Contact couple with hot plug function and connector assembly

Abstract

The invention relates to a connector, in particular to a contact couple with a hot plug function and a connector assembly, the connecting assembly comprises a connector, an adaptive connector and a connector, the adaptive connector is provided with corresponding contact pins and jacks, the front ends of the contact pins are provided with plug-in parts, the front ends of the jacks are provided with plug-in holes, and the plug-in parts are connected with the plug-in holes. A pin heat-resistant body is arranged at the front end of the plugging part, a pin conductor is arranged at the rear end of the plugging part, a jack heat-resistant body is arranged at the front end of the wall body corresponding to the plugging hole, a jack conductor is arranged at the rear end of the wall body corresponding to the plugging hole, and arc striking R angles are arranged at the front ends of the pin heat-resistant body and the jack heat-resistant body; according to the invention, the hot plug function of the connector assembly can be realized, the roughness of an ablated part can be prevented from being increased, the abrasion of a contact part of a pin and a jack is accelerated, and the service life of a product is prevented from being shortened.

Description

Technical Field

[0001] The present invention relates to a connector, and more particularly to a contact pair and a connector assembly with hot pluggable function. Background Art

[0002] Hot pluggability has always been a requirement for communication power supply systems, and is also desired by every industrial automation system and military product. The definition of hot pluggability is to insert or remove a circuit board from a working system without shutting down the power supply of the system. The surge current, instantaneous voltage, electrostatic discharge, huge temperature rise, etc. generated by hot plugging will ablate the contact pair of the connector. Currently, the existing contact pairs of connectors cannot withstand the ablation of hot plugging, and repeated hot plugging will cause product failure. Most of the existing technologies are to implement the hot pluggability of the connector by supporting complex circuit designs, which occupy a large space and have a high cost. Summary of the Invention

[0003] To solve the above technical problems that hot pluggability easily causes product failure or high cost caused by implementing hot pluggability, the present invention provides a contact pair and a connector assembly with hot pluggable function.

[0004] The object of the present invention is achieved by the following technical solutions. A contact pair with hot pluggable function according to the present invention includes a plug pin and a jack whose front ends can be adapted for plugging. The front end of the plug pin is provided with a plugging portion for inserting into the jack, the front end of the jack is provided with a plugging hole for sleeving on the plugging portion of the plug pin. The front end of the plugging portion of the plug pin is provided with a plug pin heat-resistant body, and the rear end is provided with a plug pin conductor. The front end of the corresponding wall of the plugging hole is provided with a jack heat-resistant body, and the rear end is provided with a jack conductor. The front ends of the plug pin heat-resistant body and the jack heat-resistant body are both provided with an arc-leading R angle; during the hot plugging process, the arc generated at the moment when the plug pin and the jack contact or separate acts on the arc-leading R angle. After the plug pin and the jack are plugged in place, the current is transmitted through the plug pin conductor and the jack conductor.

[0005] Further, the plug pin heat-resistant body and the jack heat-resistant body are made of tungsten alloy, and the plug pin conductor and the jack conductor are made of copper alloy.

[0006] Further, the plug pin heat-resistant body and the plug pin conductor, and the jack heat-resistant body and the jack conductor are both butt-fixed by friction welding.

[0007] Further, at least two axial slots are distributed in the circumferential direction on the corresponding wall of the plugging hole, and the corresponding wall of the plugging hole is divided into at least two circumferentially distributed cantilevers.

[0008] Further, the outer wall of the corresponding wall of the plugging hole is provided with a circumferential groove, and an elastic member is nested in the circumferential groove.

[0009] A connector component with hot pluggable function includes a connector and its mating connector. One of the connector and the mating connector is provided with the above-mentioned pins, and the other is provided with the above-mentioned jacks. The front end of the pin is provided with a plugging portion for inserting into the jack, the front end of the jack is provided with a plugging hole for sleeving on the plugging portion of the pin. The front end of the pin plugging portion is provided with a pin heat-resistant body, and the rear end is provided with a pin conductive body. The front end of the corresponding wall body of the plugging hole is provided with a jack heat-resistant body, and the rear end is provided with a jack conductive body. The front ends of the pin heat-resistant body and the jack heat-resistant body are both provided with arc-leading R corners. During hot plugging, the arc generated at the moment when the pin contacts or separates from the jack acts on the arc-leading R corners. After the pin and the jack are plugged in place, current is transmitted through the pin conductive body and the jack conductive body.

[0010] Further, the pin heat-resistant body and the jack heat-resistant body are made of tungsten alloy, and the pin conductive body and the jack conductive body are made of copper alloy.

[0011] Further, the connection between the pin heat-resistant body and the pin conductive body, and the connection between the jack heat-resistant body and the jack conductive body are both fixed by friction welding.

[0012] Further, the plugging end of the connector is provided with a plugging cavity, and the radial cross-sectional shape of the plugging cavity is in a shape of "J", and the outer contour shape of the plugging end of the mating connector matches the plugging cavity.

[0013] Further, the connector is rotatably provided with a screw rod. One end of the screw rod is a locking portion, and a double-curved groove is provided on the outer peripheral surface of the locking portion. The other end of the screw rod is connected to a handle. The mating connector is provided with a locking sleeve that is locked and matched with the locking portion. Locking protrusions that are slidably matched with the double-curved groove during plugging are oppositely provided on the inner wall of the locking sleeve near the opening.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: When performing hot plugging through the present invention, an arc is generated at the moment when the pin contacts or separates from the jack. Since the front ends of the pin and the jack are provided with corresponding pin heat-resistant body and jack heat-resistant body, and the rear ends are provided with pin conductive body and jack conductive body, the pin heat-resistant body and the jack heat-resistant body are made of materials with high temperature resistance and arc ablation resistance, and the pin conductive body and the jack conductive body are made of materials with excellent electrical conductivity. The arc between the pin and the jack only ablates the pin heat-resistant body and the jack heat-resistant body at the front ends of the pin and the jack. The pin and the jack continue to be plugged in until stable contact is achieved, and stable current transmission is realized by relying on the pin conductive body and the jack conductive body at the rear ends of the pin and the jack, or the pin and the jack continue to be separated until no arc is generated between the pin and the jack. Therefore, through the present invention, the hot pluggable function of the connector component can be realized, and it is possible to avoid an increase in the roughness of the ablation part and accelerated wear of the contact part of the pin and the jack, thereby avoiding a reduction in the product life.

[0015] The above description is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable, the following preferred embodiments are specifically given and described in detail in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. 6 is a perspective view of the first embodiment of a connector assembly with a hot plug function according to the present invention;

[0017] Figure 2 is Figure 1 a perspective view of the socket in FIG. 6;

[0018] Figure 3 is Figure 1 a perspective view of the plug in FIG. 6;

[0019] Figure 4 is Figure 2 a perspective view of the pin in FIG. 6;

[0020] Figure 5 is Figure 4 a side view of FIG. 6;

[0021] Figure 6 is Figure 3 a half-sectional view of the jack in FIG. 6;

[0022] Figure 7 is Figure 3 a side view of the spring sleeved on the jack in FIG. 6;

[0023] Figure 8 FIG. 12 is a schematic diagram when the pin and the jack are inserted into each other;

[0024] Figure 9 is Figure 8 a schematic diagram after the pin and the jack in FIG. 6 are inserted into each other.

[0025] REFERENCE NUMERALS

[0026] 1 - Socket,

[0027] 11 - Socket housing,

[0028] 12 - Pin,

[0029] 121 - Pin conductor,

[0030] 122 - Pin heat-resistant body,

[0031] 123 - Pin arc-drawing R corner,

[0032] 13 - Locking sleeve,

[0033] 131 - Locking protrusion,

[0034] 14 - Insertion cavity,

[0035] 2 - Plug,

[0036] 21 - Plug housing,

[0037] 22 - Jack,

[0038] 221 - Jack conductor,

[0039] 222 - Jack heat - resistant body,

[0040] 223 - Jack arc - starting R - corner,

[0041] 224 - Insertion hole,

[0042] 225 - Axial slot,

[0043] 226 - Cantilever,

[0044] 227 - Circumferential groove,

[0045] 228 - Annular protrusion,

[0046] 23 - Screw,

[0047] 24 - Spring,

[0048] 25 - Handle. Detailed implementation manners

[0049] To make the objectives, technical solutions and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some but not all of the embodiments of this application. Usually, the components of the embodiments of this application described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0050] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of this application claimed, but merely represents the selected embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts fall within the scope of protection of this application.

[0051] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0052] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0053] In addition, the terms "horizontal", "vertical", "overhanging", etc. do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0054] In the description of the present application, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0055] In the present application, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0056] The features and performance of a contact pair and a connector assembly suitable for a hot pluggable function of the present application will be further described in detail below in conjunction with embodiments.

[0057] An embodiment of a connector assembly with a hot pluggable function according to the present invention, such as Figures 1 to 9As shown below, hereinafter referred to as the connector assembly. The connector assembly includes a socket 1 and a plug 2. The socket 1 includes a socket housing 11 and pins 12 and a locking sleeve 13 disposed within the socket housing 11. The plug 2 includes a plug housing 21 and jacks 22 and a screw 23 disposed within the plug housing 21. The description is made with the end where the plug 2 is inserted into the socket 1 as the front end.

[0058] In this embodiment, the socket housing 11, the pins 12, and the locking sleeve 13 are fixed integrally by an injection molding insert process, and the plug housing 21 and the jacks 22 are fixed integrally by an injection molding insert process. The product made in this way has a simple structure and reliable fixing performance. In other embodiments, the socket 1 assembles and fixes the socket housing 11, the pins 12, and the locking sleeve 13 by a detachable assembly method, and the plug 2 assembles and fixes the plug housing 21 and the jacks 22 by a detachable assembly method.

[0059] The contact pair of the connector assembly of the present invention adopts an innovative two-body structure. Among them, the pin 12 includes a pin heat-resistant body 122 at the front end and a pin conductor 121 at the rear end, and the jack 22 includes a jack heat-resistant body 222 at the front end and a jack conductor 221 at the rear end; the pin heat-resistant body 122 and the jack heat-resistant body 222 are made of tungsten alloy with high temperature resistance and arc ablation resistance, and the pin conductor 121 and the jack conductor 221 are made of copper alloy with excellent electrical conductivity (but not arc ablation resistant). The two materials are butt-welded together by friction welding to make the corresponding pins 12 and jacks 22.

[0060] In this embodiment, one end of the pin heat-resistant body 122 and the pin conductor 121 are butt-connected. The other end of the pin conductor 121 is a wiring end. The other end of the pin heat-resistant body 122 is provided with a pin arc-leading R angle 123. The pin arc-leading R angle 123 is an outer arc angle, and the pin arc-leading R angle 123 is an arc-shaped area formed by an arc-shaped line sweeping around the axis of the pin 12. The insertion part of the pin 12 includes the front ends of the pin heat-resistant body 122 and the pin conductor 121. The insertion part of the pin 12 is inserted into the insertion hole 224 of the jack 22 to realize the insertion of the pin 12 and the jack 22.

[0061] The front end of the jack 22 is provided with a plugging hole 224, and the rear end is a wiring terminal. A plurality of axial slots 225 are circumferentially distributed on the wall of the plugging hole 224, dividing the wall of the plugging hole 224 into a plurality of circumferentially distributed cantilevers 226. The front ends of the respective cantilevers 226 located at the opening position of the plugging hole 224 form a heat-resistant body 222 of the jack, and the rear ends of the cantilevers 226 and the rear end of the jack 22 connected to the roots of the cantilevers 226 are a conductive body 221 of the jack. A jack arc-igniting R angle 223 is provided at the opening position of the plugging hole 224. The jack arc-igniting R angle 223 is located at the front end of the heat-resistant body 222 of the jack and is an inner arc angle, and the jack arc-igniting R angle 223 is an arc-shaped area formed by an arc-shaped line surrounding the axis of the jack 22 sweeping through.

[0062] At least two axial slots 225 are circumferentially distributed on the wall of the plugging hole 224. Correspondingly, the wall of the plugging hole 224 is divided into at least two cantilevers 226.

[0063] When the plug 2 is hot-plugged into and unplugged from the socket 1, there will be a gap between the plug pin 12 and the front end of the jack 22 at the moment when the plug pin 12 contacts or separates from the jack 22. As Figure 8 shown, there is air between the gaps. There is a voltage between the plug pin 12 and the jack 22. The voltage breaks down the air. At this time, the arc between the plug pin 12 and the jack 22 only ablates the plug pin 12 and the heat-resistant body 122 of the plug pin made of tungsten alloy at the front end of the jack 22 and the heat-resistant body 222 of the jack. The plug pin 12 and the jack 22 continue to be inserted until they are in stable contact, and the stable transmission of current is realized by relying on the conductive body 121 of the plug pin and the conductive body 221 of the jack made of copper alloy at the rear ends of the plug pin 12 and the jack 22, or the plug pin 12 and the jack 22 continue to be separated until no arc is generated between the plug pin 12 and the jack 22.

[0064] In order to reduce the usage amount of tungsten alloy, lower the cost, and concentrate the electric arc to avoid ablation of the pin conductors 121 of the pins 12 and the jack conductors 221 of the jacks 22, appropriate arc-igniting R angles are designed on the front ends of the pins 12 and the jacks 22 (i.e., the front ends of the pin heat-resistant bodies 122 and the jack heat-resistant bodies 222), namely the pin arc-igniting R angle 123 and the jack arc-igniting R angle 223. The size of the arc-igniting R angle is designed according to the hot plugging voltage and the closing condition of the jacks 22, so as to ensure that at the moment when the pins 12 and the jacks 22 are about to contact or about to separate, the voltage breaks down the air to generate an electric arc. The arc-igniting R angle contacts the electric arc first. After the electric arc is led to the arc-igniting R angle, the voltage difference is eliminated and the electric arc ends until the pins 12 and the jacks 22 are completely in contact or completely separated. That is, to ensure that at the moment when the pins 12 and the jacks 22 contact or separate, the electric arc only acts on the arc-igniting R angle, and the ablated part of the electric arc is only on the arc-igniting R angle. Since the arc-igniting R angle is made of tungsten alloy, it can withstand high temperature and ablation, avoiding the poor conductivity caused by the influence of high temperature and ablation on the pin conductors 121 and the jack conductors 221. The axial lengths of the pin heat-resistant bodies 122 and the jack heat-resistant bodies 222 only need to be greater than the lengths of the corresponding arc-igniting R angles, and the shorter the better, so that the length of the tungsten alloy material is as short as possible. In this way, it can not only ensure the smooth insertion and conduction between the pins 12 and the jacks 22, making the contact part material after the pins 12 and the jacks 22 are inserted only copper alloy, and ensuring the current-carrying capacity of the connector, but also ensure that the ablated part of the electric arc is at the arc-igniting R angle part.

[0065] Although the pin heat-resistant bodies 122 and the jack heat-resistant bodies 222 made of tungsten alloy have poor conductivity, they are resistant to high temperature and ablation. An electric arc is generated at the moment of insertion and contact, and the electric arc only contacts the pin heat-resistant bodies 122 and the jack heat-resistant bodies 222, eliminating the voltage difference between the pins 12 and the jacks 22. After the pin conductors 121 and the jack conductors 221 are in contact, the current is transmitted through the pin conductors 121 and the jack conductors 221 to ensure good conductivity. Therefore, through this structure, the hot plugging function of the connector can be realized, and this structure can avoid the increase in the roughness of the ablated part and the accelerated wear of the copper alloy contact parts of the pins and jacks through tungsten alloy, thereby avoiding the reduction of the product life.

[0066] The outer wall of the front end of the jack 22 is provided with a circumferential groove 227. The circumferential groove 227 is segmented and arranged on the outer wall of the front end of the cantilever 226. A spring 24 is nested in the circumferential groove 227 to increase the contraction force of the split insertion hole 224 and ensure reliable contact with the pin 12. When the pin 12 is inserted into the jack 22, the pin 12 expands the cantilever 226 and the spring 24 outward. After the pin 12 is inserted into the jack 22, under the action of the elastic restoring force of the spring 24, the cantilever 226 is closely attached to the outer wall of the pin 12, increasing the clamping force of the jack 22 on the pin 12, achieving reliable contact, and improving the conductivity at the insertion and mating position of the pin 12 and the jack 22. In other embodiments, the spring 24 can be replaced with other elastic components.

[0067] In this embodiment, two circumferential protrusions 228 are axially distributed on the outer wall of the front end of the jack 22, and a circumferential groove 227 is formed between the two circumferential protrusions 228.

[0068] The radial (direction perpendicular to the insertion direction) cross-sectional shape of the insertion cavity 14 at the front end of the socket 1 is in the shape of a capital "J", as Figure 2 shown. Two pins 12 are distributed on both sides of the insertion cavity 14. The insertion part of the pin 12 is located in the insertion cavity 14, and the opening of the locking sleeve 13 is located at the middle position of the bottom of the insertion cavity 14. The radial cross-sectional shape of the outer contour of the insertion part at the front end of the plug 2 matches that of the insertion cavity 14. When the insertion orientation is incorrect, the insertion part of the plug 2 cannot be inserted into the insertion cavity 14 of the socket 1, thereby protecting the pins 12 and the jacks 22 and avoiding mechanical damage.

[0069] A screw 23 is rotatably arranged on the plug 2. One end of the screw 23 is a locking part, and the locking part extends out of the insertion end face of the plug. A hyperbolic groove is arranged on the outer circumferential surface of the locking part of the screw 23, and the two openings of the hyperbolic groove on the end face of the screw 23 are arranged opposite to each other; the other end of the screw 23 penetrates through to the other end of the plug 2 and is connected to the handle 25. Rotating the handle 25 can make the screw 23 rotate. Two locking protrusions 131 are oppositely arranged on the inner wall of the locking sleeve 13 near the opening. When the plug 2 and the socket 1 are inserted into each other, the locking part of the screw 23 is aligned with the locking sleeve 13 and pushes the plug 2 and the socket 1 to be inserted into each other. At this time, the handle 25 can be rotated to align the opening of the hyperbolic groove on the end face of the screw 23 with the locking protrusion 131 and make the locking protrusion 131 insert into the corresponding curved groove. Continuing to rotate the handle 25 makes the two locking protrusions 131 enter the hyperbolic groove. At this time, the insertion part of the plug 2 is driven into the insertion cavity 14 of the socket 1. By rotating the handle 25, the plug 2 and the socket 1 are inserted together, enabling the plug 2 and the socket 1 to be inserted together evenly and quickly.

[0070] Embodiment 2 of a connector assembly with hot pluggable function according to the present invention. On the basis of Embodiment 1, the pin heat-resistant body 122 is a tungsten alloy sheath sleeved and fixed at the front end of the insertion part of the pin conductor 121, that is, the inside of the front end of the insertion part of the pin conductor 121 is copper alloy; the jack heat-resistant body 222 is a tungsten alloy sheath sleeved at the front end of the cantilever 226, that is, the inside of the front end of the cantilever is copper alloy, or the inner wall of the front end of the insertion hole 224 is provided as a tungsten alloy wall body.

[0071] Embodiment 3 of a connector assembly with hot pluggable function according to the present invention. On the basis of Embodiment 1, jacks 22 can be provided on the socket 1, the jacks 22 are arranged in the socket housing 11, pins 12 are provided on the plug 2, an insertion cavity is provided at the front end of the plug 2, and the insertion part of the pin 12 is located in the insertion cavity.

[0072] Embodiment 4 of a connector assembly with hot pluggable function according to the present invention. On the basis of Embodiment 1, the locking sleeve 13 can be provided on the plug 2. At this time, the opening end face of the locking sleeve 13 can be flush with the insertion end face of the plug 2, or embedded in the plug housing 21; the screw rod 23 and the handle 25 are arranged in the socket housing 11, the locking part of the screw rod 23 is located in the insertion cavity 14 of the socket 1, and the other end of the screw rod 23 passes through the socket housing 11 and is connected to the handle 25.

[0073] Embodiment of a contact pair with hot pluggable function according to the present invention includes the pins 12 and jacks 22 in Embodiment 1, 2, 3, and 4 of the above-mentioned connector assembly with hot pluggable function, which will not be elaborated here.

[0074] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A contact couple with hot-swap function, comprising a pin (12) and a socket (22) at the front end capable of being adapted for plugging, characterized in that: The front end of the plug pin (12) is provided with a plug-in portion for inserting into the plug hole (22); the front end of the plug hole (22) is provided with a plug hole (224) for inserting into the plug-in portion of the plug pin (12); the front end of the plug-in portion of the plug pin (12) is provided with a plug pin heat-resistant body (122) and the rear end is provided with a plug pin conductor (121); the front end of the wall body corresponding to the plug hole (224) is provided with a plug hole heat-resistant body (222) and the rear end is provided with a plug hole conductor (221); ), the front ends of the pin heat-resistant body (122) and the socket heat-resistant body (222) are both provided with arc-starting R angles (pin arc-starting R angles 123 and socket arc-starting R angles 223); during the hot plugging process, the arc generated at the moment when the pin (12) and the socket (22) are in contact or separated acts on the arc-starting R angle, and after the pin (12) and the socket (22) are plugged in place, current is transmitted through the pin conductor (121) and the socket conductor (221).

2. A contact couple with hot-swap function according to claim 1, characterized in that: The pin heat-resistant body (122) and the socket heat-resistant body (222) are made of tungsten alloy, and the pin conductor (121) and the socket conductor (221) are made of copper alloy.

3. A contact couple with hot-swap function according to claim 2, characterized in that: The pin heat-resistant body (122) and the pin conductor (121), as well as the socket heat-resistant body (222) and the socket conductor (221) are both fixed by friction welding.

4. The contact couple with hot-swap function according to claim 1, characterized in that: The wall corresponding to the plug hole (224) has at least two axial slots (225) distributed in the circumferential direction, dividing the wall corresponding to the plug hole (224) into at least two circumferentially distributed cantilevers (226).

5. A contact couple with hot-swap function according to claim 4, characterized in that: An annular groove (227) is provided on the outer wall of the wall body corresponding to the plug-in hole (224), and an elastic member (spring 24) is nested in the annular groove (227).

6. A connector assembly with hot-swap function, comprising a connector (plug 2 or socket 1) and an adapter connector (socket 1 or plug 2), characterized in that: One of the connector and the adapter connector is provided with a plug pin (12), and the other is provided with a socket (22); the front end of the plug pin (12) is provided with a plug portion for inserting into the socket (22); the front end of the socket (22) is provided with a plug hole (224) for inserting into the plug portion of the plug pin (12); the front end of the plug portion of the plug pin (12) is provided with a plug pin heat-resistant body (122), and the rear end is provided with a plug pin conductor (121); the front end of the wall body corresponding to the plug hole (224) is provided with a socket heat-resistant body ( 222), a socket conductor (221) is provided at the rear end, and an arc striking R angle (pin arc striking R angle 123, socket arc striking R angle 223) is provided at the front end of the pin heat-resistant body (122) and the socket heat-resistant body (222); during the hot plugging process, an arc generated at the moment when the pin (12) and the socket (22) are in contact or separated acts on the arc striking R angle, and after the pin (12) and the socket (22) are plugged in place, current is transmitted through the pin conductor (121) and the socket conductor (221).

7. A connector assembly with hot plug function according to claim 6, characterized in that: The pin heat-resistant body (122) and the socket heat-resistant body (222) are made of tungsten alloy, and the pin conductor (121) and the socket conductor (221) are made of copper alloy.

8. A connector assembly with hot plug function according to claim 7, characterized in that: The pin heat-resistant body (122) and the pin conductor (121), as well as the socket heat-resistant body (222) and the socket conductor (221) are both fixed by friction welding.

9. A connector assembly with hot plug function according to claim 6, characterized in that: The plug-in end of the connector is provided with a plug-in cavity (14), the radial cross-section of the plug-in cavity (14) is in the shape of an "X"; the outer contour of the plug-in end of the adapter connector matches the plug-in cavity (14).

10. The connector assembly with hot plug function according to claim 6, characterized in that: The connector is rotatably provided with a screw rod (23), one end of the screw rod (23) close to the connector plug-in end is a locking portion, a hyperbolic groove is provided on the outer circumferential surface of the locking portion (23), and the other end of the screw rod (23) is connected to a handle (25); the adapter connector is provided with a locking sleeve (13) which is locked with the locking portion, and a locking protrusion (131) which is slidably matched with the hyperbolic groove when plugged in is relatively provided on the inner wall of the locking sleeve (13) close to the opening.

Images