CN115347431A

CN115347431A - Rotary connector assembly and method of manufacturing the same

Info

Publication number: CN115347431A
Application number: CN202211082628.1A
Authority: CN
Inventors: 朱赫; 王敏兴; 杜建东; 栾东岳; 黄森; 丁涛; 陈慧
Original assignee: Suzhou Huayang Aerospace Electric Co Ltd
Current assignee: China Aerospace Science And Industry Group Co ltd; Suzhou Huayang Aerospace Electric Co Ltd
Priority date: 2022-09-06
Filing date: 2022-09-06
Publication date: 2022-11-15

Abstract

The invention relates to a rotary connector assembly and a manufacturing method thereof. The mounting piece comprises a mounting rod, and one end of the mounting rod is provided with a mounting seat; the adaptor comprises a connector arranged in the mounting seat and a plurality of contact parts arranged at intervals on the mounting rod, and the contact parts are electrically connected with a contact piece in the connector. The invention provides a rotary connector assembly and a manufacturing method thereof, which have the advantages of wear resistance, high temperature resistance, high hydraulic pressure resistance, higher structural part strength and small occupied application space; the rotary type product acquisition device has a rotary function, and the product can acquire or transmit signals in rotary equipment.

Description

Rotary connector assembly and method of manufacturing the same

Technical Field

The invention relates to the technical field of connectors, in particular to a multi-core rotary connector with a coaxial structure, which can work under the conditions of high temperature and high hydraulic pressure, and particularly relates to a rotary connector assembly and a manufacturing method thereof.

Background

At present, with the continuous development of connector types, the demand for connectors is more and more diversified. It is desirable that the connector itself be used as both a structural member and an electrical connector. The function and structure of the electric connector in the well logging field are particularly complex, not only ordinary non-coaxial and non-rotatable connectors and assemblies are required, but also two-core or multi-core coaxial and rotatable connectors are required to meet the structural strength under high temperature resistant and high hydraulic pressure resistant environments, and multiple groups of electric signals are required to be acquired and transmitted, so that strict requirements are required on the design of products.

The electric connector in the prior art has the disadvantages of complicated internal wiring, easy generation of mutual short circuit or mutual signal interference among a plurality of wires, large overall volume and high production cost.

Disclosure of Invention

The invention overcomes the defects of the prior art and provides the rotary connector assembly and the manufacturing method thereof, the rotary connector assembly has smaller volume, can release the internal space of oil exploitation equipment, and reduces the production cost; the wires are mutually electrically isolated, and the signal transmission is stable.

In order to achieve the purpose, the invention adopts the technical scheme that:

the present invention provides a rotary connector assembly comprising: the mounting piece comprises a mounting shell and a mounting rod which are connected with each other, the mounting shell is hollow to form a mounting cavity, and the mounting shell is provided with a first wire passing hole communicated with the mounting cavity; a connector disposed within the mounting cavity; the first insulating piece is sleeved on the mounting rod and comprises a body part and a protruding part which are connected with each other, and the body part is provided with a second wire passing hole; the conductive contact ring comprises a first mounting hole, and the conductive contact ring is sleeved on the mounting rod through the first mounting hole; and a wire; the first insulating part is positioned between the conductive contact ring and the mounting shell, a first wire passing groove is formed in the outer wall of the protruding part, and the first wire passing groove is communicated with the second wire passing hole; part of the inner wall of the first mounting hole is sunken to form a second wire passing groove; the protruding part is positioned in the first mounting hole, and the first wire passing groove and the second wire passing groove form a wire passing channel in a surrounding mode; one end of the lead is fixed in the second wire passing groove and is electrically connected with the conductive contact ring, and the other end of the lead passes through the wire passing channel, the second wire passing hole and the first wire passing hole and is electrically connected with the connector.

In a preferred embodiment of the present invention, the outer peripheral area of the body portion is larger than the outer peripheral area of the protruding portion, the conductive contact ring is sleeved on the protruding portion and abuts against the body portion, and in an axial direction along the protruding portion, the conductive contact ring does not exceed one end of the protruding portion away from the body portion.

In a preferred embodiment of the present invention, the first insulating member and the mounting rod are fixed relatively, and the conductive contact ring and the mounting rod are fixed relatively, and/or the outer walls of the first insulating member and the conductive contact ring are on the same circumferential wall surface of a cylinder.

In a preferred embodiment of the present invention, the wire passage channel, the second wire hole and the first wire hole all extend along a same straight line; and/or the central symmetry axes of the wire passing channel, the second wire passing hole and the first wire passing hole are the same; and/or the wire passing channel, the second wire passing hole and the first wire passing hole are all cylindrical holes with the same cross section size; and/or the wire passing channel, the second wire passing hole and the first wire passing hole are all cylindrical holes with equal diameters.

In a preferred embodiment of the present invention, a first anti-rotation convex key extending along an axial direction of the mounting rod is disposed on an outer wall of the mounting rod, a mounting hole penetrates through the first insulating member along the axial direction of the first insulating member, the first insulating member is sleeved on the mounting rod through the mounting hole, a first anti-rotation key slot extending outward along a radial direction of the first insulating member is disposed on an inner wall of the mounting hole, and the first anti-rotation convex key extends into the first anti-rotation key slot to realize circumferential relative fixation of the mounting rod and the first insulating member; the outer wall of the protruding part is provided with a second anti-rotation convex key extending along the axial direction of the protruding part, the inner wall of the first mounting hole is provided with a second anti-rotation key groove extending outwards along the radial direction of the conductive contact ring, and the second anti-rotation convex key extends into the second anti-rotation key groove to realize circumferential relative fixation of the first insulating part and the conductive contact ring; and the rotating connector assembly further comprises a second insulating piece and a fixing bolt, wherein the second insulating piece is fixed with one end, far away from the mounting shell, of the mounting rod through the fixing bolt, so that the conductive contact ring and the first insulating piece are axially fixed between the second insulating piece and the mounting shell.

In a preferred embodiment of the present invention, the mounting shell and the mounting rod are an integral structure; and/or the body part and the protruding part are of an integrally formed integral structure; and/or the protrusion part is formed by extending outwards from the outer wall of the body part along the axial direction of the body part; and/or the cross-sectional area of the projection is less than the cross-sectional area of the body portion.

In a preferred embodiment of the present invention, the rotary connector assembly comprises at least two first insulating members, at least two conductive contact rings, at least two first wire passing holes and at least two wires; the first insulating parts and the conductive contact rings are arranged at intervals, one first insulating part is positioned between one conductive contact ring and the mounting shell, and each conductive contact ring is electrically isolated from any other conductive contact ring through the first insulating parts.

In a preferred embodiment of the invention, the conducting wire comprises a conductive core and an insulating layer, the insulating layer wraps the periphery of the conductive core, and two ends of the conductive core extend out of the insulating layer; one end of each conducting wire is electrically connected with one of the conductive contact rings, the other end of each conducting wire penetrates through the wire passing channel, the second wire passing hole and the first wire passing hole to be electrically connected with the connector, and the conducting wires are electrically isolated from other conductive contact rings; or/and all the wire passing channels, all the second wire passing holes and all the first wire passing holes extend along the same group of mutually parallel axes, and each wire passes through at least one wire passing channel, at least one second wire passing hole and at least one first wire passing hole along one of the axes; or/and all the first insulating pieces are sequentially connected end to end.

In a preferred embodiment of the present invention, the mounting shell includes a first end portion and a second end portion, the first end portion is connected to the mounting rod, the length of the first end portion is greater than the diameter of the mounting rod along the radial direction of the mounting rod, the second end portion defines a first opening communicated with the mounting cavity, the first end portion defines the first wire passing hole, the first wire passing hole extends along the axial direction of the mounting rod, and the first wire passing hole penetrates through the first end portion to communicate with the mounting cavity; the connector comprises a first wiring terminal and a second wiring terminal which are oppositely arranged, the first wiring terminal is arranged towards the second end part, and the second wiring terminal is positioned at the first opening; and/or the mounting shell is also provided with a glue filling hole communicated with the mounting cavity, a sealing body is filled in a space between the outer wall of the connector and the inner wall of the mounting cavity, the connector is provided with a first wiring terminal, and the contact part of the first wiring terminal and the lead is positioned in the sealing body; or/and the connector is a pressure-bearing connector, and the pressure-bearing connector comprises one of an injection molding pressure-bearing connector, a rubber pressure-bearing connector and a glass sealing pressure-bearing connector.

The invention also provides a manufacturing method of the rotary connector assembly, which comprises the following steps: welding one end of the lead in the second wire passing groove of the conductive contact ring; sleeving the first insulating part and the conductive contact ring on the mounting rod, and assembling the first insulating part and the conductive contact ring so that the bulge part extends into the first mounting hole, and the first wire passing groove of the bulge part and the second wire passing groove of the conductive contact ring enclose a wire passing channel; fixing the first insulating part and the conductive contact ring so that the wire passing channel, the second wire passing hole and the first wire passing hole are sequentially connected; the other end of the lead sequentially passes through the wire passing channel, the second wire passing hole and the first wire passing hole to enter the mounting cavity, and extends out of the mounting cavity to be electrically connected with a first wiring terminal of the connector; sealingly mounting the connector into the mounting cavity; and injecting a liquid insulating material into the mounting cavity, filling the space between the outer wall of the connector and the inner wall of the mounting cavity with the liquid insulating material, and forming a sealing body after the liquid insulating material is solidified.

The invention solves the defects existing in the background technology, and has the beneficial effects that:

1. the second wire passing groove is arranged on the conductive contact ring, one end of the wire is fixed in the second wire passing groove, so that the wire is electrically connected with the conductive contact ring, and the wire can be easily welded in the second wire passing groove because the second wire passing groove is groove-shaped instead of circular;

2. according to the invention, the conductive contact ring and the first insulating part are sleeved on the mounting rod, so that the second wire passing groove of the conductive contact ring and the first wire passing groove of the first insulating part form the wire passing channel, a wire can conveniently pass through the wire passing channel, the wire passing channel is formed by the conductive contact ring and the first insulating part together after being assembled, and the space is saved;

3. directly cup jointing conductive contact ring on first insulator, on the axial direction along the bulge, conductive contact ring is no longer than the one end that this somatic part was kept away from to the bulge, make conductive contact ring and first insulator stack on the radial direction along the installation pole and place, on the axial direction along the installation pole, can not increase the length of installation pole because of setting up conductive contact ring, thereby be favorable to the miniaturization of the volume of swivelling joint ware subassembly, can enough release the inner space that oil development was equipped, again can reduction in production cost.

4. The rotary connector assembly can be provided with only one wire or a plurality of wires, when the plurality of wires are arranged, a plurality of conductive contact rings, a plurality of first insulating parts and a plurality of first wire passing holes are correspondingly arranged, different wires are connected with different conductive contact rings, the first insulating parts and the conductive contact rings are arranged at intervals, so that each conductive contact ring is mutually and electrically isolated from any other conductive contact ring, and the plurality of wires are also mutually and electrically isolated, so that signal interference or short circuit among the wires is prevented;

5. a plurality of first insulation parts are end to end connection in proper order for the installation pole is located inside all first insulation parts, and conductive contact ring is located all first insulation parts outsidely, thereby also keep apart conductive contact ring and installed part electricity through first insulation part between conductive contact ring and the installation shell, and the installed part can adopt the relatively wear-resisting metalwork, does not worry that metal installed part influences conductive contact ring's signal transmission.

Drawings

The invention is further illustrated by the following examples in conjunction with the drawings.

FIG. 1 is a cross-sectional structural schematic view of a rotary connector assembly of a preferred embodiment of the present invention;

FIG. 2 is a front structural schematic view of a rotary connector assembly of a preferred embodiment of the present invention;

FIG. 3 is an axial view of a mount of a preferred embodiment of the present invention

FIG. 4 is a cross-sectional schematic view of a mount of a preferred embodiment of the present invention;

FIG. 5 is a perspective view of a conductive contact ring of the preferred embodiment of the present invention;

FIG. 6 is a schematic plan view of a conductive contact ring of the preferred embodiment of the present invention;

FIG. 7 is a perspective view of a first insulator in accordance with a preferred embodiment of the present invention;

FIG. 8 is a cross-sectional structural view of the first insulating member of the preferred embodiment of the present invention;

fig. 9 is an axial view of the preferred embodiment of the present invention showing the construction of the first insulator and conductive contact ring assembly;

FIG. 10 is a schematic cross-sectional view of insulator two of the preferred embodiment of the present invention;

fig. 11 is a schematic cross-sectional view of a support disk of the preferred embodiment of the present invention;

FIG. 12 is a cross-sectional schematic view of a compression connector of a preferred embodiment of the present invention;

FIG. 13 is an axial view schematic diagram of a compression connector (injection molded compression connector) of a preferred embodiment of the present invention;

FIG. 14 is a second cross-sectional view of a compression connector (rubber compression connector) of the preferred embodiment of the present invention;

FIG. 15 is a cross-sectional schematic view of a pressure-bearing connector of the preferred embodiment of the present invention, labeled "III" (glass sealed pressure-bearing connector);

the wire connecting device comprises a mounting piece, a first connecting terminal, a second connecting terminal, a protrusion, a first wire passing groove, a wire passing channel and a first opening, wherein the mounting piece is a mounting piece;

1-an installation shell, 101-a threaded installation hole, 102-a sealing groove, 103-an installation cavity, 104-a glue filling hole, 105-a first wire passing hole, 106-a first anti-rotation convex key, 107-an installation rod, 108-a fixing hole, 109-a positioning pin hole and 1010-a circumferential contact surface;

2-a first insulator, 201-a body part, 202-an insulator ring peripheral surface, 203-a first wire through hole, 204-a mounting hole, 205-a second anti-rotation convex key and 206-a first anti-rotation key groove;

3-a conductive contact ring, 301-an annular contact surface, 302-a first mounting hole, 303-a second wire passing groove, 304-a first positioning hole and 305-a second anti-rotation key groove;

4-a second insulating part, 401-a butt joint guide surface, 402-an annular surface, 403-a second positioning hole, 404-a screw mounting hole;

5-connector, 51-injection molded pressure bearing connector, 511-injection molded body, 512-first support ring, 513-first contact element, 514-first sealing ring; 52-rubber pressure connector, 521-rubber, 522-second support ring, 523-second contact element and 524-sealing convex hull; 53-glass sealed pressure-bearing connector, 531-metal shell, 532-ceramic sleeve, 533-glass sleeve and 534-third contact element;

6-support disc, 601-pressure-bearing step hole, 602-mounting thread;

7-a second sealing ring, 8-a fixing bolt, 9-a sealing body, 10-a lead, 11-a positioning pin and 12-an installation cavity.

Detailed Description

The invention will now be described in further detail with reference to the accompanying drawings and examples, which are simplified schematic drawings and illustrate only the basic structure of the invention in a schematic manner, and thus show only the constituents relevant to the invention.

Detailed description of the preferred embodiment 1

As shown in fig. 1 to 11, a rotary connector assembly includes: the connector comprises a mounting part a, a connector 5 arranged inside the mounting part a, a first insulating part 2 and a conductive contact ring 3 which are sleeved on the mounting part a, and a lead 10 for connecting the conductive contact ring 3 and the connector 5.

Specifically, as shown in fig. 1 to 4, the mounting member a includes a mounting shell 1 and a mounting rod 107 connected to each other, and the mounting shell 1 and the mounting rod 107 are an integral structure formed integrally. The mounting shell 1 is hollow to form a mounting cavity 103, and the mounting shell 1 is provided with a first wire passing hole 105 communicated with the mounting cavity 103. The mounting rod 107 is provided with a first rotation-preventing convex key 106 in the circumferential direction.

As shown in fig. 1 to 4, the mounting case 1 includes a first end portion and a second end portion which are oppositely arranged, the first end portion is connected with the mounting rod 107, in a radial direction along the mounting rod 107, a length of the first end portion is greater than a diameter of the mounting rod 107, the second end portion is provided with a first opening h communicated with the mounting cavity 103, the first end portion is provided with a first wire passing hole 105, the first wire passing hole 105 extends along an axial direction of the mounting rod 107, and the first wire passing hole 105 penetrates through the first end portion to be communicated with the mounting cavity 103. The mounting shell 1 is further provided with a glue filling hole 104 communicated with the mounting cavity 103. The connector 5 is disposed in the mounting cavity 103. A support plate 6 for locking the connector 5 in the mounting cavity 103 is further provided at the first opening h of the mounting case 1.

Specifically, as shown in fig. 1 to 11, the connector 5 includes a first connection terminal b and a second connection terminal c, which are oppositely disposed, the first connection terminal b is disposed toward the first end, and the second connection terminal c is located at the first opening h. The space between the outer wall of the connector 5 and the inner wall of the mounting cavity 103 is filled with a sealing body 9, a first wiring terminal b is arranged on the connector 5, and the contact position of the first wiring terminal and the lead 10 is located in the sealing body 9. As shown in fig. 11, the outer wall of the support disk 6 is a stepped thread structure, the inner hole is a stepped hole, and two assembly holes 603 are formed in the end face of the tail portion. A threaded mounting hole 101 is further formed in the mounting cavity 103, and the threaded mounting hole 101 can be screwed with a mounting thread 602 on the outer wall of the support disc 6. The end of the second terminal c of the connector 5 penetrates through the support plate 6.

Specifically, as shown in fig. 1, fig. 2, and fig. 7 to fig. 9, the first insulating member 2 is sleeved on the mounting rod 107, and the first insulating member 2 is located between the conductive contact ring 3 and the mounting shell 1. The first insulating member 2 includes a body portion 201 and a protruding portion d connected to each other, the protruding portion d is formed by extending outward from an outer wall of the body portion 201 along an axial direction of the body portion 201, and the body portion 201 and the protruding portion d are an integral structure formed integrally. The cross-sectional area of the projection d is smaller than that of the body portion 201. The body 201 is provided with a second wire through hole 203; the outer wall of the protruding part d is provided with a first wire passing groove e, and the first wire passing groove e is communicated with the second wire passing hole 203. The first insulating part 2 is provided with a mounting hole 204 in a penetrating manner, the first insulating part 2 is sleeved on the mounting rod 107 through the mounting hole 204, the inner wall of the mounting hole 204 is provided with a first anti-rotation key groove 206, and the first anti-rotation convex key 106 can be butted with the first anti-rotation key groove 206 to realize circumferential fixation. The outer wall of the protrusion d is provided with a second rotation-preventing convex key 205.

Specifically, as shown in fig. 1, fig. 2, fig. 5, fig. 6, and fig. 9, the conductive contact ring 3 includes a first mounting hole 302, and the conductive contact ring 3 is sleeved on the mounting rod 107 through the first mounting hole 302. A part of the inner wall of the first mounting hole 302 extends outward in the radial direction of the conductive contact ring 3 to form a second wire passing groove 303. A second rotation-preventing key groove 305 is provided on the inner wall of the second mounting hole 302. The conductive contact ring 3 is fitted over the protrusion d, which is located in the first mounting hole 302. The second anti-rotation key 205 can be butted against the second anti-rotation keyway 305 to achieve circumferential fixation. The first wire passing groove e on the first insulating member 2 and the second wire passing groove 303 on the conductive contact ring 3 enclose a wire passing channel g. The wire passage g, the second wire hole 203 and the first wire hole 105 are sequentially communicated. The second wire passing groove 303 is arranged to facilitate the welding of the lead wire 10; the first wire passing groove e can be matched with the second wire passing groove 303 to form a wire passing channel g, so that the lead wire 10 can pass through the first insulating member 2.

As shown in fig. 1 to 9, the first insulator 2 is fixed to the mounting rod 107, and the conductive contact ring 3 is fixed to the mounting rod 107. The first insulating part 2 and the outer wall of the conductive contact ring 3 are both arranged on the circumferential wall surface of the same cylinder. The wire passage g, the second wire hole 203 and the first wire hole 105 all extend along the same straight line. The structure arrangement facilitates the lead 10 to pass through, so that the passing route of the lead 10 is shorter, and the space is saved. The central symmetry axes of the wire passage g, the second wire hole 203 and the first wire hole 105 are the same. Preferably, the wire passage g, the second wire hole 203 and the first wire hole 105 are all cylindrical holes with the same cross section size; the wire passage g, the second wire hole 203 and the first wire hole 105 are all cylindrical holes with equal diameters.

Specifically, as shown in fig. 1, 2 and 10, the second insulating member 4 is fixed to one end of the mounting rod 107 by the fixing bolt 8, and axially locks the conductive contact ring 3 and the first insulating member 2 to the mounting rod 107. As shown in fig. 8, the front section of the second insulating member 4 is a tapered abutting guide surface 401, the rear section is an annular surface 402, the end surface of the rear section is provided with a plurality of second positioning holes 403, and the middle section is a screw mounting hole 404.

Specifically, as shown in fig. 1 and 2, the conductive wire 10 is inserted into the first wire passing hole 105, one end of the conductive wire 10 is limited in the second wire passing groove 303 and electrically connected to the conductive contact ring 3, and the other end of the conductive wire 10 sequentially passes through the wire passing channel g, the second wire passing hole 203, the first wire passing hole 105 and electrically connected to the connector 5.

Specific example 2

In the first embodiment, as shown in fig. 1 to 11, the rotating connector assembly includes at least two first insulating members 2, at least two conductive contact rings 3, and at least two conductive wires 10. The total number of the first insulating members 2, the total number of the conductive contact rings 3, and the total number of all the wires are equal. The first insulating parts 2 and the conductive contact rings 3 are arranged at intervals, one first insulating part 2 is positioned between one conductive contact ring 3 and the mounting shell 1, and each conductive contact ring 3 is electrically isolated from any other conductive contact ring 3 through the first insulating part 2.

As shown in fig. 1 to 4, at least two first wire passing holes 105 are formed in the mounting shell 1, the at least two first wire passing holes 105 are uniformly distributed and annularly arranged on the outer circumference of the central axis of the mounting cavity 103, and the arrangement position of the first wire passing holes 105 avoids the mounting rod 107; each first wire through hole 105 corresponds to at least one wire through channel g and a second wire through hole 203 which are coaxially arranged on the first insulating part 2 and the conductive contact ring 3. The first insulator 2 and the contact ring 3 are alternately coaxially sleeved on the mounting rod 107, the top of the mounting rod is limited by the second insulator 4, the first insulator 2 and the second insulator 4 electrically isolate the contact ring 3, and the contact ring 3 is electrically isolated from the mounting part a.

Further, as shown in fig. 1, fig. 2, fig. 5, fig. 6, and fig. 9, the conductive contact ring 3 is designed as a circular ring, the periphery is an annular contact surface 301, the upper end surface of the conductive contact ring 3 is further provided with two first positioning holes 304, the upper end surface of the conductive contact ring 3 is located on the periphery of a second mounting hole 302 in the middle of the conductive contact ring 3, a second wire passing groove 303 formed in the inner wall of the second mounting hole 302 adopts a semi-circular structure, and a second anti-rotation key groove 305 is of a square brick structure. Two positioning holes 304 are also formed on the conductive contact ring 3. Further, the outer diameters of the plurality of sets of conductive contact rings 3, the first insulator 2 and the second insulator 4 are the same as the outer diameter of the circumferential contact surface 1010 of the mounting part a. The second wire passing groove 303 of the conductive contact ring 3 may be used as a soldering groove when it is required to be electrically connected to the conductive wire 10, and as a wire passing groove when it is only penetrated through the conductive wire 10. The semi-arc structure of the conductive contact ring 3 is matched with the semi-arc structure of the second wire passing hole 203 of the first insulating part 2 to form a right cylindrical through groove.

As shown in fig. 1 and 2, the connector 5 includes a supporting member capable of being installed in the installation seat, the supporting member is further provided with an insulator capable of being embedded in the installation seat, and the supporting member is provided with a plurality of contact elements in a penetrating manner. The contact portion is electrically connected to a contact in the connector 5. The insulator includes one or more of an injection molded body 511, rubber 521, a ceramic sleeve 532, and a glass sleeve 533. The connector 5 is one of an injection-molded connector 51, a rubber connector 52, and a glass-sealed connector 53. The connector 5 is selected according to the specific use temperature and the use environment liquid pressure of the product, when the temperature is less than 200 ℃ and the environment liquid pressure is less than 172Mpa, the connector 5 is preferably injection molded by rubber, a contact element and a pressure-bearing connector formed by vulcanization molding of a support ring or preferably a peek type injection molding piece, a support ring and a contact element; when the temperature is higher than 200 ℃ and the environmental liquid pressure is higher than 172Mpa, the connector 5 formed by sintering ceramic, glass, metal shell and contact piece is preferred.

But not limited thereto, in other embodiments, the number of the first insulating member 2, the conductive contact ring 3 and the conductive wires 10 may be adjusted according to the actual use requirement. For example, a wire 10 is welded to each of the 4 second wire passing grooves 303 of the 4 conductive contact rings 3 and 4 conductive contact rings 3, and the wire 10 can enter the mounting cavity 103 of the mounting member a along the wire passing channel g and the second wire passing hole 203 and the first wire passing hole 105. As shown in fig. 3 to 4 and 9, the adjacent first wire through holes 105 are distributed with an included angle of 90 degrees, but not limited to an angle of 90 degrees; the first anti-rotation convex key 106 on the mounting rod 107 is of a symmetrical structure, and the first anti-rotation convex key 106 and the first wire passing hole 105 form an included angle of 45 degrees, so that the first anti-rotation convex key 106 is prevented from influencing the first wire passing hole 105.

As shown in fig. 1, 2 and 10, the top end surface of the mounting rod 107 is provided with a fixing hole 108 for locking and fixing with the fixing bolt 8; the circumference contact surface 1010 of the mounting piece a is connected with the large diameter of the mounting piece a through a conical surface, the outer sealing mounting section of the mounting piece a is provided with a sealing groove 102 for sealing with the mounting cavity 12 of the equipment, meanwhile, the circumference contact surface 1010 of the mounting piece a is provided with two glue pouring holes 104 at different positions, and the step surfaces of the large diameter section of the mounting piece a and the outer sealing mounting section of the mounting piece a are provided with positioning pin holes 109.

Specific example 3

On the basis of embodiment 1, as shown in fig. 1 to 13, the connector 5 adopts an injection-molded connector 51, and the injection-molded connector 51 includes: the supporting device comprises a first supporting ring 512, a plurality of first contact pieces 513 arranged on the first supporting ring 512 in a penetrating way, and an injection molding body 511 at least partially wrapping the first contact pieces 513 is arranged on one side of the first supporting ring 512; and a first sealing ring 514 is arranged on the injection molding body 511 and is used for being in sealing engagement with the mounting cavity 103. Specifically, the injection-molded connector 51 includes: a plurality of injection molded bodies 511, a first support ring 512, a first contact member 513 and a first seal ring 514. Firstly, a first contact element 513 and a first support ring 512 are arranged in an injection mold, a plurality of first contact elements 513 are respectively arranged at the centers of injection molding holes of the first support ring 512 in a plug-in manner, the upper mold and the lower mold of the injection mold position two ends of the first contact element 513 to limit the first contact element 513 to axially and radially move in the injection molding hole of the first support ring 512, and the positions of the first contact element 513 and the support ring are ensured to be fixed, so that an injection molding framework is formed; secondly, injecting the peek particles into an injection molding framework at the injection molding temperature and pressure, and maintaining the pressure at the high temperature for a period of time to form an injection molding part; and finally, machining the injection molding alloy to form the injection molding pressure-bearing connector with the overall dimension, wherein one or more sealing grooves are axially formed for assembling an O-shaped sealing ring to be sealed with the mounting piece a. The two ends of the first contact 513 of the injection molding connector 51 are respectively a first wiring terminal b and a second wiring terminal c, the first wiring terminal b is connected with the lead 10, and the second wiring terminal c is located at the first opening h.

Specific example 4

In embodiment 1, as shown in fig. 1 to 12 and 14, the rubber connector 52 is used as the connector 5. The rubber connector 52 comprises a second support ring 522, a plurality of second contact members 523 are fixedly arranged on the second support ring 522 in a penetrating manner, and one side of the second support ring 522 is further provided with a rubber 521 at least partially wrapping the second contact members 523. Specifically, the rubber connector 52 includes: the plurality of second contact members 523, the second support ring 522 and the rubber 521 are installed in a vulcanization mold, the plurality of second contact members 523 are installed at the center of a vulcanization hole of the second support ring 522 through a plug, and the upper mold and the lower mold of the vulcanization mold position two ends of the second contact member 523 to limit the second contact member 523 to move axially and radially in the vulcanization hole of the second support ring 522, so that the positions of the second contact member 523 and the second support ring 522 are fixed, and a vulcanization framework is formed. Secondly, extruding the raw material of the rubber 521 into a vulcanization framework at a set temperature and pressure, and maintaining the pressure at a high temperature for a period of time to form a rubber connector 52; wherein the exterior of the rubber connector 52 is provided with a plurality of sealing bosses 524 for contact sealing with the interior of the mounting member a. The two ends of the second contact 523 of the rubber connector 52 are respectively a first connection terminal b and a second connection terminal c, the first connection terminal b is connected with the wire 10, and the second connection terminal c is located at the first opening h.

Specific example 5

On the basis of embodiment 1 or embodiment 2, as shown in fig. 1 to 12 and fig. 15, the connector 5 adopts a glass-sealed connector 53, the glass-sealed connector 53 includes a sintered component, and the sintered component includes a sintered structure assembled by a metal housing 531, a plurality of third contact members 534, a plurality of ceramic sleeves 532 and a plurality of glass sleeves 533. Specifically, the sintered part in the glass-sealed connector 53 is a sintered part formed by assembling and assembling the metal housing 531, the third contact members 534, the ceramic sleeves 532 and the glass sleeves 533, and then placing the sintered part into a sintering mold for high-temperature sintering and molding, and then performing the existing preparation processes such as glue pouring, descaling, electroplating and the like to form the glass-sealed pressure-bearing connector. Wherein metal casing 531 is equipped with one or multichannel seal groove structure for it is sealed with installed part a to assemble second sealing washer 7, and what second sealing washer 7 adopted is O type sealing washer structure. The metal shell 531 is provided with a plurality of sintering holes inside, the sintering holes are provided with limit steps, the ceramic sleeve 532, the glass sleeve 533 and the ceramic sleeve 532 are sequentially arranged in the sintering holes, and then the third contact piece 534, namely a pin, is arranged in the middle holes of the arranged ceramic sleeve 532, glass sleeve 533 and ceramic sleeve 532 to form a sintering assembly. The two ends of the third contact member 534 of the glass sealing connector 53 are respectively a first connection terminal b and a second connection terminal c, the first connection terminal b is connected with the wire 10, and the second connection terminal c is located at the first opening h.

Specific example 6

In any one of embodiments 1 to 5, as shown in fig. 1 to 12, the method for manufacturing a rotary connector assembly includes the following steps:

the second wire passing grooves 303 of the multiple groups of conductive contact rings 3 are welded with one ends of the wires 10, and the other ends of the wires 10 respectively pass through the first wire passing holes 203 of the first insulating member 2, enter the sealed cavity 103 of the housing through the first wire passing holes 105 of the mounting member a, and are welded with the contact members of the connector 5.

Specifically, one of the second wire passing grooves 303 of each of the 4 conductive contact rings 3 is welded with one of the conductive wires 10, and is fitted with the first wire passing holes 203 of the first insulating members 2 and circumferentially fixed. The assembly sequence is that the conductive contact ring 3 and the first insulating part 2 close to one end of the connector 5 are preferably assembled, the conducting wire 10 of the conductive contact ring 3 passes through the first wire passing hole 203 of the first insulating part 2 and the first wire passing hole 105 of the mounting part a, and so on, the conducting wire 10 of the contact ring 3 passes through the second wire passing groove 303 of the assembled conductive contact ring 3, the first wire passing hole 203 of the first insulating part 2 and the first wire passing hole 105 of the mounting part a, wherein between the mounting part a and the first insulating part 2, the first insulating part 2 is sleeved on the mounting rod 107 and is butted and limited with the first anti-rotation convex key 106 on the mounting rod 107 through the first anti-rotation key groove 206 on the first insulating part 2; sleeving the contact piece on the convex part d of the first insulating piece 2 and abutting against one side of the body part 201; a second anti-rotation convex key 205 outside the convex part d is matched with the first mounting hole 302 of the body part 201 in a butt joint way; the plurality of conductive contacts 3 and the plurality of sets of first insulating members 2 are mounted on the mounting bar 107 of the mounting part a at intervals in this cycle. The conductive contact pieces 3 and the first insulating pieces 2 are alternately sleeved on the mounting rod 107 of the mounting piece a. After the mounting member a has been fitted with a plurality of sets of contact rings 3 and first insulating members 2, the second insulating members 4 are fitted. The contact member and the first insulator 2 are locked to the mounting rod 107 by the fixing bolt 8 being locked and fixed to the fixing hole 108 at the end of the mounting member a. The locking thread of the fixing bolt 8 is coated with thread glue to realize the fixation between the fixing bolt 8 and the installation part a, wherein the fixing bolt 8 sinks into the second insulating part 4 or the end face of the fixing bolt 8 is flush with the end face of the second insulating part 4.

The lead 10 penetrates into the mounting cavity 103 from the first wire passing hole 105 of the mounting part a and is led into the tail end of the mounting part a, 4 groups of the lead 10 are respectively subjected to wire repair, wire stripping and wire-coating soldering on a contact element, namely one end of a contact pin, of the connector 5, and a heat-shrinkable tube is adopted to protect a welding spot; the welded connector 5 is assembled with a second sealing ring 7, namely an O-shaped sealing ring, and the second sealing ring is installed into the installation part a from the tail part of the installation part a; the supporting disc 6 is arranged outside the installation part a, the assembling thread between the supporting disc 6 and the installation part a is coated with thread glue, the end face of the supporting disc 6 is in contact with the step of the inner hole of the installation part a, the large-diameter end face of the supporting disc 6 is flush with or higher than the tail end face of the installation part a, the connector 5 is positioned in the middle hole of the supporting disc 6, and the welding end is exposed out of the end face of the supporting disc 6.

The connector 5 is pushed into the housing sealing chamber 103 of the fitting a, the support plate 6 mounted at the end of the fitting a is locked, and the sealing body 9 is encapsulated in the fitting sealing chamber 103 through the potting hole 104 formed in the fitting a.

Epoxy resin or rubber or polyurethane is used for being punched into the shell sealing cavity 103 of the mounting piece a from the glue filling hole 104 of the mounting piece a, filling is full, the pressure-bearing end face of the connector 5 is contacted with the support ring surface of the support disc 6, the filling material cannot overflow the surface of the mounting piece a, and the filling material is solidified; and (3) the end surfaces of the mounting part a and the supporting disc 6 are machined, the end surface of the supporting disc 6 is ensured to be flush with the end surface of the mounting part a, a second sealing ring 7, namely an O-shaped sealing ring, is arranged in the sealing groove 102 of the mounting part a, the mounting step surface is arranged in the positioning pin 11, and the product is arranged in the mounting cavity 12 of the equipment.

The working principle is as follows:

as shown in fig. 1 to 12, a rotary connector assembly and a method for manufacturing the same, which implements an electrical connector of a plurality of coaxially assembled contacts of a conductive contact ring 3 and a connector 5 by welding a wire, wherein the wire 10 passes through a second wire passing groove 303 and a first wire passing hole 203 between the contact ring 3 and a first insulating member 2, the conductive contact ring 3 and the first insulating member 2 are coaxially installed on an installation rod 107 of an installation part a, the conductive contact ring 3 is fastened and fixed by 2 first insulating members 2, an anti-rotation function is implemented between the conductive contact ring 3 and the first insulating member 2 by a first anti-rotation key groove 206 matched with a key and a groove of a first anti-rotation key 106, the anti-rotation key groove 206 of the first insulating member 2 is matched with the first anti-rotation key 106 of the installation part a to implement anti-rotation of the first anti-rotation key groove and the groove, second locating hole 403 of second insulating part 4 is concentric hole with first locating hole 304 of electrically conductive contact ring 3, inside is equipped with locating pin 11 and realizes preventing changeing between the two, and then reach the product when rotating, electrically conductive contact ring 3 and first insulating part 2 are fixed with installed part a, utilize supporting disk 6 to support connector 5 of installing in installation cavity 103 simultaneously, connector 5 and supporting disk 6's pressure-bearing step hole 601 cooperation contact, utilize simultaneously the encapsulating hole 104 of installed part a to squeeze the seal into the installation cavity 103 of installed part an in with the seal, realize the sealed packing of installation cavity 103 of installed part a, avoid the direct pressure-bearing of connector 5, play the cushioning effect, and play the effect of protection solder joint, guarantee the contact stability between electrically conductive contact ring 3 and the connector 5, the electrical stability and the structural stability of product have been promoted.

Because the coaxial rotary connector is positioned in the logging equipment, the logging equipment can ensure that the coaxial rotary connector is in rotary contact with the butt joint end when rotating or rotating, and the coaxial rotary connector has higher wear-resistant characteristic and structural strength. The coaxial rotary connector can transmit two groups of signals or a plurality of groups of signals, and the requirement on the radial installation space of the installation space is reduced.

According to the coaxial rotary connector, the pressure-bearing sealing function is realized by adopting the inner hole sealing through the pressure-bearing connection of the mounting cavity 103 of the mounting part a of the coaxial rotary connector in an assembling mode, the difficulty of integral injection molding or glass seal sintering or rubber vulcanization of a product is reduced, and the production cost is greatly reduced. The sealing body 9 is filled in the mounting cavity 103, the sealing body 9 is made of epoxy resin, rubber or polyurethane, and the like, so that the cavity can be effectively filled, and the deformation of the mounting cavity 103 in a high-temperature and high-hydraulic environment is avoided; the connector 5 is sealed for the first time, and the hydraulic pressure born by a second sealing ring 7 on the pressure-bearing connector is reduced; the coaxial rotary connector 5 has a fixing function on the lead 10, and avoids the problems of loosening of welding points and the like under vibration and impact environments. Meanwhile, the outer diameter of the first insulating part 2 is larger than or equal to that of the conductive contact ring 3, so that the possibility of rigid contact between the contact ring 3 and a butted product can be effectively avoided, and the safety characteristic in the product plugging and unplugging process is ensured. The invention can select different connectors 5 according to the specific use condition of the product. With the increase of the application depth and the working temperature of products, a rubber vulcanization molding pressure-bearing connector, an injection molding pressure-bearing connector and a ceramic-glass-ceramic sintering pressure-bearing connector are sequentially selected. The cooperation design of connector 5, installed part a and supporting disk 6 effectively guarantees when coaxial rotary connector is the pressure-bearing, and liquid pressure can effectively transmit supporting disk 6 on, transmits the step of mounting hole through supporting disk 6, reduces the risk that installed part warp and connector 5 warp.

In light of the foregoing description of the preferred embodiment of the present invention, it is to be understood that various changes and modifications may be made by one 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. A rotary connector assembly, comprising:

the mounting component (a) comprises a mounting shell (1) and a mounting rod (107) which are connected with each other, the mounting shell (1) is hollow to form a mounting cavity (103), and a first wire passing hole (105) communicated with the mounting cavity (103) is formed in the mounting shell (1);

a connector (5) disposed within the mounting cavity (103);

the first insulating part (2) is sleeved on the mounting rod (107), the first insulating part (2) comprises a body part (201) and a protruding part (d) which are connected with each other, and a second wire passing hole (203) is formed in the body part (201);

the conductive contact ring (3) comprises a first mounting hole (302), and the conductive contact ring (3) is sleeved on the mounting rod (107) through the first mounting hole (302);

and a wire (10);

the first insulating part (2) is positioned between the conductive contact ring (3) and the mounting shell (1), a first wire passing groove (e) is formed in the outer wall of the protruding part (d), and the first wire passing groove (e) is communicated with the second wire passing hole (203); a part of the inner wall of the first mounting hole (302) is sunken to form a second wire passing groove (303); the bulge (d) is positioned in the first mounting hole (302), and the first wire passing groove (e) and the second wire passing groove (303) enclose a wire passing channel (g); one end of the lead (10) is fixed in the second wire passing groove (303) and electrically connected with the conductive contact ring (3), and the other end of the lead passes through the wire passing channel (g), the second wire passing hole (203), the first wire passing hole (105) and the connector (5) and is electrically connected.

2. The rotary connector assembly according to claim 1, wherein the outer circumferential area of the body portion (201) is larger than the outer circumferential area of the projection (d), the conductive contact ring (3) being fitted over the projection (d) and abutting the body portion (201), the conductive contact ring (3) not exceeding an end of the projection remote from the body portion (201) in an axial direction along the projection (d).

3. The rotary connector assembly according to claim 1, wherein the first insulator (2) is fixed relative to the mounting post (107) and the conductive contact ring (3) is fixed relative to the mounting post (107);

and/or the outer walls of the first insulating part (2) and the conductive contact ring (3) are on the same cylindrical circumferential wall surface.

4. The rotary connector assembly according to claim 1, wherein the wire passage channel (g), the second wire through hole (203) and the first wire through hole (105) all extend along a same straight line;

and/or the central symmetry axes of the wire passing channel (g), the second wire passing hole (203) and the first wire passing hole (105) are the same;

and/or the wire passing channel (g), the second wire passing hole (203) and the first wire passing hole (105) are cylindrical holes with the same cross section size;

and/or the wire passing channel (g), the second wire passing hole (203) and the first wire passing hole (105) are all cylindrical holes with equal diameters.

5. The rotating connector assembly according to claim 1,

a first anti-rotation convex key (106) extending along the axial direction of the mounting rod (107) is arranged on the outer wall of the mounting rod (107), a mounting hole (204) penetrates through the first insulating part (2) along the axial direction of the first insulating part, the first insulating part (2) is sleeved on the mounting rod (107) through the mounting hole (204), a first anti-rotation key slot (206) extending outwards along the radial direction of the first insulating part (2) is arranged on the inner wall of the mounting hole (204), and the first anti-rotation convex key (106) extends into the first anti-rotation key slot (206) to realize circumferential relative fixation of the mounting rod (107) and the first insulating part (2);

or/and a second anti-rotation convex key (205) extending along the axial direction of the convex part is arranged on the outer wall of the convex part (d), a second anti-rotation key groove (305) extending outwards along the radial direction of the conductive contact ring (3) is arranged on the inner wall of the first mounting hole (302), and the second anti-rotation convex key (205) extends into the second anti-rotation key groove (305) to realize the circumferential relative fixation of the first insulating part (2) and the conductive contact ring (3);

and/or the rotating connector assembly further comprises a second insulating piece (4) and a fixing bolt (8), wherein the second insulating piece (4) is fixed with one end, far away from the mounting shell (1), of the mounting rod (107) through the fixing bolt (8) so as to axially fix the conductive contact ring (3) and the first insulating piece (2) between the second insulating piece (4) and the mounting shell (1).

6. The rotating connector assembly according to claim 1,

the mounting shell (1) and the mounting rod (107) are of an integrally formed integral structure;

and/or the body part (201) and the protruding part (d) are of an integrally formed integral structure;

and/or the protrusion part (d) is formed by extending outwards from the outer wall of the body part (201) along the axial direction of the body part (201);

and/or the cross-sectional area of the projection (d) is smaller than the cross-sectional area of the body portion (201).

7. The rotary connector assembly according to claim 1, characterized in that it comprises at least two first insulating members (2), at least two electrically conductive contact rings (3), at least two first wire passing holes (105) and at least two wires (10); the first insulating parts (2) and the conductive contact rings (3) are arranged at intervals, one first insulating part (2) is positioned between one conductive contact ring (3) and the mounting shell (1), and each conductive contact ring (3) is electrically isolated from any other conductive contact ring (3) through the first insulating part (2).

8. The rotating connector assembly according to claim 7, wherein the wire comprises a conductive core and an insulating layer, the insulating layer wrapping an outer periphery of the conductive core, both ends of the conductive core protruding from the insulating layer; one end of each conducting wire is electrically connected with one of the conductive contact rings, the other end of each conducting wire penetrates through the wire passing channel (g), the second wire passing hole (203), the first wire passing hole (105) and the connector (5) to be electrically connected, and the conducting wire is electrically isolated from other conductive contact rings;

or/and all the wire passing channels (g), all the second wire passing holes (203) and all the first wire passing holes (105) extend along the same group of axes which are parallel to each other, and each wire passes through at least one wire passing channel (g), at least one second wire passing hole (203) and at least one first wire passing hole (105) along one of the axes

Or/and all the first insulating pieces (2) are sequentially connected end to end.

9. The rotating connector assembly according to claim 8, wherein the mounting housing (1) comprises a first end portion and a second end portion which are oppositely arranged, the first end portion is connected with the mounting rod (107), the length of the first end portion is larger than the diameter of the mounting rod (107) along the radial direction of the mounting rod, the second end portion is opened with a first opening (h) communicated with the mounting cavity (103), the first end portion is opened with the first wire passing hole (105), the first wire passing hole (105) extends along the axial direction of the mounting rod (107), and the first wire passing hole (105) penetrates through the first end portion to be communicated with the mounting cavity (103); the connector (5) comprises a first connection terminal (b) and a second connection terminal (c) which are oppositely arranged, the first connection terminal (b) is arranged towards the second end part, and the second connection terminal (c) is positioned at the first opening (h);

and/or a glue pouring hole (104) communicated with the installation cavity (103) is further formed in the installation shell (1), a sealing body (9) is filled in a space between the outer wall of the connector (5) and the inner wall of the installation cavity (103), a first wiring terminal (b) is arranged on the connector (5), and the contact position of the first wiring terminal and the lead (10) is located in the sealing body (9);

or/and the connector (5) is a pressure-bearing connector, and the pressure-bearing connector comprises one of an injection molding pressure-bearing connector (51), a rubber pressure-bearing connector (52) and a glass sealing pressure-bearing connector (53).

10. A method of manufacturing a rotary connector assembly as claimed in any one of claims 1 to 9, comprising the steps of:

welding one end of the lead (10) in a second wire passing groove (303) of the conductive contact ring (3);

sleeving a first insulating part (2) and a conductive contact ring (3) on the mounting rod (107), and assembling the first insulating part (2) and the conductive contact ring (3) to ensure that a bulge (d) extends into a first mounting hole (302), wherein a wire passing channel (g) is enclosed by a first wire passing groove (e) of the bulge (d) and a second wire passing groove (303) of the conductive contact ring (3);

fixing the first insulating piece (2) and the conductive contact ring (3) so that the wire passing channel (g), the second wire passing hole (203) and the first wire passing hole (105) are sequentially connected;

the other end of the lead (10) sequentially passes through the wire passing channel (g), the second wire passing hole (203) and the first wire passing hole (105) to enter the mounting cavity (103), and extends out of the mounting cavity (103) to be electrically connected with a first wiring terminal (b) of the connector (5);

hermetically installing the connector (5) into the installation cavity (103);

and injecting a liquid insulating material into the mounting cavity (103), filling the space between the outer wall of the connector (5) and the inner wall of the mounting cavity (103) with the liquid insulating material, and forming a sealing body (9) after the liquid insulating material is solidified.