Pluggable electric connector

Abstract

The utility model relates to the field of electric connectors and discloses a plug-in type electric connector, which comprises a front-end connector and a rear-end connector, and an intermediate connecting structure is detachably connected between the front-end connector and the rear-end connector. The middle connecting structure comprises an inner sleeve part and an outer sleeve part. According to the plug-in type electric connector assembly, the middle connecting structure is arranged between the front-end connector and the rear-end connector, so that the manufacturing difficulty of the front-end connector and the rear-end connector is simplified, the front-end connector and the rear-end connector are connected or detached through the inner sleeve part, and meanwhile, the front-end connector and the rear-end connector are connected through the inner sleeve part. The inner sleeve part connecting the front-end connector and the rear-end connector is matched with the outer sleeve part, so that the electric connector assembly can be conveniently connected with an external object, the electric connector assembly can be installed on the object according to needs, and the manufacturing difficulty and the installation difficulty of the electric connector assembly are reduced to a certain extent.

Description

Technical Field

[0001] The utility model relates to the field of electrical connectors, and particularly relates to a pluggable electrical connector. Background Art

[0002] Electrical connectors are widely used in electronics, electrical appliances, and instruments. Their function is to serve as a connecting bridge at the interrupted part of a circuit or between independent non-connected circuits, taking on the task of current or signal transmission; or cooperating with electrical beam terminals to form a board-to-wire connection; or can be independently used for board-to-board connection. Electrical connectors are widely used in various fields, such as the field of motor vehicles like cars and electric vehicles, and also in various electronic equipment fields, etc. to connect various electrical components.

[0003] The traditional electrical connector realizes current connection by the cooperation of a front-end connector and a rear-end electrical connector. When the front-end connector and the rear-end electrical connector are connected, they are often in an insertion fit; usually, a protruding structure is set on the electrical connector, and a matching groove structure is set on the rear-end electrical connector to achieve plug-in connection. Some existing electrical connectors need to be installed on an external object for use. Among them, the rear-end connector also needs to be located inside the object. Therefore, how to facilitate the installation of the entire electrical connector on the external object while taking into account the connection between the front-end connector and the rear-end connector has become a difficult problem. Summary of the Utility Model

[0004] Aiming at the deficiencies of the above-mentioned prior art, the technical problem to be solved by the utility model is: to provide a pluggable electrical connector to solve the problem of how to ensure the connection between the front-end connector and the rear-end connector while also taking into account the connection and cooperation with the object.

[0005] To solve the above technical problem, a technical solution adopted by the utility model is: to provide a pluggable electrical connector including a front-end connector and a rear-end connector. A middle connection structure for connecting and conducting the front-end connector and the rear-end connector is detachably connected between the front-end connector and the rear-end connector, so as to facilitate the connection and disassembly between the front-end connector and the rear-end connector; the middle connection structure includes an inner sleeve part for connecting and conducting the front-end connector and the rear-end connector after being energized, and an outer sleeve part arranged on the inner sleeve part for connecting to an external object, so as to ensure the installation and disassembly between the front-end connector and the rear-end connector, and at the same time, facilitate the installation of the entire electrical connector assembly on the object through the outer sleeve part. The setting of the outer sleeve part does not affect the assembly between the front-end connector and the rear-end connector.

[0006] Further, the front connector includes a first plastic housing having a first assembly cavity therein and a front terminal assembly disposed in the first assembly cavity and having a first mating end. The first plastic housing has a long extension portion protruding toward the rear connector side along an insertion direction. The first mating end extends into the long extension portion, and one side of the intermediate connection structure is detachably sleeved on the long extension portion. The rear connector includes a second plastic housing having a second assembly cavity therein and a rear terminal assembly disposed in the second assembly cavity and having a second mating end. The second plastic housing has a short extension portion protruding toward the front connector side along the insertion direction. The other side of the intermediate connection structure is detachably connected to the short extension portion. The second mating end is inserted into and mated with the first mating end after passing through the short extension portion and the intermediate connection structure along the insertion direction.

[0007] Further, the inner sleeve portion includes an inner sleeve housing. A first insertion cavity penetrating toward the long extension portion along the insertion direction is formed in the inner sleeve housing. The long extension portion is inserted into the first insertion cavity. The short extension portion is detachably connected to the inner sleeve housing. The outer sleeve portion is detachably sleeved on the inner sleeve housing to simplify the assembly difficulty.

[0008] Further, the inner sleeve portion further includes an elastic locking portion disposed on an outer side surface of the long extension portion facing at least one inner sleeve surface of the first insertion cavity. An elastic deformation space is formed between the elastic locking portion and the outer side surface of the long extension portion. The elastic locking portion has a hook groove for locking the inner sleeve surface of the inner sleeve housing. A first hook portion capable of being clamped in the hook groove protrudes from the inner sleeve surface of the inner sleeve housing at a position corresponding to the hook groove, thereby improving the connection firmness between the long extension portion and the inner sleeve housing and facilitating the connection between the inner sleeve housing and the long extension portion.

[0009] Further, a first insertion opening communicating with the first assembly cavity and allowing the second mating end to pass through along the insertion direction is formed in a side surface of the long extension portion facing the short extension portion at a position corresponding to the first mating end along the insertion direction, thereby restricting the freedom degree of the second mating end in a direction outside the insertion direction to a certain extent. An elastic limiting portion protrudes from a side surface of the inner sleeve housing facing the short extension portion at a position directly opposite to the first insertion opening along the insertion direction. The elastic limiting portion has a second insertion opening coaxial with the first insertion opening and allowing the second mating end to pass through along the insertion direction. A clamping groove for clamping the elastic limiting portion therein is formed on a side of the short extension portion facing the long extension portion. The second mating end passes out of the second assembly cavity from the clamping groove. When the elastic limiting portion is clamped in the clamping groove, the second mating end passes through the second insertion opening and the first insertion opening in sequence to be inserted into and mated with the first mating end, thereby realizing the connection between the short extension portion and the inner sleeve housing while enabling the second mating end and the second mating end to be inserted and connected, and restricting the freedom degree of the second mating end in a direction outside the insertion direction to improve the stability of the second mating end.

[0010] Further, the elastic limiting part includes a limiting pipe orifice facing the first insertion port and extending toward the short extension part along the insertion direction, and two elastic clamping blocks respectively arranged on opposite sides of the limiting pipe orifice and spaced from the limiting pipe orifice. A second insertion port communicating with the first insertion cavity and adapted to the second mating end is formed through the limiting pipe orifice along the insertion direction. Second hooks for restricting the movement of the clamping blocks are arranged on the inner walls of the clamping grooves corresponding to the two elastic clamping blocks. When the elastic clamping blocks are clamped and matched with the second hooks, the short extension part abuts against the inner sleeve shell, so that the short extension part is connected to the inner sleeve shell, and the connection stability between the short extension part and the inner sleeve shell is improved by the abutment of the section extension part and the inner sleeve shell.

[0011] Further, the elastic limiting part further includes two extension sections formed by extending from the inner sleeve surface of the first insertion cavity facing the first insertion port toward the long extension part along the insertion direction. The two extension sections are respectively arranged on both sides of the second insertion port, and the opposite side surfaces of the two extension sections are respectively flush with the corresponding side surfaces of the second insertion port, so as to increase the contact area with the second mating end and provide more support for the second mating end.

[0012] Further, a positioning groove communicating with the first assembly cavity and through which the two extension sections pass is formed on the side surface of the long extension part facing the short extension part along the insertion direction. The first insertion port communicates with the positioning groove, so that the two extension sections are used to position the inner sleeve shell and the long extension part.

[0013] Further, the front end connector further includes a first handle hinged on the first plastic housing to squeeze the front end terminal assembly by pulling; there is a first clamping opening that can adjust the width after pulling the first handle and communicates with the outside of the first plastic housing between the first handle and the front end terminal assembly; the rear end connector further includes a second handle hinged on the second plastic housing to squeeze the rear end terminal assembly by pulling, and there is a second clamping opening that can adjust the width after pulling the second handle and communicates with the outside of the second plastic housing between the second handle and the rear end terminal assembly, so as to facilitate the connection of the front end terminal assembly and the rear end terminal assembly with external conductive elements respectively.

[0014] Further, the outer sleeve part includes an outer sleeve shell, a second insertion cavity is formed in the outer sleeve shell and runs through along the insertion direction for the inner sleeve shell to pass through, and a third hook is arranged on the outer sleeve shell along the insertion direction. A limiting block for restricting the movement of the outer sleeve shell is arranged at the position of the inner sleeve shell corresponding to the third hook; a connection structure for connecting with an external object is arranged on the outer side surface of the outer sleeve shell, so as to connect or disassemble with the external object.

[0015] The pluggable electrical connector assembly of the present utility model has at least the following beneficial effects: Brief Description of the Drawings

[0016] The drawings described herein are provided to further understand the present application and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0017] Figure 1 is a schematic structural diagram of the electrical connector of the present utility model;

[0018] Figure 2 is a schematic structural diagram after the front connector, the intermediate connection structure and the rear connector of the present utility model are separated;

[0019] Figure 3 is Figure 2 an enlarged view of part A shown;

[0020] Figure 4 is an exploded view of the electrical connector of the present utility model;

[0021] Figure 5 is a schematic structural diagram of the front connector of the present utility model after hiding the first cover plate;

[0022] Figure 6 is a schematic structural diagram of the front terminal of the present utility model;

[0023] Figure 7 is a front sectional view of the electrical connector of the present utility model;

[0024] Figure 8 is Figure 7 an enlarged view of part B shown;

[0025] Figure 9 is a schematic structural diagram of the intermediate structure of the present utility model;

[0026] Figure 10 is an exploded view of the intermediate connection structure of the present utility model.

[0027] The meanings of the reference numerals in the drawings are as follows:

[0028] Front connector - 1; Front sub - connector - 1a; First cover plate - 1b; First through - hole - 11b; First assembly cavity - 11; First plastic housing - 12; First outer wall surface - 121; First convex column - 122; Third outer wall surface - 123; Fourth outer wall surface - 124; First assembly port - 125; First end plate - 126; Front terminal assembly - 13; First clamping port - 131; First terminal - 132; First mating end - 1321; First assembly end - 1322; First elastic piece - 133; First sliding piece - 134; First handle - 14; Long extension part - 15; Fitting groove - 151; Card slot - 152; First insertion port - 153; Positioning groove - 154;

[0029] Rear-end connector - 2; Rear terminal connector - 2a; Second cover plate - 2b; Second assembly cavity - 21; Second plastic housing - 22; Sixth outer wall surface - 221; Second positioning hole cavity - 222; Eighth outer wall surface - 223; Short extension part - 224; Second hook part - 2241; Second assembly port - 225; Clamping groove - 226; Rear-end terminal assembly - 23; Second clamping port - 231; Second terminal - 232; Second mating end - 2321; Second assembly end - 2322; Second elastic piece - 233; Second sliding piece - 234; Second handle - 24;

[0030] Intermediate connection structure - 3; Inner sleeve part - 31; Inner sleeve housing - 311; First insertion cavity - 3111; Slide groove - 3112; First hook part - 3113; Second guiding inclined surface - 3114; Limit block - 3115; Elastic locking part - 312; Fitting section - 3121; Positioning section - 3122; Rotating shaft - 3123; Hook groove - 3124; First guiding inclined surface - 3125; Pressing section - 3126; Elastic limiting part - 313; Second insertion port - 3131; Limit pipe orifice - 3132; Elastic clamping block - 3133; First hook end - 31331; Extension section - 3134; Third guiding inclined surface - 3135; Outer sleeve part - 32; Outer sleeve housing - 321; Third hook part - 3211; Second hook end - 32111; Shoulder - 32112; Fourth guiding inclined surface - 32113; Fifth guiding inclined surface - 32114; Limit projection - 3212; Second insertion cavity - 3213; Connection structure - 322; Extension edge - 3221; Elastic clamping block - 3222. Detailed implementation mode

[0031] The present utility model will be further described below with reference to the accompanying drawings.

[0032] As Figures 1 to 10 shown, the pluggable electrical connector of the present utility model includes a front-end connector 1 formed by sequentially connecting a plurality of front-end terminal connectors 1a, a rear-end connector 2 formed by sequentially connecting a plurality of rear-end terminal connectors 2a, and an intermediate connection structure 3 detachably connected to the front-end connector 1 and the rear-end connector 2 respectively. The front-end connector 1 and the rear-end connector 2 are respectively used for connecting with external conductive elements. The intermediate connection structure 3 is used to connect the front-end connector 1 and the rear-end connector 2 together, and enable electrical signal transmission between the front-end connector 1 and the rear-end connector 2 after the power is turned on. Moreover, the intermediate connection structure 3 is also used to enable the front-end connector 1 and the rear-end connector 2 to be installed on an object. It should be noted that the object may refer to an external chassis having a space for installing the rear-end connector 2 inside.

[0033] As Figures 1 to 8As shown in the figure, in this embodiment, the front-end connector 1 includes a plurality of front-end sub-connectors 1a and a first cover plate 1b. Each front-end sub-connector 1a of the front-end connector 1 includes a first plastic housing 12 with a first assembly cavity 11 inside, a front-end terminal assembly 13 disposed in the first assembly cavity 11 and having a first mating end 1321, and a first handle 14 hinged on the first plastic housing 12 to squeeze the front-end terminal assembly 13 by pulling. Each first plastic housing 12 is sequentially connected along the width direction. The front-end terminal assembly 13 is installed inside the first plastic housing 12, and the first handle 14 cooperates with the front-end terminal assembly 13 for connection with external conductive elements such as wires. In the content defined in this embodiment, the two sides of the first plastic housing 12 along the width direction respectively have a flat first outer wall surface 121 and a second outer wall surface. The first assembly cavity 11 of each first plastic housing 12 penetrates the first outer wall surface 121 along the width direction, facilitating the installation of each front-end terminal assembly 13 and greatly reducing the installation difficulty of the front-end terminal assembly 13 composed of a complex structure. On the first outer wall surface 121 of each first plastic housing 12, a plurality of first convex columns 122 surrounding the first assembly cavity 11 are convexly provided along the width direction. On the second outer wall surface of each first plastic housing 12, a first positioning hole cavity is recessed along the width direction opposite to each first convex column 122 and adapted to each first convex column 122. After the first plastic housings 12 are sequentially arranged along the width direction, the first outer wall surface 121 and the second outer wall surface of any two adjacent first plastic housings 12 are arranged opposite to each other. The first cover plate 1b has a sheet-like structure and the edge contour is consistent with the edge contour of the first plastic housing 12. The first cover plate 1b is disposed on the first plastic housing 12 at the first position. At the position on the first cover plate 1b opposite to each first convex column 122 along the width direction, a first through hole 11b for the first convex column 122 to pass through is provided. The first cover plate 1b is disposed on the first outer wall surface 121 of the first plastic housing 12 at the first position, and the corresponding first convex column 122 is inserted into the first through hole 11b, so that the first cover plate 1b blocks the first assembly cavity 11 of the first plastic housing 12 at the first position. The first convex column 122 of the second first plastic housing 12 is inserted into the first positioning cavity of the first plastic housing 12 at the first position, so that the second first plastic housing 12 is connected to the first first plastic housing 12. And so on, each first plastic housing 12 is sequentially connected. In order to make the connection between each first plastic housing 12 closer, the diameter of the end of each first convex column 122 is larger than the diameter of the middle of the first convex column 122, and the diameter of the end of the first convex column 122 is slightly larger than the diameter of the first positioning hole cavity, so that the first convex column 122 and the first positioning hole cavity are in interference fit, making the connection between the first cover plate 1b and the first plastic housing 12 and between adjacent first plastic housings 12 closer, and the manufacturing of a single first plastic housing 12 is relatively simple and the assembly is easy.Each first plastic housing 12 has a third outer wall surface 123 and a fourth outer wall surface 124 on both sides along the insertion direction. On the third outer wall surface 123 of each first plastic housing 12, there is a long extension portion 15 protruding and extending toward the rear-end connector 2 along an insertion direction. The first assembly cavity 11 is opened into the long extension portion 15, and the first mating end 1321 extends into the first assembly cavity 11 within the long extension portion 15. The top surface height of the long extension portion 15 is lower than the top surface height of the first plastic housing 12, so as to form an L-shaped step surface between the long extension portion 15 and the first plastic housing 12, so that when the long extension portion 15 is connected and penetrated through the intermediate connection structure 3, the intermediate connection structure 3 can be abutted against the first plastic housing 12 to increase the stability of the intermediate connection structure 3. A first assembly port 125 communicating with the first assembly cavity 11 is opened on the fourth outer wall surface 124 along the insertion direction, and an external conductive element penetrates into the first assembly cavity 11 through the first assembly port 125 to be connected and matched with the front-end terminal assembly 13. In order to facilitate the cooperation between the long extension portion 15 and the intermediate connection structure 3, each long extension portion 15 has a cuboid structure, and after any two adjacent first plastic housings 12 are connected, the corresponding two long extension portions 15 are spaced apart from each other, so that the corresponding number of front-end connectors 1a can be set as needed. On the first side surface of each long extension portion 15 corresponding to the first outer wall surface 121, a first end plate 126 is detachably connected in the same manner as the first cover plate 1b. The first end plate 126 is used to block a part of the corresponding first assembly cavity 11 on the long extension portion 15 to facilitate the installation and removal of the first mating end 1321, and the first cover plate 1b blocks the outside of the first end plate 126 when installed on the corresponding first plastic housing 12.

[0034] In the content defined in this embodiment, there is a first clamping opening 131 outside the first plastic housing 12 that can adjust the width and communicate with the first clamping opening 131 after the first handle 14 is toggled between the first handle 14 and the front-end terminal assembly 13. Specifically, the front-end terminal assembly 13 includes a first terminal 132, a first elastic sheet 133 elastically abutted against both inner walls of the first terminal 132 at both ends, and a first sliding sheet 134 abutted against the first elastic sheet 133 on one side and against the first handle 14 on the other side. One end of the first terminal 132 away from the first elastic sheet 133 extends into the long extension portion 15 to form a first mating end 1321. When the first handle 14 rotates to squeeze the first sliding sheet 134, the first sliding sheet 134 squeezes the first elastic sheet 133 so that a first clamping opening 131 is formed between the first terminal 132 and the first elastic sheet 133. The first clamping opening 131 is directly opposite to the first assembly opening 125 in the insertion direction, so that an external conductive element can be inserted into the first clamping opening 131 through the first assembly opening 125 when the first handle 14 is toggled, and the first clamping opening 131 clamps the conductive element after the first handle 14 is released. One end of the first terminal 132 away from the first mating end 1321 is a first assembly end 1322 for cooperating with the first elastic sheet 133 and the first sliding sheet 134. The first assembly end 1322 has a first substrate and two first side plates that are bent along both sides in the height direction from the first substrate and then extend in the width direction toward the same side, where one first side plate is located at the top and the other first side plate is located at the bottom (such as Figure 5As shown, the first terminal 132 is fixedly installed in the first assembly cavity 11 and remains unchanged. On the first side plate at the top, a first bump is protruded, and on the first side plate at the bottom, a first through slot is formed. At one end of the first elastic piece 133, a second bump is protruded. After the end of the first elastic piece 133 with the second bump abuts against the first side plate at the bottom, the first bump is snapped into the first through slot to limit the movement of the end of the first elastic piece 133 with the second bump. The other end of the first elastic piece 133 faces upward and is bent and inclined toward the first mating end 1321 and then abuts against the bottom side of the first side plate at the top. The first elastic piece 133 is made of an elastic material with self-recovery ability, such as copper. The first sliding piece 134 has a U-shaped structure with an opening facing downward and is erected on the first side plate at the top. One side of the first sliding piece 134 abuts against the first side plate, and the other side of the first slider has a first supporting end at the top and a second supporting end at the bottom. The first supporting end abuts against the first handle 14; an L-shaped notch is formed on the first elastic piece 133, and the second supporting section abuts against the L-shaped notch. On the side of the first sliding piece 134 corresponding to the first bump, a second through slot is formed, and the first bump is movably inserted into the second through slot to prevent the first slider from deviating and affecting the cooperation between the first elastic piece 133 and the first handle 14. To facilitate the operation of the first handle 14, the top of the first assembly cavity 11 penetrates through the first plastic housing 12. One end of the first handle 14 is hinged to the first plastic housing 12 and is located inside the first assembly cavity 11, and the other end of the first handle 14 is located outside the first assembly cavity 11. When the first handle 14 abuts against the first plastic housing 12, the first supporting end of the first slider abuts against the first handle 14, and the first elastic piece 133 abuts against the first side plate. At this time, the first clamping opening 131 is in a closed state; when the first handle 14 is pulled toward the side away from the first plastic housing 12, the first handle 14 gradually squeezes the first sliding piece 134 downward, and the first sliding piece 134 then squeezes the first elastic piece 133 downward to open the first clamping opening 131. At this time, a conductive element can be inserted through the first assembly opening 125 and placed inside the first clamping opening 131. When the first handle 14 is released, the first elastic piece 133 self-recovers to clamp the conductive element. The side of the first substrate close to the rear connector 2 extends into the first assembly cavity 11 in the long extension part 15. The first mating end 1321 includes two first elastic arms. One ends of the two first elastic arms are respectively connected to both sides of the first substrate in the long extension part 15 along the height direction, and the two first elastic arms are integrally formed and bent by the first substrate and respectively abut against the inner wall of the first assembly cavity 11. The other ends of the two first elastic arms extend toward the rear connector 2 side and are inclined toward each other to be gradually narrowed and then bent and extend obliquely away from each other along the height direction to be gradually widened, so that a contact inflection point with the smallest distance is formed between the two first elastic arms.On one side of the long extension portion 15 facing the short extension portion 224, at the contact inflection point position directly opposite to the first mating end 1321 along the insertion direction, a first insertion opening 153 is provided that penetrates the long extension portion 15 towards the rear end connector 2 along the insertion direction. The first insertion opening 153 communicates with the first assembly cavity 11 and allows the second mating end 2321 to pass through along the insertion direction, so that the second mating end 2321 can be inserted and mated with the first mating end 1321.

[0035] Such as Figure 1 , Figure 2 , Figure 4 , Figure 7 and Figure 8As shown, in this embodiment, the rear-end connector 2 includes a plurality of rear terminal connectors 2a and a second cover plate 2b. Each rear terminal connector 2a of the rear-end connector 2 includes a second plastic shell 22 having a second assembly cavity 21 inside, a rear-end terminal assembly 23 disposed in the second assembly cavity 21 and having a second mating end 2321, and a second handle 24 hinged on the second plastic shell 22 to squeeze the rear-end terminal assembly 23 by pulling, each second plastic shell 22 is connected in sequence along the width direction, the rear-end terminal assembly 23 is installed in the second plastic shell 22, and the second handle 24 cooperates with the rear-end terminal assembly 23 to be used for connecting with an external conductive element such as a wire. In the content defined in this embodiment, the second plastic shell 22 has a flush fifth outer wall surface and a sixth outer wall surface 221 on both sides along the width direction, and the second assembly cavity 21 of each second plastic shell 22 passes through the fifth outer wall surface along the width direction, so as to facilitate the installation of each rear-end terminal assembly 23, greatly reducing the installation difficulty of the rear-end terminal assembly 23 with a complex composition. On the fifth outer wall of each second plastic shell 22, a plurality of second bosses surrounding the second assembly cavity 21 are convexly provided in the width direction, and on the sixth outer wall 221 of each second plastic shell 22, a second positioning hole 222 is concavely provided, which is opposite to each second boss in the width direction and is respectively matched with each second boss. After each second plastic shell 22 is arranged in sequence in the width direction, the fifth outer wall and the sixth outer wall 221 of any two adjacent second plastic shells 22 are arranged oppositely. The second cover plate 2b is a sheet-like structure and its edge profile is consistent with the edge profile of the second plastic shell 22. The second cover plate 2b is arranged on the first second plastic shell 22. A second through hole for the second boss to pass through is opened on the second cover plate 2b at a position opposite to each second boss in the width direction. The second cover plate 2b is arranged on the fifth outer wall of the first second plastic shell 22, and the corresponding second boss is penetrated in the second through hole, so that the second cover plate 2b blocks the second assembly cavity 21 of the first second plastic shell 22. The second protrusion of the second plastic shell 22 located at the second position is inserted into the second positioning hole 222 located at the first second plastic shell 22, so that the second second plastic shell 22 is connected to the first second plastic shell 22. By analogy, each second plastic shell 22 is connected in sequence. In order to make the connection between each second plastic shell 22 tighter, the diameter of the end of each second protrusion is larger than the diameter of the middle part of the second protrusion, and the diameter of the end of the second protrusion is slightly larger than the diameter of the second positioning hole 222, so that the second protrusion and the second positioning hole 222 are interference-fitted, so that the connection between the second cover plate 2b and the second plastic shell 22 and between adjacent second plastic shells 22 is tighter, and the manufacture of a single second plastic shell 22 is relatively simple and easy to assemble.Each second plastic housing 22 has a seventh outer wall surface and an eighth outer wall surface 223 on both sides along the insertion direction. A short extension portion 224 protruding and extending toward the rear end connector 2 along an insertion direction is provided on the seventh outer wall surface of each second plastic housing 22. The second assembly cavity 21 is opened into the short extension portion 224. The second mating end 2321 extends into the second assembly cavity 21 in the long extension portion 15. The top surface height of the short extension portion 224 is lower than the top surface height of the second plastic housing 22, so as to form an L-shaped step surface between the short extension portion 224 and the second plastic housing 22, so that when the short extension portion 224 is connected and penetrated through the intermediate connection structure 3, the intermediate connection structure 3 can be abutted against the second plastic housing 22 to increase the stability of the intermediate connection structure 3. A second assembly opening 225 communicating with the second assembly cavity 21 is opened on the eighth outer wall surface 223 along the insertion direction. The external conductive element penetrates into the second assembly cavity 21 through the second assembly opening 225 to be connected and mated with the rear end terminal assembly 23. Among them, the second assembly opening 225 and the first assembly opening 125 are respectively located on the opposite sides of the first plastic housing 12 and the second plastic housing 22. In order to facilitate the cooperation between the short extension portion 224 and the intermediate connection structure 3, each short extension portion 224 has a cuboid structure, and after any two adjacent second plastic housings 22 are connected, the corresponding two short extension portions 224 are spaced apart from each other, so that the corresponding number of rear terminal connectors 2a can be set as required. A second end plate is detachably connected to the side surface of each short extension portion 224 corresponding to the fifth outer wall surface in the same manner as the second cover plate 2b. The second end plate is used to block a part of the corresponding second assembly cavity 21 on the short extension portion 224 to facilitate the installation and disassembly of the second mating end 2321, while the second cover plate 2b blocks the outside of the second end plate when installed on the corresponding second plastic housing 22.

[0036] In the content defined by this embodiment, there is a second clamping opening 231 outside the second plastic housing 22 that can be adjusted in width and communicated after the second handle 24 is toggled between the second handle 24 and the rear-end terminal assembly 23. Specifically, the rear-end terminal assembly 23 includes a second terminal 232, second elastic pieces 233 elastically abutted against the inner walls on both sides of the second terminal 232 at both ends, and a second sliding piece 234 with one side abutted against the second elastic piece 233 and the other side abutted against the second handle 24. One end of the second terminal 232 away from the second elastic piece 233 extends into the short extension part 224 to form a second mating end 2321. When the second handle 24 rotates to squeeze the second sliding piece 234, the second sliding piece 234 squeezes the second elastic piece 233 to form a second clamping opening 231 between the second terminal 232 and the second elastic piece 233. The second clamping opening 231 is directly opposite to the second assembly opening 225 along the insertion direction, so that when the second handle 24 is toggled, an external conductive element can be inserted into the second clamping opening 231 through the second assembly opening 225, and the second clamping opening 231 clamps the conductive element after the second handle 24 is released. One end of the second terminal 232 away from the second mating end 2321 is a second assembly end 2322 for cooperating with the second elastic piece 233 and the second sliding piece 234. The second assembly end 2322 has a second substrate and two second side plates that are bent in an arc along both sides in the height direction and then extend toward the same side in the width direction. One of the second side plates is located at the top and the other second side plate is located at the bottom. The second terminal 232 is fixedly installed in the second assembly cavity 21 and its position remains unchanged. A third bump protrudes from the second side plate located at the top, and a third through slot is formed in the second side plate located at the bottom. A fourth bump protrudes from one end of the second elastic piece 233. After the end of the second elastic piece 233 with the fourth bump abuts against the second side plate located at the bottom, the third bump is inserted into the third through slot to limit the movement of the end of the second elastic piece 233 with the fourth bump. The other end of the second elastic piece 233 faces upward and is bent and inclined toward the second mating end 2321 side and then abuts against the bottom side of the second side plate located at the top. The second elastic piece 233 is made of an elastic material with self-recovery ability such as copper. The second sliding piece 234 has a U-shaped structure with an opening facing downward and is mounted on the second side plate located at the top. One side of the second sliding piece 234 abuts against the second side plate, and the other side of the second slider has a third support end located at the top and a fourth support end located at the bottom. The third support end abuts against the second handle 24; an L-shaped notch is also formed on the second elastic piece 233, and the fourth support section abuts against the L-shaped notch. A fourth through slot is formed on one side of the second sliding piece 234 corresponding to the third bump, and the third bump is movably inserted into the fourth through slot to prevent the second slider from deviating and affecting the cooperation between the second elastic piece 233 and the second handle 24.To facilitate the operation of the second handle 24, the top of the second assembly cavity 21 penetrates through the second plastic housing 22. One end of the second handle 24 is hinged to the second plastic housing 22 and is located inside the second assembly cavity 21, while the other end of the second handle 24 is located outside the second assembly cavity 21. When the second handle 24 abuts against the second plastic housing 22, the third support end of the second sliding piece 234 abuts against the second handle 24, and the second elastic piece 233 abuts against the second side plate. At this time, the second clamping opening 231 is in a closed state; when the second handle 24 is pulled towards the side away from the second plastic housing 22, the second handle 24 gradually presses down on the second sliding piece 234, and the second sliding piece 234 then presses down on the second elastic piece 233 to open the second clamping opening 231. At this time, a conductive element can be inserted through the second assembly opening 225 and placed inside the second clamping opening 231. When the second handle 24 is released, the second elastic piece 233 self-restores to clamp the conductive element. It should be noted that the first plastic housing 12, the first handle 14, the second plastic housing 22, the second handle 24, the first cover plate, the second cover plate 2b, and the intermediate connection structure 3 are all made of non-conductive materials such as plastic, while the front-end terminal assembly 13 and the rear-end terminal assembly 23 are both made of conductive materials such as copper. The long extension part 15 is integrally formed with the first plastic housing 12, and the short extension part 224 is integrally formed with the second plastic housing 22. In this embodiment, the second mating end 2321 of the second terminal 232 is bent from the side of the second assembly end 2322 away from the second elastic piece 233 towards the front-end connector 1 side and is relatively inclined, and then extends straight along the insertion direction towards the front-end connector 1 side. The part of the second assembly cavity 21 opened into the short extension part 224 is adapted to the inclined part of the second mating end 2321 to limit the movement of the second terminal 232 in the insertion direction, while the straight part of the second mating end 2321 ensures the insertion mating between the second mating end 2321 and the first mating end 1321.

[0037] Such as Figures 1 to 5 , Figures 7 to 10As shown, in this embodiment, the intermediate connection structure 3 includes an inner sleeve portion 31 for connecting the long extension portion 15 of the front-end connector 1 and the short extension portion 224 of the rear-end connector 2 to conduct electricity after being energized, and an outer sleeve portion 32 provided on the inner sleeve portion 31 for connecting to an external object. Both the inner sleeve portion 31 and the outer sleeve portion 32 are made of non-conductive materials and do not have electrical conductivity. One side of the inner sleeve portion 31 is detachably sleeved on each long extension portion 15, and the other side of the inner sleeve portion 31 is detachably sleeved on each short extension portion 224, so that a plurality of front terminal connectors 1a and a plurality of rear terminal connectors 2a can be connected and positioned, thereby further improving the connection stability between the front terminal connectors 1a and the rear terminal connectors 2a, preventing the disconnection between the sub-connectors, and enabling the first mating end 1321 and the second mating end 2321 to cooperate with each other to ensure the connection between the long extension portion 15 and the short extension portion 224 while stabilizing the second mating end 2321. The outer sleeve portion 32 is convenient for connecting to an external object.

[0038] In the content defined in this embodiment, the inner sleeve portion 31 includes an inner sleeve shell 311, an elastic locking portion 312 provided on the long extension portion 15, and an elastic limiting portion 313 provided on the inner sleeve shell 311. The inner sleeve shell 311 is used to further strengthen the connection between the front terminal connectors 1a and the connection between the rear terminal connectors 2a. The elastic locking portion 312 is used to lock the long extension portion 15 and the inner sleeve shell 311 to prevent the long extension portion 15 from detaching from the inner sleeve shell 311. The elastic limiting portion 313 is used to connect the short extension portion 224 to the inner sleeve shell 311 and enable the second mating end 2321 to align with the first mating end 1321 and perform insertion mating with the first mating end 1321, realizing the connection and conduction between the front-end connector 1 and the rear-end connector 2.

[0039] In the content defined in this embodiment, the inner housing 311 has a directional structure. A first insertion cavity 3111 is formed in the inner housing 311 and penetrates through to the side of the long extension portion 15 along the insertion direction. The number of the first insertion cavities 3111 corresponds one-to-one with the number of the first long extension portions 15 and are respectively opposite to the long extension portions 15 along the insertion direction. Each long extension portion 15 is inserted into each first insertion cavity 3111. In order to keep the connection between the long extension portion 15 and the inner housing 311 firm and stable, the contour of the first insertion cavity 3111 is adapted to the outer contour of the long extension portion 15 to form a square structure. In this embodiment, the inner side walls of the first insertion cavity 3111 are defined as inner sleeve surfaces. Preferably, a convex strip is convexly provided on the bottom wall of each long extension portion 15, and the length direction of each convex strip is arranged along the insertion direction. A sliding groove 3112 is recessed on the bottom wall of the first insertion cavity 3111 for the convex strip to slide through in the insertion direction. One side of the sliding groove 3112 facing the long extension portion 15 penetrates through the inner housing 311 along the insertion direction, so that the long extension portion 15 can be inserted into the sliding groove 3112 when inserted into the first insertion cavity 3111.

[0040] In the content defined in this embodiment, after the long extension portion 15 is inserted into the first insertion cavity 3111, each outer side surface of the long extension portion 15 faces the corresponding inner sleeve surface of the first insertion cavity 3111, and the elastic locking portion 312 is disposed on at least one outer side surface of the long extension portion 15 to also face the inner sleeve surface. In this embodiment, the number and position of the elastic locking portions 312 correspond one-to-one to the position and number of the long extension portions 15. The elastic locking portion 312 is disposed on the outer side surface of the long extension portion 15 at the top and is made of an elastic material with self-recovery property. An elastic deformation space is formed between the elastic locking portion 312 and the outer side surface of the long extension portion 15, and the elastic deformation space enables the elastic locking portion 312 to swing relative to the long extension portion 15 to a certain extent, so as to lock the long extension portion 15 when it is inserted into the first insertion cavity 3111 to prevent the long extension portion 15 from detaching from the first insertion cavity 3111. When it is necessary to disassemble the long extension portion 15 and the inner sleeve 311, the locking between the long extension portion 15 and the inner sleeve 311 can be released through the elastic locking portion 312. The elastic locking portion 312 has a mating section 3121 disposed along the insertion direction and a positioning section 3122 integrally formed with the mating section 3121 and disposed along the height direction. A mating groove 151 is recessed on the top surface of the long extension portion 15. A cylindrical rotating shaft 3123 is protruded along the width direction at one end of the mating section 3121 of the elastic locking portion 312 away from the positioning section 3122. The two ends of the rotating shaft 3123 extend backward. Arc-shaped grooves 152 with one side open are formed on the corresponding two sides of the mating groove 151 away from one end of the first plastic housing 12. The width of the open side of the arc-shaped groove 152 is smaller than the diameter of the rotating shaft 3123. The two ends of the rotating shaft 3123 are respectively clamped in the two arc-shaped grooves 152 and can rotate relative to the arc-shaped grooves 152, so that the other end of the mating section 3121 and the positioning section 3122 can swing towards the inside and outside of the mating groove 151 relative to the rotating shaft 3123. And when the mating section 3121 is located in the mating groove 151, the bottom of the end of the mating section 3121 away from the first plastic housing 12 abuts against the bottom wall of the mating groove 151, while the end of the mating section 3121 close to the first plastic housing 12 is suspended relative to the bottom wall of the mating groove 151 and is spaced from it. The gap between the end of the mating section 3121 close to the first plastic housing 12 and the bottom wall of the mating groove 151 is defined as the elastic deformation space, and the end of the mating section 3121 close to the first plastic housing 12 can deform and move relative to the side towards the bottom wall of the mating groove 151. A hook groove 3124 for locking the inner sleeve surface facing it of the inner sleeve 311 is recessed on the top of the end of the mating section 3121 close to the first plastic housing 12. A first guiding inclined surface 3125 extending to the hook groove 3124 is provided on the top surface of the mating section 3121. The first guiding inclined surface 3125 slopes from high to low from the side close to the hook groove 3124 to the side away from the first plastic housing 12.After the long extension part 15 is inserted into the first insertion cavity 3111, the inner sleeve 311 is provided with a first hook part 3113 protruding from the inner sleeve surface facing the hook groove 3124 (i.e., the top inner wall of the first insertion cavity 3111) and capable of being clamped in the hook groove 3124. The length of the first hook part 3113 in the insertion direction is less than the length of the hook groove 3124, so that the first hook part 3113 can be entirely clamped into the hook groove 3124. To facilitate the first hook part 3113 being clamped into the hook groove 3124 without external force assistance during assembly, a second guiding inclined surface 3114 is formed on the first hook part 3113 from the side close to the first plastic housing 12 along the insertion direction towards the side close to the second plastic housing 22. The second guiding inclined surface 3114 is parallel to the first guiding inclined surface 3125. When the long extension part 15 is inserted into the first insertion cavity 3111, the second guiding inclined surface 3114 causes the first hook part 3113 to press against the first guiding inclined surface 3125, so that the fitting section 3121 deforms towards the elastic deformation space until the first hook part 3113 is clamped into the hook groove 3124. The positioning section 3122 extends along the height direction towards the side away from the long extension section 3134. The fitting groove 151 extends to the third outer wall surface 123 of the first plastic housing 12 and continues to be formed along the height direction and penetrates through the third outer wall surface 123 of the first plastic housing 12. The positioning section 3122 is clamped in the part of the fitting groove 151 distributed along the height direction, and the positioning section 3122 can move relative to the fitting groove 151 along the height direction. To facilitate driving each elastic locking part 312 to move synchronously during disassembly, one end of each positioning section 3122 away from the fitting section 3121 extends out of the fitting groove 151, and one end of each positioning section 3122 passing through the fitting groove 151 is integrally connected to a pressing section 3126. When disassembly is required, by pressing down the pressing section 3126, the pressing section 3126 presses down the fitting section 3121 through the positioning section 3122, so that the fitting section 3121 deforms towards the elastic deformation space, causing the first hook part 3113 to disengage from the hook groove 3124. After maintaining the state, the long extension part 15 can be disengaged from the first insertion cavity 3111 along the insertion direction, completing the disassembly of the front-end connector 1 and the intermediate connection structure 3.

[0041] In this embodiment, the elastic limiting portion 313 is provided on one side of the inner housing 311 facing the segment extension portion and at a position directly opposite to the first insertion port 153 along the insertion direction. A second insertion port 3131 that penetrates the inner housing 311 and is coaxial with the first insertion port 153 is provided on the elastic limiting portion 313. To facilitate the cooperation between the short extension portion 224 and the elastic limiting portion 313 to achieve detachable connection and disassembly, a mounting groove 226 for the elastic limiting portion 313 to be clamped therein is formed on one side of the short extension portion 224 facing the long extension portion 15. A part of the second assembly cavity 21 located in the short extension portion 224 penetrates the inner wall of the mounting groove 226. The second mating end 2321 penetrates out of the second assembly cavity 21 along the insertion direction from the mounting groove 226. The second insertion port 3131 is used for the second mating end 2321 to pass through along the insertion direction. When the elastic limiting portion 313 is clamped in the mounting groove 226, the second mating end 2321 sequentially passes through the second insertion port 3131 and the first insertion port 153 to be inserted into the first mating end 1321, so that the intermediate connection structure 3 can be connected to the short extension portion 224 and the second mating end 2321 can pass through the first insertion port 153 to cooperate with the first mating end 1321.

[0042] Among the contents defined in this embodiment, the elastic limiting portion 313 includes a limiting pipe orifice 3132 facing the first insertion port 153 and extending toward the short extension portion 224 along the insertion direction, two elastic mounting blocks 3133 respectively arranged on opposite sides of the limiting pipe orifice 3132, and two extension segments 3134 formed by extending from the inner surface of the first insertion cavity 3111 facing the first insertion port 153 toward the long extension portion 15 along the insertion direction. The limiting pipe orifice 3132 has a square structure. A second insertion port 3131 that communicates with the first insertion cavity 3111 and is adapted to the second mating end 2321 is formed through the limiting pipe orifice 3132 along the insertion direction. When the second mating end 2321 penetrates into the second insertion port 3131, the limiting pipe orifice 3132 can limit the degrees of freedom of the second mating end 2321 in the height direction, width direction, and rotation in all directions, so that the second mating end 2321 can only move along the insertion direction relative to the limiting pipe orifice 3132. Thus, when the elastic mounting blocks 3133 cooperate with the mounting groove 226 to connect the short extension portion 224 and the inner housing 311, the second mating end 2321 can cooperate with the first mating end 1321 while also supporting and positioning the second mating end 2321. To facilitate the second mating end 2321 to penetrate into the second insertion port 3131, the side of the second insertion port 3131 facing the short extension portion 224 is in a wide-mouth shape.

[0043] In this embodiment, the elastic clamping block 3133 extends from the inner housing 311 along the insertion direction towards the rear-end connector 2, and the elastic clamping block 3133 is connected to one end of the inner housing 311 and extends towards the limiting pipe orifice 3132 side to be connected, so as to increase the strength of the elastic clamping block 3133. At both ends of the two elastic clamping blocks 3133, there are first hook ends 31331 extending in opposite directions and in a barbed shape. The clamping groove 226 is provided with second hook parts 2241 on the inner walls corresponding to the two elastic clamping blocks 3133 and protruding towards each other to limit the movement of the elastic clamping block 3133. The second hook part 2241 and the inner wall of the clamping groove 226 enclose a groove body for the first hook end 31331 to be inserted into, so that the second hook part 2241 and the first hook end 31331 are hooked and clamped with each other. The two elastic clamping blocks 3133 are both spaced from the limiting pipe orifice 3132, so that the elastic clamping block 3133 can be deformed after being squeezed. In order to facilitate the elastic clamping block 3133 to enter the clamping groove 226, on the sides of the elastic clamping block 3133 and the second hook part 2241 facing each other, there are third guiding inclined surfaces 3135 that are parallel to each other. The cooperation mode of the two third guiding inclined surfaces 3135 is the same as that of the first guiding inclined surface 3125 and the second guiding inclined surface 3114, which will not be elaborated here. During assembly, first align the elastic limiting part 313 with the clamping groove 226 and move the inner housing 311 towards the clamping groove 226 along the insertion direction. The elastic clamping block 3133 is deformed by being squeezed by the second hook part 2241 through the third guiding inclined surface 3135 until both elastic clamping blocks 3133 are clamped into the groove body. When the elastic clamping block 3133 is clamped and matched with the second hook part 2241, the side surface of the short extension part 224 facing the inner housing 311 abuts against the inner housing 311, so that while the elastic limiting part 313 realizes the connection between the short extension part 224 and the inner housing 311 through the elastic clamping block 3133, the short extension part 224 abuts against the inner housing 311 to increase the contact area with the inner housing 311, making the connection more firm and stable, and avoiding the situation of looseness and shaking between the short extension part 224 and the inner housing 311.

[0044] In the content defined in this embodiment, both extension segments 3134 extend from the inner side surface of the inner housing 311 facing the short extension portion 224, that is, from the inner sleeve surface of the first insertion cavity 3111 far from the long extension portion 15. The two extension segments 3134 are respectively arranged on both sides of the second insertion opening 3131. The two elastic clamping blocks 3133 and the two extension segments 3134 are arranged along the height direction. The facing side surfaces of the two extension segments 3134 are flush with the top surface and the bottom surface of the second insertion opening 3131 respectively. The thickness of the second mating end 2321 is set along the height direction. Therefore, the spacing between the second insertion opening 3131 and the two extension segments 3134 is adapted to the thickness of the second mating end 2321, so that the two extension segments 3134 increase the contact area with the second mating end 2321, provide more support for the second mating end 2321, and reduce the possibility of deformation of the second mating end 2321. In order to make the extension segments 3134 better support the second mating end 2321, a positioning groove 154 communicating with the first assembly cavity 11 along the insertion direction is formed on the side surface of the long extension portion 15 facing the short extension portion 224. The positioning groove 154 is used for the two extension segments 3134 to pass through. The first insertion opening 153 communicates with the positioning groove 154 and is included therein. When the long extension portion 15 is inserted into the first insertion cavity 3111 and the elastic locking portion 312 fixes the long extension portion 15, the two extension segments 3134 pass through the positioning groove 154 and extend into the first assembly cavity 11, thereby ensuring the stability between the second mating end 2321 and the first mating end 1321. At the same time, the extension segments 3134 can be positioned with the long extension portion 15 during assembly.

[0045] Such as Figure 1 , Figure 2 , Figure 4 , Figure 9 and Figure 10As shown, in this embodiment, the outer sleeve portion 32 includes an outer sleeve housing 321 and a connection structure 322 disposed on the outer side surface of the outer sleeve housing 321. The outer sleeve housing 321 is used to connect with the inner sleeve housing 311, and the connection structure 322 is used to connect with an external object, so that after the outer sleeve portion 32 is detachably sleeved on the inner sleeve housing 311, it is convenient to connect the electrical connector with the object. Among the contents defined in this embodiment, the outer sleeve housing 321 has a directional structure, is hollow inside and penetrates along the insertion direction. The inner cavity of the outer sleeve housing 321 is defined as a second insertion cavity 3213 and is used to allow the inner sleeve housing 311 to pass through it along the insertion direction. The contour of the second insertion cavity 3213 is adapted to the outer contour structure of the inner sleeve housing 311, so that the outer sleeve housing 321 can be sleeved on the inner sleeve housing 311. Glue reduction grooves with a width smaller than that of the second insertion cavity 3213 are recessed on both sides of the second insertion cavity 3213 to prevent the outer sleeve housing 321 from deforming. A limiting protrusion 3212 is convexly provided on one side of the second insertion cavity 3213 close to the long extension portion 15. The inner sleeve housing 311 penetrates into the second insertion cavity 3213 from the side of the second insertion cavity 3213 close to the short extension portion 224 and abuts against the inside of the limiting protrusion 3212. The limiting protrusion 3212 restricts the inner sleeve housing 311 from passing out of the second insertion cavity 3213 toward the side of the long extension portion 15. A third hook portion 3211 is formed on one side edge of the outer sleeve housing 321 close to the short extension portion 224 and extends toward the short extension portion 224 along the insertion direction. A second hook end 32111 is convexly provided at one end of the third hook portion 3211 away from the outer sleeve housing 321 and protrudes inward in a direction perpendicular to the third hook portion 3211. A limiting block 3115 that restricts the movement of the outer sleeve housing 321 when the outer sleeve housing 321 is sleeved on the inner sleeve housing 311 is convexly provided on the side surface of the inner sleeve housing 311 opposite to the third hook portion 3211 and at a position corresponding to the third hook portion 3211. The limiting block 3115 is provided with two spaced apart along a direction perpendicular to the insertion direction. The third hook portion 3211 can freely pass through between the two limiting blocks 3115 along the insertion direction. Shoulder portions 32112 are convexly provided on the third hook portion 3211 at positions corresponding to the two limiting blocks 3115 and extend backward. Fourth guiding inclined surfaces 32113 that are wedge-shaped and cooperate with each other are provided on both the two shoulder portions 32112 and the two limiting blocks 3115. A fifth guiding inclined surface 32114 is provided on the second hook end 32111. During assembly, the outer sleeve housing 321 is sleeved on the inner sleeve housing 311. The third hook portion 3211 deforms through the fifth guiding inclined surface 32114, and the shoulder portions 32112 gradually cross over the limiting block 3115 through the fourth guiding inclined surface 32113. When the shoulder portions 32112 completely cross over the limiting block 3115 and abut against each other, the second hook end 32111 is clamped on the side surface of the inner sleeve housing 311 facing the short extension portion 224, so as to realize the detachable connection between the outer sleeve housing 321 and the inner sleeve housing 311 first.

[0046] In this embodiment, the connection structure 322 includes extension edges 3221 extending outward from the respective side edges of the outer housing 321 near the long extension portion 15 and two elastic clamping blocks 3222 separately provided on the opposite outer side surfaces of the outer housing 321. The extension edges 3221 are in a frame shape, and the length of the extension edges 3221 is greater than the length of the second plastic housing 22, and the width of the extension edges 3221 is greater than the width of the second plastic housing 22, so that the projection of the second plastic housing 22 in the insertion direction is located within the extension edges 3221. Thus, a hole for the second plastic housing 22 to pass through can be formed in an object such as a chassis, enabling the rear connector 2 to penetrate into the chassis. Mounting holes are provided on the extension edges 3221 to facilitate the mounting of the extension edges 3221 on the chassis. The two elastic clamping blocks 3222 are used to be clamped or fitted with the inner wall of the chassis.

[0047] The working mode of one embodiment of the pluggable electrical connector of the present utility model is as follows: During assembly, the long extension portion 15 can first be aligned with the first insertion cavity 3111, and then the long extension portion 15 is moved into the first insertion cavity 3111 until the first hook portion 3113 is clamped in the hook groove 3124, completing the installation of the front connector 1 and the intermediate connection structure 3. Subsequently, when the elastic limiting portion 313 is aligned with the clamping groove 226, the second mating end 2321 is inserted into the second insertion port 3131 until the elastic limiting portion 313 is engaged in the clamping groove 226 while the second mating end 2321 penetrates into the first assembly cavity 11 and is inserted opposite to the first mating end 1321, completing the connection between the rear connector 2 and the intermediate connection structure 3 and the conduction between the front connector 1 and the rear connector 2. Then, the rear connector 2 is penetrated into the object, and the intermediate connection structure 3 is mounted on the object through the connection structure 322. When it is necessary to terminate the conduction between the front connector 1 and the rear connector 2, the elastic locking portion 312 is pressed to disengage the first hook portion 3113 from the hook groove 3124, and then the front connector 1 can be disassembled in the insertion direction.

Claims

1. A pluggable electrical connector, comprising a front connector and a rear connector, characterized in that: An intermediate connection structure for connecting and conducting the front-end connector and the rear-end connector is detachably connected between the front-end connector and the rear-end connector; the intermediate connection structure includes an inner sleeve for connecting the front-end connector and the rear-end connector and conducting the front-end connector and the rear-end connector after power is turned on, and an outer sleeve provided on the inner sleeve for fixing on an object.

2. The pluggable electrical connector according to claim 1, characterized in that: The front-end connector comprises a first plastic shell having a first assembly cavity therein and a front-end terminal assembly disposed in the first assembly cavity and having a first mating end, the first plastic shell having a long extension portion protruding toward one side of the rear-end connector along a plugging direction, the first mating end extending into the long extension portion, and one side of the intermediate connection structure being detachably sleeved on the long extension portion; The rear-end connector includes a second plastic shell with a second assembly cavity inside and a rear-end terminal assembly arranged in the second assembly cavity and having a second mating end. The second plastic shell has a short extension portion protruding toward one side of the front-end connector along the plug-in direction. The other side of the intermediate connection structure is detachably connected to the short extension portion. The second mating end passes through the short extension portion and the intermediate connection structure along the plug-in direction and then is mated with the first mating end.

3. The pluggable electrical connector according to claim 2, characterized in that: The inner sleeve portion includes an inner sleeve shell, in which a first insertion cavity is formed that passes through the long extension portion along the insertion direction, the long extension portion is inserted in the first insertion cavity, the short extension portion is detachably connected to the inner sleeve shell, and the outer sleeve portion is detachably sleeved on the inner sleeve shell.

4. The pluggable electrical connector according to claim 3, characterized in that: The inner sleeve portion also includes an elastic locking portion arranged on the outer side surface of the long extension portion and facing at least one inner sleeve surface of the first insertion cavity, an elastic deformation space is formed between the elastic locking portion and the outer side surface of the long extension portion, and the elastic locking portion has a hook groove for locking the inner sleeve surface of the inner sleeve shell; a first hook portion that can be clamped in the hook groove is convexly provided on the inner sleeve surface of the inner sleeve shell at a position corresponding to the hook groove.

5. The pluggable electrical connector according to claim 3 or 4, characterized in that: A first insertion opening communicating with the first assembly cavity and allowing the second mating end to pass through along the insertion direction is provided on a side surface of the long extension portion facing the short extension portion at a position corresponding to the first mating end along the insertion direction; An elastic limiting portion is protruded on one side surface of the inner shell facing the short extension portion and at a position opposite to the first insertion port along the insertion direction. The elastic limiting portion has a second insertion port coaxial with the first insertion port and for the second mating end to pass through along the insertion direction. A clamping groove for the elastic limiting portion to be clamped therein is provided on a side of the short extension portion facing the long extension portion. The second mating end passes out of the second assembly cavity from the clamping groove. When the elastic limiting portion is clamped in the clamping groove, the second mating end sequentially passes through the second insertion port and the first insertion port to be inserted into the first mating end.

6. The pluggable electrical connector according to claim 5, characterized in that: The elastic limiting portion includes a limiting pipe mouth extending toward one side of the short extension portion along the plug-in direction and facing the first plug-in port, and two elastic clamping blocks arranged on opposite sides of the limiting pipe mouth and spaced from the limiting pipe mouth. The limiting pipe mouth is provided with the second plug-in port connected to the first plug-in cavity and adapted to the second mating end along the plug-in direction. The clamping groove corresponds to the inner wall of the two elastic clamping blocks and is provided with a second hook portion for limiting the movement of the clamping block. When the elastic clamping block is clamped and matched with the second hook portion, the short extension portion is pressed against the inner shell.

7. The pluggable electrical connector according to claim 6, characterized in that: The elastic limiting portion also includes two extension sections extending from the inner sleeve surface of the first insertion cavity opposite to the first insertion port along the insertion direction toward one side of the long extension section, and the two extension sections are arranged on both sides of the second insertion port, and the opposite side surfaces of the two extension sections are respectively flush with the corresponding side surfaces of the second insertion port.

8. The pluggable electrical connector according to claim 7, characterized in that: A positioning groove connected to the first assembly cavity and allowing the two extension sections to pass therethrough is formed on one side surface of the long extension portion facing the short extension portion along the plug-in direction, and the first plug-in port is connected to the positioning groove.

9. The pluggable electrical connector according to claim 2, characterized in that: The front connector also includes a first handle hinged on the first plastic shell to squeeze the front terminal assembly by pulling; a first clamping opening is provided between the first handle and the front terminal assembly, which can adjust the width and communicate with the outside of the first plastic shell after pulling the first handle; The rear-end connector also includes a second handle hinged on the second plastic shell to squeeze the rear-end terminal assembly by pulling, and a second clamping opening is provided between the second handle and the rear-end terminal assembly, which can adjust the width and connect to the outside of the second plastic shell after pulling the second handle.

10. The pluggable electrical connector according to claim 3, characterized in that: The outer sleeve portion includes an outer sleeve shell, a second insertion cavity is formed in the outer sleeve shell, which penetrates along the plug-in direction and is for the inner sleeve shell to pass through, and a third hook is provided on the outer sleeve shell along the plug-in direction, and a limit block is provided at a position of the inner sleeve shell corresponding to the third hook for limiting the movement of the outer sleeve shell when the outer sleeve shell is sleeved on the inner sleeve shell; a connection structure for connecting to an external object is provided on the outer side surface of the outer sleeve shell.

Images