seal 10, the shuttle pin shaft 22 being partially disposed within the connecting body 37. A compression spring 38 is located within the connecting body 37 and serves to support the tail end body 39 and the shuttle pin shaft 22. The second oil bag 40 is used for connecting the jack body 34 and the tail end body 39, oil passing holes are formed in the jack body 34 and the connecting body 37, the jack body 34, the second oil bag 40 and the tail end body 39 form a second oil filling cavity 47, and the second oil filling cavity 47 is located in the first oil filling cavity 26. The socket body 34 is provided with an elastomer pressing ring 33, and the elastomer pressing ring 33 is used for adjusting the end face extrusion degree of the second radial seal 32. A jack cap 36 is arranged in the jack body 34, the jack cap 36 is connected with a connecting body 37, a crown spring 35 is arranged in the jack cap 36, and the shuttle pin shaft 22 penetrates through the jack cap 36 and the crown spring 35. The insulating support 8 is provided with an oil injection cavity 41 for injecting oil to the jack core assembly 7, and the oil passing hole of the jack body 34 is positioned in the oil injection cavity 41. The insulating support 8 is provided with a radial oil injection channel 42 communicated with the oil injection cavity 41, and the radial oil injection channel 42 is sealed by a second plug 43.
Specifically, the jack and electric core assembly 7 comprises a shuttle pin shaft 22, a second radial seal 32, an elastic body pressing ring 33, a jack body 34, a crown spring 35, a jack cap 36, a connecting body 37, a pressure spring 38, a tail end body 39, a second oil bag 40 and the like. The jack cap 36 and the connecting body 37 are mounted and connected through shaft hole interference fit, the connecting body 37 and the tail end body 39 are mounted and connected through shaft hole interference fit, the shuttle pin shaft 22 and the compression spring 38 are arranged in the connecting body 37, the compression spring 38 always axially supports the shuttle pin shaft 22 under the condition of initial compression, the crown spring 35 is mounted in the jack cap 36, and the jack cap 36 is axially positioned by a shaft shoulder of the jack body 34. As shown in fig. 4, the insulating support 8 is provided with an oil injection cavity 41 for each jack-cell assembly 7, each oil injection cavity 41 is provided with a radial oil injection channel 42, each oil injection channel 42 is sealed by a combined sealing ring 44 through a second plug 43, and the second plug 43 is fixedly connected with the insulating support 8 through threads. As shown in fig. 3, the jack cell assembly 7 is hermetically mounted with the insulating support 8 through a radial seal ring 45, and the jack cell assembly 7 is hermetically mounted with the insulating support tail end 9 through a radial seal ring 46. The second oil bag 40 is an elastic body, the left side of the second oil bag 40 forms circumferential extrusion sealing through the jack body 34 and the insulating support 8, and the right side of the second oil bag 40 forms circumferential extrusion sealing through the tail end body 39 and the insulating support tail end 9; the second radial seal 32 is a circular ring-shaped elastomer, the second radial seal 32 is arranged in the jack body 34 and is matched with the shaft hole of the shuttle pin shaft 22 to form a second radial seal, the elastomer pressing ring 33 is installed and fixed on the inner hole of the jack body 34 through external threads, and the degree of extrusion on the end face of the second radial seal 32 can be changed by adjusting the axial locking distance of the elastomer pressing ring 33, so that the radial pre-tightening contact force between the second radial seal 32 and the shuttle pin shaft 22 is adjusted. Therefore, the jack core assembly 7, the insulating support 8, the insulating support tail end 9, the second radial seal 32 and the second plug 43 are combined together to form a second oil-filled cavity 47, each jack core assembly 7 can form an independent sealed second oil-filled cavity 47, and the plurality of independent sealed second oil-filled cavities 47 are arranged in the first oil-filled cavity 26, so that a double-redundancy oil-filled pressure balance sealing structure for integrally oil-filled sealing after independent oil-filled sealing between the electric cores is formed. The cylindrical surfaces of the jack body 34 and the connecting body 37 are provided with a plurality of through-hole oil-passing holes, so that the oil injected from the radial oil injection channel 42 can fill the whole second oil-filling cavity 47 without a cavity phenomenon.
As shown in fig. 7, the operation principle of the underwater pluggable electrical connector is as follows: the first oil-filled chamber 26 and the second oil-filled chamber 47 are all filled with insulating oil liquid without leaving a clearance chamber. When the underwater plug connector is placed in a deep sea environment, the pressure in the oil cavity is always approximately equal to the pressure of external seawater; the pin end I is inserted into the jack end II, firstly the electric pin 2 is contacted with the axial end face of the shuttle pin shaft 22, the electric pin 2 continuously moves axially along with the shuttle pin shaft 22, the first radial seal 10 gradually transitions from the original radial dynamic seal with the shuttle pin shaft 22 to form a radial dynamic seal with the electric pin 2, the second radial seal 32 gradually transitions from the original radial dynamic seal with the shuttle pin shaft 22 to form a radial dynamic seal with the electric pin 2, and in the whole moving process, the first oil-filled cavity 26 and the second oil-filled cavity 47 in the jack end II are always isolated from the external water medium, so that the metal copper conductor 3 and the crown spring 35 in the electric pin 2 are always in the environment of insulating oil liquid when the cell electrodes are coupled.
The through hole 23, the inclined through hole 24 and the left inner conical surface 25 of the insulating support 8 have the following functions: when the underwater plugging electric connector is used for plugging at the seabed, the underwater plugging electric connector is installed and is inclined at an included angle of about 30 degrees with a vertical line, the seabed sediment environment is severe, the first radial seal 10 has friction abrasion caused by dynamic seal in the plugging process, so that trace seawater permeates into the first oil filling cavity 26, the seawater density is higher than the insulation oil density, and simultaneously, the permeated seawater can flow into the right oil filling cavity 28 from the left oil filling cavity 27 under the action of gravity and cannot influence the second radial seal 32 under the guide action of the inclined installation of the underwater connector and the through hole 23, the inclined through hole 24 and the inner conical surface 25 on the insulation support 8, so that the protection effect of dual-redundancy oil filling pressure balance is more effective, and the reliability of underwater application is further improved.
The above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (10)
1. The utility model provides an underwater plugging electric connector of dual redundant seal structure, includes plug pin end I and jack end II, plug pin end I includes contact pin encapsulation casing (1) and electric plug pin (2), its characterized in that, jack end II includes:
a jack housing (14);
the insulating support (8) is fixedly connected in the jack packaging shell (14);
the jack end cover (13) is positioned at one end of the jack packaging shell (14), and the jack end cover (13) is fixedly connected with the insulating support (8) in a sealing way; a through hole is formed in the jack end cover (13), and a first radial seal (10) is installed in the through hole of the jack end cover (13);
the insulating support tail end (9) is fixedly connected with the other end of the jack packaging shell (14);
the first oil bag (11), the first oil bag (11) is hermetically arranged on the insulating support (8) and the insulating support tail end (9); the first oil bag (11), the insulating support (8), the insulating support tail end (9) and the jack end cover (13) enclose a first oil filling cavity (26);
the jack electric core assembly (7) is fixed on the insulating support (8) and the tail end (9) of the insulating support; the jack and plug assembly (7) comprises a shuttle pin shaft (22), a second radial seal (32), a jack body (34), a connecting body (37), a pressure spring (38), a tail end body (39) and a second oil bag (40); the jack body (34) is provided with a through hole, and the second radial seal (32) is installed in the through hole of the jack body (34); the connecting body (37) is used for connecting the jack body (34) and the tail end body (39); the shuttle pin shaft (22) is in sealing fit with the second radial seal (32), the shuttle pin shaft (22) is in sealing fit with the first radial seal (10), and the shuttle pin shaft (22) is partially positioned in the connecting body (37); the pressure spring (38) is positioned in the connecting body (37) and is used for supporting the tail end body (39) and the shuttle pin shaft (22); the second oil bag (40) is used for connecting the jack body (34) and the tail end body (39), oil passing holes are formed in the jack body (34) and the connecting body (37), and a second oil filling cavity (47) is formed by the jack body (34), the second oil bag (40) and the tail end body (39);
the second oil-filled cavity (47) is located in the first oil-filled cavity (26).
2. The subsea plug electrical connector of dual redundant sealing structure according to claim 1, characterized in that said first oil-filled cavity (26) comprises a left oil-filled cavity (27) and a right oil-filled cavity (28), said left oil-filled cavity (27) being located between said insulating support (8) and jack end cap (13), said right oil-filled cavity (28) being located between said insulating support (8) and insulating support tail end (9); and through holes (23, 24) which are communicated with the left oil filling cavity (27) and the right oil filling cavity (28) are arranged on the insulating support (8).
3. The subsea plug electrical connector of a dual redundant sealing structure according to claim 2, characterized in that the through holes communicating the left and right oil-filled cavities (27, 28) comprise a central through hole (23) and several peripheral through holes (24) located around the central through hole (23).
4. The subsea plug electrical connector of a dual redundant sealing arrangement according to claim 3, characterized in that the peripheral through hole (24) is an inclined through hole, the distance between the peripheral through hole (24) and the central through hole (23) decreasing in the direction of the insulating support tail end (9) to the jack end cap (13).
5. The underwater plug electrical connector with the dual redundant sealing structure according to claim 3, wherein the end face of the insulating support (8) located in the left oil-filled cavity (27) is an inner conical surface (25), and the lowest end of the inner conical surface (25) is located at the central through hole (23).
6. The subsea plug electrical connector with a dual redundant sealing structure according to claim 1, wherein the jack end cap (13) has an oil hole therein, and the oil hole is sealed by a first plug (19).
7. The subsea plug electrical connector of a dual redundant seal configuration according to claim 1, characterized in that an elastomeric clamping ring (33) is provided on said jack body (34), said elastomeric clamping ring (33) being adapted to adjust the degree of end face compression of said second radial seal (32).
8. The subsea plug electrical connector of a dual redundant seal structure according to claim 1, wherein a plug cap (36) is disposed in the plug body (34), the plug cap (36) is connected to the connecting body (37), a crown spring (35) is disposed in the plug cap (36), and the shuttle pin (22) passes through the plug cap (36) and the crown spring (35).
9. The underwater plugging electric connector with the double redundant sealing structure according to claim 1, wherein the insulating support (8) is provided with an oil injection cavity (41) for injecting oil to the jack electric core assembly (7), and the oil passing hole of the jack body (34) is located in the oil injection cavity (41).
10. The subsea plug electrical connector of a dual redundant sealing arrangement according to claim 9, characterized in that a radial oil injection channel (42) is provided on the insulating support (8) in communication with the oil injection cavity (41), the radial oil injection channel (42) being sealed by a second plug (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211248544.0A CN115693266A (en) | 2022-10-12 | 2022-10-12 | Underwater plugging electric connector with double redundant sealing structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211248544.0A CN115693266A (en) | 2022-10-12 | 2022-10-12 | Underwater plugging electric connector with double redundant sealing structures |
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| Publication Number | Publication Date |
|---|---|
| CN115693266A true CN115693266A (en) | 2023-02-03 |
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ID=85064205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211248544.0A Pending CN115693266A (en) | 2022-10-12 | 2022-10-12 | Underwater plugging electric connector with double redundant sealing structures |
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| Country | Link |
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| CN (1) | CN115693266A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116345227B (en) * | 2023-05-29 | 2023-08-04 | 苏州华旃航天电器有限公司 | Pressure balance assembly and underwater connector |
-
2022
- 2022-10-12 CN CN202211248544.0A patent/CN115693266A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116345227B (en) * | 2023-05-29 | 2023-08-04 | 苏州华旃航天电器有限公司 | Pressure balance assembly and underwater connector |
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