Electrical connector

Abstract

An electrical connector includes an insulating body and a connector assembly. The insulating body includes a first insulating body and a second insulating body. The first insulating body includes a first mating surface and a first receiving space penetrating through the first mating surface. The second insulating body includes a second mating surface and a second receiving space penetrating through the second mating surface. The second mating surface protrudes from the first mating surface. The first receiving space surrounds the second insulating body. The connector assembly includes a connector terminal and a cable electrically connected with the connector terminal. The connector terminal penetrates through the first insulating body and the second insulating body to extend out of the second mating surface. In this way, the connector terminal of the electrical connector of the embodiment at least partially protrudes out of the outermost surface, which facilitates the user to observe during mating, thereby improving the accuracy of the mating.

Description

Technical Field

[0001] This invention relates to an electrical connector, belonging to the field of connector technology. Background Technology

[0002] Electrical connectors in related technologies include an insulating body and a connector assembly mounted on the insulating body. The insulating body has a mating space. The connector assembly includes a connector head and a cable electrically connected to the connector head. The connector head is located in the mating space. However, when a user mates the electrical connector with a mating connector, alignment is difficult because the precise position of the connector head cannot be observed, thus reducing the user experience.

[0003] Therefore, there is still room for improvement in the electrical connectors of related technologies. Summary of the Invention

[0004] One embodiment of the present invention aims to provide an electrical connector with an improved structure.

[0005] One embodiment of the present invention adopts the following technical solution: an electrical connector, comprising: An insulating body, comprising a first insulating body and a second insulating body, the first insulating body including a first mating surface and a first receiving space penetrating the first mating surface, the second insulating body including a second mating surface and a second receiving space penetrating the second mating surface, the second mating surface protruding from the first mating surface, and the first receiving space surrounding the second insulating body; and A connector assembly including a connector head and a cable electrically connected to the connector head, the connector head extending through a first insulating body and a second insulating body to protrude from a second mating surface.

[0006] As a further improved technical solution of the embodiments of the present invention, the first insulating body and the second insulating body are separately disposed.

[0007] As a further improved technical solution of the embodiment of the present invention, the first insulating body includes an outer peripheral wall and an extended protrusion located in the outer peripheral wall, the first receiving space surrounds the extended protrusion, and the extended protrusion is provided with a front end face and a first through groove penetrating the front end face. The second insulating body includes a partition plate, a first space located on one side of the partition plate, and a second space located on the other side of the partition plate. The partition plate is provided with a second through groove connecting the first space and the second space. The extended protrusion is at least partially housed in the second space, and the connector passes through the first through slot and the second through slot.

[0008] As a further improved technical solution of the embodiment of the present invention, the first insulating body includes a first end face located at the rear end of the extended protrusion, and the second insulating body includes a second end face opposite to the second mating surface. The electrical connector further includes a sealing ring fitted onto the extended protrusion, the sealing ring being exposed in the first receiving space, and the sealing ring being abutted between the first end face and the second end face.

[0009] As a further improved technical solution of the embodiment of the present invention, the extended protrusion further includes a first positioning groove that penetrates the front end face and is located on one side of the first through groove, and a second positioning groove that penetrates the front end face and is located on the other side of the first through groove. The second insulating body includes a first positioning protrusion connected to one side of the partition plate and a second positioning protrusion connected to the other side of the partition plate. The first positioning protrusion is inserted into and fixed in the first positioning groove, and the second positioning protrusion is inserted into and fixed in the second positioning groove.

[0010] As a further improved technical solution of the embodiment of the present invention, the connector includes a mating port, and the mating port extends out of the second mating surface by a distance d1, wherein 0.5mm≤d1≤4.5mm.

[0011] As a further improved technical solution of the embodiment of the present invention, the distance between the first mating surface and the second mating surface is d2, where 2d1≤d2≤5d1.

[0012] As a further improved technical solution of the embodiments of the present invention, the connector assembly includes a built-in circuit board, one end of which is electrically connected to the connector connector and the other end of which is electrically connected to the cable.

[0013] As a further improved technical solution of the embodiment of the present invention, the connector includes an insulating block, a plurality of first conductive terminals disposed in the insulating block, a plurality of second conductive terminals disposed in the insulating block, and a metal shell covering the insulating block, wherein the metal shell at least partially extends out of the second mating surface.

[0014] As a further improved technical solution of the embodiment of the present invention, the insulating block is provided with a receiving groove, the first conductive terminal includes a first mating portion extending into the receiving groove and located on one side of the receiving groove and a first tail portion extending out of the insulating block; the second conductive terminal includes a second mating portion extending into the receiving groove and located on the other side of the receiving groove and a second tail portion extending out of the insulating block; the cladding metal shell is sleeved on the insulating block; the rear end of the cladding metal shell is provided with a positioning groove, the built-in circuit board is at least partially engaged and positioned in the positioning groove, and the built-in circuit board is located between the first tail portion and the second tail portion.

[0015] As a further improved technical solution of the embodiments of the present invention, the connector assembly includes a molded block injection molded on the built-in circuit board, part of the covered metal housing and part of the cable.

[0016] As a further improved technical solution of the embodiment of the present invention, the molding block includes a first injection molding block, a second injection molding block and a third injection molding block; the first injection molding block is injection molded at the welding positions of the first tail and the second tail with the built-in circuit board; the second injection molding block is injection molded at the welding positions of the built-in circuit board and the cable. The connector assembly includes a metal shielding housing, which includes a first metal housing and a second metal housing that engages with the first metal housing. The first metal housing and the second metal housing enclose the first injection-molded block and the second injection-molded block, and both the first metal housing and the second metal housing are in contact with the enclosing metal housing. The third injection molded block is injection molded onto the first metal shell and the second metal shell.

[0017] As a further improved technical solution of the embodiment of the present invention, the first insulating body includes an installation space; The cable includes a first part, a second part, and a bent portion connecting the first part and the second part; the first part extends along a first direction, the second part extends along a second direction, and the first direction is perpendicular to the second direction; The electrical connector further includes a fixing block that is at least partially fixed to the bent portion, the fixing block being housed within the mounting space.

[0018] As a further improved technical solution of the embodiment of the present invention, the fixing block is injection molded on the first part, the bending part and the second part.

[0019] As a further improved technical solution of the embodiment of the present invention, the fixing block includes a first fixing block and a second fixing block, wherein the first fixing block is injection molded on the first part, the bent part and the second part; and the second fixing block is then injection molded on the first fixing block.

[0020] As a further improved technical solution of the embodiment of the present invention, the first fixing block is also provided with a plurality of slots penetrating its outer surface, and the second fixing block is partially embedded in the slots during molding.

[0021] As a further improved technical solution of the embodiment of the present invention, the electrical connector further includes a first cover and a second cover that is fastened to the first cover; The first cover includes a first main body, a first extension extending from one side of the first main body toward the second cover, a second extension extending from the other side of the first main body toward the second cover, a first rear cover connected to the bottom of the first main body, and a first protrusion extending from the first rear cover toward the second cover; the first extension is provided with a first locking hole, the second extension is provided with a second locking hole, and the first protrusion is provided with a third locking hole. The second cover includes a second main body and a second rear cover connected to the bottom of the second main body. One side of the second main body has a first groove and a first locking protrusion located in the first groove. The other side of the second main body has a second groove and a second locking protrusion located in the second groove. The second rear cover has a third groove and a third locking protrusion located in the third groove. The first extension is at least partially located in the first groove, and the first locking protrusion is secured in the first locking hole. The second extension is at least partially located in the second groove, and the second locking protrusion is secured in the second locking hole. The first protrusion is at least partially located in the third groove, and the third locking protrusion is secured in the third locking hole.

[0022] As a further improved technical solution of the embodiment of the present invention, the first rear cover and / or the second rear cover are provided with abutting protrusions on the inner surface, and the abutting protrusions abut against the fixing block.

[0023] As a further improved technical solution of the embodiment of the present invention, the fixing block is provided with a slot that penetrates the fixing block along the second direction, and the bent portion is at least partially located in the slot.

[0024] As a further improved technical solution of the embodiment of the present invention, the fixing block is also provided with a first positioning rib and a second positioning rib that protrude inward from both sides into the slot, and the first positioning rib and the second positioning rib are configured to position the bent portion.

[0025] As a further improved technical solution of the embodiment of the present invention, the fixing block is close to the first part, and the electrical connector further includes a collar sleeved on the second part.

[0026] As a further improved technical solution of the embodiment of the present invention, the electrical connector further includes a first cover and a second cover that is fastened to the first cover; The first cover includes a first main body portion and a first covering portion extending from the first main body portion; The second cover includes a second main body portion and a second covering portion extending from the second main body portion; The first covering part and the second covering part together wrap around the collar.

[0027] As a further improved technical solution of the embodiment of the present invention, the first covering part includes a first protruding rib and a first retaining groove located inside the first protruding rib, and the second covering part includes a second protruding rib and a second retaining groove located inside the second protruding rib. The first retaining groove and the second retaining groove together form an annular groove. The collar includes an annular protrusion that is engaged in the annular groove to prevent the collar from moving along the second direction.

[0028] The electrical connector in this embodiment of the invention includes an insulating body, which comprises a first insulating body and a second insulating body. The first insulating body includes a first mating surface and a first receiving space penetrating the first mating surface. The second insulating body includes a second mating surface and a second receiving space penetrating the second mating surface. The second mating surface protrudes from the first mating surface. The connector assembly includes a connector connector and a cable electrically connected to the connector connector. The connector connector passes through the first insulating body and the second insulating body to extend and protrude from the second mating surface. With this configuration, the connector connector of the electrical connector in this embodiment of the invention at least partially protrudes from the outermost surface, facilitating observation by the user during mating and thus improving mating accuracy. Attached Figure Description

[0029] Figure 1 This is a perspective view of the electrical connector of the present invention in a first embodiment; Figure 2 yes Figure 1 A three-dimensional diagram from another angle; Figure 3 yes Figure 1 The main view; Figure 4 yes Figure 1 The right view; Figure 5 yes Figure 1 Partial exploded 3D diagram; Figure 6 yes Figure 5 Partial 3D exploded view from another angle; Figure 7 yes Figure 5 Further partial exploded view; Figure 8 yes Figure 7 Partial 3D exploded view from another angle; Figure 9 yes Figure 7 An exploded perspective view of the insulating body, the first cover, and the second cover. Figure 10 yes Figure 9 A three-dimensional exploded view from another angle; Figure 11 yes Figure 7 An exploded 3D view of the fixing block and sealing gasket in the middle; Figure 12 yes Figure 11 A three-dimensional exploded view from another angle; Figure 13 yes Figure 7 An exploded 3D view of the cables, connectors, metal housing, and several molded blocks in the design. Figure 14 yes Figure 13 Partial 3D exploded view from another angle; Figure 15 It is a partial exploded 3D view of the cable, connector, internal circuit board and several molded blocks; Figure 16 yes Figure 15 Partial 3D exploded view from another angle; Figure 17 yes Figure 15 An exploded 3D view of the connector and the built-in circuit board. Figure 18 yes Figure 17 A three-dimensional exploded view from another angle; Figure 19 It is along Figure 1 Schematic diagram of the cross section of the middle BB line; Figure 20 yes Figure 19 A magnified view of part C within the middle frame; Figure 21This is a perspective view of the electrical connector of the present invention in a second embodiment; Figure 22 yes Figure 21 A three-dimensional diagram from another angle; Figure 23 yes Figure 21 The main view; Figure 24 yes Figure 21 The right view; Figure 25 yes Figure 21 Partial exploded 3D diagram; Figure 26 yes Figure 25 Partial 3D exploded view from another angle; Figure 27 yes Figure 25 Further partial exploded view; Figure 28 yes Figure 27 Partial 3D exploded view from another angle; Figure 29 yes Figure 27 An exploded 3D view of the fixing block and sealing gasket in the middle; Figure 30 yes Figure 29 A three-dimensional exploded view from another angle; Figure 31 yes Figure 27 An exploded perspective view of the cable, cable sleeve, first cover, and second cover. Figure 32 yes Figure 31 A three-dimensional exploded view from another angle; Figure 33 It is along Figure 21 Schematic diagram of the cross section of the DD line; Figure 34 yes Figure 33 A magnified view of part E within the middle frame.

[0030] Those skilled in the art should understand that the accompanying drawings provided herein are for the purpose of illustrating specific embodiments of the invention, and the scale shown in the drawings is only for illustrative embodiments; other embodiments are not necessarily implemented to scale. Detailed Implementation

[0031] The exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. If several embodiments exist, features in these embodiments may be combined with each other without conflict. When the description refers to the drawings, unless otherwise stated, the same numbers in different drawings represent the same or similar elements. The descriptions in the following exemplary embodiments do not represent all embodiments consistent with the present invention; rather, they are merely examples of apparatuses, products, and / or methods consistent with some aspects of the present invention as set forth in the claims.

[0032] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the scope of protection of this invention. The singular forms “a,” “the,” or “the” as used in the specification and claims of this invention are also intended to include the plural forms unless the context clearly indicates otherwise.

[0033] It should be understood that the terms "first," "second," and similar words used in the specification and claims of this invention do not indicate any order, quantity, or importance, but are merely used to distinguish features. Similarly, the terms "an" or "a" do not indicate a quantity limitation, but rather indicate the presence of at least one. Unless otherwise stated, the terms "before," "after," "upper," "lower," and similar words appearing in this invention are for ease of explanation only and are not limited to a specific location or spatial orientation. The terms "comprising" or "including" are an open-ended expression, meaning that the element preceding "comprising" or "including" encompasses the element following "comprising" or "including" and its equivalents, but this does not preclude the element preceding "comprising" or "including" from also including other elements. In this invention, the term "several" means two or more.

[0034] Please refer to Figures 1 to 20 As shown, the first embodiment of the present invention discloses an electrical connector 100, which includes an insulating body 1, a sealing ring 2 installed and fixed in the insulating body 1, a connector position assurance element (CPA) 3 installed on the insulating body 1, a connector assembly 4 disposed in the insulating body 1, a molding block 5 at least partially fixed on the connector assembly 4, a fixing block 6 at least partially fixed on the connector assembly 4, a sealing gasket 7 abutting between the insulating body 1 and the fixing block 6, and a first cover 81 and a second cover 82 fixed to the insulating body 1.

[0035] Please combine Figure 15As shown in the illustrated embodiment of the present invention, the electrical connector 100 is an automotive cable connector. The connector assembly 4 includes a connector connector 41, an internal circuit board 42 electrically connected to the connector connector 41, a cable 43 electrically connected to the internal circuit board 42, and a metal shielding housing 44 covering the connector connector 41. In the illustrated embodiment of the present invention, the connector connector 41 is a Type-C connector plug. One end of the internal circuit board 42 is soldered to the connector connector 41, and the other end of the internal circuit board 42 is soldered to the cable 43.

[0036] Please combine Figures 5 to 10 As shown in the illustrated embodiment of the present invention, the insulating body 1 includes a first insulating body 11 and a second insulating body 12 mounted in the first insulating body 11. The first insulating body 11 includes a base 111, a receiving portion 112 connected to one end (e.g., the front end) of the base 111, a mounting portion 113 connected to the other end (e.g., the rear end) of the base 111, and a protrusion 114 protruding upward from the base 111.

[0037] Please combine Figure 9 , Figure 10 as well as Figure 20 As shown in the illustrated embodiment of the present invention, the receiving portion 112 includes an outer peripheral wall 1121, an extending protrusion 1122 located in the outer peripheral wall 1121, and a first end face 1123 located at the rear end of the extending protrusion 1122. In the illustrated embodiment of the present invention, the outer peripheral wall 1121 includes a first mating surface 1121a and a first receiving space 1121b extending forward through the first mating surface 1121a along a first direction A1-A1 (e.g., a front-rear direction). The extending protrusion 1122 is located in the first receiving space 1121b. The first end face 1123 protrudes forward into the first receiving space 1121b.

[0038] Specifically, in the embodiment illustrated in the present invention, the outer peripheral wall 1121 includes a first top wall 1121c, a first bottom wall 1121d opposite to the first top wall 1121c, a first side wall 1121e connecting one side of the first top wall 1121c and one side of the first bottom wall 1121d, and a second side wall 1121f connecting the other side of the first top wall 1121c and the other side of the first bottom wall 1121d. The first receiving space 1121b is formed by the first top wall 1121c, the first bottom wall 1121d, the first side wall 1121e, and the second side wall 1121f.

[0039] In the illustrated embodiment of the present invention, the first top wall 1121c is provided with a first raised portion 1121c1 protruding away from the first bottom wall 1121d along a second direction A2-A2 (e.g., vertical direction), and the first raised portion 1121c1 is provided with a first recess 1121c2 located at its bottom. The first bottom wall 1121d is provided with a second raised portion 1121d1 protruding away from the first top wall 1121c along a second direction A2-A2, and the second raised portion 1121d1 is provided with a second recess 1121d2 located at its top. In the illustrated embodiment of the present invention, both the first side wall 1121e and the second side wall 1121f are generally arc-shaped. The first side wall 1121e is provided with a third raised portion 1121e1 protruding away from the second side wall 1121f along a third direction A3-A3 (e.g., horizontal direction), and the third raised portion 1121e1 is provided with a third recess 1121e2 located on its inner side. The first receiving space 1121b includes a first recess 1121c2, a second recess 1121d2, and a third recess 1121e2. In one embodiment of the invention, the first recess 1121c2, the second recess 1121d2, and the third recess 1121e2 are respectively used to mate with corresponding positioning protrusions of a mating electrical connector (not shown) to achieve positioning of the two and prevent reverse insertion. In the illustrated embodiment of the invention, the first direction A1-A1, the second direction A2-A2, and the third direction A3-A3 are mutually perpendicular.

[0040] The extended protrusion 1122 is generally rectangular and includes a top surface 1122a, a bottom surface 1122b opposite to the top surface 1122a, a first side surface 1122c connecting one side of the top surface 1122a and one side of the bottom surface 1122b, a second side surface 1122d connecting the other side of the top surface 1122a and the other side of the bottom surface 1122b, and a front surface 1122e located at the front end of the extended protrusion 1122. The extended protrusion 1122 also includes a first through groove 1122f extending forward along a first direction A1-A1 through the front surface 1122e, a first positioning groove 1122g extending forward along the first direction A1-A1 through the front surface 1122e and located on one side of the first through groove 1122f, and a second positioning groove 1122h extending forward along the first direction A1-A1 through the front surface 1122e and located on the other side of the first through groove 1122f.

[0041] The protrusion 114 is provided with a through groove 1141 that extends upward and backward through the protrusion 114. The through groove 1141 does not extend forward through the first raised portion 1121c1. The protrusion 114 is provided with a first operating portion 1142 located above the through groove 1141.

[0042] The connector position guaranteeing element 3 is received in the through slot 1141. The connector position guaranteeing element 3 includes a head 31 that at least partially protrudes into the first receiving space 1121b. The head 31 is configured to press against the mating electrical connector to improve the reliability of the mating electrical connector when it mates with the electrical connector 100.

[0043] In the embodiment illustrated in the present invention, the second insulating body 12 and the first insulating body 11 are separately disposed, and the second insulating body 12 is assembled and fixed to the first insulating body 11. Of course, in other embodiments of the present invention, the second insulating body 12 may also be integrally formed with the first insulating body 11.

[0044] In the embodiment illustrated in the present invention, the second insulating body 12 includes a second top wall 121, a second bottom wall 122 opposite to the second top wall 121, a third side wall 123 connecting one side of the second top wall 121 and one side of the second bottom wall 122, and a fourth side wall 124 connecting the other side of the second top wall 121 and the other side of the second bottom wall 122. The second insulating body 12 includes a second mating surface 125, a second end face 129 opposite to the second mating surface 125, and a second receiving space 120 penetrating the second mating surface 125 and the second end face 129 along a first direction A1-A1. The second receiving space 120 is formed by the second top wall 121, the second bottom wall 122, the third side wall 123, and the fourth side wall 124. Furthermore, the second insulating body 12 also includes a partition plate 126 located in the second receiving space 120, a first positioning protrusion 127 connected to one side of the partition plate 126, and a second positioning protrusion 128 connected to the other side of the partition plate 126. The outer periphery of the partition plate 126 is fixed to the inner surfaces of the second top wall 121, the second bottom wall 122, the third side wall 123, and the fourth side wall 124. The partition plate 126 divides the second receiving space 120 into a first space 1201 located on one side (e.g., the front side) of the partition plate 126 and a second space 1202 located on the other side (e.g., the rear side) of the partition plate 126. The partition plate 126 includes a second through groove 1261 extending through the partition plate 126 along a first direction A1-A1. The second through groove 1261 is located between the first space 1201 and the second space 1202, and the second through groove 1261 communicates the first space 1201 and the second space 1202 together. In the embodiment illustrated in the present invention, the shape, size, and position of the second through groove 1261 correspond to the through groove 1141. The first positioning protrusion 127 and the second positioning protrusion 128 are parallel to each other and are both located in the second space 1202.

[0045] During assembly, the sealing ring 2 is fitted onto the extension protrusion 1122 and located at the rear end of the extension protrusion 1122. Specifically, the sealing ring 2 abuts against the first end face 1123. In other words, the extension protrusion 1122 passes forward through the sealing ring 2 along the first direction A1-A1. The sealing ring 2 tightly abuts against the top surface 1122a, bottom surface 1122b, first side surface 1122c, and second side surface 1122d. Then, the second insulating body 12 is assembled onto the first insulating body 11. The extension protrusion 1122 is received in the second space 1202, and the front end face 1122e abuts against the partition plate 126 to achieve positioning. The first positioning protrusion 127 and the second positioning protrusion 128 are respectively inserted into and fixed in the first positioning groove 1122g and the second positioning groove 1122h to achieve positioning. The second through groove 1261 corresponds to and communicates with the through groove 1141. The second insulating body 12 protrudes forward along the first direction A1-A1 from the first mating surface 1121a. The sealing ring 2 is abutted between the first insulating body 11 and the second insulating body 12 along the first direction A1-A1. Specifically, the sealing ring 2 is abutted between the first end face 1123 and the second end face 129 along the first direction A1-A1. The sealing ring 2 is exposed in the first receiving space 1121b. The sealing ring 2 prevents water from entering the interior of the electrical connector 100 from the first receiving space 1121b when the electrical connector 100 mates with the mating electrical connector, especially preventing water from contacting the built-in circuit board 42.

[0046] In the embodiment illustrated in the present invention, the mounting portion 113 includes a third top wall 1131, a third bottom wall 1132 opposite to the third top wall 1131, a fifth side wall 1133 connecting one side of the third top wall 1131 to one side of the fourth bottom wall 1132, and a sixth side wall 1134 connecting the other side of the third top wall 1131 to the other side of the fourth bottom wall 1132. Furthermore, the mounting portion 113 also includes a mounting space 1130 and a first abutment surface 1136 exposed rearwardly within the mounting space 1130. The mounting space 1130 is enclosed by the third top wall 1131, the third bottom wall 1132, the fifth side wall 1133, and the sixth side wall 1134. The mounting portion 113 includes a mounting surface 1135, and the mounting space 1130 extends rearwardly through the mounting surface 1135 along a first direction A1-A1. A through groove 1141 extends rearwardly through the base 111 and the mounting portion 113 to communicate with the mounting space 1130. The third bottom wall 1132 is provided with a clearance recess 1132a that communicates with the installation space 1130.

[0047] In the embodiment illustrated in the present invention, both the fifth sidewall 1133 and the sixth sidewall 1134 are generally arc-shaped. The fifth sidewall 1133 is provided with at least one first positioning protrusion 1133a and a first locking groove 1133b protruding away from the sixth sidewall 1134, and the sixth sidewall 1134 is provided with at least one second positioning protrusion 1134a and a second locking groove 1134b protruding away from the fifth sidewall 1133. In the embodiment illustrated in the present invention, there are two first positioning protrusions 1133a and they are spaced apart circumferentially, and there are two second positioning protrusions 1134a and they are spaced apart circumferentially.

[0048] In one embodiment of the present invention, the first cover 81 is an insulating cover, i.e., it is made of insulating material. The first cover 81 includes a U-shaped first main body 811, a first extension 812 extending from one side of the first main body 811 toward the second cover 82, a second extension 813 extending from the other side of the first main body 811 toward the second cover 82, a first rear cover 814 connected to the bottom of the first main body 811, and a first protrusion 815 extending from the first rear cover 814 toward the second cover 82. The first main body 811 is wrapped around the fifth side wall 1133. The first extension 812 is provided with a first locking hole 8121, the second extension 813 is provided with a second locking hole 8131, and the first protrusion 815 is provided with a third locking hole 8151. The first main body 811 is provided with a first positioning hole 816 that mates with the first positioning protrusion 1133a. The first main body 811 is also provided with a first clearance recess 817 located beside the second extension 813.

[0049] In one embodiment of the present invention, the second cover 82 is an insulating cover, i.e., it is made of insulating material. The second cover 82 includes a U-shaped second main body portion 821 and a second rear cover 822 connected to the bottom of the second main body portion 821. One side of the second main body portion 821 is provided with a first groove 8211 and a first locking protrusion 8212 located in the first groove 8211. The other side of the second main body portion 821 is provided with a second groove 8213 and a second locking protrusion 8214 located in the second groove 8213. The second main body portion 821 is also provided with a second clearance recess 827 that mates with a first clearance recess 817. The second rear cover 822 is provided with a third groove 8221 and a third locking protrusion 8222 located in the third groove 8221. The second main body portion 821 is wrapped around a sixth side wall 1134. The second main body portion 821 is provided with a second positioning hole 826 that mates with a second positioning protrusion 1134a. The first extension 812 is at least partially located in the first groove 8211, and the first latching protrusion 8212 is engaged and fixed in the first latching hole 8121. The second extension 813 is at least partially located in the second groove 8213, and the second latching protrusion 8214 is engaged and fixed in the second latching hole 8131. The first protrusion 815 is at least partially located in the third groove 8221, and the third latching protrusion 8222 is engaged and fixed in the third latching hole 8151. The first rear cover 814 corresponds to the second rear cover 822 and covers the mounting surface 1135. The first clearance recess 817 and the second clearance recess 827 form a circular hole 828. The first rear cover 814 and / or the second rear cover 822 are provided with an abutting protrusion 818 located on the inner surface, which abuts against the fixing block 6.

[0050] Please combine Figures 17 to 20 As shown in the illustrated embodiment of the present invention, the connector 41 includes an insulating block 411, a plurality of first conductive terminals 412 disposed in the insulating block 411, a plurality of second conductive terminals 413 disposed in the insulating block 411, and a metal casing 414 covering the insulating block 411. In the illustrated embodiment of the present invention, the insulating block 411 is provided with a receiving groove 4111. The first conductive terminals 412 include a first mating portion 4121 extending into the receiving groove 4111 and located on one side (e.g., the upper side) of the receiving groove 4111, and a first tail portion 4122 extending rearward and protruding from the insulating block 411. The second conductive terminals 413 include a second mating portion 4131 extending into the receiving groove 4111 and located on the other side (e.g., the lower side) of the receiving groove 4111, and a second tail portion 4132 extending rearward and protruding from the insulating block 411. The metal casing 414 is generally elliptical and is fitted onto the insulating block 411. The rear end of the metal casing 414 is provided with a positioning groove 4141, and the built-in circuit board 42 is at least partially engaged and positioned in the positioning groove 4141.

[0051] In the embodiment illustrated in the present invention, the built-in circuit board 42 includes a first surface 421, a second surface 422 opposite to the first surface 421, a plurality of first conductive sheets 4211 disposed at the front end of the first surface 421, a plurality of third conductive sheets 4212 disposed at the rear end of the first surface 421, a plurality of second conductive sheets 4221 disposed at the front end of the second surface 422, and a plurality of fourth conductive sheets 4222 disposed at the rear end of the second surface 422.

[0052] In the illustrated embodiment of the present invention, the front end of the built-in circuit board 42 is clamped between the first tail portion 4122 and the second tail portion 4132. The first tail portion 4122 is welded and fixed to the first conductive sheet 4211, and the second tail portion 4132 is welded and fixed to the second conductive sheet 4221. The third conductive sheet 4212 and the fourth conductive sheet 4222 are welded and fixed to the cable 43.

[0053] In the illustrated embodiment of the present invention, the cable 43 includes a first portion 431, a second portion 432 perpendicular to the first portion 431, and a bent portion 433 connecting the first portion 431 and the second portion 432. In the illustrated embodiment of the present invention, the first portion 431 extends along a first direction A1-A1, and the second portion 432 extends along a second direction A2-A2. The bent portion 433 is arc-shaped to serve as a transition portion.

[0054] In the illustrated embodiment of the present invention, the metal shielding housing 44 includes a first metal housing 441 and a second metal housing 442 that cooperates with the first metal housing 441. In the illustrated embodiment of the present invention, both the first metal housing 441 and the second metal housing 442 are generally U-shaped. The first metal housing 441 and the second metal housing 442 are fastened and fixed together and at least partially wrapped around the covering metal housing 414 to improve the shielding effect.

[0055] In the illustrated embodiment of the present invention, the molding block 5 includes a first injection molding block 51, a second injection molding block 52, and a third injection molding block 53. The first injection molding block 51 is injection molded at the welding points of the first tail 4122 and the first conductive sheet 4211, and the second tail 4132 and the second conductive sheet 4221, to prevent the welding points from loosening. The second injection molding block 52 is injection molded at the welding points of the third conductive sheet 4212 and the fourth conductive sheet 4222 and the cable 43 to prevent the welding points from loosening. A first metal shell 441 and a second metal shell 442 enclose the first injection molding block 51 and the second injection molding block 52. The third injection molding block 53 is injection molded on the first metal shell 441 and the second metal shell 442 to improve structural strength. In the illustrated embodiment of the present invention, the molding block 5 completely encloses the built-in circuit board 42, meaning that the electronic components or conductive parts on the built-in circuit board 42 are completely located within the molding block 5, thus providing a waterproof function. In the illustrated embodiment of the present invention, the first injection molding block 51, the second injection molding block 52, and the third injection molding block 53 are formed in stages. Those skilled in the art will understand that in other embodiments of the present invention, the first injection molding block 51 and the second injection molding block 52 can also be combined into one, i.e., obtained through a single molding process.

[0056] The fixing block 6 includes a base portion 61, a positioning protrusion 62 protruding forward from the base portion 61, and a protruding post portion 63 protruding downward from the base portion 61. The base portion 61 has a second abutment surface 611 at its front end, and the positioning protrusion 62 further protrudes forward from the second abutment surface 611. The base portion 61 also has a first locking protrusion 612 on one side and a second locking protrusion 613 on the other side. The first locking protrusion 612 is engaged and fixed in a first locking groove 1133b, and the second locking protrusion 613 is engaged and fixed in a second locking groove 1134b.

[0057] In one embodiment of the invention, the fixing block 6 is injection molded on the rear end of the first portion 431, the bent portion 433, and the top end of the second portion 432. With this configuration, when the cable 43 is bent to form the first portion 431, the bent portion 433, and the second portion 432, the fixing block 6 can absorb the stress generated by the bending of the cable 43, thereby reducing the risk of deformation of the cable 43.

[0058] In the embodiment illustrated in the present invention, the fixing block 6 includes a first fixing block 6a and a second fixing block 6b. In one embodiment of the present invention, the first fixing block 6a is injection molded on the rear end of the first portion 431, the bent portion 433, and the top end of the second portion 432, and the second fixing block 6b is then injection molded on the first fixing block 6a.

[0059] In the embodiment illustrated in the present invention, the first fixing block 6a and the second fixing block 6b have similar shapes. The first fixing block 6a includes an inner base portion 64, an inner positioning protrusion 65 protruding forward from the inner base portion 64, and an inner protruding pillar portion 66 protruding downward from the inner base portion 64. The base portion 61, the positioning protrusion 62, and the protruding pillar portion 63 are disposed on the second fixing block 6b. The base portion 61, the positioning protrusion 62, and the protruding pillar portion 63 respectively wrap around the inner base portion 64, the inner positioning protrusion 65, and the inner protruding pillar portion 66. In addition, in order to improve the reliability of the combination of the first fixing block 6a and the second fixing block 6b, the first fixing block 6a is also provided with a plurality of slots 67 penetrating its outer surface, and the second fixing block 6b is partially embedded in the slots 67 during secondary molding.

[0060] In the embodiment illustrated in the present invention, the sealing gasket 7 is generally elliptical in shape and has a through hole 71 extending through its central portion. The sealing gasket 7 is fitted onto the positioning protrusion 62, and the front surface 72 of the sealing gasket 7 is approximately flush with the front surface 621 of the positioning protrusion 62. After assembly, the sealing gasket 7 is abutted between the first abutment surface 1136 and the second abutment surface 611 along the first direction A1-A1 to provide a waterproof seal from the rear end, preventing water from entering the interior of the electrical connector 100 from the rear end of the cable 43, and especially preventing water from contacting the built-in circuit board 42. The retaining block 6 is at least partially located in the relief recess 1132a, and the protruding post 63 passes downward through the circular hole 828.

[0061] In the embodiment illustrated in the present invention, the connector 41 passes forward through the first through groove 1122f, the second through groove 1261, and the second receiving space 120, causing the mating port 410 of the connector 41 to extend and protrude beyond the second mating surface 125. In one embodiment of the present invention, the mating port 410 extends forward along the first direction A1-A1 beyond the second mating surface 125 by a distance d1, where 0.5mm ≤ d1 ≤ 4.5mm. The second insulating body 12 extends forward along the first direction A1-A1 beyond the first mating surface 1121a by a distance d2, that is, the distance between the first mating surface 1121a and the second mating surface 125 is d2. In one embodiment of the present invention, 2d1 ≤ d2 ≤ 5d1.

[0062] In the embodiment illustrated in the present invention, the metal housing 414 of the connector joint 41 extends beyond the second mating surface 125 to mate with the mating electrical connector first, thereby achieving an anti-static effect. Furthermore, extending the mating port 410 of the connector joint 41 beyond the second mating surface 125 allows the user to observe the connection when inserting the electrical connector 100 into the mating electrical connector, thus improving the success rate of the mating.

[0063] In one embodiment of the present invention, during assembly, firstly, the connector 41 and cable 43 are soldered and fixed to the built-in circuit board 42; then, the first injection molding block 51 and the second injection molding block 52 are injection molded onto the soldering points of the connector 41 and the built-in circuit board 42, and the soldering points of the cable 43 and the built-in circuit board 42; the first metal housing 441 and the second metal housing 442 are fastened onto the connector 41, the first injection molding block 51, and the second injection molding block 52; the third injection molding block 53 is formed onto the first metal housing 441 and the second metal housing 442; and the second fixing block 6b is formed into... The first fixing block 6a is then formed on the cable 43, and the second fixing block 6b is then formed on the first fixing block 6a. The sealing gasket 7 is fitted onto the positioning protrusion 62. The assembled parts are then assembled onto the first insulating body 11. The sealing ring 2 is fitted onto the extension protrusion 1122. The second insulating body 12 is assembled and fixed onto the first insulating body 11. The first cover 81 and the second cover 82 are assembled and fixed onto the second fixing block 6b and the mounting part 113. The first cover 81 and the second cover 82 can compress the sealing gasket 7 to a certain extent to improve the waterproof sealing effect. Finally, the connector position guarantee element 3 is assembled and fixed onto the first insulating body 11.

[0064] Of course, those skilled in the art will understand that the above installation steps can be flexibly adjusted as needed. For example, the connector position guarantee element 3 can be installed on the first insulating body 11 first.

[0065] Please combine Figures 21 to 34 As shown, in the second embodiment of the electrical connector 100 of the present invention, the electrical connector 100 is similar to the electrical connector 100 in the first embodiment. The electrical connector 100 in the second embodiment includes an insulating body 1, a sealing ring 2 installed and fixed in the insulating body 1, a connector position assurance element (CPA) 3 installed on the insulating body 1, a connector assembly 4 disposed in the insulating body 1, a molding block 5 at least partially fixed on the connector assembly 4, a fixing block 6 at least partially fixed on the connector assembly 4, a sealing gasket 7 abutting between the insulating body 1 and the fixing block 6, a first cover 81 and a second cover 82 fixed to the insulating body 1, and a collar 9.

[0066] Connector assembly 4 includes a connector connector 41, an internal circuit board 42 electrically connected to the connector connector 41, a cable 43 electrically connected to the internal circuit board 42, and a metal shielding housing 44 covering the connector connector 41. In the illustrated embodiment of the present invention, the connector connector 41 is a Type C connector plug. One end of the internal circuit board 42 is soldered to the connector connector 41, and the other end of the internal circuit board 42 is soldered to the cable 43. A collar 9 is fitted onto the cable 43 and mates with the first cover 81 and the second cover 82.

[0067] The electrical connector 100 in the second embodiment of the present invention has the same structure as the electrical connector in the first embodiment of the present invention in terms of the insulating body 1, the sealing ring 2, the connector position guaranteeing element 3, the connector assembly 4, the molding block 5, and the sealing gasket 7. For the sake of simplicity, the main differences between the two are described below.

[0068] Please combine Figure 31 as well as Figure 32 As shown, in the second embodiment of the electrical connector 100 of the present invention, the first cover 81 is an insulating cover, that is, it is made of insulating material. The first cover 81 includes a U-shaped first main body portion 811, a first extension portion 812 extending from one side of the first main body portion 811 toward the second cover 82, a second extension portion 813 extending from the other side of the first main body portion 811 toward the second cover 82, a first rear cover 814 connected to the bottom of the first main body portion 811, a first protrusion 815 extending from the first rear cover 814 toward the second cover 82, and a first covering portion 819 extending downward from the first main body portion 811. The first main body portion 811 is wrapped around the fifth side wall 1133. The first extension portion 812 is provided with a first locking hole 8121, the second extension portion 813 is provided with a second locking hole 8131, and the first protrusion 815 is provided with a third locking hole 8151. The first main body portion 811 is provided with a first positioning hole 816 that cooperates with the first positioning protrusion 1133a. The first covering portion 819 is generally arc-shaped and includes a first protruding rib 8191 and a first retaining groove 8192 located inside the first protruding rib 8191.

[0069] In one embodiment of the present invention, the second cover 82 is an insulating cover, i.e., it is made of insulating material. The second cover 82 includes a U-shaped second main body portion 821, a second rear cover 822 connected to the bottom of the second main body portion 821, and a second covering portion 829 extending downward from the second main body portion 821. One side of the second main body portion 821 is provided with a first groove 8211 and a first locking protrusion 8212 located in the first groove 8211. The other side of the second main body portion 821 is provided with a second groove 8213 and a second locking protrusion 8214 located in the second groove 8213. The second rear cover 822 is provided with a third groove 8221 and a third locking protrusion 8222 located in the third groove 8221. The second main body portion 821 wraps around the sixth side wall 1134. The second main body portion 821 is provided with a second positioning hole 826 that mates with the second positioning protrusion 1134a. The first extension 812 is at least partially located in the first groove 8211, and the first latching protrusion 8212 is engaged and fixed in the first latching hole 8121. The second extension 813 is at least partially located in the second groove 8213, and the second latching protrusion 8214 is engaged and fixed in the second latching hole 8131. The first protrusion 815 is at least partially located in the third groove 8221, and the third latching protrusion 8222 is engaged and fixed in the third latching hole 8151. The first rear cover 814 corresponds to the second rear cover 822 and covers the mounting surface 1135. The second covering portion 829 is generally arc-shaped and includes a second rib 8291 and a second retaining groove 8292 located inside the second rib 8291. The first retaining groove 8192 and the second retaining groove 8292 form an annular groove 8293.

[0070] The fixing block 6 includes a base portion 61 and a positioning protrusion 62 protruding forward from the base portion 61. The base portion 61 has a second abutment surface 611 at its front end, and the positioning protrusion 62 further protrudes forward from the second abutment surface 611. The base portion 61 also has a first locking protrusion 612 on one side and a second locking protrusion 613 on the other side. The first locking protrusion 612 is engaged and fixed in a first locking groove 1133b, and the second locking protrusion 613 is engaged and fixed in a second locking groove 1134b. In one embodiment of the present invention, the fixing block 6 is injection molded at the rear end of the first portion 431. The base portion 61 has a slot 610 that penetrates the base portion 61 along a second direction A2-A2 and extends rearward through the base portion 61 along a first direction A1-A1. The base portion 61 also has a first positioning rib 6101 and a second positioning rib 6102 that respectively protrude inward from both sides into the slot 610. The slot 610 is configured to allow the bent portion 433 of the cable 43 to pass through, and the first positioning rib 6101 and the second positioning rib 6102 are used to position the bent portion 433 of the cable 43.

[0071] In the second embodiment illustrated in the present invention, the fixing block 6 includes a first fixing block 6a and a second fixing block 6b. In one embodiment of the present invention, the first fixing block 6a is injection molded at the rear end and / or the bent portion 433 of the first portion 431, and the second fixing block 6b is then injection molded onto the first fixing block 6a.

[0072] In the second embodiment illustrated in the present invention, the first fixing block 6a and the second fixing block 6b have similar shapes. The first fixing block 6a includes an inner base portion 64 and an inner positioning protrusion 65 protruding forward from the inner base portion 64. The inner base portion 64 is provided with an inner slot 640 that penetrates the inner base portion 64 along the second direction A2-A2 and extends rearward through the inner base portion 64 along the first direction A1-A1. The inner base portion 64 is also provided with a third positioning rib 6401 and a fourth positioning rib 6402 that respectively protrude inward from both sides into the inner slot 640.

[0073] The base portion 61 and the positioning protrusion 62 are provided on the second fixing block 6b. The base portion 61 and the positioning protrusion 62 are respectively wrapped around the inner base portion 64 and the inner positioning protrusion 65.

[0074] In the embodiment illustrated in the present invention, the sealing gasket 7 is generally elliptical in shape and has a through-hole 71 extending through its central portion. The sealing gasket 7 is fitted onto the positioning protrusion 62, and the front surface 72 of the sealing gasket 7 is substantially flush with the front surface 621 of the positioning protrusion 62. After assembly, the sealing gasket 7 is abutted between the first abutment surface 1136 and the second abutment surface 611 along the first direction A1-A1 to provide a waterproof seal from the rear end. The fixing block 6 is at least partially located in the relief recess 1132a.

[0075] A collar 9 is fitted onto the second portion 432 of the cable 43. The collar 9 includes an annular protrusion 91, which is engaged in an annular groove 8293 to prevent movement of the collar 9 along the second direction A2-A2. When the cable 43 is bent to form the first portion 431, the bent portion 433, and the second portion 432, the fixing block 6 can absorb the stress generated by the bending of the cable 43, thereby reducing the risk of deformation of the cable 43. The collar 9 facilitates further control over the shape of the cable 43, thereby further reducing the risk of deformation of the cable 43.

[0076] In one embodiment of the present invention, during assembly, firstly, the collar 9 is fitted onto the cable 43; the connector 41 and the cable 43 are soldered and fixed to the built-in circuit board 42; then, the first injection molding block 51 and the second injection molding block 52 are injection molded onto the soldering points of the connector 41 and the built-in circuit board 42, and the soldering points of the cable 43 and the built-in circuit board 42; the first metal shell 441 and the second metal shell 442 are fastened onto the connector 41, the first injection molding block 51, and the second injection molding block 52; and the third injection molding block 53 is formed on the first metal shell 441. The second fixing block 6b is formed on the cable 43 and then formed on the first fixing block 6a again; the sealing gasket 7 is sleeved on the positioning protrusion 62; the assembled parts are assembled on the first insulating body 11; the sealing ring 2 is sleeved on the extension protrusion 1122; the second insulating body 12 is assembled and fixed on the first insulating body 11; the first cover 81 and the second cover 82 are assembled and fixed on the second fixing block 6b and the mounting part 113; finally, the connector position guarantee element 3 is assembled and fixed on the first insulating body 11.

[0077] Of course, those skilled in the art will understand that the above installation steps can be flexibly adjusted as needed. For example, the connector position guarantee element 3 can be installed on the first insulating body 11 first.

[0078] 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 the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to the present invention. All technical solutions and improvements that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. An electrical connector, characterized in that, include: An insulating body, comprising a first insulating body and a second insulating body, the first insulating body including a first mating surface and a first receiving space penetrating the first mating surface, the second insulating body including a second mating surface and a second receiving space penetrating the second mating surface, the second mating surface protruding from the first mating surface, and the first receiving space surrounding the second insulating body; and A connector assembly including a connector head and a cable electrically connected to the connector head, the connector head extending through a first insulating body and a second insulating body to protrude from a second mating surface.

2. The electrical connector as described in claim 1, characterized in that: The first insulating body and the second insulating body are separately configured.

3. The electrical connector as described in claim 2, characterized in that: The first insulating body includes an outer peripheral wall and an extended protrusion located in the outer peripheral wall. The first receiving space surrounds the extended protrusion, and the extended protrusion has a front end face and a first through groove penetrating the front end face. The second insulating body includes a partition plate, a first space located on one side of the partition plate, and a second space located on the other side of the partition plate. The partition plate is provided with a second through groove connecting the first space and the second space. The extended protrusion is at least partially housed in the second space, and the connector passes through the first through slot and the second through slot.

4. The electrical connector as described in claim 3, characterized in that: The first insulating body includes a first end face located at the rear end of the extended protrusion, and the second insulating body includes a second end face opposite to the second mating surface; The electrical connector further includes a sealing ring fitted onto the extended protrusion, the sealing ring being exposed in the first receiving space, and the sealing ring being abutted between the first end face and the second end face.

5. The electrical connector as described in claim 3, characterized in that: The extended protrusion also includes a first positioning groove that penetrates the front end face and is located on one side of the first through groove, and a second positioning groove that penetrates the front end face and is located on the other side of the first through groove. The second insulating body includes a first positioning protrusion connected to one side of the partition plate and a second positioning protrusion connected to the other side of the partition plate. The first positioning protrusion is inserted into and fixed in the first positioning groove, and the second positioning protrusion is inserted into and fixed in the second positioning groove.

6. The electrical connector as claimed in claim 1, characterized in that: The connector includes a mating port, which extends beyond the second mating surface by a distance d1, wherein 0.5mm ≤ d1 ≤ 4.5mm.

7. The electrical connector as claimed in claim 6, characterized in that: The distance between the first mating surface and the second mating surface is d2, where 2d1≤d2≤5d1.

8. The electrical connector as claimed in claim 1, characterized in that: The connector assembly includes a built-in circuit board, one end of which is electrically connected to the connector connector and the other end of which is electrically connected to the cable.

9. The electrical connector as claimed in claim 8, characterized in that: The connector includes an insulating block, a plurality of first conductive terminals disposed in the insulating block, a plurality of second conductive terminals disposed in the insulating block, and a metal shell covering the insulating block, wherein the metal shell at least partially extends out of the second mating surface.

10. The electrical connector as claimed in claim 9, characterized in that: The insulating block is provided with a receiving groove. The first conductive terminal includes a first mating portion extending into the receiving groove and located on one side of the receiving groove, and a first tail portion extending out of the insulating block. The second conductive terminal includes a second mating portion extending into the receiving groove and located on the other side of the receiving groove, and a second tail portion extending out of the insulating block. The metal-clad housing is sleeved on the insulating block. The rear end of the metal-clad housing is provided with a positioning groove. The built-in circuit board is at least partially engaged and positioned in the positioning groove. The built-in circuit board is located between the first tail portion and the second tail portion.

11. The electrical connector as claimed in claim 10, characterized in that: The connector assembly includes a molded block injection molded onto the built-in circuit board, a portion of the covered metal housing, and a portion of the cable.

12. The electrical connector as claimed in claim 11, characterized in that: The molding block includes a first injection molding block, a second injection molding block, and a third injection molding block; the first injection molding block is injection molded at the welding points of the first tail and the second tail with the built-in circuit board; the second injection molding block is injection molded at the welding points of the built-in circuit board and the cable; The connector assembly includes a metal shielding housing, which includes a first metal housing and a second metal housing that engages with the first metal housing. The first metal housing and the second metal housing enclose the first injection-molded block and the second injection-molded block, and both the first metal housing and the second metal housing are in contact with the enclosing metal housing. The third injection molded block is injection molded onto the first metal shell and the second metal shell.

13. The electrical connector as claimed in claim 1, characterized in that: The first insulating body includes an installation space; The cable includes a first part, a second part, and a bent portion connecting the first part and the second part; the first part extends along a first direction, the second part extends along a second direction, and the first direction is perpendicular to the second direction; The electrical connector further includes a fixing block that is at least partially fixed to the bent portion, the fixing block being housed within the mounting space.

14. The electrical connector as claimed in claim 13, characterized in that: The fixing block is injection molded on the first part, the bent part, and the second part.

15. The electrical connector as claimed in claim 14, characterized in that: The fixing block includes a first fixing block and a second fixing block. The first fixing block is injection molded on the first part, the bent part, and the second part; the second fixing block is then injection molded on the first fixing block.

16. The electrical connector as claimed in claim 15, characterized in that: The first fixing block is also provided with several slots penetrating its outer surface, and the second fixing block is partially embedded in the slots during molding.

17. The electrical connector as claimed in claim 13, characterized in that: The electrical connector further includes a first cover and a second cover that is engaged with the first cover; The first cover includes a first main body, a first extension extending from one side of the first main body toward the second cover, a second extension extending from the other side of the first main body toward the second cover, a first rear cover connected to the bottom of the first main body, and a first protrusion extending from the first rear cover toward the second cover; the first extension is provided with a first locking hole, the second extension is provided with a second locking hole, and the first protrusion is provided with a third locking hole. The second cover includes a second main body and a second rear cover connected to the bottom of the second main body. One side of the second main body has a first groove and a first locking protrusion located in the first groove. The other side of the second main body has a second groove and a second locking protrusion located in the second groove. The second rear cover has a third groove and a third locking protrusion located in the third groove. The first extension is at least partially located in the first groove, and the first locking protrusion is secured in the first locking hole. The second extension is at least partially located in the second groove, and the second locking protrusion is secured in the second locking hole. The first protrusion is at least partially located in the third groove, and the third locking protrusion is secured in the third locking hole.

18. The electrical connector as claimed in claim 17, characterized in that: The first rear cover and / or the second rear cover are provided with abutting protrusions on the inner surface, the abutting protrusions abutting against the fixing block.

19. The electrical connector as claimed in claim 13, characterized in that: The fixing block has a slot that extends through the fixing block along the second direction, and the bent portion is at least partially located in the slot.

20. The electrical connector as claimed in claim 19, characterized in that: The fixing block is also provided with a first positioning rib and a second positioning rib that extend inward from both sides into the slot, and the first positioning rib and the second positioning rib are configured to position the bent portion.

21. The electrical connector as claimed in claim 13, characterized in that: The fixing block is located near the first part, and the electrical connector also includes a collar sleeved on the second part.

22. The electrical connector as claimed in claim 21, characterized in that: The electrical connector further includes a first cover and a second cover that is engaged with the first cover; The first cover includes a first main body portion and a first covering portion extending from the first main body portion; The second cover includes a second main body portion and a second covering portion extending from the second main body portion; The first covering part and the second covering part together wrap around the collar.

23. The electrical connector as claimed in claim 22, characterized in that: The first covering portion includes a first protruding rib and a first retaining groove located inside the first protruding rib; the second covering portion includes a second protruding rib and a second retaining groove located inside the second protruding rib; the first retaining groove and the second retaining groove together form an annular groove. The collar includes an annular protrusion that is engaged in the annular groove to prevent the collar from moving along the second direction.

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