Connector housing and connector assembly

Abstract

The utility model relates to a connector shell and a connector assembly, which can improve the operation flexibility and meet the sealing requirement. The connector shell comprises an outer shell and a rear cover, the rear cover is composed of a first half shell and a second half shell, each half shell comprises a top wall, a bottom wall, a side wall and a rear wall, the top walls of the two half shells are integrally formed, the bottom walls are separated, an opening is formed in the separation position, and the rear walls are provided with semicircular enclosure bulkheads respectively. The two bottom walls are provided with buckle structures, the buckle structures are buckled, the rear cover is closed, and the semicircular surrounding walls are spliced to form a cable channel. The tail end of the shell is provided with two wedge-shaped protrusions, two side walls of the shell are respectively provided with a fixing groove, and the shell and the rear cover are fixed through the wedge-shaped protrusions and the fixing grooves. The connector assembly comprises a wire end connector, a wire harness sealing ring, an outer rubber core and a connector shell. The shell sleeves the periphery of the outer rubber core; the wire end connector is positioned in the outer rubber core and comprises a cable, a terminal, an inner rubber core and an outer conductor; the rear cover covers the outer rubber core and the tail end of the shell, and the cable channel extends into the outer rubber core and abuts against a wire harness sealing ring on the cable.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of connector, specifically a connector shell and connector assembly. BACKGROUND

[0002] As the core device for signal, current and data transmission in electronic equipment, the connector is widely used in consumer electronics, communication and automobile fields. In the structural design of the connector, the rear cover needs to be closely attached to the sealing ring of the wire harness and form moderate extrusion, so that the sealing ring can fill the gap between the outer periphery of the cable and the connector shell, thereby effectively blocking the intrusion of water vapor and dust into the interior of the connector, and providing reliable sealing protection for the core conductive components. Because the aperture of the traditional connector rear cover is smaller than the size of the connector, the rear cover needs to be pre-assembled on the cable during assembly, and then the cable is processed and the connector is assembled. This "first sleeve and then assemble" sequence not only reduces the operation flexibility, but also easily interferes with the cable or connector components during subsequent processing, which brings inconvenience to actual operation.

[0003] Therefore, it is necessary to improve the structure to solve the above problems. SUMMARY

[0004] The utility model provides a kind of connector shell and connector assembly, break the traditional assembly sequence limit, first complete the processing and assembly of connector, then install rear cover, and overall assembly flexibility improves. The purpose of the utility model is achieved by the following scheme:

[0005] The utility model provides a connector housing, which comprises a shell and a rear cover sleeved at the tail end of the shell, the rear cover is composed of a first half shell and a second half shell which can be closed, the first half shell and the second half shell each comprise a top wall, a bottom wall, a side wall and a rear wall, the top walls of the two half shells are integrally formed, the bottom walls are separated from each other and an opening for a cable to extend into is formed between the bottom walls, and the rear walls are respectively provided with semicircular enclosing walls; the bottom walls of the first half shell and the second half shell are provided with buckling structures matched with each other, when the buckling structures are buckled, the rear cover is closed, and the semicircular enclosing walls are spliced to form a cable channel; the tail end of the shell is provided with two wedge-shaped protrusions, the side walls of the first half shell and the second half shell are each provided with a fixing groove, and the closed rear cover is fixed on the shell by clamping the wedge-shaped protrusions in the fixing grooves. The rear cover comprises a rear wall and four side walls perpendicular to the rear wall, the rear cover is split into the first half shell and the second half shell which are matched with each other, the rear wall and the bottom side wall of the original rear cover are divided into two parts to form the rear wall and the bottom wall of the first half shell and the rear wall and the bottom wall of the second half shell respectively. In order to realize the opening and closing of the rear cover, the top walls of the first half shell and the second half shell which are the rotation base points are integrally formed, an opening is arranged between the bottom walls of the two half shells, the cable extends into the semicircular enclosing walls from the opening, the buckling structures on the bottom walls are buckled to close the two half shells to form a complete rear cover structure, and the two semicircular enclosing walls are spliced to form a cable channel. The tail end of the shell is provided with a wedge-shaped protrusion on each side, the side walls of the first half shell and the second half shell are each provided with a fixing groove, the closed rear cover on the cable is pushed forward to the tail end of the shell, the wedge-shaped protrusions are clamped in the fixing grooves, and the rear cover is fixed on the shell. The rear cover in the utility model is an open structure at one end, the rear cover can be sleeved on the outer periphery of the cable after the cable processing and connector assembly processes are completed. Since the rear cover does not need to be pre-installed on the cable, the interference on the cable processing can be reduced, and the operation flexibility is improved; when the assembly is poor, the rear cover dismounting and mounting processes are saved, and the assembly is more convenient.

[0006] Preferably, the inner side of the bottom wall of the first half shell is provided with two first convex ribs, a first convex rib groove is formed between the two first convex ribs; the inner side of the bottom wall of the second half shell is provided with two second convex ribs, a second convex rib groove is formed between the two second convex ribs; the tail end of the shell is provided with two outer convex ribs, the two outer convex ribs are respectively buckled in the first convex rib groove and the second convex rib groove and form a horizontal constraint on the rear cover. The first half shell and the second half shell are respectively provided with the first convex rib groove and the second convex rib groove on the two sides of the buckling structure, the two outer convex ribs of the tail end of the shell gradually extend into the first convex rib groove and the second convex rib groove when the closed rear cover is closed on the tail end of the shell, the outer convex ribs and the first convex rib groove and the second convex rib groove are matched with each other to horizontally limit the buckling structure, and the left and right opening of the rear cover is prevented.

[0007] Preferably, the rear walls of the first and second half shells have first and second abutting edges, respectively, the upper and lower portions of each abutting edge are staggered front-to-back, and the upper and lower portions of the two abutting edges are also staggered front-to-back, the staggered interlocking structure of the abutting edges limits the rear cover in the front-to-back direction. After the two half shells are closed, the first and second abutting edges are spliced and fitted with each other, on the one hand, the upper portion of the first abutting edge and the upper portion of the second abutting edge, and the lower portion of the first abutting edge and the lower portion of the second abutting edge are staggered front-to-back, which blocks the penetration of water vapor and dust from the gap between the abutting edges, and improves the overall sealing performance of the rear cover; on the other hand, the upper and lower portions of the first abutting edge and the upper and lower portions of the second abutting edge are also staggered front-to-back, and the front-to-back limit is achieved by the interlocking between the first and second abutting edges, preventing the two half shells from being staggered front-to-back during assembly or use.

[0008] Preferably, a connector assembly includes any of the above connector housings, and further includes a wire end connector, a wire harness sealing ring, and an outer rubber core; the outer shell is sleeved on the outer periphery of the outer rubber core, the wire end connector is assembled in the inner portion of the outer rubber core, and the wire end connector includes a cable, a terminal, an inner rubber core, and an outer conductor; the rear cover is covered on the tail end of the outer rubber core and the outer shell, and the cable channel formed thereby extends into the inner portion of the outer rubber core and abuts against the wire harness sealing ring sleeved on the cable, thereby forming reliable sealing of the gap between the cable and the shell. The assembly sequence of the overall connector assembly is as follows: after the wire harness sealing ring is sleeved on the outer periphery of the cable, the cable is processed to assemble the wire end connector; after the outer shell is sleeved on the surface of the outer rubber core, the wire end connector is assembled in the outer rubber core; the rear cover is sleeved on the cable by using the opening structure, and the closed rear cover is pushed forward, so that the rear cover is fixed at the tail portion of the outer shell. After assembly is completed, the cable channel in the inner portion of the rear cover extends into the inner portion of the outer rubber core and abuts against the wire harness sealing ring, and the rear cover and the wire harness sealing ring cooperate to seal and protect the connector assembly, preventing water vapor and dust from penetrating from the joint between the cable and the connector shell.

[0009] Preferably, the inner rubber core tail portion is provided with a clamping tooth, and the inner wall of the outer rubber core is correspondingly provided with a retreat prevention portion, when the wire end connector is assembled into the outer rubber core from the rear, the clamping tooth abuts against the retreat prevention portion to prevent the wire end connector from being displaced rearward; the connector assembly further includes a locking member, the top portion of the locking member is provided with a first limiting protrusion, the top portion of the outer rubber core is correspondingly provided with a first limiting hole, the locking member is inserted from one side of the wire end connector and penetrates to the other side, and the first limiting protrusion is clamped in the first limiting hole to prevent the wire end connector from being displaced forward. The clamping tooth abutting against the retreat prevention portion and the first limiting protrusion embedded in the first limiting hole cooperate to limit the displacement of the wire end connector in the inner portion of the outer rubber core. The locking member has a structure of one wide end and one narrow end, which can avoid incorrect assembly and has a foolproof function. When the locking member is installed and fixed laterally in the outer rubber core, the inner rubber core of the wire end connector and the terminal nested in the inner rubber core can be simultaneously limited, ensuring stable contact.

[0010] Preferably, the inner wall of the shell is provided with a second limiting protrusion, and the tail of the outer rubber core is correspondingly provided with a second limiting hole, the second limiting protrusion and the second limiting hole are in clamping connection, and the axial displacement of the outer rubber core is limited; the inner side of the tail of the shell is provided with at least two limiting ribs, and the tail end of the outer rubber core is correspondingly provided with a same number of rib position grooves, the limiting ribs are assembled in the rib position grooves, and the radial displacement of the outer rubber core is limited. In the assembly process of the shell and the outer rubber core, the second limiting protrusion and the second limiting hole are matched to restrict the shell from continuing to advance forward, and the limiting ribs are clamped in the rib position grooves, so that the outer rubber core is prevented from shaking inside the shell.

[0011] Preferably, the connector assembly further comprises at least two elastic sheets, the elastic sheet comprises an elastic contact part, an interference part, an anti-dropping part and a wing part, the wing part and the interference part are located at the upper and lower ends of the elastic sheet respectively, and the elastic contact part and the anti-dropping part are both formed by extending from the same side of the elastic sheet; the two sides of the outer rubber core are provided with elastic sheet grooves, and the elastic sheets are preassembled from the side of the outer rubber core and then pressed downward, the interference part is embedded in the elastic sheet groove to form preliminary fixation, and the wing part extends into the elastic sheet groove to prevent lateral falling; the anti-dropping part is buckled on the surface of the outer rubber core by bending to form secondary limiting. In the assembly process of the connector element and the mating element, the elastic contact part of the elastic sheet is in contact with the mating element and forms mechanical limiting, so that the locking is tight and not easy to loosen. When the elastic sheet is installed, the elastic sheet is first placed in the preassembled position from the side, then the elastic sheet is pressed downward, the interference part is embedded in the elastic sheet groove to form preliminary fixation, and the wing part of the elastic sheet extends into the elastic sheet groove to prevent lateral falling; finally, the anti-dropping part is bent to form a bent chamfer buckled on the surface of the outer rubber core, limiting the elastic sheet from being withdrawn in the direction of being installed.

[0012] Preferably, the connector assembly further comprises an interface sealing ring, the interface sealing ring is sleeved on the tail of the outer rubber core, and is used for sealing the assembly interface of the connector assembly and the mating element. After the interface sealing ring is sleeved on the outer rubber core, the shell and the outer rubber core are fixed, then the wire end connector is assembled in the outer rubber core, and finally the rear cover is installed.

[0013] The beneficial effects of the utility model lie in: provide a kind of connector shell and connector assembly, and the rear cover of the utility model adopts the design of splicing closure, changes original assembly sequence, without pre-installing rear cover into cable and then processing connector, and assembly is more convenient;Two half shells are closed by buckle structure, outer convex rib and first, second convex rib groove can prevent two half shells from opening left and right, and the first, second abutting edges of two half shells are staggered to form forward and backward limiting constraints, and three structures form closed loop protection, to ensure the sealing reliability of open rear cover;The cable channel of rear cover extends into outer rubber core and wire harness sealing ring abutment, effectively seals the gap between cable and shell, and guarantees the overall sealing performance of cable assembly. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the overall schematic view of a connector assembly in the embodiment of the utility model;

[0015] Figure 2 It is the exploded schematic view of a connector assembly in the embodiment of the utility model;

[0016] Figure 3 It is the sectional view of a connector assembly in the embodiment of the utility model;

[0017] Figure 4 It is the partial exploded schematic view of a connector assembly in the embodiment of the utility model;

[0018] Figure 5 It is the partial exploded schematic view of a connector assembly in the embodiment of the utility model;

[0019] Figure 6 It is the schematic view of the rear cover (un-closed state) in the embodiment of the utility model;

[0020] Figure 7 It is the schematic view of the rear cover (un-closed state) in the embodiment of the utility model from another perspective;

[0021] Figure 8 It is the sectional view of the connector shell in the embodiment of the utility model;

[0022] Figure 9 It is the sectional view of the locking piece in the embodiment of the utility model;

[0023] Figure 10 It is the installation schematic view of the elastic sheet in the embodiment of the utility model.

[0024] The reference signs in the description accompanying drawings include:

[0025] Connector assembly-1;

[0026] Connector shell-2, shell-21, wedge-shaped protrusion-211, outer convex rib-212, second limiting protrusion-213, limiting rib-214;

[0027] Rear cover-22, first half shell-221, first top wall-2211, first bottom wall-2212, first side wall-2213, first rear wall-2214, first convex rib-2215, first convex rib groove-2216, first butt joint edge-2217, first semicircular enclosing wall-2218, second half shell-222, second top wall-2221, second bottom wall-2222, second side wall-2223, second rear wall-2224, second convex rib-2225, second convex rib groove-2226, second butt joint edge-2227, second semicircular enclosing wall-2228, buckle structure-223, cable passage-224, fixing groove-225;

[0028] wire end connector-31, cable-311, terminal-312, inner rubber core-313, clamping tooth-3131, outer conductor-314;

[0029] outer rubber core-41, anti-back-off part-411, first limiting hole-412, second limiting hole-413, rib groove-414, elastic sheet groove-415;

[0030] locking part-51, first limiting protrusion-511;

[0031] wire harness sealing ring-61;

[0032] interface sealing ring-71;

[0033] elastic sheet-81, elastic contact part-811, interference part-812, anti-falling part-813, wing part-814. DETAILED DESCRIPTION

[0034] The embodiment of the present application provides a connector shell and a connector assembly, optimizes product assembly sequence, and reduces the influence of pre-installed rear cover on the assembly process.

[0035] The technical scheme in the embodiment of the present application is used for solving the above technical problem, and the overall idea is as follows:

[0036] A connector shell comprises a shell and a rear cover sleeved at the tail end of the shell, the rear cover is composed of a first half shell and a second half shell which can be spliced and closed, the top of the two half shells is connected, and the bottom is provided with an opening; after a wire end connector is installed on an inner rubber core, the rear cover is sleeved on a cable by using the opening structure, a buckle structure at the bottom of the rear cover is pressed to close the opening; the closed rear cover is pushed forward, a fixing groove on the rear cover is matched with a wedge-shaped protrusion on the shell, and the rear cover is fixed on the shell; a cable channel formed in the rear cover abuts against a wire harness sealing ring, and the gap between the shell and the tail of the cable is sealed. On this basis, a first rib groove and a second rib groove are arranged on the two sides of the buckle structure at the bottom of the rear cover, two outer ribs are correspondingly arranged at the bottom of the shell, the outer ribs extend into the first and second rib grooves to prevent the rear cover from being opened left and right, and the first and second abutting edges of the two half shells of the rear cover are staggered front and back to play a front and back limiting role. Through the above arrangement, the rear cover can be assembled after cable processing and connector assembly, and does not interfere with the processing of other components, so that the processing sequence of the connector assembly as a whole is more reasonable; meanwhile, the two half shells of the rear cover will not be displaced in the front and back and left and right directions, and the sealing performance of the connector assembly as a whole is not affected by the arrangement of the opening rear cover.

[0037] For the above purposes, features and advantages of the present application to be more apparent and understandable, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, a number of specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different manners different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, therefore, the present application is not limited to the specific embodiments disclosed below.

[0038] As shown in Figures 1 to 10 , for an embodiment of a connector housing and a connector assembly in the present application:

[0039] As shown in Figures 1 to 5 , a connector housing 2 comprises a shell 21 and a rear cover 22 sleeved at the tail end of the shell 21.

[0040] As shown in Figure 6 and Figure 7 , the rear cover 22 is an open-ended structure composed of a first half shell 221 and a second half shell 222 spliced with each other, the first half shell 221 comprises a first top wall 2211, a first bottom wall 2212, a first side wall 2213 and a first rear wall 2214, the second half shell 222 comprises a second top wall 2221, a second bottom wall 2222, a second side wall 2223 and a second rear wall 2224, the first top wall 2211 and the second top wall 2221 are integrally connected, the first bottom wall 2212 and the second bottom wall 2222 are separated from each other and are provided with an opening through which the cable 311 can pass. A buckle structure 223 matched with each other is arranged on the inner side of the first bottom wall 2212 and the second bottom wall 2222. By buckling the buckle structure 223, the aforementioned opening can be closed, and the first half shell 221 and the second half shell 222 are spliced together to form the rear cover 22.

[0041] As shown in Figure 8As shown, the tail end of the shell 21 is provided with two wedge-shaped protrusions 211, and the first side wall 2213 and the second side wall 2223 of the rear cover 22 are each provided with a fixing groove 225. When the wedge-shaped protrusions 211 are inserted into the fixing grooves 225, the closed rear cover 22 is stably fixed on the shell 21. In order to prevent the closed rear cover 22 from being opened left and right, the inner side of the first bottom wall 2212 is provided with two first convex ribs 2215, and the inner side of the second bottom wall 2222 is provided with two second convex ribs 2225. The first convex rib groove 2216 and the second convex rib groove 2226 are respectively formed between the two first convex ribs 2215 and between the two second convex ribs 2225. The tail part of the shell 21 is correspondingly provided with two outer convex ribs 212, which respectively extend into the first convex rib groove 2216 and the second convex rib groove 2226. Since the two outer convex ribs 212 are limited by the first convex rib groove 2216 and the second convex rib groove 2226, the buckle structure 223 located between the first convex rib groove 2216 and the second convex rib groove 2226 cannot be continuously opened, and the transverse displacement is limited.

[0042] As shown in Figure 4 and Figure 6 As shown, the first rear wall 2214 and the second rear wall 2224 are respectively provided with a first butt joint edge 2217 and a second butt joint edge 2227. The middle part of the first butt joint edge 2217 and the second butt joint edge 2227 is respectively provided with a semicircular wall (a first semicircular wall 2218 and a second semicircular wall 2228). When the rear cover 22 is closed, the first semicircular wall 2218 and the second semicircular wall 2228 are spliced to form a cable passage 224. In order to prevent the spliced part of the closed rear cover 22 from being displaced forward and backward to affect the sealing effect, the upper part and the lower part of the first butt joint edge 2217 and the upper part and the lower part of the second butt joint edge 2227 are staggered forward and backward. The upper part of the first butt joint edge 2217 and the upper part of the second butt joint edge 2227, and the lower part of the first butt joint edge 2217 and the lower part of the second butt joint edge 2227 are also staggered forward and backward. The first half shell 221 and the second half shell 222 are limited and constrained by the staggered interlocking mechanism.

[0043] As shown in Figures 1 to 5 As shown, the application also provides a connector assembly 1, which comprises the above-mentioned connector shell 2, and further comprises a wire end connector 31, an outer rubber core 41, a wire harness sealing ring 61, and an interface sealing ring 71. The wire end connector 31 is installed inside the outer rubber core 41, the outer rubber core 41 is installed in the shell 21, and the rear cover 22 is covered on the tail end of the outer rubber core 41 and the shell 21.

[0044] The wire end connector 31 includes a cable 311, a terminal 312, an inner rubber core 313, and an outer conductor 314. The wire harness sealing ring 61 is sleeved on the outer periphery of the cable 311, and then the cable 311 is processed, the wire end connector 31 is assembled, and the like. The assembled wire end connector 31 is loaded from the rear of the outer rubber core 41, and is fixed with the outer rubber core 41 through the following structure: the tail of the inner rubber core 313 of the wire end connector 31 is provided with a protruding catch 3131, and the inner wall of the outer rubber core 41 is correspondingly provided with a retreat prevention portion 411. When the wire end connector 31 is inserted from the rear of the outer rubber core 41, the catch 3131 is in abutting contact with the retreat prevention portion 411, so that the wire end connector 31 is prevented from being withdrawn along the insertion direction (as shown in Figure 3 ). The connector assembly 1 further includes a locking member 51. The top of the locking member 51 is provided with a first limiting protrusion 511, and the top of the outer rubber core 41 is correspondingly provided with a first limiting hole 412. During the process in which the locking member 51 is inserted into the outer rubber core 41 and the wire end connector 31 from the side, the first limiting protrusion 511 is clamped in the first limiting hole 412, so that the wire end connector 31 cannot continue to move forward in the outer rubber core 41. The catch 3131 and the retreat prevention portion 411, and the first limiting protrusion 511 and the first limiting hole 412 jointly limit the displacement of the wire end connector 31 in the outer rubber core 41 (as shown in Figure 9 ). The locking member 51 has a structure of one wide end and one narrow end, which avoids the locking member 51 being assembled in reverse, and plays a foolproof role. The laterally mounted locking member 51 not only fixes the wire end connector 31 in the outer rubber core 41, but also fixes the terminal 312 in the wire end connector 31, and limits the wire end connector 31 and the terminal 312 nested therein, so as to ensure stable contact.

[0045] The interface sealing ring 71 is used for sealing the assembly interface of the connector assembly 1 and the mating element. The interface sealing ring 71 is sleeved on the tail of the outer rubber core 41, and then the outer rubber core 41 is installed in the outer shell 21 (as shown in Figure 2 ). Specifically, the inner wall of the outer shell 21 is provided with a second limiting protrusion 213 and at least two limiting ribs 214, and the tail of the outer rubber core 41 is correspondingly provided with a second limiting hole 413 and a rib position slot 414. When the outer rubber core 41 is loaded from the rear of the outer shell 21, the second limiting protrusion 213 is embedded in the second limiting hole 413, so as to limit the axial displacement of the outer rubber core 41. At the same time, the limiting ribs 214 are assembled in the rib position slot 414, so as to limit the radial displacement of the outer rubber core 41, and avoid the outer rubber core 41 from shaking in the outer shell 21. The second limiting protrusion 213 and the second limiting hole 413, and the limiting ribs 214 and the rib position slot 414 jointly fix the outer rubber core 41 provided with the wire end connector 31 in the outer shell 21 (as shown in Figure 3 , Figure 8 , Figure 10 ).

[0046] Finally, the installation of the rear cover 22: the cable 311 of the wire end connector 31 extends into the first semicircular wall 2218 and the second semicircular wall 2228 from the opening at the bottom of the first half shell 221 and the second half shell 222, the buckle structure 223 at the bottom of the two half shells (221, 222) is pressed to close the rear cover 22, the first semicircular wall 2218 and the second semicircular wall 2228 are spliced to form a cable passage 224; the closed rear cover 22 is pushed forward until it is sleeved at the tail of the shell 21, the rear cover 22 is fixed with the shell 21 through the wedge-shaped protrusion 211 and the fixing groove 225, and the outer convex rib 212 of the shell 21 and the first convex rib groove 2216 and the second convex rib groove 2226 of the rear cover 22 are locked with each other, so that the rear cover 22 cannot be opened left and right; the cable passage 224 inside the rear cover 22 extends into the inner rubber core 41 and abuts against the wire harness sealing ring 61, and the rear cover 22 cooperates with the wire harness sealing ring 61 to seal the gap between the cable 311 and the tail of the shell, thereby preventing water vapor, dust and the like from entering (as shown in Figures 4 to 8 ).

[0047] As shown in Figure 10 , the connector assembly 1 is also provided with at least two elastic sheets 81 installed on both sides of the outer rubber core 41 for contacting and mechanically limiting the mating element. The elastic sheet 81 specifically includes an elastic contact portion 811, an interference portion 812, an anti-falling portion 813 and a wing portion 814, wherein the interference portion 812 is located on both sides of the lower end of the elastic sheet 81, the wing portion 814 is located on both sides of the upper end of the elastic sheet 81, and the elastic contact portion 811 and the anti-falling portion 813 are formed by the side wall of the elastic sheet 81. The outer rubber core 41 is provided with an elastic sheet groove 415 on both sides, and the assembly process of the elastic sheet 81 is as follows: first, the elastic sheet 81 is laterally preassembled on both sides of the outer rubber core 41, then it is pressed downward, so that the interference portion 812 at the lower end of the elastic sheet 81 is embedded in the groove wall of the elastic sheet groove 415 to form a preliminary fixation, at the same time, the wing portion 814 at the upper end of the elastic sheet 81 extends into the elastic sheet groove 415, and is constrained by the groove wall to prevent the elastic sheet 81 from falling off in the lateral direction; finally, the anti-falling portion 813 is bent to form a bent chamfer which is buckled on the outer rubber core 41, thereby limiting the elastic sheet 81 from being withdrawn in the assembly direction (as shown in Figure 9 ).

[0048] In summary, the utility model relates to a kind of connector shell and connector assembly, and its core improvement is that rear cover is designed as the structure of one end opening, this design directly changes original assembly sequence, so that rear cover does not need to be preassembled on cable, can realize "first assembly then sleeve", both reduce the interference of rear cover and other components of connector in assembly process, and improve operation flexibility and assembly efficiency;To avoid that opening structure influences protection performance, the first and second abutting edges of the two half shells of the rear cover are designed as staggered structure, and the cooperation locking structure of the first and second convex rib grooves of the rear cover and the outer convex rib of the shell is designed, which maximizes the sealing performance of the rear cover, meets the protection requirements of the connector for waterproof, dustproof and the like.

[0049] The technical features of the above-described embodiments can be combined in any manner. For the sake of brevity, not all possible combinations of the technical features in the above-described embodiments are described, however, as long as the combination of the technical features does not result in a contradiction, it should be considered to be within the scope of the present disclosure.

[0050] The above-described embodiments only express the implementation of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of protection of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A connector housing, comprising an outer shell and a rear cover sleeved on the tail end of the outer shell, characterized in that, The rear cover is composed of a first half-shell and a second half-shell that can be spliced ​​and closed. The first half-shell and the second half-shell each include a top wall, a bottom wall, a side wall and a rear wall. The top walls of the two half-shells are integrally formed, the bottom walls are separated from each other and an opening is formed at the separation point for cables to be inserted, and the rear walls are respectively provided with semi-circular enclosures. The bottom walls of the first half-shell and the second half-shell are provided with interlocking buckle structures. When the buckle structures are fastened, the rear cover is closed, and the semi-circular walls are spliced ​​together to form a cable channel. The outer shell has two wedge-shaped protrusions at its tail end, and each of the side walls of the first and second half shells has a fixing groove. By engaging the wedge-shaped protrusions in the fixing grooves, the closed rear cover is fixed to the outer shell.

2. A connector housing according to claim 1, characterized in that, The bottom wall of the first half-shell has two first ribs on its inner side, and a first rib groove is formed between the two first ribs; the bottom wall of the second half-shell has two second ribs on its inner side, and a second rib groove is formed between the two second ribs; the bottom of the tail end of the outer shell has two external ribs, and the two external ribs are respectively engaged in the first and second rib grooves and form a lateral constraint on the rear cover.

3. A connector housing according to claim 1, characterized in that, The rear walls of the first and second half-shells have a first mating edge and a second mating edge, respectively. The upper and lower parts of a single mating edge are staggered front to back, and the upper and lower parts of the two mating edges are also staggered front to back. The staggered interlocking structure of the mating edges forms a front-back direction limiting constraint on the rear cover.

4. A connector assembly, characterized in that, The connector housing according to any one of claims 1 to 3 further includes a wire end connector, a wire harness sealing ring, and an outer core; the outer housing is sleeved on the outer periphery of the outer core, the wire end connector is assembled inside the outer core, and the wire end connector includes a cable, a terminal, an inner core, and an outer conductor; the rear cover covers the ends of the outer core and the outer housing, and the cable channel formed thereon extends into the outer core and abuts against the wire harness sealing ring sleeved on the cable, forming a reliable seal for the gap between the cable and the housing.

5. A connector assembly according to claim 4, characterized in that, The inner core has a retaining tooth at its tail, and the inner wall of the outer core has a corresponding anti-retraction part. When the wire connector is inserted into the outer core from the rear, the retaining tooth abuts against the anti-retraction part to prevent the wire connector from moving backward. The connector assembly also includes a locking member. The top of the locking member has a first limiting protrusion, and the top of the outer core has a corresponding first limiting hole. The locking member is inserted from one side of the wire connector and passes through to the other side. The first limiting protrusion engages with the first limiting hole to prevent the wire connector from moving forward.

6. A connector assembly according to claim 5, characterized in that, The inner wall of the outer shell is provided with a second limiting protrusion, and the tail of the outer core is provided with a corresponding second limiting hole. The second limiting protrusion and the second limiting hole are engaged to restrict the axial displacement of the outer core. The inner side of the tail of the outer shell is provided with at least two limiting ribs, and the tail end of the outer core is provided with a corresponding number of rib grooves. The limiting ribs are assembled in the rib grooves to restrict the radial displacement of the outer core.

7. A connector assembly according to claim 6, characterized in that, The connector assembly further includes at least two spring contacts, each spring contact comprising an elastic contact portion, an interference portion, an anti-disengagement portion, and a wing portion. The wing portion and the interference portion are located at the upper and lower ends of the spring contact, respectively. The elastic contact portion and the anti-disengagement portion are both formed by extending from the same side of the spring contact. Spring contact grooves are provided on both sides of the outer rubber core. During assembly, spring contacts are pre-installed from the side of the outer rubber core and then pressed downwards. The interference portion is embedded in the spring contact groove to form a preliminary fixation, and the wing portion extends into the spring contact groove to prevent lateral disengagement. The anti-disengagement portion is bent and fastened to the surface of the outer rubber core to form a secondary limiting position.

8. A connector assembly according to claim 7, characterized in that, The connector assembly also includes an interface sealing ring, which is fitted onto the tail of the outer rubber core to seal the assembly interface between the connector assembly and the mating element.

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