Electric connector assembly

Abstract

The utility model discloses an electric connector assembly, comprising a sheath surrounding the periphery of an insulation body, the inner wall surface of the tail section of the sheath or the outer wall surface of the insulation body corresponding to the tail section is radially and convexly provided with a first anti-shake rib, and the protruding size of the first anti-shake rib in the radial direction is smaller than the size of an avoiding gap along the radial direction. Through the arrangement of the first anti-shaking rib, the electric connector assembly can be accurately positioned, and the first anti-shaking rib is arranged at an interval with the sealing element arranged between the insulating body and the waterproof section of the sheath in the axial direction. The sealing failure caused by the tearing of the sealing element due to excessive extrusion caused by the shaking bias of the electric connector and the sheath in the radial direction in the assembling process of the electric connector assembly and the casing is prevented, the structural stability of the electric connector assembly is ensured, and the waterproof performance of the electric connector assembly is improved.

Description

[Technical field]

[0001] The utility model relates to an electric connector component, in particular to a waterproof electric connector component. [Background technology]

[0002] An existing electrical connector assembly includes an electrical connector. In order to fix the electrical connector on a housing, a sleeve is inserted between the electrical connector and the housing in an axial direction so that it surrounds the outer periphery of the electrical connector. The sleeve and the housing are tightly installed to assemble and fix the electrical connector on the housing. In order to ensure the sealing performance between the electrical connector and the sleeve and prevent external water vapor from entering the housing through the gap between the outer side wall of the electrical connector and the inner side wall of the sleeve to affect the normal use of the electrical connector assembly, a sealing member is usually provided on the outer side of the electrical connector to seal the outer side wall of the electrical connector and the inner side wall of the sleeve. The gap between the inner walls of the sheath prevents water vapor from entering the casing; however, if the gap between the outer wall of the electrical connector and the inner wall of the sheath is too small, the seal may be easily squeezed and torn during the assembly of the sheath, causing the sealing performance of the seal to fail and leading to water vapor entering the casing; if the gap between the outer wall of the electrical connector and the inner wall of the sheath is increased, the sheath and the electrical connector may easily shake and offset during the assembly of the sheath, causing the seal to fail due to the offset squeezing between the electrical connector and the sheath, which may eventually cause water vapor to enter the casing and affect the waterproof performance of the electrical connector assembly.

[0003] Therefore, it is necessary to design an improved electrical connector assembly to solve the above technical problems. [Contents of the utility model]

[0004] In view of the problems of the background technology, the purpose of the utility model is to provide an electrical connector assembly which improves the waterproof performance of the electrical connector assembly by radially protruding a first anti-sway rib on the inner wall surface of the tail section of the sheath or the outer wall surface of the corresponding tail section of the insulating body, wherein the dimension of the first anti-sway rib along the radial direction is smaller than the dimension of the avoidance gap along the radial direction, so as to prevent the sheath from shaking and offsetting with the electrical connector during the assembly process, thereby causing the seal provided between the insulating body and the waterproof section to be excessively squeezed and torn, resulting in sealing failure, and preventing the seal from failing.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: an electrical connector assembly, used for fixed installation in a housing, characterized in that it includes:

[0006] An electrical connector, comprising an insulating body and a terminal arranged on the insulating body; a sheath, wherein the sheath comprises a main body extending in an axial direction and a mounting portion extending in a radial direction from an outer wall surface of the main body for being assembled and fixed with the housing, the main body being a cavity arranged through in an axial direction for accommodating the electrical connector, the main body comprising an insertion section located on one side of the mounting section in an axial direction, a tail section located on the other side of the mounting section, and a waterproof section located between the insertion section and the tail section, the insertion section being sleeved on the outer periphery of the insulating body in an axial direction from one end of the insulating body and inserted into the housing, The insertion section, the waterproof section and the tail section are all covered on the periphery of the insulating body, and an avoidance gap is provided in the radial direction between the connection between the tail section and the waterproof section and the outer wall surface of the insulating body, and a first anti-sway rib is radially protruded on the inner wall surface of the tail section or the outer wall surface of the insulating body corresponding to the tail section, and in the radial direction, the protruding size of the first anti-sway rib is smaller than the size of the avoidance gap in the radial direction; a sealing member is provided between the insulating body and the waterproof section to seal the gap between the inner wall surface of the waterproof section and the outer wall surface of the insulating body, and in the axial direction, the sealing member and the first anti-sway rib are spaced apart.

[0007] Furthermore, the first anti-sway rib is protruded in the radial direction from the inner wall surface of one end of the tail section away from the waterproof section, and the length of the first anti-sway rib in the axial direction is smaller than the length of the tail section.

[0008] Furthermore, a first guide slope is provided at one end of the first anti-sway rib close to the waterproof section, and a second guide slope is provided on the inner wall surface of one end of the insertion section away from the waterproof section. The first guide slope and the second guide slope jointly guide the insertion section to be inserted between the insulating body and the casing along the axial direction.

[0009] Furthermore, the inner side of the tail section has two first inner wall surfaces arranged opposite to each other and two inner connecting surfaces connecting the two opposite first inner wall surfaces, the two first inner wall surfaces are respectively integrally provided with a plurality of the first anti-sway ribs and are symmetrically arranged with each other, and the two inner connecting surfaces are respectively integrally provided with one first anti-sway rib and are symmetrically arranged with each other.

[0010] Furthermore, a recessed portion is recessed along the radial direction from the outer wall surface of the insulating body, the sealing member is accommodated in the recessed portion, and a second anti-sway rib is radially protruded from the outer wall surface of the insulating body corresponding to the insertion section, and a spacing area is provided between the recessed portion and the second anti-sway rib. In the axial direction, the sealing member is located between the second anti-sway rib and the first anti-sway rib.

[0011] Furthermore, the outer side of the insulating body has two first outer wall surfaces arranged opposite to each other and two external connecting surfaces connecting the two opposite first outer wall surfaces, the two first outer wall surfaces are respectively integrally provided with a plurality of the second anti-sway ribs and are symmetrically arranged with each other, and the two external connecting surfaces are respectively integrally provided with a plurality of the second anti-sway ribs and are symmetrically arranged with each other.

[0012] Furthermore, a sealing groove is axially recessed on one side surface of the mounting portion close to the insertion section, a sealing ring is provided in the sealing groove for sealing installation with the casing, and a plurality of material recesses are axially recessed on the other side surface of the mounting portion close to the tail section, and the plurality of material recesses are located between the sealing groove and the main body in the radial direction.

[0013] Furthermore, the mounting portion is provided with a first fixing hole near the edges thereof for fastening with the housing, the first fixing hole being located on the outside of the sealing groove in the radial direction, a groove being axially recessed on a side surface of the mounting portion close to the insertion section, the groove being located between the first fixing hole and the sealing groove in the radial direction, and a side wall of the groove away from the first fixing hole forming a chamfer with a bottom wall of the groove.

[0014] Furthermore, the insertion section is inserted between the insulating body and the casing along the axial direction, the tail section is located outside the casing, and the outer wall surface of the tail section at one end away from the waterproof section is integrally connected to the mounting portion with a reinforcing rib, and the reinforcing rib is aligned in the radial direction with the corresponding first anti-sway rib arranged on the inner wall surface of the tail section.

[0015] Furthermore, one end of the insulating body is exposed outside the tail section and is provided with a pair of interfaces, and the other end of the insulating body opposite to the insulating body is exposed outside the insertion section and is provided with another pair of interfaces. The insulating body is provided with a plurality of the terminals, and each of the terminals is provided with a contact portion at both ends along the axial direction, which is respectively located in the two docking interfaces. The plurality of terminals are arranged in two rows, and the two rows of terminals are respectively injection molded with two terminal modules, and the two terminal modules are respectively provided with through grooves. The two terminal modules are stacked and assembled, and the through grooves of the two terminal modules are respectively arranged to communicate with each other. The insulating body is injection molded on the two stacked and assembled terminal modules, and the through grooves are filled with the insulating material of the insulating body.

[0016] Furthermore, a portion of the insulating body is located in the casing, and a mounting plate is radially protruded from the portion of the insulating body located in the casing. The mounting plate and the sleeve are spaced apart in the axial direction, and the mounting plate is provided with a plurality of second fixing holes, and the plurality of second fixing holes are used to install fasteners.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the sealing member is arranged between the waterproof section of the insulating body and the sheath, sealing the gap between the inner wall surface of the sheath and the outer wall surface of the insulating body, preventing water vapor from entering the casing from the gap between the main body and the insulating body, thereby improving the waterproof performance of the electrical connector assembly; the inner wall surface of the tail section or the outer wall surface of the insulating body corresponding to the tail section is radially protruded with a first anti-sway rib, and the protruding dimension of the first anti-sway rib in the radial direction is smaller than the dimension of the avoidance gap in the radial direction. The provision of the first anti-sway rib enables the electrical connector assembly to be accurately positioned, preventing the sealing member from being excessively squeezed and torn and causing sealing failure due to the shaking offset of the electrical connector and the sheath in the radial direction during the assembly process of the electrical connector assembly with the casing, thereby ensuring the structural stability of the electrical connector assembly and improving the waterproof performance of the electrical connector; in the axial direction, the sealing member and the first anti-sway rib are spaced apart, preventing the first anti-sway rib from squeezing and wearing the sealing member during the assembly process, thereby causing the sealing member to fail, thereby improving the waterproof performance of the electrical connector assembly.

Brief Description of the Drawings

[0018] Figure 1 It is a three-dimensional exploded view of the electrical connector assembly and the housing of the utility model;

[0019] Figure 2 This is a three-dimensional schematic diagram of the electrical connector assembly of the utility model after being installed in a housing;

[0020] Figure 3 This is a top view of the electrical connector assembly of the utility model after being installed in the housing;

[0021] Figure 4 This is a front view of the electrical connector assembly of the utility model after being installed in the housing;

[0022] Figure 5 For the utility model Figure 3 Cross-sectional view along AA direction;

[0023] Figure 6 For the utility model Figure 4 Cross-sectional view along direction BB;

[0024] Figure 7 For the utility model Figure 4 Cross-sectional view along CC direction;

[0025] Figure 8 For the utility model Figure 5 A partial enlarged view of part D;

[0026] Fig. 9 It is a schematic diagram of a terminal forming terminal module of the electrical connector assembly of the utility model;

[0027] Fig.10It is a three-dimensional schematic diagram of a sheath of an electrical connector assembly of the utility model.

[0028] Description of the accompanying drawings for the specific implementation:

[0029] Electrical connector 1 Insulation body 11 Terminal 12 Contact Department 121 Terminal module 13 Through groove 131 Depression 111 Spacing area 112 The second anti-sway rib 113 The first outer wall surface 114 External connection surface 115 Docking port 116 Mounting plate 117 The second fixing hole 1171 Sheath 2 Main body 21 Insert segment 211 Waterproof section 212 End 213 The first anti-sway rib 2131 Avoidance gap 2132 First guide slope 2133 The second guiding slope 2111 Mounting section 22 Digging trough 221 Sealing groove 222 Groove 223 Rounded corners 2231 First fixing hole 224 Reinforced rib 2134 First inner wall surface 2135 Internal connection surface 2136 Sealing ring 3 Seal 4 Case 5 [Specific implementation method]

[0030] In order to facilitate a better understanding of the purpose, structure, characteristics and functions of the present invention, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods.

[0031] See also Figure 1 , Figure 2 and Figure 5 The electrical connector assembly (not numbered) of the present invention comprises an electrical connector 1 for fixing with a housing 5, a plurality of terminals 12 provided on the electrical connector 1, a sheath 2, a sealing member 4 and a sealing ring 3. Figure 1 and Figure 5 As shown, in the present embodiment, the electrical connector 1 is an adapter connector, and a pair of interfaces 116 are respectively provided at both ends of the electrical connector 1 along the axial direction for docking with corresponding docking elements (not shown), and each terminal 12 is respectively provided with a contact portion 121 at both ends of the axial direction, which are respectively located in the two pairs of interfaces 116 to electrically connect with the corresponding docking elements. In other embodiments, other types of connectors may be used, and the present invention is not limited to this.

[0032] like Figure 1 , Figure 5 , Figure 7 and Fig. 9 As shown, the electrical connector 1 includes an insulating body 11 extending in the axial direction and a plurality of terminals 12 disposed on the insulating body 11. In the axial direction, a portion of the insulating body 11 is located inside the housing 5, and another portion is located outside the housing 5. Figure 1 and Fig. 9As shown, a plurality of terminals 12 are arranged in two rows, and each row of terminals 12 is formed into a terminal module 13 by injection molding. Each terminal module 13 is provided with a plurality of through grooves 131. The two terminal modules 13 are assembled together by stacking, and the plurality of through grooves 131 of the two are respectively arranged correspondingly and interconnected. The insulating body 11 is injection molded on the two stacked and assembled terminal modules 13. The insulating material of the insulating body 11 fills the assembly gap between the plurality of through grooves 131 and the two terminal modules 13, so that the two terminal modules 13 are more tightly combined, ensuring that the waterproofing of the electrical connector 1 will not be affected by the expansion of the assembly gap under the influence of high and low temperatures or other environmental factors, thereby improving the waterproofing performance of the electrical connector 1. A recessed portion 111 is recessed in the radial direction from the outer wall surface of the insulating body 11, and a plurality of second anti-sway ribs 113 are protruded in the radial direction from the outer wall surface of the insulating body 11. There is a spacing area 112 between the recessed portion 111 and the plurality of second anti-sway ribs 113. As shown Figure 7 As shown, the outer side of the insulating body 11 has two first outer wall surfaces 114 arranged opposite to each other and two outer connecting surfaces 115 connecting the two opposite first outer wall surfaces 114. The two outer connecting surfaces 115 are also arranged opposite to each other. The area of ​​each first outer wall surface 114 is larger than the area of ​​each outer connecting surface 115. The two opposite first outer wall surfaces 114 and the two opposite outer connecting surfaces 115 are enclosed together to form a closed shape. The two first outer wall surfaces 114 are respectively provided with a plurality of second anti-sway ribs 113 integrally and symmetrically arranged. The two outer connecting surfaces 115 are respectively provided with a second anti-sway rib 113 integrally and symmetrically arranged. A mounting plate 117 is convexly provided on one side of the outer wall surface of the insulating body in the radial direction. The mounting plate is provided with a plurality of second fixing holes 1171 for installing fasteners (not shown).

[0033] like Figure 1 , Figures 3 to 6 and Fig.10As shown, the sheath 2 is inserted between the electrical connector 1 and the housing 5 in the axial direction. The sheath 2 includes a main body 21 extending in the axial direction and a mounting portion 22 protruding in the radial direction from the outer wall surface of the main body 21. The mounting portion 22 is used to be fastened and installed with the housing 5. The main body 21 includes an insertion section 211 located on one side of the mounting portion 22 in the axial direction, a tail section 213 located on the other side of the mounting portion 22, and a waterproof section 212 located between the insertion section 211 and the tail section 213. The mounting portion 22 is radially extended from the outer wall surface of the waterproof section 212. The main body 21 It is a cavity that penetrates in the axial direction, that is, the insertion section 211, the waterproof section 212 and the tail section are mutually penetrated in the axial direction, the hollow main body 21 is surrounded by the outside of the insulating body 11, and the insertion section 211, the waterproof section 212 and the tail section 213 are all covered on the periphery of the insulating body 11; there is an avoidance gap 2132 between the inner wall surface of the connection between the tail section 213 and the waterproof section 212 and the outer wall surface of the insulating body 11 in the radial direction, and a plurality of first anti-sway ribs 2131 are radially protruded on the inner wall surface of the tail section 213 or the outer wall surface of the insulating body 11 corresponding to the tail section 213; Figure 6 As shown, the inner side of the tail section 213 has two first inner wall surfaces 2135 arranged opposite to each other and two inner connecting surfaces 2136 connecting the two opposite first inner wall surfaces 2135. The two inner connecting surfaces 2136 are also arranged opposite to each other. In this embodiment, the area of ​​each first inner wall surface 2135 is greater than the area of ​​each inner connecting surface 2136. The two opposite first inner wall surfaces 2135 and the two opposite inner connecting surfaces 2136 together form a closed shape. The two first inner wall surfaces 2135 are respectively provided with a plurality of first anti-sway ribs 2131 integrally and symmetrically arranged. The two inner connecting surfaces 2136 are respectively provided with a first anti-sway rib 2131 integrally and symmetrically arranged. The outer wall surface of one end of the plurality of first anti-sway ribs 2131 close to the waterproof section 212 and the inner wall surface of the tail section 213 form a first guide slope 2133. The inner wall surface of the end of the insertion section 211 away from the waterproof section 212 is provided with a second guide slope 2111. As shown Figures 1 to 3 and Figure 5 , Fig.10As shown, a ring-shaped sealing groove 222 is axially recessed on one side surface of the mounting portion 22 close to the insertion section 211, and a sealing ring 3 is disposed in the sealing groove 222 to be sealed with the housing 5 to prevent water vapor from entering the housing 5 from the gap between the housing 5 and the mounting portion 22. A plurality of cutout grooves 221 are axially recessed on the other side surface of the mounting portion 22 close to the tail section 213. In the radial direction, the plurality of cutout grooves 221 are located between the sealing groove 222 and the main body 21 to ensure that the overall wall thickness of the mounting portion 22 is uniform. The mounting portion 22 is provided with a plurality of first fixing holes 224 near the edges thereof for being fastened to the housing 5. In the radial direction, the plurality of first fixing holes 224 are located on the outside of the sealing groove 222. A groove 223 is axially recessed on a surface of one side of the mounting portion 22 close to the insertion section 211. In the radial direction, the groove 223 is located between the plurality of first fixing holes 224 and the sealing groove 222. A side wall of the groove 223 away from the first fixing holes 224 forms an arc-shaped chamfer 2231 with the bottom wall of the groove 223 to disperse the installation stress when the plurality of first fixing holes 224 are fastened to the housing 5, enhance the elastic deformation capacity of the mounting portion 22, avoid excessive stress concentration during fastening and installation to cause the mounting portion 22 to break, and ensure the structural stability of the sheath 2. The outer wall surface of one end of the tail section 213 away from the waterproof section 212 and the side surface of the mounting portion 22 close to the tail section 213 are integrally connected with a plurality of reinforcing ribs 2134, and the plurality of reinforcing ribs 2134 separate the plurality of material groovings 221. Each reinforcing rib 2134 is aligned with each corresponding first anti-sway rib 2131 provided on the inner wall surface of the tail section 213 to reinforce each corresponding first anti-sway rib 2131 so as to enhance the strength of each corresponding first anti-sway rib 2131.

[0034] like Figure 1 , Figure 5 and Figure 6 As shown, the seal 4 is accommodated in the recessed portion 111 and seals the gap between the inner wall surface of the waterproof section 212 and the recessed portion 111, preventing water vapor from entering the housing 5 through the gap between the waterproof section 212 and the inner wall surface and the recessed portion 111 to affect the normal use of the electrical connector assembly, thereby improving the waterproof performance of the electrical connector assembly.

[0035] like Figures 1 to 10As shown, the electrical connector 1 is assembled to the housing 5 along the axial direction, a portion of the insulating body 11 is located outside the housing 5 to dock with the corresponding docking element, and the other portion is located inside the housing 5 to dock with the corresponding other docking element. The portion of the insulating body 11 located inside the housing 5 is protruded with a mounting plate 117 along the radial direction, and a plurality of second fixing holes 1171 of the mounting plate 117 are fastened to a panel (not shown) inside the housing 5 to fix the electrical connector 1 to the housing 5. The insertion section 211 of the sheath 2 is inserted between the insulating body 11 and the housing 5 along the axial direction from one end of the insulating body 11 located outside the housing 5, so that the insertion section 211, the waterproof section 212 and the tail section 213 are all covered on the outside of the insulating body 11, the insertion section 211 is inserted into the housing 5, and the tail section 213 is located outside the housing 5. The seal 4 seals the gap between the waterproof section 212 and the insulating body 11. In the axial direction, one end of the insulating body 11 is exposed outside the tail section 213 to dock with the docking element, and the other end of the insulating body 11 is exposed outside the insertion section 211 to dock with another docking element. The mounting plate 117 is radially protruded from the outer wall surface of the insulating body 11 on one side outside the insertion section 211. In the present embodiment, a plurality of first anti-sway ribs 2131 are formed along the radial direction from the inner wall surface of one end of the tail section 213 away from the waterproof section 212. When the insertion section 211 is inserted between the insulating body 11 and the housing 5 along the axial direction, the plurality of first anti-sway ribs 2131 are located at the rear end in the plug-in direction to prevent the first anti-sway ribs 2131 from colliding with the insulating body 11 in advance during the insertion process of the sheath 2, thereby facilitating the assembly of the sheath 2. The plurality of first anti-sway ribs 2131 and the plurality of second anti-sway ribs 113 are respectively arranged on both sides of the seal 4 along the axial direction. The provision of the plurality of second anti-sway ribs 113 further prevents the electrical connector 1 from shaking along the radial direction during the assembly of the sheath 2, thereby doubly insuring the sealing effect of the seal 4 and improving the waterproof performance of the electrical connector assembly. The first guide bevel 2133 and the second guide bevel 2111 jointly guide the insertion section 211 to be inserted between the insulating body 11 and the housing 5 along the axial direction, thereby facilitating assembly and insertion.The size of the multiple first anti-sway ribs 2131 protruding in the radial direction is smaller than the size of the avoidance gap 2132 in the radial direction, which makes it easier for the sheath 2 to be sleeved on the outer periphery of the insulating body 11. The multiple first anti-sway ribs 2131 are used to precisely position the electrical connector assembly to prevent the electrical connector assembly from shaking and offsetting with the electrical connector 1 during the assembly process with the housing 5, thereby preventing the seal 4 from being excessively squeezed and torn, resulting in sealing failure, thereby ensuring the structural stability of the electrical connector assembly and improving the waterproof performance of the electrical connector assembly; in the axial direction, the multiple first anti-sway ribs 2131 are arranged on the outer periphery of the insulating body 11, and the electrical connector assembly is precisely positioned to prevent the electrical connector assembly from shaking and offsetting with the electrical connector 1 during the assembly process with the housing 5, thereby preventing the seal 4 from being excessively squeezed and torn ... preventing the seal from failing, and ensuring the structural stability of the electrical connector assembly. The length of the rib 2131 along the axial direction is smaller than the length of the tail section 213, and there is a spacing area 112 between the recessed portion 111 and the second anti-sway rib 113, that is, the seal 4 and each first anti-sway rib 2131 and each second anti-sway rib 113 are spaced apart, so as to facilitate the guiding sleeve 2 to be sleeved on the outer periphery of the insulating body 11 along the axial direction, and prevent each first anti-sway rib 2131 and each second anti-sway rib 113 from squeezing and wearing the seal 4 to cause the sealing effect of the seal 4 to fail, thereby improving the waterproof performance of the electrical connector assembly. In the radial direction, the multiple second anti-sway ribs 113 arranged on the two opposite first outer wall surfaces 114 are symmetrically arranged, and the second anti-sway ribs 113 arranged on the two opposite outer connecting surfaces 115 are symmetrically arranged. The two opposite first inner wall surfaces 2135 and the two opposite inner connecting surfaces 2136 of the tail section 213 are jointly arranged on the periphery of the insulating body 11. The multiple first anti-sway ribs 2131 arranged on the two opposite first inner wall surfaces 2135 of the tail section 213 are symmetrically arranged, and the first anti-sway ribs 2131 arranged on the two opposite inner connecting surfaces 2136 of the tail section 213 are symmetrically arranged. When the insulating body 11 and the sheath 2 are installed, no matter in which direction the insulating body 11 and the sheath 2 are offset and swayed, the multiple first anti-sway ribs 2131 and the multiple second anti-sway ribs 113 can effectively stop them, and the same force is applied to the insulating body 11, ensuring that the insulating body 11 is in a centered state in the sheath 2, so as to ensure the waterproof effect of the seal 4.

[0036] In summary, the electrical connector assembly of the utility model has the following beneficial effects:

[0037] (1) The sealing member 4 is disposed between the insulating body 11 and the waterproof section 212 of the sheath 2, and seals the gap between the inner wall surface of the sheath 2 and the outer wall surface of the insulating body 11, thereby preventing water vapor from entering the housing 5 from the gap between the main body 21 and the insulating body 11, thereby improving the waterproof performance of the electrical connector assembly; the inner wall surface of the tail section 213 or the outer wall surface of the insulating body 11 corresponding to the tail section 213 is radially protruded with a first anti-sway rib 2131, and the protruding dimension of the first anti-sway rib 2131 along the radial direction is smaller than the dimension of the avoidance gap 2132 along the radial direction, and the first anti-sway rib 2131 is radially protruded with a first anti-sway rib 2131. The setting of 2131 enables the electrical connector assembly to be precisely positioned, preventing the seal 4 from being excessively squeezed and torn, resulting in seal failure, due to the shaking and offset of the electrical connector 1 and the sheath 2 in the radial direction during the assembly of the electrical connector assembly with the housing 5, thereby ensuring the structural stability of the electrical connector assembly and improving the waterproof performance of the electrical connector 1; in the axial direction, the seal 4 and the first anti-sway rib 2131 are spaced apart, preventing the first anti-sway rib 2131 from squeezing and wearing the seal 4 during the assembly process, thereby causing the seal 4 to fail, thereby improving the waterproof performance of the electrical connector assembly.

[0038] (2) A plurality of first anti-sway ribs 2131 are formed along a radial direction from the inner wall surface of one end of the tail section 213 away from the waterproof section 212. When the sheath 2 is inserted between the insulating body 11 and the housing 5 along the axial direction, the plurality of first anti-sway ribs 2131 are located at the rear end in the plug-in direction, so as to prevent the first anti-sway ribs 2131 from colliding with the insulating body 11 in advance during the insertion process of the sheath 2, thereby facilitating the assembly of the sheath 2.

[0039] (3) A plurality of first anti-sway ribs 2131 and a plurality of second anti-sway ribs 113 are respectively arranged on both sides of the seal 4 along the axial direction. The arrangement of the plurality of first anti-sway ribs 2131 and the plurality of second anti-sway ribs 113 can jointly prevent the electrical connector 1 from shaking in the radial direction during the assembly process of the sheath 2, thereby doubly ensuring the sealing effect of the seal 4 and improving the waterproof performance of the electrical connector assembly; the seal 4 and each first anti-sway rib 2131 and each second anti-sway rib 113 are arranged at intervals to prevent each first anti-sway rib 2131 and each second anti-sway rib 113 from squeezing and wearing the seal 4, causing the sealing effect of the seal 4 to fail, thereby improving the waterproof performance of the electrical connector assembly.

[0040] (4) The two opposite first outer wall surfaces 114 of the insulating body 11 are respectively provided with a plurality of second anti-sway ribs 113 integrally and symmetrically arranged, the two opposite outer connecting surfaces 115 are respectively provided with a second anti-sway rib 113 integrally and symmetrically arranged, the two first inner wall surfaces 2135 of the tail section 213 are respectively provided with a plurality of first anti-sway ribs 2131 integrally and symmetrically arranged, the two inner connecting surfaces 2136 are respectively provided with a first anti-sway rib 2131 integrally and symmetrically arranged. When the insulating body 11 and the sheath 2 are installed, the two opposite first inner wall surfaces 2135 of the tail section 213 and the two opposite inner connecting surfaces 2136 are jointly arranged around the periphery of the insulating body 11. No matter in which direction the insulating body 11 and the sheath 2 are offset and shaken, the plurality of first anti-sway ribs 2131 and the plurality of second anti-sway ribs 113 can effectively stop them, and the same force is applied to the insulating body 11, thereby ensuring that the insulating body 11 is centered in the sheath 2 and ensuring the waterproof effect of the seal 4.

[0041] (5) A sealing groove 222 is axially recessed on one side surface of the mounting portion 22. A sealing ring 3 is disposed in the sealing groove 222 to seal the gap between the housing 5 and the mounting portion 22, thereby preventing moisture from entering the housing 5 through the gap between the housing 5 and the mounting portion 22. A plurality of material removal grooves 221 are axially recessed on the other side surface of the mounting portion 22 to ensure that the overall wall thickness of the mounting portion 22 is uniform.

[0042] (6) A side wall of the groove 223 away from the first fixing hole 224 forms an arc-shaped chamfer 2231 with the bottom wall of the groove 223, so as to disperse the installation stress when the multiple first fixing holes 224 and the housing 5 are fastened and installed, enhance the elastic deformation capacity of the installation portion 22, avoid excessive concentration of stress during fastening and installation, and cause the installation portion 22 to break, thereby ensuring the structural stability of the sheath 2.

[0043] (7) Each reinforcing rib 2134 is aligned with each corresponding first anti-sway rib 2131 disposed on the inner wall surface of the tail section 213 to enhance the strength of each corresponding first anti-sway rib 2131 and increase its service life.

[0044] (8) The insulating body 11 is injection molded on the two terminal modules 13 that are assembled in a stacked manner. The insulating material of the insulating body 11 fills the multiple through grooves 131 and the assembly gap between the two terminal modules 13, so that the two terminal modules 13 are more tightly combined, ensuring that the waterproofness of the electrical connector 1 will not be affected by the expansion of the assembly gap under the influence of high and low temperatures or other environmental factors, thereby improving the waterproof performance of the electrical connector 1.

[0045] The above detailed description is only an explanation of the preferred embodiment of the utility model, and does not limit the patent scope of the utility model. Therefore, all equivalent technical changes made by using the description and illustrations of this creation are included in the patent scope of this creation.

Claims

1. An electrical connector assembly for fixed installation in a housing, characterized in that: include: An electrical connector, comprising an insulating body and a terminal disposed on the insulating body; A sheath, the sheath comprising a main body extending in an axial direction and a mounting portion extending in a radial direction from an outer wall surface of the main body for being assembled and fixed with the housing, the main body being a cavity penetratingly arranged in an axial direction for accommodating the electrical connector, the main body comprising an insertion section located on one side of the mounting portion in an axial direction, a tail section located on the other side of the mounting portion, and a waterproof section located between the insertion section and the tail section, the insertion section being sleeved on the periphery of the insulating body from one end of the insulating body in an axial direction and inserted into the housing, so that the insertion section, the waterproof section and the tail section are all covered on the periphery of the insulating body, an avoidance gap is provided in a radial direction between a connection between the tail section and the waterproof section and an outer wall surface of the insulating body, a first anti-sway rib is radially protruded on the inner wall surface of the tail section or on the outer wall surface of the insulating body corresponding to the tail section, and in a radial direction, a protruding dimension of the first anti-sway rib is smaller than a dimension of the avoidance gap in a radial direction; A sealing member is arranged between the insulating body and the waterproof section to seal the gap between the inner wall surface of the waterproof section and the outer wall surface of the insulating body. In the axial direction, the sealing member is spaced apart from the first anti-sway rib.

2. The electrical connector assembly according to claim 1, wherein: The first anti-sway rib is protruded in the radial direction from the inner wall surface of one end of the tail section away from the waterproof section, and the length of the first anti-sway rib in the axial direction is smaller than the length of the tail section.

3. The electrical connector assembly according to claim 2, wherein: A first guiding slope is provided at one end of the first anti-sway rib close to the waterproof section, and a second guiding slope is provided on the inner wall surface of one end of the insertion section away from the waterproof section. The first guiding slope and the second guiding slope jointly guide the insertion section to be inserted between the insulating body and the casing along the axial direction.

4. The electrical connector assembly according to claim 1, wherein: The inner side of the tail section has two first inner wall surfaces arranged opposite to each other and two inner connecting surfaces connecting the two opposite first inner wall surfaces. The two first inner wall surfaces are respectively integrally provided with a plurality of the first anti-sway ribs and are symmetrically arranged with each other. The two inner connecting surfaces are respectively integrally provided with one first anti-sway rib and are symmetrically arranged with each other.

5. The electrical connector assembly according to claim 1, wherein: A recessed portion is recessed along the radial direction from the outer wall surface of the insulating body, and the seal is accommodated in the recessed portion. A second anti-sway rib is radially protruded from the outer wall surface of the insulating body corresponding to the insertion section, and a spacing area is provided between the recessed portion and the second anti-sway rib. In the axial direction, the seal is located between the second anti-sway rib and the first anti-sway rib.

6. The electrical connector assembly according to claim 5, wherein: The outer side of the insulating body has two first outer wall surfaces arranged opposite to each other and two external connecting surfaces connecting the two opposite first outer wall surfaces. The two first outer wall surfaces are respectively integrally provided with a plurality of the second anti-sway ribs and are symmetrically arranged with each other. The two external connecting surfaces are respectively integrally provided with a plurality of the second anti-sway ribs and are symmetrically arranged with each other.

7. The electrical connector assembly according to claim 1, wherein: A sealing groove is axially recessed on one side surface of the mounting portion close to the insertion section, a sealing ring is provided in the sealing groove for sealing installation with the casing, and a plurality of material recesses are axially recessed on the other side surface of the mounting portion close to the tail section, and the plurality of material recesses are located between the sealing groove and the main body in the radial direction.

8. The electrical connector assembly according to claim 7, wherein: The mounting portion is provided with a first fixing hole near the edges thereof for fastening with the housing, the first fixing hole being located on the outside of the sealing groove in the radial direction, a groove being axially recessed on a side surface of the mounting portion close to the insertion section, the groove being located between the first fixing hole and the sealing groove in the radial direction, and a side wall of the groove away from the first fixing hole forming a chamfer with a bottom wall of the groove.

9. The electrical connector assembly according to claim 1, wherein: The insertion section is inserted between the insulating body and the casing along the axial direction, the tail section is located outside the casing, the outer wall surface of the tail section at one end away from the waterproof section is integrally connected to the mounting portion with a reinforcing rib, and the reinforcing rib is aligned in the radial direction with the corresponding first anti-sway rib arranged on the inner wall surface of the tail section.

10. The electrical connector assembly according to claim 1, wherein: One end of the insulating body is exposed outside the tail section and is provided with a pair of interfaces, and the other end of the insulating body opposite to the insulating body is exposed outside the insertion section and is provided with another pair of interfaces. The insulating body is provided with a plurality of the terminals, and each of the terminals is provided with a contact portion at both ends along the axial direction, which is respectively located in the two corresponding interfaces. The plurality of terminals are arranged in two rows, and the two rows of terminals are respectively injection molded into two terminal modules, and the two terminal modules are respectively provided with through grooves. The two terminal modules are stacked and assembled, and the through grooves of the two terminal modules are respectively arranged to communicate with each other. The insulating body is injection molded on the two stacked and assembled terminal modules, and the through grooves are filled with the insulating material of the insulating body.

11. The electrical connector assembly according to claim 1, wherein: A portion of the insulating body is located in the casing, and a mounting plate is radially protruded from the portion of the insulating body located in the casing. The mounting plate and the sleeve are spaced apart in the axial direction, and the mounting plate is provided with a plurality of second fixing holes, and the plurality of second fixing holes are used to install fasteners.

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