CN217788853U - Connector housing assembly and connector - Google Patents

Abstract

The utility model discloses a connector housing assembly and connector. The connector housing assembly includes: an outer housing including a peripheral wall; the inner shell is inserted into the inner cavity of the outer shell and is suitable for moving between a pre-locking position and a final locking position along the axial direction of the outer shell. A terminal insertion hole allowing the terminal to be inserted and a resilient latch for locking the terminal are formed on the inner housing, the resilient latch being adapted to move between a locking position engaging with the terminal and an unlocking position disengaging from the terminal in a radial direction of the outer housing. When the inner shell is at the pre-locking position, the elastic lock catch is not restrained by the peripheral wall of the outer shell and can elastically deform along the radial direction to allow the terminal to be inserted into the inner shell; when the inner housing is in the final locking position, the resilient latch is constrained by the peripheral wall of the outer housing against being resiliently deformed radially outward, so that the resilient latch is held in the locking position to lock the inserted terminal. The utility model discloses in, the risk that aversion and droing can not appear in the interior casing, improved the reliability of product.

Description

Connector housing assembly and connector

Technical Field

The utility model relates to a connector housing assembly and including this connector housing assembly's connector.

Background

In the prior art, a radio frequency coaxial connector generally includes a housing, a plurality of terminals, and a terminal lock. A plurality of terminals are mounted in the housing. A terminal locking member is inserted into the slot in the housing and engages the plurality of terminals to lock the plurality of terminals in the housing.

In the prior art, the terminal lock typically required assembly at the customer site. Therefore, in the shipping state, the terminal locking member is easily detached or displaced by external force, which affects the subsequent assembly of the customer. Moreover, after the client is assembled, the terminal locking piece still has the risk of falling off in the long-term use process, and the reliability of the product is influenced.

In addition, in the prior art, the terminal locking member needs to occupy a large space, which results in an over-sized and high-cost rf coaxial connector. Moreover, the contact area between the terminal locking piece and the terminal is small, and the holding force of the terminal locking piece and the terminal is insufficient.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to solve at least one of the above problems and drawbacks existing in the prior art.

According to an aspect of the present invention, there is provided a connector housing assembly, including: the outer shell comprises a peripheral wall which encloses an inner cavity; the inner shell is inserted into the inner cavity of the outer shell and is suitable for moving between a pre-locking position and a final locking position along the axial direction of the outer shell. A terminal insertion hole allowing insertion of a terminal and a resilient latch for locking the terminal are formed on the inner housing, the resilient latch being adapted to move between a locking position engaging with the terminal and an unlocking position separating from the terminal in a radial direction of the outer housing. When the inner shell is at the pre-locking position, the elastic lock catch is free from the constraint of the peripheral wall of the outer shell and can be elastically deformed along the radial direction to allow the terminal to be inserted into the inner shell; when the inner housing is at the final locking position, the elastic lock catch is restrained by the circumferential wall of the outer housing and cannot be elastically deformed outward in the radial direction, so that the elastic lock catch is held at the locking position to lock the inserted terminal.

According to an exemplary embodiment of the present invention, an avoidance opening is formed on a peripheral wall of the outer shell; when the inner shell is in the pre-locking position, the elastic lock catch is aligned with the avoiding opening so as not to be restrained by the peripheral wall of the outer shell.

According to another exemplary embodiment of the present invention, when the inner housing is in the final locking position, an inner wall surface of a peripheral wall of the outer housing abuts against at least a portion of the elastic catch, so that the elastic catch is held in the locking position.

According to another exemplary embodiment of the present invention, the inner cavity of the outer shell has a front opening and a rear opening opposite in the axial direction, and the inner shell is inserted into the inner cavity of the outer shell from the rear opening of the outer shell; the inner housing is movable from the prelock position rearwardly in the axial direction to the final lock position when the inner housing is in the prelock position and the terminal has been inserted into the inner housing at a predetermined installation position.

According to another exemplary embodiment of the present invention, the elastic catch comprises: the elastic cantilever extends forwards along the axial direction for a preset length; and a first projection protrudingly formed on an inner side of a free end of the elastic cantilever, the first projection being for engaging with a recess on the terminal to lock the terminal.

According to another exemplary embodiment of the present invention, a radial blocking surface is formed inside the inner shell; when the terminal is inserted into the preset mounting position in the inner shell, the radial stop surface axially abuts against the corresponding stop surface of the terminal so as to prevent the terminal from moving forwards along the axial direction.

According to another exemplary embodiment of the present invention, the first protrusion has a first blocking face; when the terminal is inserted into the preset mounting position in the inner shell, the first blocking surface axially abuts against the first matching blocking surface of the terminal so as to prevent the terminal from moving backwards along the axial direction.

According to another exemplary embodiment of the present invention, the resilient latch further comprises: a second protrusion protrudingly formed on an outer side of the free end of the elastic cantilever and having a second blocking surface. The avoiding opening of the outer shell is provided with a second matching blocking surface; when the inner shell is in the final locking position, the second blocking surface abuts against the second mating blocking surface to prevent the inner shell from moving backwards along the axial direction.

According to another exemplary embodiment of the present invention, an elastic buckle is further formed on the inner housing, and a final locking hole is formed on the peripheral wall of the outer housing. When the inner shell is located at the final locking position, the elastic buckle is engaged with the final locking hole, and the hole wall of the final locking hole prevents the inner shell from moving forwards along the axial direction.

According to another exemplary embodiment of the present invention, the elastic buckle comprises: a cantilever portion extending forward in the axial direction; and a boss portion protrudingly formed on an outer side of the cantilever portion. The boss has a final locking face, and the outer housing has a mating final locking face located on one side of the final locking hole; when the inner housing is in the final lock position, the final lock surface axially abuts against the mating final lock surface to prevent the inner housing from moving forward in the axial direction.

According to another exemplary embodiment of the present invention, a pre-locking hole is further formed on the peripheral wall of the outer housing, the pre-locking hole being axially spaced apart from and located in front of the final locking hole; the boss is also provided with a pre-locking surface, and the outer shell is provided with a matching pre-locking surface positioned on one side of the pre-locking hole; when the inner shell is located at the pre-locking position, the pre-locking surface abuts against the matching pre-locking surface, so that the inner shell can move backwards along the axial direction only when receiving an external force which is larger than a preset value and faces backwards in the axial direction, and cannot move backwards along the axial direction when receiving an external force which is not larger than the preset value and faces backwards in the axial direction.

According to the utility model discloses a further exemplary embodiment be formed with boss portion on the shell body, boss portion is located the lockhole in advance with between the final lockhole, to joining in marriage in advance the locking face with to joining in marriage the final locking face does two sides of boss portion.

According to another exemplary embodiment of the present invention, the cantilever portion radially protrudes from an outer surface of the inner shell; the inner peripheral wall of the outer shell is provided with an axially extending matching groove, so that the cantilever part is accommodated in the matching groove and moves along the axial direction.

According to another exemplary embodiment of the present invention, the inner peripheral wall of the outer shell is formed with an inclined guide portion on a rear end portion for guiding the boss portion into the mating groove.

According to another exemplary embodiment of the present invention, a blocking surface is formed at an outer portion of the inner case, and a mating blocking surface is formed at an inner portion of the outer case; when the inner shell is located at the pre-locking position, the stop surface axially abuts against the matching stop surface to prevent the inner shell from moving forwards along the axial direction.

According to another exemplary embodiment of the present invention, the resilient latch further comprises: and a third protrusion protrusively formed on one side of the free end of the elastic cantilever. The avoiding opening of the outer shell is provided with a third blocking surface. When the inner housing is in the pre-lock position and the terminal is not inserted into the predetermined mounting position in the inner housing, the third protrusion is pushed up by the terminal outward in the radial direction, so that the third protrusion is in a position of interfering with the third blocking surface to prevent the inner housing from moving from the pre-lock position toward the final lock position; when the inner housing is in the pre-lock position and the terminal is inserted to a predetermined mounting position in the inner housing, the third projection is in a position out of interference with the third blocking surface to allow the inner housing to be moved from the pre-lock position toward the final lock position.

According to another aspect of the present invention, there is provided a connector, including: the connector comprises a connector shell assembly and terminals, wherein the terminals are inserted into terminal insertion holes of the inner shell. A recess is formed on the terminal, the recess engaging with the first projection of the resilient latch so that the terminal is locked in the terminal insertion hole.

According to an exemplary embodiment of the utility model a radial boss is formed with on the terminal, radial boss has to joining in marriage and blocks the face, to joining in marriage block the face axial and support and lean on the radial face that blocks of interior casing, in order to prevent the terminal is followed the axial is moved forward.

According to another exemplary embodiment of the present invention, the connector further comprises a cable, the cable being connected with the terminal to form a cable assembly to be inserted into the terminal insertion hole together with the terminal.

According to another exemplary embodiment of the present invention, the connector is a radio frequency coaxial connector.

In the aforementioned various exemplary embodiments according to the present invention, before the terminal is inserted at the client, the inner housing for locking the terminal is pre-installed in the outer housing and reliably held at the pre-lock position by the outer housing, and the risk of displacement and falling off does not occur, improving the reliability of the product.

Furthermore, in some exemplary embodiments of the present invention, the terminal is locked in the inner housing through the inner structure of the inner housing, so that it is not necessary to add a terminal locking member, and the volume of the connector is reduced. Furthermore, the utility model discloses in, when interior casing when the final locking position, the bounding of the perisporium of shell body to the elastic lock catch can improve the holding power of elastic lock catch to the terminal.

Other objects and advantages of the present invention will become apparent from the following description of the invention, which is made with reference to the accompanying drawings, and can help to provide a thorough understanding of the present invention.

Drawings

Fig. 1 shows a perspective schematic view of a connector housing assembly according to an exemplary embodiment of the present invention, with an inner housing in a pre-lock position;

fig. 2 shows an exploded schematic view of a connector housing assembly according to an exemplary embodiment of the present invention, with the inner housing in a pre-lock position;

fig. 3 shows a cross-sectional view of a connector housing assembly according to an exemplary embodiment of the present invention in one direction with the inner housing in a pre-lock position;

fig. 4 shows a cross-sectional exploded schematic view of a connector housing assembly in one direction according to an exemplary embodiment of the present invention, with the inner housing in a pre-lock position;

fig. 5 shows a cross-sectional view of a connector housing assembly according to an exemplary embodiment of the invention, in another direction, with the inner housing in a pre-lock position;

fig. 6 shows a cross-sectional exploded schematic view of a connector housing assembly in another orientation with an inner housing in a pre-lock position according to an exemplary embodiment of the present invention;

fig. 7 shows a schematic perspective view of a connector according to an exemplary embodiment of the present invention, wherein the inner housing is in a pre-lock position;

fig. 8 shows a perspective schematic view of a cable assembly of a connector according to an exemplary embodiment of the present invention;

fig. 9 shows a cross-sectional view of a connector according to an exemplary embodiment of the present invention, viewed from the front side, with the inner housing in a pre-lock position;

fig. 10 shows a cross-sectional view of a connector according to an exemplary embodiment of the present invention, viewed from the rear side, with the inner housing in a pre-lock position;

fig. 11 shows a cross-sectional view of a connector according to an exemplary embodiment of the present invention, seen from the upper side, with the inner housing in a pre-lock position;

fig. 12 shows a schematic perspective view of a connector according to an exemplary embodiment of the present invention, wherein the inner housing is in a final lock position;

fig. 13 shows a cross-sectional view of a connector according to an exemplary embodiment of the present invention in one direction with the inner housing in a final lock position;

fig. 14 shows a cross-sectional view of a connector according to an exemplary embodiment of the present invention in another direction with the inner housing in a final lock position;

fig. 15 shows a perspective view of a connector according to an exemplary embodiment of the present invention, with a rear end cap mounted on the rear end of the inner housing;

fig. 16 shows an open state view of the rear end cap of the connector according to an exemplary embodiment of the present invention, viewed from the front side;

fig. 17 shows an open state view of the rear end cap of the connector according to an exemplary embodiment of the present invention, viewed from the rear side;

fig. 18 shows a closed state view of the rear end cap of the connector according to an exemplary embodiment of the present invention, as viewed from the rear side.

Detailed Description

The technical solution of the present invention is further specifically described below by way of embodiments and with reference to the accompanying drawings. In the specification, the same or similar reference numerals denote the same or similar components. The following description of the embodiments of the invention with reference to the drawings is intended to explain the general inventive concept and should not be taken as a limitation of the invention.

Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in diagram form to simplify the drawing.

According to a general technical concept of the present invention, there is provided a connector housing assembly, including: an outer housing 1 including a peripheral wall enclosing an inner cavity 101; and an inner shell 2 inserted into the inner cavity 101 of the outer shell 1 and adapted to move between a pre-locking position and a final locking position along the axial direction of the outer shell 1. A terminal insertion hole 201 allowing insertion of a terminal 30 and a resilient latch 22 for locking the terminal 30 are formed on the inner housing 2, and the resilient latch 22 is adapted to move between a locking position engaging with the terminal 30 and an unlocking position separating from the terminal 30 in a radial direction of the outer housing 1. When the inner housing 2 is in the prelock position, the resilient latch 22 is free from the peripheral wall of the outer housing 1 and can be resiliently deformed in the radial direction to allow the terminal 30 to be inserted into the inner housing 2; when the inner housing 2 is in the final locking position, the resilient latch 22 is restrained by the peripheral wall of the outer housing 1 from being resiliently deformed outward in the radial direction, so that the resilient latch 22 is held in the locking position to lock the inserted terminal 30.

According to another general technical concept of the present invention, there is provided a connector, including: the connector housing assembly and the terminals 30. The terminals 30 are inserted into the terminal insertion holes 201 of the inner housing 2. A recess 321 is formed on the terminal 30, and the recess 321 is engaged with the first protrusion 221 of the resilient latch 22 so that the terminal 30 is locked in the terminal insertion hole 201.

Fig. 1 shows a schematic perspective view of a connector housing assembly according to an exemplary embodiment of the present invention, wherein the inner housing 2 is in a pre-lock position; fig. 2 shows an exploded schematic view of a connector housing assembly according to an exemplary embodiment of the present invention, wherein the inner housing 2 is in a pre-lock position; fig. 3 shows a cross-sectional view of a connector housing assembly according to an exemplary embodiment of the present invention, in one direction, with the inner housing 2 in a pre-lock position; fig. 4 shows a cross-sectional exploded schematic view in one direction of a connector housing assembly according to an exemplary embodiment of the invention, with the inner housing 2 in a pre-lock position; fig. 5 shows a cross-sectional view of the connector housing assembly according to an exemplary embodiment of the present invention in another direction, wherein the inner housing 2 is in a pre-lock position; fig. 6 shows a cross-sectional exploded schematic view of a connector housing assembly according to an exemplary embodiment of the present invention in another direction, wherein the inner housing 2 is in a pre-lock position; fig. 7 shows a schematic perspective view of a connector according to an exemplary embodiment of the present invention, wherein the inner housing 2 is in a pre-lock position; fig. 8 shows a perspective schematic view of a cable assembly 3 of a connector according to an exemplary embodiment of the invention.

As shown in fig. 1 to 8, in the illustrated embodiment, the connector mainly includes connector housing assemblies 1, 2 and a cable assembly 3. The connector housing assembly 1, 2 comprises an outer housing 1 and an inner housing 2. The inner housing 2 is assembled in the outer housing 1. The cable assembly 3 includes a terminal 30 and a cable 31 connected to the terminal 30. The inner housing 2 is inserted into the outer housing 1, and the terminals 30 are inserted into the inner housing 2.

Fig. 9 shows a cross-sectional view of a connector according to an exemplary embodiment of the present invention, viewed from the front side, with the inner housing 2 in a pre-lock position; fig. 10 shows a cross-sectional view of the connector according to an exemplary embodiment of the present invention, viewed from the rear side, with the inner housing 2 in a pre-lock position; fig. 11 shows a cross-sectional view of the connector according to an exemplary embodiment of the present invention, seen from the upper side, wherein the inner housing 2 is in the pre-lock position. Fig. 12 shows a schematic perspective view of a connector according to an exemplary embodiment of the present invention, wherein the inner housing is in a final lock position; fig. 13 shows a cross-sectional view of a connector according to an exemplary embodiment of the present invention in one direction with the inner housing 2 in a final locked position; fig. 14 shows a cross-sectional view of the connector according to an exemplary embodiment of the present invention in another direction, wherein the inner housing 2 is in the final locking position.

As shown in fig. 1-14, in one exemplary embodiment of the invention, a connector housing assembly 1, 2 is disclosed. The connector housing assembly 1, 2 includes: an outer housing 1 and an inner housing 2. The outer housing 1 comprises a circumferential wall enclosing an inner cavity 101. The inner housing 2 is inserted into the inner cavity 101 of the outer housing 1 and is adapted to move between a pre-lock position and a final-lock position in the axial direction of the outer housing 1.

As shown in fig. 1 to 14, in the illustrated embodiment, a terminal insertion hole 201 allowing insertion of the terminal 30 and a resilient latch 22 for locking the terminal 30 are formed on the inner housing 2, and the resilient latch 22 is adapted to move between a locking position engaging with the terminal 30 and an unlocking position separating from the terminal 30 in a radial direction of the outer housing 1.

As shown in fig. 1 to 14, in the illustrated embodiment, when the inner housing 2 is in the prelock position, the resilient latch 22 is not constrained by the peripheral wall of the outer housing 1 and can be resiliently deformed in the radial direction to allow the terminal 30 to be inserted into the inner housing 2.

As shown in fig. 1 to 14, in the illustrated embodiment, when the inner housing 2 is in the final locking position, the resilient catch 22 is constrained by the peripheral wall of the outer housing 1 from being resiliently deformed radially outward, so that the resilient catch 22 is held in the locking position to lock the inserted terminal 30.

As shown in fig. 1 to 14, in the illustrated embodiment, an escape opening 12 is formed in a peripheral wall of the outer case 1. When the inner housing 2 is in the prelock position, the resilient latch 22 is aligned with the escape opening 12 and is adapted to be received in the escape opening 12 and thereby free from the peripheral wall of the outer housing 1.

As shown in fig. 1 to 14, in the illustrated embodiment, when the inner housing 2 is in the final locking position, the inner wall surface of the peripheral wall of the outer housing 1 abuts on at least a part of the resilient catch 22, so that the resilient catch 22 is held in the locking position.

As shown in fig. 1 to 14, in the illustrated embodiment, the inner cavity 101 of the outer housing 1 has a front opening and a rear opening that are opposite in the axial direction, and the inner housing 2 is inserted into the inner cavity 101 of the outer housing 1 from the rear opening of the outer housing 1. When the inner housing 2 is in the pre-lock position and the terminal 30 has been inserted to a predetermined mounting position in the inner housing 2, the inner housing 2 can be moved axially rearward from the pre-lock position to the final lock position.

As shown in fig. 1 to 14, in the illustrated embodiment, the elastic latch 22 includes: a resilient cantilever 220 and a first protrusion 221. The elastic cantilever 220 extends forward in the axial direction by a predetermined length. A first protrusion 221 is protrusively formed on an inner side of the free end of the elastic cantilever 220. The first projection 221 is for engaging with the recess 321 on the terminal 30 to lock the terminal 30.

As shown in fig. 1 to 14, in the illustrated embodiment, when the inner housing 2 is in the final locking position, the inner wall surface of the peripheral wall of the outer housing 1 abuts on the elastic cantilever 220 of the elastic lock 22, so that the elastic lock 22 is held in the locking position.

As shown in fig. 1 to 14, in the illustrated embodiment, a radial blocking surface 24a is formed inside the inner casing 2. When the terminal 30 is inserted into the predetermined mounting position in the inner housing 2, the radial stop surface 24a axially abuts against the mating stop surface 34a of the terminal 30 to prevent the terminal 30 from moving forward in the axial direction.

As shown in fig. 1 to 14, in the illustrated embodiment, the first protrusion 221 has a first blocking surface 221a. When the terminal 30 is inserted to a predetermined mounting position in the inner housing 2, the first stop face 221a axially abuts against the first mating stop face 321a of the terminal 30 to prevent the terminal 30 from moving backward in the axial direction.

As shown in fig. 1 to 14, in the illustrated embodiment, the resilient catch 22 further includes a second protrusion 222, and the second protrusion 222 is convexly formed on an outer side of the free end of the resilient cantilever 220 and has a second stop surface 222a. The escape opening 12 of the outer housing 1 has a second mating stop surface 122a. When the inner housing 2 is in the final locking position, the second blocking face 222a abuts against the second mating blocking face 122a to prevent the inner housing 2 from moving axially rearward.

As shown in fig. 1 to 14, in the illustrated embodiment, an elastic clip 21 is further formed on the inner housing 2, and a terminal locking hole 14 is formed on the peripheral wall of the outer housing 1. When the inner housing 2 is in the final locking position, the elastic catch 21 engages with the final locking hole 14 to prevent the inner housing 2 from moving forward in the axial direction.

As shown in fig. 1 to 14, in the illustrated embodiment, the elastic catch 21 includes: a cantilever portion 210 and a boss portion 211. The cantilever portion 210 extends axially forward. A boss 211 is protrudingly formed on the outer side of the cantilever portion 210. The boss 211 has a final locking face 211b, and the outer housing 1 has a mating final locking face 14b located on one side of the final locking hole 14. When the inner housing 2 is in the final locking position, the final locking face 211b axially abuts against the mating final locking face 14b to prevent the inner housing 2 from moving forward in the axial direction.

As shown in fig. 1 to 14, in the illustrated embodiment, a pre-lock hole 11 is further formed in the peripheral wall of the outer housing 1, and the pre-lock hole 11 is axially spaced apart from the final-lock hole 14 and located forward of the final-lock hole 14. The boss 211 further has a pre-latch face 211a, and the outer case 1 has a mating pre-latch face 11a located on one side of the pre-latch hole 11. When the inner housing 2 is in the pre-lock position, the pre-lock surface 211a abuts against the mating pre-lock surface 11a, so that the inner housing 2 can move axially rearward only when subjected to an axially rearward external force greater than a predetermined value, and cannot move axially rearward when subjected to an axially rearward external force not greater than the predetermined value.

As shown in fig. 1 to 14, in the illustrated embodiment, a boss portion 111 is formed on the outer housing 1, and the boss portion 111 is located between the preliminary locking hole 11 and the final locking hole 14. The mating pre-lock surface 11a and the mating final-lock surface 14b are both side surfaces of the boss portion 111. Note, however, that this boss portion 111 is not essential, and the outer surface of the outer case 1 may be flat. In this case, the mating pre-lock surface 11a may be directly formed by the wall of the pre-lock hole 11, and the mating final-lock surface 14b may be directly formed by the wall of the final-lock hole 14.

As shown in fig. 1 to 14, in the illustrated embodiment, the cantilever portion 210 is disposed to radially protrude from the outer surface of the inner housing 2. The inner peripheral wall of the outer casing 1 is provided with an axially extending mating groove 110, so that the cantilever portion 210 is received in the mating groove 110 and moves in the axial direction. An inclined guide portion 110a is formed on the rear end portion of the inner circumferential wall of the outer case 1 for guiding the boss 211 into the mating groove 110.

As shown in fig. 1 to 14, in the illustrated embodiment, a prevention surface 23a is formed outside the inner case 2, and a mating prevention surface 13a is formed inside the outer case 1. When the inner housing 2 is in the prelock position, the stop surface 23a abuts axially against the counter stop surface 13a to prevent the inner housing 2 from moving axially forward.

As shown in fig. 1 to 14, in the illustrated embodiment, an annular radial projection 13 is formed inside the outer housing 1, and the mating prevention surface 13a is a rear side surface of the annular radial projection 13.

As shown in fig. 1 to 14, in the illustrated embodiment, the resilient latch 22 further includes a third protrusion 223. A third projection 223 is protrusively formed on one side of the free end of the elastic cantilever 220. The escape opening 12 of the outer housing 1 has a third blocking surface 123a.

As shown in fig. 1 to 14, in the illustrated embodiment, when the inner housing 2 is in the pre-lock position and the terminal 30 is not inserted into the inner housing 2 at the predetermined installation position, the third projection 223 is pushed up by the terminal 30 in a radial direction outward, so that the third projection 223 is in a position interfering with the third blocking surface 223a to prevent the inner housing 2 from being moved from the pre-lock position toward the final lock position.

As shown in fig. 1 to 14, in the illustrated embodiment, when the inner housing 2 is in the prelock position and the terminal 30 has been inserted into the inner housing 2 at the predetermined mounting position, the third projection 223 is in a position out of interference with the third blocking surface 223a to allow the inner housing 2 to be moved from the prelock position toward the final lock position.

In another exemplary embodiment of the present invention, as shown in fig. 1-14, a connector is also disclosed. The connector includes: connector housing assemblies 1, 2 and terminals 30. The terminals 30 are inserted into the terminal insertion holes 201 of the inner housing 2. A recess 321 is formed on the terminal 30, and the recess 321 engages with the first projection 221 of the resilient latch 22 so that the terminal 30 is locked in the terminal insertion hole 201.

As shown in fig. 1 to 14, in the illustrated embodiment, the concave portion 321 of the terminal 30 has a first pair of mating stop faces 321a, and the first pair of mating stop faces 321a axially abut against the first stop face 221a of the first protrusion 221 to prevent the terminal 30 from moving backward in the axial direction.

As shown in fig. 1 to 14, in the illustrated embodiment, a radial boss 34 is formed on the terminal 30, and the radial boss 34 has a mating stop surface 34a, and the mating stop surface 34a axially abuts against the radial stop surface 24a of the inner housing 2 to prevent the terminal 30 from moving forward in the axial direction.

As shown in fig. 1 to 14, in the illustrated embodiment, the mating stop face 34a and the first mating stop face 321a of the terminal 30 are respectively the front side face and the rear side face of the radial boss 34 of the terminal 30.

As shown in fig. 1 to 14, in the illustrated embodiment, the connector further includes a cable 31, and the cable 31 is connected with the terminal 30 to form a cable assembly 3 to be inserted into the terminal insertion hole 201 together with the terminal 30.

As shown in fig. 1 to 14, in the illustrated embodiment, the inner housing 2 has four terminal insertion holes 201, the four terminal insertion holes 201 being arranged in two rows and two columns; the connector includes four cable assemblies 3, and the four cable assemblies 3 are respectively inserted into the four terminal insertion holes 201.

Fig. 15 shows a schematic perspective view of a connector according to an exemplary embodiment of the present invention, wherein a rear end cap 4 is mounted on the rear end portion 28 of the inner housing 2; fig. 16 shows an open state view of the rear end cap 4 of the connector according to an exemplary embodiment of the present invention, viewed from the front side; fig. 17 shows an open state view of the rear end cap 4 of the connector according to an exemplary embodiment of the present invention, as viewed from the rear side; fig. 18 shows a closed state diagram of the rear end cap 4 of the connector according to an exemplary embodiment of the present invention, as viewed from the rear side.

As shown in fig. 1-18, in the illustrated embodiment, the connector also includes a rear end cap 4. The rear end cap 4 is mounted on the rear end portion 28 of the inner housing 2 and is formed with a cable through-hole 401 on an end wall 420 thereof to allow the cable 31 to pass therethrough. The cable through-hole 401 has a smaller diameter than that of the terminal through-hole 201 and is equal to or slightly larger than the outer diameter of the cable 31 to prevent the cable 31 from wobbling in the radial direction.

As shown in fig. 1 to 18, in the illustrated embodiment, the rear end cap 4 includes: a first end cap portion 41, two second end cap portions 42 and two bendable connecting portions 43. The first endcap portion 41 includes a first endcap portion 412 and two first peripheral wall portions 411 connected to upper and lower ends of the first endcap portion 412, respectively. The two second end cover portions 42 are respectively located on both sides of the first end cover portion 41 and respectively include a second end wall portion 422 and a second peripheral wall portion 421 connected to the second end wall portion 422. The two bendable joints 43 connect the second peripheral wall portions 421 of the two second end cap portions 42 to the first peripheral wall portion 411 at the upper end of the first end wall portion 412, respectively.

As shown in fig. 1 to 18, in the illustrated embodiment, the two second end cover portions 42 can be opened and closed with respect to the first end cover portion 41 by bending the two bendable portions 43.

As shown in fig. 1 to 18, in the illustrated embodiment, when the two second end cover portions 42 are closed, the first and second peripheral wall portions 411, 421 constitute the peripheral wall 410 of the rear end cover 4, and the first and second end wall portions 412, 422 constitute the end wall 420 of the rear end cover 4.

As shown in fig. 1 to 18, in the illustrated embodiment, a first card slot 4a is formed in the first peripheral wall portion 411, and a second card slot 4b different from the first card slot 4a is formed in the second peripheral wall portion 421. A first projection 28a and a second projection 28b that engage with the first card slot 4a and the second card slot 4b, respectively, are formed on the rear end portion 28 of the rear end cap 4. In this way, the rear end cap 4 can be mounted to the rear end portion 28 of the inner housing 2.

As shown in fig. 1-18, in the illustrated embodiment, the connector is a radio frequency coaxial connector. The rear end of the outer conductor of the terminal 30 is crimped to the shield of the cable. However, the connector of the present invention is not limited to the illustrated embodiment, and may be another type of connector.

It is understood by those skilled in the art that the above-described embodiments are exemplary and can be modified by those skilled in the art, and that the structures described in the various embodiments can be freely combined without conflict in structure or principle, and that such modifications are intended to fall within the scope of the present invention.

Although the present invention has been described in connection with the accompanying drawings, the embodiments disclosed in the drawings are intended to exemplify preferred embodiments of the present invention, and should not be construed as limiting the present invention.

Although a few embodiments of the present general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the appended claims and their equivalents.

It should be noted that the word "comprising" does not exclude other elements or steps, and the words "a" or "an" do not exclude a plurality. Additionally, any element numbers of the claims should not be construed as limiting the scope of the invention.

Claims (20)

1. A connector housing assembly, comprising:

the outer shell comprises a peripheral wall which encloses an inner cavity;

an inner shell inserted into the inner cavity of the outer shell and adapted to move between a pre-locking position and a final locking position along the axial direction of the outer shell,

a terminal insertion hole allowing insertion of a terminal and a resilient latch for locking the terminal are formed on the inner housing, the resilient latch being adapted to move between a locking position engaging with the terminal and an unlocking position disengaging from the terminal in a radial direction of the outer housing,

when the inner shell is in the pre-locking position, the elastic lock catch is not restrained by the peripheral wall of the outer shell and can be elastically deformed along the radial direction to allow the terminal to be inserted into the inner shell;

when the inner housing is at the final locking position, the elastic lock catch is restrained by the circumferential wall of the outer housing and cannot be elastically deformed outward in the radial direction, so that the elastic lock catch is held at the locking position to lock the inserted terminal.

2. The connector housing assembly of claim 1, wherein:

an avoidance opening is formed on the peripheral wall of the outer shell;

when the inner shell is in the pre-locking position, the elastic lock catch is aligned with the avoiding opening so as not to be restrained by the peripheral wall of the outer shell.

3. The connector housing assembly of claim 1, wherein:

when the inner housing is in the final lock position, an inner wall surface of a peripheral wall of the outer housing abuts against at least a part of the elastic lock, so that the elastic lock is held in the lock position.

4. The connector housing assembly of claim 1, wherein:

the inner cavity of the outer shell is provided with a front opening and a rear opening which are opposite in the axial direction, and the inner shell is inserted into the inner cavity of the outer shell from the rear opening of the outer shell;

the inner housing is movable from the prelock position rearwardly in the axial direction to the final lock position when the inner housing is in the prelock position and the terminal has been inserted into the inner housing at a predetermined installation position.

5. The connector housing assembly of claim 4, wherein:

the elastic lock catch comprises:

the elastic cantilever extends forwards along the axial direction for a preset length; and

a first projection protrudingly formed on an inner side of a free end of the elastic cantilever for engaging with a recess on the terminal to lock the terminal.

6. The connector housing assembly of claim 5, wherein:

a radial blocking surface is formed inside the inner shell;

when the terminal is inserted into the preset mounting position in the inner shell, the radial stop surface axially abuts against the corresponding stop surface of the terminal so as to prevent the terminal from moving forwards along the axial direction.

7. The connector housing assembly of claim 5, wherein:

the first protrusion has a first blocking surface;

when the terminal is inserted into the preset mounting position in the inner shell, the first blocking surface axially abuts against the first matching blocking surface of the terminal so as to prevent the terminal from moving backwards along the axial direction.

8. The connector housing assembly of claim 5, wherein:

the elastic lock catch further comprises:

a second protrusion protrudingly formed on an outer side of the free end of the elastic cantilever and having a second blocking surface;

the avoiding opening of the outer shell is provided with a second matching blocking surface;

when the inner shell is in the final locking position, the second blocking face abuts against the second mating blocking face to prevent the inner shell from moving backwards along the axial direction.

9. The connector housing assembly according to any one of claims 1 to 8, wherein:

an elastic buckle is also formed on the inner shell,

a final locking hole is formed on the peripheral wall of the outer shell;

when the inner shell is located at the final locking position, the elastic buckle is engaged with the final locking hole, and the hole wall of the final locking hole prevents the inner shell from moving forwards along the axial direction.

10. The connector housing assembly of claim 9, wherein:

the elasticity buckle includes:

a cantilever portion extending forward in the axial direction; and

a protrusion part protrudingly formed on an outer side of the cantilever part,

the boss has a final locking face, and the outer housing has a mating final locking face located on one side of the final locking hole;

when the inner housing is in the final locking position, the final locking face axially abuts against the mating final locking face to prevent the inner housing from moving forward in the axial direction.

11. The connector housing assembly of claim 10, wherein:

a pre-locking hole is formed in the peripheral wall of the outer shell, and the pre-locking hole is axially spaced from the final locking hole and is positioned in front of the final locking hole;

the boss is also provided with a pre-locking surface, and the outer shell is provided with a matching pre-locking surface positioned on one side of the pre-locking hole;

when the inner shell is located at the pre-locking position, the pre-locking face abuts against the matched pre-locking face, so that the inner shell can move backwards along the axial direction only when the inner shell is subjected to an external force which is larger than a preset value and faces backwards in the axial direction, and cannot move backwards along the axial direction when the inner shell is subjected to an external force which is not larger than the preset value and faces backwards in the axial direction.

12. The connector housing assembly of claim 11, wherein:

the outer shell is provided with a boss part, the boss part is located between the pre-locking hole and the final locking hole, and the butt-joint pre-locking surface and the butt-joint final locking surface are two side surfaces of the boss part.

13. The connector housing assembly of claim 10, wherein:

the cantilever part radially protrudes out of the outer surface of the inner shell;

the inner peripheral wall of the outer shell is provided with an axially extending matching groove, so that the cantilever part is accommodated in the matching groove and moves along the axial direction.

14. The connector housing assembly of claim 13, wherein:

the inner peripheral wall of the outer shell is provided with an inclined guide part on the rear end part for guiding the lug boss to enter the matching groove.

15. The connector housing assembly of claim 11, wherein:

a stopping surface is formed outside the inner shell, and a matching stopping surface is formed inside the outer shell;

when the inner shell is located at the pre-locking position, the stop surface axially abuts against the matching stop surface to prevent the inner shell from moving forwards along the axial direction.

16. The connector housing assembly of any of claims 5-8, wherein:

the elastic lock catch further comprises:

a third protrusion protrudingly formed on one side of the free end of the elastic cantilever;

the avoidance opening of the outer shell is provided with a third blocking surface;

when the inner housing is in the pre-lock position and the terminal is not inserted into the predetermined mounting position in the inner housing, the third protrusion is pushed up by the terminal outward in the radial direction, so that the third protrusion is in a position of interfering with the third blocking surface to prevent the inner housing from moving from the pre-lock position toward the final lock position;

when the inner housing is in the prelock position and the terminal has been inserted into the inner housing at the predetermined installation position, the third projection is in a non-interfering position with the third blocking surface to allow the inner housing to be moved from the prelock position toward the final lock position.

17. A connector, comprising:

the connector housing assembly of any one of claims 1-16; and

a terminal inserted into the terminal insertion hole of the inner housing,

a recess is formed on the terminal, the recess engaging with the first projection of the resilient latch so that the terminal is locked in the terminal insertion hole.

18. The connector of claim 17, wherein:

the terminal is provided with a radial boss which is provided with a matching blocking surface, and the matching blocking surface axially abuts against the radial blocking surface of the inner shell to prevent the terminal from moving forwards along the axial direction.

19. The connector of claim 17, further comprising:

a cable connected with the terminal to form a cable assembly to be inserted into the terminal insertion hole together with the terminal.

20. The connector according to any one of claims 17-19, wherein: the connector is a radio frequency coaxial connector.

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