Electrical connector, connector assembly, and method for manufacturing an electrical connector

Abstract

An electrical connector includes a first insulating body, a conductive unit, a cable, and a second insulating body. The first insulating body includes a main body. The cable includes a transverse portion fixed to the conductive unit and a longitudinal portion bent from the transverse portion. The second insulating body is assembled with the first insulating body, and the second insulating body includes a rear wall. The electrical connector includes a filling cavity located between the main body and the rear wall, and the connection between the cable and the conductive unit is located in the filling cavity. The rear wall includes an opening connected to the filling cavity and passing through the rear wall. The longitudinal portion of the cable at least partially corresponds to the opening to reduce the squeezing of the cable by the rear wall and improve reliability. The electrical connector also includes a filling block filled in the filling cavity. The present invention also discloses a method for manufacturing the aforementioned electrical connector.

Description

Technical Field

[0001] The present invention relates to an electric connector, a connector assembly and a method for manufacturing the electric connector, and belongs to the technical field of connectors. Background Art

[0002] Connector assemblies in related art typically include an electrical connector (e.g., a plug connector) and a mating connector (e.g., a receptacle connector). The electrical connector typically includes a first insulating body, an internal circuit board, a cable soldered to the internal circuit board, and a second insulating body. The internal circuit board and cable assembly are clamped between the first and second insulating bodies.

[0003] With the increasing demand for miniaturization of electrical connectors, controlling the overall length of the first and second insulating bodies after assembly is a crucial issue. Furthermore, in related art, to minimize this overall length, the second insulating body is designed to squeeze the cable as much as possible, significantly reducing the reliability of the electrical connector. Summary of the Invention

[0004] An object of the present invention is to provide an electrical connector, a connector assembly and a method for manufacturing the electrical connector with high reliability.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an electrical connector, comprising:

[0006] a first insulating body, the first insulating body comprising a main body and a docking space located at a front end of the main body;

[0007] a conductive unit passing through the main body, the conductive unit comprising an insulating support extending into the docking space, the insulating support being provided with a conductive sheet;

[0008] a cable, the cable comprising a transverse portion fixed to the conductive unit and a longitudinal portion bent from the transverse portion; and

[0009] a second insulating body, the second insulating body being assembled with the first insulating body, the second insulating body comprising a rear wall;

[0010] The electrical connector includes a filling cavity located between the main body and the rear wall in the front-to-back direction, wherein the connection between the cable and the conductive unit is located in the filling cavity; the rear wall includes an opening communicating with the filling cavity and penetrating the rear wall in the front-to-back direction, wherein at least a portion of the longitudinal portion of the cable corresponds to the opening;

[0011] The electrical connector further includes a filling block filled in the filling cavity, the filling block covers the connection between the cable and the conductive unit, and the filling block fills the opening to enclose the longitudinal portion of the cable corresponding to the opening within the electrical connector.

[0012] As a further improved technical solution of the present invention, the cable includes a bent portion located at the connection position of the transverse portion and the longitudinal portion; the rear wall includes an inner surface and an outer surface, the opening penetrates the inner surface and the outer surface along the front-to-back direction, and the rear wall includes a relief slope exposed in the opening and connected to the inner surface, and the relief slope is inclined in a direction close to the bent portion to form a flared opening.

[0013] As a further improved technical solution of the present invention, the cable includes several longitudinal portions arranged side by side along the left-right direction, and the width of the opening along the left-right direction is greater than or equal to the width occupied by these longitudinal portions along the left-right direction.

[0014] As a further improved technical solution of the present invention, the first insulating body includes a first side wall located on one side of the main body, a second side wall located on the other opposite side of the main body, and a top wall extending from the top of the main body in the front-to-back direction, and the docking space is defined by at least the first side wall, the second side wall, the main body, and the top wall;

[0015] The rear wall of the second insulating body includes an inner surface and an outer surface, and the opening penetrates the inner surface and the outer surface along the front-to-back direction.

[0016] As a further improved technical solution of the present invention, the first side wall and / or the second side wall includes a rear surface, a groove extending rearward through the rear surface, and a snap block protruding into the groove; the second insulating body includes a protrusion protruding forward from the rear wall to the inner surface, and the protrusion includes a locking groove; the protrusion is accommodated in the groove, and the snap block is clamped in the locking groove.

[0017] As a further improved technical solution of the present invention, the first side wall and / or the second side wall includes a rear surface and a locking hole extending backward through the rear surface; the second insulating body includes a hook portion protruding forward from the rear wall and extending forward from the inner surface, and the hook portion is fixed in the locking hole.

[0018] As a further improved technical solution of the present invention, the first insulating body includes a rear end face, the top wall includes a mounting protrusion protruding rearward from the rear end face, the mounting protrusion includes a mounting groove, the electrical connector includes a drawstring unlocking device installed in the mounting groove and a drawstring connected to the drawstring unlocking device; the mounting protrusion is provided with a first step surface located at the bottom of the mounting protrusion;

[0019] The rear wall includes a recessed groove recessed from the top of the rear wall and a second step surface located at the bottom of the recessed groove; the mounting protrusion is clamped in the recessed groove along the front-to-back direction, the first step surface is in contact with the second step surface, and the inner surface of the rear wall is in contact with the rear end surface of the first insulating body.

[0020] As a further improved technical solution of the present invention, the first insulating body includes a first extension portion extending from the top of the first side wall toward the second side wall, and a second extension portion extending from the top of the second side wall toward the first side wall, the first extension portion is perpendicular to the first side wall, the second extension portion is perpendicular to the second side wall, and the first extension portion and the second extension portion are both located above the top wall and at least partially overlap with the top wall in the vertical direction;

[0021] The first side wall and the first extension portion are both spaced apart from the top wall. The first insulating body includes a first vertical groove located between the first side wall and the top wall in the left-right direction, and a first horizontal groove located between the first extension portion and the top wall in the up-down direction. The first horizontal groove and the first vertical groove form a first L-shaped positioning groove.

[0022] The second side wall and the second extension portion are both spaced apart from the top wall. The first insulating body includes a second vertical groove located between the second side wall and the top wall in the left-right direction, and a second horizontal groove located between the second extension portion and the top wall in the up-down direction. The second horizontal groove and the second vertical groove constitute a second L-shaped positioning groove. The first L-shaped positioning groove and the second L-shaped positioning groove are both connected to the docking space.

[0023] As a further improved technical solution of the present invention, the first side wall and / or the second side wall is provided with an injection hole communicating with the filling cavity to form the filling block by injection molding.

[0024] As a further improved technical solution of the present invention, the conductive unit is a built-in circuit board.

[0025] As a further improved technical solution of the present invention, the bent portion at least partially extends into the opening, wherein the bent portion includes a rear end surface, and the rear end surface of the bent portion extends into the opening.

[0026] The present invention also discloses a connector assembly, which includes a docking connector and an electrical connector mating with the docking connector, wherein the docking connector includes:

[0027] A mating insulating body, the mating insulating body comprising a plug-in surface and a plug-in slot passing through the plug-in surface;

[0028] a plurality of docking conductive terminals, each of the docking conductive terminals comprising an elastic docking arm extending into the plug-in slot; and

[0029] A metal shielding shell, the metal shielding shell being fixed to the outside of the butting insulating body;

[0030] The electrical connector is the aforementioned electrical connector, wherein the mating insulating body is at least partially inserted into the mating space, the insulating support of the conductive unit is at least partially inserted into the insertion slot, and the elastic mating arm abuts against the conductive sheet.

[0031] The present invention also discloses a method for manufacturing an electrical connector, wherein the electrical connector is the aforementioned electrical connector, and the manufacturing method comprises the following steps:

[0032] S1, providing the conductive unit and the cable, and welding and fixing the cable to the conductive unit, wherein the cable includes a bending portion located at a connection position between the transverse portion and the longitudinal portion;

[0033] S2, providing the first insulating body, and installing the conductive unit into the first insulating body;

[0034] S3, providing a second insulating body, and assembling and fixing the second insulating body to the first insulating body, wherein the rear wall of the second insulating body includes an inner surface and an outer surface, the opening penetrates the inner surface and the outer surface along the front-to-back direction, and the bent portion at least partially protrudes rearwardly from the inner surface to extend into the opening;

[0035] S4, injecting an insulating material into the filling cavity to form the filling block, which fills the opening.

[0036] Compared with the prior art, the rear wall of the second insulating body of the present invention includes an opening that is connected to the filling cavity and passes through the rear wall along the front-to-back direction. The longitudinal portion of the cable at least partially corresponds to the opening. Such an arrangement can reduce the extrusion of the cable by the rear wall, thereby improving reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a three-dimensional schematic diagram of a connector assembly of the present invention in one embodiment.

[0038] Figure 2 yes Figure 1 3D exploded view of .

[0039] Figure 3 1 is a front view of the electrical connector of the present invention.

[0040] Figure 4 yes Figure 2 Rear view of the CEC connector.

[0041] Figure 5 yes Figure 2 Right side view of the CEC connector.

[0042] Figure 6 yes Figure 2 Left side view of the CEC connector.

[0043] Figure 7 yes Figure 2 Top view of the CEC connector.

[0044] Figure 8 yes Figure 2 Partial exploded view of the CEC connector.

[0045] Figure 9 yes Figure 8 Partial exploded view from another angle.

[0046] Figure 10 yes Figure 8 Further partially exploded perspective view.

[0047] Figure 11 yes Figure 10 Partial exploded view from another angle.

[0048] Figure 12 is to remove Figure 10 A partial exploded view of the second insulating body and the filling block.

[0049] Figure 13 yes Figure 12 Further partially exploded perspective view.

[0050] Figure 14 yes Figure 13 Partial exploded view from another angle.

[0051] Figure 15 The electrical connector of the present invention is not filled with insulating material and along Figure 3 Schematic diagram of the cross section along line AA.

[0052] Figure 16 yes Figure 15 A partial enlarged view of the middle frame portion B.

[0053] Figure 17 The electrical connector of the present invention is filled with insulating material and along Figure 3 Schematic diagram of the cross section along line AA.

[0054] Figure 18 yes Figure 17 A partial enlarged view of part C in the middle frame. DETAILED DESCRIPTION

[0055] The following exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. If there are several specific embodiments, the features of these embodiments can be combined with each other without conflict. When the description refers to the drawings, unless otherwise specified, the same numbers in different drawings represent the same or similar elements. The contents described in the following exemplary embodiments do not represent all embodiments consistent with the present invention; rather, they are merely examples of devices, products and / or methods consistent with some aspects of the present invention as described in the claims of the present invention.

[0056] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the scope of protection of the present invention. The singular forms "a", "an", "the" or "the" used in the specification and claims of the present invention are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0057] It should be understood that the words used in the specification and claims of the present invention, such as "first", "second" and similar words, do not indicate any order, quantity or importance, but are only used to distinguish the names of features. Similarly, "one" or "an" and similar words do not indicate a quantity limitation, but rather indicate the existence of at least one. Unless otherwise specified, the words "front", "back", "upper", "lower" and similar words that appear in the present invention are only for the convenience of description and are not limited to a specific position or a spatial orientation. Words such as "include" or "comprises" are open-ended expressions, meaning that the elements appearing before "include" or "comprises" include the elements appearing after "include" or "comprises" and their equivalents, which does not exclude that the elements appearing before "include" or "comprises" may also include other elements. If "several" appears in the present invention, it means two or more.

[0058] Please refer to Figure 1 as well as Figure 2As shown, the present invention discloses a connector assembly comprising a docking connector 100 and an electrical connector 200 mating with the docking connector 100. In the illustrated embodiment of the present invention, the docking connector 100 is an SFP (Small Form-Factor Pluggable) receptacle connector, and the electrical connector 200 is an SFP plug connector. Of course, those skilled in the art will appreciate that the docking connector 100 and the electrical connector 200 may also be other types of electrical connectors.

[0059] Please refer to Figure 2 As shown, the mating connector 100 includes an insulating mating body 1, a plurality of conductive mating terminals 2, and a metal shielding housing 3. The insulating mating body 1 includes a mating surface 11 and a mating slot 10 extending through the mating surface 11. Specifically, the insulating mating body 1 includes a top wall 12, a first side wall 13, a second side wall 14 disposed opposite the first side wall 13, and a bottom wall 15 disposed opposite the top wall 12. The top wall 12, the first side wall 13, the second side wall 14, and the bottom wall 15 form the mating slot 10.

[0060] The docking conductive terminals 2 include elastic docking arms 21 extending into the insertion slot 10. In one embodiment of the present invention, the docking conductive terminals 2 are arranged in two rows, i.e., the elastic docking arms 21 are arranged in two rows, both protruding into the insertion slot 10.

[0061] The metal shielding shell 3 includes an upper wall 31 located at the upper end of the top wall portion 12, a first side end wall 32 bent downward from one side of the upper wall 31, and a second side end wall 33 bent downward from the other opposite side of the upper wall 31. The docking connector 100 includes a accommodating cavity 30 located between the upper wall 31 and the top wall portion 12 in the vertical direction. The upper wall 31 includes two locking holes 311 spaced apart in the left-right direction for locking with the electrical connector 200. The first side end wall 32 corresponds to the first side wall portion 13, and the second side end wall 33 corresponds to the second side wall portion 14. The top wall portion 12 and the first side end wall 32 are jointly provided with a first L-shaped positioning protrusion 341 protruding from the plug-in surface 11, and the top wall portion 12 and the second side end wall 33 are jointly provided with a second L-shaped positioning protrusion 342 protruding from the plug-in surface 11. The first L-shaped positioning tab 341 and the second L-shaped positioning tab 342 are respectively located at the upper left corner and the upper right foot of the metal shielding shell 3. The first L-shaped positioning tab 341 and the second L-shaped positioning tab 342 are used to be inserted into the electrical connector 200 for positioning.

[0062] Please refer to Figures 3 to 14 As shown, the electrical connector 200 includes a first insulating body 4, a conductive unit, a cable 6 fixed to the conductive unit, a second insulating body 7 mating with the first insulating body 4, a drawstring unlocking device 8 mounted on the first insulating body 4, and a drawstring 9 connected to the drawstring unlocking device 8. In the illustrated embodiment of the present invention, the conductive unit is a built-in circuit board 5. Of course, in other embodiments, the conductive unit may also be a conductive terminal, etc.

[0063] Please combine Figures 12 to 14 As shown, the first insulating body 4 includes a main body 43, a first sidewall 41 located on one side of the main body 43, a second sidewall 42 located on the opposite side of the main body 43, a top wall 44 extending from the top of the main body 43 in the front-to-back direction, a docking space 401 located at the front end of the main body 43, and a receiving space 402 located at the rear end of the main body 43. The docking space 401 is defined by at least the first sidewall 41, the second sidewall 42, the main body 43, and the top wall 44. The receiving space 402 is defined by at least the first sidewall 41, the second sidewall 42, the main body 43, and the top wall 44. The docking space 401 and the receiving space 402 are separated in the front-to-back direction by the main body 43. The main body 43 includes a slot 431 extending through the main body 43, which connects the docking space 401 and the receiving space 402, thereby facilitating the insertion of the built-in circuit board 5.

[0064] The first sidewall 41 and / or the second sidewall 42 includes a rear surface 451, a groove 452 extending rearward through the rear surface 451, a latch block 453 protruding outward into the groove 452, and a locking hole 454 extending rearward through the rear surface 451. Each of the first sidewall 41 and the second sidewall 42 is provided with a first latch block 455 protruding from its inner surface into the accommodating space 402, a second latch block 456 located below the first latch block 455, and a slot 457 located vertically between the first latch block 455 and the second latch block 456. The slot 457 is used to position the built-in circuit board 5.

[0065] The top wall 44 of the first insulating body 4 includes a rear end face 441, and the top wall 44 includes a mounting protrusion 442 that protrudes rearward from the rear end face 441. The mounting protrusion 442 includes a mounting groove 4421 that penetrates rearward. The drawstring unlocking device 8 is installed in the mounting groove 4421. In the illustrated embodiment of the present invention, the rear end face 441 and the rear surface 451 are located in the same vertical plane. The mounting protrusion 442 is provided with a plurality of first step surfaces 4422 located at the bottom of the mounting protrusion 442. By providing the first step surface 4422 instead of a plane, the wall thickness at various positions on the mounting protrusion 442 can be flexibly adjusted to avoid structural strength problems caused by too thin wall thickness.

[0066] In addition, the first insulating body 4 includes a first extension portion 461 extending from the top of the first side wall 41 toward the second side wall 42, and a second extension portion 462 extending from the top of the second side wall 42 toward the first side wall 41. In the illustrated embodiment of the present invention, the first extension portion 461 is perpendicular to the first side wall 41, and the second extension portion 462 is perpendicular to the second side wall 42. The first extension portion 461 and the second extension portion 462 are both located above the top wall 44 and at least partially overlap with the top wall 44 in the vertical direction. Figure 3 As shown, in the illustrated embodiment of the present invention, the first sidewall 41 and the first extension 461 are both spaced apart from the top wall 44. The first insulating body 4 includes a first vertical groove 471 located between the first sidewall 41 and the top wall 44 in the left-right direction, and a first horizontal groove 472 located between the first extension 461 and the top wall 44 in the up-down direction. The first horizontal groove 471 and the first vertical groove 472 form a first L-shaped positioning groove 473. Similarly, the second sidewall 42 and the second extension 462 are both spaced apart from the top wall 44. The first insulating body 4 includes a second vertical groove 474 located between the second sidewall 42 and the top wall 44 in the left-right direction, and a second horizontal groove 475 located between the second extension 462 and the top wall 44 in the up-down direction. The second horizontal groove 474 and the second vertical groove 475 form a second L-shaped positioning groove 476. The first L-shaped positioning groove 473 and the second L-shaped positioning groove 476 are both connected to the docking space 401. The first L-shaped positioning groove 473 and the second L-shaped positioning groove 476 are used to accommodate the first L-shaped positioning protrusion 341 and the second L-shaped positioning protrusion 342 of the docking connector 100 to reduce the shaking when the docking connector 100 and the electrical connector 200 are plugged together, thereby improving the stability of the docking between the two.

[0067] Please combine Figure 12 as well as Figure 13 As shown, the built-in circuit board 5 includes an insulating support member 51 that passes through the slot 432 and extends forward into the docking space 401, and a mounting portion 52 located at the rear end of the insulating support member 51. In the illustrated embodiment of the present invention, the insulating support member 51 is a tongue plate. The mounting portion 52 is retained in the slot 457 for securement. In one embodiment of the present invention, the insulating support member 51 is provided with a docking portion 511, which is a plurality of conductive plates arranged at intervals. In the illustrated embodiment of the present invention, the docking portions 511 are provided on both the upper and lower surfaces of the insulating support member 51. The docking portions 511 are exposed in the docking space 401 to contact the elastic docking arms 21 of the docking conductive terminals 2. The upper and lower surfaces of the mounting portion 52 are respectively provided with a plurality of welding plates 521 for welding and securing the cable 6. In the illustrated embodiment of the present invention, the width of the mounting portion 52 in the left-right direction is greater than the width of the insulating support member 51 in the left-right direction. With this arrangement, when the built-in circuit board 5 is inserted into the slot 432, the mounting portion 52 can be blocked by the main body 43, thereby acting as a position limiter. Furthermore, the wider mounting portion 52 facilitates the arrangement of the welding tabs 521, for example, by appropriately increasing the spacing between two adjacent welding tabs 521, thereby reducing signal crosstalk and facilitating welding with the cable 6.

[0068] In the illustrated embodiment of the present invention, there are multiple cables 6 arranged in two layers, inner and outer. Each cable 6 is roughly L-shaped, with the outer layer comprising a transverse portion 61 secured to the internal circuit board 5, a longitudinal portion 62 bent from the transverse portion 61, and a bent portion 63 located at the junction of the transverse portion 61 and the longitudinal portion 62. The transverse portion 61 is used for welding to the welding tab 521, and the bent portion 63 is adjacent to the transverse portion 61.

[0069] The second insulating body 7 includes a rear wall 71, which includes an inner surface 711, an outer surface 712, and an opening 713 extending through the inner and outer surfaces 711 and 712 in the front-to-back direction. The longitudinal portions 62 of the cables 6 located in the outer layer are arranged side by side in the left-right direction. The width of the opening 713 in the left-right direction is greater than or equal to the width occupied by the longitudinal portions 62 in the left-right direction. In other words, the longitudinal portions 62 of the cables 6 located in the outer layer are completely exposed in the left-to-right direction within the opening 713.

[0070] The second insulating body 7 also includes a protrusion 72 that protrudes forward from the rear wall 71 onto the inner surface 711. The protrusion 72 includes a locking groove 721. When the first insulating body 4 and the second insulating body 7 are assembled together, the protrusion 72 of the second insulating body 7 is received in the groove 452 of the first insulating body 4, and the locking block 453 of the first insulating body 4 is retained in the locking groove 721 of the second insulating body 7. Furthermore, the second insulating body 7 also includes a hook 73 that protrudes forward from the rear wall 71 onto the inner surface 711. The hook 73 is secured in the locking hole 454.

[0071] The rear wall 71 includes a recessed groove 714 recessed from the top of the rear wall 71 and a second stepped surface 7141 located at the bottom of the recessed groove 714. When the first insulating body 4 and the second insulating body 7 are assembled together, the mounting protrusion 442 is retained in the recessed groove 714 along the front-to-back direction, the first stepped surface 4422 is aligned with the second stepped surface 7141, and the inner surface 711 of the rear wall 71 is aligned with the rear end surface 441 of the first insulating body 4.

[0072] Please combine Figures 15 to 18 As shown, in the illustrated embodiment of the present invention, the rear wall 71 includes a relief slope 715 exposed in the opening 713 and connected to the inner surface 711. The relief slope 715 is inclined toward the direction close to the bend 63, so that the opening 713 is expanded near the bend 63, so that the bend 63 at least partially protrudes backward from the inner surface 711 to extend into the opening 713 before injection molding. The bend 63 includes a rear end surface 631, which extends backward into the opening 713. Please refer to the following figure. Figure 15 as well as Figure 16 As shown, by making the bending portion 63 at least partially extend into the opening 713, on the one hand, the wall thickness of the rear wall 71 can be fully utilized to shorten the length of the first insulating body 4 and the second insulating body 7 along the front-to-back direction after assembly; on the other hand, by providing the opening 713, the extrusion of the cable 6 by the rear wall 71 is reduced, thereby reducing the loosening or detachment of the welding position between the transverse portion 61 and the 521 caused by the extrusion of the transverse portion 61 and / or the bending portion 63 of the cable 6, thereby improving the reliability of the electrical connector 200.

[0073] Please combine Figures 15 to 18As shown, the electrical connector 200 includes a filling cavity 48 located between the main body 43 and the rear wall 71 along the front-to-back direction. The connection between the cable 6 and the built-in circuit board 5 (e.g., the welding position between the transverse portion 61 and the 521) is located in the filling cavity 48. The opening 713 is in communication with the filling cavity 48.

[0074] Please combine Figure 17 as well as Figure 18 As shown, in the illustrated embodiment of the present invention, the electrical connector 200 further includes a filling block 49 filled in the filling cavity 48, and the filling block 49 covers the connection between the cable 6 and the built-in circuit board 5 to improve the connection strength. In addition, the filling block 49 fills the opening 713 to enclose the longitudinal portion 62 of the cable 6 corresponding to the opening 713 within the electrical connector 200. The first side wall 41 and / or the second side wall 42 are provided with injection holes 418, 428 connected to the filling cavity 48 to form the filling block 49 by injection molding. Of course, those skilled in the art will understand that the injection hole can also be formed on the first insulating body 4, or the injection hole can be partially formed on the first insulating body 4 and partially formed on the second insulating body 7.

[0075] When the electrical connector 200 is docked with the docking connector 100, the docking insulating body 1 is at least partially inserted into the docking space 401, the insulating support member 51 of the built-in circuit board 5 is at least partially inserted into the plug-in slot 10, and the elastic docking arm 21 abuts against the conductive sheet to achieve electrical conduction.

[0076] Please combine Figure 12 As shown, in one embodiment of the present invention, the drawstring unlocking device 8 is made of metal material and is roughly U-shaped. The drawstring unlocking device 8 includes a fixing portion 81, a locking piece 82 bent upward and backward from the front end of the fixing portion 81, and a buckling portion 83 extending upward and backward from the rear end of the locking piece 82. The drawstring 9 is fastened to the buckling portion 83. The locking piece 82 includes two upwardly protruding locking protrusions 821, and the buckling portion 83 protrudes upward from the locking protrusions 821. Since the drawstring unlocking device 8 is roughly U-shaped, the locking piece 82 can be deformed downward under the pull of the drawstring 9. The locking protrusions 821 are used to lock with the locking hole 311 of the docking connector 100. In the illustrated embodiment of the present invention, there are two locking protrusions 821 and they are arranged side by side on the left and right. Preferably, the locking protrusions 821 are punched from the locking piece 82.

[0077] The present invention also discloses a method for manufacturing the aforementioned electrical connector 200, which includes the following steps:

[0078] S1, providing the conductive unit (e.g., the built-in circuit board 5) and the cable 6, and welding the cable 6 to the conductive unit, wherein the cable 6 includes a bent portion 63 located at the connection position between the transverse portion 61 and the longitudinal portion 62;

[0079] S2, providing the first insulating body 4, and installing the built-in circuit board 5 into the first insulating body 4;

[0080] S3. Provide a second insulating body 7 and assemble and secure the second insulating body 7 to the first insulating body 4. The rear wall 71 of the second insulating body 7 includes an inner surface 711 and an outer surface 712. The opening 713 extends through the inner surface 711 and the outer surface 712 along the front-to-back direction. The bent portion 63 at least partially protrudes rearward from the inner surface 711 to extend into the opening 713.

[0081] S4 , injecting an insulating material into the filling cavity 48 to form the filling block 49 , and the filling block 49 fills the opening 713 .

[0082] Specifically, in step S3, the rear wall 71 includes a relief slope 715 exposed in the opening 713 and connected to the inner surface 711, and the relief slope 715 is inclined toward the direction close to the bending portion 63 to facilitate the rear end surface 631 of the bending portion 63 to extend into the opening 713.

[0083] Compared with the prior art, the rear wall 71 of the second insulating body 7 of the present invention includes an opening 713 that is connected to the filling cavity 48 and passes through the rear wall 71 along the front-to-back direction. The longitudinal portion 62 of the cable 6 at least partially corresponds to the opening 713. Such a configuration can reduce the extrusion of the cable 6 by the rear wall 71, thereby improving reliability.

[0084] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. The understanding of the present invention should be based on those skilled in the art. Although this specification describes the present invention in detail with reference to the above embodiments, those skilled in the art should understand that those skilled in the art can still modify or make equivalent substitutions to the present invention, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention should be included within the scope of the claims of the present invention.

Claims

1. An electrical connector, comprising: A first insulating body (4), the first insulating body (4) comprising a main body (43) and a docking space (401) located at a front end of the main body (43); a conductive unit, the conductive unit passing through the main body (43), the conductive unit comprising an insulating support member (51) extending into the docking space (401), the insulating support member (51) being provided with a conductive sheet; A cable (6), the cable (6) comprising a transverse portion (61) fixed to the conductive unit and a longitudinal portion (62) bent from the transverse portion (61); and a second insulating body (7), the second insulating body (7) being assembled with the first insulating body (4), the second insulating body (7) comprising a rear wall (71); The electrical connector is characterized in that the electrical connector includes a filling cavity (48) located between the main body (43) and the rear wall (71) in the front-to-back direction, and the connection between the cable (6) and the conductive unit is located in the filling cavity (48); the rear wall (71) includes an opening (713) that is connected to the filling cavity (48) and passes through the rear wall (71) in the front-to-back direction, and the longitudinal portion (62) of the cable (6) at least partially corresponds to the opening (713); The electrical connector further comprises a filling block (49) filled in the filling cavity (48) by injection molding, and the filling block (49) is combined with the second insulating body (7) into a whole after injection molding; the filling block (49) covers the connection between the cable (6) and the conductive unit, and the filling block (49) fills the opening (713) to enclose the longitudinal portion (62) of the cable (6) corresponding to the opening (713) in the electrical connector.

2. The electrical connector according to claim 1, wherein: The cable (6) includes a bent portion (63) located at a connection position between the transverse portion (61) and the longitudinal portion (62); the rear wall (71) includes an inner surface (711) and an outer surface (712); the opening (713) penetrates the inner surface (711) and the outer surface (712) along the front-to-back direction; the rear wall (71) includes a relief bevel (715) exposed in the opening (713) and connected to the inner surface (711); the relief bevel (715) is inclined in a direction close to the bent portion (63) to form a flared opening.

3. The electrical connector according to claim 1, wherein: The cable (6) comprises a plurality of longitudinal portions (62) arranged side by side in a left-right direction, and the width of the opening (713) in the left-right direction is greater than or equal to the width occupied by the longitudinal portions (62) in the left-right direction.

4. The electrical connector according to claim 1, wherein: The first insulating body (4) comprises a first side wall (41) located on one side of the main body (43), a second side wall (42) located on the other opposite side of the main body (43), and a top wall (44) extending from the top of the main body (43) along the front-to-back direction, and the docking space (401) is defined by at least the first side wall (41), the second side wall (42), the main body (43), and the top wall (44); The rear wall (71) of the second insulating body (7) comprises an inner surface (711) and an outer surface (712), and the opening (713) penetrates the inner surface (711) and the outer surface (712) along the front-to-back direction.

5. The electrical connector according to claim 4, wherein: The first side wall (41) and / or the second side wall (42) comprises a rear surface (451), a groove (452) extending rearward through the rear surface (451), and a snap block (453) protruding into the groove (452); the second insulating body (7) comprises a protrusion (72) protruding forward from the rear wall (71) to the inner surface (711), the protrusion (72) comprising a snap groove (721); the protrusion (72) is received in the groove (452), and the snap block (453) is held in the snap groove (721).

6. The electrical connector according to claim 4, wherein: The first side wall (41) and / or the second side wall (42) includes a rear surface (451) and a locking hole (454) extending rearward through the rear surface (451); the second insulating body (7) includes a hook portion (73) protruding forward from the rear wall (71) to the inner surface (711), and the hook portion (73) is fixed in the locking hole (454).

7. The electrical connector according to claim 4, wherein: The first insulating body (4) includes a rear end face (441), the top wall (44) includes a mounting protrusion (442) protruding backward from the rear end face (441), the mounting protrusion (442) includes a mounting groove (4421), and the electrical connector includes a drawstring unlocking device (8) installed in the mounting groove (4421) and a drawstring (9) connected to the drawstring unlocking device (8); the mounting protrusion (442) is provided with a first step surface (4422) located at the bottom of the mounting protrusion (442); The rear wall (71) includes a recessed groove (714) recessed from the top of the rear wall (71) and a second step surface (7141) located at the bottom of the recessed groove (714); the mounting protrusion (442) is clamped in the recessed groove (714) along the front-to-back direction, the first step surface (4422) is in contact with the second step surface (7141), and the inner surface (711) of the rear wall (71) is in contact with the rear end surface (441) of the first insulating body (4).

8. The electrical connector according to claim 4, wherein: The first insulating body (4) comprises a first extension portion (461) extending from the top of the first side wall (41) and toward the second side wall (42), and a second extension portion (462) extending from the top of the second side wall (42) and toward the first side wall (41), the first extension portion (461) being perpendicular to the first side wall (41), the second extension portion (462) being perpendicular to the second side wall (42), and the first extension portion (461) and the second extension portion (462) being both located above the top wall (44) and both at least partially overlapping with the top wall (44) in the vertical direction; The first side wall (41) and the first extension portion (461) are both spaced apart from the top wall (44); the first insulating body (4) includes a first vertical groove (471) located between the first side wall (41) and the top wall (44) in the left-right direction, and a first horizontal groove (472) located between the first extension portion (461) and the top wall (44) in the up-down direction; the first horizontal groove (472) and the first vertical groove (471) form a first L-shaped positioning groove (473); The second side wall (42) and the second extension portion (462) are both spaced apart from the top wall (44); the first insulating body (4) includes a second vertical groove (474) located between the second side wall (42) and the top wall (44) in the left-right direction, and a second horizontal groove (475) located between the second extension portion (462) and the top wall (44) in the up-down direction; the second horizontal groove (475) and the second vertical groove (474) form a second L-shaped positioning groove (476); the first L-shaped positioning groove (473) and the second L-shaped positioning groove (476) are both connected to the docking space (401).

9. The electrical connector according to claim 4, wherein: The first side wall (41) and / or the second side wall (42) are provided with injection holes (418, 428) communicating with the filling cavity (48) so as to form the filling block (49) by injection molding.

10. The electrical connector according to claim 1, wherein: The conductive unit is a built-in circuit board (5).

11. The electrical connector according to claim 2, wherein: The bending portion (63) at least partially extends into the opening (713), wherein the bending portion (63) includes a rear end surface (631), and the rear end surface (631) of the bending portion (63) extends into the opening (713).

12. A connector assembly, characterized in that: The invention comprises a docking connector (100) and an electrical connector (200) matched with the docking connector (100), wherein the docking connector (100) comprises: A mating insulating body (1), the mating insulating body (1) comprising a plug-in surface (11) and a plug-in slot (10) penetrating the plug-in surface (11); A plurality of docking conductive terminals (2), each of the docking conductive terminals (2) comprising an elastic docking arm (21) extending into the plug-in slot (10); and A metal shielding shell (3), the metal shielding shell (3) being fixed to the outside of the butting insulating body (1); The electrical connector (200) is an electrical connector according to any one of claims 1 to 11, wherein the docking insulating body (1) is at least partially inserted into the docking space (401), the insulating support member (51) of the conductive unit is at least partially inserted into the plug-in slot (10), and the elastic docking arm (21) abuts against the conductive sheet.

13. A method for manufacturing an electrical connector, characterized in that: The electrical connector is the electrical connector according to any one of claims 1 to 11, and the manufacturing method comprises the following steps: S1, providing the conductive unit and the cable (6), and welding and fixing the cable (6) to the conductive unit, wherein the cable (6) includes a bending portion (63) located at a connection position between the transverse portion (61) and the longitudinal portion (62); S2, providing the first insulating body (4), and installing the conductive unit into the first insulating body (4); S3, providing the second insulating body (7), assembling and fixing the second insulating body (7) and the first insulating body (4) together, wherein the rear wall (71) of the second insulating body (7) includes an inner surface (711) and an outer surface (712), the opening (713) penetrates the inner surface (711) and the outer surface (712) along the front-to-back direction, and the bent portion (63) at least partially protrudes backward from the inner surface (711) to extend into the opening (713); S4, injecting an insulating material into the filling cavity (48) to form the filling block (49), wherein the filling block (49) fills the opening (713).

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