High-voltage Shielded Electrical Connector Assembly

Abstract

The present invention relates to the technical field of electrical connectors, and discloses a high-voltage shielded electrical connector assembly including a plug connector and a socket connector. The plug connector includes a first insulating body and a first terminal assembly. A wire cover is detachably connected to the first insulating body, and a handle portion having an elastic portion is hinged to the first insulating body. The socket connector includes a second insulating body and a second terminal assembly. The second insulating body is connected to the first insulating body from the second surface of the first insulating body. The second terminal assembly is inserted and connected to the first terminal assembly, and the handle portion is detachably connected to the second insulating body. By providing the handle portion, when the plug connector and the socket connector cooperate with each other through the first insulating body and the second insulating body respectively to achieve simple plugging connection and disassembly, the handle portion can lock the first insulating body and the second insulating body in the plugging direction, thereby effectively improving the connection firmness and stability between the plug connector and the socket connector and enhancing the safety performance.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical connectors, and particularly to a high-voltage shielded electrical connector assembly. Background Art

[0002] Electrical connector assemblies are widely used in electronics, electrical appliances, and instruments. Their function is to serve as a connecting bridge at the blocked or independently unconnected parts in a circuit, taking on the task of current or signal transmission; or cooperating with electrical harness terminals to form a board-to-wire connection; or being independently used for board-to-board connection. Electrical connector assemblies are widely used in various fields, such as in motor vehicle fields like automobiles and electric vehicles for connecting various electrical components.

[0003] An electrical connector assembly usually consists of a plug connector and a socket connector that are inserted and mated with each other for transmitting current or signals. A high-voltage shielded electrical connector assembly has a shielding function, which can effectively prevent electromagnetic interference and signal leakage. A high-voltage shielded plug is usually wrapped by an insulating housing to ensure no electric leakage or short circuit occurs when transmitting high-voltage current; a terminal structure is provided inside for current transmission. After the installation of the terminal structure of the plug, one end of the terminal structure is used to dock with a complementary terminal, and the other end of the terminal structure is connected to a linear connecting object such as a cable. After one end of the linear connecting object is connected to the terminal structure, some plug connectors require the linear connecting object to be bent in a certain direction. For this reason, the insulating housing is provided with a wire cover, and the insulating housing and the wire cover work together in the plug connector to jointly ensure the stable fixation and unified direction of the linear connecting object. The insulating housing provides an installation basis for the wire cover, and the wire cover, through its specific design, restricts the linear connecting object to a predetermined position and makes it pass through in a unified direction as required. This cooperative working mechanism not only improves the connection reliability but also makes the overall plug more compact and beautiful. However, the connection between the existing plug connector and the socket connector is usually a simple plugging and snap-fitting, and the overall connection stability is relatively poor. Summary of the Invention

[0004] Aiming at the deficiencies of the above-mentioned prior art, the technical problem to be solved by the present invention is: to provide a high-voltage shielded electrical connector assembly to solve the problem of poor connection stability between the plug connector and the socket connector.

[0005] To solve the above technical problems, a technical solution adopted by the present invention is: to provide a plug connector of a high-voltage shielding electrical connector assembly. The plug connector includes a first insulating body and a first terminal assembly installed in the first insulating body. A linear connecting object penetrates into the first insulating body from a first surface of the first insulating body to be connected to the first terminal assembly. A wire cover detachably connected to the first insulating body covers the first surface of the first insulating body. A handle portion with an elastic portion is hinged to the first insulating body; and a socket connector. The socket connector includes a second insulating body and a second terminal assembly installed in the second insulating body. The second insulating body is connected to the first insulating body from a second surface of the first insulating body. The second terminal assembly is inserted and connected to the first terminal assembly. The handle portion is detachably connected to the second insulating body. After the handle portion is connected to the first insulating body, the connected first insulating body and the second insulating body are further connected and fixed, and at the same time, the wire cover is fixed.

[0006] Further, the first insulating body includes a first main housing, a rear cover and a front cover. A first installation structure for the first connection end of the first terminal assembly to penetrate therein is formed in the first main housing. A first surrounding section with a hollow interior and open towards the wire cover side is formed around the first surface of the first main housing. The rear cover is installed in the first surrounding section. The handle portion is hinged to the first main housing. The wire cover is connected to the first main housing to block the open side of the first surrounding section; A second installation structure for the linear connecting object to penetrate along the insertion direction and enter the first installation structure is formed on the rear cover. A wire sealing body for sealing the first surrounding section is provided between the rear cover and the first installation structure in the first surrounding section. A third installation structure for the linear connecting object to pass through is provided on the wire sealing body; The front cover is detachably connected to the second surface of the first main housing. A fourth installation structure for a second connection end of the first terminal assembly to penetrate therein is provided on the front cover, so as to install the first terminal assembly and the linear connecting object and at the same time realize the sealing inside the first main housing.

[0007] Further, a limiting structure for restricting the first terminal assembly from moving in the insertion direction is inserted on the first main housing. The limiting structure is located between the first installation structure and the fourth installation structure; The limiting structure includes a main body portion and a limiting portion extending along the X-axis direction. A restricted portion for the limiting portion to restrict the first terminal assembly from moving in the insertion direction is recessed on the first terminal assembly, thereby improving the use safety and stability of the first terminal assembly.

[0008] Further, a first positioning structure for abutting against the inner wall of the first surrounding section is provided on the outer side wall of the rear cover to restrict the rear cover from moving in the Y-axis direction and the X-axis direction, thereby ensuring the stable use of the rear cover.

[0009] Furthermore, the second insulating body includes a second main shell, the second main shell has a fifth mounting structure for a penetration end of the second terminal assembly to pass through along the plug-in direction, a second enclosure section with a hollow interior and an opening toward the plug connector is formed on the first surface of the second main shell, the second enclosure section is sleeved on the first main shell and the front cover along the plug-in direction, a positioning portion is convexly provided on the first surface of the second main shell, and a positioning groove for the positioning portion to pass through is provided on the front cover; a third enclosure section with a hollow interior and an opening toward a side away from the plug connector is formed on the second surface of the second main shell, the penetration end of the second terminal assembly passes through the fifth mounting structure and enters the fourth mounting structure to be plugged with the first terminal assembly, a welding end of the second terminal assembly passes through the fifth mounting structure and the third enclosure section in sequence and then passes out of the third enclosure section to facilitate the connection between the first main shell and the second main shell.

[0010] Furthermore, a positioning plate is clamped on the open side of the third enclosure section, and a sixth mounting structure is provided on the positioning plate for the welding end of the second terminal assembly to pass through, so as to provide support for the second terminal assembly and reduce the possibility of deformation of the second terminal assembly.

[0011] Further, the handle portion includes a binding portion, the elastic portion is formed on the binding portion, a mating surface is formed on a side of the wire cover facing away from the first insulating body, a limiting locking portion is provided on a side edge of the mating surface, the limiting locking portion restricts the binding portion when the binding portion rotates to the mating surface, the elastic portion approaches or abuts against the limiting locking portion at this time, and the restriction on the binding portion is released when the limiting locking portion is pressed. The elastic portion deforms and rebounds after being squeezed by the limiting locking portion when the restriction is released, so that the binding portion moves away from the mating surface; the first insulating body has a first side wall and a second side wall that are respectively adjacent to the first surface along the Y-axis direction, the first side wall and the second side wall are arranged opposite to each other, and the handle portion further includes wing plates extending along the insertion direction from opposite sides of the binding portion respectively. The middle portions of the two wing plates are respectively rotatably connected to the first side wall and the second side wall, so that the binding portion can rotate to approach or move away from the mating surface; the binding portion includes a top plate connected to the two wing plates and the elastic portion, the elastic portion is in an arc strip shape and both ends are integrally connected to one side edge of the top plate, and the middle portion of the elastic portion protrudes toward the side away from the top plate to have a space for the elastic portion to deform between the elastic portion and the top plate; the limiting locking portion includes a fixed block and an elastic clamping block respectively arranged on both side edges of the mating surface along the X-axis direction. A receiving groove for the elastic clamping block to penetrate into when being squeezed is formed on an outer wall of the wire cover between the mating surface and the elastic clamping block. The top plate passes through and squeezes the elastic clamping block when rotating, so that the top plate rotates to the mating surface, and the elastic clamping block abuts against the top plate moving to the mating surface. The elastic portion approaches or abuts against the fixed block when the top plate moves to the mating surface, thereby realizing the connection and cooperation among the handle portion, the wire cover and the first insulating body, which is not only convenient for installation but also convenient for disassembly.

[0012] Further, swing grooves for the wing plates to swing are recessed and formed on both the first side wall and the second side wall. The swing grooves are arranged with openings on the sides away from the mating surface. A rotating shaft rotatably connected to the middle portion of the wing plate protrudes in the middle of the swing groove, and the top plate rotates around the rotating shaft; first stop protrusions and second stop protrusions protrude respectively on both sides of the swing groove distributed along the X-axis direction. A first convex block protrudes toward the insulating body side on an inner side wall of the wing plate and on the side of the swing groove away from the wire cover. When the first convex block approaches the first stop protrusion, the binding portion cooperates with the mating surface. When the first convex block approaches the second stop protrusion, the binding portion moves away from the mating surface, thereby restricting the rotation angle of the handle portion and providing support for the wing plate when the top plate supports and cooperates with the mating surface; support points that are in point contact with the outer wall of the wire cover when the wing plates rotate are provided on inner side walls of the two wing plates close to the binding portion, thereby further improving the stability of the wing plates.

[0013] Further, both sides of the two wing plates away from the top plate extend toward the side of the socket connector to form arc-shaped wing feet. The first bump is formed on the wing feet. A sliding hole that penetrates along the Y-axis direction and is arc-shaped with the rotating shaft as the center is provided on the wing feet. One end of the sliding hole penetrates the wing feet along the arc direction to form an open end. A slider that penetrates into the sliding hole is protruded on the outer side wall of the socket connector opposite to the wing plate. When the top plate rotates away from the mating surface, the slider is located at the open end. When the top plate rotates to the mating surface, the slider is located at the other end, thereby realizing the fixation of the socket connector.

[0014] Further, the wire cover and the first insulating body are connected by a sliding connection structure. The sliding connection structure enables the wire cover to be loaded and unloaded on the first insulating body along the X-axis direction to improve the firmness between the wire cover and the first insulating body.

[0015] The high-voltage shielded electrical connector assembly of the present invention has at least the following beneficial effects: By providing a handle portion, when the plug connector and the socket connector are simply plugged and disconnected through the cooperation of the first insulating body and the second insulating body, respectively, the handle portion can lock the first insulating body and the second insulating body in the plugging direction, thereby effectively improving the connection firmness and stability between the plug connector and the socket connector and enhancing the safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments and descriptions thereof of the present application 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 present invention;

[0018] Figure 2 is a side cross-sectional view of the present invention;

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

[0020] Figure 4 is a schematic structural diagram of the plug connector and the socket connector of the present invention after being separated;

[0021] Figure 5 is a schematic structural diagram of the plug connector of the present invention;

[0022] Figure 6 is a partial front view of the plug connector of the present invention;

[0023] Figure 7 is Figure 6 a partial cross-sectional view taken along the B-B direction;

[0024] Figure 8 Front cross-sectional view of the plug connector of the present invention cut along the C-C direction in Figure 6 it;

[0025] Figure 9 Exploded view of the plug connector of the present invention;

[0026] Figure 10 Exploded view of the plug connector of the present invention from another angle;

[0027] Figure 11 Schematic diagram of the matching structure of the limiting structure and the first terminal assembly of the present invention;

[0028] Figure 12 Schematic diagram of the structure of the limiting structure of the present invention;

[0029] Figure 13 Exploded view of the socket connector of the present invention.

[0030] The meanings of the reference numerals in the drawings are as follows:

[0031] Insulating body - 1; positioning groove - 11; first main housing - 12; surrounding side plate - 121; clamping block - 122; first mounting structure - 123; first square body - 1231; first mounting hole - 1232; sealing ring - 1233; first side wall - 1241; first surrounding section - 125; front cover - 13; fourth mounting structure - 131; fourth square body - 1311; fourth mounting hole - 1312; support plate section - 13111; protruding plate section - 13112; step section - 13113; surrounding secondary side plate - 132; mounting groove - 14; first groove section - 141; notch - 142; mounting section - 143; second groove section - 144; sliding groove - 145; limiting groove - 146; tooth groove part - 1461; rear cover - 15; second mounting structure - 151; second square body - 1511; second mounting hole - 1512; positioning structure - 152; first glue reduction groove - 1521; first convex part - 1522; second convex part - 1523; third convex part - 1524; wire sealing body - 16; sealing convex part - 161; third mounting structure - 162; third square body - 1621; third mounting hole - 1622; swinging groove - 171; rotating shaft - 172; first stop convex part - 173; second stop convex part - 174;

[0032] First terminal assembly - 2; first terminal - 2a; second terminal - 2b; first connection end - 21; wire holding arm - 211; restricted part - 22; second connection end - 23; insertion interface - 24; first elastic piece - 25; second elastic piece - 26; first convex package - 27;

[0033] Limit structure - 3; main body part - 31; limit baffle - 311; limit part - 32; extension arm - 321; sliding convex part - 3211; anti - rotation convex part - 3212; edge extension arm - 3213; enclosure part - 3214; avoidance hole - 3215; tooth part - 3216; locking slot - 322; folding part - 3221; first limit area - 3222; second limit area - 3223;

[0034] Wire cover - 4; open side - 41; inclined plane side - 42; mating surface - 43; limiting and locking part - 44; fixing block - 441; elastic clamping block - 442; storage groove - 443;

[0035] Handle part - 5; restraint part - 51; top plate - 511; elastic part - 512; stop block - 513; wing plate - 52; first convex block - 521; second convex bulge - 522; wing foot - 523; sliding hole - 524; open end - 5241;

[0036] Sliding connection structure - 6; chute part - 61; second convex block - 611; end block - 612; slide rail part - 62;

[0037] Second insulating main body - 7; second main housing - 71; fifth mounting structure - 711; fifth square body - 7111; fifth mounting hole - 7112; slider - 7113; second enclosing section - 712; third enclosing section - 713; opening groove - 7131; positioning part - 714; positioning plate - 715; sixth square body - 7151; sixth mounting hole - 7152; positioning column - 7153;

[0038] Second terminal assembly - 8; third terminal - 8a; fourth terminal - 8b; penetrating end - 81; welding end - 82; clamping section - 83; elastic hook part - 831. Specific embodiments

[0039] The present invention will be further described below with reference to the accompanying drawings.

[0040] As Figures 1 to 3 shown, the high - voltage shielding electrical connector assembly of the present invention includes a plug connector and a socket connector. The plug connector is connected to a linear connecting object such as a cable, and the socket connector is connected to a circuit board. After the plug connector and the socket connector are connected and mated, the circuit is conducted.

[0041] As Figures 4 to 12As shown, the plug connector includes a first insulating body 1, a first terminal assembly 2 installed in the first insulating body 1, a wire cover 4 detachably connected to the first surface of the first insulating body 1, a handle portion 5 hinged to the first insulating body 1, and a limiting structure 3 inserted on the first insulating body 1. The first insulating body 1 provides protection for the first terminal assembly 2. The first terminal assembly 2 has a first connection end 21 and a second connection end 23. A linear connector penetrates into the first insulating body 1 from the first surface of the first insulating body 1 to be connected to the first connection end 21 of the first terminal assembly 2, thereby providing power transmission to the first terminal assembly 2. The second connection end 23 of the first terminal assembly 2 is used for plugging and mating with a socket connector to achieve electrical signal transmission between the plug connector and the socket connector. The wire cover 4 provides protection for the rear end of the first insulating body 1 and enables the linear connector connected to the first terminal assembly 2 to extend from one direction, facilitating the arrangement of the linear connector. The handle portion 5 is rotated to fix the wire cover 4, thereby restricting the wire cover 4 in the plugging direction and enhancing the connection firmness between the wire cover 4 and the first insulating body 1. The limiting structure 3 is used to limit the first terminal assembly 2 to prevent the first terminal assembly 2 from moving in the plugging direction, thereby preventing the possibility of the first terminal assembly 2 moving and loosening during plugging and unplugging, ensuring the stability of the first terminal assembly 2, guaranteeing the normal use of the first terminal assembly 2, reducing the number of repairs, and lowering costs.

[0042] In this embodiment, the first insulating body 1 includes a first main housing 12, a rear cover 15, a wire sealing body 16, and a front cover 13. The first terminal assembly 2 is installed between the first main housing 12 and the front cover 13. The linear connector is disposed in the rear cover 15 and the wire sealing body 16 and is connected to the first terminal assembly 2 in the first main housing 12. The limiting structure 3 is inserted on the first main housing 12. The first main housing 12, the front cover 13, and the rear cover 15 are all used to provide protection for the first terminal assembly 2 and the linear connector. The wire sealing body 16 provides a sealed environment for the installation of the first terminal assembly 2 in the first main housing 12 to prevent water from entering the first main housing 12 and affecting the use of the first terminal assembly 2.

[0043] In the content defined in this embodiment, the first main housing 12 is formed by plastic injection molding. A first mounting structure 123 for the first connection end 21 of the first terminal assembly 2 to penetrate therein is formed in the first main housing 12. The first mounting structure 123 includes a first square body 1231 in a square block structure and a plurality of first mounting holes 1232 penetrating through the first square body 1231 along the insertion direction. The plurality of first mounting holes 1232 are arranged in a rectangular array on the first square body 1231, and each first mounting hole 1232 is cylindrical and has a diameter adapted to the first connection end 21 of the first terminal assembly 2, so that the first connection ends 21 can all penetrate into the first mounting holes 1232. In order to ensure the sealing performance of the first main housing 12 when connected to the socket connector, a sealing ring 1233 is sleeved on the outer periphery of the first square body 1231. A first surrounding section 125 with a hollow interior and open towards the wire cover 4 is formed by surrounding on the first surface of the first square body 1231 of the first main housing 12. The first surrounding section 125 extends from the edge of the first surface of the first square body 1231 along the insertion direction towards the side away from the second surface, so that the surrounding cavity with a hollow interior and an open first surface is formed. The wire sealing body 16 and the rear cover 15 are both installed in the surrounding cavity, so that the first surrounding section 125 provides support and protection for the wire sealing body 16 and the rear cover 15. The first main housing 12 of the first insulating body 1 has a first side wall 1241 and a second side wall respectively adjacent to the first surface along the Y-axis direction, and the first side wall 1241 and the second side wall are oppositely arranged.

[0044] In the content defined in this embodiment, the rear cover 15 is formed by plastic injection molding. The rear cover 15 includes a second mounting structure 151 for a linear connector to pass through in the insertion direction and penetrate into the first mounting structure 123. The second mounting structure 151 includes a second square body 1511 in a square block structure and a plurality of second mounting holes 1512 penetrating through the second square body 1511 in the insertion direction. The number of the second mounting holes 1512 is the same as that of the first mounting holes 1232 and they are both arranged in a rectangular array on the second square body 1511. The first mounting holes 1232 and the second mounting holes 1512 overlap and align with each other in the insertion direction to correspond. The linear connector penetrates from outside the first main housing 12 through the first mounting holes 1232 into the second mounting holes 1512 to be able to connect with the first connection end 21. In this embodiment, after the second square body 1511 is installed in the inner cavity of the first surrounding section 125, there is a gap between each side wall of the second square body 1511 and the inner wall of the first surrounding section 125, so that the second square body 1511 can be movably inserted into the inner cavity of the first surrounding section 125 for easy installation. In order to prevent the rear cover 15 from shaking and other situations after installation, resulting in a large amount of friction between the rear cover 15 and the first main housing 12 and the linear connector, causing wear and reducing the service life, a positioning structure 152 for pressing against the inner wall of the first surrounding section 125 is provided on the outer side wall of the rear cover 15 to limit the movement of the rear cover 15 in the Y-axis direction and the X-axis direction. In this embodiment, the positioning structure 152 includes first glue-reducing grooves 1521 recessed in two opposite side walls of the second square body 1511, first convex portions 1522 protruding from the inner walls of the two first glue-reducing grooves 1521 in a direction away from each other, and second convex portions 1523 protruding from the other two opposite side walls of the second square body 1511. The two first glue-reducing grooves 1521 are arranged with open ends facing away from each other, and the first surfaces of the two first glue-reducing grooves 1521 are open. The first convex portions 1522 are flush with one side of the notch 142 of the first glue-reducing grooves 1521 to achieve the glue-reducing effect. The positioning structure 152 further includes third convex portions 1524 protruding from the second surfaces of the two first glue-reducing grooves 1521 in opposite directions. The third convex portions 1524 are wedge-shaped, or a guiding arc surface is formed on the second surface side of the third convex portions 1524. The two first convex portions 1522 abut against the inner wall of the surrounding cavity when the rear cover 15 is installed in the surrounding cavity; at least two third convex portions 1524 are arranged in each first glue-reducing groove 1521, and the third convex portions 1524 in the two first glue-reducing grooves 1521 are arranged in a mirror image. The third convex portions 1524 and the second convex portions 1523 achieve stable support through contact with the inner wall of the surrounding cavity after the second square body 1511 is installed in the surrounding cavity.When the two first glue-reducing grooves 1521 are on both sides of the second square body 1511 in the X-axis direction, the third convex portion 1524 restricts the movement of the second square body 1511 in the X-axis direction and the rotational freedom in the insertion direction, and the second convex portion 1523 restricts the freedom in the Y-axis direction; when the two first glue-reducing grooves 1521 are on both sides of the second square body 1511 in the Y-axis direction, the third convex portion 1524 restricts the rotational freedom of the second square body 1511 in the Y-axis direction and the insertion direction, and the second convex portion 1523 restricts the freedom in the X-axis direction, achieving a more comprehensive positioning. It should be noted that in the present invention, the first surface and the second surface both refer to the two opposite side surfaces of each component in the insertion direction. Therefore, each component has a first surface and a second surface.

[0045] In the content defined in this embodiment, since there is a gap between the side wall of the rear cover 15 and the inner wall of the surrounding cavity, and the use environment of the present invention is in an automobile where there may be water vapor and other situations. Therefore, if water vapor enters the first mounting hole 1232 and contacts the first terminal assembly 2, it may cause short circuits and other situations, which is not conducive to the use safety. Therefore, the wire sealing body 16 is provided. The wire sealing body 16 can be made of a semi-rigid elastic material such as rubber and is arranged in the surrounding cavity between the rear cover 15 and the first mounting structure 123. A sealing convex portion 161 protrudes around the side wall of the wire sealing body 16. After the wire sealing body 16 is installed in the surrounding cavity, the sealing convex portion 161 abuts against the inner wall of the surrounding cavity to block the surrounding cavity. In this embodiment, the wire sealing body 16 includes a third mounting structure 162 for allowing a linear connecting object to pass through. The third mounting structure 162 includes a third square body 1621 having a square structure and a plurality of third mounting holes 1622 formed through the third square body 1621 in the insertion direction. The number and positions of the third mounting holes 1622 are adapted to the first mounting hole 1232 and the second mounting hole 1512. Therefore, after the wire sealing body 16 and the rear cover 15 are installed in the surrounding cavity, the first mounting hole 1232, the second mounting hole 1512, and the third mounting hole 1622 are overlapped and aligned in the insertion direction. Among them, the first mounting hole 1232, the second mounting hole 1512, and the third mounting hole 1622 form a first insertion hole section for installing the first connecting section and the linear connecting object.

[0046] In the content defined by this embodiment, the front cover 13 is detachably connected to the second surface of the first main housing 12, which facilitates the connection between the first main housing 12 and the front cover 13, and at the same time facilitates the installation and disassembly of the first terminal assembly 2. The front cover 13 includes a fourth mounting structure 131 for allowing the second connection end 23 of the first terminal assembly 2 to penetrate therein. The fourth mounting structure 131 includes a fourth square body 1311 having a square structure and a plurality of fourth mounting holes 1312 formed on the fourth square body 1311. The number and positions of the fourth mounting holes 1312 are the same as those of the first mounting holes 1232. After the front cover 13 is mounted on the second surface of the first main housing 12, the first mounting holes 1232 and the fourth mounting holes 1312 are overlapped and aligned in the insertion direction. The fourth mounting holes 1312 are defined as second insertion hole segments. The second connection end 23 of the first terminal assembly 2 is mounted in the second insertion hole segments. The first insertion hole segments and the second insertion hole segments together form an assembly cavity, and the first terminal assembly 2 is inserted in the assembly cavity along the insertion direction. To facilitate the connection between the front cover 13 and the first main housing 12 without affecting the installation of the limiting structure 3, and at the same time to facilitate the disassembly of the limiting structure 3, on both sides of the second surface of the first main housing 12 along the X-axis, there are formed enclosing side plates 121 extending along the insertion direction, and an installation groove 14 for installing the limiting structure 3 is formed between the two enclosing side plates 121. To facilitate the connection between the front cover 13 and the first main housing 12, the fourth square body 1311 includes a support plate section 13111 and a convex plate section 13112 protruding from the support plate section 13111 toward the first main housing 12. The length and width of the support plate section 13111 are the same as the length (the length along the X-axis) and width (the length along the Y-axis) of the second surface of the first main housing 12. The fourth mounting holes 1312 are formed on the convex plate section 13112 and penetrate through the support plate section 13111 along the insertion direction. On both sides of the support plate section 13111 corresponding to the two enclosing side plates 121, there are formed stepped sections 13113 protruding along the X-axis relative to the convex plate section 13112. During installation, the convex plate section 13112 penetrates through the two enclosing side plates 121 until the two stepped sections 13113 abut against the two enclosing side plates 121. On the second surface of the two enclosing side plates 121, there are protruding blocks 122, and on the two stepped sections 13113, there are formed card slots corresponding to the respective blocks 122 along the insertion direction. When the two stepped sections 13113 abut against the enclosing side plates 121, the respective blocks 122 penetrate through the respective card slots to achieve positioning.To prevent the limit structure 3 from being exposed between the two surrounding side plates 121, on both sides of the support plate section 13111 along the Y-axis direction corresponding to the part between the two surrounding side plates 121, surrounding secondary side plates 132 are convexly formed along the insertion direction toward the first main housing 12. After the front cover 13 is connected to the first main housing 12, the surrounding secondary side plates 132 are located on both sides along the Y-axis direction between the two surrounding side plates 121, so that the surrounding secondary side plates 132, the surrounding side plates 121, the convex plate section 13112, and the second surface of the first main housing 12 jointly surround and form an installation groove 14, and the installation groove 14 covers the middle of the assembly cavity and intersects and communicates with the assembly cavity.

[0047] In this embodiment, the first terminal assembly 2 includes a first terminal 2a and a second terminal 2b, and the first terminal 2a and the second terminal 2b are respectively used for connecting to linear connectors of different specifications. The first terminal 2a and the second terminal 2b are basically the same in structure and only differ in size. Therefore, the first mounting hole 1232, the second mounting hole 1512, the third mounting hole 1622, and the fourth mounting hole 1312 respectively form a part for mounting the first terminal 2a and another part for mounting the second terminal 2b. Both the first terminal 2a and the second terminal 2b include a first connection end 21, a restricted portion 22, and a second connection end 23 that are integrally formed in sequence along the insertion direction. The first connection end 21 includes a base portion and wire-holding arms 211 that extend obliquely from both sides of the base portion to form a V shape. In use, one end of the linear connector is clamped between the wire-holding arms 211 on both sides to be clamped tightly, and the other end of the linear connector sequentially passes through the first mounting hole 1232, the third mounting hole 1622, and the second mounting hole 1512 to pass out of the first insulating body 1. At the same time, the wire-holding arms 211 abut against the inner wall of the first mounting hole 1232 when passing through the first insertion hole section to achieve the positioning of the first connection end 21. The restricted portion 22 extends from the base portion along the insertion direction, and both sides of the restricted portion 22 are arc-shaped and present a structure with wide ends and a narrowed middle. The second connection end 23 has a circular tubular structure and is formed with an insertion opening 24 that penetrates along the insertion direction inside. The second connection end 23 is inserted into the second insertion hole section during installation. To ensure the connection between the second connection end 23 and the second insertion hole section, a first elastic piece 25 that inclines outward toward the outside of the insertion opening 24 is divided on the second connection end 23. One side of the first elastic piece 25 is integrally connected to the second connection end 23, and the other end of the first elastic piece 25 forms a free end due to the division. The free end faces the restricted portion 22 and inclines outward, so that the first elastic piece 25 abuts against the inner wall thereof when the second connection end 23 penetrates into the second insertion hole section. To enable a tight fit with the second connection end 23 when the complementary terminal penetrates into the insertion opening 24, a second elastic piece 26 that inclines inward toward the inside of the insertion opening 24 is divided on the second connection end 23. One side of the second elastic piece 26 is integrally connected to the second connection end 23, and the other end of the second elastic piece 26 extends away from the restricted portion 22 and inclines inward. When the complementary terminal is inserted into the insertion opening 24, the second elastic piece 26 abuts against the complementary terminal. A plurality of first convex bumps 27 are also stamped and protruded on the outer wall of the second connection end 23 to be used for abutting against the second insertion hole section, so as to increase the support points and improve the connection stability between the second connection end 23 and the second insertion hole section.

[0048] In this embodiment, the wire cover 4 is injection-molded from a plastic material and is detachably connected to the open side of the first surrounding section 125. The interior of the wire cover 4 is hollow, and the second surface side is detachably connected to the periphery of the open side 41 of the first surrounding section 125. One side wall of the wire cover 4 is open to facilitate the passage of a linear connector. In this embodiment, the side of the wire cover 4 along the X-axis direction is open to form the open side 41. The side of the wire cover 4 away from the open side 41 along the X-axis is inclined and defined as the inclined surface side 42, so that the wire cover 4 has a structure with a narrow first surface and a wide second surface, and the handle portion 5 can move back and forth relative to the inclined surface side 42. A mating surface 43 is formed on the first surface of the wire cover 4, that is, on the side of the wire cover 4 facing away from the first insulating body 1, and the handle portion 5 is fixed to the wire cover 4 by cooperating with the mating surface 43. In the content defined in this embodiment, the wire cover 4 and the first insulating body 1 are connected by a sliding connection structure 6, and the sliding connection structure 6 enables the wire cover 4 to be loaded and unloaded on the first insulating body 1 along the X-axis direction. The sliding connection structure 6 includes a chute 145 portion formed on the first surrounding section 125 and a slide rail portion 62 formed on the second surface side of the wire cover 4. The slide rail portion 62 of the wire cover 4 is slidably disposed in the chute 145 portion, so that the wire cover 4 is slidably connected to the first main housing 12. Specifically, two chute 145 portions are provided and are respectively formed on both sides of the open side of the first surrounding section 125 along the Y-axis direction. Each chute 145 portion includes two sets of second protrusions 611. The two sets of second protrusions 611 are both arranged in a plurality along the X-axis direction and are spaced apart. L-shaped grooves are formed on the corresponding two sides of the first surrounding section 125 to have two groove surfaces. The two sets of second protrusions 611 are respectively disposed on the two groove surfaces, and the two sets of second protrusions 611 are spaced apart to form the first chute 145. The slide rail portion 62 forms a first slide rail corresponding to the structure of the first chute 145 and the two sets of second protrusions 611, and the first slide rail is slidably inserted into the first chute 145 along the X-axis direction. In order to unidirectionally limit the sliding of the first slide rail, end blocks 612 are formed at one ends of the two sets of second protrusions 611 on each side to block one end position of the first chute 145, so as to block the wire cover 4 from continuing to slide after the first slide rail is installed in place in the first chute 145. The end block 612 is on the same side as the inclined surface side 42 of the wire cover 4 in the X-axis direction. It should be noted that the chute 145 portion can also be provided on the wire cover 4, and the slide rail portion 62 can also be provided on the first main housing 12, which does not affect the use effect.

[0049] In the content defined by this embodiment, a limiting locking portion 44 is provided on the side of the mating surface 43 of the online cover 4. The limiting locking portion 44 is used to limit the further rotation of the handle portion 5 when the handle portion 5 rotates to the mating surface 43, thereby locking the handle portion 5. The limiting locking portion 44 includes a fixed block 441 and an elastic clamping block 442 that are separately arranged on both sides of the mating surface 43 along the X-axis direction. The fixed block 441 is formed on one side of the first surface of the open side of the wire cover 4, and protrudes from the first surface of the open side 41 of the wire cover 4 toward the side away from the second surface relative to the mating surface 43. The fixed block 441 is stamped and formed on this part and protrudes toward the mating surface 43. A receiving groove 443 is formed on the outer wall of the wire cover 4 between the mating surface 43 and the elastic clamping block 442, that is, on the part of the wire cover 4 between the mating surface 43 and the inclined surface side 42, for the elastic clamping block 442 to penetrate into when it is squeezed. The elastic clamping block 442 is integrally formed from the side of the receiving groove 443 away from the mating surface 43 and extends toward the fixed block 441. There is a gap between the elastic clamping block 442 and the inner wall of the receiving groove 443, so that the elastic clamping block 442 can move relative to the inside of the receiving groove 443. Since the wire cover 4 is made of plastic and has a certain elasticity, the elastic clamping block 442 can deform when pressed and self-recover after the pressure is released. And the elastic clamping block 442 is at least partially located outside the receiving groove 443 when not stressed, so that the elastic clamping block 442 can be deformed by squeezing the elastic clamping block 442 when the corresponding part of the handle portion 5 passes through the inclined surface side 42 and then pass through the receiving groove 443. When the handle portion 5 rotates to the mating surface 43 through the receiving groove 443, the elastic clamping block 442 abuts against the handle portion 5 to limit the handle portion 5 from turning away from the mating surface 43, and the fixed block 441 cooperates with the elastic clamping block 442 at this time to limit the movement of the handle portion 5 in the X-axis direction, so that the handle portion 5 can no longer rotate further.

[0050] In this embodiment, the handle portion 5 is hinged to the first main housing 12 and can be made of a rigid material. The handle portion 5 includes a binding portion 51 and wing plates 52 that extend respectively along the insertion direction from opposite sides of the binding portion 51. The middle parts of the two wing plates 52 are respectively rotatably connected to the first side wall 1241 and the second side wall, so that the binding portion 51 can pass through the inclined surface side 42 to rotate closer to or away from the mating surface 43; the limiting locking portion 44 limits the binding portion 51 when the binding portion 51 rotates to the mating surface 43, and releases the restriction on the binding portion 51 when the elastic clamping block 442 enters the receiving groove 443 under pressure and no longer abuts against the binding portion 51; the wing plates 52 maintain the connection between the handle portion 5 and the first main housing 12 and provide support for the binding portion 51.

[0051] In the content defined by this embodiment, the binding portion 51 includes a top plate 511 connected to the two wing plates 52 and an elastic portion 512 formed on the top plate 511. The elastic portion 512 is in an arc-shaped strip and is integrally connected to one side edge of the top plate 511 at both ends. The middle part of the elastic portion 512 protrudes toward the side away from the top plate 511, so that there is a space for the elastic portion 512 to deform between the elastic portion 512 and the top plate 511. On the other side of the top plate 511 away from the elastic portion 512, a stopper 513 protrudes. The stopper 513 is inclined relative to the top plate 511 toward the side away from the elastic portion 512 and toward the wing plate 52. When the top plate 511 rotates to face the mating surface 43, the top plate 511 is arranged at intervals from the mating surface 43 to ensure the rotation of the top plate 511. At this time, the elastic portion 512 approaches or abuts against the fixing block 441 of the limiting and locking portion 44, and the elastic clamping block 442 abuts against the stopper 513. At this time, the top plate 511 is restricted on the wire cover 4 by the elastic clamping block 442 and the fixing block 441 and cannot rotate; when it is necessary to release the restriction on the top plate 511, by pressing the elastic clamping block 442 into the receiving groove 443, at this time, the top plate 511 is squeezed and rotates a small angle toward the side of the fixing block 441, so that the elastic portion 512 abuts against the fixing block 441, and at this time, the elastic portion 512 is squeezed and undergoes a slight deformation. When the elastic clamping block 442 no longer abuts against the stopper 513, the elastic portion 512 rebounds and pushes the top plate 511 to rotate toward the side away from the mating surface 43 until the stopper 513 quickly passes by the elastic clamping block 442. After that, even if the pressing on the elastic clamping block 442 is released, since the stopper 513 has been ejected by the elastic portion 512 to the outside of the elastic clamping block 442 away from the fixing block 441, therefore, at this time, the top plate 511 can be easily rotated away from the mating surface 43 to complete the unlocking of the wire cover 4. It should be noted that the fixing block 441 and the end block 612 are arranged on both sides of the wire cover 4 in the X-axis direction. After the top plate 511 is locked by the limiting and locking portion 44, the fixing block 441 and the end block 612 also block the wire cover 4 in the X-axis direction to prevent the wire cover 4 from loosening in the X-axis direction.

[0052] In this embodiment, for the convenience of installing the wing plate 52, swing grooves 171 for the wing plate 52 to swing are recessed on both the first side wall 1241 and the second side wall. The swing grooves 171 are arranged with openings on the sides away from the mating surface 43. A rotating shaft 172 rotatably connected to the middle of the wing plate 52 protrudes in the middle of the swing groove 171, and the top plate 511 rotates around the rotating shaft 172. First stop protrusions 173 and second stop protrusions 174 protrude respectively on both sides of the swing groove 171 distributed in the X-axis direction. On the inner side wall of the wing plate 52 and on the side away from the wire cover 4 and facing the insulating body 1, a first convex block 521 protrudes. When the wing plate 52 is installed on the rotating shaft 172, the first convex block 521 is located in the swing groove 171, and both the first stop protrusion 173 and the second stop protrusion 174 are on the circumferential trajectory of the first convex block 521. When the first convex block 521 approaches the first stop protrusion 173, the binding part 51 cooperates with the mating surface 43. When the first convex block 521 approaches the second stop protrusion 174, the binding part 51 is away from the mating surface 43, thereby restricting the rotation angle of the wall plate. On the inner walls of the two wing plates 52 close to the binding part 51, spherical second convex packages 522 protrude. The second convex packages 522 are in point contact with the outer wall of the wire cover 4 when the wing plate 52 rotates to form a support point, thereby ensuring the stability of the wing plate 52.

[0053] In the content defined in this embodiment, on both sides of the two wing plates 52 away from the top plate 511, they extend towards the side of the socket connector to form arc-shaped wing feet 523 with the rotating shaft 172 as the center. The first convex block 521 is formed on the wing feet 523. A sliding hole 524 is opened on the wing feet 523 and penetrates through in the Y-axis direction and is arc-shaped with the rotating shaft 172 as the center. One end of the sliding hole 524 penetrates through the wing feet 523 along the arc direction to form an open end 5241. On the outer side wall of the socket connector facing the wing plate 52, a sliding block 7113 penetrating into the sliding hole 524 protrudes. When the top plate 511 rotates away from the mating surface 43, the sliding block 7113 is located at the open end 5241, and the open end 5241 facilitates the sliding block 7113 to penetrate into the sliding hole 524 when the wing plate 52 is installed on the first main housing 12. When the top plate 511 rotates to the mating surface 43, the sliding block 7113 is located at the other end. Thus, through the cooperation between the sliding hole 524 and the sliding block 7113, the handle part 5 can restrict the socket connector in the plugging direction when the plug connector is connected to the socket connector, thereby preventing the plug connector from detaching from the socket connector and improving the connection firmness and stability of the present invention.

[0054] In this embodiment, the installation groove 14 is formed on the first main housing 12 and communicates with the assembly cavity along the X-axis direction. The structure of the installation groove 14 is adapted to the outer shape of the limiting structure 3. The limiting structure 3 is installed on the first insulating body 1 through the installation groove 14 and restricts the first terminal assembly 2 in the installation groove 14. The limiting structure 3 is located between the first installation structure 123 and the fourth installation structure 131. After the front cover 13 is installed on the second surface of the first main housing 12, the second surface of the first main housing 12 and the bottom cover are arranged at intervals to form the installation groove 14, so as to facilitate the installation of the limiting structure 3. In this embodiment, the limiting structure 3 includes a main body portion 31 extending in the transverse direction and a limiting portion 32 formed on the main body portion 31. The main body portion 31 ensures the connection of the limiting portion 32, and the limiting portion 32 is used to cooperate with the restricted portion 22 to restrict the movement of the first terminal assembly 2 in the insertion direction. In the content defined in this embodiment, the main body portion 31 and the limiting portion 32 are integrally formed. The installation groove 14 penetrates through the two surrounding side plates 121 along the X-axis direction to respectively form a first groove section 141 and a notch 142. The part of the installation groove 14 between the notch 142 and the first groove section 141 is defined as an installation section 143. The first groove section 141 covers the installation section 143 of the installation groove 14 in the X-axis direction, and the main body portion 31 is installed on the first groove section 141. In order to prevent the main body portion 31 from penetrating into the installation section 143 and affecting the limitation of the terminal assembly by the limiting portion 32, a limiting baffle 311 is convexly extended along the insertion direction on the side of the main body portion 31 away from the limiting portion 32. After the main body portion 31 penetrates into the first groove section 141, the limiting baffle 311 abuts against the surrounding side plate 121, so that the main body portion 31 cannot continue to move towards the installation section 143. In order to ensure that the limiting baffle 311 affects the connection and cooperation between the insulating body 1 and the complementary connector, the installation groove 14 further includes a second groove section 144 connected to the first groove section 141 and located on the side of the first groove section 141 away from the installation section 143. The shape of the second groove section 144 is adapted to the shapes of the limiting baffle 311 and the main body portion 31. After the main body portion 31 is installed in the first groove section 141, the limiting baffle 311 penetrates through and abuts against the second groove section 144 as a whole.

[0055] In the content defined in this embodiment, the limiting portion 32 includes at least two extension arms 321 integrally connected to the main body portion 31, each extension arm 321 is extended from the main body portion 31 along the X-axis direction, and each extension arm 321 is arranged in parallel and at equal intervals along the Y-axis direction, and a locking groove 322 that is adapted to the limiting portion 22 and for the limiting portion 22 to pass through is formed between any two adjacent extension arms 321, so that the locking groove 322 is in a middle-folded shape, and in order to facilitate the limiting portion 22 to enter the locking groove 322, the locking groove 322 is arranged through along the X-axis direction toward the side away from the main body portion 31, so that when the limiting structure 3 is installed, each extension arm 321 is parallel to the main body portion 31. The extension arms 321 are all inserted into the installation groove 14, and the restricted portion 22 on the terminal assembly side is aligned with the locking groove 322 in the X-axis direction, so that when each extension arm 321 moves toward the installation section 143, two adjacent extension arms 321 pass through the two sides of the restricted portion 22 of each row or column of the terminal assembly. After the installation is completed, the retracted portion 3221 of the locking groove 322 corresponds to the retracted portion 3221 of the restricted portion 22, and the wide portion of the locking groove 322 on both sides of the plug-in direction corresponds to the wide portion of the restricted portion 22, so that the locking groove 322 and the wide portion of the restricted portion 22 restrict each other, thereby achieving the purpose of restricting the movement of the terminal assembly in the plug-in direction. The locking groove 322 has a first limiting area 3222 for limiting the first terminal 2a and a second limiting area 3223 for limiting the second terminal 2b along the X-axis direction, so as to adapt to the first terminal 2a and the second terminal 2b. In order to prevent the extension arm 321 from tilting when passing through the first groove section 141 and the installation section 143, thereby increasing the difficulty and time of installation, a sliding protrusion 3211 is convexly provided on one side or both sides of each extension arm 321 along the plug-in direction, and the sliding protrusion 3211 is extended along the X-axis direction. A second slide groove 145 adapted to the sliding protrusion 3211 is concavely provided on the assembly cavity, that is, the second surface of the first main shell 12 and / or the side surface of the convex plate section 13112 of the front cover 13 facing the first main shell 12. The second slide groove 145 passes through the two surrounding side plates 121 of the insulating body 1 along the X-axis direction and connects to the installation section 143, the first groove section 141, the second groove section 144 and the notch 142 of the installation groove 14. When the limiting structure 3 is installed in the installation groove 14, each sliding protrusion 3211 is aligned with the second sliding groove 145, and then moves toward the installation along the X-axis direction. The sliding protrusion 3211 slides along the X-axis and penetrates the second sliding groove 145 so that the extension arm 321 can move along the length direction of the second sliding groove 145 to prevent the extension arm 321 from tilting or deviating. In order to increase the stability between the extension arm 321 and the first insulating body 1, an anti-rotation protrusion 3212 is provided on both ends of each extension arm 321. The anti-rotation protrusion 3212 is located on the side of the extension arm 321 that is away from the sliding protrusion 3211, so that the anti-rotation protrusion 3212 and the sliding protrusion 3211 are respectively arranged on both sides of the extension arm 321.If sliding convex parts 3211 are arranged on both sides of each extension arm 321, then the sliding convex part 3211 on one side is regarded as an anti-rotation convex part 3212. A second sliding groove 145 is also formed at a position on the installation groove 14 corresponding to the anti-rotation convex part 3212.

[0056] In this embodiment, the arrangement of the first terminal components 2 in the Y-axis direction is regarded as columns, and the number of the extension arms 321 is equal to the number of columns of the terminal components plus one, so that the number of the locking slots 322 is the same as the number of columns of the first terminal components 2. The two extension arms 321 arranged on the outermost edges on both sides in the Y-axis direction are defined as the edge extension arms 3213. On both sides of the two edge extension arms 3213 arranged in the insertion direction, a surrounding portion 3214 is convexly formed. The sliding convex portion 3211 of the edge extension arm 3213 is covered by the surrounding portion 3214. The surrounding portion 3214 protrudes outward from the sliding convex portion 3211 and the anti-rotation convex portion 3212 in the insertion direction. The second sliding grooves 145 corresponding to the two edge extension arms 3213 continue to extend from the side away from each other to form a limiting groove 146 adapted to the surrounding portion 3214. The limiting groove 146 is also communicated with the assembly cavity and the installation groove 14 and penetrates through the first insulating body 1 in the X-axis direction, so that each surrounding portion 3214 can still penetrate into the installation groove 14. Preferably, the number of the notch openings 142 in the X-axis direction corresponds to the number of the extension arms 321 and there are multiple notch openings 142. Each notch opening 142 communicates with the installation section 143 and the corresponding second sliding groove 145. The two notch openings 142 corresponding to the edge extension arms 3213 also communicate with the limiting groove 146. Each notch opening 142 is formed on the surrounding side plate 121 where the first groove section 141 is not provided. Therefore, each notch opening 142 is directly opposite to the extension arm 321 and the corresponding second sliding groove 145 or limiting groove 146 in the X-axis direction. The ends of the extension arms 321 away from the main body portion 31 respectively penetrate into the notch openings 142. After the limiting structure 3 is installed on the first insulating body 1, the surrounding side plate 121 provides support for both sides of the extension arms 321, thereby improving the stability. Preferably, a tooth portion 3216 is convexly formed on the side of each surrounding portion 3214 away from the main body portion 31. The tooth portion 3216 is in the shape of a triangular tooth or a trapezoidal tooth. At the position of the limiting groove 146 corresponding to the tooth portion 3216, a tooth groove portion 1461 is provided for restricting the movement of the tooth portion 3216 after the limiting structure 3 is installed in the installation groove 14. The tooth groove portion 1461 is adapted to the tooth portion 3216 and is also in the shape of a triangular tooth or a trapezoidal tooth. An avoidance hole 3215 is penetrated in the Y-axis direction at the position of each surrounding portion 3214 corresponding to the tooth portion 3216. The avoidance hole 3215 makes the portion of the surrounding portion 3214 with the tooth portion 3216 thinner and provides a space for deformation when the tooth portion 3216 is subjected to the tooth groove portion 1461. Thus, when the surrounding portion 3214 of the edge extension arm 3213 penetrates into the limiting groove 146 and passes through the tooth groove portion 1461 and is squeezed, it can deform inward, so that the squeezed tooth portion 3216 of the edge extension arm 3213 is locked until it can pass through the tooth groove portion 1461. After the installation is completed, when no external force is applied to the limiting structure 3, the tooth groove portion 1461 blocks the tooth portion 3216 to prevent the extension arm 321 from falling off.When the limiting structure 3 is completely installed, the tooth part 3216 can just cooperate with the tooth groove part 1461, or can be located on the side of the tooth groove part 1461 away from the first groove section 141. Two tooth groove parts 1461 can be arranged in each limiting groove 146. One is close to the groove opening 142. When the installation is completed, the tooth part 3216 is located between this tooth groove part 1461 and the groove opening 142. The other tooth groove part 1461 can be arranged on the side close to the first groove section 141. Thus, when the limiting structure 3 needs to be pulled out, the tooth groove part 1461 on the side close to the first groove section 141 can prevent the limiting structure 3 from directly detaching from the installation groove 14 and make the end of the extension arm 321 away from the main body part 31 located in the installation groove 14. When the limiting structure 3 needs to be installed continuously, it is not necessary to align again and the main body part 31 can be directly pushed to install again, so as to reduce the installation difficulty.

[0057] During use, after the second connection end 23 of the first terminal assembly 2 is inserted into the second insertion hole section, the front cover 13 is aligned with the first main housing 12 and then installed on the first main housing 12 until the first connection end 21 of the first terminal assembly 2 is inserted into the first insertion hole section. Then, each extension arm 321 of the limiting structure 3 is aligned with the second sliding groove 145, and passes through the second groove section 144, the first groove section 141 and the installation section 143 in the X-axis direction in sequence and then penetrates into the groove opening 142. During this process, the tooth part 3216 passes through the tooth groove part 1461, and the restricted part 22 of the first terminal assembly 2 enters the locking slot 322 until the installation is completed. The limiting structure 3 restricts the first terminal assembly 2 in the insertion direction.

[0058] As Figures 1 to 4 , Figure 13 shown, the socket connector includes a second insulating body 7 and a second terminal assembly 8 installed in the second insulating body 7. The second insulating body 7 is used to protect the second terminal assembly 8, and the second insulating body 7 is connected to the first insulating body 1 from the second surface of the first insulating body 1 so that the plug connector and the socket connector can be connected; the second terminal assembly 8 has a penetrating end 81 and a welding end 82. The penetrating end 81 is used to be inserted into the insertion port of the first connection end 21 of the first terminal assembly 2, and the welding end 82 is welded to a circuit board or other electrical components, so as to realize the electrical signal conduction between the plug connector and the socket connector; the handle part 5 is detachably connected to the second insulating body 7, so as to further enhance the connection between the first insulating body 1 and the second insulating body 7.

[0059] In this embodiment, the second insulating body 7 is made of plastic injection molding and includes a second main housing 71, and the second main housing 71 includes a fifth mounting structure 711 for a through-end 81 of the second terminal assembly 8 to pass through along the plugging direction, a second surrounding section 712 formed by surrounding the first surface of the fifth mounting structure 711, and a third surrounding section 713 formed by surrounding the second surface of the fifth mounting structure 711. The fifth mounting structure 711 includes a fifth square body 7111 in a square block structure and a fifth mounting hole 7112 formed on the fifth square body 7111 and adapted to the number and position of the fourth mounting hole 1312. The number of the second terminal assemblies 8 is the same as the number of the first terminal assemblies 2 so as to correspond one to one. The second terminal assembly 8 is penetrated in the fifth mounting hole 7112 and extends into the second surrounding section 712. The interior of the second surrounding section 712 is hollow and open toward the plug connector side. The second surrounding section 712 is sleeved on the two surrounding side panels 121 and the front cover 13 of the first main shell 12 along the plugging direction. The interior of the third surrounding section 713 is hollow and open toward the side away from the plug connector. The penetrating end 81 of the second terminal assembly 8 passes through the fifth mounting structure 711 and extends into the inner cavity of the second surrounding section 712. The welding end 82 of the second terminal assembly 8 passes through the inner cavity of the third surrounding section 713 and out of the third surrounding section 713 to facilitate connection with the circuit board. The inner cavity of the second enclosure section 712 is the same as the outer contour structure of the first mounting structure 123, the two enclosure side plates 121 and the front cover 13 mounted on the two enclosure side plates 121, so that the second enclosure section 712 can be sleeved on the side where the second surface of the first main housing 12 is located, and the sealing ring 1233 on the first square body 1231 penetrates into the second enclosure section 712 with the first square body 1231 and blocks the inner cavity of the second enclosure section 712, thereby preventing water vapor from entering the second enclosure section 712 and affecting the matching between the penetration end 81 of the second terminal assembly 8 and the second connection end 23 of the first terminal assembly 2. After penetrating into the second enclosure section 712 on one side of the second surface of the first main housing 12, the penetration end 81 penetrates into the fourth mounting hole 1312 and into the plug interface 24 along the plugging direction, and the second elastic sheet 26 presses against the penetration end 81, so that the first terminal assembly 2 and the second terminal assembly 8 are in contact, and conduction is achieved after power is turned on. In order to ensure the coordination between the fifth mounting structure 711 and the fourth mounting structure 131, a positioning portion 714 is protruded along the plug-in direction on the first surface of the fifth mounting structure 711. The positioning portion 714 and the fifth mounting hole 7112 are independent of each other and do not interfere with each other. The positioning portion 714 may be sheet-shaped or column-shaped. A plurality of positioning portions 714 may be provided. Some positioning portions 714 may be integrally connected to the inner wall of the second surrounding section 712 to ensure the rigidity of this portion of the positioning portion 714.A positioning groove 11 is formed on the front cover 13 for the positioning portion 714 to penetrate therein. The positions and shapes of the positioning grooves 11 correspond to those of the positioning portions 714. After the first main housing 12 and the second main housing 71 are installed, each positioning portion 714 penetrates into the positioning groove 11, thereby increasing the contact area between the first main housing 12 and the second main housing 71, increasing the locking degree between the first main housing 12 and the second main housing 71, and improving the connection stability. The slider 7113 is formed on the outer walls of both sides of the second surrounding section 712 corresponding to the first side wall 1241 and the second side wall. When installing the first main housing 12 and the second main housing 71, the top plate 511 should be away from the mating surface 43. At this time, the opening end 5241 side of the sliding hole 524 is aligned with the slider 7113 along the insertion direction. When the first main housing 12 and the second main housing 71 are inserted in place, rotate the handle portion 5 to move the top plate 511 toward the mating surface 43 side. The slider 7113 then slides into the sliding hole 524 during this process. Until the handle portion 5 moves to the mating surface 43 and is in place, the wing foot 523 restricts the slider 7113 in the insertion direction through the sliding hole 524 to restrict the connection between the first main housing 12 and the second main housing 71. The third surrounding section 713 extends from the second surface of the fifth square body 7111 along the insertion direction. In order to reduce the amount of glue, the inside of the third surrounding section 713 is hollow, and the insertion direction penetrates the second surface. The welding end 82 of the second terminal assembly 8 in this embodiment needs to penetrate along the Y-axis direction. For this reason, an opening groove 7131 is formed through the side wall corresponding to the third surrounding section 713 along the Y-axis direction. The welding ends 82 of each second terminal assembly 8 penetrate out of the second main housing 71 from the opening groove 7131. Since the inner cavity of the third surrounding section 713 is hollow, after the second terminal assembly 8 penetrates into the third surrounding section 713, due to the use of the second terminal assembly 8, current needs to be connected. The current causes the second terminal assembly 8 to heat and deform during long-term use, which will affect the cooperation between the second terminal assembly 8 and the circuit board. For this reason, a positioning plate 715 is clamped on the opening groove 7131 of the third surrounding section 713, and a sixth mounting structure for the welding end 82 of the second terminal assembly 8 to pass through is provided on the positioning plate 715. The sixth mounting structure includes a sixth square body 7151 in a square structure and a sixth mounting hole 7152 formed through the sixth square body 7151 along the Y-axis direction. A snap structure is provided on the side wall of the sixth square body 7151. A clamping groove is formed on the inner wall of the third surrounding section 713 around the opening groove 7131 corresponding to the snap structure, so that the positioning plate 715 is snap-connected to the third surrounding section 713 along the Y-axis direction to achieve installation and disassembly. The welding ends 82 of each second terminal assembly 8 respectively pass through each sixth mounting hole 7152, thereby realizing the support and protection of the welding end 82 of the second terminal assembly 8 and preventing the welding end 82 from deforming. A positioning post 7153 can be convexly provided on the positioning plate 715 along the Y-axis direction to be adapted to the positioning holes on the circuit board.

[0060] The second terminal assembly 8 includes the penetrating end 81 and the welding end 82. The penetrating end 81 and the welding end 82 are integrally injection-molded and have a long rod structure. To ensure the fit between the penetrating end 81 and the fifth mounting hole 7112 and prevent the penetrating end 81 from disengaging from the fifth mounting hole 7112, an elastic hook portion 831 is protruded at a position corresponding to the fifth mounting hole 7112 on the second terminal assembly 8, so that the width is greater than the width of the penetrating end 81 to form a clamping section 83. After the clamping section 83 penetrates into the fifth mounting hole 7112, the elastic hook portion 831 abuts against the inner wall of the fifth mounting hole 7112, thereby preventing the second terminal assembly 8 from disengaging from the second main housing 71 and ensuring the normal use of the second terminal assembly 8. The penetrating end 81 of the second terminal assembly 8 passes through the fifth mounting structure 711 and penetrates into the fourth mounting structure 131 to be inserted and mated with the first terminal assembly 2, and one welding end 82 of the second terminal assembly 8 passes through the fifth mounting structure 711 and the third surrounding section 713 in sequence and then penetrates out of the third surrounding section 713. It should be noted that the second terminal assembly 8 includes a third terminal 8a and a fourth terminal 8b corresponding to the first terminal 2a and the second terminal 2b. The third terminal 8a is arranged corresponding to the first terminal 2a, and the fourth terminal 8b is arranged corresponding to the second terminal 2b. The corresponding fifth mounting hole 7112 and the sixth mounting hole 7152 are adaptively arranged.

[0061] One working mode of an embodiment of the high-voltage shielded electrical connector assembly of the present invention is as follows: after the plug connector and the socket connector are connected, parts such as the front cover 13 and the first square body 1231 penetrate into the inner cavity of the second surrounding section 712. The penetrating end 81 of the third terminal 8a penetrates into the insertion port of the first terminal 2a, and the penetrating end 81 of the fourth terminal 8b penetrates into the insertion port of the second terminal 2b. The top plate 511 is located at the mating surface 43 to lock the wire cover 4, the first main housing 12, and the second main housing 71. One end of the linear connecting object is connected to the first connecting end 21 and the other end penetrates out of the wire cover 4. The welding end 82 is welded to the circuit board. After the power is turned on, an electrical signal connection is achieved.

Claims

1. A high-voltage shielded electrical connector assembly, characterized in that, include: A plug connector, the plug connector comprising a first insulating body and a first terminal assembly installed in the first insulating body, the first terminal assembly comprising a first terminal and a second terminal of different sizes, a linear connection object passing through the first insulating body from a first surface of the first insulating body to connect to the first terminal and the second terminal, a wire cover detachably connected to the first insulating body and covering the first surface of the first insulating body, and a handle portion having an elastic portion hinged on the first insulating body; and A socket connector, the socket connector comprising a second insulating body and a second terminal assembly installed in the second insulating body, the second insulating body is connected to the first insulating body from the second surface of the first insulating body, the second terminal assembly is plugged into the first terminal assembly, and the handle is detachably connected to the second insulating body; The first insulating body comprises a first main shell, a rear cover and a front cover, a first mounting structure for a first connecting end of a first terminal assembly to pass through is formed in the first main shell, a first enclosure section with a hollow interior and an opening toward a wire cover is formed on the first surface of the first main shell, the rear cover is mounted in the first enclosure section, the handle is hinged on the first main shell, the wire cover is connected to the first main shell to block the open side of the first enclosure section; a second mounting structure for a linear connection object to pass through along a plugging direction to pass through the first mounting structure is formed on the rear cover, a wire sealing body for sealing the first enclosure section and located between the rear cover and the first mounting structure is provided in the first enclosure section and a third mounting structure for a linear connection object to pass through is provided on the wire sealing body; the front cover is detachably connected to the second surface of the first main shell, and a fourth mounting structure for a second connecting end of the first terminal assembly to pass through is provided on the front cover; On both sides of the first main housing along the X-axis, surrounding side plates are respectively formed extending along the plugging direction, and on both sides of the fourth mounting structure along the Y-axis, surrounding secondary side plates are formed extending along the plugging direction corresponding to between the two surrounding side plates, and the surrounding secondary side plates, the surrounding side plates, the fourth mounting structure and the first main housing are jointly formed to form a mounting groove that passes through the two surrounding side plates along the X-axis; A limiting structure for limiting the movement of the first terminal assembly along the plugging direction is inserted in the mounting groove, and the limiting structure is located between the first mounting structure and the fourth mounting structure; the limiting structure includes a main body and a limiting portion extending along the X-axis direction, and an arc-shaped curved arc is formed on both the first terminal and the second terminal, and the limiting portion is closed in the middle so that the limiting portion limits the movement of the first terminal assembly along the plugging direction; A limited stopper is convexly provided on one side of the main body away from the limiting part along the plug-in direction, the limiting part includes at least two extension arms integrally connected to the main body, and each of the extension arms is arranged in parallel and at equal intervals in the Y-axis direction, and a locking groove adapted to the limited part and for the limited part to pass through is formed between any two adjacent extension arms, the locking groove passes through along the X-axis direction toward the side away from the main body, the locking groove has a retracted part corresponding to the limited part, the locking groove has a first limiting area for limiting the limited part of the first terminal and a second limiting area for limiting the limited part of the second terminal along the X-axis direction, and a sliding protrusion and an anti-rotation protrusion are convexly provided on one side or both sides of each of the extension arms arranged along the plug-in direction; The two extension arms arranged on both sides of the outermost edge along the Y-axis direction are defined as edge extension arms, and both sides of the two edge extension arms arranged along the plug-in direction are convexly extended to form a blocking portion, and each blocking portion is convexly provided with a tooth portion on the side away from the main body portion, and a tooth groove portion is formed on the first main shell body corresponding to the tooth portion, which limits the limit structure from detaching from the first main shell body when the limit structure is installed on the first main shell body, and an avoidance hole is opened along the Y-axis direction at the position corresponding to the tooth portion on each blocking portion.

2. The high-voltage shielded electrical connector assembly according to claim 1, characterized in that: The outer side wall of the rear cover is provided with a first positioning structure for pressing against the inner wall of the first surrounding section to limit the movement of the rear cover in the Y-axis direction and the X-axis direction.

3. The high-voltage shielded electrical connector assembly according to claim 1, wherein: The second insulating body includes a second main shell, the second main shell has a fifth mounting structure for a penetration end of the second terminal assembly to pass through along the plug-in direction, a second enclosure section with a hollow interior and an opening toward the plug connector is formed on the first surface of the second main shell, the second enclosure section is sleeved on the first main shell and the front cover along the plug-in direction, a positioning portion is convexly provided on the first surface of the second main shell, and a positioning groove for the positioning portion to pass through is provided on the front cover; a third enclosure section with a hollow interior and an opening toward a side away from the plug connector is formed on the second surface of the second main shell, the penetration end of the second terminal assembly passes through the fifth mounting structure and penetrates into the fourth mounting structure to be plugged with the first terminal assembly, and a welding end of the second terminal assembly passes through the fifth mounting structure and the third enclosure section in sequence and then passes out of the third enclosure section.

4. The high-voltage shielded electrical connector assembly according to claim 3, wherein: A positioning plate is clamped on the open side of the third enclosed section, and a sixth mounting structure for the welding end of the second terminal assembly to pass through is provided on the positioning plate.

5. The high-voltage shielded electrical connector assembly according to claim 1, wherein: The handle portion includes a binding portion, the elastic portion is formed on the binding portion, a mating surface is formed on the side of the wire cover facing away from the first insulating body, a limiting locking portion is arranged on the side of the matching surface, the limiting locking portion restricts the binding portion when the binding portion rotates to the matching surface, the elastic portion approaches or abuts against the limiting locking portion at this time, and the restriction on the binding portion is released when the limiting locking portion is pressed, and the elastic portion is squeezed by the limiting locking portion when the restriction is released, and then deforms and rebounds to make the binding portion away from the matching surface; The first insulating body has a first side wall and a second side wall that are respectively adjacent to the first surface along the Y-axis direction. The first side wall and the second side wall are oppositely arranged. The handle portion further includes wing plates that extend respectively along the insertion direction from opposite sides of the binding portion. The middle portions of the two wing plates are respectively rotatably connected to the first side wall and the second side wall, so that the binding portion can be rotated to be close to or away from the mating surface; The binding portion includes a top plate connected to the two wing plates and the elastic portion. The elastic portion is in an arc-shaped strip and is integrally connected to one side edge of the top plate at both ends. The middle portion of the elastic portion protrudes toward the side away from the top plate to have a space for the elastic portion to deform between the elastic portion and the top plate; The limiting and locking portion includes a fixed block and an elastic clamping block that are respectively arranged on both side edges of the mating surface along the X-axis direction. A receiving groove for the elastic clamping block to penetrate into when being squeezed is formed on the outer wall of the wire cover located between the mating surface and the elastic clamping block. When the top plate rotates, it passes through and squeezes the elastic clamping block so that the top plate rotates to the mating surface. The elastic clamping block abuts against the top plate that has moved to the mating surface. The elastic portion approaches or abuts against the fixed block when the top plate moves to the mating surface.

6. The high-voltage shielded electrical connector assembly according to claim 5, wherein: Swing grooves for the wing plates to swing are respectively recessed on the first side wall and the second side wall. The side of the swing groove away from the mating surface is arranged in an open manner. A rotating shaft rotatably connected to the middle portion of the wing plate protrudes in the middle of the swing groove. The top plate rotates around the rotating shaft; First stop protrusions and second stop protrusions respectively protrude on both sides of the swing groove distributed along the X-axis direction. A first protrusion protrudes toward the insulating body on the inner side wall of the wing plate and on the side of the swing groove away from the wire cover. When the first protrusion approaches the first stop protrusion, the binding portion cooperates with the mating surface. When the first protrusion approaches the second stop protrusion, the binding portion is away from the mating surface; Support points that are in point contact with the outer wall of the wire cover when the wing plates rotate are arranged on the inner side walls of the two wing plates close to the binding portion.

7. The high-voltage shielded electrical connector assembly according to claim 6, wherein: Both sides of the two wing plates away from the top plate extend toward the side of the socket connector to form arc-shaped wing feet. The first protrusion is formed on the wing feet. A sliding hole that penetrates along the Y-axis direction and is arc-shaped with the rotating shaft as the center is formed on the wing feet. One end of the sliding hole penetrates through the wing feet along the arc direction to form an open end. A sliding block that penetrates into the sliding hole protrudes on the outer side wall of the socket connector opposite to the wing plate. When the top plate rotates away from the mating surface, the sliding block is located at the open end. When the top plate rotates to the mating surface, the sliding block is located at the other end.

8. The high-voltage shielded electrical connector assembly according to claim 7, characterized in that: The wire cover and the first insulating body are connected by a sliding connection structure. The sliding connection structure enables the wire cover to be loaded and unloaded on the first insulating body along the X-axis direction.

Images