Rotating Connector Assembly and Method of Manufacturing the Same

Abstract

The present invention relates to a rotary connector assembly and a manufacturing method thereof. The rotary connector assembly is assembled from a mounting member, a pressure-bearing connector, a support disc, a plurality of conductive contact rings, a first insulating member, a second insulating member, fixing bolts, positioning pins, and wires. The mounting member includes a mounting rod, and one end of the mounting rod is provided with a mounting seat; the adapter includes a connector disposed in the mounting seat and a plurality of spaced contact portions disposed on the mounting rod, and the contact portions are electrically connected to contact members in the connector. The present invention provides a rotary connector assembly and a manufacturing method thereof, which have wear resistance, high temperature and high hydraulic pressure resistance, relatively high structural member strength, and small occupied application space; have a rotating function, and the product can collect or transmit signals in a rotating device.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and particularly relates to a multi-core rotary connector with a coaxial structure that can work under high temperature and high hydraulic pressure conditions, and more particularly to a rotary connector assembly and a manufacturing method thereof. Background Art

[0002] Currently, with the continuous development of the types of connectors, the demand for connectors is becoming more and more diverse. It is required that the connector itself can be used as a structural member and also as an electrical connection member. The functions and structures of electrical connectors in the logging field are particularly complex. Not only ordinary non-coaxial and non-rotatable connectors and components are required, but also two-core or multi-core coaxial and rotatable connectors are needed to meet the structural strength under high temperature and high hydraulic pressure environments, and multiple groups of electrical signal acquisition and transmission are also required, which all impose strict requirements on the product design.

[0003] In the existing technology, the internal wiring of the electrical connector structure is complex, and it is easy to cause short circuits between multiple wires or signal interference with each other. The overall volume is large and the production cost is high. Summary of the Invention

[0004] The present invention overcomes the deficiencies of the prior art and provides a rotary connector assembly and a manufacturing method thereof. The rotary connector assembly is small in volume, can release the internal space of oil extraction equipment, and reduce the production cost; the wires are electrically isolated from each other and the signal transmission is stable.

[0005] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] The present invention provides a rotary connector assembly, including: a mounting member, the mounting member includes a mounting shell and a mounting rod connected to each other, the interior of the mounting shell is hollow to form a mounting cavity, and a first wire passing hole communicating with the mounting cavity is provided on the mounting shell; a connector disposed in the mounting cavity; a first insulating member sleeved on the mounting rod, the first insulating member includes a body portion and a protruding portion connected to each other, and a second wire passing hole is provided on the body portion; a conductive contact ring including a first mounting hole, the conductive contact ring is sleeved on the mounting rod through the first mounting hole; and a wire; wherein, the first insulating member is located between the conductive contact ring and the mounting shell, a first wire passing groove is provided on the outer wall of the protruding portion, and the first wire passing groove communicates with the second wire passing hole; a part of the inner wall of the first mounting hole is recessed to form a second wire passing groove; the protruding portion is located in the first mounting hole, and the first wire passing groove and the second wire passing groove enclose a wire passing channel; one end of the wire is fixed in the second wire passing groove and electrically connected to the conductive contact ring, and the other end passes through the wire passing channel, the second wire passing hole, and the first wire passing hole and is electrically connected to the connector.

[0007] In a preferred embodiment of the present invention, the outer peripheral area of the main 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 main body portion. In the axial direction of the protruding portion, the conductive contact ring does not exceed the end of the protruding portion away from the main body portion.

[0008] In a preferred embodiment of the present invention, the first insulating member is relatively fixed to the mounting rod, and the conductive contact ring is relatively fixed to the mounting rod, and / or the outer walls of the first insulating member and the conductive contact ring are both on the circumferential wall surface of the same cylinder.

[0009] In a preferred embodiment of the present invention, the wire passing channel, the second wire passing hole, and the first wire passing hole all extend along the 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-sectional 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.

[0010] In a preferred embodiment of the present invention, a first anti-rotation convex key extending along its axial direction is provided on the outer wall of the mounting rod. The first insulating member is axially penetrated with a mounting hole, and the first insulating member is sleeved on the mounting rod through the mounting hole. A first anti-rotation key groove extending radially outward along the first insulating member is provided on the inner wall of the mounting hole. The first anti-rotation convex key extends into the first anti-rotation key groove to achieve circumferential relative fixation between the mounting rod and the first insulating member; or / and a second anti-rotation convex key extending along its axial direction is provided on the outer wall of the protruding portion. A second anti-rotation key groove extending radially outward along the conductive contact ring is provided on the inner wall of the first mounting hole. The second anti-rotation convex key extends into the second anti-rotation key groove to achieve circumferential relative fixation between the first insulating member and the conductive contact ring; or / and the rotary connector assembly further includes a second insulating member and a fixing bolt. The second insulating member is fixed to the end of the mounting rod away from the mounting shell through the fixing bolt to axially fix the conductive contact ring and the first insulating member between the second insulating member and the mounting shell.

[0011] In a preferred embodiment of the present invention, the mounting shell and the mounting rod are an integrally formed integral structure; and / or the main body portion and the protruding portion are an integrally formed integral structure; and / or the protruding portion extends outward along the axial direction of the main body portion from the outer wall of the main body portion; and / or the cross-sectional area of the protruding portion is smaller than the cross-sectional area of the main body portion.

[0012] In a preferred embodiment of the present invention, the rotary connector assembly includes 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 members are arranged at intervals from the conductive contact rings, and one of the first insulating members is located between one conductive contact ring and the mounting shell, and each conductive contact ring is electrically isolated from any other conductive contact ring by the first insulating member.

[0013] In a preferred embodiment of the present invention, the wire includes a conductive core and an insulating layer, the insulating layer wraps the outer periphery of the conductive core, and both ends of the conductive core extend out of the insulating layer; one end of each wire is electrically connected to one of the conductive contact rings, and the other end passes through the wire passing channel, the second wire passing hole, and the first wire passing hole to be electrically connected to the connector, and the wire is 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 set of 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 members are connected end to end in sequence.

[0014] In a preferred embodiment of the present invention, the mounting shell includes a first end portion and a second end portion arranged oppositely, the first end portion is connected to the mounting rod, in the radial direction of the mounting rod, the length of the first end portion is greater than the diameter of the mounting rod, the second end portion is provided with a first opening communicating with the mounting cavity, the first end portion is provided with 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 includes a first wiring terminal and a second wiring terminal arranged oppositely, the first wiring terminal faces the second end portion, and the second wiring terminal is located at the first opening; and / or, the mounting shell is further provided with a potting hole communicating with the mounting cavity, the space between the outer wall of the connector and the inner wall of the mounting cavity is filled with a sealing body, the connector is provided with a first wiring terminal, and the contact between the first wiring terminal and the wire is located within the sealing body; or / and, the connector is a pressure-bearing connector, and the pressure-bearing connector includes one of an injection-molded pressure-bearing connector, a rubber pressure-bearing connector, and a glass-sealed pressure-bearing connector.

[0015] The present invention also provides a manufacturing method of the above-mentioned rotary connector assembly, comprising the following steps: welding one end of a wire in the second wire groove of the conductive contact ring; sleeving the first insulating member and the conductive contact ring on the mounting rod, assembling the first insulating member and the conductive contact ring so that the protruding portion extends into the first mounting hole, and the first wire groove of the protruding portion and the second wire groove of the conductive contact ring form a wire passing channel; fixing the first insulating member and the conductive contact ring so that the wire passing channel, the second wire passing hole, and the first wire passing hole are connected in sequence; passing the other end of the wire through the wire passing channel, the second wire passing hole, and the first wire passing hole in sequence to enter the installation cavity, and extending out from the installation cavity to be electrically connected to the first wiring terminal of the connector; sealing and installing the connector into the installation cavity; injecting liquid insulating material into the installation cavity, and the liquid insulating material fills the space between the outer wall of the connector and the inner wall of the installation cavity, and forms a sealing body after the liquid insulating material solidifies.

[0016] The present invention solves the defects existing in the background art, and the beneficial effects of the present invention are:

[0017] 1. The present invention provides a second wire groove on the conductive contact ring, and fixes one end of the wire in the second wire groove to electrically connect the wire and the conductive contact ring. Since the second wire groove is in a groove shape rather than a circular ring shape, the wire can be easily welded in the second wire groove;

[0018] 2. The present invention sleeves both the conductive contact ring and the first insulating member on the mounting rod, so that the second wire groove of the conductive contact ring and the first wire groove of the first insulating member form a wire passing channel, which is convenient for the wire to pass through the wire passing channel. The wire passing channel is jointly formed after the conductive contact ring and the first insulating member are assembled, saving space;

[0019] 3. The conductive contact ring is directly sleeved on the first insulating member. In the axial direction of the protruding portion, the conductive contact ring does not exceed the end of the protruding portion away from the body portion, so that the conductive contact ring and the first insulating member are stacked in the radial direction of the mounting rod. In the axial direction of the mounting rod, the length of the mounting rod will not be increased due to the setting of the conductive contact ring, which is beneficial to the miniaturization of the volume of the rotary connector assembly, can not only release the internal space of the oil extraction equipment, but also reduce the production cost.

[0020] 4. The rotary connector assembly of the present invention can be provided with only one wire or multiple wires. When multiple wires are provided, multiple conductive contact rings, multiple first insulating members, and multiple first wire passing holes are correspondingly provided. Different wires are connected to different conductive contact rings, and the first insulating members and the conductive contact rings are arranged at intervals, so that each conductive contact ring is electrically isolated from any other conductive contact ring, and the multiple wires are also electrically isolated from each other, thereby preventing signal interference or short circuit between the wires;

[0021] 5. Multiple first insulating members are connected end to end in sequence, such that the mounting rod is located inside all the first insulating members, the conductive contact ring is located outside all the first insulating members, and the conductive contact ring and the mounting shell are also isolated by the first insulating member to electrically isolate the conductive contact ring from the mounting member. The mounting member can be made of a relatively wear-resistant metal part, without worrying that the metal mounting member will affect the signal transmission of the conductive contact ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the drawings and embodiments.

[0023] Figure 1 is a schematic cross-sectional structure view of a rotary connector assembly according to a preferred embodiment of the present invention;

[0024] Figure 2 is a schematic front view structure view of a rotary connector assembly according to a preferred embodiment of the present invention;

[0025] Figure 3 is an axonometric schematic view of a mounting member according to a preferred embodiment of the present invention

[0026] Figure 4 is a schematic cross-sectional view of a mounting member according to a preferred embodiment of the present invention;

[0027] Figure 5 is a three-dimensional structure schematic view of a conductive contact ring according to a preferred embodiment of the present invention;

[0028] Figure 6 is a planar structure schematic view of a conductive contact ring according to a preferred embodiment of the present invention;

[0029] Figure 7 is a three-dimensional structure schematic view of a first insulating member according to a preferred embodiment of the present invention;

[0030] Figure 8 is a schematic cross-sectional structure view of a first insulating member according to a preferred embodiment of the present invention;

[0031] Figure 9 is an axonometric structure schematic view when a first insulating member and a conductive contact ring are assembled together according to a preferred embodiment of the present invention;

[0032] Figure 10 is a schematic cross-sectional view of a second insulator according to a preferred embodiment of the present invention;

[0033] Figure 11 is a schematic cross-sectional view of a support disk according to a preferred embodiment of the present invention;

[0034] Figure 12 is a schematic cross-sectional view of a pressure-bearing connector according to a preferred embodiment of the present invention Figure 1 (injection molded pressure-bearing connector);

[0035] Figure 13 Is an axonometric schematic view of the pressure-bearing connector of the preferred embodiment of the present invention (injection-molded pressure-bearing connector);

[0036] Figure 14 Is a cross-sectional schematic view of the pressure-bearing connector of the preferred embodiment of the present invention Figure 2 (rubber pressure-bearing connector);

[0037] Figure 15 Is a cross-sectional schematic view of the pressure-bearing connector of the preferred embodiment of the present invention Figure 3 (glass-sealed pressure-bearing connector);

[0038] Wherein, a - mounting member, b - first terminal, c - second terminal, d - protruding portion, e - first wire groove, g - wire passage, h - first opening;

[0039] 1 - mounting shell, 101 - threaded mounting hole, 102 - sealing groove, 103 - mounting cavity, 104 - potting hole, 105 - first wire hole, 106 - first anti-rotation convex key, 107 - mounting rod, 108 - fixing hole, 109 - positioning pin hole, 1010 - circumferential contact surface;

[0040] 2 - first insulating member, 201 - body portion, 202 - circumferential surface of insulator, 203 - first wire hole, 204 - mounting hole, 205 - second anti-rotation convex key, 206 - first anti-rotation key groove;

[0041] 3 - conductive contact ring, 301 - annular contact surface, 302 - first mounting hole, 303 - second wire groove, 304 - first positioning hole, 305 - second anti-rotation key groove;

[0042] 4 - second insulating member, 401 - docking guiding surface, 402 - annular surface, 403 - second positioning hole, 404 - screw mounting hole;

[0043] 5 - connector, 51 - injection-molded pressure-bearing connector, 511 - injection-molded body, 512 - first support ring, 513 - first contact member, 514 - first sealing ring; 52 - rubber pressure-bearing connector, 521 - rubber, 522 - second support ring, 523 - second contact member, 524 - sealing convex; 53 - glass-sealed pressure-bearing connector, 531 - metal shell, 532 - ceramic sleeve, 533 - glass sleeve, 534 - third contact member;

[0044] 6 - support disk, 601 - pressure-bearing step hole, 602 - mounting thread;

[0045] 7 - second sealing ring, 8 - fixing bolt, 9 - sealing body, 10 - wire, 11 - positioning pin, 12 - mounting cavity. Detailed implementation mode

[0046] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present invention in a schematic manner, so they only show the components related to the present invention. Specific Embodiment 1

[0048] As Figures 1 to 11 shown, a rotary connector assembly includes: a mounting member a, a connector 5 disposed inside the mounting member a, a first insulating member 2 and a conductive contact ring 3 sleeved on the mounting member a, and a wire 10 connecting the conductive contact ring 3 and the connector 5.

[0049] Specifically, as Figures 1 to 4 shown, the mounting member a includes a mounting shell 1 and a mounting rod 107 which are connected to each other. The mounting shell 1 and the mounting rod 107 are an integrally formed integral structure. The inside of the mounting shell 1 is hollow to form a mounting cavity 103, and a first wire passing hole 105 communicating with the mounting cavity 103 is provided on the mounting shell 1. A first anti-rotation key 106 is provided on the circumference of the mounting rod 107.

[0050] As Figures 1 to 4 shown, the mounting shell 1 includes a first end portion and a second end portion which are oppositely arranged. The first end portion is connected to the mounting rod 107. In the radial direction of the mounting rod 107, the length of the first end portion is greater than the diameter of the mounting rod 107. The second end portion is provided with a first opening h communicating 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 the axial direction of the mounting rod 107 and penetrates the first end portion to communicate with the mounting cavity 103. A potting hole 104 communicating with the mounting cavity 103 is also provided on the mounting shell 1. The connector 5 is disposed in the mounting cavity 103. A support disk 6 for locking the connector 5 in the mounting cavity 103 is also provided at the first opening h of the mounting shell 1.

[0051] Specifically, as Figures 1 to 11 shown, the connector 5 includes a first wiring terminal b and a second wiring terminal c which are oppositely arranged. The first wiring terminal b faces the first end portion, and the second wiring 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. The connector 5 is provided with a first wiring terminal b, and the contact portion between the first wiring terminal and the wire 10 is located inside the sealing body 9. As Figure 11 shown, 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 provided on the tail end face. A threaded mounting hole 101 is also provided in the mounting cavity 103, and the threaded mounting hole 101 can be screwed with the mounting thread 602 on the outer wall of the support disk 6. The end portion of the second wiring terminal c of the connector 5 passes through the support disk 6.

[0052] Specifically, as Figure 1 、Figure 2 , Figures 7 to 9 As shown, 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 that are connected to each other. The protruding portion d extends outward along the axial direction of the outer wall of the body portion 201. The body portion 201 and the protruding portion d are an integrally formed integral structure. The cross-sectional area of the protruding portion d is smaller than the cross-sectional area of the body portion 201. A second wire passing hole 203 is formed in the body portion 201; a first wire passing groove e is formed on the outer wall of the protruding portion d, and the first wire passing groove e communicates with the second wire passing hole 203. An installation hole 204 is formed in the first insulating member 2. The first insulating member 2 is sleeved on the mounting rod 107 through the installation hole 204. A first anti-rotation key groove 206 is provided on the inner wall of the installation hole 204. The first anti-rotation convex key 106 can be docked with the first anti-rotation key groove 206 to achieve circumferential fixation. A second anti-rotation convex key 205 is provided on the outer wall of the protruding portion d.

[0053] Specifically, as Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 9 As shown, the conductive contact ring 3 includes a first installation hole 302. The conductive contact ring 3 is sleeved on the mounting rod 107 through the first installation hole 302. A part of the inner wall of the first installation hole 302 extends outward along the radial direction of the conductive contact ring 3 to form a second wire passing groove 303. A second anti-rotation key groove 305 is provided on the inner wall of the second installation hole 302. The conductive contact ring 3 is sleeved on the protruding portion d, and the protruding portion d is located in the first installation hole 302. The second anti-rotation convex key 205 can be docked with the second anti-rotation key groove 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 passing channel g, the second wire passing hole 203, and the first wire passing hole 105 are sequentially communicated. The setting of the second wire passing groove 303 facilitates the welding of the wire 10; the first wire passing groove e can cooperate with the second wire passing groove 303 to form a wire passing channel g, so that the wire 10 can pass through the first insulating member 2.

[0054] Such as Figures 1 to 9As shown, the first insulating member 2 is fixedly opposed to the mounting rod 107, and the conductive contact ring 3 is fixedly opposed to the mounting rod 107. The outer walls of the first insulating member 2 and the conductive contact ring 3 are both on the circumferential wall surface of the same cylinder. The wire passing channel g, the second wire passing hole 203, and the first wire passing hole 105 all extend along the same straight line. Such a structural arrangement facilitates the passing of the wire 10, making the passing path of the wire 10 shorter and saving space. Moreover, 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. Preferably, the wire passing channel g, the second wire passing hole 203, and the first wire passing hole 105 are all cylindrical holes with the same cross-sectional size; 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.

[0055] Specifically, as Figure 1 , Figure 2 , Figure 10 shown, the second insulating member 4 is fixed to one end of the mounting rod 107 through the fixing bolt 8, and axially locks the conductive contact ring 3 and the first insulating member 2 on the mounting rod 107. As Figure 8 shown, the front section of the second insulating member 4 is a conical butt guiding surface 401, the rear section is an annular surface 402, the tail end face is provided with a plurality of second positioning holes 403, and the middle part is a screw mounting hole 404.

[0056] Specifically, as Figure 1 , Figure 2 shown, the wire 10 is passed through the first wire passing hole 105. One end of the wire 10 is limited in the second wire passing groove 303 and electrically connected to the conductive contact ring 3. The other end of the wire 10 sequentially passes through the wire passing channel g, the second wire passing hole 203, and the first wire passing hole 105 and is electrically connected to the connector 5. Specific Embodiment 2

[0058] On the basis of Embodiment 1, as Figures 1 to 11 shown, the rotary connector assembly includes at least two first insulating members 2, at least two conductive contact rings 3, and at least two 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 members 2 and the conductive contact rings 3 are arranged at intervals, and one of the first insulating members 2 is located between one conductive contact ring 3 and the mounting shell 1. Each conductive contact ring 3 is electrically isolated from any other conductive contact ring 3 through the first insulating member 2.

[0059] As Figures 1 to 4As shown in the figure, at least two first wire passing holes 105 are provided on the installation shell 1. The at least two first wire passing holes 105 are evenly distributed and annularly arranged on the outer circumferential circle of the central axis of the installation cavity 103, and the installation position of the first wire passing hole 105 avoids the installation rod 107; each first wire passing hole 105 corresponds to at least one wire passing channel g coaxially arranged on the first insulating member 2 and the conductive contact ring 3 and the second wire passing hole 203. The first insulating member 2 and the contact ring 3 are alternately coaxially sleeved on the installation rod 107, and are limited at the top by the second insulating member 4. The first insulating member 2 and the second insulating member 4 electrically isolate the contact ring 3, and electrically isolate the contact ring 3 from the installation member a.

[0060] Further, as Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 9 shown in the figure, the conductive contact ring 3 is designed as a circular ring, the periphery is an annular contact surface 301, two first positioning holes 304 are also provided on the upper end surface of the conductive contact ring 3, and are located outside the second installation hole 302 in the middle of the conductive contact ring 3. The second wire passing groove 303 provided on the inner wall of the second installation hole 302 adopts a semi-circular arc structure, and the second anti-rotation key groove 305 adopts a square brick structure. Two positioning holes 304 are also provided on the conductive contact ring 3. Further, the outer diameters of multiple groups of conductive contact rings 3, first insulating members 2 and second insulating members 4 are the same as the outer diameter of the circumferential contact surface 1010 of the installation member a. When the second wire passing groove 303 of the conductive contact ring 3 needs to be electrically connected to the wire 10, it can be used as a welding groove, and when only passing through the wire 10, it is used as a wire passing groove. The semi-circular arc structure of the conductive contact ring 3 and the semi-circular arc structure of the second wire passing hole 203 of the first insulating member 2 cooperate to form a regular cylindrical through groove.

[0061] As Figure 1 , Figure 2 shown in the figure, the connector 5 includes a support member that can be installed in the installation seat. An insulator that can be embedded in the installation seat is also provided on the support member, and multiple contact members are passed through the support member. The contact part is electrically connected to the contact member 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 adopts 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 use environment liquid pressure of the product. When the temperature is less than 200 °C and the environment liquid pressure is less than 172 Mpa, a pressure-bearing connector formed by vulcanizing rubber, contact members, and support rings is preferably used, or a connector 5 formed by injection molding a peek-type injection molded part, a support ring, and contact members is preferably used; when the temperature is greater than 200 °C and the environment liquid pressure is greater than 172 Mpa, a connector 5 formed by sintering ceramics, glass, a metal shell, and contact members is preferably used.

[0062] However, not limited thereto, in other embodiments, the number of the first insulating member 2, the conductive contact ring 3, and the wire 10 can be adjusted according to actual usage requirements. For example, if 4 conductive contact rings 3 are used, one wire 10 is welded to each of the 4 second wire grooves 303 of the 4 conductive contact rings 3, and the wire 10 can enter the installation cavity 103 of the installation member a along the wire passing channel g, the second wire passing hole 203, and the first wire passing hole 105. As Figures 3 to 4 , Figure 9 shown, the adjacent first wire passing holes 105 are distributed at an angle of 90°, but not limited to the 90° angle; the first anti-rotation convex key 106 on the mounting rod 107 has a symmetrical structure, and the first anti-rotation convex key 106 forms an angle of 45° with the first wire passing hole 105 to prevent the first anti-rotation convex key 106 from affecting the first wire passing hole 105.

[0063] As Figure 1 , Figure 2 , Figure 10 shown, the top end face of the mounting rod 107 is provided with a fixing hole 108 for locking and fixing with the fixing bolt 8; the circumferential contact surface 1010 of the mounting member a is connected by a conical surface with the large diameter of the mounting member a, and the outer sealing mounting section of the mounting member a is provided with a sealing groove 102 for sealing with the installation cavity 12 of the device. At the same time, two glue injection holes 104 are provided at different positions on the circumferential contact surface 1010 of the mounting member a, and a positioning pin hole 109 is provided on the step surface between the large diameter section of the mounting member a and the outer sealing mounting section of the mounting member a. Specific Embodiment 3

[0065] Based on Specific Embodiment 1, as Figures 1 to 13As shown, the connector 5 adopts an injection-molded connector 51, and the injection-molded connector 51 includes: a first support ring 512, a plurality of first contact members 513 inserted through the first support ring 512, and an injection-molded body 511 provided on one side of the first support ring 512 and at least partially wrapping the first contact members 513; and a first sealing ring 514 is further provided on the injection-molded body 511 for sealing connection with the installation cavity 103. Specifically, the injection-molded connector 51 includes: a plurality of injection-molded bodies 511, a first support ring 512, first contact members 513, and a first sealing ring 514. First, the first contact members 513 and the first support ring 512 are placed into an injection mold, and the plurality of first contact members 513, i.e., the pins, are respectively installed at the centers of the injection holes of the first support ring 512. The upper and lower molds of the injection mold position the two ends of the first contact members 513 to restrict the axial and radial movement of the first contact members 513 within the injection holes of the first support ring 512, ensuring the fixed positions of the first contact members 513 and the support ring, and forming an injection-molded skeleton. Secondly, peek particles are injected into the injection-molded skeleton under injection temperature and pressure and held under high temperature and pressure for a period of time to form an injection-molded assembly. Finally, the injection-molded alloy is machined mechanically to form an injection-molded pressure-bearing connector, which is axially provided with one or more sealing grooves for assembling an O-ring to seal with the installation part a. The two ends of the first contact member 513 of the injection-molded connector 51 are respectively a first wiring terminal b and a second wiring terminal c. The first wiring terminal b is connected to the wire 10, and the second wiring terminal c is located at the first opening h. Specific Embodiment 4

[0067] Based on Specific Embodiment 1, as Figures 1 to 12 、 Figure 14As shown, the connector 5 uses a rubber connector 52. The rubber connector 52 includes a second support ring 522, on which a plurality of second contact members 523 are fixedly inserted. On one side of the second support ring 522, there is also rubber 521 that at least partially wraps the second contact members 523. Specifically, the rubber connector 52 includes a number of second contact members 523, a second support ring 522, and rubber 521. The second contact members 523 and the second support ring 522 are placed into a vulcanization mold, and a number of second contact members 523, i.e., the plug pins, are respectively installed at the centers of the vulcanization holes of the second support ring 522. The upper and lower molds of the vulcanization mold position the two ends of the second contact members 523 to limit the axial and radial movement of the second contact members 523 within the vulcanization holes of the second support ring 522, ensuring the fixed positions of the second contact members 523 and the second support ring 522, and forming a vulcanized skeleton. Secondly, the rubber 521 raw material is extruded into the vulcanized skeleton under set temperature and pressure, and is kept under high pressure for a period of time to form the rubber connector 52; wherein multiple sealing convex hulls 524 are provided on the outside of the rubber connector 52 for internal contact sealing with the mounting member a. The two ends of the second contact members 523 of the rubber connector 52 are respectively a first wiring terminal b and a second wiring terminal c. The first wiring terminal b is connected to the wire 10, and the second wiring terminal c is located at the first opening h. Specific Embodiment 5

[0069] Based on Specific Embodiment 1 or Specific Embodiment 2, as Figures 1 to 12 、 Figure 15 shown, the connector 5 uses a glass-sealed connector 53. The glass-sealed connector 53 includes a sintered component, and the sintered component includes a sintered structure assembled with a metal shell 531, a number of third contact members 534, a number of ceramic sleeves 532, and a number of glass sleeves 533. Specifically, the sintered component in the glass-sealed connector 53 is formed by placing the sintered component assembled with the metal shell 531, a number of third contact members 534, a number of ceramic sleeves 532, and a number of glass sleeves 533 into a sintering mold and sintering at high temperature, and then through existing preparation processes such as potting, descaling, and electroplating to form the glass-sealed pressure-bearing connector. One or more sealing groove structures are provided on the metal shell 531 for assembling the second sealing ring 7 and sealing with the mounting member a. The second sealing ring 7 uses an O-ring structure. A number of sintering holes are provided inside the metal shell 531, and limiting steps are provided in the sintering holes. The ceramic sleeves 532, glass sleeves 533, and ceramic sleeves 532 are successively inserted into the sintering holes, and then the third contact members 534, i.e., the plug pins, are inserted into the middle holes of the arranged ceramic sleeves 532, glass sleeves 533, and ceramic sleeves 532 to form the sintered component. The two ends of the third contact members 534 of the glass-sealed connector 53 are respectively a first wiring terminal b and a second wiring terminal c. The first wiring terminal b is connected to the wire 10, and the second wiring terminal c is located at the first opening h. Specific Embodiment 6

[0071] On the basis of any one of the specific embodiments 1 to 5, Figures 1 to 12 As shown, the manufacturing method of the rotary connector assembly comprises the following steps:

[0072] The second wire groove 303 of the multiple sets of conductive contact rings 3 is welded to one end of the wire 10, and the other end of the wire 10 passes through the first wire hole 203 of the first insulating member 2, and enters the shell sealing cavity 103 through the first wire hole 105 of the mounting member a, and is welded to the contact member of the connector 5.

[0073] Specifically, one of the second wire passing grooves 303 of each of the four conductive contact rings 3 is welded with a wire 10, and is installed circumferentially and fixed in cooperation with the first wire passing holes 203 of the first insulating parts 2. The assembly sequence is to preferably assemble the conductive contact ring 3 and the first insulating part 2 close to one end of the connector 5, and the 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 wire 10 of the contact ring 3 passes through the second wire passing groove 303 of the assembled conductive contact ring 3 and 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 the mounting part a and the first insulating part 2 are connected by the first insulating part 2. Sleeve on the mounting rod 107, and limit the position by the first anti-rotation key groove 206 on the first insulating member 2 and the first anti-rotation convex key 106 on the mounting rod 107; sleeve the contact member on the protrusion d of the first insulating member 2 and abut against one side of the main body 201; the second anti-rotation convex key 205 outside the protrusion d is docked and matched with the first mounting hole 302 of the main body 201; in this cycle, multiple conductive contact members 3 and multiple groups of first insulating members 2 are installed on the mounting rod 107 of the mounting member a at intervals. Several conductive contact members 3 and several groups of first insulating members 2 are alternately sleeved on the mounting rod 107 of the mounting member a. After installing several groups of contact rings 3 and first insulating members 2, the second insulating member 4 is installed in the mounting member a. The contact member and the first insulating member 2 are locked and fixed on the mounting rod 107 by the fixing bolt 8 and the fixing hole 108 at the end of the mounting member a. Thread glue is applied to the locking thread of the fixing bolt 8 to achieve fixation between the fixing bolt 8 and the mounting member a, wherein the fixing bolt 8 is sunk into the second insulating member 4 or the end face of the fixing bolt 8 is flush with the end face of the second insulating member 4 .

[0074] The wire 10 passes through the first wire passing hole 105 of the mounting member a and enters the mounting cavity 103, and is introduced to the tail end of the mounting member a. The four groups of wires 10 are respectively trimmed, stripped, and tinned and welded to one end of the contact member, i.e., the pin, of the connector 5, and the solder joints are protected by heat shrinkable tubes; the welded connector 5 is assembled with the second sealing ring 7, i.e., the O-ring, and is inserted into the interior of the mounting member a from the tail of the mounting member a; the support disk 6 is inserted into the outside of the mounting member a, and thread sealant is applied to the assembly thread between the support disk 6 and the mounting member a. The end face of the support disk 6 contacts the step of the inner hole of the mounting member a, and the large-diameter end face of the support disk 6 is flush with or higher than the tail end face of the mounting member a. The connector 5 is located in the middle hole of the support disk 6, and the welding end exposes the end face of the support disk 6.

[0075] Then, the connector 5 is pushed into the housing sealing cavity 103 of the mounting member a, and the support disk 6 mounted at the end of the mounting member a is locked. The sealing cavity 103 of the mounting member a is potted with the sealing body 9 through the potting hole 104 provided on the mounting member a.

[0076] Epoxy resin or rubber or polyurethane is injected into the housing sealing cavity 103 of the mounting member a from the potting hole 104 of the mounting member a until it is full. The pressure-bearing end face of the connector 5 contacts the supporting ring face of the support disk 6, and the filling material shall not overflow the surface of the mounting member a, and the filling material is cured; then, the end faces of the mounting member a and the support disk 6 are processed to ensure that the end face of the support disk 6 is flush with the end face of the mounting member a. The second sealing ring 7, i.e., the O-ring, is installed in the sealing groove 102 of the mounting member a, the positioning pin 11 is installed on the installation step surface, and the product is installed in the installation cavity 12 of the device.

[0077] Working principle:

[0078] As Figures 1 to 12As shown in the figure, a rotary connector assembly and a manufacturing method thereof. An electrical connector for the contact members of a plurality of coaxially assembled conductive contact rings 3 and a connector 5 is realized by soldering wires. The wire 10 passes through a second wire groove 303 and a first wire hole 203 between the contact ring 3 and the first insulating member 2. The conductive contact ring 3 and the first insulating member 2 are coaxially mounted on the mounting rod 107 of the mounting member a. Two first insulating members 2 clamp and fix the conductive contact ring 3. The anti-rotation function is realized by the cooperation of the convex key and the groove of the first anti-rotation key groove 206 and the first anti-rotation convex key 106 between the conductive contact ring 3 and the first insulating member 2. The anti-rotation of the first insulating member 2 and the mounting member a is realized by the cooperation of the first anti-rotation key groove 206 of the first insulating member 2 and the first anti-rotation convex key 106 of the mounting member a. The second positioning hole 403 of the second insulating member 4 and the first positioning hole 304 of the conductive contact ring 3 are concentric holes, and a positioning pin 11 is installed inside to realize the anti-rotation between the two. Further, when the product rotates, the conductive contact ring 3 and the first insulating member 2 are fixed to the mounting member a. At the same time, the connector 5 installed in the mounting cavity 103 is supported by the support disk 6. The connector 5 is in contact with the bearing step hole 601 of the support disk 6. At the same time, a sealing body is injected into the mounting cavity 103 of the mounting member a through the potting hole 104 of the mounting member a to realize the sealed filling of the mounting cavity 103 of the mounting member a, avoid the direct pressure on the connector 5, play a buffering role, and play a role in protecting the solder joints, ensuring the contact stability between the conductive contact ring 3 and the connector 5, and improving the electrical stability and structural stability of the product.

[0079] Since the present invention is located inside the logging equipment, when the logging equipment rotates or turns, it can ensure the rotary contact between the coaxial rotary connector and the docking end. The coaxial rotary connector has high wear resistance and structural strength. The coaxial rotary connector can transmit two groups of signals or multiple groups of signals, reducing the requirements for the radial installation space.

[0080] The present invention realizes the function of pressure-bearing seal by means of internal hole seal between the installation cavity 103 of the installation part a of the pressure-bearing connection and the coaxial rotary connector through assembly, which reduces the difficulty of overall injection molding or glass-sealing sintering or rubber vulcanization of the product and greatly reduces the production cost. The sealing body 9 is filled in the installation cavity 103, and the sealing body 9 is made of epoxy resin, rubber, polyurethane, etc., which can effectively fill the cavity and prevent the installation cavity 103 from deforming under high temperature and high hydraulic pressure environments; it provides primary sealing for the connector 5 and reduces the hydraulic pressure borne by the second sealing ring 7 on the pressure-bearing connector; it plays a role in fixing the wire 10, and avoids problems such as loosening of the solder joints of the coaxial rotary connector 5 under vibration and impact environments. At the same time, the outer diameter of the first insulating part 2 is greater than or equal to the outer diameter of the conductive contact ring 3, which can effectively avoid the possibility of rigid contact between the contact ring 3 and the mating product and ensure the safety characteristics during the plugging and unplugging process of the product. The present invention can select different connectors 5 according to the specific working conditions of the product. As the application depth and working temperature of the product increase, a rubber-vulcanized molded pressure-bearing connector, an injection-molded pressure-bearing connector, and a ceramic-glass-ceramic sintered pressure-bearing connector are selected in sequence. The cooperative design of the connector 5, the installation part a, and the support disc 6 effectively ensures that when the coaxial rotary connector is under pressure, the liquid pressure can be effectively transmitted to the support disc 6 and then to the step of the installation hole through the support disc 6, reducing the risk of deformation of the installation part and the connector 5.

[0081] Based on the inspiration of the ideal embodiments of the present invention, through the above description, relevant personnel can make various changes and modifications completely within the scope without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A rotary connector assembly, characterized in that, it includes: a mounting member (a), the mounting member (a) includes a mounting shell (1) and a mounting rod (107) connected to each other, the interior of the mounting shell (1) is hollow to form a mounting cavity (103), and a first wire passing hole (105) communicating with the mounting cavity (103) is provided on the mounting shell (1); a connector (5), arranged in the mounting cavity (103); a first insulating member (2), sleeved on the mounting rod (107), the first insulating member (2) includes a main body portion (201) and a protruding portion (d) connected to each other, and a second wire passing hole (203) is provided on the main body portion (201); a conductive contact ring (3), including a first mounting hole (302), the conductive contact ring (3) is sleeved on the mounting rod (107) through the first mounting hole (302); and a wire (10); wherein, the first insulating member (2) is located between the conductive contact ring (3) and the mounting shell (1), a first wire groove (e) is provided on the outer wall of the protruding portion (d), and the first wire groove (e) communicates with the second wire passing hole (203); a part of the inner wall of the first mounting hole (302) is recessed to form a second wire groove (303); the protruding portion (d) is located in the first mounting hole (302), and the first wire groove (e) and the second wire groove (303) enclose a wire passing channel (g); one end of the wire (10) is fixed in the second wire groove (303) and electrically connected to the conductive contact ring (3), and the other end passes through the wire passing channel (g), the second wire passing hole (203), and the first wire passing hole (105) and is electrically connected to the connector (5); a potting hole (104) communicating with the mounting cavity (103) is further provided on the mounting shell (1), 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 provided on the connector (5), and the contact between the first wiring terminal and the wire (10) is located in the sealing body (9).

2. The rotary connector assembly according to claim 1, characterized in that, the outer peripheral area of the main body portion (201) is larger than the outer peripheral area of the protruding portion (d), the conductive contact ring (3) is sleeved on the protruding portion (d) and abuts against the main body portion (201), and in the axial direction of the protruding portion (d), the conductive contact ring (3) does not exceed the end of the protruding portion (d) away from the main body portion (201).

3. The rotary connector assembly according to claim 1, characterized in that, the first insulating member (2) is relatively fixed to the mounting rod (107), and the conductive contact ring (3) is relatively fixed to the mounting rod (107); the outer walls of the first insulating member (2) and the conductive contact ring (3) are both on the circumferential wall surface of the same cylinder.

4. The rotary connector assembly according to claim 1, characterized in that, The wire passing channel (g), the second wire passing hole (203), and the first wire passing hole (105) all extend along the same straight line; 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; The wire passing channel (g), the second wire passing hole (203), and the first wire passing hole (105) are all cylindrical holes with the same cross-sectional size; 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 rotary connector assembly according to claim 1, characterized in that, a first anti-rotation convex key (106) extending along its axial direction is provided on the outer wall of the mounting rod (107), a mounting hole (204) is provided through the first insulating member (2) along its axial direction, the first insulating member (2) is sleeved on the mounting rod (107) through the mounting hole (204), a first anti-rotation key groove (206) extending radially outward along the first insulating member (2) is provided on the inner wall of the mounting hole (204), and the first anti-rotation convex key (106) extends into the first anti-rotation key groove (206) to achieve circumferential relative fixation between the mounting rod (107) and the first insulating member (2); a second anti-rotation convex key (205) extending along its axial direction is provided on the outer wall of the protruding portion (d), a second anti-rotation key groove (305) extending radially outward along the conductive contact ring (3) is provided 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 achieve circumferential relative fixation between the first insulating member (2) and the conductive contact ring (3); The rotary connector assembly further includes a second insulating member (4) and a fixing bolt (8), and the second insulating member (4) is fixed to the end of the mounting rod (107) away from the mounting shell (1) through the fixing bolt (8) to axially fix the conductive contact ring (3) and the first insulating member (2) between the second insulating member (4) and the mounting shell (1).

6. The rotary connector assembly according to claim 1, characterized in that, The mounting shell (1) and the mounting rod (107) are an integrally formed integral structure; The body portion (201) and the protruding portion (d) are an integrally formed integral structure; The protruding portion (d) extends outward along the axial direction of the body portion (201) from the outer wall of the body portion (201); The cross-sectional area of the protruding portion (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, The rotary connector assembly includes at least two first insulating members (2), at least two conductive contact rings (3), at least two first wire passing holes (105), and at least two wires (10); the first insulating members (2) are arranged at intervals from the conductive contact rings (3), and one of the first insulating members (2) is located 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 member (2).

8. The rotary connector assembly according to claim 7, wherein, the wire (10) includes a conductive core and an insulating layer, the insulating layer wraps the outer periphery of the conductive core, and both ends of the conductive core extend out of the insulating layer; one end of each wire (10) is electrically connected to one of the conductive contact rings (3), and the other end passes through a wire passing channel (g), a second wire passing hole (203), and a first wire passing hole (105) to be electrically connected to the connector (5), and this wire (10) is electrically isolated from other conductive contact rings (3); 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 set of parallel axes, and each wire (10) 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; all the first insulating members (2) are sequentially connected end to end.

9. The rotary connector assembly according to claim 8, wherein, the mounting shell (1) includes a first end portion and a second end portion arranged oppositely, the first end portion is connected to the mounting rod (107), in the radial direction of the mounting rod (107), the length of the first end portion is greater than the diameter of the mounting rod (107), the second end portion is provided with a first opening (h) communicating with the mounting cavity (103), the first end portion is provided 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 communicate with the mounting cavity (103); the connector (5) includes a first wiring terminal (b) and a second wiring terminal (c) arranged oppositely, the first wiring terminal (b) faces the second end portion, and the second wiring terminal (c) is located at the first opening (h); the connector (5) is a pressure-bearing connector, and the pressure-bearing connector includes one of an injection-molded pressure-bearing connector (51), a rubber pressure-bearing connector (52), and a glass-sealed pressure-bearing connector (53).

10. A manufacturing method of a rotary connector assembly according to any one of claims 1 to 9, wherein, it includes the following steps: welding one end of the wire (10) in the second wire groove (303) of the conductive contact ring (3); Put the first insulating member (2) and the conductive contact ring (3) on the mounting rod (107), and assemble the first insulating member (2) and the conductive contact ring (3) so that the protruding portion (d) extends into the first mounting hole (302), and the first wire groove (e) of the protruding portion (d) and the second wire groove (303) of the conductive contact ring (3) enclose a wire passing channel (g); Fix the first insulating member (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 connected in sequence; Pass the other end of the wire (10) through the wire passing channel (g), the second wire passing hole (203), and the first wire passing hole (105) in sequence to enter the installation cavity (103), and extend out from the installation cavity (103) to be electrically connected to the first wiring terminal (b) of the connector (5); Seal and install the connector (5) into the installation cavity (103); Inject liquid insulating material into the installation cavity (103), and the liquid insulating material fills the space between the outer wall of the connector (5) and the inner wall of the installation cavity (103), and forms a sealing body (9) after the liquid insulating material solidifies.

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