Connector housing assembly and connector

Abstract

This utility model discloses a connector housing assembly and a connector. The connector housing assembly includes: an outer housing, including an outer peripheral wall forming an inner cavity and an inner peripheral wall formed in the inner cavity and radially spaced from the outer peripheral wall; a sealing ring, fitted onto the inner peripheral wall and adapted to be radially pressed between the inner peripheral wall and a mating housing inserted between the outer peripheral wall and the inner peripheral wall; an inner housing, inserted into the inner cavity of the outer housing and forming a terminal slot for inserting terminals; and a shielding shell, fitted onto the outside of the inner housing and installed in the inner cavity of the outer housing. A rear positioning portion is formed on the outer side of the inner peripheral wall of the outer housing, and a front positioning portion is formed on the inner peripheral wall of the outer housing, the inner housing, or the shielding shell. The front positioning portion and the rear positioning portion axially abut against the front end and rear end of the sealing ring, respectively, to axially position the sealing ring. This utility model eliminates the need for a separate sealing ring positioning component, thereby reducing assembly difficulty, improving manufacturing efficiency, and reducing manufacturing costs.

Description

Technical Field

[0001] This utility model relates to a connector housing assembly and a connector including the connector housing assembly. Background Technology

[0002] In existing technology, connectors typically include a housing, an inner shell, a shielding shell, and terminals. The terminals are inserted into the inner shell, the shielding shell is fitted onto the inner shell, and the inner shell and shielding shell are then inserted into the housing. Sometimes, to achieve a seal between the connector and its mating counterpart, a sealing ring is required within the housing. This sealing ring is adapted to be radially positioned between the housing and the mating shell of the mating connector to achieve a seal between them. To prevent axial movement of the sealing ring, in existing technology, a sealing ring locating cap is also installed at the port of the housing for axial positioning of the sealing ring. However, installing a separate sealing ring locating cap introduces installation errors, requires very high insertion forces during installation, leading to installation difficulties, and manufacturing a separate sealing ring locating cap also increases costs and reduces manufacturing efficiency. Utility Model Content

[0003] The purpose of this utility model is to solve at least one aspect of the aforementioned problems and defects existing in the prior art.

[0004] According to one aspect of the present invention, a connector housing assembly is provided. The connector housing assembly includes: an outer housing, comprising an outer peripheral wall forming an inner cavity and an inner peripheral wall formed in the inner cavity and radially spaced from the outer peripheral wall; a sealing ring, fitted onto the inner peripheral wall and adapted to be radially pressed between the inner peripheral wall and a mating housing inserted between the outer peripheral wall and the inner peripheral wall to achieve a seal between the two; an inner housing, inserted into the inner cavity of the outer housing and forming a terminal slot for inserting terminals; and a shielding shell, fitted onto the outside of the inner housing and installed in the inner cavity of the outer housing. A rear positioning portion is formed on the outer side of the inner peripheral wall of the outer housing, and a front positioning portion is formed on the inner peripheral wall of the outer housing, the inner housing, or the shielding shell, the front positioning portion and the rear positioning portion axially abutting against the front end and rear end of the sealing ring, respectively, to axially position the sealing ring.

[0005] According to an exemplary embodiment of the present invention, a first elastic buckle that engages with the inner shell and a second elastic buckle that engages with the outer shell are formed on the shielding shell to lock the shielding shell to the inner shell and the outer shell.

[0006] According to another exemplary embodiment of the present invention, a first groove for engaging with the first elastic buckle is formed on the outer peripheral surface of the inner housing, and a second groove for engaging with the second elastic buckle is formed on the inner peripheral surface of the inner peripheral wall of the outer housing.

[0007] According to another exemplary embodiment of the present invention, the front positioning portion includes a radial flange formed on the front end of the peripheral wall of the inner housing, the radial flange axially abutting against the front end of the sealing ring.

[0008] According to another exemplary embodiment of the present invention, a plurality of contact springs are formed on the shielding shell, and the plurality of contact springs are spaced apart in the circumferential direction of the shielding shell; a plurality of slots are formed on the peripheral wall of the inner shell, and the plurality of contact springs protrude into the inner shell through the plurality of slots for electrical contact with a mating shielding shell inserted into the inner shell.

[0009] According to another exemplary embodiment of the present invention, the front positioning part includes a plurality of L-shaped cantilever arms formed on the inner housing. The plurality of L-shaped cantilever arms are spaced apart in the circumferential direction of the inner housing. Each L-shaped cantilever arm includes an axially extending arm and a radially extending arm connected to the front end of the axially extending arm. The radially extending arm axially abuts against the front end of the sealing ring.

[0010] According to another exemplary embodiment of the present invention, the front positioning part further includes a plurality of baffles formed on the front end of the shielding shell and bent vertically outward, the plurality of baffles being spaced apart in the circumferential direction of the shielding shell and axially abutting against the front end of the sealing ring.

[0011] According to another exemplary embodiment of the present invention, a plurality of contact springs are formed on the front end of the shielding shell. The plurality of contact springs are spaced apart in the circumferential direction of the shielding shell and bent inward for electrical contact with the inserted mating shielding shell.

[0012] According to another exemplary embodiment of the present invention, the front positioning portion includes a plurality of radial protrusions formed on the outer side of the inner peripheral wall of the housing, the plurality of radial protrusions being spaced apart in the circumferential direction of the inner peripheral wall for axially abutting against the front end of the sealing ring.

[0013] According to another exemplary embodiment of the present invention, a plurality of contact springs are formed on the front end of the shielding shell. The plurality of contact springs are spaced apart in the circumferential direction of the shielding shell and bent inward for electrical contact with the inserted mating shielding shell.

[0014] According to another exemplary embodiment of the present invention, the shielding shell is an integrally stamped part.

[0015] According to another exemplary embodiment of the present invention, the peripheral wall of the shielding shell has at least one pair of splicing edges extending along the axial direction of the shielding shell, and an elastic buckle is formed on each pair of splicing edges; a slot is formed on the inner shell to engage with the elastic buckle on the splicing edges, so as to ensure that each pair of splicing edges will not separate in the direction of separation from each other.

[0016] According to another exemplary embodiment of the present invention, a cable through hole is formed on the rear end wall of the shielding shell to allow the cable to pass through, and the shielding shell has a plurality of spring pieces surrounding the cable through hole, the plurality of spring pieces being used for electrical contact with the shielding layer of the cable.

[0017] According to another exemplary embodiment of the present invention, the outer shell and the inner shell are both integral injection molded parts.

[0018] According to another aspect of the present invention, a connector is provided. The connector includes: the aforementioned connector housing assembly; and terminals that are inserted into terminal slots in the inner housing.

[0019] According to an exemplary embodiment of the present invention, the connector further includes: a cable extending into the terminal slot with its conductor electrically connected to the terminal, and the shielding layer of the cable being electrically connected to the shielding shell.

[0020] In the foregoing exemplary embodiments of the present invention, the sealing ring is axially positioned using a positioning portion formed on the outer shell, inner shell, or shielding shell. Therefore, the present invention eliminates the need for a separate sealing ring positioning component, thereby reducing assembly difficulty, improving manufacturing efficiency, and lowering manufacturing costs.

[0021] Other objects and advantages of the present invention will become apparent from the following description of the invention with reference to the accompanying drawings, and will help to provide a comprehensive understanding of the invention. Attached Figure Description

[0022] Figure 1 This diagram shows a perspective view of a connector housing assembly according to an exemplary first embodiment of the present invention;

[0023] Figure 2 This shows an axial sectional view of a connector housing assembly according to an exemplary first embodiment of the present invention;

[0024] Figure 3 This diagram shows an exploded view of a connector housing assembly according to an exemplary first embodiment of the present invention.

[0025] Figure 4This diagram shows an assembly schematic of the inner shell and the shielding shell according to an exemplary first embodiment of the present invention;

[0026] Figure 5 This shows an axial sectional view of the inner housing and the shielding shell according to an exemplary first embodiment of the present invention;

[0027] Figure 6 This diagram shows an exploded view of the inner shell and the shielding shell according to an exemplary first embodiment of the present invention.

[0028] Figure 7 Showing an anatomical view of the inner shell and the shielding shell according to an exemplary first embodiment of the present invention;

[0029] Figure 8 This diagram shows a perspective view of a connector housing assembly according to an exemplary second embodiment of the present invention;

[0030] Figure 9 This shows an axial sectional view of a connector housing assembly according to an exemplary second embodiment of the present invention;

[0031] Figure 10 This diagram shows an exploded view of a connector housing assembly according to an exemplary second embodiment of the present invention;

[0032] Figure 11 This diagram shows an assembly schematic of the inner shell and the shielding shell according to an exemplary second embodiment of the present invention;

[0033] Figure 12 This shows an axial sectional view of the inner housing and the shielding shell according to an exemplary second embodiment of the present invention;

[0034] Figure 13 This diagram shows an exploded view of the inner shell and the shielding shell according to an exemplary second embodiment of the present invention.

[0035] Figure 14 Showing an anatomical view of the inner shell and the shielding shell according to an exemplary second embodiment of the present invention;

[0036] Figure 15 A perspective view of a connector housing assembly according to an exemplary third embodiment of the present invention is shown;

[0037] Figure 16 Showing an axial sectional view of a connector housing assembly according to an exemplary third embodiment of the present invention;

[0038] Figure 17This shows an axial sectional view of the housing according to an exemplary third embodiment of the present invention;

[0039] Figure 18 This diagram shows an assembly schematic of the inner shell and the shielding shell according to an exemplary third embodiment of the present invention.

[0040] Figure 19 This shows an axial sectional view of the inner housing and the shielding shell according to an exemplary third embodiment of the present invention. Detailed Implementation

[0041] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings. In this specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of this utility model with reference to the accompanying drawings is intended to explain the overall inventive concept of this utility model and should not be construed as a limitation thereof.

[0042] Furthermore, in the following detailed description, numerous specific details are set forth for ease of explanation to provide a thorough understanding of the embodiments disclosed herein. However, it will be apparent that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and apparatuses are illustrated to simplify the figures.

[0043] According to a general technical concept of this utility model, a connector housing assembly is provided. The connector housing assembly includes: an outer housing, comprising an outer peripheral wall forming an inner cavity and an inner peripheral wall formed in the inner cavity and radially spaced from the outer peripheral wall; a sealing ring, fitted onto the inner peripheral wall and adapted to be radially pressed between the inner peripheral wall and a mating housing inserted between the outer peripheral wall and the inner peripheral wall to achieve a seal between the two; an inner housing, inserted into the inner cavity of the outer housing and forming a terminal slot for inserting terminals; and a shielding shell, fitted onto the outside of the inner housing and installed in the inner cavity of the outer housing. A rear positioning portion is formed on the outer side of the inner peripheral wall of the outer housing, and a front positioning portion is formed on the inner peripheral wall of the outer housing, the inner housing, or the shielding shell. The front positioning portion and the rear positioning portion axially abut against the front end and rear end of the sealing ring, respectively, to axially position the sealing ring.

[0044] According to another general technical concept of the present invention, a connector is provided. The connector includes: the aforementioned connector housing assembly; and terminals that are inserted into terminal slots in the inner housing.

[0045] First Embodiment

[0046] Figures 1 to 7 This illustrates the first embodiment of the present invention. Wherein, Figure 1 This diagram shows a perspective view of a connector housing assembly according to an exemplary first embodiment of the present invention; Figure 2 This shows an axial sectional view of a connector housing assembly according to an exemplary first embodiment of the present invention; Figure 3 This diagram shows an exploded view of a connector housing assembly according to an exemplary first embodiment of the present invention. Figure 4 This diagram shows an assembly schematic of the inner housing 2 and the shielding shell 3 according to an exemplary first embodiment of the present invention; Figure 5 This shows an axial sectional view of the inner housing 2 and the shielding shell 3 according to an exemplary first embodiment of the present invention; Figure 6 This diagram shows an exploded view of the inner shell 2 and the shielding shell 3 according to an exemplary first embodiment of the present invention. Figure 7 This shows an anatomical view of the inner housing 2 and the shielding shell 3 according to an exemplary first embodiment of the present invention.

[0047] like Figures 1 to 7 As shown, in an exemplary embodiment of this utility model, a connector housing assembly is disclosed. The connector housing assembly includes: an outer shell 1, an inner shell 2, a shielding shell 3, and a sealing ring 4. The outer shell 1 includes an outer peripheral wall 11 surrounding an inner cavity 100 and an inner peripheral wall 12 formed in the inner cavity 100 and radially spaced from the outer peripheral wall 11. The sealing ring 4 is fitted onto the inner peripheral wall 12 and adapted to be radially pressed between the inner peripheral wall 12 and a mating shell (not shown) of a mating connector (not shown) inserted between the outer peripheral wall 11 and the inner peripheral wall 12 to achieve a seal between the two. The inner shell 2 is inserted into the inner cavity 100 of the outer shell 1 and has terminal slots 29 for inserting terminals (not shown). The shielding shell 3 is fitted onto the outside of the inner shell 2 and installed into the inner cavity 100 of the outer shell 1. A rear positioning portion 10 is formed on the outer side of the inner peripheral wall 12 of the outer shell 1, and a front positioning portion 20 is formed on the inner peripheral wall 12 of the outer shell 1, the inner shell 2, or the shielding shell 3. The front positioning portion 20 and the rear positioning portion 10 axially abut against the front end and rear end of the sealing ring 4, respectively, to axially position the sealing ring 4.

[0048] like Figures 1 to 7 As shown in the illustrated embodiment, a first elastic buckle 31 that engages with the inner shell 2 and a second elastic buckle 32 that engages with the outer shell 1 are formed on the shielding shell 3 to lock the shielding shell 3 to the inner shell 2 and the outer shell 1.

[0049] like Figures 1 to 7 As shown in the illustrated embodiment, a first groove 201 that engages with the first elastic buckle 31 is formed on the outer peripheral surface of the inner housing 2, and a second groove 102 that engages with the second elastic buckle 32 is formed on the inner peripheral surface of the inner peripheral wall 12 of the outer housing 1.

[0050] like Figures 1 to 7 As shown in the illustrated embodiment, the front positioning portion 20 includes a radial flange 21 formed on the front end of the peripheral wall of the inner housing 2, which axially abuts against the front end of the sealing ring 4.

[0051] like Figures 1 to 7 As shown in the illustrated embodiment, a plurality of contact springs 33 are formed on the shielding shell 3, and the plurality of contact springs 33 are spaced apart in the circumferential direction of the shielding shell 3. A plurality of slots 203 are formed on the peripheral wall of the inner shell 2, and the plurality of contact springs 33 protrude into the inner shell 2 through the plurality of slots 203 respectively, for electrical contact with the mating shielding shell (not shown) of the mating connector inserted into the inner shell 2.

[0052] like Figures 1 to 7 As shown in the illustrated embodiment, the shielding shell 3 is a one-piece stamped part. This improves manufacturing efficiency and reduces manufacturing costs.

[0053] like Figures 1 to 7 As shown in the illustrated embodiment, the peripheral wall of the shielding shell 3 has at least one pair of splicing edges 3a extending along the axial direction of the shielding shell 3, and an elastic buckle 34 is formed on each pair of splicing edges 3a. A groove 204 is formed on the inner shell 2 to engage with the elastic buckle 34 on the splicing edges 3a, so as to ensure that each pair of splicing edges 3a will not separate in the direction of separation from each other.

[0054] like Figures 1 to 7 As shown, in the illustrated embodiment, a cable through-hole 301 is formed on the rear end wall of the shielding shell 3 to allow a cable (not shown) to pass through. The shielding shell 3 has a plurality of spring pieces 36 surrounding the cable through-hole 301, which are used to make electrical contact with the shielding layer (not shown) of the cable.

[0055] like Figures 1 to 7 As shown in the illustrated embodiment, the outer shell 1 and the inner shell 2 are both integrally injection molded parts. This improves manufacturing efficiency and reduces manufacturing costs.

[0056] like Figures 1 to 7 As shown, in another exemplary embodiment of this utility model, a connector is also disclosed. The connector includes the aforementioned connector housing assembly and terminals (not shown). The terminals are inserted into terminal slots 29 of the inner housing 2.

[0057] like Figures 1 to 7 As shown in the illustrated embodiment, the connector also includes a cable (not shown), one end of which extends into the terminal slot 29, and the conductor of the cable is electrically connected to the terminal. The shielding layer of the cable is in electrical contact with the spring contact 36 of the shielding shell 3 to achieve an electrical connection between the shielding shell 3 and the shielding layer of the cable.

[0058] Second Embodiment

[0059] Figures 8 to 14 This illustrates a second embodiment of the present invention. In this embodiment, Figure 8 This diagram shows a perspective view of a connector housing assembly according to an exemplary second embodiment of the present invention; Figure 9 This shows an axial sectional view of a connector housing assembly according to an exemplary second embodiment of the present invention; Figure 10 This diagram shows an exploded view of a connector housing assembly according to an exemplary second embodiment of the present invention; Figure 11 This diagram shows an assembly schematic of the inner housing 2 and the shielding shell 3 according to an exemplary second embodiment of the present invention; Figure 12 This shows an axial sectional view of the inner housing 2 and the shielding shell 3 according to an exemplary second embodiment of the present invention; Figure 13 This diagram shows an exploded view of the inner housing 2 and the shielding shell 3 according to an exemplary second embodiment of the present invention. Figure 14 This shows an anatomical view of the inner housing 2 and the shielding shell 3 according to an exemplary second embodiment of the present invention.

[0060] like Figures 8 to 14 As shown, in an exemplary embodiment of this utility model, a connector housing assembly is disclosed. The connector housing assembly includes: an outer shell 1, an inner shell 2, a shielding shell 3, and a sealing ring 4. The outer shell 1 includes an outer peripheral wall 11 surrounding an inner cavity 100 and an inner peripheral wall 12 formed in the inner cavity 100 and radially spaced from the outer peripheral wall 11. The sealing ring 4 is fitted onto the inner peripheral wall 12 and adapted to be radially pressed between the inner peripheral wall 12 and a mating shell (not shown) of a mating connector (not shown) inserted between the outer peripheral wall 11 and the inner peripheral wall 12 to achieve a seal between the two. The inner shell 2 is inserted into the inner cavity 100 of the outer shell 1 and has terminal slots 29 for inserting terminals (not shown). The shielding shell 3 is fitted onto the outside of the inner shell 2 and installed into the inner cavity 100 of the outer shell 1. A rear positioning portion 10 is formed on the outer side of the inner peripheral wall 12 of the outer shell 1, and a front positioning portion 20 is formed on the inner peripheral wall 12 of the outer shell 1, the inner shell 2, or the shielding shell 3. The front positioning portion 20 and the rear positioning portion 10 axially abut against the front end and rear end of the sealing ring 4, respectively, to axially position the sealing ring 4.

[0061] like Figures 8 to 14 As shown in the illustrated embodiment, a first elastic buckle 31 that engages with the inner shell 2 and a second elastic buckle 32 that engages with the outer shell 1 are formed on the shielding shell 3 to lock the shielding shell 3 to the inner shell 2 and the outer shell 1.

[0062] like Figures 8 to 14As shown in the illustrated embodiment, a first groove 201 that engages with the first elastic buckle 31 is formed on the outer peripheral surface of the inner housing 2, and a second groove 102 that engages with the second elastic buckle 32 is formed on the inner peripheral surface of the inner peripheral wall 12 of the outer housing 1.

[0063] like Figures 8 to 14 As shown in the illustrated embodiment, the front positioning part 20 includes a plurality of L-shaped cantilever arms 22 formed on the inner housing 2, the plurality of L-shaped cantilever arms 22 being spaced apart in the circumferential direction of the inner housing 2. The L-shaped cantilever arm 22 includes an axially extending arm 22a and a radially extending arm 22b connected to the front end of the axially extending arm 22a, the radially extending arm 22b abutting axially against the front end of the sealing ring 4.

[0064] like Figures 8 to 14 As shown in the illustrated embodiment, the front positioning part 20 further includes a plurality of baffles 35 formed on the front end of the shielding shell 3 and bent outward vertically. The plurality of baffles 35 are spaced apart in the circumferential direction of the shielding shell 3 and axially abut against the front end of the sealing ring 4.

[0065] like Figures 8 to 14 As shown in the illustrated embodiment, a plurality of contact springs 33 are formed on the front end of the shielding shell 3. The plurality of contact springs 33 are spaced apart in the circumferential direction of the shielding shell 3 and bent inward for electrical contact with the mating shielding shell (not shown) of the inserted mating connector.

[0066] like Figures 8 to 14 As shown in the illustrated embodiment, the shielding shell 3 is a one-piece stamped part. This improves manufacturing efficiency and reduces manufacturing costs.

[0067] like Figures 8 to 14 As shown, in the illustrated embodiment, the peripheral wall of the shielding shell 3 has at least a pair of splicing edges 3a extending along the axial direction of the shielding shell 3 (see the first embodiment). Figure 1-7 Each pair of splicing edges 3a has an elastic buckle 34 formed thereon. The inner shell 2 has a groove 204 that engages with the elastic buckle 34 on the splicing edges 3a to ensure that each pair of splicing edges 3a does not separate in the direction of separation from each other.

[0068] like Figures 8 to 14 As shown, in the illustrated embodiment, a cable through-hole 301 is formed on the rear end wall of the shielding shell 3 to allow a cable (not shown) to pass through. The shielding shell 3 has a plurality of spring pieces 36 surrounding the cable through-hole 301, which are used to make electrical contact with the shielding layer (not shown) of the cable.

[0069] like Figures 8 to 14 As shown in the illustrated embodiment, the outer shell 1 and the inner shell 2 are both integrally injection molded parts. This improves manufacturing efficiency and reduces manufacturing costs.

[0070] like Figures 8 to 14 As shown, in another exemplary embodiment of this utility model, a connector is also disclosed. The connector includes the aforementioned connector housing assembly and terminals (not shown). The terminals are inserted into terminal slots 29 of the inner housing 2.

[0071] like Figures 8 to 14 As shown in the illustrated embodiment, the connector also includes a cable (not shown), one end of which extends into the terminal slot 29, and the conductor of the cable is electrically connected to the terminal. The shielding layer of the cable is in electrical contact with the spring contact 36 of the shielding shell 3 to achieve an electrical connection between the shielding shell 3 and the shielding layer of the cable.

[0072] Third Embodiment

[0073] Figures 15 to 19 This illustrates a third embodiment of the present invention. In which, Figure 15 A perspective view of a connector housing assembly according to an exemplary third embodiment of the present invention is shown; Figure 16 Showing an axial sectional view of a connector housing assembly according to an exemplary third embodiment of the present invention; Figure 17 This shows an axial sectional view of the housing according to an exemplary third embodiment of the present invention; Figure 18 This diagram shows an assembly schematic of the inner housing 2 and the shielding shell 3 according to an exemplary third embodiment of the present invention.

[0074] Figure 19 This shows an axial sectional view of the inner housing 2 and the shielding shell 3 according to an exemplary third embodiment of the present invention.

[0075] Figures 15 to 19 This illustrates a second embodiment of the present invention. In this embodiment, Figure 8 This diagram shows a perspective view of a connector housing assembly according to an exemplary second embodiment of the present invention; Figure 9 This shows an axial sectional view of a connector housing assembly according to an exemplary second embodiment of the present invention; Figure 10 This diagram shows an exploded view of a connector housing assembly according to an exemplary second embodiment of the present invention; Figure 11 This diagram shows an assembly schematic of the inner housing 2 and the shielding shell 3 according to an exemplary second embodiment of the present invention; Figure 12 This shows an axial sectional view of the inner housing 2 and the shielding shell 3 according to an exemplary second embodiment of the present invention; Figure 13 This diagram shows an exploded view of the inner housing 2 and the shielding shell 3 according to an exemplary second embodiment of the present invention. Figure 14This shows an anatomical view of the inner housing 2 and the shielding shell 3 according to an exemplary second embodiment of the present invention.

[0076] like Figures 15 to 19 As shown, in an exemplary embodiment of this utility model, a connector housing assembly is disclosed. The connector housing assembly includes: an outer shell 1, an inner shell 2, a shielding shell 3, and a sealing ring 4. The outer shell 1 includes an outer peripheral wall 11 surrounding an inner cavity 100 and an inner peripheral wall 12 formed in the inner cavity 100 and radially spaced from the outer peripheral wall 11. The sealing ring 4 is fitted onto the inner peripheral wall 12 and adapted to be radially pressed between the inner peripheral wall 12 and a mating shell (not shown) of a mating connector (not shown) inserted between the outer peripheral wall 11 and the inner peripheral wall 12 to achieve a seal between the two. The inner shell 2 is inserted into the inner cavity 100 of the outer shell 1 and has terminal slots 29 for inserting terminals (not shown). The shielding shell 3 is fitted onto the outside of the inner shell 2 and installed into the inner cavity 100 of the outer shell 1. A rear positioning portion 10 is formed on the outer side of the inner peripheral wall 12 of the outer shell 1, and a front positioning portion 20 is formed on the inner peripheral wall 12 of the outer shell 1, the inner shell 2, or the shielding shell 3. The front positioning portion 20 and the rear positioning portion 10 axially abut against the front end and rear end of the sealing ring 4, respectively, to axially position the sealing ring 4.

[0077] like Figures 15 to 19 As shown in the illustrated embodiment, a first elastic buckle 31 that engages with the inner shell 2 and a second elastic buckle 32 that engages with the outer shell 1 are formed on the shielding shell 3 to lock the shielding shell 3 to the inner shell 2 and the outer shell 1.

[0078] like Figures 15 to 19 As shown in the illustrated embodiment, a first groove 201 that engages with the first elastic buckle 31 is formed on the outer peripheral surface of the inner housing 2, and a second groove 102 that engages with the second elastic buckle 32 is formed on the inner peripheral surface of the inner peripheral wall 12 of the outer housing 1.

[0079] like Figures 15 to 19 As shown in the illustrated embodiment, the front positioning part 20 includes a plurality of radial protrusions 14 formed on the outer side of the inner peripheral wall 12 of the housing 1. The plurality of radial protrusions 14 are spaced apart in the circumferential direction of the inner peripheral wall 12 and are used to axially abut against the front end of the sealing ring 4.

[0080] like Figures 15 to 19 As shown in the illustrated embodiment, a plurality of contact springs 33 are formed on the front end of the shielding shell 3. The plurality of contact springs 33 are spaced apart in the circumferential direction of the shielding shell 3 and bent inward for electrical contact with the inserted mating shielding shell.

[0081] like Figures 15 to 19As shown in the illustrated embodiment, the shielding shell 3 is a one-piece stamped part. This improves manufacturing efficiency and reduces manufacturing costs.

[0082] like Figures 15 to 19 As shown, in the illustrated embodiment, the peripheral wall of the shielding shell 3 has at least a pair of splicing edges 3a extending along the axial direction of the shielding shell 3 (see the first embodiment). Figure 1-7 Each pair of splicing edges 3a has an elastic buckle 34 formed thereon. The inner shell 2 has a groove 204 that engages with the elastic buckle 34 on the splicing edges 3a to ensure that each pair of splicing edges 3a does not separate in the direction of separation from each other.

[0083] like Figures 15 to 19 As shown, in the illustrated embodiment, a cable through-hole 301 is formed on the rear end wall of the shielding shell 3 to allow a cable (not shown) to pass through. The shielding shell 3 has a plurality of spring pieces 36 surrounding the cable through-hole 301, which are used to make electrical contact with the shielding layer (not shown) of the cable.

[0084] like Figures 15 to 19 As shown in the illustrated embodiment, the outer shell 1 and the inner shell 2 are both integrally injection molded parts. This improves manufacturing efficiency and reduces manufacturing costs.

[0085] like Figures 15 to 19 As shown, in another exemplary embodiment of this utility model, a connector is also disclosed. The connector includes the aforementioned connector housing assembly and terminals (not shown). The terminals are inserted into terminal slots 29 of the inner housing 2.

[0086] like Figures 15 to 19 As shown in the illustrated embodiment, the connector also includes a cable (not shown), one end of which extends into the terminal slot 29, and the conductor of the cable is electrically connected to the terminal. The shielding layer of the cable is in electrical contact with the spring contact 36 of the shielding shell 3 to achieve an electrical connection between the shielding shell 3 and the shielding layer of the cable.

[0087] Those skilled in the art will understand that the embodiments described above are exemplary and can be improved upon. The structures described in the various embodiments can be freely combined without causing structural or principle conflicts, and these changes should fall within the protection scope of this utility model.

[0088] Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the drawings are intended to illustrate preferred embodiments of the present invention and should not be construed as a limitation thereof.

[0089] While some embodiments of the general concept of this utility model have been shown and described, those skilled in the art will understand that changes may be made to these embodiments without departing from the principles and spirit of the general concept of this utility model, the scope of which is defined by the claims and their equivalents.

[0090] It should be noted that the word "comprising" does not exclude other elements or steps, and the words "a" or "an" do not exclude multiple elements. Furthermore, any reference numerals in the claims should not be construed as limiting the scope of this invention.

Claims

1. A connector housing assembly, characterized by, include: The outer shell (1) includes an outer peripheral wall (11) that surrounds an inner cavity (100) and an inner peripheral wall (12) that is formed in the inner cavity (100) and radially spaced from the outer peripheral wall (11); A sealing ring (4) is fitted onto the inner peripheral wall (12) and adapted to be radially pressed between the inner peripheral wall (12) and the mating housing inserted between the outer peripheral wall (11) and the inner peripheral wall (12) to achieve a seal between the two. The inner housing (2) is inserted into the inner cavity (100) of the outer housing (1) and has a terminal slot (29) for inserting terminals; and The shielding shell (3) is fitted onto the outside of the inner shell (2) and installed into the inner cavity (100) of the outer shell (1). A rear positioning portion (10) is formed on the outer side of the inner peripheral wall (12) of the outer shell (1), and a front positioning portion (20) is formed on the inner peripheral wall (12) of the outer shell (1), the inner shell (2) or the shielding shell (3). The front positioning portion (20) and the rear positioning portion (10) abut against the front end and the rear end of the sealing ring (4) respectively in an axial direction to position the sealing ring (4).

2. The connector housing assembly according to claim 1, characterized in that: A first elastic buckle (31) that engages with the inner shell (2) and a second elastic buckle (32) that engages with the outer shell (1) are formed on the shielding shell (3) to lock the shielding shell (3) to the inner shell (2) and the outer shell (1).

3. The connector housing assembly according to claim 2, characterized in that: A first groove (201) is formed on the outer peripheral surface of the inner housing (2) to engage with the first elastic buckle (31), and a second groove (102) is formed on the inner peripheral surface of the inner peripheral wall (12) of the outer housing (1) to engage with the second elastic buckle (32).

4. The connector housing assembly according to claim 1, characterized in that: The front positioning part (20) includes a radial flange (21) formed on the front end of the peripheral wall of the inner housing (2), the radial flange (21) abutting axially against the front end of the sealing ring (4).

5. The connector housing assembly according to claim 4, characterized in that: A plurality of contact springs (33) are formed on the shielding shell (3), and the plurality of contact springs (33) are distributed at intervals in the circumferential direction of the shielding shell (3); Multiple slots (203) are formed on the peripheral wall of the inner housing (2), and multiple contact springs (33) protrude into the inner housing (2) through the multiple slots (203) respectively, for making electrical contact with the mating shield shell inserted into the inner housing (2).

6. The connector housing assembly according to claim 1, characterized in that: The front positioning part (20) includes a plurality of L-shaped cantilever arms (22) formed on the inner housing (2), the plurality of L-shaped cantilever arms (22) being spaced apart in the circumferential direction of the inner housing (2). The L-shaped cantilever (22) includes an axial extension arm (22a) and a radial extension arm (22b) connected to the front end of the axial extension arm (22a), the radial extension arm (22b) abutting axially against the front end of the sealing ring (4).

7. The connector housing assembly according to claim 6, characterized in that: The front positioning part (20) also includes a plurality of baffles (35) formed on the front end of the shielding shell (3) and bent outward vertically. The plurality of baffles (35) are spaced apart in the circumferential direction of the shielding shell (3) and axially abut against the front end of the sealing ring (4).

8. The connector housing assembly according to claim 6 or 7, characterized in that: Multiple contact springs (33) are formed on the front end of the shielding shell (3). The multiple contact springs (33) are spaced apart in the circumferential direction of the shielding shell (3) and bent inward for electrical contact with the inserted mating shielding shell.

9. The connector housing assembly according to claim 1, characterized in that: The front positioning part (20) includes a plurality of radial protrusions (14) formed on the outer side of the inner peripheral wall (12) of the outer casing (1). The plurality of radial protrusions (14) are spaced apart in the circumferential direction of the inner peripheral wall (12) and are used to axially abut against the front end of the sealing ring (4).

10. The connector housing assembly according to claim 9, characterized in that: Multiple contact springs (33) are formed on the front end of the shielding shell (3). The multiple contact springs (33) are spaced apart in the circumferential direction of the shielding shell (3) and bent inward for electrical contact with the inserted mating shielding shell.

11. The connector housing assembly of claim 1, wherein: The shielding shell (3) is an integral stamped part.

12. The connector housing assembly according to claim 11, characterized in that: The peripheral wall of the shielding shell (3) has at least one pair of splicing edges (3a) extending along the axial direction of the shielding shell (3), and an elastic buckle (34) is formed on each pair of splicing edges (3a); A slot (204) is formed on the inner shell (2) to engage with the elastic buckle (34) on the splicing edge (3a) to ensure that each pair of splicing edges (3a) will not separate in the direction of separation from each other.

13. The connector housing assembly according to claim 12, characterized in that: A cable through hole (301) is formed on the rear wall of the shielding shell (3) to allow the cable to pass through. The shielding shell (3) has a plurality of spring pieces (36) surrounding the cable through hole (301) for electrical contact with the shielding layer of the cable.

14. The connector housing assembly according to claim 1, characterized in that: The outer shell (1) and the inner shell (2) are both integral injection molded parts.

15. A connector, characterized in that, include: The connector housing assembly according to any one of claims 1-14; and The terminals are inserted into the terminal slots (29) of the inner housing (2).

16. The connector according to claim 15, characterized in that, Also includes: A cable extends into the terminal slot (29) and its conductor is electrically connected to the terminal, and the shielding layer of the cable is electrically connected to the shielding shell (3).

Images