CN211265841U

CN211265841U - Temperature-resistant pressure-bearing electric connector capable of being freely butted and rotated

Info

Publication number: CN211265841U
Application number: CN202020092636.4U
Authority: CN
Inventors: 袁生地; 朱赫; 蒋磊
Original assignee: Suzhou Huayang Aerospace Electric Co Ltd
Current assignee: Suzhou Huayang Aerospace Electric Co Ltd
Priority date: 2020-01-16
Filing date: 2020-01-16
Publication date: 2020-08-14
Anticipated expiration: 2030-01-16

Abstract

The utility model relates to a temperature-resistant pressure-bearing electric connector which can be freely butted and rotated, comprising a plug and a socket; the plug comprises an injection molding part a and an injection molding connector a arranged in the injection molding part a; the injection molding part a comprises a welding joint part a and an injection molding part a; the socket comprises an injection molding assembly b and an injection molding connector b arranged in the injection molding assembly b; wherein the injection molding part b comprises a welding joint part b, an injection molding part c and an elastic contact piece. The device changes the circumferential arrangement mode of the multi-core contact elements of the electric connector into a coaxial design; change traditional integral type electric connector into a plurality of coaxial electric connector, assemble through screw thread, O type circle each other to realize that whole temperature resistant is withstand voltage and have butt joint rotation function. Compared with the prior art, the electric connector can realize the effect of contacting and rotating the multi-core conductor, and the split detachable structure greatly improves the maintainability of the product, thereby reducing the cost; meanwhile, the device has the advantages of convenience in installation and reliability in use.

Description

Temperature-resistant pressure-bearing electric connector capable of being freely butted and rotated

Technical Field

The utility model belongs to the technical field of the electric connector, especially, relate to a can freely dock rotatory temperature resistant pressure-bearing electric connector.

Background

In the field of oil logging, the operation point of the detection equipment is often located at a deep position underground or underground, so that the working environment of the equipment is quite severe, particularly, the pressure and temperature environment is far from the ground, and the equipment is usually required to work at the temperature of 200 ℃ and the pressure of 140 MPa. In order to ensure the reliable operation of the electronic instrument in the underground, the prior art places the electronic instrument in a closed space, and installs an electric connector with a wall penetrating effect on the wall of the space, so as to realize the isolation of a high-temperature and high-pressure environment and the electric connection of the electronic instrument. Because there is no relative rotation requirement after the two closed spaces in the prior art are butted, the plug and the socket of the electric connector in the prior art are respectively installed and fixed in the two closed spaces, and the normal working state is obtained after the axial butt joint is completed. Along with the development of logging technique, new demand appears, and two gyration closed space docks the back, need carry out rotation work around common axis, and the butt joint back of prior art temperature resistant pressure-bearing electric connector can't rotate, can not satisfy the requirement.

Disclosure of Invention

The utility model aims to overcome prior art's weak point, provide a can freely dock rotatory temperature resistant pressure-bearing electric connector.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a can freely dock rotatory temperature resistant pressure-bearing electric connector which characterized in that: comprises a plug (1) and a socket (2);

the plug (1) comprises an injection molding part a (11) and an injection molding connector a (12) arranged therein;

the injection molding part a (11) is provided with an inner circle and comprises a welding joint part a and an injection molding part a (11-6); the solder joint part a comprises a straight pin a (11-3), a straight pin b (11-4), a top cylindrical conductor a (11-1-1) and a bottom cylindrical conductor a (11-1-2); the straight pin a (11-3) is connected with the top-layer cylindrical conductor a (11-1-1), and the straight pin b (11-4) is connected with the bottom-layer cylindrical conductor a (11-1-2); the welding joint part a is arranged in the injection molding part a (11-6); the top layer cylindrical conductor a (11-1-1) and the bottom layer cylindrical conductor a (11-1-2) are at least partially exposed out of the injection molding part a (11-6); the injection molding connector a (12) comprises an inner contact piece (12-2) and an outer contact piece (12-1), which are coaxially arranged;

the socket (2) comprises an injection molding part b (23) and an injection molding connector b (22) arranged therein;

the injection molding part b (23) is provided with an inner circle and comprises a welding joint part b, an injection molding part c (23-6) and an elastic contact piece; the welding joint part b comprises a bent pin a (23-1), a bent pin b (23-3), a top layer cylindrical conductor b (23-2-1) and a bottom layer cylindrical conductor b (23-2-2); the bent pin a (23-1) is connected with the bottom layer cylindrical conductor b (23-2-2), and the bent pin b (23-3) is connected with the top layer cylindrical conductor b (23-2-1); the welding joint part b is arranged in the injection molding part c (23-6); the elastic contact pieces are arranged in the inner circle of the injection molding assembly b (23) and are respectively contacted with the top layer cylindrical conductor b (23-2-1) and the bottom layer cylindrical conductor b (23-2-2); the injection molding connector b (22) comprises an inner contact element (22-1) and an outer contact element (22-2) which are coaxially arranged;

the plug (1) and the socket (2) are connected in an opposite inserting mode, the injection molding connector a inner contact piece (12-2) is contacted with the injection molding connector b inner contact piece (22-1), and the injection molding connector a outer contact piece (12-1) is contacted with the injection molding connector b outer contact piece (22-2); the top cylindrical conductor a (11-1-1) is in contact with the elastic contact piece in the bottom cylindrical conductor b (23-2-2), and the bottom cylindrical conductor a (11-1-2) is in contact with the elastic contact piece in the top cylindrical conductor b (23-2-1).

Preferably, the injection molding connector a (12) is arranged in the inner circle of the injection molding part a (11); the top layer cylindrical conductor a (11-1-1) and the bottom layer cylindrical conductor a (11-1-2) are coaxially assembled with the inner contact piece (12-2) and the outer contact piece (12-1);

the injection molding connector b (22) is arranged in the inner circle of the injection molding part b (23); the two elastic contact pieces are oblique springs (23-5) and are coaxially assembled with the inner contact piece (22-1) and the outer contact piece (22-2);

the tail cover comprises a tail cover a (13) and a tail cover b (21); the tail cover a (13) is connected with the injection molding part a (11) in a threaded fit manner; the tail cover b (21) is connected with the injection molding part b (23) in a threaded fit mode.

Preferably, the injection molding part a (11) further comprises a shell (11-5); the shell (11-5) is sleeved at the rear part of the periphery of the injection molding part a (11-6); the side surfaces of the top layer cylindrical conductor a (11-1-1) and the bottom layer cylindrical conductor a (11-1-2) are exposed out of the front side surface of the injection molding part a (11-6).

More preferably, the injection molding part a (11) is obtained by assembling a shell (11-5), a straight pin a (11-3), a straight pin b (11-4), a conductor a (11-1) and a PEEK pipe a (11-2), then performing injection molding, and then performing secondary processing on an outer circle and an inner circle; the conductor a (11-1) is formed by sequentially connecting a top-layer cylindrical conductor a (11-1-1), a connecting cylinder a (11-1-10) and a bottom-layer cylindrical conductor a (11-1-2), the axial section of the conductor a is I-shaped, and the connecting cylinder a (11-1-10) is cut off during secondary processing.

Preferably, the welding joint a further comprises a PEEK pipe a (11-2);

the straight pin a (11-3) comprises a first end head (11-3-1), a boss (11-3-2) and a second end head (11-3-3); the first end head (11-3-1) is provided with a ball head, and the second end head (11-3-3) is provided with a welding cup; the boss (11-3-2) is closer to the first end (11-3-1);

the straight pin b (11-4) comprises a first end head (11-4-1), a boss (11-4-2) and a second end head (11-4-3); the first end head (11-4-1) is provided with a ball head, and the second end head (11-4-3) is provided with a welding cup; the boss (11-4-2) is closer to the first end (11-4-1);

the top layer cylindrical conductor a (11-1-1) is provided with a first welding through hole (11-1-5) along the direction parallel to the axial direction of the top layer cylindrical conductor a; the front end face of the top layer cylindrical conductor a (11-1-1) is provided with a circular groove (11-1-3), and the circular groove (11-1-3) and the top layer cylindrical conductor a (11-1-1) are coaxially arranged;

the bottom layer cylindrical conductor a (11-1-2) is provided with a PEEK pipe through hole (11-1-4) and a second welding through hole (11-1-6) along the direction parallel to the axial direction of the bottom layer cylindrical conductor a; the PEEK tube through hole (11-1-4) and the second welding through hole (11-1-6) are symmetrically arranged around the central axis of the bottom layer cylindrical conductor a (11-1-2);

the top layer cylindrical conductor a (11-1-1) and the bottom layer cylindrical conductor a (11-1-2) are coaxially arranged; the PEEK pipe a (11-2) is arranged in the PEEK pipe through hole (11-1-4); the first end head (11-3-1) of the straight pin a penetrates through the PEEK pipe a (11-2) and then is welded in the first welding through hole (11-1-5); the first end (11-4-1) of the straight pin b is welded in the second welding through hole (11-1-6).

More preferably, the injection-molded connector a (12) further comprises an injection-molded part b (12-3), a metal shell (12-4); the inner contact piece (12-2) is arranged in the outer contact piece (12-1), and an injection molding part b (12-3) is arranged between the inner contact piece and the outer contact piece; the outer contact piece (12-1) is arranged in the metal shell (12-4), and an injection molding part b (12-3) is arranged between the outer contact piece and the metal shell; the metal shell (12-4) is provided with an excircle (12-6), an O-shaped ring (12-5) and an external thread (12-7);

the front end of the tail cover a (13) is provided with a step external thread (13-1), and the rear end is provided with three blind holes (13-4) which are uniformly distributed in 360 degrees; the inner cavity of the tail cover a (13) is provided with two sections of step inner holes (13-2, 13-3).

As a more preferable scheme, the injection molding assembly b (23) is assembled by a bent inserting needle a (23-1), a bent inserting needle b (23-3), a conductor b (23-2) and a PEEK pipe b (23-4) and then is subjected to injection molding, then the outer circle and the inner circle are secondarily processed, and finally two oblique springs (23-5) are respectively placed in two U-shaped grooves (23-12) formed in the inner circle to complete the manufacturing; the conductor b (23-2) is formed by sequentially connecting a top-layer cylindrical conductor b (23-2-1), a connecting cylinder b (23-2-6) and a bottom-layer cylindrical conductor b (23-2-2), the axial section of the conductor b is in an I shape, and the connecting cylinder b (23-2-6) is cut off during secondary machining.

Preferably, the welding joint b also comprises a PEEK pipe b (23-4) which is vertically abutted against the front end face of the bottom layer cylindrical conductor b (23-2-2);

the bent insertion pin a (23-1) is of a zigzag structure and consists of two straight line end parts and a zigzag structure part (23-1-3) connecting the two straight line end parts; one end of the cylinder is designed into two sections of cylinders with different diameters, a thin cylinder (23-1-1) is arranged outside the cylinder, a thick cylinder is connected with a Z-shaped structure part (23-1-3), and two cylinder bosses (23-1-2) are arranged on the thick cylinder; the other end is provided with a welding cup structure;

the bent pin b (23-3) is of a zigzag structure and consists of two straight line end parts and a zigzag structure part (23-3-3) connecting the two straight line end parts; one end of the cylinder is designed into two sections of cylinders with different diameters, a thin cylinder (23-3-1) is arranged outside the cylinder, a thick cylinder is connected with a Z-shaped structure part (23-3-3), and two cylinder bosses (23-3-2) are arranged on the thick cylinder; the other end is provided with a welding cup structure;

a boss (23-2-5) is arranged on the side surface of the top layer cylindrical conductor b (23-2-1); a first welding through hole (23-2-3) is axially arranged on the boss (23-2-5) along the top cylindrical conductor b (23-2-1);

a boss (23-2-5) is arranged on the side surface of the bottom layer cylindrical conductor b (23-2-2); a second welding through hole (23-2-4) is axially arranged on the boss (23-2-5) along the bottom layer cylindrical conductor b (23-2-2);

the top layer cylindrical conductor b (23-2-1) and the bottom layer cylindrical conductor b (23-2-2) are coaxially arranged; the thin cylinder (23-1-1) of the bent inserting pin a penetrates through the PEEK pipe b (23-4) and then is welded in the second welding through hole (23-2-4); the thin cylinder (23-3-1) of the bent pin b is welded in the first welding through hole (23-2-3).

As a more preferable scheme, the bosses (23-2-5) of the top layer cylindrical conductor b (23-2-1) and the bottom layer cylindrical conductor b (23-2-2) are symmetrically arranged at 180 degrees by taking the central axis as a symmetric center.

More preferably, the injection-molded connector b (22) further comprises an injection-molded part d (22-3), a metal shell (22-4); the inner contact piece (22-1) is arranged in the outer contact piece (22-2), and an injection molding part d (22-3) is arranged between the inner contact piece and the outer contact piece; the outer contact piece (22-2) is arranged in the metal shell (22-4), and an injection molding part d (22-3) is arranged between the outer contact piece and the metal shell; the metal shell (22-4) is provided with an excircle (22-6), an O-shaped ring (22-5) and an external thread (22-7);

the outer circle of the tail cover b (21) is designed into two sections of stepped cylinders, and the end face of the large-diameter cylinder is provided with 3 blind holes (21-1) which are uniformly distributed in 360 degrees; two sections of step inner holes (21-2, 21-4) are formed in the inner cavity of the tail cover b, internal threads (21-3) are formed in the large-diameter inner hole (21-2), and two ends of the small-diameter inner hole (21-4) are chamfered.

The utility model has the advantages of: provides a temperature-resistant pressure-bearing electric connector which can be freely butted and rotated. The device changes the circumferential arrangement mode of the multi-core contact elements of the electric connector into a coaxial design; change traditional integral type electric connector into a plurality of coaxial electric connector, assemble through screw thread, O type circle each other to realize that whole temperature resistant is withstand voltage and have butt joint rotation function. Compared with the prior art, the electric connector can realize the effect of contacting and rotating the multi-core conductor, and the split detachable structure greatly improves the maintainability of the product, thereby reducing the cost; meanwhile, the device has the advantages of convenience in installation and reliability in use.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.

Fig. 2 is a schematic structural diagram of the plug of the present invention.

Fig. 3 is a schematic structural diagram of the injection molding assembly a of the present invention.

Fig. 4 is a schematic structural view of the injection molding assembly a without secondary processing of the present invention.

Fig. 5 is a schematic cross-sectional view of a conductor a according to the present invention.

Fig. 6 is a right-side schematic view of the conductor a of the present invention.

Fig. 7 is a left side view schematically illustrating a conductor a according to the present invention.

Fig. 8 is a perspective view of a conductor a according to the present invention.

Fig. 9 is a schematic structural diagram of a straight pin a and a straight pin b according to the present invention.

Fig. 10 is a schematic structural diagram of the housing of the present invention.

Fig. 11 is a schematic structural diagram of the injection-molded connector a according to the present invention.

Fig. 12 is a schematic structural diagram of the tail cover a of the present invention.

Fig. 13 is a schematic structural diagram of the socket of the present invention.

Fig. 14 is a schematic structural diagram of the injection-molded part b of the present invention.

Fig. 15 is a schematic structural view of the injection-molded part b which is not subjected to secondary processing.

Fig. 16 is a schematic sectional view of a conductor b according to the present invention.

Fig. 17 is a left side view schematically illustrating a conductor b according to the present invention.

Fig. 18 is a schematic structural view of the curved insertion needle a and the curved insertion needle b of the present invention.

Fig. 19 is a schematic structural diagram of the injection-molded connector b of the present invention.

Fig. 20 is a schematic structural view of the tail cover b of the present invention.

In the figure: 1 is a plug, 11 is an injection molding part a, 11-1 is a conductor a, 11-1-1 is a top layer cylindrical conductor a, 11-1-2 is a bottom layer cylindrical conductor a, 11-1-3 is a circular groove, 11-1-4 is a PEEK tube through hole of the conductor a, 11-1-5 is a first welding through hole of the conductor a, 11-1-6 is a second welding through hole of the conductor a, 11-1-7 is a through hole of the conductor a, 11-1-8 is an ear structure of the conductor a, 11-1-9 is an R-shaped boss of the conductor a, 11-1-10 is a connecting cylinder a, 11-2 is the PEEK tube a, 11-3 is a straight pin a, 11-3-1 is a first end of the straight pin a, 11-3-2 is a boss of the straight pin a, 11-3-3 is a second end of the straight pin a, 11-4 is the straight pin b, 11-4-1 is a first end of the straight pin b, 11-4-2 is a boss of the straight pin b, 11-4-3 is a second end of the straight pin b, 11-5 is a shell, 11-5-1 is a V-shaped groove of the shell, 11-5-2 is an O-shaped ring groove of the shell, 11-5-3 is an internal thread of the shell, 11-5-4 is an O-shaped ring groove of the shell, 11-5-5 is a front end face of the shell, 11-6 is an injection molding part a, 11-7 is an inner hole, 11-8 is an internal thread of the second step through hole, 11-9 is a third step through hole, 12 is an injection molding connector a, and 12-1 is an outer contact part of the injection molding connector a, 12-2 is an inner contact piece of an injection molding connector a, 12-3 is an injection molding part b, 12-4 is a metal shell of the injection molding connector a, 12-5 is an O-shaped ring of the injection molding connector a, 12-6 is an excircle of the injection molding connector a, 12-7 is an external thread of the injection molding connector a, 13 is a tail cover a, 13-1 is an external thread of the tail cover a, 13-2 is a large-diameter inner hole of the tail cover a, 13-3 is a small-diameter inner hole of the tail cover a, 13-4 is a blind hole of the tail cover a, 2 is a socket, 21 is the tail cover b, 21-1 is a blind hole of the tail cover b, 21-2 is a large-diameter inner hole of the tail cover b, 21-3 is an internal thread of the tail cover b, 21-4 is a small-diameter inner hole of the tail cover b, 22 is the injection molding connector b, 22-1 is an inner contact piece of the injection molding connector b, 22-2 is an outer contact piece of an injection molding connector b, 22-3 is an injection molding part d, 22-4 is a metal shell of the injection molding connector b, 22-5 is an O-shaped ring of the injection molding connector b, 22-6 is an excircle of the injection molding connector b, 22-7 is an external thread of the injection molding connector b, 23 is an injection molding part b, 23-1 is a bent insertion needle a, 23-1-1 is a thin cylinder of the bent insertion needle a, 23-1-2 is a boss of the bent insertion needle a, 23-1-3 is a 'Z' -shaped structure part of the bent insertion needle a, 23-2 is a conductor b, 23-2-1 is a top-layer cylindrical conductor b, 23-2-2 is a bottom-layer cylindrical conductor b, 23-2-3 is a first welding through hole of the conductor b, 23-2-4 is a second welding through hole of the conductor b, 23-2-5 is a boss of a conductor b, 23-2-6 is a connecting cylinder b, 23-3 is a bent pin b, 23-3-1 is a thin cylinder of a bent pin b, 23-3-2 is a boss of the bent pin b, 23-3-3 is a 'T' -shaped structure part of the bent pin b, 23-4 is a PEEK pipe b, 23-5 is a diagonal spring, 23-6 is an injection molding part c, 23-7 is a second step cylinder, 23-8 is an external thread of a fifth step cylinder, 23-9 is an end face of a first step through hole, 23-10 is a second step through hole, 23-11 is an internal thread of a third step through hole, and 23-12 is an annular U-shaped groove.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings and examples, which are given by way of illustration only, not limitation, and are not intended to limit the scope of the invention. The structures, connections and methods not described in detail in the present application are all understood to be common general knowledge in the art. It should also be noted that the terms "left," "right," "upper," and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

As shown in fig. 1-20, a temperature and pressure resistant electric connector capable of freely butting and rotating comprises a plug 1 and a socket 2.

Plug 1 includes injection molded part a11, tail cap a13, and injection molded connector a 12.

The injection molding part a11 has an inner circle and comprises a shell 11-5, a welding part a and an injection molding part a 11-6; wherein: the welding joint piece a is arranged in the injection molding part a11-6, and the shell 11-5 is sleeved at the rear end of the periphery of the injection molding part a 11-6.

The solder joint a comprises a straight pin a11-3, a straight pin b11-4, a top layer cylindrical conductor a11-1-1, a bottom layer cylindrical conductor a11-1-2 and a PEEK tube a 11-2.

The straight pin a11-3 comprises a first end 11-3-1, a boss 11-3-2 and a second end 11-3-3; the first end 11-3-1 is provided with a ball head, and the second end 11-3-3 is provided with a welding cup; the boss 11-3-2 is closer to the first end 11-3-1.

The straight pin b11-4 comprises a first end 11-4-1, a boss 11-4-2 and a second end 11-4-3; the first end 11-4-1 is provided with a ball head, and the second end 11-4-3 is provided with a welding cup; the boss 11-4-2 is closer to the first end 11-4-1; in addition, straight pin a11-3 is configured to be longer than straight pin b 11-4.

The top layer cylindrical conductor a11-1-1 and the bottom layer cylindrical conductor a11-1-2 are both in circular ring structures; the sizes of the two parts are the same, and the side surfaces are provided with two ear-shaped structures 11-1-8 which are symmetrical about the central axis; the diameters of the cross sections of the top layer cylindrical conductor a11-1-1 and the bottom layer cylindrical conductor a11-1-2 are smaller than the diameter of the ear-shaped structure 11-1-8; the ear-shaped structures 11-1-8 are the same in size and shape, and an R-shaped boss 11-1-9 is arranged at the same position on the side surface of each ear-shaped structure; the size and shape of each boss 11-1-9 are the same.

The top-layer cylindrical conductor a11-1-1 is provided with a first welding through hole 11-1-5 and six through holes 11-1-7 along the direction parallel to the axial direction of the top-layer cylindrical conductor, wherein the six through holes 11-1-7 are symmetrically and uniformly distributed around the central axis of the top-layer cylindrical conductor a 11-1-1; the front end face of the top-layer cylindrical conductor a11-1-1 is provided with a circular groove 11-1-3, and the circular groove 11-1-3 and the top-layer cylindrical conductor a11-1-1 are coaxially arranged; the first welding through hole 11-1-5 is arranged in a chamfering mode; the arrangement of the through holes 11-1-7 and the circular grooves 11-1-3 can ensure the sealing and pressure-bearing effect of the injection molding part a 11.

The bottom layer cylindrical conductor a11-1-2 is provided with a PEEK pipe through hole 11-1-4, a second welding through hole 11-1-6 and six through holes 11-1-7 along the direction parallel to the axial direction, wherein the PEEK pipe through hole 11-1-4 and the second welding through hole 11-1-6 are symmetrically arranged about the central axis of the bottom layer cylindrical conductor a 11-1-2; the six through holes 11-1-7 are symmetrically and uniformly distributed about the central axis of the bottom layer cylindrical conductor a 11-1-2; the PEEK tube through hole 11-1-4 corresponds to the position of the first welding through hole 11-1-5, when the top layer cylindrical conductor a11-1-1 and the bottom layer cylindrical conductor a11-1-2 are coaxially arranged; the PEEK pipe through hole 11-1-4 and the first welding through hole 11-1-5 are also coaxially arranged; in addition, the aperture of the PEEK pipe through hole 11-1-4 is larger than that of the first welding through hole 11-1-5; the PEEK pipe through hole 11-1-4 and the second welding through hole 11-1-6 are arranged in a chamfer mode.

The PEEK tube a11-2 is a tubular structure, and the aperture of the PEEK tube a11-2 is matched with the outer diameter of the straight needle a 11-3; meanwhile, the external diameter of the PEEK pipe a11-2 is matched with the aperture of the PEEK pipe through hole 11-1-4. In addition, the diameters of the first welding through hole 11-1-5 and the second welding through hole 11-1-6 are respectively matched with the outer diameters of the straight pin a11-3 and the straight pin b 11-4.

When the welding joint part a is assembled: the top layer cylindrical conductor a11-1-1 is coaxially arranged with the bottom layer cylindrical conductor a 11-1-2. The PEEK tube a11-2 is disposed in the PEEK tube through hole 11-1-4 of the bottom cylindrical conductor a11-1-2, and its front end protrudes from the PEEK tube through hole 11-1-4 against the end face of the top cylindrical conductor a 11-1-1. The first end 11-3-1 of the straight pin a11-3 is welded in the first welding through hole 11-1-5 of the top layer cylindrical conductor a11-1-1 through the PEEK tube a 11-2; the rear end face of the PEEK pipe a11-2 abuts against the end face of the boss 11-3-2 of the straight insertion pin a 11-3. The first end 11-4-1 of the straight pin b11-4 is welded in the second welding through hole 11-1-6 of the bottom layer cylindrical conductor a 11-1-2; the end face of the boss 11-4-2 of the straight pin b abuts against the end face of the bottom cylindrical conductor a 11-1-2.

The inner hole of the shell 11-5 is designed in a step shape, an internal thread 11-5-3 is arranged at the first step from the back to the front, a plurality of V-shaped grooves 11-5-1 are arranged at the second step, and the sealing and pressure-bearing effect of the injection molding assembly a11 can be ensured; the large-diameter part of the outer surface of the shell 11-5 is of a circular flange structure, and the front end and the rear end of the flange are respectively provided with an O-shaped ring groove (11-5-2 and 11-5-4).

When the injection molding part a11 is manufactured: the injection molding part a11 is assembled by a shell 11-5, a straight pin a11-3, a straight pin b11-4, a conductor a11-1 and a PEEK pipe a11-2, then injection molding is carried out (an injection molding part a11-6 is formed during injection molding), and then secondary machining is carried out; the conductor a11-1 is formed by sequentially connecting a top-layer cylindrical conductor a11-1-1, a connecting cylinder a11-1-10 and a bottom-layer cylindrical conductor a11-1-2, and the axial section of the conductor a11-1 is in an I shape.

By secondary machining, the outer circle of the injection molding part a11-6 of the injection molding part a11 of the plug 1 is turned to the side surfaces of the top layer cylindrical conductor a11-1-1 and the bottom layer cylindrical conductor a11-1-2 to be completely exposed from the front side surface of the plug; the injection molding inner circle is turned into four sections of step through holes (from back to front, the step through holes are defined as a first step through hole to a fourth step through hole), wherein the I-shaped structure of the conductor a11-1 is located at the third step through hole 11-9 and turned, and the connecting cylinder a11-1-10 is removed, so that the top layer cylindrical conductor a11-1-1 and the bottom layer cylindrical conductor a11-1-2 are formed into two bodies to achieve the electrical isolation effect; meanwhile, the second step through hole is internally provided with internal threads 11-8.

The injection molding connector a12 comprises an inner contact 12-2, an outer contact 12-1, an injection molding part b12-3 and a metal shell 12-4; the inner contact piece 12-2 is arranged in the outer contact piece 12-1, and an injection molding part b12-3 is arranged between the inner contact piece and the outer contact piece; the outer contact piece 12-1 is arranged in the metal shell 12-4, and an injection molding part b12-3 is arranged between the outer contact piece and the metal shell; an O-shaped ring 12-5, an excircle 12-6 and an external thread 12-7 are arranged on the metal shell 12-4; the inner contact 12-2 is designed coaxially with the outer contact 12-1.

The front end of the tail cover a13 is provided with a step external thread 13-1, the rear end is provided with three blind holes 13-4 uniformly distributed in 360 degrees, the inner cavity of the tail cover a13 is provided with two sections of step inner holes (13-2, 13-3), wherein two ends of the small-diameter inner hole 13-3 are chamfered; the inner holes (13-2, 13-3) of the tail cover a13 realize the protection of the lead-out wires of the plug 1.

When the plug 1 is assembled: the external thread 13-1 of the tail cover a13 is matched and connected with the internal thread 11-5-3 of the injection molding part a 11; the blind hole 13-4 of the tail cover a13 and the O-rings on the two O-ring grooves (11-5-2 and 11-5-4) on the injection molding assembly a11 can realize the installation and the sealing pressure bearing of the plug 1 and the external environment; the injection-molded connector a12 is inserted into the hollow part of the injection-molded part a11 and is matched and connected with the external thread 12-7 of the injection-molded connector a12 through the internal thread 11-9 of the injection-molded part a 11; the top layer cylindrical conductor a11-1-1 and the bottom layer cylindrical conductor a11-1-2 of the injection molding assembly a are coaxially assembled with the inner contact piece and the outer contact piece of the injection molding connector a 12; the O-shaped ring 12-5 of the injection molding connector a12 is matched with the inner circle of the injection molding assembly a11, so that the sealing between the injection molding assembly a11 and the injection molding connector a12 is realized, and the temperature and pressure resistance of the whole plug 1 is realized.

The socket 2 comprises an injection molding part b23, a tail cover b21 and an injection molding connector b 22;

the injection molding part b23 is provided with an inner circle and comprises a welding joint b, an injection molding part c23-6 and two oblique springs 23-5; wherein: the welding joint b is arranged in the injection molding part c 23-6; two canted springs 23-5 are disposed within solder joint b.

The solder joint b is composed of a bent pin a23-1, a bent pin b23-3, a top cylindrical conductor b23-2-1, a bottom cylindrical conductor b23-2-2 and a PEEK tube b 23-4.

The bent pin a23-1 is a zigzag structure, which is composed of two straight line ends and a zigzag structure part 23-1-3 connecting the two straight line ends; one end of the cylinder is designed into two sections of cylinders with different diameters, a thin cylinder 23-1-1 is arranged outside the cylinder, a thick cylinder is connected with a Z-shaped structure part 23-1-3, and two cylinder bosses 23-1-2 are arranged on the thick cylinder; the other end is provided with a welding cup structure; the arrangement of the boss 23-1-2 and the zigzag-shaped structure part 23-1-3 ensures the sealing and pressure-bearing effect of the injection molding part b 23.

The bent pin b23-3 is similar to the bent pin a23-1 in structure and is also in a zigzag structure, and consists of two straight line end parts and a zigzag structure part 23-3-3 connected with the two straight line end parts; one end of the cylinder is designed into two sections of cylinders with different diameters, a thin cylinder 23-3-1 is arranged outside the cylinder, a thick cylinder is connected with a Z-shaped structure part 23-3-3, and two cylinder bosses 23-3-2 are arranged on the thick cylinder; the other end is provided with a welding cup structure; the arrangement of the boss 23-3-2 and the zigzag structure part 23-3-3 ensures the sealing and pressure-bearing effect of the injection molding part b 23; in addition, the thick cylinder of bent pin b23-3 is shorter than the thick cylinder of bent pin a 23-1.

The top layer cylindrical conductor b23-2-1 and the bottom layer cylindrical conductor b23-2-2 are the same in size, and a boss 23-2-5 is arranged on each side face; the two bosses 23-2-5 are the same in shape and size; a first welding through hole 23-2-3 is axially arranged on the boss 23-2-5 of the top-layer cylindrical conductor b23-2-1 along the top-layer cylindrical conductor b23-2-1, and a second welding through hole 23-2-4 is axially arranged on the boss 23-2-5 of the bottom-layer cylindrical conductor b23-2-2 along the bottom-layer cylindrical conductor b 23-2-2; the two welding through holes (23-2-3, 23-2-4) are chamfered.

In addition, the top layer cylindrical conductor b23-2-1 and the bottom layer cylindrical conductor b23-2-2 are both of circular ring structures and are provided with inner circles (the inner circles of the two are both components of the injection molding assembly b23 with the inner circles), and the side walls of the inner circles are respectively provided with an annular U-shaped groove 23-12.

The PEEK tube b23-4 is a tubular structure, the aperture of which is matched with the outer diameter of the curved insertion needle a 23-1; the apertures of the second welding through hole 23-2-4 and the first welding through hole 23-2-3 are respectively matched with the outer diameters of the thin cylinder 23-1-1 of the bent inserting pin a23-1 and the thin cylinder 23-3-1 of the bent inserting pin b 23-3.

And when the welding joint part b is assembled: the top layer cylindrical conductor b23-2-1 and the bottom layer cylindrical conductor b23-2-2 are coaxially arranged, and the two bosses 23-2-5 are symmetrically arranged at 180 degrees by taking the central axis as a symmetric center. The rear end face of the PEEK pipe b23-4 is vertically abutted against the front end face of the bottom layer cylindrical conductor b 23-2-2. The bent pin a23-1 penetrates through the PEEK pipe b23-4, and the thin cylinder 23-1-1 is welded in the second welding through hole 23-2-4; the front end face of the PEEK pipe b23-4 abuts against the boss 23-1-2 of the bent pin a 23-1. The thin cylinder 23-3-1 of the bent pin b23-3 is welded in the first welding through hole 23-2-3; the thick cylinder of the bent pin b23-3 abuts against the end face of the top cylindrical conductor b 23-2-1.

When the injection molding part b23 is manufactured: the injection molding part b23 is assembled by a bent pin a23-1, a bent pin b23-3, a conductor b23-2 and a PEEK tube b23-4, then injection molding is carried out (an injection molding part c23-6 is formed during injection molding), then secondary machining is carried out, and finally two inclined springs 23-5 are respectively placed in the U-shaped grooves 23-12 of the top layer cylindrical conductor b23-2-1 and the bottom layer cylindrical conductor b23-2-2 to complete the manufacture of the injection molding part b 23. The conductor b23-2 is formed by sequentially connecting a top-layer cylindrical conductor b23-2-1, a connecting cylinder b23-2-6 and a bottom-layer cylindrical conductor b23-2-2, and the axial section of the conductor b is in an I shape.

Through secondary machining, five-step cylinders (namely first to fifth step cylinders from back to front) are turned on the outer circle of an injection part c23-6 of an injection part b23 of the socket, wherein the second step cylinder 23-7 is concave and is used as an O-shaped ring groove; the fifth step cylinder is provided with external threads 23-8; the injection molding assembly b23 is used for injection molding of an internal circle turned four-section step through hole (from back to front, the four-section step through hole is defined as a first step through hole to a fourth step through hole), wherein the I-shaped structure of the conductor b23-2 is turned at the second step through hole 23-10, and the connecting cylinder b23-2-6 is removed, so that the top layer cylindrical conductor b23-2-1 and the bottom layer cylindrical conductor b23-2-2 are formed into two bodies to achieve an electrical isolation effect; in addition, the inner circular side walls of the top layer cylindrical conductor b23-2-1 and the bottom layer cylindrical conductor b23-2-2 are also turned into an annular U-shaped groove 23-12; meanwhile, the third step through hole is provided with internal threads 23-11.

The injection-molded connector b22 includes an inner contact 22-1, an outer contact 22-2, an injection-molded portion d22-3, and a metal housing 22-4; the inner contact piece 22-1 is arranged in the outer contact piece 22-2, and an injection molding part d22-3 is arranged between the inner contact piece and the outer contact piece; the outer contact 22-2 is arranged in the metal shell 22-4, and an injection molding part d22-3 is arranged between the outer contact and the metal shell; the metal shell 22-4 is provided with an O-shaped ring 22-5, an excircle 22-6 and an external thread 22-7; the inner contact piece 22-1 is designed coaxially with the outer contact piece 22-2.

The outer circle of the tail cover b21 is designed into two sections of stepped cylinders, and the end face of the large-diameter cylinder is provided with 3 blind holes 21-1 which are uniformly distributed at 360 degrees; the inner cavity of the tail cover b is provided with two sections of step inner holes (21-2, 21-4), the large-diameter inner hole 21-2 is provided with an internal thread 21-3, and two ends of the small-diameter inner hole 21-4 are chamfered; the inner holes (21-2, 21-4) of the tail cover b21 realize the protection of the lead-out wires of the socket 2.

When the socket 2 is assembled: the internal thread 21-1 of the tail cover b21 is matched and connected with the external thread 23-8 of the injection molding part b 23; the blind hole 21-1 of the tail cover b21 and the O-ring on the second stepped cylinder 23-7 of the injection molding piece b23 can realize the installation and the sealed pressure bearing of the socket 2 and the external environment. The injection-molded connector b22 is inserted into the hollow part of the injection-molded part b23 and is matched and connected with the external thread 22-7 of the injection-molded connector b22 through the internal thread 23-11 of the injection-molded part b 23; the two oblique springs 23-5 of the injection molding assembly b23 are coaxially assembled with the inner contact piece and the outer contact piece of the injection molding connector b 22; the O-shaped ring 22-5 of the injection connector b22 is matched with the inner circle of the injection assembly b23, so that the sealing between the injection assembly b23 and the injection connector b22 is realized, and the temperature and pressure resistance of the socket 2 is realized;

when the whole device is integrally assembled: the plug 1 and the socket 2 are oppositely inserted, and the front end surface 11-5-5 of the shell 11-5 is propped against the end surface 23-9 of the first step through hole of the injection molding part b 23; the injection molding connector a inner contact piece 12-2 is contacted with the injection molding connector b inner contact piece 22-1, and the injection molding connector a outer contact piece 12-1 is contacted with the injection molding connector b outer contact piece 22-2; the top cylindrical conductor a11-1-1 is in contact with the canted spring 23-5 in the bottom cylindrical conductor b23-2-2, and the bottom cylindrical conductor a11-1-2 is in contact with the canted spring 23-5 in the top cylindrical conductor b 23-2-1.

In addition, the butt joint end of the injection molding part a11 is provided with an inner hole 11-7, and the end surface of the inner hole is provided with a taper angle; when the injection-molded connector a12 is in butt joint with the injection-molded connector b22, a certain guiding function is achieved.

In light of the foregoing, it is to be understood that various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a can freely dock rotatory temperature resistant pressure-bearing electric connector which characterized in that: comprises a plug (1) and a socket (2);

2. The temperature and pressure resistant electric connector capable of freely butting and rotating according to claim 1, wherein: the injection molding connector a (12) is arranged in the inner circle of the injection molding part a (11); the top layer cylindrical conductor a (11-1-1) and the bottom layer cylindrical conductor a (11-1-2) are coaxially assembled with the inner contact piece (12-2) and the outer contact piece (12-1);

3. The temperature-resistant pressure-bearing electric connector capable of freely butting and rotating according to claim 1 or 2, which is characterized in that: the injection molding part a (11) further comprises a shell (11-5); the shell (11-5) is sleeved at the rear part of the periphery of the injection molding part a (11-6); the side surfaces of the top layer cylindrical conductor a (11-1-1) and the bottom layer cylindrical conductor a (11-1-2) are exposed out of the front side surface of the injection molding part a (11-6).

4. The temperature and pressure resistant electrical connector capable of freely butting and rotating according to claim 3, wherein: the injection molding assembly a (11) is obtained by assembling a shell (11-5), a straight pin a (11-3), a straight pin b (11-4), a conductor a (11-1) and a PEEK pipe a (11-2), then performing injection molding, and then performing secondary processing on an outer circle and an inner circle; the conductor a (11-1) is formed by sequentially connecting a top-layer cylindrical conductor a (11-1-1), a connecting cylinder a (11-1-10) and a bottom-layer cylindrical conductor a (11-1-2), the axial section of the conductor a is I-shaped, and the connecting cylinder a (11-1-10) is cut off during secondary processing.

5. The temperature-resistant pressure-bearing electric connector capable of freely butting and rotating according to claim 1 or 2, which is characterized in that: the welding joint a also comprises a PEEK pipe a (11-2);

6. The temperature and pressure resistant electric connector capable of freely butting and rotating according to claim 2, characterized in that: the injection molding connector a (12) further comprises an injection molding part b (12-3) and a metal shell (12-4); the inner contact piece (12-2) is arranged in the outer contact piece (12-1), and an injection molding part b (12-3) is arranged between the inner contact piece and the outer contact piece; the outer contact piece (12-1) is arranged in the metal shell (12-4), and an injection molding part b (12-3) is arranged between the outer contact piece and the metal shell; the metal shell (12-4) is provided with an excircle (12-6), an O-shaped ring (12-5) and an external thread (12-7);

7. The temperature and pressure resistant electric connector capable of freely butting and rotating according to claim 2, characterized in that: the injection molding part b (23) is assembled by a bent inserting needle a (23-1), a bent inserting needle b (23-3), a conductor b (23-2) and a PEEK pipe b (23-4) and then is subjected to injection molding, the outer circle and the inner circle are secondarily processed, and finally two oblique springs (23-5) are respectively placed in two U-shaped grooves (23-12) formed in the inner circle to complete manufacturing; the conductor b (23-2) is formed by sequentially connecting a top-layer cylindrical conductor b (23-2-1), a connecting cylinder b (23-2-6) and a bottom-layer cylindrical conductor b (23-2-2), the axial section of the conductor b is in an I shape, and the connecting cylinder b (23-2-6) is cut off during secondary machining.

8. The temperature-resistant pressure-bearing electric connector capable of freely butting and rotating according to claim 1 or 2, which is characterized in that: the welding joint b also comprises a PEEK pipe b (23-4) which is vertically abutted against the front end face of the bottom layer cylindrical conductor b (23-2-2);

9. The temperature and pressure resistant electrical connector capable of freely butting and rotating according to claim 8, wherein: the bosses (23-2-5) of the top layer cylindrical conductor b (23-2-1) and the bottom layer cylindrical conductor b (23-2-2) are symmetrically arranged at 180 degrees by taking the central axis as a symmetric center.

10. The temperature and pressure resistant electric connector capable of freely butting and rotating according to claim 2, characterized in that: the injection molding connector b (22) further comprises an injection molding part d (22-3) and a metal shell (22-4); the inner contact piece (22-1) is arranged in the outer contact piece (22-2), and an injection molding part d (22-3) is arranged between the inner contact piece and the outer contact piece; the outer contact piece (22-2) is arranged in the metal shell (22-4), and an injection molding part d (22-3) is arranged between the outer contact piece and the metal shell; the metal shell (22-4) is provided with an excircle (22-6), an O-shaped ring (22-5) and an external thread (22-7);