An electrical connector and ceramic sub for simultaneously delivering large current and pressure fluid

Abstract

An electrical connector for simultaneously delivering large current and pressure fluid, comprising a coupling socket (10) and a coupling plug (20), the coupling socket (10) comprising a socket housing (11), a coupling conductive cylinder (12) and a first conductor (13), the socket housing (11) comprising a socket fluid cylinder (14) and a socket manifold cylinder (15); the coupling plug (20) comprising a plug housing (21) and a second conductor (23), the plug housing (21) comprising a plug fluid cylinder (24) and a plug manifold cylinder (25); the socket fluid cylinder (14) and the plug fluid cylinder (24) are mated along a first axis (O1-O1) to establish a coupled fluid connection, while the plug manifold cylinder (25) is inserted into the coupling conductive cylinder (12) of the socket manifold cylinder (15) along a second axis (O2-O2) to establish a coupled electrical connection; the coupled electrical connection is immersed in fluid bypassing the coupled fluid connection. The electrical connector, the coupling or decoupling of the conductors does not affect the fluid delivery.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electrical connectors, and in particular to an electrical connector for simultaneously transmitting large current and high pressure fluid and a ceramic connecting sub. BACKGROUND

[0002] An electrical connector, including one or more sets of matched plug and socket, is an electrical connection intermediary for providing high power energy from a power network to a load. The high power energy is usually current transmission of 50-400A. The requirements for the high power electrical connector are usually: ① reliability, ensuring the reliable ability of conducting current for a long time; ② large current conducting ability, large current conducting ability after connection, large power current transmission; such as current transmission of 50-400A; ③ thermal performance, the electrical insulator does not deform thermally even if the Joul heat is generated in the contact part, and the contact temperature rise cannot be too high. ④ environmental resistance, resistant to high temperature environment. In order to meet the above characteristics, an electrical connector for transmitting both current and liquid cooling oil is produced.

[0003] A plug 2 is inserted into a socket 3, the plug 2 comprises a plug barrel and a conductor 4 coaxially fixed in the plug barrel by an insulating disc 26, the conductor 4 is designed as a valve body 7 at the end, the valve body 7 seals a coaxial hole of the plug end 2.1; the socket 3 comprises a socket barrel and a conductor 5 coaxially fixed in the socket barrel, a valve ring 8 is arranged between the front end of the conductor 5.1 and the socket barrel. The coaxial plug-in coupling device, the plug end 2.1 pushes the valve ring 8 to be inserted into the socket barrel 3.2, the valve ring 8 drives the contact sleeve 11 fixed in the valve ring to be sleeved on the front conductor 5.1 and the middle conductor 5.2 to form a conductive connection I. At the same time, the front conductor 5.1 retreats into the contact sleeve 12 fixed in the plug barrel to form a conductive connection II. The two conductive connections are completed at the same time to realize the conductive connection of the conductors 4 and 5. At the same time, the conductors 4 and 5 and the barrel form a high-pressure fluid channel. The coaxial plug-in coupling device has the following problems: ① liquid leakage, when the plug end 2.1 of the plug 2 pushes the valve ring 8 into the socket barrel 3.2, the plug end 2.1 replaces the valve ring 8 to form an end plug of the sealed port 3.1, so the plug end 2.1 must have strict guidance, and the valve ring 8 must be coaxially inserted into the port 3.1 to ensure that the two replace the liquid seal in the transition stage, and any deviation from the axis will cause liquid leakage; ② excessive insertion force, in order to ensure the liquid seal, the plug end 2.1, the valve ring 8 and the gap between the front end of the socket barrel and the piston hole are matched, and the flange surface 8.4 of the valve ring 8 and the inner surface of the socket barrel are matched, which will cause excessive insertion force; ③ when withdrawing, electric arc will be generated between the contact sleeve 11, 12 and the conductor; ④ the end surface of the conductor 4, 5 is exposed, even if it is electrically connected with the outer pipe wall, it is also a great safety hazard for high-voltage leakage risk.

[0004] Therefore, there is an urgent need in the art for an electrical connector for simultaneously conveying electric current and pressure fluid, the conductive connection and the pressure fluid are weakly associated, and the connection or disconnection of the conductor does not affect the fluid conveying, which is a difficult problem to be solved for developing high-performance high-power electrical connectors. SUMMARY

[0005] In view of the defects in the prior art, the purpose of the present application is to provide an electrical connector for simultaneously conveying large electric current and pressure fluid and a high-pressure-resistant ceramic connector, the conductive connection and the pressure fluid are weakly associated, and the connection or disconnection of the conductor does not affect the fluid conveying, so as to solve the technical problem of developing high-performance high-power electrical connectors.

[0006] The purpose of the present application is achieved by an electrical connector for simultaneously conveying large electric current and pressure fluid, comprising

[0007] The coupling socket comprises a socket shell, a coupling conductive cylinder and a first conductor, the socket shell comprises a socket liquid cylinder extending along a first axis and a socket manifold extending along a second axis; the coupling conductive cylinder is coaxially arranged in the socket liquid cylinder and the socket manifold and is liquidly closed at the end of the socket manifold; the first conductor is coaxially arranged in the socket liquid cylinder and is inserted into the coupling conductive cylinder at one end;

[0008] The coupling plug comprises a plug shell and a second conductor, the plug shell comprises a plug liquid cylinder extending along a first axis and a plug manifold extending along a second axis; the end of the plug manifold is liquidly closed, and the second conductor is coaxially arranged in the plug liquid cylinder and the plug manifold and extends out of the plug manifold at the end;

[0009] The socket liquid cylinder and the plug liquid cylinder are matched along the first axis to establish a coupling liquid connection, and the plug manifold is inserted into the coupling conductive cylinder of the socket manifold along the second axis to establish a coupling electric connection;

[0010] The second axis and the first axis form an acute angle.

[0011] Further, the end of the socket manifold is provided with an electric coupling socket, the end of the plug manifold is provided with an insertion guide, the second conductor extends out of the locking insertion guide to form a coupling conductor segment, and the coupling conductor segment is inserted into the coupling conductive cylinder when the insertion guide is matched in the electric coupling socket.

[0012] Further, the socket liquid cylinder has a first flow channel extending from a socket electric liquid inlet end to a socket liquid outlet end, the socket manifold comprises a socket liquid manifold path connected to the first flow channel, and the socket liquid manifold path is filled with liquid from the first flow channel; the plug liquid cylinder has a second flow channel from a plug electric liquid outlet end to a plug liquid inlet end, the plug manifold comprises a plug liquid manifold path connected to the second flow channel, and the plug liquid manifold path is filled with liquid from the second flow channel.

[0013] Further, the coupling conductive cylinder comprises a first coupling segment extending along the first axis, a second coupling segment extending along the second axis, and a bending segment integrally connected between the first coupling segment and the second coupling segment, the first coupling segment and the second coupling segment are respectively provided with at least two annular spring contact fingers, the first conductor is inserted into the first coupling segment, the second conductor is inserted into the second coupling segment to form a coupling electric connection, and the first conductor and the second conductor are respectively in contact with the inner rings of the at least two spring contact fingers.

[0014] Further, the coupling socket and the coupling plug are respectively provided with a liquid seal valve, the liquid seal valve is arranged in the socket manifold or the plug manifold; the liquid seal valve comprises a spherical valve body integrally connected to the middle part of the socket liquid cylinder, the spherical valve body is provided with a supporting valve seat and a rotating valve seat along a valve axis O3-O3, the valve axis O3-O3 is perpendicular to the first axis O1-O1, the rotating valve seat is provided with a rotating rod which is rotatably and adjustably arranged, a pin shaft is fixedly arranged in the supporting valve seat, a half-spherical valve core is rotatably arranged at the lower part of the pin shaft, and the upper part of the half-spherical valve core is fixedly connected to the rotating rod.

[0015] Further, the liquid seal valve is coaxially arranged with the socket manifold; the socket manifold spherical valve body is integrally connected to the socket liquid cylinder along the valve axis O3-O3, the end of the socket manifold is liquid-tightly provided with an electrical coupling socket, the spherical valve body is provided with a plurality of communication holes communicating with the socket liquid manifold, the support valve seat is provided with a stepped through hole, the second coupling section of the coupling conductive cylinder is inserted into the stepped through hole for positioning, and the lower part of the semi-spherical valve core is rotationally arranged on the second coupling section.

[0016] Further, the included angle α between the second axis and the manifold axis of the first axis ranges from 30° to 90°.

[0017] Further, the second conductor is telescopically arranged in the plug manifold through coupling actuation, the coupling actuation includes a pair of drive rollers arranged at both ends of the buffer cavity and a shrink pin, the plug manifold includes a buffer cylinder section, an elastic gasket is arranged in the buffer cylinder section, and the buffer cavity is formed between the elastic gaskets; the pair of drive rollers are pressed on both sides of the second conductor and are fixedly arranged at the inlet of the buffer cavity, the shrink pin is fixedly arranged at the outlet of the buffer cavity (63), and the second conductor extends to the coupling socket in a concave circular arc after passing around the shrink pin by at least 180 degrees.

[0018] Further, the second conductor is telescopically arranged in the plug manifold through coupling actuation, the coupling actuation includes a pair of drive rollers arranged at both ends of the buffer cavity and a shrink pin, the plug manifold includes a buffer cylinder section, an elastic gasket is arranged in the buffer cylinder section, and the buffer cavity is formed between the elastic gaskets; the pair of drive rollers are pressed on both sides of the second conductor and are fixedly arranged at the inlet of the buffer cavity, the shrink pin is fixedly arranged at the outlet of the buffer cavity (63), and the second conductor extends to the coupling socket in a concave circular arc after passing around the shrink pin by at least 180 degrees.

[0019] A ceramic connector used by the electric connector includes a coupling conductive cylinder and an insulating heat-conducting structure, the insulating heat-conducting structure includes a ceramic upper cylinder and a ceramic lower cylinder which are formed into a clamping body at an included angle through an end bevel, the coupling conductive cylinder is coaxially arranged in the clamping body with a fiber layer wrapped outside, and a heat-conducting resin layer is integrally injection molded outside the clamping body.

[0020] An electric connector and a ceramic connector for simultaneously conveying large current and pressure fluid, the coupling liquid connection is arranged in the socket liquid cylinder and the plug liquid cylinder, the coupling electric connection is arranged in the socket manifold and the plug manifold extending along the second axis, so that the coupling electric connection is immersed in the fluid manifold, realizing strong coupling of power transmission and heat conduction, and the coupling between the coupling liquid connection and the coupling electric connection is loose coupling, facilitating power on and off. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a main sectional view of embodiment 1 of the electric connector for simultaneously conveying large current and pressure fluid of the present application;

[0022] Figure 2 It is a main sectional view of the coupling socket 10 of embodiment 1 of the electric connector for simultaneously conveying large current and pressure fluid of the present application;

[0023] Figure 3Main sectional view of coupling plug 20 of embodiment 1 of the present application, an electrical connector for simultaneously delivering large current and pressure fluid;

[0024] Figure 4 Main sectional view of ceramic connector of embodiment 1 of the present application, an electrical connector for simultaneously delivering large current and pressure fluid.

[0025] Figure 5 Schematic diagram of open valve state of actuating mechanism of embodiment 1 of the present application, an electrical connector for simultaneously delivering large current and pressure fluid.

[0026] Figure 6 Schematic diagram of close valve state of actuating mechanism of embodiment 1 of the present application, an electrical connector for simultaneously delivering large current and pressure fluid.

[0027] Figure 7 Main sectional view of embodiment 2 of the present application, an electrical connector for simultaneously delivering large current and pressure fluid.

[0028] Figure 8 Main sectional view of embodiment 3 of the present application, an electrical connector for simultaneously delivering large current and pressure fluid.

[0029] Reference numerals in the above figures:

[0030] 10 coupling socket, 11 socket barrel, 12 coupling conductive barrel, 13 first conductor, 14 socket liquid barrel, 14.1 socket electro-hydraulic inlet end, 14.2 socket liquid outlet end, 15 socket manifold, 16 socket liquid manifold, 17 electrical coupling socket, 18 first flow channel, 19 spring contact finger

[0031] 20 coupling plug, 21 plug shell, 23 second conductor, 24 plug liquid barrel, 24.1 plug electro-hydraulic outlet end, 24.2 plug liquid inlet end, 25 plug manifold, 26 plug liquid manifold, 27 insertion guide, 28 second flow channel, 29 coupling conductor segment

[0032] 30 insulating and heat-conducting structure, 31 ceramic upper barrel, 32 ceramic lower barrel, 33 buckling body, 34 heat-conducting resin layer, 35 fiber layer, 36 insulating spacer

[0033] 40 liquid seal valve, 41 spherical valve body, 42 supporting valve seat, 43 rotating valve seat, 44 rotating rod, 45 hemispherical valve core, 46 sealing ring lip, 47 pressing step, 48 rotating pin

[0034] 50 actuating mechanism, 51 inner bushing, 52 sliding sleeve, 53 hydraulic cavity, 54 return spring

[0035] 60 coupling actuation, 61 driving roller pair, 62 shrinkage stop pin, 63 buffer cavity, 64 elastic gasket, 65 buffer barrel segment

[0036] O1-O1 first axis, O2-O2 second axis, α angle between the axes DETAILED DESCRIPTION

[0037] The embodiments of the present application will be described in detail below with reference to the accompanying drawings, but are not intended to limit the scope of the present application.

[0038] Embodiment 1

[0039] An electrical connector for simultaneously conveying large current and pressure fluid, comprising

[0040] The coupling socket 10 comprises a socket shell 11, a coupling conductive cylinder 12 and a first conductor 13, the socket shell 11 comprises a socket liquid cylinder 14 extending along a first axis O1-O1 and a socket manifold 15 extending along a second axis O2-O2; the socket liquid cylinder 14 has a first flow channel 18 extending from a socket liquid inlet end 14.1 to a socket liquid outlet end 14.2, and the socket manifold 15 comprises a socket liquid manifold 16 communicating with the first flow channel 18; the coupling conductive cylinder 12 is coaxially arranged in the socket liquid cylinder 14 and the socket manifold 15 and forms an electrical coupling socket 17 and a liquid sealing end at the end of the socket manifold 15; the first conductor 13 is coaxially arranged in the socket liquid cylinder 14 and has a starting end at the electrical liquid inlet end and a terminal end inserted into the coupling conductive cylinder 12 to form an electrical coupling;

[0041] The coupling plug 20 comprises a plug shell 21 and a second conductor 23, the plug shell 21 comprises a plug liquid cylinder 24 extending along a first axis O1-O1 and a plug manifold 25 extending along a second axis O2-O2; the plug liquid cylinder 24 and the plug manifold 25 are integrally connected, the plug liquid cylinder 24 has a second flow channel 28 extending from a plug liquid outlet end 24.1 to a plug liquid inlet end 24.2, and the plug manifold 25 comprises a plug liquid manifold 26 communicating with the second flow channel 28; the plug manifold 25 has a plug insertion guide 27 at the terminal end, and the second conductor 23 is coaxially arranged in the plug liquid cylinder 24 and the plug manifold 25 and has a starting end at the plug liquid outlet end 24.1 and a terminal end extending out of the plug insertion guide 27 of the plug manifold 25 to form a coupling conductor segment 29 to be inserted into the coupling conductive cylinder 12;

[0042] When the coupling plug 20 is coupled to the coupling socket 10, the plug manifold 25 is inserted into the socket manifold 15, the coupling conductor segment 29 is inserted into the tail end of the coupling conductive cylinder 12 to form an electrical coupling outlet, and the first conductor 13, the coupling conductive cylinder 12 and the second conductor 23 form a coupling electrical connection; at the same time, the plug liquid cylinder 24 is coupled to the socket liquid cylinder 14, the first flow channel 18 communicates with the second flow channel 28 to form a coupling liquid communication, and the coupling electrical connection is insulated and immersed in the coupling liquid communication.

[0043] The angle α between the second axis O2-O2 and the first axis O1-O1 is in the range of 30°≤α≤90°, and the angle α is preferably selected from 45° and 90°.

[0044] The coupling conductive cylinder 12 comprises a first coupling section 12.1 extending along the first axis O1-O1 and a second coupling section 12.2 extending along the second axis O2-O2. The first coupling section 12.1 is integrally connected to the second coupling section 12.2 through a bending section 12.3, and the included angle between the first coupling section 12.1 and the second coupling section 12.2 is equal to the shaft included angle α. In order to increase the conductive contact area of the electrical connection, the first coupling section 12.1 and the second coupling section 12.2 are respectively spaced apart by at least two spring contacts 19, the first conductor 13 is inserted into the first coupling section 12.1, the second conductor 23 is inserted into the second coupling section 12.2, and the first conductor and the second conductor are respectively in contact with the inner ring of the at least two spring contacts 19. In addition to using spring contacts 19, the connection between the first conductor 13 and the coupling conductive cylinder 12 can also be welded or threaded.

[0045] For the coupling conductive cylinder 12 in which the first conductor and the second conductor are simultaneously electrically connected, an insulating heat-conducting structure 30 is provided outside the coupling conductive cylinder 12. The insulating heat-conducting structure 30 comprises a ceramic upper cylinder 31 and a ceramic lower cylinder 32 forming a clasp body 33 at an included angle α through an end bevel, the coupling conductive cylinder 12 is coaxially provided in the clasp body 33 by winding a fiber layer 35 outside, and the clasp body 33 is integrally injection molded with a heat-conducting resin layer 34 outside. The outer diameter of the insulating heat-conducting structure 30 is smaller than the inner diameter of the socket liquid cylinder 14 and the plug liquid cylinder 24, i.e. the diameter of the first flow channel 18 and the second flow channel 28. The fiber layer 35 is formed by winding a fiber fabric, and the fiber fabric is a glass fiber fabric, a basalt fiber fabric, etc. The coupling conductive cylinder 12 is made of copper. The fiber layer 35 loses part of the performance of conducting heat outward, and the copper metal has a larger expansion coefficient than the ceramic, which provides expansion space for copper thermal expansion and ensures the durability of the coupling conductive cylinder 12 and the layers and bodies of the ceramic.

[0046] The first conductor 13 is coaxially provided in the socket liquid cylinder 14 through a first insulating disc 13.1, and the second conductor 23 is inserted into the plug liquid cylinder 24 and the plug manifold 25 through a plurality of second insulating discs 23.1 arranged at intervals; the first insulating disc 13.1 and the second insulating disc 23.1 comprise a through cylinder body and a current equalizing hole.

[0047] The socket liquid cylinder 14 is provided with a liquid seal valve 40, which comprises a spherical valve body 41 integrally connected to the middle part of the socket liquid cylinder 14, and is provided with a supporting valve seat 42 and a rotating valve seat 43 along a valve axis O3-O3, which is perpendicular to the first axis O1-O1. The rotating valve seat 43 is rotatably and adjustably provided with a rotating rod 44 in a liquid-tight manner, the supporting valve seat 42 is fixedly provided with a rotating pin 48, the lower part of a half-spherical valve core 45 is rotatably arranged on the rotating pin 48, and the upper part of the half-spherical valve core 45 is fixedly connected to the rotating rod 44. A sealing ring lip 46 is fixedly arranged at the intersection of the first flow channel 18 and the spherical valve body 41, and abuts against the half-spherical valve core 45. The half-spherical valve core 42 comprises an axial cavity 44 and an outer convex spherical part 45, and the outer side of the outer convex spherical part 45 is provided with an annular abutting step 47. The inner side of the outer convex spherical part 45 is provided with the axial cavity 44.

[0048] The half-spherical valve core 42 can be rotatably adjusted around the second axis O2-O2, and is switched between an open state and a closed state. When the rotating rod 44 drives the half-spherical valve core 42 to rotate 90°, the outer convex spherical part 45 faces the first flow channel 18, the sealing ring lip 46 abuts against the abutting step 47 of the half-spherical valve core 42, the first flow channel 18 is closed, and the liquid seal valve 40 is in a closed state. When the rotating rod 44 drives the half-spherical valve core 42 to rotate 90° in the opposite direction, the axial cavity 44 is coaxially communicated with the first flow channel 18, and the liquid seal valve 40 is in an open state.

[0049] The abutting of the sealing ring lip 46 against the abutting step 47 of the half-spherical valve core 42 is realized by an actuating mechanism 50. The actuating mechanism 50 comprises an inner sleeve 51 and a sliding sleeve 52 slidingly arranged in the inner sleeve 51, a hydraulic chamber 53 is formed between the socket cylinder body 11 or the plug cylinder body 21 and the inner sleeve 51, and a return spring 54 is arranged between the flange at the tail end of the sliding sleeve 52 and the inner sleeve 51. The pressure of the fluid F filled into the hydraulic chamber 53 drives the sliding sleeve 52 to move to the right, and the sealing ring lip 46 is deformed towards the center of the half-spherical valve core 42, thereby abutting against the abutting step 47 to seal the spherical surface and form a closed valve state. The hydraulic action enables the sliding sleeve 52 to continuously press the sealing ring lip 46 to the right, thereby the sealing performance of the sealing ring lip 46 and the half-spherical valve core 42 is very high. When the fluid is discharged from the hydraulic chamber 53, the pressure acting on the sliding sleeve 52 is reduced through the discharge of the fluid, the sealing ring lip 46 returns to the original state, and the disappeared gap δ reappears. In this way, the sealing of the half-spherical valve core 42 is released, and the rotating rod 44 can drive the half-spherical valve core 42 to rotate to an open valve state.

[0050] The socket manifold 15 is arranged in the socket liquid cylinder 14 in a spaced manner with the liquid seal valve 40, and is arranged close to one end of the socket liquid inlet end 14.1. The liquid seal valve structure 40 is arranged close to the socket liquid outlet end 14.2. The plug manifold 25 is arranged in the plug liquid cylinder 24 in a spaced manner with the liquid seal valve structure 40, and is arranged close to one end of the plug liquid outlet end 24.1. The liquid seal valve structure 40 is arranged close to the plug liquid inlet end 24.2.

[0051] During the insertion operation, when the plug liquid cylinder 24 is coaxially butted against the socket liquid cylinder 14 along the first axis O1-O1, the plug manifold 25 is inserted into the socket manifold 15 along the second axis O2-O2, the electric coupling and the liquid coupling are simultaneously established, and the heat generated between the coupling electric cylinder 12 and the first conductor 13 and the second conductor 23 is taken away by the coupling liquid. The heat source is at the position of the coupling electric cylinder 12, so the length of the socket manifold 15 is much smaller than the length of the plug manifold 25, and the length of the socket manifold 15 is such that the coupling electric cylinder 12 is mostly located in the first flow channel 18 of the socket liquid cylinder 14.

[0052] The coupling electric cylinder 12 and the insulating heat-conducting structure 30 form a ceramic connector, a ceramic connector that is resistant to high pressure on the inside and conducts heat on the outside, which can be used for the electric connection of the first conductor and the second conductor that transport large currents, and which comprises the coupling electric cylinder 12 and the insulating heat-conducting structure 30, the insulating heat-conducting structure 30 comprising a ceramic upper cylinder 31 and a ceramic lower cylinder 32 that form a clamping body 33 at an included angle α of the manifold axes through an end bevel, the coupling electric cylinder 12 being coaxially arranged in the clamping body 33 with a fiber layer 35 wrapped around the outside of the coupling electric cylinder 12, and the clamping body 33 being integrally injection molded with a heat-conducting resin layer 34 on the outside. The coupling electric cylinder 12 is provided with at least two annular spring contacts 19 at both ends, and the first conductor and the second conductor are respectively in contact with the inner rings of the at least two spring contacts 19.

[0053] The spring contacts are helical springs.

[0054] The coupling electric cylinder 12 is made of copper. The included angle α of the manifold axes is 0°≤α≤180°, and when α=0° or 180°, the coupling electric cylinder 12 is a U-shaped or Z-shaped cylinder that is parallel to the first axis and spaced from the second axis. When α is an acute angle or an obtuse angle, the coupling electric cylinder 12 is a bent cylinder that is obliquely intersected by the first axis and the second axis.

[0055] Embodiment 2

[0056] In order to make the structure compact, the coupling socket, the liquid seal valve, and the socket manifold are combined, and other structures are the same as in Embodiment 1.

[0057] An electric connector that simultaneously transports large currents and pressure fluids, the socket manifold 15 and the liquid seal valve 40 are coaxially arranged in the socket liquid cylinder 14, the socket manifold 15 and the spherical valve body 41 are integrally connected to the socket liquid cylinder 14 along the valve axis O3-O3, the outer end of the socket manifold 15 is provided with an electric coupling socket 17, and the spherical valve body 41 is provided with a plurality of communication holes that communicate with the socket liquid manifold 16. The support valve seat 42 is provided with a stepped through hole, the second coupling section 12.2 of the coupling electric cylinder 12 is inserted into the stepped through hole for positioning, and the lower part of the half-spherical valve core 45 is rotatably arranged in the second coupling section 12.2.

[0058] The half-spherical valve core 42 is in Figure 5In the shown open state, the axial cavity 44 is located at one side of the coupling conductive cylinder 12, the hemispherical valve core 42 is in the Figure 6 In the shown closed state, the axial cavity 44 is transversely facing and downstream of the bending section 12.3, the outer convex spherical part 45 is just blocking the first flow channel 18. Taking the valve axis O3-O3 as the Z axis, the first axis O1-O1 as the X axis, and the horizontal axis perpendicular to the first axis O1-O1 and the valve axis O3-O3 as the Y axis, in the XY plane, the hemispherical valve core 42 can only rotate between -90°-0° or 0°-90°.

[0059] Embodiment 3

[0060] To improve the operational convenience of easy insertion and easy removal, a coupling actuator 60 is arranged in the plug manifold to realize the coupling of fluid communication and the coupling or decoupling of electrical communication, and other structures are the same as those in Embodiment 1 or 2.

[0061] The electrical connector for simultaneously conveying large current and pressure fluid further comprises a coupling actuator 60 for driving the second conductor 23 to extend out of the electrical coupling socket 17 along the second axis O2-O2 and into the second coupling section 12.2 to form an electrical coupling connection, or driving the second conductor 23 to retract into the electrical coupling socket 17 along the second axis O2-O2 to break the electrical coupling connection. The socket manifold 25 comprises a buffer cylinder section 65, and elastic pads 64 are arranged in the buffer cylinder section 65, and buffer cavities 63 are formed between the elastic pads 64. The coupling actuator 60 comprises a driving roller pair 61 and a retraction preventing pin 62. One of the driving roller pair 61 is drivingly connected to a servo motor and is pressed against both sides of the second conductor 23 and is fixedly arranged at the inlet of the buffer cylinder section 65. The retraction preventing pin 62 is fixedly arranged at the outlet of the buffer cylinder section 65, and the second conductor 23 extends to the coupling socket 17 in a concave circular arc after passing around the retraction preventing pin 62 by at least 180 degrees. The driving roller pair 61 rotates a fixed number of turns, thereby driving the second conductor 23 to feed a certain amount of the second conductor 23 into the buffer cavities 63 along the second axis O2-O2, and the second conductor 23 extrudes the elastic pads 64 to form a concave circular arc with a smaller radius of curvature and thereby shrink in the buffer cavities 63.

[0062] The electrical connector for simultaneously conveying large current and pressure fluid and the ceramic connecting sub solve the technical problem of weak correlation between the electrical connection and the pressure fluid, and the coupling or decoupling of the conductor does not affect the fluid conveying,

[0063] (1) The socket coupling electrical connection and the plug conductor are respectively immersed in the bypass manifold of the main flow channel of the pressure fluid, and the electrical coupling and the fluid passage are not on the same axis.

[0064] The socket liquid cylinder 14 and the plug liquid cylinder 24 connected along the first axis O1-O1 form a coupled liquid connection of the first flow channel 18 and the second flow channel 28, but the coupled electric connection is formed along the second axis O2-O2. The socket liquid cylinder 14 is integrally connected with the socket manifold 15 extending along the second axis O2-O2, the plug liquid cylinder 24 is integrally connected with the plug manifold 25 extending along the second axis, the plug guide 27 is matched with the electric coupling socket 17 so that the second conductor 23 is inserted into the lower end of the coupled electric cylinder 12 along the second axis O2-O2, and the first conductor 13 is fixedly connected to the upper end of the coupled electric cylinder 12, thereby establishing the coupled electric connection along the second axis, which is immersed in the coupled liquid connection.

[0065] Through the design of not being in the same axis, the coupled electric connection is only immersed in the socket liquid manifold 16 and the plug liquid manifold 26, and the fluid fills the socket liquid manifold 16 and the plug liquid manifold 26 in a pressure manner, respectively, but they are not in fluid communication at the plug connection. In this way, the current and the water flow are separated, and the electricity is turned on and the heat is dissipated.

[0066] (2) The second conductor is retractable in the plug guide 27, so that the electricity can be frequently turned on and off without breaking the liquid connection.

[0067] In the coupled socket 10, the first conductor 13 is fixedly connected to one end of the coupled electric cylinder 12, and the other end of the coupled electric cylinder 12 is retractable in the plug guide 27. When the plug liquid cylinder 24 is connected to the liquid cylinder 14 in the coupled plug 20 inserted into the coupled socket 10, the plug guide 27 is always matched in the electric coupling socket 17 without breaking the coupled liquid connection. When the second conductor 23 extends out of the coupled conductor section 29 of the plug guide 27, the coupled electric connection is established, and when the second conductor 23 is retracted into the plug guide 27, the coupled electric connection is disconnected, and at this time, the coupled liquid connection is still effective. In this way, when the electricity needs to be frequently turned on and off, the liquid connection of the socket liquid cylinder and the plug liquid cylinder does not need to be frequently turned on and off.

[0068] An electric connector and a ceramic connector for simultaneously conveying a large current and a pressure fluid, the coupled liquid connection is arranged in the socket liquid cylinder and the plug liquid cylinder, the coupled electric connection is arranged in the socket manifold and the plug manifold extending along the second axis, so that the coupled electric connection is immersed in the fluid manifold, realizing strong coupling of electricity and heat dissipation, the coupled liquid connection and the coupled electric connection are weakly coupled, facilitating the turning on and off of electricity and the input of fluid to take away heat.

Claims

1. An electrical connector for simultaneously conveying large electrical currents and pressure fluids, characterized in that, Comprising The coupling socket (10) includes a socket cylinder (11), a coupling conductive cylinder (12) and a first conductor (13), the socket shell 11 includes a socket liquid cylinder (14) extending along a first axis (O1-O1) and a socket manifold (15) extending along a second axis (O2-O2); the coupling conductive cylinder (12) is coaxially arranged in the socket liquid cylinder (14) and the socket manifold (15) and is liquidly closed at the end of the socket manifold 15; the first conductor (13) is coaxially arranged in the socket liquid cylinder (14) and is inserted into the coupling conductive cylinder (12) at one end; The coupling plug (20) includes a plug shell (21) and a second conductor (23), the plug shell (21) includes a plug liquid cylinder (24) extending along a first axis (O1-O1) and a plug manifold (25) extending along a second axis (O2-O2); the plug manifold (25) is liquidly closed at the end, and the second conductor (23) is coaxially arranged in the plug liquid cylinder (24) and the plug manifold (25) and protrudes out of the plug manifold (25) at the end; The socket liquid cylinder (14) and the plug liquid cylinder (24) are matched along the first axis (O1-O1) to establish a coupling liquid connection, and the plug manifold (25) is inserted into the coupling conductive cylinder (12) of the socket manifold (15) along the second axis (O2-O2) to establish a coupling electrical connection; The coupling electrical connection is immersed in bypass fluid of the coupling liquid connection; The socket liquid cylinder (14) has a first flow channel (18) extending from a socket electrical liquid inlet end (14.1) to a socket liquid outlet end (14.2), the socket manifold (15) includes a socket liquid manifold (16) communicating with the first flow channel (18), and the socket liquid manifold (16) is filled with liquid by the first flow channel (18); the plug liquid cylinder (24) has a second flow channel (28) extending from a plug electrical liquid outlet end (24.1) to a plug liquid inlet end (24.2), the plug manifold (25) includes a plug liquid manifold (26) communicating with the second flow channel (28), and the plug liquid manifold (26) is filled with liquid by the second flow channel (28); the socket liquid manifold (16) and the plug liquid manifold (26) constitute the bypass fluid; The coupling conductive cylinder (12) includes a first coupling section (12.1) extending along a first axis (O1-O1), a second coupling section (12.2) extending along a second axis (O2-O2), and a bending section (12.3) integrally connected between the two, the first coupling section (12.1) and the second coupling section (12.2) are respectively provided with at least two annular spring contact fingers (19), the first conductor (13) is inserted into the first coupling section (12.1) and the second conductor (23) is inserted into the second coupling section (12.2) to form a coupling electrical connection, and the first conductor and the second conductor respectively contact the inner ring of the at least two spring contact fingers (19).

2. The electrical connector for simultaneous delivery of high current and pressure fluid of claim 1, wherein, The socket manifold (15) is provided with an electrical coupling socket (17) at the end, the plug manifold (25) is provided with an insertion guide (27) at the end, the second conductor (23) extends out of the locking insertion guide (27) to form a coupling conductor segment (29), and the coupling conductor segment (29) is inserted into the coupling socket (12) when the insertion guide (27) is matched in the electrical coupling socket (17).

3. The electrical connector for simultaneous delivery of high current and pressure fluid of any of claims 1-2, wherein, The coupling socket (10) and the coupling plug (20) are respectively provided with a liquid seal valve (40), which is arranged in space with the socket manifold (15) or the plug manifold (25); the liquid seal valve (40) comprises a spherical valve body (41) integrally connected to the middle part of the socket liquid cylinder (14), the spherical valve body (41) is provided with a supporting valve seat (42) and a rotating valve seat (43) along the valve axis O3-O3, the valve axis O3-O3 is perpendicular to the first axis (O1-O1), the rotating valve seat (43) is rotatably adjustably provided with a rotating rod (44) in liquid seal, the supporting valve seat (42) is fixedly provided with a pin shaft (48) inside, a hemispherical valve core (45) is rotatably arranged at the lower part of the pin shaft (48), and the upper part of the hemispherical valve core (45) is fixedly connected with the rotating rod (44).

4. The electrical connector for simultaneously delivering high current and pressure fluid of claim 3, wherein, The liquid seal valve (40) is coaxially arranged with the socket manifold (15); the socket manifold (15) and the spherical valve body (41) are integrally connected to the socket liquid cylinder (14) along the valve axis O3-O3, the end of the socket manifold (15) is provided with an electrical coupling socket (17) in liquid seal, the spherical valve body (41) is provided with a plurality of communication holes communicating with the socket liquid manifold (16), the supporting valve seat (42) is provided with a stepped through hole, the second coupling segment 12.2 of the coupling conductive cylinder 12 is inserted into the stepped through hole for positioning, the second coupling segment 12.2 of the coupling conductive cylinder (12) is inserted into the stepped through hole for positioning, and the lower part of the hemispherical valve core (45) is rotatably arranged at the second coupling segment (12.2).

5. An electrical connector for simultaneously conveying large current and pressure fluid as claimed in claim 4, wherein, The second axis (O2-O2) and the first axis (O1-O1) form an included angle (α) in the range of 30º≤α≤90º.

6. An electrical connector for simultaneously conveying large current and pressure fluid as claimed in claim 4, wherein, The second conductor is telescopically arranged in the plug manifold (25) through a coupling actuator (60), the coupling actuator (60) comprises a driving roller pair (61) and a shrinkage stop pin (62) arranged at both ends of a buffer cavity (63), the plug manifold (25) comprises a buffer cylinder segment (65), the buffer cylinder segment (65) is provided with elastic gaskets (64) inside, and the buffer cavity (63) is formed between the elastic gaskets (64); the driving roller pair 61 is pressed on both sides of the second conductor (23) and is fixedly arranged at the inlet of the buffer cavity (63), the shrinkage stop pin (62) is fixedly arranged at the outlet of the buffer cavity (63), and the second conductor (23) extends to the coupling socket (17) in a concave circular arc of at least 180 degrees after passing around the shrinkage stop pin (62).

7. The electrical connector for simultaneously delivering high current and pressure fluid of claim 6, wherein, The second conductor (23) is bent in a concave circular arc with a smaller curvature radius in the buffer cavity (63) instead of a concave circular arc with a larger curvature radius, so that a certain length of the second conductor is telescoped therein, thereby breaking the electrical coupling connection.

8. A ceramic connector for use with the electrical connector of any one of claims 1-7, wherein, It includes coupling conductive cylinder (12) and insulating heat conducting structure (30), the insulating heat conducting structure (30) includes ceramic upper cylinder (31), ceramic lower cylinder (32) is formed by end bevel skew angle (a) of the bifurcation axle clamping body (33), coupling conductive cylinder (12) outer winding fiber layer (35) is coaxially arranged in clamping body (33), and clamping body (33) is integrally injection molded with heat conducting resin layer (34) outside.

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